EPA-600/1-77-050
October 1977
                                  Environmental Health Effects Research Series
                   EVALUATION  OF  COLLECTION  MEDIA
                              IQW LEVELS OF  AIRBORNE
                                                  PESTICIDES
                                           Health Effects Research Laboratory
                                          Office of Research and Development
                                         U.S. Environmental Protection Agency
                                   Research Triangle Park, North Carolina  27711

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                                   EPA-600/1-77-050
                                   October 1977
    EVALUATION OF COLLECTION MEDIA

 FOR LOW LEVELS OF AIRBORNE PESTICIDES
                  by
 John W.  Rhoades and Donald E.  Johnson
     Southwest Research Institute
          8500 Culebra Road
      San Antonio, Texas,  78284
         Contract No.  68-02-2235
           Project Officer

           Robert G. Lewis
    Analytical Chemistry Branch
 Environmental Toxicology Division
 Health Effects Research Laboratory
 Research Triangle Park, N.C. 27711
U.S. ENVIRONMENTAL PROTECTION AGENCY
 OFFICE OF RESEARCH AND DEVELOPMENT
 HEALTH EFFECTS RESEARCH LABORATORY
 RESEARCH TRIANGLE PARK, N.C. 27711

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                           DISCLAIMER

     This report has been reviewed by the Health Effects Research
Laboratory, U.S. Environmental Protection Agency, and approved for
publication.  Approval does not signify that the contents necessarily
reflect the views and policies of the U.S. Environmental Protection
Agency, nor does mention of trade names or commercial products
constitute endorsement or recommendation for use.
                                  ii

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                               FOREWORD

     The many benefits of our modern,  developing,  industrial society are
accompanied by certain hazards.  Careful assessment of the relative risk
of existing and new man-made environmental hazards is  necessary for the
establishment of sound regulatory policy.   These regulations serve to
enhance the quality of our environment in order to promote the public
health and welfare and the productive  capacity of  our  Nation's population.

     The Health Effects Research Laboratory,  Research  Triangle Park,
conducts a coordinated environmental health research program in toxicology,
epidemiology, and clinical studies using human volunteer subjects.  These
studies address problems in air pollution, non-ionizing radiation,
environmental carcinogenesis and the toxicology of pesticides as well as
other chemical pollutants.  The Laboratory develops and revises air quality
criteria documents on pollutants for which national ambient air quality
standards exist or are proposed, provides the data for registration of new
pesticides or proposed suspension of those already in  use, conducts research
on hazardous and toxic materials, and  is preparing the health basis for
non-ionizing radiation standards.  Direct support  to the regulatory function
of the Agency is provided in the form  of expert testimony and preparation of
affidavits as well as expert advice to the Administrator to assure the
adequacy of health care and surveillance of persons having suffered imminent
and substantial endangerment of their  health.

     This report represents a research effort to extend and improve
sampling methodology for the measurement of a variety  of pesticides and
polychlorinated biphenyls in ambient air.   The emphasis is on the
evaluation and optimum utilization of  collection media for high volume
sampling in order to obtain sufficient quantities  of low level airborne
pollutants for definitive analysis.
                                          John H. Knelson, M.D.
                                              Director,
                                   Health Effects Research Laboratory
                                   iii

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                                   ABSTRACT
       Polyurethane foam plugs, Chromosorb 102, and Tenax GC have all been
found to be better sorbents than cottonseed oil for high volume collection
of airborne chlorinated and organophosphate pesticides and polychlorinated
biphenyls.  None of these were satisfactory for the recovery of carbofuran
or carbaryl.  A new high volume collecting module concept capable of use
with polyurethane foam, porous polymer beads, liquid coated glass beads, or
other solids was developed.  The entire collector is Soxhlet extracted and
no disassembly is required.  The collector-extractor is ready for reuse as
soon as residual solvent is removed.
                                     iv

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                          TABLE OF CONTENTS
ABSTRACT
LIST OF ILLUSTRATIONS
LIST OF TABLES
INTRODUCTION
SUMMARY
CONCLUSIONS
RECOMMENDATIONS

EXPERIMENTAL AND RESULTS                                         6

     A.   First Year's Work with SURC Collecting Module          6

          1.    Basic Sampling Equipment                          6
          2.    Test Pesticides                                   6
          3.    Generation of Pesticide Vapor                     6
          4.    Gas Chromatographic Analysis - Chlorinated       13
               Pesticides
          5.    Recovery of Chlorinated Pesticides from          13
               Generators
          6.    Sorption Media Evaluation Procedure              14
          7.    Sampling                                         16
          8.    Sample Preparation                               16
          9.    Evaluation of Liquid Sorbents - Chlori-          17
               nated Pesticides
         10.    Evaluation of Solid Sorbents                     18
         11.    Discussion of Collection Efficiency              22
               Results with SURC Sampling Module

     B.   Second Year's Work with SwRI Collecting Module        23

          1.    SwRI Collecting Module                           23
          2.    Test Pesticides and Related Compounds            26
          3.    Pesticide Generation                             28
          4.    Gas Chromatographic Analysis                     28
          5.    Other Equipment Changes                          29
          6.    Sorbents to be Evaluated                         29
          7.    Sorbent Evaluation Procedure                     30
          8.    Sorbent Evaluations                              31

     C.   Field Testing                                         48

          1.    Ambient Air Sampling                             48
          2.    Sample Preparation and Chromatography            48
          3.  '  Field Study Data                                 52

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                    Table of Contents (Cont'd)
                                                                Page
APPENDIX I                                                       1-1
     Chlorinated Pesticides - Collection Efficiency Data

APPENDIX II                                                      II-1
     Synthetic PCB Mixture - Collection Efficiency Data

APPENDIX III                                                     III-1
     Aroclor 1016 - Collection Efficiency Data

APPENDIX IV                                                      IV-1
     Aroclor 1254 - Collection Efficiency Data

APPENDIX V                                                       V-1
     Organophosphate Pesticides - Collection Efficiency Data

APPENDIX VI                                                      VI-1
     Carbamate Pesticides - Collection Efficiency Data

APPENDIX VII                                                     VII-1
     Substitute Pesticides - Collection Efficiency Data

APPENDIX VIII                                                    VIII-1
     Field Study Data - Computer Print-Outs
                               vi

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                       LIST OF ILLUSTRATIONS


Figure                                                          Page


   1.     Rate of Loss of Lindane from Small Bore Tubing         1 0
          Originally 1.0 jug.

   2.     Rate of Pesticide Loss from Pipe Cleaner Originally    11
          Spiked with 1.0 jug.

   3.     Schematic of Pesticide Generation and Collection       12

   4.     Collector-Extractor                                    25

   5.     Sampling Module                                        27

   6.     Gas Chromatogram of Chlorinated Pesticides Standard    33

   7.     Gas Chromatogram of Mixed PCB Standard                 35

   8.     Gas Chromatogram of Aroclor 1016                       38

   9.     Gas Chromatogram of Aroclor 1254                       40

  10.     Gas Chromatogram of Phosphates Pesticides Standard     42

  11.     Gas Chromatogram of Carbamates Standard                45

  12.     Gas Chromatogram of Substitute Pesticides Standard     47

  13.     Gas Chromatogram of Material Collected from Ambient    49
          Air vs. Charcoal-Filtered Air
                               vii

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                          LIST OF TABLES


Table                                                          Page

   1.     Test Pesticides                                        7

   2.     Percent Recovery of Pesticides from Generators        15

   3.     Collection of Pesticide Vapors from Air               -jg

   4.     Chlorinated Pesticides                                32

   5.     Synthetic PCB Mixture                                 34

   6.     Aroclor 1016                                          35

   7.     Aroclor 1254                                          39

   8.     Phosphate Pesticides                                  41

   9.     Carbamate Pesticides                                  44

  10.     Substitute Pesticides                                 45

  11.     Field Test of Tenax GC with and without Generated     59
          Pesticides

  12.     Ambient Air Samples                                   51
                                 viii

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                            SECTION 1
                           INTRODUCTION

     The widespread use of pesticides over the last several years
has resulted in a general contamination of the environment.  The
technical literature abounds with articles relative to the detection
of pesticides and their metabolites in man, animals, water, soil, and
air.
     The vapor pressures of pesticides vary considerably but all can
be vaporized into ambient air to some extent.  The low levels at which
pesticides could be expected in the atmosphere requires a high volume
sampling system for collection of adequate quantities for analysis.
     As part of the overall program for the study of airborne pesticides,
a high-volume sampler was developed by Syracuse University Research
Corporation CSURC) under NAPCA Contract No. CPA-70-15.  Later, under
EPA Contract CPA-70-145, several of these samplers were used in a field
evaluation of the method of collection.
     The collection media used in the SURC sampler was cottonseed oil
coated on glass beads.  It was found that cottonseed oil does not
effectively collect some of the more volatile chlorinated pesticides.
Further the use of cottonseed oil requires acetonitrile partitioning for
recovery of the pesticides from the oil.  Some pesticides are not
effectively recovered when acetonitrile partitioning is used as part
of the analytical procedure.
     The main purpose of this program was to evaluate various types of
collection media for the collection of chlorinated pesticides, poly-
chlorinated biphenyls (PCB's), organophosphate pesticides, carbamate
pesticides, and a few selected classes of pesticides under review by
EPA's Substitute Chemicals Program,  Liquid coatings and especially
solid sorbents such as polyurethane foam and porous polymer beads were
to be evaluated.
     During the first year, the design of the SURC sampler proved to
be inadequate for proper evaluation of the porous polymer beads.  Simple
modification of the SURC sampler resulted in test data which indicated
the solid sorbents were superior to cottonseed oil but the data were
not entirely satisfactory.

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     At the start of the second year of the contract, a new collecting
module was designed and fabricated.  The new collecting modules were
available only in the last six months of the project, but their use
made it possible to perform the required evaluations of the various
solid sorbents.

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                             SECTION 2
                             SUMMARY

     This program was performed to evaluate new sorbents for a high-
volume air sampler for monitoring pesticides, high boiling chlorinated
compounds, and other toxic organics in ambient air.  The program
demonstrated that solid sorbents such as polyether-type polyurethane
foam, Chromosorb 102, and Tenax are better sorbents than liquids such
as cottonseed oil.  These solid sorbents are more efficient in trapping
trace organics from ambient air and the desorption and subsequent
analysis is simpler and more efficient than with the liquid sorbents
tested.
     An improved collector-extractor and collecting module was developed
which permits extraction of the collector by simply transferring the
                     i
entire assembled collector to a Soxhlet extracting apparatus.   The design
minimizes sample contamination, provides more efficient handling of the
sample and improves collection efficiencies.  The collector-extractor
is adaptable and will accept many types of sorbents.  After extraction
and residual solvent removal, the collector-extractor is ready to reuse
without further special cleaning.
     The new design of the high-volume sampler with several solid sorbents
was field tested under different meteorological conditions.  The system
was shown to be capable of measuring chlorinated organics in ambient air
at the ng/m  level.

