United States
Environmental Protection
Agency
Corvallis Environmental
Research Laboratory .
Corvallis, Oregon 97333
                                QUARTERLY
                         RESEARCH  PROGRESS REPORT
                       October 1  -  December 31,  1987

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                                            QUARTERLY
                                     RESEARCH  PROGRESS  REPORT
                                   October 1 - December 31,  1987
This research progress report, covering the period October 1  through  December
31, 1987, summarizes the current status of all  active projects  at the Corvallis
Environmental Research Laboratory.

If you have questions or would like more information, feel free to contact
either the manager listed at the end of each project, description or the
Laboratory Director.  For those who use a commercial line, dial (503) 757-  and
the 4-digit extension of the project manager.   The main  telephone number  of the
laboratory complex is (503) 757-4600.

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                              CONTENTS

                                                                 Page
Air Pollution Effects	  1
Acid Rain Effects	  9
Pesti ci des	  39
Toxic Substances 	  47
Water Qua 1ity 	61
Global Climate Change/Photobiology 	  71
Superfund/Hazardous Wastes 	  75
Cold Climate	81
Publications List 	(Blue Pages	  83

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                  Corvallis Environmental  Research  Laboratory
                 Project Status Report --  Air  Pollution  Effects
                               December 31,  1987

Title:   Economic Assessment of Ozone Impact  on Crops  (01)

Objective(s):

     Develop ozone exposure-crop response  data for  the major agronomic crops
     and use these data to conduct an economic assessment  of the  effects of air
     pollution on agriculture.  This project will develop  exposure-response
     data for crops representing 90% of the  U.S. acreage and estimate national
     economic losses based on these data.  The  magnitude  of bioenvironmental
     sources of uncertainty (soil moisture)  and the effects of pollutant
     exposure dynamics on these estimates  will also be evaluated.

Output  Status:

     Journal article on effect of soil moisture and ozone  on cotton  yield
     (10/87).   Completed.

     Journal article on assessment of soil moisture on ozone exposure response
     (12/87).   Completed.

     Journal article on the response of legumes to  constant low  levels and
     episodic ozone concentrations (12/87).  Completed.

     Book chapter on the NCLAN program for crop loss  assessment  (01/88).  On
     schedule.

     Journal article on impact of seasonal drought  and ozone on  beans (01/88).
     On schedule.

     Journal article on growth of cotton in  response  to  chronic  03 stress at
     two levels of soil moisture (01/88).  On  schedule.

     Book chapter on effects on plant growth and carbon  allocation stress
     (01/88).   On schedule.

     Book chapter on factors influencing 03  dose-response  relations  in OTC
     (01/88).   On schedule.

     Journal article on influence of exposure  dynamics on  plant  growth and
     yield (01/88).  On schedule.

     Journal article on comparison of two  winter wheat varieties  to  ozone
     (02/88).   On schedule.

     Journal article on analysis of sample frequency  for air monitoring
     (02/88).   On schedule.

     Journal article on economic consequences  of alternative seasonal ozone
     standards (03/88).  On schedule.

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     Journal article on growth and yield response of alfalfa to a range of
     oxidant exposures:  Peak versus freouency of ozone events (03/88).  On
     schedule.

     Journal article on review of exposure regimes and their uses (03/88).   On
     schedule.

     Journal article on effect of cadmium dihydrogen phosphate on the growth of
     arabidopsis (04/88).  On schedule.

     Journal article on influence of soil moisture and ozone on soybean yield
     (05/88).  On schedule.

     Journal article on influence of soil moisture and ozone on soybean physio-
     logy (05/88).  On schedule.

     Journal article on effect of soil moisture and ozone on species composi-
     tion (06/88).  On Schedule.

     Journal article on effect of water stress and ozone on carbohydrate
     partitioning in soybean (06/88).  On schedule.

     Journal article on effects of 03 and S02  on crop quality (07/88).   On
     schedule.
Activities:
     The Corvallis Environmental Research Laboratory sponsored  the  Inter-
     national Conference:  Assessment of Crop Loss  from Air Pollutants,  Raleigh,
     NC, with participation of more than 170 research scientists.   The  confer-
     ence presented final  results of EPA's National  Crop Loss Assessment
     Program.  The keynote address at the conference was presented  by Dr.  J.
     Craig Potter, Assistant Administrator for Air,  Noise, and  Radiation.   The
     proceedings will be published in two peer-reviewed publications.  General
     conclusions from the  conference were:  (1) ozone significantly reduces the
     growth and yield of many major agricultural crops; (2) potentially
     phytotoxic concentrations of ozone are widely distributed  in agricultural
     areas; (3) in economic terms, the reduced yield costs the  U.S.  economy 2
     to 4 billion dollars  annually;  (4) additional research is  reouired to
     reduce the uncertainties in the estimate and  to provide a  physiological
     basis for extrapolating the results.  Conference results will  assist  the
     Office of Air Quality Planning and Standards  in development of a secondary
     national ambient air  ouality standard for ozone.

     The NCLAN data synthesis project has finalized  the data library, developed
     functional relationships for all data sets, and completed  special  analysis
     on several data sets.  The data library contains the plant yield and  air
     quality data from all NCLAN sponsored field data, as well  as other associ-
     ated data.

     The Economic Assessment Group has completed analysis of the economic
     effects of ozone on the agricultural sector.  The modeling procedures
     incorporate confidence intervals for the economic benefits which account

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     for uncertainty in both  the exposure-response relationships and the
     underlying kriged ozone  levels  used  in  the analysis.  Interactions with
     the Federal  Farm Program have been modeled.  Also included are adjustments
     for drought  stress using the analysis developed by David King from the
     University of Portland and  a weighting  scheme for ozone exposure which
     incorporates adjustments both  for differential growth rates during the
     season and for plantings by producers.

     On December  17, Gerald Emison,  the Director of EPA's Office of Air Quality
     Planning and Standards (OAQPS)  was briefed on the NCLAN Program (its
     purpose and  accomplishments) and the need  for future crops research.

     A presentation was made  (December 14) to EPA's Clean Air Science Advisory
     Committee:  A review and interpretation of new literature published since
     the Criteria Document for Ozone and  other Photochemical Oxidants was
     issued and new analyses  by  CERL scientists to develop alternative ozone
     exposure indices relating ozone exposure to reduced crop yield.  The
     alternative  exposure indices were developed to assist OAQPS staff in
     determining  the appropriate averaging time for a welfare (secondary)
     standard.

Findings:

     Research was conducted to determine  the impact of soil moisture stress on
     ozone sensitivity of crops. Goal of the analysis was to develop drought
     stress correction factors,  through simulation modeling, to use in adjust-
     ing ozone-response functions for crops  as a part of EPA's National Crop
     Loss Assessment (NCLAN)  Program.  Simulation modeling was used to derive
     yield correction factors from two models:  one estimates the influence of
     soil moisture deficits on regional yield; the second predicts moisture
     stress x ozone interactions, The influence of soil moisture status on the
     progression  of ozone damage was simulated along with the impact of ozone
     damage on the subsequent soil moisture. Model results were validated
     using data from drought  x ozone interaction field studies from NCLAN.
     Model outputs were combined with measures of regional moisture stress to
     predict drought impacts  on  corn, soybean, wheat and cotton for the years
     1979-83.  Results predict an approximate 20% drought-induced reduction in
     crop sensitivity to ozone.   An  investigation into the combined effects
     ozone and soil moisture  deficit on cotton yielded the following finding:
     (1) soil moisture deficit can decrease  the impact of ozone on cotton yield
     and foliar injury; (2) the  interaction  of the two stresses did not signifi-
     cantly change seed quality. On irrigated  farms, ozone can significantly
     reduce cotton yields, however,  on non-irrigated farms ozone will impair
     yield only on years of average  or more  rainfall which eliminate the soil
     moisture deficit factor.

Publications:

     Published:

     Flagler, R.  B., R. P. Patterson, A.  S.  Heagle, and W. W. Heck.  1987.
          Ozone and soil moisture deficit effects on nitrogen metabolism of
          soybean.  Crop Science 27:1177-1184.

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Heagle, A. S.,  R.  B.  Flagler,  R. P. Patterson, V. M. Lesser, S. R. Shafer,
     and W. W.  Heck.   1987.   Injury and yield response of soybean to
     chronic doses of ozone  and soil moisture deficit.  Crop Science
     27:1016-1024.

Lefohn, A. S.,  C.  E.  Davis,  C. K. Jones, D. T. Tingey, and W. E. Hogsett.
     1987.  Co-occurrence  patterns of gaseous air pollutant pairs at
     different  minimum concentrations in the United States.  Atmospheric
     Environment 21:2435-2444.

Temple, P. J.,  R.  W.  Lennox, A. Bytnerowicz, and 0. C. Taylor.  1987.
     Interactive effects of  simulated acidic fog and ozone on field-grown
     alfalfa.  Environmental and Experimental Botany 27 :409-417 .

Accepted for Publication:

Floyd, R. A., M. S. West,  K. Eneff, W. E. Hogsett, and D. T. Tingey.
     Hydroxl free  radical  mediated formation of Shydroxyguanine in iso-
     lated DNA. Archives  Biophys. Biochem. (in press).

King, D. A., A. S. Heagle, and R. B. Flagler.  Evaluation of an ozone x
     moisture stress  interaction model for soybean.  Ecological Modelling
     (in press).

Submitted for Publication:

Adams, R. M., J. D. Glyer, B.  A. McCarl , and S. L. Johnson.  A reassess-
     ment of the economic  effects of ozone on U.S. agriculture.  Journal
     o_f Air Pollution Control  Association (submitted).

Heagle, A. S.,  J.  E.  Miller, W. W. Heck, and R. P. Patterson.  Injury and
     yield response of cotton  to chronic doses of ozone and soil  moisture
     deficit.  Agronomy Journal (submitted).

Presentations:   The following  papers were presented by NCLAN participants
at the International  Conference:  Assessment of Crop Loss from Air Pollut-
ants, Raleigh,  North  Carolina, October 25-29, 1987).  Papers approved for
publication after  peer review  will be published by Elsevier Publishers in
a hardbound book and  a special issue of Environmental Pollution.

Invited Papers:

Adams, R. M.  Specific economic approaches, results and implications
     arising from  the NCLAN  program.

Heagle, A. S.,  L.  W.  Kress,  P. J. Temple, R. J. Kohut, J. E. Miller, and
     H. E. Heggestad.  Factors influencing ozone dose-yield response
     relationships in open-top field chambers.

Hogsett, W. E.   Pollutant  exposure dose concepts for use in crop assess-
     ments.

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     Laurence,  J.  A., and D. S. Lang.  Estimating changes in  crop  growth and
          yield due  to  environmental stress.

     Miller,  J. E.  Effects on plant growth and carbon allocation  associated
          with  air pollutant stress.

     Preston, E. M., and D. T. Tingey.  The NCLAN program crop loss  assessment

     Rawlings,  J.  0., V. M. Lesser, and K. A. Dassel.  Statistical approaches
          to  assessing  crop losses.

     Contributed Papers:

     Amundson,  R.  G., R. J. Kohut, J. A. Laurence, and L. W.  Weinstein.  Use of
          gas exchange  measurements to explain ozone-induced  changes in crop
          growth and yield.

     Dassel,  K. A.,  and J. 0. Rawlings.  Experimental design  for the Weibull
          function as a dose response model.

     Irving  P.  M., L. W. Kress, W. Prepejchal , and H. J. Smith. The influence
          of moisture stress or sulfur dioxide exposure on physiological
          processes  in  soybeans and corn exposed to ozone.

     King, D. A.  Modeling the impact of ozone x drought interactions on
          regional crop yields.

     Kohut,  R.  J., and  J. A. Laurence.  The influence of ozone exposure
          dynamics on plant growth and yield loss from air pollutants.

     Lee, E.  H., D.  T.  Tingey, and W. E. Hogsett.  Evaluation of ozone exposure
          statistics in exposure-response relationships.

     Lefohn,  A. S.,  H.  P. Knudsen, and L. R. McEvoy.  The use of kriging to
          estimate monthly ozone exposure parameters for the  Southeastern
          United States.

     Moser,  T.  J., D. T. Tingey, K. D. Rodecap, C. S. Clark,  and L.  W. Joos.
          Water stress/ozone interactions on physiological  and growth responses
          in  bush  bean.

     Temple,  P. J.,  R.  S. Kupper, R. S. Lennox, and K. Rohr.   Physiological
          growth responses of differentially-irrigated cotton to ozone.

Project Manager:  David T. Tingey  FTS 420-4621/4600

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                  Corvallis Environmental  Research Laboratory
                 Project Status Report --  Air Pollution Effects
                               December 31,  1987

Title:  Assessment of Ozone Impacts on Forests (06)

Objective(s):

     (1) Determine response of commercially/ecologically important  forest  tree
     species under a range of ozone scenarios for  those forest types  most  at
     risk to ozone.  (2) Determine the relationship  between  components  of  ozone
     exposure (e.g., concentration, freauency, duration and  respite time)  and
     tree response, and once Quantified, (a)  develop realistic exposure-
     response functions and (b) examine the  biological  relevance of alternative
     air Quality statistics that are meaningful in an air Quality standards
     context.  (3) Predict the influence of  various  ozone air Quality scenarios
     on productivity and composition of forest trees over time and  across
     forest types.

Output Status:

     Journal article on the effects of ozone on growth of Pinus  banksiana
     (03/88).  On schedule.

     Journal article on the effect of 03/S02  on growth of Pinus  elliottii
     (07/88).  On schedule.

     Journal article on the development of fog exposure regimes  (06/88).   On
     schedule.

     Journal article on the growth response  of 5 western conifer species to
     seasonal exposure of acid fog and ozone (12/88).  On schedule.

     Journal article on the influence of acid fog  on foliar  leaching  in
     Douglas-Fir (06/88).  On schedule.

     Internal report on the effect of acid fog on  nitrate reductase,  glutamine
     synthetase and glutamate dehydrogenase  activity in western  conifers
     (06/88).  On schedule.

     Interim report to OADEMQA on project  progress:   Hydrogen peroxide  effects
     on conifers (12/87). Completed.

     Interim report to Western Conifer Cooperative/FRP:  Foliar  leaching of
     nutrient from conifer needles with acid  mist  (10/87).  Completed.

     Interim report to Western Conifer Cooperative/FRP:  Growth  response of 5
     western conifer species to seasonal exposures of acid fog and  ozone,  and
     winter exposures of S02 (10/87).  Delayed to  01/88 because  of  longer  than
     anticipated growing season for data collection.

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Activities:
     A comprehensive research plan is being prepared which presents the
     approach for studying the impact of ozone on  forest species,  and  details
     the experimental studies required to accomplish the tasks.   This  plan  will
     be submitted for peer-review and a final  plan produced before starting the
     project.

     Contacts have been made for growing the forest species needed in  this
     research project, and seed and seedling sources have been located.
Publications:
     Hogsett, W. E., David Olszyk. Douglas P.  Ormrod,  George E.  Taylor,  Jr.,
          and David T.  Tingey.   1987.   Air Pollution Exposure Systems  and
          Experimental  Protocols.  Volume I.   A Review and Evaluation  of
                        Volume II.  Descriptions of Facilities.  EPA/600/3-87/
                        Environmental  Protection Agency,  Corvallis,  Oregon.
Performance.
037a,b.  U.S.
Project Manager:  W. E. Hogsett  FTS 420-4632/4600

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                  Corvallis Environmental  Research  Laboratory
                   Project Status  Report  —  Acid  Rain Effects
                               December 31,  1987

Title:  National  Lake Survey (51)

Objective(s):

     Determine the percentage,  distribution, and  characteristics of low pH and
     low alkalinity lakes.

     Determine the percentage,  distribution, and  characteristics of fishless
     lakes.

     Determine whether long term chemical  and biological changes are occurring
     in lakes.

Output Status:

     Progress  report on status  of  regional case studies (Florida, north-central
     Wisconsin, Upper Peninsula of Michigan, and  Adirondacks) on surface water
     characteristics relating to acid deposition  (03/88).  On schedule.

     Maps depicting pH, sulfate, and acid  neutralizing capacity of Western lake
     populations (01/88).  On schedule.

     Draft report on seasonal chemical variability  in Eastern lakes (06/88).
     Data bases have been verified. Poor  quality of some of the data may delay
     the final report.

Activities:

     National  Lake Survey, Phase I: Data  analysis  interpretations on the
     results of the Eastern and Western Lake Surveys continue.  Two manuscripts
     were submitted this quarter and several additional manuscripts are in
     preparation.

     National  Lake Survey, Phase II:  The  verified  data base for the seasonal
     samples has been received  and validation of  this data base has been
     completed.  Data analysis  runs on the population estimates have been
     completed.  Re-analysis of some samples is planned and further data inter-
     pretation will be delayed  pending revision of  the data base.

     The results of the Western Lake Survey  were  presented at the annual
     meeting of the American Water Resources Association (11/87).

Findings:

     Lakes in  wilderness areas  of  the western United States generally contain
     lower concentrations of acid  neutralizing capacity, base cations, sulfate,
     and dissolved organic carbon  than non-wilderness lakes in the same
     subregions.  The results of the Western Lake Survey support earlier
     contentions that lakes in  USFS wilderness areas are sensitive to a variety

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     of perturbations and warrant a conservative approach to managing  these
     resources.   Sensitivity of western lakes to acidification is difficult  to
     predict on  the basis of watershed factors because of local  variations in
     geology and hydrology.  Seasonal data for lakes monitored as long as  seven
     years show  that spring lakes chemistry can be predicted to a large degree
     using fall  chemistry:  88% of the variance in spring acid neutralizing
     capacity could be  accounted for on the basis of the fall data.   Therefore,
     one of the  major criticisms of the National Lake Survey has been resolved.

Publications:

     Published:

     Blick, D. J., J. J. Messer, D. H. Landers, and W. S. Overton.  Statistical
          basis  for the design and interpretation of the National Surface  Water
          Survey, Phase I:  Lakes and Streams.  Lake and Reservoir Management
          111:470-475.

     Brakke, D.  F., A.  Henriksen, and S. A. Norton.  1987.  The relative
          importance of acidity sources for humic lakes in Norway.  Nature
          329:432-434.

     Eilers, J.  M., P.  Kanciruk, R. A. McCord, W. S. Overton, L. Hook, D.  J.
          Blick, D. F.  Brakke, P. E. Keller, M. S. DeHaan, M. E. Silverstein,
          and D. H. Landers.  1987.  Characteristics of Lakes in the Western
          United States.  Volume II.  Data Compendium for Selected Physical  and
          Chemical Variables.  EPA-600/3-86/054b.  U.S. Environmental  Protec-
          tion Agency,  Washington, D.C.  425 pp.

     Eilers, J.  M., D.  H. Landers, D. F. Brakke, and R. A. Linthurst.  1987.
          Factors contributing to differences in acid neutralizing capacity
          among  lakes in the western United States.  In R. F. Dworsky (ed.).
          Water  Resources Related to Mining and Energy -- Preparing  for the
          Future. American Water Resources Association, Bethesda, Maryland.
          pp. 403-418.