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                             SECTION 3
                            CONCLUSIONS

     The use of solid sorbents for the collection of chlorinated
pesticides, PCB's, and organophosphate pesticides is a great improve-
ment over the cottonseed oil-coated glass beads.  Not only is the
objectionable acetonitrile partitioning step of the analytical scheme
avoided, but the solid sorbents tested are more efficient sorbents
than cottonseed oil.  Also, the sorbent is ready for reuse as soon as
the solvent used for extraction has been evaporated from the sorbent.
     The basic design of the new collecting module permits the use of
a variety of sorbent forms such as liquid-coated glass beads, polyure-
thane foam, and small particle-size porous polymer beads or other solid
sorbents.  Any of the above sorbents can be used in one or more of the
possible designs of the glass collector-extractor.
     Polyurethane foam, Chromosorb, 102, and Tenax GC were evaluated
on a comparative basis, using the collecting module as described in the
body of this report.  All three appear to be good sorbents for most of
the test materials used in this program.  There is some indication that
polyurethane foam may not completely retain some of the less polar but
more volatile compounds, such as a-BHC. , It is assumed that other porous
polymer beads may also be good sorbents for the compounds tested in this
program.        V
     Although little difference in performance could be noted between
Chromosorb 102  and Tenax GC, the Tenax did appear to generally collect
more total material from ambient air than either the Chromosorb 102 or
polyurethane foam, based on there being more color in the extracted
ambient air samples.

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                             SECTION 4
                          RECOMMENDATIONS

     It is recommended that a new sampling module of the concept
described in the text of this report be considered to replace the
presently used SURC collecting module and that solid sorbents be
used in place of liquid-coating glass beads.   These recommendations
are made for the following reasons:
     1.   Solid sorbents were found to be better sorbents than
          the liquid-coated glass beads evaluated.
     2.   The sampling module concept described allows freedom
          of choice of solid sorbents as well as the continued
          use of liquid-coated glass beads if desired.
     3.   The concept of a combined collector-extractor simplifies
          analysis.
     4.   Extraction from solid sorbents does not require the
          acetonitrile partitioning step that is required when
          cottonseed oil is used as the liquid sorbent.
     Based on the limited number of compounds tested on this program,
it would appear that either Chromosorb 102 or Tenax GC are marginally
better collectors than polyether-type polyurethane foam and would
therefore be preferred to polyurethane foam.

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                            SECTION 5
                     EXPERIMENTAL AND RESULTS

A.   First Year Work with SURC Collecting Module
     1.   Basic Sampling Equipment
          Two SURC samplers of the original design were furnished
to the Contractor by EPA.  Components to fabricate two SURC collecting
modules and extra components were also furnished by EPA.  These samplers
and collecting modules are adequately described in the report of the
work under EPA Contract CPA-70-145* and will not be described here.
     2.   Test Pesticides
          The test pesticides to be used in the program were chosen
with one or more of the following considerations in mind:
               Chemical class  (chlorinated pesticide, phosphorus-
               containing pesticide, carbamate-type pesticide),
               Vapor pressure  (or relative GC elution time),
          -    Volume of usage in agriculture,
          -    Probability of occurrence in ambient air.
          Table 1 lists the test pesticides by class.
     3.   Generation of Pesticide Vapor
          Initially, it was felt desirable to generate pesticides during
all or most of the  24-hour sampling period, and at least two types of
                >
pesticide generation were needed.  The pesticides with very low vapor
pressures may be deposited on a surface which is completely exposed
to the sampling air stream only a few centimeters above the sorbent
being  tested.  This can be almost any type of surface from which the
pesticide can easily be removed by solvents so that a material balance
can be calculated.  A  short piece  (2 cm) of pipe cleaner  (2-mm diameter)
was found to be satisfactory for the test chlorinated pesticides with low
vapor  pressures.  The more volatile chlorinated pesticides  evaporate
rapidly  from the pipe  cleaner.  Control of the evaporation  rate of the
more volatile pesticides  is exercised by depositing a few microliters
of a hexane solution of  the test pesticides in the bottom of a short,
4-mm O.D. tube.
 * B.  Compton,  B.  Bazydlo,  and G.  Zweig,  "Field Evaluation  of Methods  of
   Collection and Analysis  of Airborne Pesticides,"  Final Report,  Contract
 CPA-70-145,  U.S.  Environmental Protection Agency, Research Triangle Park,
 N.C., May 1972 (NTIS No. PB-214008).

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                     TABLE 1.   TEST PESTICIDES
Class

Chlorinated
Common Name
                    a-BHC
                    Lindane
                    Aldrin
                    p,p'-DDE


                    p,p'-DDT


                    Mirex



Phosphorus-containing

                    Mevinphos


                    Diazinon
                    Methyl Parathion
Carbamates
                    Carbaryl

                    Carbofuran
Chemical Name
                         alpha-isomer of hexachloro-
                         cyclohexane

                         gamma-isomer of hexachloro-
                         cyclohexane

                         1,2,3,4,10,10-hexachloro-
                         1,4,4a,5,8,8a-hexahydro-
                         1,4-endo-exo-5,8-dimethano-
                         naphthalene

                         1,1-dichloro-2,2-bis (p-chloro-
                         phenyl)  ethylene

                         1,1,1-trichloro-2,2-bis (p-
                         chlorophenyl)  ethane

                         dodecachlorooctahydro-1,3,4-
                         metheno-2H-cyclobuta-(cd)
                         pentalene
                         methyl 3-hydroxy-alpha
                         crotonate,  dimethyl phosphate

                         0,0-diethyl 0- (2-isopropyl-6-
                         methy1-4-pyrimidiny1)
                         phosphorothioate

                         0,O-dimethyl-0-p-nitrophenyl
                         phosphorothioate
                         1-naphthyl-N-methylcarbamate

                         2,3-dihydro-2,2-dimethyl-7-
                         benzoruranylmethylcarbamate

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                Table 1.  Test Pesticides  (Cont'd)
Class
Common Name
Substitute Pesticides
                    Atrazine


                    Azodrin


                    Benomyl


                    Bromacil


                    CIPC


                    Diuron


                    2,4D

                    Kepone


                      "ft
                    Lasso


                    Propanil

                    Trifluralin
 Selected  Polychlorinated
 biphenyls
Chemical Name
                         2-chloro-4-(ethylamino)-6-
                         (isopropylamino)-5-triazine

                         dimethyl phosphate of 3-hydroxy-
                         N-methylcrotonamide

                         methyl 1-(butylcarbamoyl)-2-
                         benzimidazolecarbamate

                         5-bromo-3-sec-butyl-6-
                         methyluracil

                         isopropyl N-(3-chlorophenyl)
                         carbamate

                         3-(3,4-dichlorophenyl)-1 -
                         dimethylurea

                         2,4-dichlorophenoxyacetic acid

                         dechloro-octahydro-1,3,4-
                         metheno-2H-cyclobuta  (cd)=
                         pentalen-2-one

                         2-chloro-2',6'-diethyl-N-
                         (methoxy=methyl) acetanilide

                         3,4-dichloropropionanilide

                         a,a,a-trifluoro-2,6-dinitro
                         -N,N-dipropyl-p-toluidine

                         2,5,2'-trichlorobipheny1
                         2,6,2',6'-tetrachlorobipheny1
                         2,3,4,2',5'-pentachlorobipheny1
                         2,4,6,2',4',6'-hexachlorobipheny1
                         2,3,4,5,6,2',5'-heptachlorobipheny1
                     Aroclor 1016
                     Aroclor 1254
                                8

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     Figure 1 shows the measured amount of lindane lost from each tube
after 24 hours when 1 jug was initially deposited in each of three glass
tubes 4-mm O.D.; 1.0-, 2.0- and 5.0-cm long.  Figure 2 shows the loss of
DDE and p,p'-DDT with time when 1 Mg of each was placed on the end of
each of three pipe cleaners.  These tests were conducted in a laboratory
hood at room temperature to illustrate the principles involved.  On this
basis, it was decided to use a 1.0-cm length of 4-mm O.D. glass tubing
for a-BHC, lindane, and aldrin and the pipe cleaner for DDE, p,p'-DDT,
and mirex.  One pesticide solution (Mix A) was made to contain 100 ng//ul
each of a-BHC, lindane,  and aldrin.  Another pesticide solution (Mix B)
was made to contain 100 ng/jul each of DDE, p,p'-DDT, and mirex.  When
generating pesticide vapors, 10 /ul of Mix A was placed in the glass tube
and 10 j^l of Mix B was deposited on the tip of the pipe cleaner.  The
glass tube and pipe cleaner taken together constitute the "generator"
when held in place.  A metal ring with appropriate holes or a wire
properly bent to hold the glass tube and pipe cleaner can be used to hang
the generator at the proper site.  This serves to eliminate sorption at
undesired spots, which would result in a misleading data.
     The basic design for testing the various sorbents is shown schemati-
cally in Figure 3.  The legend is as follows:
     Adapter

     W-l

     Z-l
     W-2
     Z-2
     G
     W-3

     Z-3
Machined metal head for fastening 5-cm I.D. glass
pipe to high-volume sampler
Stainless steel screen wire to support material
in Z-l
Zone for coated glass beads or other test sorbent
Stainless steel screen wire to support solid
sorbents in Z-2 when C is employed
Flanged cup (2-cm deep by 7.6-cm diameter) for
holding solid test material            	
Zone created by use of C
Generator position
Stainless steel screen wire for support of solid
materials in Z-3.
Zone for solid sorbent as prefilter to clean
incoming air.

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   40
<#>
 0)
 M

•I 30
CN
 
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    FIGURE  2.   RATE  OF PESTICIDE LOSS  FROM PIPE CLEANER
                ORIGINALLY SPIKED WITH  1.0 pig OF EACH
                            PESTICIDE
<#>

1
Q)
H
U
CO
CO
3
     100
      90
     80
      70
      60
      50
     40
     30
     20
     10
                                                      DDT
                                                p,p'  DDE
                        8
                               12
                            Hours
16
20
24
                             11

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   FIGURE 3.  SCHEMATIC FOR PESTICIDE GENERATION AND COLLECTION
       5-cm(I.D.) x 10-cm long
            Glass Pipe      —
                                    Jn ^ y
5-cm(I.D.)x 10-cm(I.D.)
Glass Pipe Reducers
                                                 Z-3

                                                 W-3
                                                     Z-2
                                                     W-2
                                                 Z-1
                                 r.~r--i~-r<— w-i
                  Metal Adaptor
                               12

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          The test apparatus thus provided for filtration  of intake
air  (Z-3), generation of pesticides  (G), and evaluation  of sorbent
area  (Z-2 or Z-l).  Not shown are the Teflon and stainless steel
couplings for clamping the various pieces together.  Later these
couplings were replaced (except for the coupling to the  metal adapter)
by wrapping the glass-to-glass connections with polyethylene film to
make an air-tight seal.  The test apparatus evolved, to  some extent,
over the course of the program; for example, the first few tests  did
not provide for filtering the intake air, in which case  Z-3  was non-
existent.
     4.   Gas Chromatographic Analysis - Chlorinated Pesticides
          A Hewlett-Packard Model 5713A gas chromatograph  equipped
with an EC detector (Ni-63) was used for analysis of the chlorinated
pesticides.  A coiled glass column, 4-mm I.D. by 1.8-m length, packed
with 1.5% OV-17 + 1.95% OV-210 on 80/100 mesh Gas-Chrom Q was employed.
The carrier gas was 5% methane-95% argon at a flow rate of 60 ml/minute.
The temperature of the inlet port was 225°C; column, 200°C;  and
detector, 300 C.  All chromatographic measurements were based on peak
heights.
     5.   Recovery of Chlorinated Pesticides from Generators
          This test was performed to establish that the chlorinated
test pesticides could be quantitatively recovered from the glass tube
and from the pipe cleaner.  The procedure was to inject 10 Ml of Mix A
into a tube and into a 10-ml volumetric flask (labeled S) .  Ten jul of
Mix B was injected onto the top of a 2-cm length of pipe cleaner and
into the same volumetric flask (S) as Mix A.  After about 15 minutes,
the glass tube and the pipe cleaner were both placed in a clean 10-ml
volumetric flask containing 3-4 ml of pesticide grade n-hexane.  Residual
pesticides were washed from the tube in the following fashion:  a  5-ml
syringe equipped with a long (15-cm) needle was filled with hexane and
the needle then inserted into the glass tube and the residue washed
into the flask.   The flask was then shaken for a minute or so to remove
pesticides from the pipe cleaner.   The glass tube and pipe cleaner
remained in the flask, labeled G.   Ten /ul of internal standard solution
(100 ng//Jl DDD)  was injected into both volumetric flasks (S and G) which
                               13

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were then adjusted to final volume with hexane.  A 4 jul aliquot of
both standard  (flask S) and sample  (flask G) were chromatographed
and pesticide recovery data calculations were made based on  the
commonly used method of employing an  internal standard  (DDD).  This
procedure was repeated five times to  establish that a reliable recovery
of pesticides from the generator was  possible.   The results  of these
tests, shown in Table 2,  indicate essentially 100-percent  recovery.
All solvents used in this program were obtained  from Burdick and
Jackson Laboratories, Inc. as  distilled  in  glass and suitable for
pesticide analysis.
     6.   Sorption Media  Evaluation Procedure
          Evaluation of the various sorbent media was carried out  in
the following manner:
          a.   Procedure  for Evaluating  Coated Glass Beads
                (1)  Clamp the  lower glass reducer to the adapter
                    with  screen W-l in place  (see Figure 3).
                (2)  Place 140  ml of the  coated glass beads in Z-l
                     (supported by screen W-l).
                (3)  Inject 1 jug each  of  a-BHC, lindane, and aldrin
                     (10 Ml of  Mix A)  in  a piece  of 4-mm O.D. glass
                    tube  and  into each of two  10-ml volumetric flasks
                     (S  and SM) containing 3-4 ml hexane.   The S  flask
                    contains  the standard to be  used for collection
                    efficiency determinations.   The SM  flask content
                    is  processed like a  sample  (if necessary) to
                    determine  method  losses due  to acetonitrile parti-
                    tioning,  etc.
                (4)  Inject 1  fig each  of  DDE, p,p'-DDT and  mirex  (10 jul
                    of  Mix B)  into  the volumetric  flasks,  S and SM,  and
                    10 Ml Mix B on  tip of 2-cm piece of 2-mm pipe  cleaner.
                (5)  Suspend  the generator  from screen W-2.
                (6)  Place glass fiber mat on W-2 as a particulate  filter, or
                (7)  Suspend  the generator  from screen W-3  and place
                    vapor filter (polyurethane foam,  charcoal,  etc.)
                     and particulate filters in Z-3.
           b.    Procedure for Evaluating Solid Sorbents
                The procedure for solid sorbents was much the same  as
 for the coated glass  beads  except that solid sorbents were placed in
 zone Z-2 as well as in Zone  Z-l.   Also,  small particle-size solid
 sorbents require a glass filter mat placed on the screen supports at
 W-l and W-2.   The larger cross-sectional area of Z-2 results in less
 resistance to flow than Z-l for the same amount of solid sorbent.
                                  14

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TABLE 2.  PERCENT RECOVERY OF PESTICIDES
             FROM GENERATORS
 Test 1     Test 2     Test 3     Test 4     Test 5     Avg,
a-BHC
Lindane
Aldrin
DDE
p,p'-DDT
Mirex
105.3
105.0
104.3
97.5
103.8
101.2
103.4
103.1
103.8
101.5
103.3
99.7
101.7
101 .5
101.8
96.2
98.3
98.1
100.4
100.8
102.5
101 .2
103.0
103.0
101.7
101.8
101.5
100.9
100.6
99.3
102
102
103
99
102
100
                  15

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The generator and standards S and SM were prepared in exactly the same
manner as in the coated glass beads procedure.  The generator was
suspended from the screens at either W-2 or W-3, as appropriate.
     7.   Sampling
          When the sampling module had been set up as described for
either coated glass beads or solid sorbents, the sampler motor was
turned on, the air flow adjusted, and the sampler was then  allowed to
run 24 hours.
     8.   Sample Preparation

           (a)  The sampler motor was turned off after desired sampling
               time.
           (b)  The sampling module was carefully disassembled to enable
               recovery of generator.  The 4-mm O.D. generator tube
               and 2-cm length  of pipe cleaner were placed  in a 10-ml
               volumetric flask containing 3-4 ml of hexane.  This
               volumetric flask was  labeled G and was set aside with S.
           (c)  The test sorbent, which had been exposed to  the generated
               pesticide vapors , was placed in a thimble  (Whatman ,
               Cellulose, 43 x  123 mm, pre-extracted with pesticide
               grade  n-hexane)  for Soxhlet  (Kontes, size #23) extrac-
               tion and labeled CR.  An  equal amount of the unexposed
               test sorbent was placed in another thimble and the SM
               sample (amount of pesticides equal to that added to
               generator) quantitatively placed on  this sorbent.
           (d)  The thimbles were placed  in the Soxhlet  apparatus  and
               extracted  for at least ten cycles with hexane at a rate
               of  4-5 cycles/hour.
           (e)  The extracts were then concentrated  to  10 ml in Kuderna-
               Danish evaporative  concentrators.   If the CR sample
               showed need  for  Florisil  cleanup,  then  SM was subjected
               to  the same procedure.
           (f)  Ten Ml of 100 ng/jul p,p'DDD (internal standard)  in hexane
                was added to:

                     S-volumetric flask - which contained the standard
                     upon which all calculations were based,

                     SM-volumetric flask - which contained the sample
                     carried through the same extraction and cleanup
                     as the test sorbent so that recovery of each test
                     pesticide could be determined,

                     G-voluntetric flask - which contained the mixture
                     used to determine pesticide residue in the generator
                      (for calculation of loss of pesticides due to
                     evaporation GE) , and
                                16

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                    CR-volumetric flask - which contained the pesti-
                    cides collected (for determination of theoretical
                    recovery, TR) .
          (g)  All volumetric flasks were made up to 10 ml with hexane
               and shaken to mix the DDD internal standard.  The mixtures
               were then injected into the gas chromatograph.
     9.   Evaluation of Liquid Sorbents-Chlorinated Pesticides
          a.   Cottonseed Oil
               The cottonseed oil (Matheson Coleman Bell, refined)
furnished by EPA was cleaned up by several acetonitrile extractions of
90 ml of cottonseed oil in 200 ml of hexane.  After the last (6th)
extraction,  the cottonseed oil was recovered by evaporation of the hexane
in a rotary evaporator.  Three (3)  ml of the cottonseed oil was placed
on the bottom of a 500-ml Erlenmeyer flask.  The glass beads (140 ml,
3-mm diameter, Pyrex) were added.  The flask was rotated until all the
beads were evenly coated.
               After collecting pesticides, the coated glass beads were
transferred to a pre-extracted thimble and Soxhlet-extracted with hexane
for at least ten cycles.  An acetonitrile partition step was required to
separate the pesticides from the cottonseed oil, which was removed from
the beads along with the pesticides during extraction.  Acetonitrile
partitioning is a necessary but undesirable step in the overall method
for determination of the chlorinated pesticides in this sorbent.
               The first few tests using cottonseed oil as the sorbent
indicated that there would have to be some kind of pre-filter to remove
interfering compounds from the incoming air before it was passed over
the pesticide generator and then into the test sorbent.  The system
developed for cleaning the air was based on the placement of a poly-
urethane plug  (5 cm in height x 5 cm in diameter) in Z-3 and supported
by W-3.  On top of the polyurethane foam was placed 75-100 ml of
"Adsorbit," an activated charcoal (4-8 mesh, quality - 50 minutes)
manufactured by Barnebey-Cheney.  The pressure drop across the charcoal-
polyurethane foam pre-filter system was very small.  The plug of poly-
urethane foam will collapse if much small-particle solid sorbent  (Plorisil,
porous polymer beads, etc.) is placed on top of the foam.
                                17