     Eshleman, K. N., D. J. Blick, P. R. Kaufmann, M. E. Mitch, S. M. Stambaugh,
          and J. J. Messer.  Acid-base status of surface waters in the Southern
          Blue Ridge:   a comparison of results from the National Surface Water
          Survey. Lake and Reservoir Management 111:476-481.

     Landers, D. H., J. M. Eilers, D. F. Brakke, W. S. Overton, P. E. Keller,
          M. E.  Silverstein, R. D. Schonbrod, R. E. Crowe, R. A. Linthurst,  J.
          M. Omernik, S. A. Teague, and E. P. Meier.  1987.  Characteristics of
          Lakes  in the  Western United States.  Volume I.  Population Descrip-
          tions  and Physico-Chemical Relationships.  EPA-600/3-86-054a. U.S.
          Environmental Protection Agency, Washington, D.C.  176 pp.

     Messer, J.  J., D.  H. Landers, R. A. Linthurst, and W. S. Overton.  1987.
          Critical design and interpretive aspects of the National Surface
          Water  Survey. Lake and Reservoir Management 111:463-469.
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     Newell, A. D., C. F.  Powers,  and S.  J.  Christie.   1987.   Analysis  of  data
          from long-term monitoring of lakes.   EPA-600/4-87/014.   U.S.  Environ-
          mental Protection Agency, Corvallis,  Oregon.   150 D.

     Wiener, J. G., and J.  M.  Eilers.  1987.   Chemical  and  biological  status  of
          lakes and streams in the Upper  Midwest:   assessment  of  acidic deposi-
          tion effects.  Lake  and  Reservoir  Management  111:365-378.

     Accepted for Publication:

     Kramer, J. R., and S.  S.  Davies.  Estimation  of non-carbonate protolytes
          for selected lakes in the Eastern  Lake Survey. Environmental Science
          and Technology (in press).

     Landers, D. H., W. S.  Overton, R. A.  Linthurst, and D. F.  Brakke.   EPA's
          Eastern Lake Survey:  Regional  estimates of  lake  chemistry.   Environ-
          mental Science and Technology (in  press).

     Lee,  S., and J. L. Schnoor.  Reactions  which  modify chemistry in  lakes  in
          the National Surface Water Survey.   Environmental Science and Technol-
          ogy (in press).

     Sullivan, T. J., J. M. Eilers, M. R.  Church,  D. J.  Blick,  K.  N. Eshleman,
          D. H. Landers, and M. S. DeHaan.   Atmospheric  wet sulfate deposition
          and lake water chemistry.  Nature  (in press).

     Sullivan, T. J., C. T. Driscoll, J.  M.  Eilers, and  D.  H.  Landers.   Evalua-
          tion of the role of  sea  salt inputs  in the long-term acidification  of
          coastal New England  lakes.  Environmental Science and Technology (in
          press).

     Wright, R. F.  Acidification  of lakes in  the  eastern United  States and
          southern Norway:   a  comparison.  Environmental Science  and Technology
          (in press).

     Submitted for Publication:

     Eilers, J. M., D. F.  Brakke,  D. H. Landers, and W.  S.  Overton.  Chemistry
          of wilderness lakes  in the western  United States. Environmental
          Monitoring and Assessment (submitted).

Project Manager:  Dixon H.  Landers  FTS 420-4695/4600
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                  Corvallis Environmental  Research Laboratory
                   Project Status  Report -- Acid  Rain Effects
                               December 31, 1987

Title:   National Stream Survey (52)

Objective(s):

     Characterize the chemistry of acidic  and low alkalinity streams  in  sensi-
     tive regions of the U.S. and  determine their extent and geographic  distri-
     bution.  Determine normal seasonal variability in stream chemistry.
     Determine the relationship between key biological resources  and  the
     chemical  characteristics of streams.   Classify streams in order  to
     identify representative systems for more in-depth study.

Output Status:

     Phase I Pilot Survey Report (12/87).   Printing completed.

     Data base audit draft document (12/87).  Completed.

     Phase I Survey Report review  draft (12/87).   Completed.

Activities:

     Phase I Mid-Atlantic/Southeast screening data base audit completed.
     Preparations underway for releasing data base and entering it  into  STORET.
     Phase I design, methods, results, and data interpretation reported  in
     external  review draft document completed 12/87.

Publications:

     Eshleman, Keith N., and Philip R. Kaufmann.   Assessing the regional
          effects of sulfur deposition on  surface water chemistry:  The
          Southern Blue Ridge.  Environmental Science and Technology  (in
          press).

     Messer, J. J., C. W. Ariss, J.  R. Baker, S.  K. Drouse, K. N. Eshleman,  P.
          R. Kaufmann, R. A. Linthurst, J. M. Omernik, W.  S. Overton,  M.  J.
          Sale, R. D. Schonbrod, S.  M. Stambaugh  ,and J. R. Tuschall,  Jr.
          National Lake Water Survey:   National Stream Survey Phase I-Pilot
          Survey.  EPA/600/4-86/026.  U.S. Environmental Protection Agency,
          Washington, D.C.

Project Manager:  Philip R. Kaufmann  FTS  420-4612/4600
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                  Corvallis Environmental  Research  Laboratory
                   Project Status Report  —  Acid  Rain  Effects
                               December 31,  1987
Title:  Biologically Relevant Chemistry (53)
Objective(s):
     Determine changes in surface water chemical  variables  caused by acidic
     deposition that may pose a threat to fisheries.   Develop  predictive model
     of the effects of surface water  acidity on  fish.
Output Status:
     Final report on impact of acidification on mercury  accumulation and fish
     community structure (03/88).  On schedule.
     Final draft report on fish community status  as a  function of water quality
     in the Upper Peninsula of Michigan (09/88).  On  schedule.
     Final report on fish community status as a  function of water quality  in
     the Upper Peninsula of Michigan  (11/88). On schedule.
Activities:
     Field fish survey completed.
     Michigan  State University personnel  completed  compiling data from the fish
     survey into computer files.
     An annotated outline for the project review  draft report  was finalized.
     Fish aging of samples collected  for  mercury  analyses was  completed.
Project Manager:  Robert F. Cusimano   FTS 420-4709/4600
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                  Corvallis Environmental  Research  Laboratory
                   Project Status Report  —  Acid  Rain  Effects
                               December 31,  1987

Title:  Effects of Acidic Deposition on Human  Health  (54)

Objective(s):

     Estimate  potential  health effects attributed to  toxic metal mobilization/
     bioaccumulation due to acid deposition.

Output Status:

     Final  report on factors contributing  to mercury  accumulation  in muscle
     tissue of fish collected during Phase  II  of  the  ELS  (08/88).  On schedule.

     Review draft report on assessment of the  potential effects of lake acidity
     on bioaccumulation  of mercury by fish  in  the Upper Peninsula  of Michigan
     (08/88).   On schedule.

     Final  draft report  on assessment of  the potential effects of  lake acid-
     icity on  bioaccumulation of mercury  by  fish  in the Upper Peninsula of
     Michigan  (11/88).  On schedule.

Activities:

     Field sampling completed.

     Michigan  State University personnel  completed  aging  of  fish samples
     collected for mercury analysis from  the Upper  Peninsula of Michigan.
     Aging information data have been sent  to  Cornell  University researchers
     and will  be used to interpret mercury  levels found in fish tissue.

     Fish tissue is being processed at Cornell  University by Dr. Steven Gloss
     and analyzed for mercury content at  Syracuse University by Dr. Charles T.
     Driscoll  .

Findings:

     Preliminary analysis of the aging information  vs. defined size classes to
     determine age indicate there is considerable variability in size within
     any given age class.  These results  indicate that age data is needed to
     select the individual fish for mercury  analysis.

Project Manager:  Robert F. Cusimano FTS  420-4709/4600
                                       17

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18

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                  Corvallis Environmental  Research  Laboratory
                   Project Status Report —  Acid  Rain  Effects
                               December  31,  1987

Title:  Watershed Manipulation Project (55)

Objective(s):

     Investigate and quantify the relationship  between the watershed processes
     that influence the acidity of surface waters and  the impact that acidic
     deposition has on them.  Critically evaluate the  models used in the
     Direct/Delayed Response Project and the predictions/classifications
     derived from that project.  Provide mechanistic data to refine/revise
     those models as necessary.

Output Status:

     Progress  report on Watershed Manipulation  Project (12/87).  Completed.

     Final report of DDRP model sensitivity  and uncertainty analysis (06/88).
     On schedule.

     Progress  report on the watershed manipulation  project (12/88).  On
     schedule.

     Journal article on residence time distribution of soil water on a hill-
     slope (12/88).  On schedule.

Activities:

     Experimental acid additions to the  Field Manipulation Trial (FMT) plots
     were completed.  Soil solutions have been  analyzed for major chemical
     constituents; soil samples have been collected from the plots, and will be
     analyzed  for pH, cation exchange capacity, exchangeable bases, and extract-
     able sul fate.

     Data collection has been initiated  at two  precipitation stations located
     at the recently established Bear Brook  research site in southeastern
     Maine.  Site selection criteria, field  sampling protocols, and quality
     assurance methods are compatible with NADP.

     A radiotelemetry monitoring system  is operating on a preliminary basis at
     Bear Brook.  The network will allow remote programming, remote downloading
     of data,  and real time data observation via  modem.

     WMP cooperating scientists have completed  chemical  analyses of soils
     collected from the experimental plots located  adjacent to the Bear Brook
     watersheds.  The external experimental  plots will be irrigated with
     various levels and combinations of  sulfuric  and nitric acids for an
     evaluation of dose response.

     WMP cooperating scientists have initiated  a  suite of laboratory experi-
     ments with a bulk, homogenized soil prepared from the Bear Brook site.
     Some of the experiments include examining  effects of nitrification inhib-


                                       19

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     itors on solution  chemistry, testing weathering slope constants, assessing
     excess ammonium addition  on nitrification rates, and generating sulfate
     adsorption isotherms.

     ERL-C scientists compiled  the  first annual in-house progress report on the
     WMP.  The report summarizes site development, research progress, initial
     .findings, and  modeling  activities associated with the Bear Brook study
     site.
Findings:
     WMP scientists from  the  nitrogen and sulfur task groups evaluated the
     effects of handling  procedures  and methodology on the determination of
     sulfur in vegetation soil, and  sediments.  Experiments indicate that an
     automated S analyzer, when properly calibrated, yields precise and
     accurate measurements.  Freeze-drying was found to cause less alteration
     in S constituents  than air-drying.  WMP scientists will apply these
     findings in subsequent experimental activities.

     In laboratory studies simulating snowmelt leaching of forest soils, nitric
     acid leached more  aluminum than sulfuric acid from soil columns containing
     a forest floor-spodic horizon sequence thought to be highly sensitive to
     acidification by acid precipitation.  The research suggests that the kind
     of acid leaching these horizons becomes important when predicting effects
     of acid deposition on surface water acidification.

     In a companion experiment, it was  found that the presence of a forest
     floor in soil  column leaching studies significantly increased the aluminum
     concentration leached from the mineral soil.  The results demonstrate the
     importance of considering the chemical composition of soil leachates at
     the forest floor-mineral horizon boundary when evluating how acid precipi-
     tation effects aluminum  concentration in drainage waters.

Publications:

     David, M. B., M. J.  Mitchell, D. Aldcorn, and R. B. Harrison.  1987.
          Analysis of sulfur  in soil, plant, and sediment materials:  use of
          freeze-drying and an automated analyzer.  Soil Biology and Biochem-
          istry (submitted).

     David, M. B., G. J.  Vance, J. Rissing, and R. J. Stevenson.  1987.
          Importance of organic carbon  in forest soil processes.  Agronomy
          Abstracts, p.  254. American Society of Agronomy, Madison, Wisconsin,

     James, B. R., and  S. J.  Riha.   1987.  Aluminum leaching by acid precipita-
          tion in forest  soils:   I.  Nitric-sul furic acid differences.  SSSA
          Journal (submitted).

     James, B. R., and  S. J.  Riha.   1987.  Aluminum leaching by acid precipita-
          tion in forest  soils:   II. Role of the Forest Floor.  SSSA Journal
          (submitted) .

Project Manager:  P. J. Wigington, Jr.  FTS 420-4666/4600


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                  Corvallis Environmental  Research Laboratory
                   Project Status Report -- Acid  Rain  Effects
                               December 31, 1987

Title:  Long-Term Monitoring/TIME (56)

Objective(s):

     Determine future trends in surface water Quality  relative to  the  effects
     of current or changing levels of acidic deposition  at regional  or national
     scales, to provide information necessary for regulatory decisions,  and  to
     verify predictive models of acidification or recovery.

Output Status:

     Report on monitoring the effects of acid rain on  the  water Quality of
     Laurel Ridge, Pennsylvania, streams (12/87).  Complete.   Final  report sent
     to USGS Headquarters for publication.

     Report on monitoring the sensitivity of streams  in  the Sandhills  Region of
     North Carolina to acidic deposition (10/87).  A combination of  drought
     conditions and USGS field crew priorities delayed samoling of the final
     storm event needed to complete the study.

     Report on monitoring the water Quality of six streams in the  Catskill
     Mountains, New York (12/87).  Draft reviewed by ERL-C;  final  draft in USGS
     review.

     Draft analysis of sampling strategies  for the detection of long-term
     trends in surface water acidification  (01/88). On  schedule.

     Draft report on statistical design and analysis criteria for  TIME (draft
     data analysis plan) (05/88).  On schedule.

     Report on recommendations for biological monitoring in the TIME project
     (05/88).-  On schedule.

     Peer reviewed TIME Research Plan (08/88). On schedule.

     Report on selected TIME sites (08/88).  On schedule.

     Final report on long term acid rain lake studies- State of Vermont
     (03/88).  On schedule.
                                                           /
     Final report on program to evaluate long term change  in  the chemistry of
     Adirondack lakes (05/88).  On schedule.

     Final report on lake monitoring for acid precipitation effects  in the
     Upper Great Lakes region (02/88).  On  schedule.

     Long Term Chemical and Biological Monitoring of Maine Lakes (09/88).  On
     schedule.
                                       21

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Activities:

     Planning for the Temporally Integrated Monitoring of Ecosystems (TIME)
     Project continued:

     A QA workshop was held in Las Vegas to evaluate experiences with QA  data
     to aid in designing an optimal QA program for TIME.   The  workshop outlined
     QA/QC approaches taken for the National Surface Water Survey,  and then
     prioritized major issues and discussed QA approaches.  A  preliminary
     summary of the workshop has been prepared.

     Actions to investigate the costs and benefits of various  strategies  for
     using biological information at various tiers of TIME were continued.
     Reports on the usefulness of each organismal group to detect surface water
     acidification and/or recovery were completed for five groups:   fish,
     chrysophytes, diatoms, dinoflagellates, and blue-green and green algae.
     Similar reports were previously completed for zooplankton, periphyton,
     benthic invertebrates in lakes, and benthic invertebrates in streams.
     These reports will  be used as the basis for a workshop being planned for
     March to explore realistic strategies and benefits for biological monitor-
     ing.

     A cluster analysis  workshop was held at ERL-C to analyze  and interpret
     data from four Phase I regions (1, 2, 3b, and 4).  The cluster analyses
     were successful in  separating regional populations into specific lake
     types.  Analyses were performed on weighted data, producing population
     estimates for each  cluster.  A draft summary of the workshop has been
     completed.

     Analysis of the Clearwater Lake data set is continuing.  This  lake has the
     longest record (14  years) in North America and has the advantage of  being
     situated in an area (Sudbury) in which deposition has changed  dramatically
     since monitoring began.   The analyses show that, for this extreme case,
     all four of the statistical techniques applied showed trends in seasonal
     data for ANC and $04 within five years.

     An outline of the Data Quality Objectives Document has been completed.

     Work on the draft Data Analysis Plan has begun.  Preliminary outlines for
     several chapters are complete.  The final format for the  plan  is not yet
     complete.

     A draft report on suitability for the TIME project of U.S. sites with
     preexisting watershed and/or monitoring information is under review.

Project Manager:  Jesse  Ford  FTS 420-4643/4600
                                       22

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                  Corvallis Environmental Research Laboratory
                   Project Status Report -- Acid Rain Effects
                               December 31, 1987

Title:  Direct/Delayed Response of Watersheds (57.1)

Objective(s):

     Predict the long-term response of watersheds and surface waters to acidic
     deposition; classify watershed system response as direct, delayed or
     capacity protected.  The Agency and Congress require information concern-
     ing rate of acidification and its reversibility.  It is not known whether
     aauatic resources will deteriorate if emissions are held constant or
     decreased or whether aquatic resources will improve.  This work is
     necessary for informed decision making concerning the timing and necessity
     for additional emission controls.

     A three-tiered approach is employed to classify watersheds.  Level I
     entails statistical analysis of watershed characteristics and water
     chemistry and evaluated watershed and regional input-output elemental
     budgets.  Level II estimates single factor response times for watersheds
     emphasizing key properties (e.g., sulfate adsorption capacity, base satura-
     tion, and indices of soil-water contact).  Level III used dynamic system
     models to integrate important processes and predicts changes in watershed
     properties and surface water chemistry.  A soil survey is an important
     aspect of the approach in that it provides data for Level I, II, and III
     analyses.

Output Status:

     QA Report on SE soil mapping (11/87).  Completed.

Activities:

     Continued statistical analysis of relationships among watershed soils  and
     lake water chemistry in the Northeast.  Continued analyses of sulfur
     input-output budgets in the Mid-Appalachia Region.  Mapped 13 of 45
     watersheds in Northeast of special interest (i.e., unexpectedly high
     sulfur retention).  Mapped 5 of 36 watersheds in Mid-Appalachian region.

     Presented 18 posters at the annual meeting of the Soil Science Society of
     America in Atlanta in December.

     At the annual meeting of the American Geophjysical Union in December,
     Project Manager chaired a session on modeling efforts of acidic deposi-
     tion.

Project Manager:  M. Robbins Church  FTS 420-4666/4600
                                       23

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24

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                  Corvallis Environmental Research Laboratory
                   Project Status Report -- Acid Rain Effects
                               December 31, 1987

Title:  Episodic Response Project. (58)

Objective(s):

     Determine the magnitude, duration, and frequency of episodic chemical
     changes that accompany hydrologic events (both snowmelt and rainstorms)  in
     streams of the U.S.

     Determine whether episodic chemical changes in streams have long-term
     impacts on fish populations.

     Improve regional estimates of the effects of acidic deposition on  fish
     populations through consideration of episodic chemical changes.

     Estimate the number and proportion of surface waters in specific regions
     that are likely to experience biologically relevant acidic episodes.

Output Status:

     Draft research plan for the Episodic Response Project (10/87).  Completed.

     Peer-reviewed research plan for the Episodic Response Project (02/88).   On
     schedule.