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              • The collection efficiencies of test pesticides from
air by cottonseed oil are given in Table 3 for tests R-12-1 and R-12-8.
It would appear that the more volatile compounds are not recovered
completely.
          b.   DC-200
               DC-200 (12,500 cs) was coated on glass beads by mixing
3 ml of DC-200 with about an equal volume of hexane in an Erlenmeyer
flask.  As the Erlenmeyer was turned and rotated, the hexane slowly
evaporated leaving the beads coated with DC-200.  The DC-200 on glass
beads sorbent matrix was very difficult to load into the sampler as a
very sticky mass was left after the hexane evaporated.  Acetonitrile
partitioning again was required for recovery of the extracted pesticides.
Although the average temperature  for this test was lower than that for
cottonseed oil, recovery from DC-200  (R-13-1, R-13-8) was lower than
that for cottonseed oil; therefore, this sorbent was not a candidate
for further study.
          c.   DC-710
               An attempt was made to use DC-710 as a sorbent.  In
the preliminary testing, acetonitrile partitioning was not effective
and residual contamination  caused inactivation of the gas chromatographic
column, necessitating its replacement.
     10.  Evaluation of Solid Sorbents
          The  first solid sorbent investigated was polyurethane foam.
     For this  purpose, 5.5-cm diameter plugs of polyurethane foam were
cut by band saw from a piece of polyurethane foam 5-cra thick.  The plugs
were pre-extracted with hexane in a Soxhlet extractor  (size 23) since
this method had proved to be satisfactory for the polyurethane foam used
to support  the charcoal filter.   The  sorbent plug was fitted under slight
compression into  Z-l  (same  placement  as coated glass beads).  Charcoal
on polyurethane foam was used as  a pre-filter.  This test  (R-14-1) was
not  successful.   The ambient air temperature was too low and insufficient
pesticide  generation resulted.   The samplers were moved into the labora-
tory building, since outside temperatures expected during the ensuing
2-3  months would  be too low for  efficient pesticide vapor generation.
                                 18

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TABLE 3.  COLLECTION OF PESTICIDE VAPORS FROM AIR
Teat No.
R-12-1
R-12-8
R-13-1
R-13-8
R-14 '
R-15
R-16
R-17
R-18
R-19
R-ZO
R-Z1
R-ZZ
R-Z3
R-24
R-Z5
R-Z6
R-Z7
R-Z8
R-Z9
R-30
R-31
R-3Z
R-33
R-34
R-35
R-36
So r bent
Cottonseed oil
M
DC-200
it
Polyurethane
ii
M
ii
Cottonseed oil
DC-200
ABORTED
Chromosorb 102
Chromosorb 101
Chromosorb 102
Chromosorb 102
Chromosorb 101
Porapak-R
Tenax-GC
Porapak-R
Porapak-R
ABORTED
Chromosorb 101
Chromosorb 102
Porapak-R
Tenax-GC
Porapak-R
Polyurethane
Quantity
of
Sorbent
3ml
3ml
3ml
3ml
5x5cm
5x5 cm
5x5cm
5x5cm
3ml
3ml

40ml
40ml
40ml
20ml
20ml
20ml
20ml

20ml

80ml
80ml
80ml
80ml
80ml
5x5cm
Flow
Rate
Cl/min)
278
278
278
278
278
202
202
202
253
253

101
101
-76
101
101
101
126
101
101

177
177
114
177
177
227
% Collected
^-BHC Lindane Aldrin
30
40
3
7
54
41
3
3
14
Z
0
0
DDE
73
78
43
58
DDT
85
67
35
56
Mirex
82
57
39
67
Insufficient vaporization
Contamination
4
0
21
1
Motor burned
78
112
31
111
92
79
86
BLANK RUN
94

98
120
134
90-
89
12
67
6
40
8
out
90
124
68
97
83
76
88

90

88
121
120
106
100
80
48
4
6
28

12
145
12
43
55
31
0

47

102
154
84
134
165
59
101
71
65
34

30
132
62
98
66
88
72

84

91
96
89
103
95
103
247
66
41
45

22
45
41
87
41
85
88

79

94
106
100
80
88
77
161
75
54
89

22
38
63
96
167
96
170

93

91
136
—
33
80
98

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          The tests up to this time were run in duplicate with each
sampler having its own generating system.  With the samplers operated
indoors, it was decided that one sampler would be run without a
pesticide generator.  Ideally, the results of the system without the
generator when subtracted from the results of the system with the generator
would give the best overall pesticide recovery data.  This procedure was
initiated with R-15.
          Test R-15 deviated from the previous procedure in that
unactivated Plorisil  (F-100, for pesticide residue separations)-poly-
urethane was used for prefiltration of the intake air instead of the
charcoal-polyurethane combination.  The sampling arrangement for this
test was to put the polyurethane sorbent plug in Z-l, as before, and
Z-2 was created by placing a wire screen and glass filter mat on the
large end of the reducer held in place by the appropriate size stainless
steel and Teflon clamp.  The top part of the clamp was used as a receiver
for 200 ml of Florisil  as an air filter.
          The motors became quite hot during sampling and the next
morning there was an odor being emitted from the motors.  The poly-
urethane foam plugs were extracted.  The gas chromatographic analysis
of the  extract showed gross contamination.  A few days after run R-15,
instructions were received from the Project Officer to remove a condenser
from each sampler rabtor since it may give off vapors of polychlorinated
naphthalenes  (especially when hot).  The condensers were removed and R-16
was run exactly  as  R-15.  The results of R-16 were slightly better,
although there obviously was  interfering material which resulted in
generally poor results; the data still  indicated a large loss of the
more volatile compounds.  Test R-16 was run indoors using a polyurethane
plug as the  sorbent and charcoal-plus-polyurethane as the filter.  This
test confirmed the  earlier  indications  that the polyurethane plug is not
a good sorbent for  the  higher-volatility  compounds.  It also confirmed
that the  charcoal-polyurethane  filter system  is the best for the intended
purpose.   The  cottonseed  oil  (R-18)  and the DC-200  (R-19) were tested
indoors giving similar  data to  the outdoor tests  (R-12-1, R-12-8).  The
two sorbents are not satisfactory  for the more volatile compounds.
                                20

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          The samplers were moved back to the outdoor shed when better
prospects for warm weather existed and the evaluation of solid sorbents
proceeded.  The porous polymer beads, Chromosorb 101, Chromosorb 102,
Porapak-R, and Tenax-GC were Soxhlet-extracted with hexane preparatory
to evaluation.  The hexane extraction cleaned up the Tenax but not the
Chromosorb 101, 102, and Porapak-R.  The latter three were extracted
with distilled in glass benzene but still required more cleanup.  Soxhlet-
extraction with distilled in glass dichloromethane proved to be an
effective cleanup technique.
          The first attempt (R-20) to test porous polymer beads resulted
in a burned-out motor and the test was aborted.  The burned-out motor
was the result of insufficient air flow over the motor.
          Tests R-21 through R-27 were made by placing a known volume
(40 or 20 ml) of the porous polymer beads on a wire screen-supported
glass filter mat in Z-l.  The charcoal-polyurethane filter system was
in Z-3.  The air flow of 116 1/min was obtained using the bypass valve
so that it was at least half open.  By not closing the bypass valve more
than halfway, the motor gets ample cooling.  After collecting for 24 hours,
the beads were Soxhlet-extracted with hexane,  evaporated in a Kuderna-
Danish evaporator and injected into the chromatograph.
          The results of this series of tests  (R-21 through R-27) were
somewhat erratic.  It had been considered that the stainless steel and
Teflon clamp might not be making a good seal and/or the cracked rubber
of the clamps could be at fault.  A system without the clamps upstream
of the collecting medium was made by wrapping polyethylene film  (5 to 7-cm
wide) around the glass-to-glass connections.  The regular small clamp was
used to connect the small end of the glass reducer to the metal sample
inlet, since it is downstream and should have little effect on the results.
Test R-29 was made with Porapak-R in Z-l and the charcoal filter in Z-3
and the two glass-to-glass connections wrapped with polyethylene film.
The results of this test were encouraging.
          With the porous polymer beads and the supporting glass filter
mat in Z-l, the air sampling rate is decreased.  In an attempt to regain
                               21

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some of the lost sampling rate, a flanged cup was made for each
sampler.  The O.D. of the flange was made slightly smaller than
the O.D. of the large end of the glass reducer.  A neoprene gasket
was used to make a seal between the flange and the bottom glass
reducer.  The top glass reducer was left as a metal-to-glass connec-
tion.  The connection was then wrapped tightly with the polyethylene
film to make an airtight seal.  The cup itself is about 7.6 cm in
diameter and 2 cm deep, holding close to 80 ml of porous polymer
beads when the wire screen-supported glass filter mat is in place.
A short section of 5-cm I.D. glass pipe was connected to the small
end of the top reducer  (with screen wire between the two glass pieces)
by again wrapping the connection with polyethylene to make an air-
tight seal.
          Tests R-31 through R-35 were performed using the Z-2  (metal
cup) area for 80 ml of porous polymer beads and polyethylene seal
connections.  Test R-36 employed polyethylene seal connections with
the test polyurethane foam in Z-l.
     11.  Discussion of Collection Efficiency Results with SURC
          Sampling Module
          The results of the collection efficiency experiments using
basically the SURC collecting module with a variety of sorbents for
the chlorinated pesticides are shown in Table 3 above.  These data
are not very satisfactory for a number of reasons but do indicate
               i
that the solid sorbents may be better sorbents than the liquids tested.
Sample  cleanup is also  simplified with the solid sorbents since
acetonitrile partitioning is not required.
          The basic problem with the program at this point in time
was  the inability to change solid sorbents with only minimal changes
to  the  sampling  system.  It became apparent that the different sorbents
could be evaluated on  a good comparative basis only if a new sampling'
concept could be developed.
          During the course of the program, the EPA also determined
that the samplers were so designed that considerable recirculation of
air occurred.  That is, air leaving the vacuum motor was immediately
redrawn through  the system.  This was particularly bad during the
                                22

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program because the motors were being overworked and consequently
were running overly hot, which caused increased emissions of possible
interferences.
          Based on the results and problems of the first year's work,
it was recommended that a new collecting module concept be developed
that would enable the use of a variety of solid forms with only one
basic sampling procedure.
B.   Second Year's Work with SwRI Collecting Module
     1.   SwRI Collecting Module
          Based on the past experience with the SURC sampler, as
furnished to Southwest Research Institute by the Environmental Protection
Agency, the modifications to be made to the sampling module were based
on the following considerations:
          (1)  Capability of accepting liquid-coated glass beads,
               polyurethane foam, and small-size particulate
               matter such as 60 to 80-mesh porous polymer beads
               or other solids.
          (2)  Design of the cartridge type so as to permit the
               entire cartridge to be extracted, thus eliminating
               transfer of sorbent to other containers.
          (3)  Ease of keeping clean after cleaning.
          (4)  Ease of packing and mailing.
          (5)  Glass construction.
          All these considerations may not be necessary for evaluation
of various sorbents.  However, since the entire apparatus and procedure
would eventually have to be checked, the stated considerations helped
direct the development of the test apparatus to be used with the sampling
system.  It should be understood that the modifications affect only the
collection module of the SURC sampler for sampling purposes.
          The original thinking on the modification was to use a glass
Soxhlet thimble which could be used as the collector (with appropriate
sorbent) and could be Soxhlet-extracted to recover collected pesticides.
Holes in the glass near the top could, with help of spring-wire tongs,
be used as a means of moving the thimble when necessary without contami-
nating the glass surface.  For storage and shipping purposes, the thimble,
                               23