Activities:

     Development of project data quality objectives, sampling methods,  quality
     assurance protocols, and the research plan proceeded on schedule.   A major
     activity during this period was finalizing the design of the biological
     research component of the Episodic Response Project (ERP) that will be
     funded jointly with the Biologically Relevant Chemistry Project.  Fish
     transplant experiments will be carried out in streams in each of three
     regions of the eastern U.S; fish migration and mortality in response to
     acidic episodes will be measured in 4-6 stream reaches in each region,  in
     addition to intensive chemical monitoring and field bioassays of toxicity.
     Chemical monitoring is scheduled to begin in spring, 1988 with biological
     studies beginning in summer 1988.  A peer review workshop was held in
     November to evaluate the technical merits of the proposed approach to
     conducting regional-level research on episodic acidification.  Seven peer
     reviewers were unanimous in their support of the project objectives and
     its contribution to understanding and quantifying the aauatic effects of
     acid deposition, but recommended that the extensive survey components of
     the ERP not be carried out at least until results from the intensive
     research are able to establish a linkage between chemical and biological
     impacts.

     Research proposals have been received from groups in three regions of the
     eastern U.S.:  (1) the northern Appalachian Plateau in Pennsylvania,  (2)
     the Adirondacks in New York, and (3) the Catskills/Poconos in New  York.


                                       25

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     -'hese regions were previously identified as high priority for episodic
     research based on preliminary regional  analyses  using  empirical  models  and
     National Surface Water Survey data bases.  Evaluation  of proposals for
     their technical merit and for their likelihood of meeting the overall ERP
     objectives has begun.

     Wet and dry deposition monitoring stations have been installed at the
     Fernow Experimental Forest by EPA in accordance with NADP/NTN protocols.
     USGS minimonitors for continuous measurements of pH, conductivity, and
     temperature were installed at weirs on  both manipulated and  control
     catchments during December.   Two automatic water samplers were also
     installed at the same time.   Both will  be programmed to sample during
     stormflow events, triggered  by an increase in stage.  Watershed  soil maps
     have been completed by the West Virginia Soil Conservation Service using
     protocols developed by the Direct/Delayed Response Project.   Draft imple-
     mentation and Quality assurance plans have been completed and are in
     revision.  Stream and soil sampling will begin after review and  approval
     of these plans.  Monitoring  is expected to begin in January 1988.
Findings:
     Application of simple models of episodic acidification showed that the
     Adirondacks are the highest priority region of study in the northeast; the
     northern Appalachian Plateau and the Catskills/Poconos are the highest
     priority regions in the mid-Atlantic.   Results have confirmed that simple
     empirical models are a useful tool  in  quantifying the regional importance
     of acidic episodes in lakes and streams.  Statistically-significant
     relationships between pH,  ANC,  Ca^"1", and Al vs. mean daily stream dis-
     charge were found for five streams  in  the eastern U.S.

Publications:

     Eshleman, K.  N., and P. R. Kaufmann.  Assessing the regional  effects of
          sulfur deposition on  surface water chemistry:   the Southern Blue
          Ridge.  Environmental Science  and Technology (in press).

Project Manager:  Keith N. Eshleman   FTS 420-4666/4600
                                       26

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                  Corvallis Environmental  Research Laboratory
                   Project Status Reoort -- Acid Rain Effects
                               December 31, 1987

Title:  Synthesis and Integration of Aquatic Effects Research (59)

Objective(s):

     Provide comprehensive and integrated  interpretation of information  germane
     to understanding the current and future effects of acidic deposition  on
     surface waters.

Output Status:

     Report on preliminary findings -- Regional  Case Studies Project  (to
     OADEMQA) (03/88).  On schedule.

Activities:

     Prepared and edited several  water chemistry data bases for the Upper
     Midwest region for use in the Regional Case Studies (RCS) Project.

     Established and maintained a computer bibliographic system (Reference
     Manager) for use in preparing the reference section of the Regional Case
     Studies book.

     Held meeting of RCS participants to discuss and plan synthesis and
     integration for the RCS book.

     Initiated funding process with four RCS participants.

     Reviewed precipitation data  from Rudy Husar for all ESL and WSL  lakes.

     Prepared map showing location of all  RCS regions.

     Drafted white papers on important RCS issues:  ion ratio, definition  of
     ANC and alkalinity, enrichment factor analysis, and calculation  of  organic
     acid concentrations.

     Initiated efforts with Dr. Jenne, Battelle  Pacific Northwest Laboratories,
     to provide the capability of evaluating additional deposition  scenarios
     via the DDRP models, ILWAS,  MAGIC, and EOT.

     Continued development of the chapter  outlines and planning for the  1990
     Aquatic Effects Research Program Report.

     Met with PNL staff to plan the efforts to address regional dose-response
     relationships (Target Loadings) and quantification of  recovery rates  for
     acidified systems.
                                       27

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     Discussed proposed  effort  to  develop regional estimates of future surface
     water status based  on  ELS  data  and MAGIC with University of Virginia
     staff.  Effort would  follow methods developed and applied to the Norwegian
     lake survey data.

Findings:

     Data analysis is  ongoing.   First drafts of book chapters are due March
     1988.

Project Manager:  Donald F. Charles   FTS 420-4329
                                       28

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                  Corvallis Environmental  Research Laboratory
                   Project Status Report -- Acid  Rain  Effects
                               December 31, 1987

Title:  Synthesis and Integration of Air Pollution Research  on  the  Forest
        Response Program (63)

Objective(s):

     Provide leadership and scientific support in the  large  scale synthesis and
     integration of forest research activities by quantifying the effects of
     acid rain on the health and productivity of  forests.

Output Status:

     Report on evaluation of new dendrochronological methods (10/87).   Com-
     pleted.

     Report on evaluation of tree ring studies on two  groups of red spruce
     (10/87).   Completed.

     Report on evaluation of Pennsylvania  gradient study (09/87).   Delayed to
     01/88; scope of work was increased.

     Report on framework for the role of stand dynamics  in estimating  pollution
     effects (07/87).  Delayed to 01/88; scope of work was increased.

     Report on initial results from the FIBER matrix model (10/87). Completed.

     Report on feasibility study on 07/88  yield projections  in  TRIM-compatible
     format (09/87).  Completed.

     Report evaluating tree-ring studies on low elevation  red spruce (01/88).
     On schedule.

     Report on Quantitative estimate of seedling  response  to sulfur, nitrogen,
     and associated pollutants under ambient conditions  (04/88).  On schedule.

     Annual report for the Synthesis and Integration Project (04/88).   On
     schedule.

     Report on analysis of growth trends in southern pine  plantations  (06/88).
     On schedule.

Activities:

     A decision on a Long-Term Monitoring  Program will be  made  after January
     1988.  In preparation, the Synthesis  and Integration  staff will produce
     four reports by January on decision-making and planning a  Long-Term
     Monitoring Program for forests.  Drafts of those  reports have  been
     completed.
                                       29

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     Staff met with principal investigators from the Forest Response  Program
     Research Cooperatives to discuss S&I  data needs for the FRP  Seedling
     Report due in early 1988.  Summary data were subsequently received  as
     requested.

     A briefing was given to the FRP Federal Management Group on  seedling/
     branch/tree integration and modeling  activities within the program.

     Staff participated in a review of the EPRI  Responses of Plants to Inte-
     grated Stress (ROPIS) Program.

Project Manager:  A.  Ross Kiester  FTS 420-4636/4600
                                       30

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                  Corvallis Environmental Research Laboratory
                   Project Status Report -- Acid Rain Effects
                                December 31,  1987

Title:  Quality Assurance (QA) Forest Response Project (64)

Objective(s):

     Assure that data produced within the Forest Response Program (FRP),
     examining the effects of acid deposition on forests, are of known  and
     documented quality.  The data will be used for integration of research
     results to answer a series of policy Questions established by EPA's  Office
     of Air and Radiation.

Output Status:

     Annual report to Program Management (02/88).  On schedule.

     Revised data quality objectives document (06/88).  On schedule.

Activities:

     The QA staff continues its routine auditing procedures  within the  FRP  (82
     completed to date).  Audit protocols have been established at the  national
     level to provide consistency across the  Forest Response Project.

     National documentation has been revised  to reflect growing experience  in
     quality assurance procedures.  This documentation includes revised QA
     Methods Manuals and the revised QA Implementation Plan.  The QA  staff  also
     continues to meet the many reporting requirements of the quality assurance
     project.

     Results of Forest Response Program comparability studies for soil  and
     foliar/sample tissue nutrient analyses are coming in and will be analyzed
     this quarter.  The exposure eouipment performance evaluation audits  will
     conducted in FY88 by the FRP QA staff; 13 audits completed in 1987,
     several of which detected some problems  with equipment.

     Work continues on the four QA initiatives:  wet vs. dry soil analyses;
     error sources in tree diameter measurements; testing cuticular wax data
     quality objectives (DQOs); and testing the effects of pesticides on
     physiological measurements.  Results of  the first two will be presented  at
     the FRP annual meeting.

     The QA staff is implementing a QA tracking for project  measurement vari-
     ables and techniques.  Information will  be used to organize sample
     exchanges, audits and audit samples, and comparability studies.  The
     information ultimately goes into the FRP national data  base.
                                       31

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Findings:

     FRP audits continue to show high levels of scientific  Quality,  good
     documentation of results, and improving cooperation between  similar
     projects.  The continuing testing of methods of DQOs indicate that some
     revision is necessary, which we are carrying out.   Initial results of  soil
     sample exchange (interlaboratory comparisons)  show some significant  differ-
     ences between participating laboratories.   These differences seem to be
     related most directly to variability in procedures and the error component
     used in the comparison.  We will continue  our  initial  analyses  and testing
     of these differences.

Project Manager:  Jack Winjum  FTS 420-4324/4600
                                       32

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                  Corvallis Environmental  Research Laboratory
                   Project Status Report -- Acid  Rain  Effects
                               December 31, 1987

Title:  Effects of Atmospheric Deposition  on the  Condition  of Forests  in  the
        Western U.S. (65)

Objective(s):

     Evaluate the current and future responses of western coniferous forests to
     atmospheric deposition.   The Western  Conifers Research Cooperative efforts
     toward this goal are part of the national Forest  Response Program.

Output Status:

     Report on development of passive ozone monitor:   delivery of  prototype
     (12/87).   Completed.

     Annual Report for the Western Conifers Cooperative (04/88).   On schedule.

Activities:

     Workshop, "Response of Trees to Air Pollution:  The Role of Branch
     Studies"  was conducted.

     An interagency agreement funding package with the Department  of Energy
     (Lawrence Livermore National Laboratory:   Comparison of the Response of
     Mature Branches and Seedlings of Pinus ponderosa  to Atmospheric Pollution)
     was transmitted to Headquarters.

Project Manager:  Richard K.  Olson  FTS 420-4355/4600
                                       33

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34

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                  Corvallis Environmental  Research Laboratory
                   Project Status Report -- Acid Rain Effects
                               December 31, 1987
Title:  Effects of Atmospheric Deposition  on Spruce-Fir Forests (66)
Objective(s):
     Determine the effects of acidic deposition and associated air pollutants
     on spruce-fir forests.  Includes investigations of the current reports  of
     spruce decline at high elevations and investigations of potential  mechan-
     isms of pollutant effect.
Output Status:
     Annual Report for the Spruce-Fir Research Cooperative (04/88).  On
     schedule.
Activities:
     Conducted a symposium for American and German scientists to explore the
     state of knowledge regarding spruce-fir forests and to identify  coopera-
     tive German/U.S.  projects.
Project Manager:  Roger L. Blair  FTS 420-4662/4600
                                       35

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36

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                  Corvallis Environmental  Research Laboratory
                   Project Status Report -- Acid Rain Effects
                               December 31, 1987
Title:  Effects of Acid Deposition on Southern Commercial  Forests (67)
Objective(s):
     Determine the effects of acidic deposition and associated air  pollutants
     on southern commercial forests.  Includes investigations of the current
     reports of growth decline in several  southern pines and investigations of
     potential mechanisms of pollutant effect.
Output Status:
     Annual report for the Southern Commercial Forest Research Cooperative
     (04/88).   On schedule.
     Report on climate, soils, forest distribution, and air quality data  for
     the southern U.S. (05/88).  On schedule.
Activities:
     Conducted a meeting of all cooperative principal investigators to  discuss
     future research needs.  Pis reported  on individual projects.
     Met with investigtors from the field  sites to resolve statistical  issues.
Project Manager:  Roger L. Blair  FTS 420-4662/4600
                                       37

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38

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                  Corvallis Environmental  Research Laboratory
                      Project Status Report -- Pesticides
                               December 31, 1987

Title:  Bioassay Development and GEM Studies (36)

Objective(s):

     Develop rationale and procedures for  evaluating  survival,  reproduction,
     potential for genetic exchange, fate, effects, and risks associated  with
     release of genetically engineered biological  control  agents.

Output Status:

     Journal article on aerial  dispersal and epiphytic survival  of Pseudomonas
     sringae during a pre-test for the release of genetically engineered
     strains into the environment (10/87).  Complete.

Activities:

     R.Seidler (CERL) and S. Hern (Las Vegas)  gave presentations to Headquarters
     program office personnel on "The Release of  Ice  Minus Recombinant  Bacteria
     at California Test Sites," summarizing ORD experiences with the on-site
     evaluation of the releases.  They discussed  quantitative evaluations of
     bacterial detection and aerosol movement during  the spray  releases.

     R. Seidler presented a seminar on "Release of Recombinant  Bacteria into
     Microcosms and the Field," at New York Unviersity in  November.

     Cooperative agreement research proposals were funded:

          "Novel  Methods for Tracking Agrobacterium radipbacter K84 and
          Plasmid-Borne Genes in Agricultural  Ecosystems"  (Moore,  Oregon  State
          University).

          "Survival and Genetic Stability  of Genetically Engineered Baculo-
          viruses" (Wood, Boyce Thompson Institute for Plant Research).  This
          project will  establish a predictive model for the survival  capacity,
          genetic stability, and potential for gene transfer for genetically
          engineered baculoviruses.

          "Development of Methodology to Evaluate the Effects of Microbial
          Pesticides on Mycorrhizal Symbioses" (Linderman, USDA-ARS, Horticul-
          tural Crops Research Laboratory, Corvallis, Oregon).   This project
          will develop methods to evaluate the impact of natural and genetic-
          ally engineered microbial pesticides on mycorrhizae.

     A preliminary particle dispersion model is being prepared  to  estimate
     bacterial concentrations downwind from a source  area, and  to  compare with
     field observations.
                                       39

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Findings:
     We continue to acquire and develop methods to study fate and  survival  of
     recombinant fungi in microcosms.   A simple method has been  used  to  extract
     DMA from four Basidiomycete fungi (Schizophyllum, Coprinus, Laccaria,  and
     Hebeloma).   This DMA has been digested with restriction  enzymes  and probed
     with the cloned rRNA genes from Coprinus (courtesy of P. Pukkila) to
     determine the usefulness of the method as a tool  for distinguishing the
     four fungi.  The patterns are different.  We plan to continue these
     studies with several strains of the mycorrhizal  fungus Laccaria  collected
     from different geographical regions.  We are also developing  methods to
     transform Laccaria with a cloned Hygromycin B gene (courtesy  of  0.  Yoder)
     so the organism can be grown on a selective medium and also be unambigu-
     ously identified using the Hygromycin B gene as  a probe.

     J. Armstrong and R. Rygiewicz are collaborating  on research using already
     developed molecular biological methods for Aspergillus and  Schizophyllum.
     They are transforming these strains with vectors being used for  genetic
     engineering of fungi and developing methods to study the transformation of
     the mycorrhizal fungus Laccaria laccata.  The availability  of these
     methods will permit us to study the fate, stability, survival, and  effects
     of recombinant fungi as they are developed by industry for  environmental
     release.

Publications:

     Cox, C. S.   1987.  The aerobiological pathway of microorganisms. A
          review.  American Society for Microbiology News, p. 583, October.

     Lindow, S.  E., and 8 others.  Aerial dispersal and eiphytic survival of
          Pseudoroonas syringae during a pre-test for  the release of genetically
          engineered strains into the environment.  Applied and  Environmental
          Microbiology (submitted).

Project Manager:  Ramon J. Seidler  FTS 420-4661
                                       40

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                  Corvallis Environmental Research Laboratory
                      Project Status Report -- Pesticides
                               December 31, 1987

Title:  Field Validation for Hazard Assessment Techniaues (37)

Objective(s):

     Conduct field validation of an Office of Pesticide Programs assessment of
     pesticide hazard to terrestrial nontarget organisms and provide toxicity
     information on nontarget terrestrial organisms in response to requests
     from OPP and the regions.

Output Status:

     None this reporting period.

Activities:

     In near-field studies on the CERL Wildlife Toxicology ponds, the red-
     winged blackbird is being evaluated as a candidate for evaluation of
     chemical effects on passerines in the field.   These birds are vigorous,
     apparently quite sensitive to most chemicals, and appear to be a good
     candidate for nest-box, nest abandonment, and other behavioral studies in
     the field.  Studies with this species will continue early in the spring
     1988.

     Field studies using telemetry are in final planning stages for a spring
     1988 evaluation of the effects of an OP on bobwhite nesting and foraging.
     A significant component of the doppler receiver system would not be ready
     for another year, so we have decided to use other (standard) transmitters.
     The study will, however, still use sophisticated tracking and computer
     graphics techniques to determine the movements of nesting adult hens
     during the foraging periods to determine the  effects of OP on this phase
     of reproduction.

     Potential field protocols using nest boxes for passerines are being
     evaluated in a field situation.  Data analysis and evaluation of Phase I
     is in progress.

     The effects of chemicals on nest attentiveness in valley quail and charac-
     terization of the habitat, nest sites, and "baseline" chemical residues
     are being conducted at a test site on the Wilson Refuge in Corvallis.
     These data will be utilized to provide exposure information for extraopla-
     tion to field environments.

Findings:

     Preliminary nesting studies using local population of red-winged black-
     birds suggest that this species might be a good candidate for nest-box,
     nest abandonment, and other behavioral studies in the field.
                                       41

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     The early phases of the bobwhite telemetry study indicate  that  the test
     area is relatively clean of  prior pesticide use  and  should provide the
     necessary habitat for these  studies.

     Laboratory studies have demonstrated  dose-response characteristics of an
     organophosphate which is repeatable.   Preliminary results  indicate that
     each chemical (or class of chemical)  may have  a  repeatable characteristic
     temporal "profile" of action.

Project Manager:  Bill A. Williams   FTS 420-4679
                                       42

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                  Corvallis Environmental  Research Laboratory
                      Project Status Report -- Pesticides
                               December 31, 1987

Title:  Methods Development and Effects Measurement (38)

Objective(s):

     Develop guidelines and test methods for evaluation of the effects  of
     microbiological pest control agents (MPCAs) in non-target beneficial
     terrestrial species.

Output Status:

     Report on laboratory testing and evaluation of selected MPCAs  on nontarget
     birds (terrestrial) (02/88).  On schedule.