-------
with its contents, would be protected by placing it in an appropriate
container.  A size 24 Soxhlet extractor was chosen as the largest
that can be conveniently handled.  The diameter of the glass frit in
a size 24 thimble is approximately 50 mm.  It was soon discovered
that insufficient air flow could be pulled through this glass frit
by the air sampler pump.  The O.D. of the size 24 thimble is 57 mm.
Measurement showed, however, that the standard wall 64-inra O.D. Pyrex
glass tubing will fit in the size 24 Soxhlet.  Fritted glass thimbles
were made using the 64-mra O.D. tubing.  It was finally concluded that
the state-of-the-art for making glass frits was not advanced enough
to consistently permit the desired high air flow rates.  Satisfactory
flows can be obtained by using 100-mesh stainless steel cloth or a
thin compressed layer of glass wool instead of the fritted glass.
          The sample collector as now designed consists of the follow-
ing component parts:
          a.   Collector-extractor
                (1)  The collector-extractor is essentially a glass
Soxhlet  thimble with various modifications appropriate to considerations
of the solid sorbent.  The principal part of the collector-extractor
is a 150-mm length of standard 64-mm O.D. Pyrex glass tubing which may
have'O,  1, or 2 indentations  (internal rolled rims) to serve as internal
supports.  Figure .4 shows a collector-extractor with two  (2) internal
rolled rims and shows how the retaining screens are clamped to the rolled
rims.  This design is for porous polymer beads or other solids of similar
size.  It is not  necessary to disassemble the unit for extraction since
the entire unit can be placed in the Soxhlet extractor.  After extraction
the remaining solvent is evaporated and the collector-extractor is ready
for reuse.
                (2)  An  alternate design has only the one rolled rim at
the lower location.  With this design  the retaining screen is clamped
to the  top  side of the  rolled rim by a center screw which threads in a
clamping bar, which  locks against the  bottom side of the single rolled
rim.  Solid sorbent or  liquid-coated glass beads can be retained by
glass wool held in place by a spring arrangement.
                                24

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             FIGURE 4.  COLLECTOR-EXTRACTOR
                                o
                        64- x 150 -mm
                           Glass
                          Cylinder

                          (I.D. ~60 mm)
Retaining
Screens
                                                    Indentation
Sorbent
                             25

-------
               (3)  A plain glass cylinder  (no rolled rims) can be
used with polyurethane foam which makes a tight press-fit.
               (4)  Other modifications of the 64- x 150-mm tube
can be made as long as they allow placement of the tube in the Soxhlet
extractor.
          b.   Adapter
               With the SURC collecting module, a small platform was
used to provide a means of fastening the glass pipe reducer  (containing
the coated beads) to the high-volume air sampler.  This platform is
removed and the adapter shown in Figure 5 is fastened to the pipe
nipple.  As can be seen in Figure 5 the adapter is merely a thin-walled
aluminum cylinder in which the collector-extractor is placed when sampling.
The collector-extractor extends about 5 cm above the cylinder and the
aluminum-to-glass seal is made by wrapping with Teflon tape, followed
by polyethylene tape held tight with electrical tape.  Other sealing
arrangements would also be satisfactory.
          c.   Filter Holder
               The filter holder as shown in Figure 5 was fabricated
from a commercially available 4"  (10-cm) filter holder  (Curtin Matheson
Scientific, Inc., Beltsville, Maryland, Cat. No. 090-027) and adapted
to make another "wrap" seal connection to the collector-extractor.  A
flanged aluminum  cylinder was also fabricated to seal against the glass
                   .t
fiber filter and  provide a container for the granular charcoal used to
clean the incoming air.  This charcoal pre-filter would not be used in
actual ambient air sampling.
     2.   Test Pesticides and Related Compounds
          Additional test pesticides and related materials and compounds
were added  to  the original list of chlorinated pesticides, organophosphate
pesticides, and carbamate pesticides.  The  additional materials and
compounds to be tested were as follows:
          Aroclor 1016
          Aroclor 1254
          2,5,2'-trichlorobiphenyl
          2,6,2',6'-tetrachlorobipheny1
          2,3,4,2',5'-pentachlorobiphenyl
          2,4,6,2',4',6'-hexachlorobipheny1
          2,3,4,5,6,2',51-heptachlorobiphenyl
                                 26

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FIGURE 5.  SAMPLING MODULE
              Charcoal
                Filter
                                -Filter Holder
                              Collector-Extractor
• 1
1
r
i
i
i
i
i
L - -T
1
^B
1
1
f
1
|
1
1
1
1
T 	 I
1






,


I* 	 1/2" Pipe Nipple
               27

-------
          Time permitting, as many as possible of the following substi-
tute pesticides were to be tested.
          Atrazine       CIPC         Lasso
          Azodrine       Diuron       Propanil
          Benomyl        2,4D         Trifluralin
          Bromacil       Kepone
     3.   Pesticide Generation
          The method of pesticide generation previously described and
as used in the first year's work performed well but was changed to a
simpler system for the remainder of the work.  One solution containing
known amounts of each compound or material was made for each series of
tests.  A known amount of this solution was placed on a small piece of
glass fiber filter.  This piece of glass fiber filter  (generator) was
placed on a wire screen over the collector-extractor just before the
filter holder was put in position and the sampler started.
          This change in generator was made to simplify and shorten
generator preparation time and to ensure more complete volatilization
of the test pesticides.
     4.   Gas Chromatographic Analysis
          A Hewlett-Packard Model 5713A gas chromatograph equipped with
an EC detector  (Ni-63) was used for most of the work.  A coiled glass
column, 4-mm  (I.D.) by 1.8-m in length, packed with 1.5% OV-17 + 1.95%
OV-210 on 80/100 mesh Gas Chrom Q, was used.  The carrier gas was 5%
methane-95% argon at a flow rate of 60-ml/minute.  The inlet temperature
was  225°C and the detector temperature was 300°C.  The column temperature
varied from 160 C to 200  C depending on what group of compounds was being
analyzed.  This same instrument with a stainless steel 1/8" x 50-cm column of
10%  UC-W98 on 80/100 mesh Chromosorb W was used  for the work with the
substitute pesticides.
          The 10% UC-W98  column in a Tracer MT-220 gas chromatograph
equipped with a Hall Electrolytic Conductivity Detector  (Model 310) was
used for analysis of the  two carbamates, carbaryl and  carbofuran.  Two
other  columns that were reported  to perform well with  carbaryl were not
found  to be satisfactory.  The 10% UC-W98 column, purchased from Hewlett-
Packard, worked well with both carbamates and because  of this was also
used with the substitute  pesticides.  All chromatographic recovery data wds
based  on peak height comparison of each peak with the  corresponding peak
                                 28

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height in the standard sample; i.e., external standardization.
     5.   Other Equipment Changes
          For this part of the work, two  (2) high-volume  samplers  of
improved design were received from EPA.  These improvements were in
the design of the sampling system  (exclusive of the collecting module)
and the flow measuring devices.  The system capabilities  were unchanged;
therefore, engineering changes will not be discussed further in this
report.  The system is described by Lewis, et al*.
          It was recommended that ducts be provided to direct the  hot
exit air from the motors away from the sample intake.  This was
accomplished by adapting a commercially available home dryer duct
to each motor which carried .exit gas away from the samplers.
     6.   Sorbents to be Evaluated
          a.   Polyurethane Foam
               The polyurethane foam was obtained locally from the
manufacturer (Foam Products of San Antonio, Inc.).  It was identified
as an open-cell polyether-type #1545 polyurethane foam.  Two foam
plugs 7.0-cm diameter x 7.6-cm in length were cut and each was compressed
(about 14%) to fit into a single indentation (with screen wire) 6.0-cm
I.D. collector-extractor tube.  They were initially prepared by Soxhlet-
extracting for 16 hours with 5% diethylether in hexane.   These same  two
polyurethane plugs were used throughout the remainder of the project.
          b.   Tenax-GC
               Tenax-GC, 35/60 mesh, was obtained from Applied Science
Laboratories, Inc., State College, Pennsylvania.   The fines were removed
by passing high velocity air through a bed of the Tenax.  Two traps  of
the two-rim type (Figure 4)  were prepared with 40fml each of the Tenax-GC.
They were initially conditioned by Soxhlet-extracting for 16 hours with
hexane.  These same two traps were used throughout the remainder of  the
project.
* R. G. Lewis, A.r R.. Brown and M. D. Jackson, "Evaluation of Polyurethane
  Foam for' Sampling of Pesticides, Polychlorinated Biphenyls, and
  Polychlorinated Naphthalenes in Ambient Air, Anal. Chem. . 40.  (10),
  in press, September, 1977.
                                29

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          c.   Chromes-orb 102
               Chromosorb 102, 20/30 mesh, was obtained from Johns-
Manville, Denver, Colorado.  This larger particle-size Chromosorb 102
permitted the higher air flows required by the program.  Two traps of
the one-rim type were made with 50 ml each of the Chromosorb 102.
They were initially prepared by Soxhlet-extraction for 16 hours with
5% ethyl ether in hexane.  These same two traps were used throughout
the remainder of the project.
     7.   Sorbent Evaluation Procedure
          The pesticide generator was prepared by placing a known amount
of pesticide  (or other material) on a small piece of glass fiber filter
mat which in turn was placed on a screen supported by the top edge of
glass collector.  The system  (Figure 5), when in use for testing,
performed in the following manner:  Air was pulled through the char-
coal bed (125 ml) at a measured rate to eliminate or reduce volatile
air contaminants and then through a 10-cm diameter glass fiber filter
to remove particulate matter.  The precleaned air was next passed over
the pesticide generator where the vaporized pesticide  (or other mater-
ials) was introduced into the airstream.  The air was then immediately
passed through the test sorbent.
            •>         '
          Af'ter the test period  (24 hours), the generator strip was
placed in 10 ml hexane in a volumetric  flask to recover any nonvolatilized
test material.  The collector-extractor was placed in  a Soxhlet and
extracted for 4 hours at 10-12 minutes  per cycle.  Pure hexane was used
to extract  the Tenax-GC and 5% ethyl ether in hexane was used to extract
both the polyurethane foam and the Chromosorb 102.  The polyurethane foam
was compressed about 70% while being extracted.  A screen wire was placed
on top of the foam and the foam compressed between this screen and the
screen already in place.  A   spring wire held the foam in the compressed
state during extraction.  The extract from the test sorbent  (about 600 ml)
was concentrated to 10 ml in  a Kuderna-Danish evaporator.  The samples
were chromatographed without  further cleanup.  Recovery data were based
on the percent recovered relative to that which was lost from the
generator.  The  actual amounts recovered or  left on the generator were

                                 30

-------
determined by peak height comparison to standards prepared at the same
time as the generator.  That is, the standard represented 100% recovery.
     8.   Sorbent Evaluations
          a.   Chlorinated Pesticides
               Average collection efficiencies for the chlorinated
pesticides by the test sorbents are summarized in Table 4.  A chroma-
togram of the standard chlorinated pesticide mixture is shown in
Figure 6.  Detailed data sheets for each of the tests with the chlori-
nated pesticides series are given in Appendix I.
               The chlorinated pesticides used were a-BHC, lindane,
aldrin, p,p'-DDE, p,p'-DDT, and mirex.  One microgram (1 Mg) of each
was deposited on the generator.  Complete vaporization of pesticides
resulted in most cases, with the exception of mirex.
               The collection efficiencies for all test pesticides were
generally high with Tenax-GC and Chromosorb 102.  Collection of a-BHC
and aldrin was poor for the polyurethane foam plug.
          b.   Mixed polychlorinated biphenyls (PCB's)
               Collection efficiency data for the synthetic mixture of
PCB's are summarized in Table 5.  A chromatogram of the standard mixture
is presented in Figure 7.  Detailed data sheets for each of the tests
in the series are contained in Appendix II.
               The PCB's used were:
               B3   2,5,2'-trichlorobiphenyl
               B4   2,6,2',6'-tetrachlorobipheny1
               B5   2,3,4,2',5'-pentachlorobipheny1
               B6   2,4,6,2',4' ,6'-hexachlorobipheny1
               B7   2,3,4,5,6,2',5'-heptachlorobipheny1
               One microgram (1 jig) of each was deposited on the generator.
Vaporization of all compounds  was complete.  Collection efficiencies for
all PCB's were good with Tenax-GC and Chromosorb 102.  Collection of
2,5,2'-trichlorobiphenyl (B3)  was poor with polyurethane foam.
          c.   Aroclor 1016
               Averaged data for the collection of several components of
Aroclor 1016 by the solid sorbents are summarized in Table 6.  Selected
dominant GC peaks were monitored for calculation of collection efficiencies.
                                31

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                                              -TABLE 4.   CHLORINATED PESTICIDES
10
Test
R-68
R-81A
R-81B
R-69
R-70
Sorbent
Poly-U
ii
ii
Chr amo- 102
Tenax
o
Temperature C
Max. Min.
31
30
30
31
32
25
25
25
26
28
Sampling
Rate
1/min
280
280
280
258
245
a-BHC
44
25
25
97
84
Lin.
—
86
89
88
84
% Collected
Aid. DDE
58
27
34
83
85
—
103
132
91
80
DDT
86
102
100
90
87
Mir.
83
105
100
87
88

-------
FIGURE 6.
GAS CHROMA TOGRAM OF CHLORINATED

      PESTICIDES STANDARD

Column:   1.5% OV-17/1.95% QF-1 at 200°C

Detector:  Nickel-63 Electron Capture, Pulsed Mode
                     W
                     Q
                     P
                      i
                      ex
         U
         K
         ffi
          i
          cJ
            .3
              Ur—'
                                                X
                                                0)
       0
                     12       16
               Minute s
20
                                                       24
                         33

-------
                                           TABLE  5.   SYNTHETIC PCB MIXTURE
10
•P-
Test
R-76
R-75
R-74
Sorbent
Poly-U
Chromo-102
Tenax
o
Temperature . C
Max. Min.
30 25
29 27
28 25
Sampling
Rate
1/min
280
253
253
B3
30
108
107
B4
90
121
124
% Collected
B6
99
102
97
B5
103
109
103
B7
96
106
94
     KEY:        B3  =   2,5,2'-trichlorobiphenyl
                 B4  =   2,6,2',6'-tetrachlorobiphenyl
                 B5  =   2,3,4,2', 5'-pentachlorobipheny1
                 B6  =   2,4,6,2',4',61-hexachlorobipheny1
                 B7  =   2,3,4,5,6,2',5'-heptachlorobiphenyl

-------
FIGURE 7.  GAS CHROMA TOGRAM OF MIXED PCB STANDARD

           1.5% OV-17/1. 95% QF-1  at 200°C
           Nickel-63 Electron Capture Detector,  Pulsed Mode
                B6
                                      B7
       0
12
16
20
                     Minute s
                          35

-------
                                                   TABLE 6.   AROCLOR 1016
CO
Test
R-77
R-78
R-80
o
Temperature c
Sorbent Max. Man.
Poly-U 29 24
Chromo-102 30 25
Tenax 31 27
Sampling
Rate
1/min
280
253
265
% Collected, by Component
A B C D E
7fl 66 111 116 111
107 102 99 100 100
99 104 99 94 98

-------
A chromatogram of the Aroclor 1016 standard is given in Figure  8.
Detailed data sheets for each test of the series are contained  in
Appendix III.
               Since Aroclor 1016 is a complex mixture, various peaks
in the chromatogram were given identification letters  (A,B,C,D,E) for
test purposes.  Ten micrograms (10 jzg) of Aroclor 1016 was deposited
on the generator.  Vaporization of all components monitored was complete.
The collection efficiencies for all monitored compounds were good with
Tenax-GC and Chromosorb 102.  Collection recovery of components A and
B were less than desirable with the polyurethane foam.
          d.   Aroclor 1254
               Average collection efficiency data for various components
of Aroclor 1254 are given in Table 7.  Selected dominant GC peaks were
monitored for recovery calculations.  A chromatogram of the Aroclor 1254
standard is given in Figure 9.  Detailed data sheets for each test of
the series are given in Appendix IV.
               Aroclor 1254, like Aroclor 1016, is a complex mixture
and various peaks on the gas chromatogram were given identification
numbers (1,2,3,4,5,6,7) for test purposes.  Ten micrograms (10 jzg) of
Aroclor 1254 was deposited on the generator.  Vaporization of all
monitored components was complete except for 5, 6, and 7 on R-73, for
which 10% or less remained on the generator.  The collection of all
monitored components appears to be good for all test sorbents, including
polyurethane foam.
          e.   Organophosphate Pesticides
               Average collection efficiency values for the test
organophosphate pesticides are presented in Table 8.  A chromatogram
of the organophosphate pesticide standard mixture is given in Figure 10.
Detailed data sheets for each test of the series are contained in
Appendix V.
               The organophosphate pesticides used were mevinphos,
Diazinon, and methyl parathion.  Quantities placed on the vapor generator
were 10 ng mevinphos, 3 pig Diazinon, and 1 /zg methyl parathion.  Complete
vaporization of all pesticides occurred in all tests.

                                37

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FIGURE 8.  GAS CHROMA TOGRAM OF AROCLOR 1016
            1.5% OV-17/1.95% QF-1 at 160°C
            Nickel-63 Detector,  Pulsed Mode
            Letters designate peaks used for determination
               of collection efficiencies.
   0
     12
Minut e s
16
20
24
                            38

-------
                                                   TABLE 7.   AROCLOR 1254
U)
vo
Test
R-73
R-71
R-72
Sampling
Temperature C Rate
Sorbent Max. Min. 1/min
Poiy-U 30
', Chromo-102 32
Tenax 29
21 285
27 260
16 258
% Collection, by Component
1 2 3 4567
151 105 120 103 102 100 102
181 105 115 99 94 96 99
159 111 127 111 102 100 101

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FIGURE 9.  GAS CHROMA TOGRAM OF AROCLOR 1254 STANDARD
            1.5% OV-17/1.95% QF-1 at 190°C
            Nickel-63 Electron Capture Detector, Pulsed Mode
             Numerals indicate peaks used to calculate collection
                efficiencies.
  0
8       12
   Minute s
16
20
24
                           40

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                                                TABLE  8.   PHOSPHATE PESTICIDES
•is-
t-1
Test
96A
96B
V
97A
97B
98A
98B
Sorbent
Chromo 102
Chromo 102
Poly U
Poly U
Tenax GC
Tenax GC
Temperature
Max.
26
26 —
27
27
27
27
°C
Min.
18
18
17
17
18
18
Sampling
Rate
1/min
v 240
240
240
240
240
240
Mevinphos
92
94
92
98
108
102
% Collected
Diazinon
94
94
103
107
96
91
Et . Parathion
95
89
95
96
97
97

-------
FIGURE 10.
GAS CHROMA TOGRAM OF PHOSPHATES
     PESTICIDES STANDARD

1.5% OV-17/1.95% QF-1 at 185°C
Detector:  Electron Capture, Ni-63,  Pulsed Mode
                    Mevinphos
                              Methyl Parathion
                            4       8
                           Minute s
                               12
                           42

-------
               Collection of all test organophosphates by all test
sorbents  (Tenax, Chromosorb 102, and polyurethane foam) was good.
          f.   Carbamate Pesticides
               Average values for the collection of the test carbamate
pesticides are summarized in Table 9.  A chromatogram of the carbamate
standard is given in Figure 11.  Detailed data sheets for each test
of the series are presented in Appendix VI.
               The carbamates used were carbofuran and carbaryl.  Since
the sensitivity of the electrolytic conductivity detector varied, ethyl
parathion was added to serve as an internal standard.  The amount of
each pesticide placed on the generator was 20 pg of carbofuran, 40 fig
of carbaryl, and 40 /ug of ethyl parathion.  Vaporization of the carbamates
and ethyl parathion was 90-100% complete.
               The collection efficiencies of both carbofuran and carbaryl
were very poor for all test sorbents.  Collection of ethyl parathion
was good for all test sorbents, which indicated satisfactory detector
and sampler performance.  Recoveries of the carbamates when placed
directly on the test sorbent were good, suggesting essentially no loss
on extraction; therefore, the indicated low collection efficiencies were
assumed to be real.
          g.   Substitute Pesticides
               There was insufficient time to evaluate all the substitute
pesticides suggested by the Project Officer.   Average collection
efficiency data for those which were evaluated are summarized in Table 10.
A chromatogram of the substitute pesticides standard is shown in Figure 12.
Detailed data sheets for each test of the series are contained in
Appendix VII.
               The substitute pesticides used were CIPC, trifluralin,
atrazine, and Lasso.  The amounts of each placed on the vapor generator
were:  CIPC 100 ng, trifluralin 0.60 ng, atrazine 40.0 /zg and Lasso
2.00 Mg.  Atrazine vaporized only to the extent of about 50%,  while the
other compounds were essentially quantitatively vaporized.
               The collection of all the substitute pesticides evaluated
was good on Tenax GC and Chromosorb 102.  Trifluralin was poorly trapped
by polyurethane foam, although collection efficiency was good for other
substitute pesticides.
                                43