Activities:

     An experiment to evaluate the interim protocol for exposing  bobwhites  to  a
     viral MPCA by intravenous inoculation using Autographa caliform'ca NPV a
     the test pathogen is nearly completed; tissue sample  assays  are complete.

     A literature search has been completed and a report is being written on
     questions, approaches, and methodologies that need to be addressed to
     validate interim protocols for respiratory exposure of avian species to
     MPCAs.  The report will be finished in January and work will start soon
     thereafter.

     Protocol testing of the predatory neuropteran, Chrysoperua carnea, against
     the fungal MPCA, Beauveria bassiana,  is proceeding.

     Protocol testing of the predatory mite, Metasieulus occidental is,  against
     the fungal MPCA, Beauveria bassiana,  is proceeding.

Publications:

     Lighthart, B., D. Sewall, and D. Thomas.  Effect of several  stress factors
          on the susceptibility of the predatory mite, Metasieulus  pccidentalis
          (Acaria: Phytoseiidae), inoculated with the weak bacterial insect
          pathogen, Serratia marcascens.  Journal of Invertebrate Pathology (in
          press).

     Lighthart, B., and D. Sewall.  A fungus, Beauveria bassiana, pathogenic
          for the predatory mite, Metaseiulus pccidentalis (Nesbitt).  Journal
          of Invertebrate Pathology (submitfedTi

     Sewall, D., and B. Lighthart.  Bioassay of a bacterial inoculum in the
          predatory mite, Metaseiulus occidentalis (Acari: Phytoseiidae)
          (submitted).

Project Manager:  Ramon J. Seidler  FTS 420-4661
                                       43

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44

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                  Corvallis Environmental  Research Laboratory
                      Project Status Report -- Pesticides
                               December 31, 1987

Title:  Risk Methodologies for Wildlife Populations (40)

Objective(s):

     Develop environmental risk assessment methodology using  modified  existing
     or newly developed fate, transport, and effects models to  express risk as
     a probability statement with estimates of associated  uncertainty.

Output Status:

     Report on preliminary models to predict consequences  of  animal  body burden
     of xenobiotics (10/87).  Completed.

     Progress report on significant sublethal physiological and behavioral
     endpoints of populations affected by chemicals (10/87).  Completed.

     Report on terrestrial population models for  risk assessment:  a state of
     the art review (02/88).  On schedule.

     Report on terrestrial community models for ecological risk assessment:  a
     state of the art review (02/88).  On  schedule.

Activities:

     A literature review on available wildlife toxicology  models is  complete.
     New models are being developed and tested for wildlife populations.

     Evaluation of the relative importance of inhalation,  dermal,  and  dietary
     uptake routes in avians is proceeding at Battelle Northwest Laboratories.

     Work continues at Montana State University to build a (animal)  terrestrial
     toxicology database using dBASE III incorporating the original  TERRE-TOX
     database.

Findings:

     Toxicity tests based on short vs. long (96 hours or more)  periods have
     been evaluated, and are not directly comparable; the  timescale  of toxic
     impacts varies from chemical to chemical.  A simple means  of  scaling and
     extrapolating experimental data to asymptotic (long-term)  endpoints has
     been developed so that data from different protocols  can be compared, and
     a standard toxicity measure defined.

     Examination of the PHYTOTOX database  has shown that laboratory-to-field
     extrapolation of toxicity in plants may be quite straightforward; the LC50
     does vary, generally by less than two-fold.   However, between species
     differences, even for taxonomically related  species,  are often  enormous.
     This accentuates the need to find methods for interspecies extrapolation.
                                       45

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     Review of the existing literature suggested  that  little  information  is
     currently available in support of modeling efforts  for terrestrial
     wildlife populations.  Additional modeling approaches are  being  considered,

     Review of the existing literature revealed that  little information is
     available about the importance of routes of  exposure for terrestrial
     wlidlife.  Tests continue to provide  information  about the relative
     importance of inhalation as a route of exposure  in  birds.

Publications:

     Shirazi, M.,  and L. Lowrie.  Comparative toxicity based  on similar
          asymptotic endpoints.  Archives  £f Environmental Contamination  and
          Toxicology (in press).

Project Manager:  Bill A.  Williams  FTS 420-4679
                                       46

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                  Corvallis Environmental Research Laboratory
                   Project Status Report -- Toxic Substances
                               December 31, 1987

Title:  Terrestrial Toxicology (30.1)

Objective(s):

     Evaluate, improve, and validate bioassay methods to assess  the  effects  of
     toxic chemicals on plants and animals.

Output Status:

     Report evaluating existing mathematical models of atmospheric deposition
     and exchange (02/88).  Completed (10/87).

     Journal article concerning species differences in uptake and translocation
     of organic chemicals (01/88).  On schedule.

     Journal article describing the degree of variation in  plant responses to
     chemical insult when subjected to water stress (02/88).   On schedule.

Activities:

     The metabolism of different classes of industrial waste  compounds by
     plants continues, directed by J. Fletcher,  at CERL on  a  cooperative
     agreement with University of Oklahoma.

     Plant uptake studies are in progress to determine how  the concentration of
     a pollutant'influences the movement of a chemical into and  through a
     plant.  The importance of species differences to these processes  is  being
     examined.  A number of the species being examined are  woody perennials.
     This is the first time any attempt has been  made to study the root uptake
     of industrial waste compounds by woody perennials that are  recommended  by
     EPA for use in the revegetation of toxic waste sites.

     The root uptake model is being modifed to operate more efficiently.  These
     modifications will facilitate its use in the general framework  of the risk
     assessment under under development by EPA.   The root model  is being
     subjected to sensitivity analysis and steps  are being  taken to  link  the
     root uptake model with a soils model.

     The influence of water stress on plant response to chemical insult contin-
     ues to be examined.

Findings:

     Cultured plant cells have been shown to metabolize environmentally stable
     2,2',4,4'-PCB at a rate of 4.6 pmoles/n/g dry wt.  Considering  the large
     biomass and spatial distribution of plants,  the metabolism  of PCBs by
     plants could be formidable in certain environmental settings.
                                       47

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     Data collected on the uptake, biotransformation,  and  volatilization  of
     l^C-nitrobenzene by seven plant species are being analyzed.   Preliminary
     evaluation of these data indicate that in all  cases a substantial  amount
     of nitrobenzene taken up by the different species was volatilized  into the
     atmosphere from leaf surfaces.  The 146 recovered from the  plants  was
     primarily in the roots and most of this had been  converted  from  the
     nonpolar parent compound to polar metabolites  and insoluble constituents.

     Simultaneous exposure of plants to water stress and sublethal  doses  of a
     herbicide indicate that the combination of these  stresses has  a  detri-
     mental influence on flowering which is not brought on by either  stress
     condition separately.

Publications:

     Fletcher, J. S., A. Groeger, Joel C.  McCrady,  and J.  C.  Me  Farlane.   1987.
          Polychlorobiphenyl (PCB) metabolism by plant cells. Biotechnology
          Letters 9:817-821.

     Link, S. L., R. J. Fellows, D. A. Culatdo, J.  G.  Droppo, and P.  Van  Voris.
          1987.  Estimation of aerial deposition and foliar uptake  of xeno-
          biotics:  assessment of current models.  Battelle Pacific Northwest
          Laboratories, Richland, Washington 99352.   PNL-6173/UC-11.

Project Manager:   Bill  A. Williams  FTS 420-4679
                                       48

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                  Corvallis Environmental  Research  Laboratory
                   Project Status. Report  —  Toxic Substances
                               December 31,  1987

Title:  Terrestrial  Toxicology (30.2)

Objective(s) :

     Improve  and validate methods to assess  the effects of toxic chemicals on
     plant, avian, and mammalian species.

Output Status:

     Report on the effects of chemical on  egg  shell parameters in avians
     (10/88).  On schedule.

     Journal  article on the mechanism  of transfer of chemicals to eggs and
     offspring in avians (10/88).  On  schedule.

Activities:

     A journal article summarizing the investigations of uptake and distribu-
     tion of HCB in bobwhite egg and embryos is in  preparation.

     Research on the effects of dicofol , an  organochloride, on egg quality in
     mallards is proceeding on schedule.   Data from the study will be used to
     evaluate the impact of a DDE-like compound on  egg shell quality.

     Studies  on the impact of nutritional  status on the ability to detect
     chemicals in feed are continuing. A  technique has been developed to
     precisely measure and record food consumption  in birds.

     A technique to evaluate the relative  toxicity  of an analogous alcohol
     series (methanol  to pentanol) is  being  tested. Preliminary tests have
     been conducted to determine appropriate routes, volumes, and timing of
     alcohol  toxicity tests.  These data  are being  generated for potential use
     in Quantitative Structure Activity Relationship techniques.

Findings:

     Detection of dicofol in the gas chromatograph  is difficult due to the
     breakdown of parent chemical into several  other forms.  Standard GC method-
     ologies  are being utilized for this chemical and additional methods are
     being evaluated.

     Early results indicate that the toxicity  alcohols may be related to the
     carbon chain length (e.g., each alcohol in the series has an additional
     carbon),  Further work is needed, however, to  relate these results to QSAR
     principles.
                                       49

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Publications:

     Bennett, R.  S.   Effects of the number  of  relative  proportion  of pesticide-
          treated and untreated food choices on  dietary discrimination by
          northern bobwhite.  Archives £f Environmenal  Contamination and
          Toxicology (in pressT

     Bennett, R.  S., R.  K.  Ringer,  R.  Bentley, and  D. VI.  Schmedding.  Effects
          of age  and duration of exposure on mortality  in avian  dietary LC50
          tests.   Archives  of Environmental Contamination and  Toxicology (in
          press).

Project Manager:   Bill A. Williams   FTS  420-4679
                                       50

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                  Corvallis Environmental Research Laboratory
                   Project Status Report -- Toxic Substances
                               December 31, 1987

Title:  Bioenvironmental Aspects of Biotechnology (31)

Objective(s):

     Develop data bases and a series of research-based  protocols to provide
     methods for evaluating risks from the release of genetically engineered
     microbes (GEMs) into terrestrial environments.

Output Status:

     Journal article on DNA probe method for the detection of specific micro-
     organisms in the soil bacterial community (12/87).  Complete.

Activities:

     Presented an invited seminar at Rutgers University entitled, "Assessing
     the Risks of Environmental Releases of Recombinant Microbes Through
     Research" (R. Seidler).

     Presented the keynote address at the 1987 Conference of  Biotechnology for
     the Preservation of Environmental Quality in Montreal in October.  Seminar
     title was "Scientific Issues Involving the Release of Genetically Engin-
     eered Microbes into the Environment" (R.  Seidler).

     Presented an invited seminar at the Fifth International  Symposium on Rapid
     Methods and Automation in Microbiology and Immunology, in Florence, Italy.
     Seminar title was "Detection of Genetically Altered Bacteria Following
     Release to the Environment" (R. Seidler).

     Cooperative agreement research proposals were funded:

          "Measurement of Persistence and Effects on Microbial Diversity of
          Pesticide-Degrading Microorganisms in the Soil," University of
          Louisville.  The project will determine the persistence and effects
          of specific GEMs with and without chemical disturbances from pesti-
          cide additions to the ecosystem.

          "Towards Quantification of the Ability of GEMs to Invade Soil
          Habitats and Their Effects on Microbial Community Structure."
          Tiedje, Michigan State University.  The project will determine under
          what conditions invading organisms can become established in soil and
          what effect invaders may have on the established organisms in the
          habitat.

          "A Colorimetric Assay for Use in Detecting, Tracking, and Enumerating
          Genetically Engineered Microorganisms in Terrestrial Environments."
          Kirksville College of Osteopathic Medicine.
                                       51

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     Studies continue on GEM Pseudomonas  putida strains capable of 2,4-dichloro-
     phenoxyacetic acid (2,4-DT  degradation.  They will be tested in microcosm
     systems for their competitiveness  with wild type strains and their ability
     to decrease 2,4-D in the soil  environment will be determined.
Findings:
     We continue to study survival  of Entobacter cloacae (pBR322) on the leaves
     of bean plants and  in soil  contained  in  large microcosm chambers.  Environ-
     mental  sensors hourly monitor  the relative humidity, air temperature, leaf
     wetness, soil  temperature,  and soil moisture.  Plants and soil are sampled
     for up to 21 days,  processed,  and plated on a selective medium.  To
     determine replication with  these chambers, we repeated the experimental
     design three times  under  the  same chamber environments.  The survival
     curve for bacteria  in soil  and on leaves compared well across experiments.
     Approximately 99% of the  bacteria sprayed in the microcosm could not be
     recovered after 5 days.   From  day 5 to day 21, there was almost no further
     decrease in the bacterial populations.   The survival curves from these
     experiments are being analyzed by a statistician to identify the sources
     of variance within  the experimental design.  In two additional experi-
     ments, a humidifier was  programmed to increase the relative humidity of
     one chamber to 95%  during the  6-hour  night period, while the second
     chamber was kept at 40 to 50%  relative humidity.  The higher relative
     humidity increased  the soil moisture  in  that chamber.  In these experi-
     ments, the £. cloacae (pBR322) on leaves showed similar death curves in
     both low and high humidity  environments.  However, these bacteria survived
     better in the soil  with  a higher moisture content as compared to those in
     the drier soil .

Publications:

     Holben, W. E., J. H. Jansson,  B. K. Chelm, and and J. M. Tiedje.  DNA
          probe method for the detection of specific microorganisms in the soil
          bacterial community.  Applied and Environmental Microbiology (sub-
          mitted).

     Knudsen, G. R., M.  V. Walter,  L. A. Porteous, V. J. Prince, J. L.
          Armstrong, and R. J. Seidler. 1988.  Conjugative plasmid transfer in
          the rhizosphere and  phyllosphere:   a predictive model .  Applied and
          Environmental  Microbiology (in press).

Project Manager:  Ramon  J. Seidler   FTS 420-4661
                                       52

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                  Corvallis Environmental  Research  Laboratory
                   Project Status  Report  — Toxic Substances
                               December 31, 1987

Title:  Comparative Terrestrial  Toxicology (34)

Objective(s):

     Determine when data from surrogate species can be used to extrapolate
     toxicologic effects to other  species.

Output Status:

     None scheduled this reporting period.

Activities:

     Development of immune function tests for mallards and bobwhite continue.
     A collaborative effort with staff from the Oregon State University College
     of Veterinary Medicine to define  avian serum chemistry profiles continues.
     Baseline data for blood chemistry of mallards  and bobwhite has been
     completed.  A Tb test for avians  has been successfully tested.  Work is
     progressing on standardizing  the  lymphocyte migration and carbon clearance
     assays.

     An in vitro macrophage colony has been developed for use in immunologic
     screening tests for mallards.  This  colony is  needed to support future
     immunologic function tests for avians.  Experiments using the colony are
     planned for early spring.

     Lymphocyte migration tests are currently under development and evaluation.
     Although several aspects of this  test are still incomplete, considerable
     progress has been made.

     Gamma glutamyl transpeptidase (gGT), alkaline  phosphatase (ALP), lactate
     dehydrogenase (LD-L), aspartate aminotransferase (AST), alanine amino-
     transferase (ALT), amylase, albumin/globulin ratio (A/G), glucose, and
     cholinesterase (ACHE) tests are routinely conducted by the wildlife team.
     These screening panels are being  evaluated in  bobwhite and mallard.

Project Manager:  Bill A. Williams  FTS 420-4679
                                       53

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54

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                  Corvallis Environmental  Research  Laboratory
                   Project Status  Report  —  Toxic Substances
                               December 31,  1987

Title:  Bioaccumulation and Toxic  Effects of Sediment  (35)

Objective(s):

     Develop and validate methods  to  define  adverse effects of toxic substances
     in sediments on freshwater organisms.

Output Status:

     Effects of sample storage on  tpxicity of sediments contaminated with
     organic compounds (10/88). On schedule.

     Journal article on comparative uptake of hexachlorobenzene by  fathead
     minnows, Hyalella, and Lumbrlculus  from water  and sediment (10/87).
     Completed.

     Journal article on survival ,  reproduction, and bioconcentration in inverte-
     brates exposed to hexachlorobenzene  (10/87).   Completed.

     Journal article on effects of suspended particulates and sediment on the
     uptake of hexachlorobenzene by fathead  minnows and macroinvertebrates
     (07/88).  On schedule.

     Report to EPA Region 10:   Toxicity of lower Columbia River sediments to
     Hyalella and Daphnia (11/87),  Completed.

     Report to EPA Office of Toxic Substances: Acute  and chronic Daphnia magna
     freshwater sediment toxicity  tests  (07/88).  On schedule.

     Report to EPA Office of Toxic Substances: Technical support document  for
     acute and chronic Daphnia magna  freshwater sediment toxicity test (07/88).
     On schedule.

Activities:

     Work was initiated on testing the effects of sediment storage  (freezing
     vs. 4°C)  on toxicity of DDT and  endrin  in the  sediments to Hyalella
     azteca.  Work is continuing with Daphnia sediment bioassays for EPA Region
     X.  Development and validation of chronic Daphnia sediment procedures  of
     EPA Office of Toxic Substances is continuing.

     Chronic Daphnia and fathead minnow  tests are being conducted on Superfund
     site samples from the McClaren site  in  Montana and the Douglassville site
     in Pennsylvania.  Verification of the chronic  Daphnia test with sediment
     and Superfund samples is  continuing.
                                       55

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Findings:
     The 7-day Daphnia  magna  chronic test  for analyzing sediment samples for
     toxicity produces  good results and is recommended as a standard procedure.
     The test starts with  6-day-old animals at 22°C and uses adult survival  and
     production of 2 broods of young as effect parameters.  The procedure has
     been verified with sediment  and Superfund samples.

Publications:

     Nebeker, A. V., W. L. Griffis, 0. M. Wise, E. Hopkins, and J. A. Barbitta.
          Survival, reproduction, and bioconcentration in invertebrates and
          fish exposed  to  hexachlorobenzene (submitted).

     Schuytema, G. S.,  D.  F.  Krawczyk, W. L. Griffis, A. V. Nebeker, M. L.
          Robideaux, B. J. Brownawell, and J. C. Westall.  Comparative uptake
          of hexachlorobenzene by fathead minnows, Myall ell a, and Lumbriculus
          from water and sediment (submitted).

Project Manager:  Alan  V.  Nebeker FTS 420-4875
                                      56

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                  Corvallis Environmental  Research Laboratory
                   Project Status  Report  -- Toxic Substances
                               December 31, 1987

Title:  Develop Methodologies for  Soil/Plant Communities (41)

Objective(s):

     Identify critical  ecosystems  and  their components and processes which have
     social  and/or ecological value.

     Improve risk methods for toxic chemicals  in soil/plant communities and
     provide a mathematical model  which will allow prediction of effects of
     xenobiotic chemicals in terrestrial  plants.

Output Status:

     Report  on the review and evaluation  of the effects of xenobiotic chemicals
     on microorganisms in soil  (12/87).   Delayed to 01/88.

     Report  on selection of critical terrestrial systems (12/87).  Completed.

     Convert PHYTOTOX to IBM dBASE III format  (10/87).  Completed.

     Prepare User's Manual  for dBASE III  version of PHYTOTOX (12/87).
     Completed.

     Journal article on chemicals  and  mycorrhizae on  root permeability and
     cation  fluxes (12/87).  Delayed;  additional data being added.

Activities:

     The information and discussions synthesized from interviews, workshops,
     and literature evaluations on critical systems has been analyzed and
     summarized in a report submitted  to  EPA.

     The microcomputer version of  PHYTOTOX, along with the newly completed
     User's  Manual, has been distributed  to selected  parties in EPA for
     testing.

     Additional mycorrhizal studies are being  conducted to confirm some prelim-
     inary results which were not  consistent with currently held views on this
     topic.

Findings:

     The draft report on "Effects  of Chemicals on Soil Biota" indicates that
     there are numerous contradictions on this topic  in the published litera-
     ture.

     The microcomputer version of  PHYTOTOX has greatly expanded the number of
     persons who can now gain access to it, and therefore it is being effec-
     tively used for the first time to resolve questions on a day-to-day basis.


                                       57

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     A final analysis of data from the mycorrhizae study showed plant species
     differences which were not anticipated.  Additional experiments have been
     initiated to evaluate these findings.

Project Manager:  Bill A. Williams  FTS 420-4679
                                       58

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                  Corvallis Environmental  Research  Laboratory
                   Project Status Report  —  Toxic Substances
                               December 31,  1987

Title:  Validated Hazard Assessment Using  Microcosms  and  Field  Sites  (42)

Objective(s):

     Determine the ability of toxicological  testing methods to  predict an
     effect on field populations.

Output Status:

     Journal article on a continuous-flow method  for  measuring  the effect of
     chemicals on soil  nitrification (12/87).   Completed.

     Journal article on the effects of selected chemicals on microbial popula-
     tions (01/88).  On schedule.

Activities:

     An investigation is underway to evaluate  the effects of body size and age
     on sensitivity to chemicals in avian dietary tests.  This  study  will
     provide an evaluation of the impact  of  age and size  on the results of 1059
     protocols for bobwhite quail.

     A computerized metabolic and respiratory  system  has  been tested  which
     measures oxygen consumption and C02  production simultaneously in up to
     five birds or small mammals,,  All  computer software  for test control and
     data recording is complete.  This system  will  be used to evaluate meta-
     bolic and thermoregulatory measurements in conjunction with toxicity
     tests.

     Work is continuing on the development of  an automated system to  measure
     respiration in soil culture.  This will be used  to measure the effect of
     toxic chemicals on random metabolism of soil populations over small
     increments of time where responses are  often missed  in traditional culture
     techniques.

     The continuous-flow culture procedure 1s  being modified to evaluate the
     effect of chemicals on soil nitrification.

Project Manager:  Bill  A. Williams  FTS 420-4679
                                       59

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60

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                  Corvallis Environmental  Research  Laboratory
                     Project Status  Report  --  Water Quality
                               December  31, 1987

Title:  Freshwater Sediment Quality  Criteria for Toxic Pollutants (12.1)

Objective(s):

     Determine the biological  effects  of sediment contaminants, develop methods
     of assessing biological effects,  and  determine whether sediment criteria
     are warranted.

Output Status:

     Journal article on effect of three  sediment organic carbon levels on
     survival  of Hyalella azteca exposed to DDT in  sediment (06/88).  On
     schedule.

     Journal article on survival  and reproduction of Daphnia, Hyalella, and
     Gammarus  in low dissolved oxygen  (10/88). On  schedule.

     Journal article on effect of low  dissolved oxygen on the life stages of
     the caddisfly, Clistoronia magnifica  (Limnephilidae) (10/88).  On schedule,

     Report on effects of endrin-spiked  sediment at three organic concentra-
     tions on  Hyalella azteca survival  (06/88).  On schedule.

     Journal article on comparison of  static,  elutriate, and recirculating
     sediment  bioassay procedures (07/88).   On schedule.

Activities:

     Data analysis and preparation for Science Advisory Board meetings with
     Duluth-ERL is continuing with results  from DDT and endrin sediment assays.

Findings:

     It is apparent that the response  of Hyalella azteca to sediment spiked
     with DDT and sediment spiked with endnn  is different.  The two chemicals,
     though related as chlorinated pesticides, have different solubilities,
     sorption  rates in sediment, and different toxicity as related to percent
     organic content of spiked sediment.

Project Manager:  Alan V. Nebeker FTS 420-4875
                                       61

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62

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                  Corvallis Environmental  Research  Laboratory
                     Project Status  Report —  Water Quality
                               December  31, 1987

Title:  Lake Restoration (13)

Objective(s):
     Provide EPA's Office of Water with  a  comprehensive Lake Restoration
     Guidance  Manual  (LRGM) that incorporates  all aspects of lake management
     and restoration  including  types of  techniques, cost-effectiveness,
     regional  prioritization of projects,  and  an assessment of efficiency of
     treatment techniques.  Work will  include  technical assistance to States
     and Regions concerning application  of the LRGM to the Clean Lakes Imple-
     mentation Program conducted at  the  Region/State level.

Output Status:

     Lake Restoration Guidance  Manual  (04/88). On  schedule.

Activities:

     The final draft  of the LRGM has been  delivered to authors for comment
     following incorporation of reviewer and workshop participant comments
     received  at the  annual North American Lake Management Society conference
     in November.  The project  leader, two authors, and the NALMS editor met in
     December  to finalize the document.  It appears the LRGM will be delivered
     ahead of  schedule.

     The scope of this project  was amended at  the request of EPA's Office of
     Water to  include plans for technical  assistance to the Regions and States.
     This assistance  includes development  of workshop brochures and materials
     based on  the LRGM, the conduct  of workshops in three locations, the
     critical  analysis and documentation of the suitability of current Clean
     Lakes data bases to assess longevity  of various lake treatment techniques,
     and the development of a long-term  monitoring  plan to assess success and
     longevity of effectiveness of future  Clean Lakes projects.

Project Manager:  James C. McCarty   FTS  420-4601
                                       63

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                  Corvallis Environmental  Research  Laboratory
                     Project Status  Report —  Water Quality
                               December  31, 1987

Title:  Wetlands Research on Mitigation  and Cumulative  Effects of Loss  (14)

Objective(s):

     Implement research on cumulative impact assessment and mitigation  to:  (1)
     assess the effects of cumulative wetland  losses  on wetland  functions in
     the landscape; (2) improve methods  of creating,  restoring and enhancing
     wetlands and wetland functions;  (3)  provide guidance  for the design of
     effective mitigation projects;  and  (4) provide information  through the
     publication of "Community Profiles"  and other  wetlands information.

Output Status:

     Report on conceptual  framework  for  cumulative  impact  assessment  (12/87).
     Completed.

     Report of National Wetland Symposium:  Mitigation of  Impacts and Losses
     (11/87).  Completed.

     Production of the Proceedings from  the National  Wetland Technical
     Council's symposium on prairie  wetlands (02/88).  On  schedule.

     Provisional guidance document based  on literature  synthesis (06/88).  On
     schedule.

     Report on mitigation projects in EPA Regions  IX  and X (09/88).  On
     schedule.

Activities:

     The program was peer reviewed and evaluated  for  progress and FY88  operat-
     ing plans.  The panel was generally supportive and suggested improvements
     that will be adopted.

     Final quality assurance checks  were made  of the  data  bases  of 404  permits
     of freshwater mitigation projects in Louisiana and Mississippi, and of
     projects in Alabama and Washington;  initiated  trends  analysis of these
     data bases and continued that for the Oregon data  base; continued  program-
     ming the data management system to  increase  user friendliness and  to
     compile information for analysis.

     Data entry programs for the Oregon  field  study are completed; data entry
     and concurrent quality assurance checks are  progressing; completed
     analysis of water samples for heavy metals, QA/QC  checks confirm that
     quality standards were met; site selection continues  for pilot study in
     Florida to test methdos for evaluating created and restored freshwater
     emergent wetlands and adapting  the  method to  forested wetlands; a  draft
     proposal for a similar study in New England was  reviewed, this study will
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     be done in cooperation with Region I;  revision of the documentation of a
     method for evaluating created and  restored  freshwater emergent wetlands
     and the supporting quality assurance protocol continues.

     Review of the manuscripts for the  Literature  Synthesis has been completed
     and editorial review is in progress; the  draft Overview and Research Needs
     was received from representatives  of the  National Wetland Technical
     Council and circulated for comment.
Findings:
     Preliminary analysis of the 404  permit  data  bases have  identified some
     regional patterns in permitting.  For Oregon and Washington, only permits
     that required compensation in the form  of creation or restoration were
     examined.  In Oregon, impacts on 11  wetland  types were  permitted; four
     types comprise 77% of the number of  wetlands impacted.   In Washington,
     impacts on 23 wetland types have been permitted; four types comprise 69%
     of the number of wetlands impacted.  When all  the permits issued involving
     freshwater wetlands in Louisiana, Mississippi, and Arkansas were examined,
     a different pattern emerged.  Twelve wetland types were impacted; 81% of
     the number of wetlands impacted  were of one  type, palustrine forested
     wetlands (bottomland hardwoods).  The data base from Louisiana, Mississippi,
     and Alabama shows that over half of  the permits issued  did not require
     compensation in the form of wetland  creation and restoration.  The area of
     wetlands impacted was 30,095 acres,  while requirments for creation or
     restoration to compensate for losses was 3,481 acres.

     A workshop sponsored by the Wetlands Research  Program to develop a frame-
     work for cumulative impacts research discussed the prospects for develop-
     ing methods to assess the potential  cumulative impacts  of wetland loss on
     the major functions of systems of wetlands and proposed a research
     strategy.  The primary conclusion to be drawn  from the  papers and the
     workshop is that a sound scientific  basis for  regulation will not result
     from acquiring more information  on more variables.  It  will come from
     recognition that a shift to larger temporal, spatial, and organizational
     scales is needed.  The workshop  proceedings  proposes alternative
     approaches.  Participants agreed that cumulative impacts could not be
     managed effectively when Section 404 permit  applications continue to
     evaluated on a case-by-case basis without reference to  their landscape
     context.

Publications:

     Abbruzzese, Brook, Anastasia B.  Allen,  Sandra  Henderson, and Mary E.
          Kentula.  Selecting sites for comparison  with created wetlands.  In:
          The Proceedings of Symposium '87 — Wetlands/Peatlands.  Edmonton,
          Alberta, Canada, 1987 (in press).

     Bedford, Barbara L., and Eric M. Preston, eds.  Evaluating cumulative
          effects on landscape systems of wetlands. 14 articles submitted to
          Environmental Management for publication  as a special issue.

Project Manager:  Eric M. Preston  FTS 420-4666


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                  Corvallis Environmental  Research  Laboratory
                     Project Status Report —  Water Quality
                               December  31, 1987
Title:  Regional  Integration Project (15)
Objective!s):
     Develop assessment procedures for determining  biological Integrity in
     freshwater systems.
     Determine regional patterns of stream ecosystem characteristics.
     Provide methods and technical assistance  for assessing attainable uses.
Output Status:
     Report on regional modifications of Karr's  Index of Biotic  Integrity
     (10/87).  Completed.
     Report on the regional  assessment of attainable trophic state of lakes
     (11/87).  Completed.
     Ecoregion maps for the remaining five regions  of the U.S. (11/87).
     Completed.
     Preliminary protocol for rapid bioassessment of fish communities.
     Completed.
     Workshop to develop recommendations for ambient biocriteria  for fish and
     macroinvertebrate communities.  Completed.
     Report on recommendations arising from national  biocriteria  workshop
     (04/88).
     Guidance paper on regional  integration rationale with examples (08/88).
Activities:
     Completed regional integration project draft research plan.
     Briefed EPA Administrator, Regional Water Division  Directors and Office of
     Water Administrators, Region VIII Division  Directors and Assistant
     Directors, and Science Advisory Board on  the ecoregion approach.
     Presented paper on attainable lake  trophic  state at North American Lake
     Management Society meeting.
     Chaired and presented paper on use  of ecoregions to develop  biocriteria at
     national biocriteria workshop.
Findings:
     Developed and tested in the Midwest,  the  IBI was adapted for use in
     western Oregon, northeastern Colorado, New  England, Appalachia, and
     northern California.  The concept was extended to Louisiana  estuaries.
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     Because of low species  richness, IBI metrics were replaced, deleted, or
     added.  Modifications  followed the original IBI concept and its theoret-
     ical  underpinnings.  The  IBI holds promise for direct biological  monitor-
     ing, and several  states have incorporated it in their monitoring and
     standards programs.  The  IBI thus serves as a quantitative biological  goal
     for water resource management (Miller et al.).

     A map of summer total  phosphorus in lakes was compiled for the Upper
     Midwest to clarify regional patterns in attainable lake trophic state.
     The maps were compiled  using patterns of total  phosphorus data and associ-
     ations between these data  and geographic characteristics, such as physio-
     graphy, land  use, geology, and soil.  Regions depicted on the map repre-
     sent areas of similarity  in phosphorus concentrations in lakes.  The map
     provides a framework for determining representative lake conditions and
     realistically attainable  phosphorus levels within each region (Omernik et
     aK).                                                                ~~

Publications:

     Heiskary, S.  A.,  C.  B.  Wilson, and D. P. Larsen.  1987.  Analysis of
          regional patterns  in  lake water quality:  using ecoregions for lake
          management in Minnesota.   Lake and Reservoir Management 3:337-334

     Hughes, R. M., and J.  R. Gammon.  1987.  Longitudinal changes in fish
          assemblages  and water quality in the Willamette River, Oregon.
          Transactions of the American Fisheries Society 115:196-209.

     Miller, D. L., and 13  others.  Regional applications of an index of biotic
          integrity for use  in  water resource management.  Fisheries (sub-
          mitted) .

     Omernik, J. M., C. M.  Rohm, S. E. Clarke, and D. P. Larsen.  Summer total
          phosphorus in lakes:  a map of Minnesota, Wisconsin, and Michigan.
          Environmental Management (submitted).

     Omernik, J. M., and  A.  L.  Gallant.  1987.  Ecoregions of the South Central
          States.   Map (1:2,500,000).  EPA/600/D-87/315.  U.S. Environmental
          Protection Agency, Corvallis, Oregon.

     Omernik, J. M., and  A.  L.  Gallant.  1987.  Ecoregions of the West Central
          States.   Map (1:2,500,000).  EPA/600/D-87/317.  U.S. Environmental
          Protection Agency, Corvallis, Oregon.

     Omernik, J. M.  1987.   Ecoregions of the Northeast States.  Map
          (1:2,500,000).  EPA/600/D-87/313.  U.S. Environmental Protection
          Agency,  Corvallis, Oregon.

     Omernik, J. M., and  A.  L.  Gallant.  1987.  Ecoregions of the Southwest
          States.   Map (1:2,500,000).  EPA/600/D-87/316.  U.S. Environmental
          Protection Agency, Corvallis, Oregon.

     Omernik, J. M.  1987.   Ecoregions of the Southeast States.. Map
          (1:2,500,000).  EPA/600/D-87/315.  U.S. Environmental Protection
          Agency,  Corvallis, Oregon.

Project Manager:  Robert  M.  Hughes  FTS 420-4666/4600

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                  Corvallis Environmental  Research  Laboratory
                     Project Status  Report --  Water Quality
                               December  31, 1987

Title:  Water Quality Criteria for Terrestrial  Wildlife  (17)

Objective(s):

    Provide EPA with information on  the  adequacy of existing water quality
    criteria to protect terrestrial  wildlife,  and provide information to revise
    criteria where these are inadequate.

Output Status:

    Internal report on significant levels  of chemicals found in bodies of water
    utilized by waterfowl and small  mammals (11/88).  On schedule.

    Internal report on pollutants considered to pose  the greatest threat to
    wildlife when existing WQC are met  (12/88). On schedule.

Activities:

    Review of the WQC documents has  begun.  Several WQC  pollutants identified
    have the potential to bioaccumulate  in fish and other elements of the food
    chain.  Research to identify chemicals with the greatest potential for
    accumulation in piscivorous birds and  mammals is  underway.

    A study to determine the effect  of  selenium on  waterfowl in outdoor ponds
    has begun.  This is a cooperative effort between  investigators at the
    University of Wisconsin, Madison, the  Duluth EPA  laboratory, and the
    Wildlife Toxicology Research Group  at  Corvallis.

    Preliminary work has started to  evaluate WQC pollutants which have the
    potential  to bioaccumulate in food  sources for  birds and small mammals.
    In-house feeding tests planned to evaluate the  toxic effects of polluants
    when water contains levels appropriate to  those found when WQC are met.

Findings:

    The toxic, oncogenic, and teratogenic  effects of  high levels of selenium on
    waterfowl  have been documented.   The levels of  selenium and the specific
    analogs necessary to produce these  effects have not been well documented.

Project Manager:  Bill A. Williams   FTS  420-4679
                                       69

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                  Corvallis Environmental  Research  Laboratory
          Project Status Report —  Global  Climate Change/Photobiology
                               September  30,  1987

Title:  Ecological  Effects of Stratospheric Modification  (44)

Objective(s):

     Develop information and data base  sufficient for  understanding the
     possible environmental effects of  enhanced  radiation resulting from
     stratospheric  ozone depletion  due  to chlorofluorocarbon emissions to the
     atmosphere.

Output Status:

     Journal article on UV-B effects on tree  seedlings (09/88).  On schedule.

     Report on indirect effects of  UV-B radiation on a commercial  fishery
     (10/88).  On schedule.

     Report on selected UV-B effects on wetland  rice (09/89).  On  schedule.

Activities:

     The Director of Office of Air  Quality Planning and Standards  was briefed
     on the ERL-Corvallis'  Stratospheric  Ozone Project.

Findings:

     Research supported by the Corvallis  Laboratory resulted in a manuscript
     evaluating the possible risks  and  uncertainties concerning stratospheric
     ozone depletion and its impact on  plants.   The manuscript addresses (1)
     the risk to crop yield resulting from both  direct and  indirect effects of
     enhanced solar UV-B radiation, (2) the uncertainties associated with the
     effectiveness  of UV-B radiation, and (3) recommendations  for  standardiza-
     tion of experimental  procedures and  future  research  priorities.  The
     manuscript examines all of the published and unpublished material cur-
     rently available to assess the likely impact of projected increases in
     UV-B radiation upon global productivity  and upon  the distribution and
     abundance of plants in natural  ecosystems.  Despite  a  broad range of
     experimental protocols and dosimetry, in nearly half of the plant species
     examined, UV-B radiation produced  a  deleterious effect on yield.  UV-B
     radiation affected both the quantity and quality  of  crop yield, but the
     magnitude of the effect was highly variable from  one year to  another.  The
     limitations to this assessment are formidable, particularly due to a
     paucity of experimental data and the slow development  of appropriate
     technology.  Therefore, the actual impact on crop yield resulting from
     exposure to increased levels of UV-B radiation may be  far greater or
     somewhat less  than current knowledge indicates.
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Publications:

     Teramura, A. H.  Current risks and uncertainties of stratospheric ozone
          depletion upon plants.  In:   Risks of Trace Gases  That  Can  Modify the
          Stratosphere, Volume VIII.  U.S. Environmental  Protection Agency (in
          press).

Project Manager:   Robert C. Worrest  FTS 420-4666/4600
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                  Corvallis Environmental  Research  Laboratory
          Project Status Report — Global  Climate Change/Photobiology
                               December 31,  1987

Title:  Ecological  Effects of Global  Climate Change (46)

Objective! s):

     Provide state-of-science information  on the  potential , most  probable, and
     most problematic ecological  effects of global  climatic changes  resulting
     from tropospheric 'greenhouse'  gases.

Output Status:

     Research  plan for ecological  effects  (11/87).   Delayed to  05/88.

     Internal  report to provide technical  support  for congressional  report on
     environmental  effects (04/88).  Delayed to 07/88.

     Implementation plan for ecological effects research  in global climate
     change (07/88).  Delayed to 12/88.

     Draft reports: Assessing the sensitivity of  aquatic  systems  to  changes  in
     regional  climatic patterns.  Completed; data  forwarded to  ORD Headquarters
     to be incorporated in final  report.

Activities:

     There was a management meeting held by Office  of Policy, Planning,  and
     Evaluation to plan the activities contributing to the congressional  report
     on environmental effects of global climatic  change.   Several participants
     in the Global  Climate Project attended a conference  organized by  the
     Climate Institute, Washington, D.C.  There were two  ORD  research  manage-
     ment team meetings to continue the long-term research planning  process.

Project Manager:  Robert C. Worrest  FTS 420-4666/4600
                                       73

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                  Corvallis Environmental  Research Laboratory
              Project Status Report — Superfund/Hazardous Wastes
                               December 31, 1987

Title:  Cost-Effective Screening Bioassays for Release Assessment (20)

Objective(s):

     Develop and demonstrate or field validate a multi-media biological  screen-
     ing protocol to assist in determining hazard potential  and extent  of
     contamination by waste released into the aquatic or terrestrial  environ-
     ment.

Output Status:

     Bioassay protocols for assaying toxicity at hazardous waste sites  (01/88),
     On schedule.

Activities:

     Papers were presented:

          Annual meeting of the Society for Environmental Toxicology and
          Chemistry, Pensacola, Florida, November 9-13, 1988.

               Direct assessment of environmental risk using bioassays  (J.
               Greene).

               Requirements for EDTA in algal growth media (J. Greene).

               Statistical approaches to screening army ammunition plants for
               biotoxicity (J. Greene) (with J. M. Thomas, L. A. Athey,  and D.
               W. Carlisle, Battelle PNL).

          Southeastern Water Pollution Biologists Association, Nashville,
          Tennessee, November.

               Bioassessment methods for RCRA and CERCLA sites (J. Greene).

          Superfund 87, Hazardous Materials Control Research Institute,  8th
          Annual National Conference, Washington, D.C., November 16-18,  1987.

               Soil stabilization treatability study at Western Processing
               Superfund site (J. Greene) (with John Barich, Region X;  and R.
               Bond, ICF-Northwest, Seattle).

Publications:

     Use of Selenastrum capricornutum to assess the toxicity potential  of
          surface and groundwater contamination cuased by chromium waste.
          Journal of_ Environmental Toxicology and Chemistry (in press).

Project Manager:  Charles W. Hendricks/Joseph C. Greene  FTS 420-4582/4776


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                  Corvallis Environmental  Research Laboratory
              Project Status Report — Superfund/Hazardous  Wastes
                               December 31, 1987

Title:  Site and Situation Assessment (22)

Objective(s):

     Provide uniform, useful field manuals to describe the  major environmental
     processes, effects, and assessment methods that will assist decision
     makers with containment and cleanup of hazardous wastes.  The documents
     focus on biological and ecological effects of various  cleanup scenarios.

Output Status:

     Special report on bioavailability of industrial and domestic  waste
     products entering the Clark Fork River (Region VIII)  (08/88).  On schedule.

Activities:

     CERL staff processed samples and performed bioassays on materials from the
     Douglasville Superfund site, Union, Penneylvania (in cooperation with the
     Environmental Response Team, EPA-Edison, New Jersey, and EPA  Region III)
     and the Drake Chemical Company Superfund site, Lock Haven, Pennsylvania
     (in cooperation with EPA Region III).

     Work continued on the United Chrome hazardous waste site, Corvallis,
     Oregon (in cooperation with EPA Region III).

     An agreement was initiated with Environment Canada for CERL to participate
     in a study to compare various Canadian as well as U.S. laboratory capa-
     bilities in performing algal, fish, and microbial assays on hazardous
     wastes.

     Assessments have been completed on the McLaren Site mine tailings (near
     Cooke, Montana) and the data analysis is underway.

Project Manager:  Charles W. Hendricks/Joseph C. Greene  FTS 420-4582/4776
                                       77

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                  Corvallis Environmental Research Laboratory
              Project Status Report  —  Super fund/Hazardous Wastes
                               December 31, 1987

Title:  Dioxin Unavailability  Food  Chain (27)

Objective(s):

     Determine the potential  for  accumulation of dioxin in terrestrial plants
     and animals that are consumed by man.

Output Status:

     Journal  article on potential bioaecumulation of 2,3,7,8-TCDD from contam-
     inated soils in large animals (12/87).  Complete.

Activities:

     This project has been completed and a journal article prepared for sub-
     mission.

     Preliminary results suggest  that the biological half-life of TCDD in dairy
     cows is  less than 1 week with feces serving as the major route of elimina-
     tion.  In tests using a TCDD-contaminated silty clay loam soil typical of
     the Times Beach, Missouri, area, 10-15% of the dioxin ingested with the
     soil was  detected in the milk.  The bioavailability and transport of
     dioxin to milk from this soil is comparable to that observed when cows
     were fed  dioxin-contaminated grain.

Publications:

     Jones, D., S. Safe, E. Morcom,  H.  Holcomb, C. Coppack, and W. Ivie.
          Unavailability of grain and  soil-borne 2,3,7,8-tetrachlorodibenzo-p-
          dioxin (TCDD administered  to  lactating Holstein cows).  Chemosphere
          (submitted).

Project Manager:  Jay D. Gile  FTS 420-4691
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                  Corvallis Environmental  Research  Laboratory
                     Project Status  Report —  Cold  Climate
                               December  31, 1987
Title:  Cold Climate Research Program (45)
Objective(s):
     Answer questions of concern to  EPA  Region X  and  State of Alaska regarding
     environmental  problems unique to arctic and  subarctic regions.
Output Status:
     User's manual  update for assessing  the impacts of oil and gas development
     on tundra wetlands habitats (07/88).   Delayed  due to extensive revision
     and rewriting  required for first draft.
     Journal article on avoidance of placer mining  effluents by fish (10/87)
     Completed.
     Project report on air dispersion modeling in the arctic, development/
     validation phase (09/88).  On schedule.
     Project report on application of user manual techniques to Colville River
     Delta (09/88).  On schedule.
Findings:
     Maps of historical changes in the Prudhoe Bay  Oil Field show indirect
     impacts to arctic tundra ecosystems can lag  behind  planned developments by
     many years and the total area eventually  disturbed  can greatly exceed the
     planned area of construction.
Publications:
     Walker, D. A.  et al_.  1987.  Cumulative impacts  of  oil fields on northern
          Alaskan landscape.  Science 238:757-761.
Project Manager:  James C. McCarty  FTS  420-4601
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                             198fi»88 PUBLICATIONS*
                 Environmental  Research Laboratory — CorvalHs

Abbruzzese, Brooke, Anastasia Allen, Sandra Henderson, Mary E. Kentula.  1987.
     Selecting sites for comparison with related wetlands.  IN Proceedings,
     Symposium 87 Wetlands/Peatlands.  Edmonton, Alberta, Canada, August 23-27,
     1987.  EPA/600/D-87/337.  PB 88 132 204/AS (A03).  (ERL-Cor-837D).

Anderson, J. W., J. M. Neff.and P., D. Boehm.  1986.  Sources, Fates, and
     Effects of Aromatic Hydrocarbons 1n the Alaskan Marine Environment with
     Recommendations for Monitoring Strategies.  EPA/600/3-86/018.  U.S.
     Environmental  Protection Agency, Corvallis, Oregon.  (J. McCarty, project
     officer).  PB 86 168 291/AS (All).  (ERL-Cor-302).

Angermeier, Paul L.  1986.  Assessing biotic integrity 1n the fish community  of
     a small Illinois stream.  North American Journal of Fisheries Management.
     (D. Larsen, project officer).  (ERL-Cor-717J).

Athey, L. A., J. M. Thomas,  J. R. Skalski, and W. E. Miller.  1987.  Role of
     Acute Toxicity Bioassays in the Remedial Action Process at Hazardous Waste
     Sites.  User's Manual.   Battelle Pacific Northwest Laboratories.  EPA/600/
     8-87/044.  PB 88 125 430/AS (A06).  (ERL-Cor-423).

Baker, Joan P., and Todd B.  Harvey.  1986.  Critique of Acid Lakes and Fish
     Population Status in the Adirondack Region of New York State.  EPA/600/
     3-86/046.  U.S. Environmental Protection Agency, Corvallis, Oregon.  (R.
     Lackey, project officer).  PB 86 238 318/AS (All).  (ERL-Cor-343AP).

Biggs, R. H., and P. 6. Webb.  1987.  Effects of enhanced ultraviolet-B
     radiation on yield, and disease Incidence and severity for wheat under
     field conditions,  pp.  303-311 IN Stratospheric Ozone Reduction, Solar
     Ultraviolet Radiation and Plant Life.  R. C. Worrest and M. M. CaIdwell
     (eds.).  NATO ASI Series, Vol., G8.  Springer-Verlag, Berlin, Heidelberg.
     EPA-600/D-87-060.  PB 87 176 905/AS (A02).  (J. McCarty, project officer).
     (ERL-Cor-745J).

Brakke, D. F., J. M. Eilers, and D. H. Landers.  1987.  Hydrologlc and chemical
     characteristics of darkwater, clearwater, and acidic lakes in the United
     States.  International  Symposium on Acidification and Water Pathways,
     Bolkesj, Norway.  May 4-8, 1987.  (ERL-Cor-733DAP).

CaIdwell, Martyn M.  1986.  Plant architecture and resource competition.  IN
     Potentials and Limitations of Ecosystem Analysis.  EPA/600/D-86/244.
     Springer-Verlag, Berlin.  (J. McCarty, project officer).  PB 87 117 479/AS
     (A03).  (ERL-Cor-685D).
* Copies of journal  articles and  project  summaries are available from this
Laboratory.  Project reports must be  purchased  from the National Technical
Information Service, Springfield, Virginia 22161.  Use the PB accession number
when ordering.  The price code 1s Indicated as  (A01, A02, etc.); contact NTIS
for the current price (telephone, 202/487-4600).


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Caldwell, M. M., L. B. Camp,  C.  W. Warner, and S. D. Flint.  1986.  Action
     spectra and their key role  1n assessing biological consequences of solar
     UV-B radiation change.  IN  Stratospheric Ozone Reduction, Solar Ultra-
     violet Radiation, and Plant Life.  R. C. Worrest and M. M. Cal dwell
     (eds.).  Springer-Verlag.  EPA/600/D-87/006.  PB 87 147 138/AS (A03).  (J.
     McCarty, project officer).   (ERL-Cor-639D).

Campbell, William G., Gary D. Bishop, M. Robblns Church, Jeffrey J. Lee, Ouane
     A. Lammers, and Leon H.  Liegel.  1987.  The Environmental Protection
     Agency's direct/delayed  response project:  the role of a geographic
     information system.  Geographic Information Systems and Workshop, October
     1987.  San Francisco. EPA/600/D-87/310.  U.S. Environmental Protection
     Agency.  PB 88 119 425/AS (A02).   (ERL-Cor-804DAP).

Carey, Ann, Anthony C. Janteos,  and Roger Blair.  1987.  Responses of Forests
     to Atmospheric Deposition.   National Research Plan for the Forest Response
     Program.  EPA/600/3-86/066. U.S.  Environmental Protection Agency, Environ-
     mental Research Laboratory, Corvallis, Oregon.  PB 87 140 919/AS (A06).
     (ERL-Cor-376AP).

Carney, C. E., and F. deNoyelles, Jr.   1986.  Grass carp as a potential control
     agent for cattails.  EPA/600/J-86/364.  Transactions of the Kansas Academy
     of Science 89 (3-4) 86-89,  July-December"!  (D. Larsen, project officer).
     ?B" 87 196 531 /AS (A02).   (ERL-Cor-440J).

Chapman, G., M. Cairns, D. Krawczyk, K. Malueg, A. Nebeker, and G. Schuytema.
     1986.  Report on the toxicity and  chemistry of sediments from Toronto and
     Toledo harbors.  IN Evaluation of  Sediment Bioassessment Techniques.
     Report of the Dredging Subcommittee to the Great Lakes Water Quality
     Board, International  Joint  Commission, Windsor, Ontario.  EPA/600/D-87/
     061.  PB 87 180 014/AS (A03).  (ERL-Cor-473D).

Church, M. Robbins, and Robert S. Turner, eds.  1986.  Factors Affecting the
     Long-Term Response of Surface Waters to Acidic Deposition:  State-of-the-
     Science.  EPA/600/3-86/025. U.S.  Environmental Protection Agency,
     Corvallis.  PB 86 178 118/AS (A14).  (ERL-Cor-318AP).

Church, M. Robblns.  1987. Book review of Add Rain;  A Water Resources Issue
     for the 80's.  R. Herrmann  and A.  I. Johnson, eds.  American Water
     Resources Association, Bethesda, MD.  83 pp.  1983.  EPA/600/M-87/027.
     Published in EOS Transactions, American Geophysical Union 68 (15):209.  PB
     88 101 688/AS~TA~OTn  (ERL-Cor-769m1sc .)

Dawson, Clyde L., and Ronald  A.  Hellenthal.  1986.  A Computerized System for
     the Evaluation of Aquatic Habitats Based on Environmental Requirements and
     Pollution Tolerance Associations of Resident Organisms.  EPA/600/3-86/019.
     U.S. Environmental Protection Agency, Corvallis, Oregon.  (D. Larsen,
     project officer).  PB 86 167 343/AS (A06).  (ERL-Cor-323).  (with project
     summary).

Dewey, Sharon L.  1986.  Effects of the herbicide atrazine on aquatic Insect
     community structure and  emergence  1n experimental ponds.  Ecology 67 (1):
     148-162, February.  (D.  Larsen, project officer).  (ERL-Cor-438J).


                                       84

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EHers, J. M., D. F. Brakke, D. H.  Landers,  and  W.  S. Overton.  1987.  Chem-
     istry of wilderness lakes in the Western  United States.  IN Proceedings
     World Wilderness Congress, September 14-18, 1987.  Estes Park, Colorado.
     EPA/600/D-87/338.  PB 88 132 105/AS  (A03).   (ERL-Cor-838DAP).

Eilers, J. M., D. H. Landers, D. F. Brakke,  and  R.  A. Linthurst.  Factors
     contributing to differences in acid  neutralizing capacity among lakes in
     the Western United States.  _[N 23rd  Annual  AWRA Conference and Symposium,
     November 1-6, 1987, Salt Lake  City,  UT.  EPA/600/D-87/309.  (R. Lackey,
     project officer).  PB 88 112 156/AS  (A02).   (ERL-Cor-802DAP).

Evans, L. S., K. F. Lewin, E. M. Owen, and K.  A. Santucci.  1986.  Comparison
     of yields of several  cultivars of field-grown  soybeans exposed to simu-
     lated acidic rainfalls.  New Phytologist  102:  409-417, April.  (J. Lee,
     project officer).  (ERL-Cor-6"71JAP).

Fernandez, I. J., and P. A. Kosian.  1987.  Soil air carbon dioxide concentra-
     tions in a New England spruce-fir forest.  EPA-600/J-87/043.  Soil Science
     Society of America Journal 51: 261-263.  (R. Lackey, project oTFTcerTT
     PB 87 203 162/AS (A02).  (ERL-Cor-676JAP).

Flexner, J. L., B. Lighthart, and B. A. Croft.  1986.  The effects of microbial
     pesticides on non-target, beneficial  arthropods.  EPA/600/J-86/409.
     Agriculture, Ecosystems, and Environment  16: 203-254, August. PB 88 113
     212/AS (A04).  (ERL-Cor-575J)".

Flint, S. D., and M. M. Caldwell.  1986.   Comparative sensitivity of binucleate
     and trinucleate pollen to ultraviolet radiation:  A theoretical perspec-
     tive.  IN Stratospheric Ozone  Reduction,  Solar Ultraviolet Radiation, and
     Plant Life.  R. C. Worrest and M. M. Caldwell  (eds.).  Springer-Verlag.
     (J. McCarty, project  officer),  PB 87 147 120/AS (A02).  (ERL-Cor-694D).

Ford, D. E., K. W. Thornton, J. F.  Nix, J. T.  Malcom, and F. E. Payne.  1986.
     Acidic Episodes and Surface Water Chemistry:  A Comparison of Northeast
     and Southeast Study Sites.  October. EPA/600/3-87/018.  U.S. Environ-
     mental Protection Agency, Corvallis, Oregon.  (M. Robbins, project
     officer).  (ERL-Cor-371AP).

Freda, Joseph, and William A. Dunson.  1986.  The effect of prior exposure on
     sodium uptake in tadpoles exposed to low  pH water.  EPA/600/J-86/368.
     Journal of Comparative Physiology B  156:  649-654, December.  (R. Lackey,
     project officer).  PB 87 198 826/A5  (A02).   (ERL-Cor-714JAP).

Gaston, L. A., R. S. Hansel1, and R. D. Rhue.  1986.  Sulfate mobility in acid
     soils and implications with respect  to  cation  leaching:  a review.  IN
     Proceedings of the 43rd annual meeting  of the  Soil Crop Science Society of
     Florida, October 25-27, 1983.   (R. Wilhour, project officer).  EPA-600/
     D-86/094.  PB 86 194  230/AS (A02).  (ERL-Cor-628DAP).

Gile, Jay D., and S. Mark  Meyers.  1986.   Effect of adult mallard age on avian
     reproductive tests.  EPA/600/J-86/399.  Archives of Environmental Contamin-
     ation and Toxicology  15; 751-756, October^PTTS8 101 639/AS (A02).
     7ERiTCor-587J).


                                       85

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Greene, Joseph C., W. E. Miller, and Ellen  Merwin.   1986.  The effect of
     secondary effluents on eutrophication  in  Las Vegas  Bay,  Lake Mead, Nevada.
     EPA/600/J-86/406.  Water, Air, and Soil Pollution 29: 391-402, January.
     PB 88 107 057/AS (A02TT (ERL-Cor-558JT.

Griffith, Glenn E., James M. Omernlk, and Andrew J.  Kinney.   1986.  Interpret-
     ing patterns of lake alkalinity in the Upper Midwest Region, USA.  Presen-
     tation at Lake and Reservoir Management:   Influences of  Nonpoint Source
     Pollutants and Acid Precipitation.  North American  Lake  Management Society
     Symposium.  November 5-8, 1986, Portland, Oregon.   EPA/600/D-87/009.  PB
     87 145 769/AS (A02).  (ERL-Cor-698D).

Guderiah, Robert, and David T. Tingey.  1987.   Study on  the need and the
     establishing of air quality criteria for  nitrogen oxides.  Institut fur
     Angewandte Botanik der Universitat-GHS Essen, Germany.   January 1987.  170
     pp. (in German)

Haines, Terry A., Stanislas J. Pauwels, and Charles  H. Jagoe. 1986.  Predict-
     ing and Evaluating the Effects of Acidic  Precipitation on Water Chemistry
     and Endemic Fish Populations in the Northeastern United  States.  U.S. Fish
     and Wildlife Service Biological Report 80(40.23), Air Pollution and Acid
     Rain Report No. 23.  PB 86 188 703.  (R.  Lackey, project officer).
     (ERL-Cor-349AP).

Heagle, Allen S., W. W. Heck, V. M. Lesser, J. 0. Rawlings, and F. L. Mowry.
     1986.  Injury and yield response of cotton to chronic doses of ozone and
     sulfur dioxide.  EPA/600/J-86/366.  Journal of  Environmental Quality 15
     (4): 375-382, October-December.  (D. Tingey, project officer).  PB 87 196
     085/AS (A02).  (ERL-Cor-507J).

Heagle, Allen S., W. W. Heck, V. M. Lesser, and J. 0. Rawlings.  1987.  Effects
     of daily ozone exposure duration and oncentration fluctuation on yield of
     tobacco.  Phytopathology 77 (6): 856-862.  (D.  Tingey, project officer).
     (ERL-Cor-eTOJTT

Heck, Walter W., 0. C. Taylor, R. M. Adams, J. E. Miller, D.  T. Tingey, and L.
     H. Weinstein.  1986.  National Crop Loss  Assessment Network (NCLAN) 1984
     Annual Report.  EPA/600/3-86/041.  U.S. Environmental Protection Agency,
     Environmental Research Laboratory, Corvallis, Oregon.  (D. Tingey, project
     officer).  PB 86 232 949/AS (All).  (ERL-Cor-352).

Heggestad, H. E., J. H. Bennett, and E. H.  Lee. 1986.   Effects of Increasing
     doses of sulfur dioxide and ambient ozone on tomatoes:   plant growth, leaf
     injury, elemental composition, fruit yields, and quality.  Phytopathology
     76 (12): 1338-1344, December.  (D. Tingey, project  officer)"(ERL-Cor-
     510J).

Heiskary, Steven A., and David P. Larsen.  1986. Analysis of regional lake
     water quality patterns:  Implications  for resource  management in Minnesota.
     Proceedings Lake and Reservoir Management: Influences of Nonpoint Source
     Pollutants and Acid Precipitation.  North American  Lake  Management Society
     Symposium, November 5-8, 1986, Portland,  Oregon. EPA/600/D-87/010.  PB 87
     188 157/AS (A03).  (ERL-Cor-699D).


                                       86

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Herdendorf, Charles E.  1987.  The Ecology of the Coastal  Marshes  of Western
     Lake Erie:  A Community Profile.  U.S. Fish and Wildlife Service,  U.S.
     Department of the Interior; Corps of Engineers, U.S.  Department of the
     Army; and U.S. Environmental Protection Agency, Corvallis,  Oregon.  U.S.
     FWS Biological Report 85(7.9).  (E. Preston, EPA project officer;  W.
     Duffy, FWS project officer).  PB 87 186 805/AS.  (ERL-Cor-416).

Hodges, Steven C.  1987.  Aluminum spedatlon:  A comparison of  five methods.
     EPA/600/J-87/057.  Soil Science Society of America Journal  51;  57-64.
     (R. Wilhour, project~6TfTcer).  PB 87 213 252/AS (A02).  (ERL-Cor-584JAP).

Hughes, Robert M., David P. Larseri, and James M. Omernlk.   1986.  Regional
     reference sites:  A method for assessing stream potentials.  EPA/600/J-86/
     218.  Environmental Management 10 (5):629-635.  PB 87 170 767/AS (A02).
     (ERL-Cor-477J).

James, Bruce R., and Susan J. Riha.  1986.  pH buffering in forest soil organic
     horizons:  relevance to add precipitation.  EPA/600/J-86/404.   Journal of
     Environmental Quality 15 (3): 229-234, July-September.  (R. Wilhour,
     project officer).  PB 88 103 627/AS (A02).  (ERL-Cor-515JAP).

Kanciruk, P., J. M. Eilers, R. A. McCord, D. H. Landers, D. F. Brakke,  and
     R. A. Llnthurst.  1986.  Characteristics of Lakes 1n  the Eastern United
     States.  Volume III.  Data Compendium of Site Characteristics and  Chemical
     Variables.  EPA/600/4-86/007c.  U.S. Environmental Protection Agency,
     Washington, D.C.  439 pp.  PB 87 110 409c.  (ERL-Cor-337c).  See Llnthurst
     e£ al_. 1986 for Volume I and Overton et^ al_. 1986 for Volume II.

Karr, James R.  1986.  Biological monitoring and environmental assessment:  A
     conceptual framework.  Environmental Management.  (D. Larsen, project
     officer).  (ERL-Cor-718J"7T

Kentula, Mary E.  1986.  EPA adopts wetland research plan.  EPA/600/M-87/016.
     National Wetlands Research Newsletter 8 (4): 14-15.  (E. Preston,  project
     officer).PB 87 187 076/AS (A02).TERL-Cor-657misc).

Kentula, Mary E.  1986.  Wetland rehabilitation and creation 1n  the  Pacific
     Northwest.  Presentation to the Washington State Department of  Ecology
     Wetlands Conference on "Wetland Functions, Rehabilitation,  and  Creation in
     the Pacific Northwest:  The State of Our Understanding." Port  Townsend,
     Washington, April 30-May 2, 1986.  EPA/600/D-86/183.   (D. Larsen,  project
     officer).  PB 86 241 023/AS (A03).  (ERL-Cor-667D).

Kentula, Mary E.  1987.  Does mitigation work?  EPA's wetland research  program
     is checking.  IN Proceedings of the Hillsborough Community  College 14th
     Annual Conference on Wetlands Restoration and Creation.  May.  Tampa, FL.
     EPA/600/D-87/308.  (E. Preston, project officer).  PB 88 112 149/AS (A02).
     (ERL-Cor-800D).

Kentula, Mary E.  1987.  EPA Initiates wetland research in the Pacific  North-
     west.  EPA/600/M-87/026.  The Northwest Environmental Journal 3; 163-164,
     March.  PB 88 101 696/AS (7iOlf)T  (ERL-Cor-768misc).
                                       87

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Kettle, W. D., F. deNoyelles, Jr., 6.  D.  Heacock,  and  A. M. Kadoum.   1986.
     Diet and reproductive success of  bluegill  recovered from  experimental
     ponds treated with atrazlne.  Bulletin of  Environmental Contamination and
     Toxicology.  (D. Larsen, project  officer!.  (ERL-Cor-716J~n

Klester, A. Ross.  1987.  Background for  the synthesis and Integration of
     forest response to atmospheric deposition.  Presented at  the  California
     Forest Response Program Planning  Conference,  Asllomar, CA, February 22-25.
     (R. Blair, project officer).  (ERL-Cor-775DAP).

Kiester, A. Ross.  1987.  The role of  models 1n the Forest Response  Program.
     IN Proceedings 1987 IUFRO Forest  Growth Modeling  and Prediction Confer-
     ence, Minneapolis, Minnesota.  August 24-28,  1987. EPA/600/D-87/334.  PB
     88 130 281/ AS (A02).  (ERL-Cor-828DAP).

King, David A.  1987.  A model for predicting the  influence of moisture stress
     on crop losses caused by ozone.  EPA/600/J-87/077. Ecological  Modelling
     35: 29-44, January.  (D. Tingey,  project officer). PB 88 102 9837ES
     (A02).  (ERL-Cor-467J).

Klein, Theodore M., and Martin Alexander.  1986.  Effect of the quantity and
     duration of application of simulated acid  precipitation on nitrogen
     mineralization and nitrification  1n  a forest  soil. EPA/600/J-86/370.
     Water, Air, and Soil Pollution 28: 309-318, April. (R. Wllhour, project
     oTTTcerTT PlTTfr 198 8427 AS (A02).   (ERL-Cor-736JAP).

Kress, L. W., J. E. Miller, H. J. Smith,  and J. 0. Rawlings.   1986.   Impact of
     ozone and sulphur dioxide on soybean yield.  EPA/600/J-86/157.   Environ-
     mental Pollution (Series A) 41: 105-123.  PB  87 118 519/AS (A02).  (D.
     Tingey, project officer).  (ERL-Cor-512J).

Larsen, David P., Frank DeNoyelles, Jr.,  Frank  Stay, and Tamotsu Shiroyama.
     1986.  Comparisons of single species, microcosm,  and experimental pond
     responses to atrazine exposure.  EPA/600/J-86/050. Envi ronmental Toxi col -
     ogy and Chemistry 5: 179-190, February. PB 86 199 379/AS (A02). (ERL-
Larsen, David P., Robert M. Hughes, James M.  Omernik,  Daniel  R.  Dudley,
     Christina H. Rohm, Thomas R. Whittier, Andrew J.  Kinney, and  Alisa  L.
     Gallant.  1986.  The correspondence between spatial  patterns  in  fish
     assemblages in Ohio streams and aquatic  ecoregions.   EPA/600/J-86/365.
     Envi ronmental Management 10 (6): 815-828,  December.   (D. Larsen, project
     officer).  PB 87 196 077/AS (A02).   (ERL-Cor-480J).

Lee, Jeffrey J.  1985.  Effect of simulated sulfuric acid rain on  the chemistry
     of a sul fate-adsorbing forest soil.  EPA-600/J-85-105.   Water, Air, and
     Soil Pollution 25; 185-193.  PB 85  244 259/AS (A02).  (EKL^Cor-3~04J).

Lefohn, Allen S., W. E. Hogsett, and David T. Tingey.   1986.   A  method for
     developing ozone exposures that mimic ambient conditions in agricultural
     areas.  EPA/600/J-86/046.  Atmospheric Environment 20 (2):  361-366,
     February.  PB 86 195 948/AS (AOZ).   (ERL-Cor-451J).

-------
Levin, Morris A., Ramon Seldler, Al  W.  Borquln,  John  R. Fowle  III, and Tamar
     Barkay.  1987.  EPA developing  methods  to assess environmental release.
     Biotechnology 5: 38-45, January.

Link, S. 0., R. J. Fellows, D. A. Cataldo, J. D. Droppo, and P. Van Voris.
     1987.  Estimation of an Aerial  Deposition and  Foliar  Uptake of Xeno-
     blotlcs:  Assessment of Current Models. Deprtment of Energy, Pacific
     Northwest Laboratories.  PNL-6173.  EPA/300/3-87/050. U.S. Environmental
     Protection Agency, Corvallis, Oregon.   (J.  Me  Farlane, project officer).
     (ERL-Cor-439).

Linthurst, R. A., D. H. Landers, J.  M.  Ellers, D. F.  Brakke, W. S. Overton, E.
     P. Meier, and R. E. Crowe.  1986.   Characteristics of Lakes 1n the Eastern
     United States.  Volume I. Population Descriptions and Physlco-Chemical
     Relationships.  EPA/600/4-86/007a.  U.S. Environmental Protection Agency,
     Washington, D.C.  136 pp.  PB 87  110 383a.   (ERL-Cor-337a).

     Overton, W. S., P. Kandruk, L. A. Hook, J. M. Ellers, D. H. Landers, D.
          F. Brakke, D. J. BUck, Jr.,  R. A. Linthurst, M. D.  DeHaan, and J. M.
          Omernik.  1986.  Characteristics of Lakes 1n the Eastern United
          States.  Volume II. Lakes  Sampled  and  Descriptive Statistics for
          Physical and Chemical Variables.   EPA/600/4-86/007b.  U.S. Environ-
          mental Protection Agency,  Washington,  D.C.  374  pp.  PB 87 110 391b.
          (ERL-Cor-337b).

     Kandruk, P., J. M. Ellers, R.  A.  McCord, D. H.  Landers,  D. F. Brakke, and
          R. A. Linthurst.  1986. Characteristics  of Lakes 1n the Eastern
          United States.  Volume III.  Data Compendium of Site  Characteristics
          and Chemical Variables. EPA/600/4-86/007c. U.S. Environmental
          Protection Agency, Washington, D.C.  439  pp.  PB 87  110 409c.
          (ERL-Cor-337c).

     National Surface Water Survey:  Eastern Lake Survey,  Phase I (ELS-I), 1984
          (SAS Data Tape).  PB 87 193  298 (T03). EPA/DF/MT-87/024; EPA/600/
          4-86/007g.  (ERL-Cor-387g).

     National Surface Water Survey:  Eastern Lake Survey,  Phase I (ELS-I), 1984
          (SAS Export Data Tape). PB  87 193 306 (T03).  EPA/DF/MT-87/023;
          EPA/600/4-86/007d.  (ERL«Cor-387d).

     National Surface Water Survey:  Eastern Lake Survey,  Phase I (ELS-I), 1984
          (EBCDIC Tape).  PB 87 193  314 (T03).   EPA/DF/MT-87/025; EPA/600/4-86/
          007f.  (ERL-Cor-387f).

     National Surface Water Survey::  Eastern Lake Survey,  Phase I (ELS-I), 1984
          (ASCII Tape).  PB 87 193 322  (T03).  EPA/DF/MT-87/026; EPA/600/4-86/
          007c.  (ERL-Cor-387c).

     National Surface Water Survey::  Eastern Lake Survey,  Phase I (ELS-I), 1984
          (for microcomputers).  PB  87  193 330 (D05). EPA/DF/DK-87/029;
          EPA/600/4-86/0071.  (ERL-Cor-3871).
                                       89

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Malueg, K. W., G. S. Schuytema, and D. F.  Krawczyk.   1986.   Effects of sample
     storage on a copper-spiked freshwater sediment.   EPA/600/J-86/276.
     Environmental Toxicology and Chemistry 5:  245-253,  April.   PB 87 166
     815/AS (A02).  (ERL-Cor-432J ) .

Mansell, R. S., S. A. Bloom, H. M. Sellm,  and  R.  D. Rhue.   1986.  Mult1spec1es
     cation leaching during continuous displacement of electrolyte solutions
     through soil columns.  EPA/600/J-86/369.   Geoderma  38:  61-75, November.
     (R. Mil hour, project officer).  PB 87 198 834 /AS (A02).  (ERL-Cor-735JAP).

Me Farlane, Craig, and Thomas Pfleeger. 1986.   Plant Exposure  Laboratory  and
     Chambers.  U.S. Environmental Protection  Agency, Corvallis, Oregon.
     EPA/600/3-86/007a,b.  Volume I.  PB 86 155 777/AS (A03);  Volume  II
     (Appendices 1-6), PB 86 155 785/AS (A13).   (ERL-Cor-301a,b).

Meyers, S. Mark, and Jay D. Gile.  1986.  Mallard reproductive  testing in  a
     pond environment:  a preliminary study.  EPA/600/J-86/400. Archives  of
     Environmental Contamination and Toxicology 15 : 757-761 ,  December.  P~B  58"
     101 621/AS (A02).  (ERL-Cor-600jy:

Meyers, S. Mark, and Susan M. Schiller. 1986.   TERRE-TOX:   A  data base  for
     effects of anthropogenic substances on terrestrial  animals.  EPA/600/J-86/
     051.  Journal of Chemical  Information and  Computer  Sciences 26;  33-36,
     February.  PB 35" 199 361/AS (A02).  (EKL~^Cor-506J).

Meyers, S. M., and S. M. Schiller.  1986.   TERRE-TOX  Terrestrial Toxicity  Data
     Base.  EPA/600/M-86/008.  U.S. Environmental  Protection Agency,  Corvallis,
     Oregon.  (H. Kibby, project officer).  PB 86 178 043/AS (T03).   (ERL-Cor-
     327).  Two magnetic tapes.  No project report  or summary.

Moser, Thomas J., David T. Tin gey, and Kent D.  Rodecap.   1986.   Direct and
     residual effects of cadmium on the growth and  elemental composition of
     Arabidopsis thai 1 ana.  Angewandte Botanik 60:  391-405.

Murali, N. S., and Alan S. Teramura.  1986.  Effects  of  supplemental  ultra-
     viol et-B radiation on the growth and  physiology  of  field-grown soybean.
     EPA/ 600/0-86/378.  Environmental and  Experimental Botany  26(3) :  233-242.
     PB 87 212 866/AS (KWT.  (J. McCarty, project  officer).  (ERL-Cor-574J).
Murphy, Thomas A.  1987.  Design and management of research projects.   Proceed
     ings of U.S./Malayasian Seminar on R & D Management.   EPA/600/D-87/263.
     PB 88 106 380/AS (A02).  (ERL-Cor-721D).

Nebeker, Alan V., Carol  Savonen, and Donald G. Stevens.   1985.   Sensitivity of
     rainbow trout early life stages to nickel chloride.   EPA-600/J-85-016.
     Environmental Toxicology and Chemistry 4: 233-239.   PB 85  198 372/AS
     (A02).
Nebeker, Alan V., Samuel  T. Onjukka, Michael  A.  Cairns,  Daniel  F.  Krawczyk.
     1986.  Survival of Daphnia magna and Hyalella azteca In cadmium-spiked
     water and sediment.   Environmental  Toxicology "and Chemistry 5:  933-938,
     October.  (ERL-Cor-58"lJT
                                       90

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Nebeker, A. V., M. A. Cairns, S. T.  Onjukka,  and  R.  H. Titus.  1986.  Effect of
     age on sensitivity of Daphnia magna to cadmium, copper, and cyanazine.
     EPA/600/J-86/131.  Environmental  Toxicology  and Chemistry 5; 527-530,
     June.  PB 87 100 590/AS (AOZ).   (ERL-Cor-468J77

Nebeker, A. V., A. Stlnchfield, C. Savonen, and G. Chapman.  1986.  Effects of
     copper, nickel , and zinc on three species of Oregon freshwater snails.
     EPA/600/ J-86/407.  Environmental  Toxicology  and Chemistry 5; 807-811, May.
     PB 88 107 198/ AS (A07TI  (ERL-Cor-569J).

Neuhauser, E. F., P. F. Durkin, M. R.  Malecki, and M. Anatra.  1986.  Compara-
     tive toxidty of ten organic chemicals to four  earthworm species.
     EPA/600/J-86/397.  Comparative  Biochemistry  and Physiology 83C (1): 197-
     200.  PB 88 107 1157 AS (A02).  (C. Callahan, project officer).   (ERL-Cor-
     550J).

Neuhauser, E. F., R. C. Loehr, and Michael  R. Malecki.  1986.  Contact and
     artificial soil tests using earthworms to evaluate the Impact of wastes in
     soil.  pp. 192-203 IN Hazardous and Industrial  Solid Waste Testing:
     Fourth Symposium.  ASTM STP 886.   J. K.  Petros, Jr., W. J. Lacy, and R.
     A. Conway, Eds.  American Society for  Testing and Materials, Philadelphia.
     EPA/600/D-84/298S.  (C. Callahan, project officer).  PB 86 195 237/AS
     (A02).  (ERL-Cor-426D).

Newell, Avis D.  1987.  Predicting spring lake chemistry from fall samples.
     EPA/600/D-87/265.  Proceedings  of the  International Conference CM Acid
     Rain, 1-3 September 1987, LisFon. ~P~B~  88 106 356/AS (AOZ).  fiERL-Cor-
     77TD~AP).

Olson, Richard, project manager.  1987.  Western  Conifers Research Cooperative.
     1987 Research Plan.  Environmental Protection Agency, Corvallis, Oregon.
     PB 87 227 641 AS (A05).  (ERL-Cor-408AP).

Olszyk, David M., and David T. Tin gey.  1986. Joint action of 03 and SO? in
     modifying plant gas exchange.  EPA/600/J-86/394. Plant Physiology 82;
     401-405.  PB 88 104 278/AS (A02).  (ERL-Cor-625J).

Omernik, James.  1987.  Ecoregions of the conterminous United States. Anna! s
     of the Association of American  Geographers 77 (1): 118-125, March.
Omernik, James M.  1987.  Ecoregions of the Northeast  States.   Map.  EPA/600/
     D-87/313.  U.S. Environmental  Protection Agency,  Corvallis, Oregon.
     (ERL-Cor-794M).

Omernik, James M.  1987.  Ecoregions of the Southeast  States.   Map.  EPA/600/
     D-87/314.  U.S. Environmental  Protection Agency,  Corvallis, Oregon.
     (ERL-Cor-796M).
                                       91

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Omernlk, James M., and Glenn E.  Griffith.   1986.  Total Alkalinity of Surface
     Waters:  A Map of the Upper Midwest Region.  Map and text.  EPA-600/D-85-
     043.  U.S. Environmental Protection Agency,  CorvalUs, Oregon.  (ERL-Cor-
     2690).  Not 1n NTIS.   Also  published  1n  Envl ronmental Management 10 (6):
     829-839, 1986.

Omernlk, James M., and Glenn E.  Griffith.   1986.  Total alkalinity of surface
     waters:  a map of the western region. EPA/600/ J-86/410.  Journal of Soil
     and Water Conservation 41 (6):  374-378,  November-December.  PB 88 104
      ~~    -Cor-639J ) .
Omernlk, James M., and AUsa L.  Gallant.   1986.   Ecoregions of the Pacific
     Northwest.  EPA/ 600/3-86/033.   U.S.  Environmental  Protection Agency,
     Environmental Research Laboratory, CorvalUs, Oregon,  w/map.  (ERL-Cor-
     341).

Omernlk, James M., and AUsa M.  Gallant.   1987.   Ecoregions of the South
     Central States.  Map.  EPA/600/D-87/315.  U.S.  Environmental Protection
     Agency, Corvallis, Oregon.   (ERL-Cor-792M).

Omernlk, James M., and Alisa M.  Gallant.   1987.   Ecoregions of the Southwest
     States.  Map.  EPA/600/D-87/317.  U.S.  Environmental Protection Agency,
     CorvalUs, Oregon.  (ERL-Cor-795M).

Omernlk, James M., and AUsa M.  Gallant.   1987.   Ecoregions of the West Central
     States.  Map.  EPA/600/D-87/317.  U.S.  Environmental Protection Agency,
     Corvallis, Oregon.  (ERL-Cor-793M).

Overton, W. S., P. Kanciruk, L.  A.  Hook,  J.  M. Eilers,  D. H. Landers, D. F.
     Brakke, D. J. Blick, Jr., R. A. Linthurst, M. D. DeHaan, and J. M. Omernlk,
     1986.  Characteristics of Lakes 1n the  Eastern  United States.  Volume  II.
     Lakes Sampled and Descriptive  Statistics  for Physical and Chemical
     Variables.  EPA/600/4-86/007b. U.S. Environmental  Protection Agency,
     Washington, D.C.  374 pp.  PB  87  110 391b.   (ERL-Cor-337b).  See Linthurst
     et al_. 1986 for Volume I and Kanciruk £t  al_. 1986  for Volume III.

Peterson, S. A., J. C. Greene, W. E. Miller, and  D.  C.  Wilborn.  1987.  Bio-
     activity differences of water  and sodium  acetate eluate from municipal and
     industrial wastes.  Third Annual  EPA Solid Waste Testing and Quality
     Assurance Symposium, July 13-17.  (ERL-Cor-777D).   Not in NTIS.

Peterson, Spencer A.  1986.  Sediment  removal.  Chapter 8 IN Lake and Reservoir
     Restoration.  (G. D. Cooke, E. B. Welch,  S.  A.  Peterson, and P. R.
     Newroth).  Butterworth Publishers, Stoneham, Massachusetts.  EPA/600/
     D-84/207.  PB 84 236 397/AS (A08).   (ERL-Cor-167D) .

Quinn, S. 0., and N. Bloomfield, eds.  1986.  Acidic Deposition, Trace Contami-
     nants, and Their Indirect Human Health  Effects: Research Needs.  Proceed-
     ings of a Workshop held at  Topridge  Conference  Center, Paul Smith's, New
     York, June 19-22, 1984.  EPA/600/9-86/002.   U.S. Environmental Protection
     Agency, Corvallis, Oregon.   (R. Lackey, project officer).  PB 86 177
     581/AS (A05).  (ERL-Cor-276AP).
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Ratsch, Hllman C., and Debra Johndro.  1986.  Growth Inhibition  and morpholog-
     ical effects by several chemicals 1n Arabidopsis thaliana  (L.) Heynh.
     EPA/600/J-86/129.  Environmental Toxicology and Chemistry  5:  55-60,
     January.  PB 87 100 707/AS (A02).  (ERL-Cor-3~4TJ"n

Reed, Margaret A., and Richard J. Stolzberg.  1987.   Direct  determination of
     arsenlte by differential pulse polarography 1n  the  presence of lead(II)
     and thallium(I).  Analytical Chemistry 59 (3).   (J. McCarty,  project
     officer).  (ERL-Cor-780J).

Riitters, Kurt H.  Process models for monitoring forest  health,  l^ Proceedings
     of the IUFRO Forest Growth Modeling and Prediction  Conference, Minneapolis,
     MN, August 24-28, 1987.  EPA/600/D-87/307.  (Roger  Blair,  project officer).
     PB 88 113 675/AS (A02).  (ERL-Cor-797DAP).

Robberecht, R., and M. M. Caldwell.  1986.  Leaf UV  optical  properties of Rumex
     patlentia L. and Rumex obtusifollus L. 1n regard to a protective mechanism
     against solar UV-B radiation Injury.  IN Stratospheric  Ozone  Reduction,
     Solar Ultraviolet Radiation, and Plant Life. R. W. Worrest and M. M.
     Caldwell (eds.).  Sprlnger-Verlag.  EPA/600/D-87/008.   PB  87 147 112/AS
     (A02).  (J. McCarty, project officer).  (ERL-Cor-695D).

Rochelle, Barry P., and Parker J. Wigington, Jr.  1986.   Surface runoff from
     southeastern Oklahoma forested watersheds.  Proceedings of  the Oklahoma
     Academy of Science 66: 7-13.

Rochelle, Barry P., M. Robbins Church, and Mark B. David. 1987.  Sulfur
     retention at intensively studied sites in the U.S.  and  Canada.  Water,
     Air, and Soil Pollution 33: 73-83. March.  (ERL-Cor-636JAP).

Rodecap, Kent D., and David T. Tlngey.  1986.  Ozone-induced ethylene  release
     from leaf surfaces.  EPA/600/J-86/398.  Plant Science 44;  73-76, March.
     PB 88 107 107/AS (A02).  (ERL-Cor-420J).

Sanville, William D., H. Peter Eilers, Theodore R. Boss, and Thomas G.
     Pfleeger.  1986.  Environmental gradients in northwest  freshwater wet-
     lands.  EPA/600/J-86/413.  Environmental Management 10  (1); 125-134.
     PB 88 123 948/AS (A03).  (EllL-Cor-397J).

Shirazi, M. A., S. A. Peterson, L. Lowrie, and J. W. Hart.  1986.  Computer-
     based land classification for management of hazardous waste.  EPA/600/
     J-86/405.  Hazardous Waste and Hazardous Materials  3 (1):  77-100, March.
     PB 88 104 195/AS (A027;rE~RL-Cor-557J).

Siddens, Lisbeth K., Wayne K. Seim, Lawrence R. Curtis,  and  Gary A. Chapman.
     1986.  Comparison of continuous and episodic exposure to acidic, aluminum-
     contaminated waters of brook trout.  EPA/600/J-86/393.   Canadian Journal
     of Fisheries and Aquatic Sciences 43 (10): 2036-2040.  (C.  Powers, project
     officer).  P~B~58~ 104 286/AT (A02).  (ERL-Cor-632JAP).
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S1gal, Lorene L., and J. William Johnston,  Jr.   1986.  Effects of acidic rain
     and ozone on nitrogen fixation and  photosynthesis 1n the lichen Lobaria
     pulmonaria (L.) Hoffm.  EPA/600/J-86/395.   Environmental and Experimental
     Botany 26~(1); 59-64, January-March.   (R. Wilhour, project officer).
     PB 88 104 294/AS (A02).  (ERL-Cor-629JAP).

Sigal, Lorene L., and J. William Johnston,  Jr.   1986.  Effects of simulated
     acidic rain on one species each of  Pseudoparmella, Usnea, and Umb1licar1a.
     EPA/600/J-86/396.  Water, Air, and  Soil  Pollution 27: 315-322, February.
     (R. Wilhour, projecFoTTicerT. ~TB~SSTO? 099/AS (A02).  (ERL-Cor-630JAP).

Skelly, John M. et al., eds.  1987.  Diagnosing  Injury to Eastern Forest Trees.
     National AcTd~ Precipitation Assessment Program, Forest Response Program,
     Vegetation Survey Research Cooperative.  Published under a cooperative
     agreement with the U.S. Department  of  Agriculture-Forest Service, and
     Pennsylvania State University, College of Agriculture, University Park.
     (R. Blair, project officer).  (ERL-Cor-435AP).  Not submitted to NTIS.

Taylor, G. E., Jr., D. T. Tingey, and C. A. Gunderson.  1986.  Photosynthesis,
     carbon allocation, and growth of sulfur dioxide ecotypes of Geranium
     carolinianum L.  Oecologia (Berlin) 68:  350-357.  (ERL-Cor-555J).

Temple, Patrick.  1986.  Stomatal conductance and transpirational responses of
     field grown cotton to ozone.  EPA/600/J-86/132.  Plant, Cell, and Environ-
     ment 9 (4): 315-321, June.  (D. Tingey,  project officer)"FB 87 100
     5U87AS (A02).  (ERL-Cor-476J).

Tample, Patrick J., 0. Clifton Taylor, and  Larry F. Benolt.  1986.  Yield
     response of head lettuce (Lactuca sativa L.) to ozone.  EPA/600/J-86/011.
     Environmental and Experimental Botany  26 (1): 53-58, January-March.  (D.
     Tingey, project officer).  PTT86 176 773/AS (A02).  (ERL-Cor-471J).

Teramura, Alan H., and N. S. Murall.  1986.  Intraspeclfic differences 1n
     growth and yield of soybean exposed to ultraviolet-B radiation under
     greenhouse and field conditions. EPA/600/J-86/374.  Environmental and
     Experimental Botany 26 (1): 89-95.   (J.  McCarty, project officer).  PB 87
     203 139/AS (A02).  (ERL-Cor-564JAP).

Thomas, J. M., J. R. Skalskl, J. F. Cline,  M. C. McShane, W. E. Miller, S. A.
     Peterson, C. A. Callahan, and J. C. Greene. 1986.  Characterization of
     Chemical Waste Site Contamination and  Its Extent Using Bioassays.  EPA/
     600/J-86/130.  Environmental Toxicology and Chemistry 5; 487-510, June.
     (D. Tingey, project officer).  PB 87 100 582/AS (A02).  (ERL-Cor-463J).

Thomson, B. E., and R. C. Worrest.  1986.   Microcomputer control of an estu-
     arine research mesocosm facility.  EPA/600/J-86/408.  Journal of Micro-
     computer Applications 9: 167-177, July.  (J. McCarty, project officer).
     PB 88 104 229 (A02).  (ERL-Cor-571J).
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Tlngey, David T.  1986.  Effects of nitrogen oxides on vegetation.   IN Study on
     the Need and the Establishing of Air Quality Criteria for Nitrogen Oxides.
     R. Guderian and D. Tingey, eds.  Institute fur Angewandte Botanik der
     Universitat-GHS Essen, Germany.  EPA-600/D-85-265.  PB 86 119  542/AS
     (A03).  (ERL-Cor-549D).

Tingey, David D.  1986.  The impact of ozone on agriculture and Us conse-
     quences.  pp. 53-63 IN Acidification and Its Policy Implications.  T.
     Schneider, ed.  Elsevier Science Publishers b.V., Amsterdam.   December.
     EPA/600/D-86/105.  PB 87 175 055/AS (A02).  (ERL-Cor-640D).

Tingey, David T., Thomas J. Moser,, and Kent D. Rodecap.  1986.  Direct and
     residual effects of cadmium on the growth and elemental  composition of
     Arabidopsis thaliana.  Angewandte Botanik 60: 391-405, July.   (ERL-Cor-
     656J).

Tingey, David T., Thomas J. Moser,, Dave F. Zirkle, and Michael D. Snow.  1987.
     A plant cultural system for monitoring evapotranspi ration and  physiolog-
     ical responses under field conditions.  EPA/600/D-87/264.  Proceedings,
     International Conference Measurement of Soil and PI ant Water Status, July
     6-10, 1987.  Logan, UT.  PB 88 106 3497A"5~f7iO?Tr ~
Tingey, David T., Kent D. Rodecap, Henry Lee, Thomas J. Moser, and William E.
     Hogsett.  1986.  Ozone alters the concentrations of nutrients in  bean
     tissue.  Angewandte Botanik 60; 481-493, December.  (ERL-Cor-692J).

Walter, M., A. Porteous, R. Seidler.  1987.  Measuring genetic stability  in
     bacteria of potential use in genetic engineering.  Applied and Environ-
     mental Microbiology 53 (1): 105-109, January.  (ERL-Cor-650J~T7

Welner, G. S., C. B. Schrech, and H. W. LI.  1986.  Effects of low pH  on
     reproduction of rainbow trout.  EPA/600/J-86/112.  Transactions of the
     American Fisheries Society 115; 75-82.  (R. Lackey, project officerTT" PB
     86 230 117/AS (A02)~  TERL-Cor-655JAP) .

Westall, John, Bruce Brown a well, Ronald Hilburn, and Gerald Schuytema. 1987.
     The design of laboratory systems for controlling the activity of  moder-
     ately volatile organic compounds.  A design manual.  U.S. Environmental
     Protection Agency, Corvallis, Oregon.  EPA/600/3-87/030.  PB 87 231  759/AS
     (A04).  (S. Peterson, project officer).  (ERL-Cor-428).

Whittier, Thomas R., and David P. Larsen.  1987.  The Ohio Stream Regionaliza-
     tion Project:  A Compendium of Results.  EPA/600/3-87/025.  U.S.  Environ-
     mental Protection Agency, Corvallis, Oregon.  (ERL-Cor-412).

Whittier, Thomas R., and David L. Miller.  1986.  Stream fish communities
     revisited:  A case of mistaken identity.  EPA/600/J-86/367.  American
     Naturalist 128 (3): 433-437,, September.  (D. Larsen, project officer). PB
     87 198 818/AS (A02).  (ERL-Cor-559J).
                                       95

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Wigington, Parker 0., Jr., Clifford W.  Randall, and Thomas  GHzzard.   1986.
     Accumulation of selected trace metals 1n soils of urban runoff swale
     drains.  Water Resources Bulletin, American Water Resources  Association  22
     (1), February.  (ERL-Cor-683J).

Worrest, Robert C., and Martyn M. Caldwell, eds.  1986.  Stratospheric Ozone
     Reduction, Solar Ultraviolet Radiation, and Plant Life.  Proceedings  of  a
     Workshop held 1n Bad Windshelm, Federal Republic of Germany, September
     27-30, 1983.  (To be published by  Sprlnger-Verlag 1n cooperation with NATO
     Scientific Affairs Division).  (ERL-Cor-312).

Worrest, R. C.  1986.  Ecological and nonhuman biological effects of  solar UV-B
     radiation,  pp. 165-191 IN Effects of Changes in Stratospheric Ozone  and
     Global Climate, Volume I:  Overview.  James G. Titus,  ed.  U.S.  Environ-
     mental Protection Agency and United Nations Environment Programme.
     (ERL-Cor-703D).  Not sent to NTIS.

Zedler, Joy B., and Mary E. Kentula.  1986.  Wetlands Research Plan.   EPA/6007
     3-86/009.  U.S. Environmental Protection Agency, CorvalUs,  Oregon.   (H.
     Kibby, project officer).  PB 86 158 656/AS (A06).  (ERL-Cor-313).

Zedlar, Paul H.  1987.  The Ecology of  Southern California  Vernal Pools:   A
     Community Profile.  U.S. Fish and  Widlife Service Report 85(7.11).
     EPA/600/3-87/036.  PB 87 215 497/AS.  (E. Preston, project officer).
     (ERL-Cor-426).

Ziminski, Peter K., and Steven R. Holman.  1987.  Automated data acquisition
     and control system bolsters EPA's  air pollution research.  EPA/600/M-87/
     010.  Design and Manufacturing pp. 12-15, March.  PB 87 180 030/AS (A02).
     (ERL-Cor-689JTT

Zoran, Mark J., Thomas J. Heppner, and  Charles D. Drewes.  1986.  Teratpgenic
     effects of the fungicide benomyl on posterior segmental regeneration  1n
     the earthworm, Eisenia fetida.  EPA/600/J-86/411.  Pesticide Science  17;
     641-652, November7!  fC~. Callahan,  project officer).  PB 88 104 310/AS
     (A02).  (ERL-Cor-758J).
                           «.S. Environmental  Protect
                           library,  Roo, 2404
                           401 M *,..!
                           Washington.
                                                       ••••:•.:>•: I \lv)
                                       96

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