-------
TABLE 9.  CARBAMATE PESTICIDES
Test
™i
102A' .,!
102B
I .
103A
103B
104A
104B
Sorbent
Poly U
Poly U
Chromo 102
Chromo 102
Tenax GC
Tenax GC
o
Temperature C
Max. Min.
32
32
35
35
32
32
20
20
17
17
15
15
Sampling
Rate
1/min
240
240
240
240
240
240
Carbofuran
20
21
5
9
8
12
% Collected
Carbaryl
15
14
6
18
3
7
Et Parathion
98
86
78
92
77
85

-------
FIGURE 11.  GAS CHROMA TOGRAM OF CARBAMATE STANDARD

             10% UC-W98 at 160°C (SS,  1/8" x 50-cm)
             Detector:  Hall Electrolytic Conductivity, Reductive
                       Mode, 800°C.
                        Carbofuran
                  Ethyl
                Parathion
                      4
•*•
                      M inut e s
                           45

-------
                                             TABLE 10.  SUBSTITUTE PESTICIDES
ON
Test
105A
107A
105B
107B
106A
106B
Sorbent
Poly U
Poly U
Chromo 102
Chrorao 102
Ten ax GC
Tenax GC
Temperature
Max.
24
26
24
26
24
24
°C
Min.
21
19
21
19
21
21
Sampling
Rate
1/min
240
240
240
240
240
240
CIPC
86
92
93
89
94
87
% Collected
Trifluralin Atrazine
22
8
88
85
92
93
88
104
81
107
80
93
Lasso
—
108
100
99
109
104

-------
FIGURE 12.
GAS CHROMA TQGRAM OF SUBSTITUTE
    PESTICIDES STANDARD
       10% UC-W98 (SS 55-1/8" x 50-cm)
       Temperature programmed from 150° to 170°C
         at 40°C/min.  Electron Capture Detector,
         Ni-63, Pulsed Mode.
                       4        8
                       Minute s
                           12
                          47

-------
C.   Field Testing
     1.   Ambient Air Sampling
          Two samplers equipped wilih SwRI sampling modules were used
for this outdoor study.  The sampling procedure was essentially the
same as that previously stated, except that there was no pesticide
generation and charcoal was not nomally used as a pre-filter.  The glass
fiber particulate filter was employed, however.  The running tine was
shortened to 22 hours to allow for turn-around time from one day's
sampling to another.  The sampling rate was always 240 liters per minute
regardless of the sorbent being used.  Each sampling day two different
sorbents were evaluated.  On one day  (R-115) only, one of two samplers
in which Tenax GC was being used was provided with a charcoal pre-filter
in addition to the glass fiber filter.  Figure 13 shows the two
chromatograms obtained from these two samples; that in, they represent
ambient air vs charcoal-cleaned air.  In one test (R-113, Tenax + S),
the pesticides listed were generated at the 2.0 ng/m  level.  The
results of this  test are presented in Table 11 along with those from an
unspiked ambient air sample  (R-113, Tenax) collected simultaneously.
           Table  12  lists the pertinent sample and climatological data
for  the field,tests  made during the last month of the program.  Apparent
air  concentrations  of  six  organochlorine pesticides are  also  listed.
These analyses were by electron capture gas chromatography, with no
attempt to confirm results.  No particular problems were encountered
during the field test  phase  of the program.
      2.    Sample Preparation and Chromatography
           Extraction and concentration of ambient  air samples were carried
«put in the same manner as  for the sorbent comparison  testing.   In  addition,
 a simple  alumina cleanup was used to remove non-pesticidal  residues.
 The approximately 10-ml sample from the Kuderna-Danish Evaporator was
 further concentrated to about 3 ml under a gentle stream of nitrogen.
                                 48

-------
FIGURE 13.  GAS CHROMA TOGR AM OF MATERIAL COLLECTED
             FROM AMBIENT AIR VS. CHARCOAL-FILTERED AIR
             Column:  4-mm(id) x 183-cm glass,  1.5% OV-17/1.95%
                      QF-1 at 200°C.
             Detector: Ni-63 ECD,  Pulsed Mode
                             A - Ambient Air
                             B - Charcoal-Filtered Air
   0
8       12
  Minut e s
16
20
                          49

-------
        TABLE 11.   FIELD TEST OF TENAX GC WITH AND WITHOUT
                       GENERATED PESTICIDES
GC Retention
 Time (min)
Pesticide
Ambient Air
Level (ppt)
   Measured Air Level
     With Pesticides
Introduced at 2 ppt (ppt)
   1.86

   2.33

   3.47

   7.27

  13.25

  20.02
a-BHC

Lindane

Aldrin

p,p'-DDE

p,p'-DDT

Mirex
   3.91

   0.84

   0.89

   0.35

   0.29

   0.03
         5.45

         2.48

         1.84

         2.28

         2.44

         1.93
                                  50

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                                      TABLE 12.  AMBIENT AIR SAMPLES


Test #
108A
108B
109A
109B
110A
11 OB
111A
111B
112A
113A
113B
114A
114B
115A
115B
116A
116B
117A
117B
118A
118B
119A
11 9B
120A
120B
121A
121B
122A
122B
123A
123B
124A
124B
125A
125B
126A
126B
Date
Taken
(start)
5-24-77
5-24-77
5-25-77
5-25-77
5-26-77
5-26-77
5-30-77
5-30-77
5-31-77
6-1-77
6-1-77
6-2-77
6-2-77
6-6-77
6-6-77
6-7-77
6-7-77
6-8-77
6-8-77
6-9-77
6-9-77
6-13-77
6-13-77
6-14-77
6-14-77
6-15-77
6-15-77
6-16-77
6-16-77
6-20-77
6-20-77
6-21-77
6-21-77
6-22-77
6-22-77
6-23-77
6-23-77
          Sorbent

          Tenax
          Chromosorb 102
          Polyurethane
          Chromosorb 102
          Polyurethane
          Tenax
          Tenax
          Chromosorb 102
          Polyurethane
          Tenax
          Tenax + S
          Chromosorb 102
          Polyurethane
          Tenax(charcoal)
          Tenax
          Polyurethane
          Chromosorb 102
          Chromosorb 102
          Polyurethane
          Tenax
          Polyurethane
          Tenax
          Chromosorb 102
          Chromosorb 102
          Polyurethane
          Polyurethane
          Tenax
          Tenax
          Chromosorb 102
          Chromosorb 102
          Polyurethane
          Tenax
          Polyurethane
          Chromosorb 102
          Tenax
          Chromosorb 102
          Polyurethane
 *  +2 ng/m  (2 ppt)  spike
**  Charcoal-filtered air
Temp.
Max
34
34
34
34
35
35
36
36
39
38
38
39
39
39
39
42
42
40
40
38
38
40
40
39
39
39
39
38
38
37
37
36
36
36
36
29
29
°C
Min
19
19
21
21
20
20
22
22
18
19
19
20
20
19
19
18
18
21
21
20
20
21
21
22
22
23
23
23
23
25
25
22
22
21
21
21
21
Humidity % a-BHC
Start Finish (ng/m )
71
71
97
97
80
80
95
95
100
80
80
80
80
94
94
56
56
66
66
65
65
61
61
64
64
64
64
73
x 73
82
82
78
78
85
85
100
100
99
99
97
97
94
94
100
100
91
99
99
90
90
85
85
75
75
96
96
96
96
85
85
94
94
94
94
94
94
95
95
95
95
100
100
100
100
1.30
1.26
0.74
1.23
0.89
1.26
1.86
2.09
1.84
3.91
*5.45
3.02
2.21
**0.03
3.13
2.65
2.56
3.49
1.91
2.07
1.35
1.75
1.88
1.92
1.39
0.75
1.66
0.86
0.96
0.81
0.43
0.86
0.58
1.32
1.27
1.38
0.80
Lindane
(ng/ni )
0.29
0.26
2.08
2.41
0.46
0.53
1.08
1.18
0.79
0.84
2.48
1.06
1.23
0.02
2.05
0.84
0.87
1.08
1 .00
0.78
1.35
0.83
0.89
0.66
0.77
0.84
1.47
0.89
1.14
0.61
0.62
0.89
0.75
0.89
0.81
0.30
0.29
Aldrin
(ng/m )
0.03
ND
0.06
0.03
0.06
0.02
0.02
0.02
0.12
0.89
1.84
0.16
0.26
0.02
0.32
1.97
1.91
0.05
0.30
0.02
0.15
ND
0.04
0.12
0.14
0.29
0.02
0.09
0.04
ND
0.08
0.03
0.05
0.02
ND
ND
0.08
p.p'-^DE
(ng/m )
0.32
0.35
0.50
0.57
0.52
0.59
0.49
0.65
0.33
0.35
2.28
0.39
0.52
ND
0.25
0.06
0.09
0.43
0.66
0.22
0.71
0.31
0.41
0.30
0.44
0.68
0.58
0.60
0.78
0.48
0.57
0.59
0.67
0.67
0.68
0.55
0.46
p.P'-gDT
(ng/m )
0.25
0.26
0.26
0.28
0.29
0.30
0.32
0.38
0.32
0.29
2.44
0.26
0.39
ND
0.26
0.34
0.32
0.37
0.38
0.30
0.63
0.26
0.45
0.28
0.37
0.40
0.45
0.28
0.31
0.43
O.b1
0.39
0.47
0.50
0.40
0.51
0.51
Mirtx,
(ng/m >
0.02
C.C2
0.02
C.03
0.03
0.04
ND
ND
0.03
0.03
1.93
0.03
0.06
ND
ND
ND
ND
ND
ND
ND
ND
0.03
0.02
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND

-------
The concentrate was then cleaned up by the method of Bidleman and
Olney*.  The sample was again made up to 10 ml for injection onto
the chromatographic column.  The samples were analyzed on a 4-mm I.D.
x 182-cm column of 1.5% OV-17/1.95% QF-1 at 200°C using an electron
capture detector.
     3.   Field Study Data
          A newly installed Hewlett-Packard 3354A Laboratory Data
System was available for this last stage of the program.  A method
was prepared using the chlorinated pesticide standard for calibration
purposes.  All unnamed peaks in the program were assigned the same
response factor as aldrin; that is, the data contained in the column
labeled PPT  (parts-per-trillion) on the computer print-out  (Appendix
VIII) was based on the assumption that the electron capture detector
has the same sensitivity to all unnamed peaks as it does to aldrin.
If a peak occurred within a time bracket assigned to a certain pesti-
cide, that peak was labeled as being the assigned pesticide.  Proof
of identity was beyond the scope of work of this program.
          No extensive evaluation of the field test will be attempted.
It will suffice to say at this time that the chlorinated pesticides
can readily be detected at the 1 ng/m  level.  The bulk of the field
               »
tests indicate 'possible airborne pesticides at the low-to-fractional
ng/m  level.  All of the print-out sheets from the field test study
are included in Appendix VIII of this report.
 * Bidleman,  T.  F.  and Olney,  C.  E.,  Bull.  Environ,  Contain,  and Toxicol.,
   11,  442-450,  1974.
                                 52

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                    APPENDIX I




CHLORINATED PESTICIDES - COLLECTION EFFICIENCY DATA
                        53

-------
         R-68
                       Sorbent  Polyurethane foam
         Sampler No.   6
                       Filter GF + C
         Start:
                       Finish:
         Date
1/25/77
Date    1/26/77
         Flow
 280  g/min.
Flow
280
8/min.
Time

Temp.
Press.
Humidity
Amount Put
on Generator
Pesticide jug
Chlorinated
a-BHC 1.00,
Lindane 1.00
Aldrin 1 . 00
DDE 1.00
Mirex 1.00
8: 45 A.M.
Max.
27 °C 31°c
749 mm
30 %
Residue
on Generator
m

0.0
0.0
0.0
0.0
0. 18
Time 8:4
Min.
25°c Temp
Press.
Humidity
Amount
Generated
M9

1.00
1.00
1.00
1.0
0.82
t5 A.IW;

29 "C
744 mm
34 %
Amount
Recovered %
jug Recovery

0. 44 44
—
0. 66 66
0.92 92
0. 68 83
'GF + C = Glass Fiber + Charcoal
                                      54

-------
R- 69
Sampler No. 6
Start:
Date 1/26/77
Flow 2 60 e/min.
Time 9: 15 A.M.
Max.
Temp. 29 °C 31 °C
Press. 743 mm
Humidity 34 %
Amount Put Residue
on Generator on Generator
Pesticide /jg jug
Chlorinated
a-BHC 1.00 0.0
Lindane 1.00 0.0
Aldrin 1.00 0.0
DDE 1.00 0.0
DDT 1.00 . 0.0
Mirex 1. 00 0. 10
Sorbent Chromosorb 102
Filter GF
Finish:
Date
Flow
Time
Min.
26°C Temp
Press.
Humidity
Amount
Generated
M9
1.00
1.00
1.00
1.00
1.00
0. 90
+ c

1/27/77
255 C/min.
9: 15 A.M.
30 °c
738 mm
%
Amount
Recovered
m
0.97
0.88
0. 83
0.91
0.90
0.78









%
Recovery
97
88
83
91
90
87
55

-------












Pesticide
R- 70
Sampler No. 6
Start:
Date 1/27/77
Flow 25° 8/min.
Time 9: 30 A.M.
Max.
Temp. 29 °C 32 °C
Press. 738 mm
Humidity 37 %
Amount Put Residue
on Generator on Generator
M9 M9
Sorbent
Filter
Finish:
Date
Flow
Time
Min.
28°C Temp
Press.
Humidity
Amount
Generated
M9
Tenax
GF + C

1/28/77
240 2/min.
9: 30 A.M.

32 °C
738 mm
34 %
Amount
Recovered
M9











%
Recovery
Chlorinated
a-BHC
Lindane
Aldrin
DDE
DDT
Mir ex
1.00 0.0
1.00* 0.0
1.00 0.0
1.00 0.0
1.00 0.0
1.00 0.04
1.00
1.00
1.00
1.00
1.00
0.96
0.84
0.84
0.85
0.89
0.88
0.84
84
84
85
89
88
88
56

-------
R-  81A
Sorbent   Polyurethane Foam
Sampler No. 6
Start:
Date 2/28/77
Flow 280 2/min.
Time 2:00 A.M.
Max.
Temp. 28 "C 30 °C
Press. 749 mm
Humidity 26 %
Amount Put Residue
on Generator on Generator
Pesticide jug M9
Chlorinated
a-BHC 1..00 0.00
Lindane 1.00 0.00
Aldrin 1.00 0.00
DDE 1.00 0.00
DDT 1.00 0.00
Mirex 1.00 0.00
Filter
Finish:
Date
Flow
Time
Min.
25 °C Temp
Press.
Humidity
Amount
Generated
1.00
1.00
1.00
1.00
1.00
1.00
GF + C

3/1/77
275 2/min.
1:00 A.M.
29 °C
747 rnm
35 %
Amount
Recovered
M9
0.25
0.86
0.27
1.03
1.02
1.05







Recovery
25
86
27
103
102
105
                          57

-------
R- 8 IB
Sampler No. 4
Start: '
Date 2/28/77
Flow 280 K/min.
Time 2:00 A.M.
Max.
Temp. ' 28 °C 30°C
Press. 749 mm
Humidity 26 %
Amount Put Residue
on Generator on Generator
Pesticide jug jug
Chlorinated
a-BHC 1.00 * - 0.0
Lindane 1.00 0.0
Aldrin 1.00 0.0
DDE 1.00 0.0
DDT 1.00 0.0
Mir ex 1.00 : 0.0
Sorbent
Filter
Finish:
Date
Flow
Time
Min.
25°C Temp
Press.
Humidity
Amount
Generated
Mg

1.00
1.00
1.00
1.00
1.00
1.00
Polyur ethane
GF + C

3/1/77
280 S/mi
1:00 A.M

29 °C
747 mm
35 %
Amount
Recovered
M9

0.25
0.89
0.34
--
1.00
1.00
Foam



n.
.





%
Recovery

25
89
34
-
100
100
58

-------
                    APPENDIX II




SYNTHETIC PCB MIXTURE - COLLECTION EFFICIENCY DATA
                       59

-------
R- 74
Sampler No.    6
Start:
Date     2/9/77
Flow
255
Time     8:30

Temp.    2 6

Press.     751

Humidity 34
                            Sorbent   Tenax

                            Filter  QF + C

                            Finish:
8/min.
                             Date
Flow
           A.M.              Time
                 Max.   Min.
                           2/10/77
250
                           8:30
£/min.
                                                          A.M.
                 28°C 25°C Temp     26
           mm
                             Press.
                           748
                                      mm
                             Humidity  42
Pesticide
Amount Put Residue
on Generator on Generator
jug M9
Amount
Generated
M9
Amount
Recovered %
pig Recove
Mixed PCB
B3
B4
B6
B5
B7
1.
1.
1.
1.
1.
00 0.0
> • -r,-<
00 " 0.0
00 0.0
00 0.0
00 0.0
1.00
1.00
1.00
1.00
1.00
1.
1.
0.
1.
0.
07
24
97
03
94
107
124
97
103
94
                               60

-------
R-  75

Sampler No.  6

Start:

Date     2/10/77
                             Sorbent  Chromosorb 102
                             Filter    GF + C
                             Finish:
Flow
255
C/min.
                             Date      2/11/77
Flow     250
Time     9: 10

Temp.    27
           A.M.              Time     9: 10
                 Max.   Min.
           °C    29 °C 27 °C Temp     27
2/min.

A.M.

°C
Press. 748
mm
Humidity 42 %
Pesticide
Mixed PCB
B3
B4
B6
B5
B7
Amount Put
on Generator
1.00
1.00
1.00
1.00
1.00
Residue
on Generator
M9
0.0
0.0
0.0
0.0
0.0
Press.
Humidity
Amount
Generated
1.00
1.00
1.00
1.00
1.00
743 mm
50 %
Amount
Recovered
M9
1.08
1.21
1.02
1.09
1.06


Recovi
108
121
102
109
106
                             61

-------
          R- 76

          Sampler No.  6
                                Sorbent  Polyur ethane Foam

                                Filter   GF + C
          Start:
          Date
           Flow
    2/11/77
    280
          Time     9:25

          Temp.    27

          Press.     743

          Humidity 50
             Amount Put
             on Generator
Pesticide           M9
Mixed PCS

B3

B4

B6


B5
B7
1.00

1.00

1.00

1.00

1.00
e/min.
                                               Finish:
                 Date
                                               Flow
2/12/77
                                           280
         £/min.
A.M.
Max.
°C 30°C
mm
%
Residue
on Generator
M9
0.0
0.0
0.0
0.0
0.0
Time
Min.
25C Temp
Press.
Humidity
Amount
Generated
M9
1.00
1.00
1.00
1.00
1.00
9:25 A.M.
28 °c
746 mm
40 %
Amount
Recovered %
jug Recovery
0.30 30
0.90 90
0.99 99
1.03 103
0.96 96
                                      62 •

-------
              APPENDIX IV




AROCLOR 1254 - COLLECTION EFFICIENCY DATA
                   67

-------
R- 71
Sampler No. 6
Start: '
Date 2/1/77
Flow 262
Time 8: 40
Temp. 28 '
Press. 751
Humidity 32
Amount Put
on Generator
Pesticide jug
Arodor 1254
1 10.0
2 10.0
3 10.0
4 10.0
5 10.0
6 10.0
7 10.0
Sorbent
Filter
Finish:
Date
£/min. Flow
A.M. Time
Max. Min.
"C 32 °C 27 °C Temp
mm Press.
% Humidity
Residue Amount
on Generator Generated
M9 jug
0.0 10.0
0.0 10.0
0.0 10.0
0.0 10,0
0.0 10.0
0.0 10.0
0.0 10.0
Chromes orb 102
GF + C

2/2/77
258 fi/min.
8: 30 A.M.
29 °C
745 mm
35 %
Amount
Recovered
18.0
10.5
11.5
9.9
9.4
9.6
10.0







Recovery
180
105
115
99
94
96
100
68

-------
R- 78
Sorbent  Chromosorb 102







Pesticide
Aroclor
A
B
C
D
E
Sampler No. 6
Start:
Date 2/17/77
Flow 255
Time 8:45
Temp. 26
Press. 749
Humidity 33
Amount Put
on Generator
M9
1016
10.0
10.0
10.0
10.0
10.0
Filter GF + C
Finish:
Date 2/18/77
g/min. Flow 250 2/min.
A.M. Time 8:45 A.M.
Max. Min.
°C 30 °C 25°C Temp 27 °C
mm Press. 745 rnrn
% Humidity 40 %
Residue Amount Amount
on Generator Generated Recovered
M9 M9 M9
0.0 10.0 10.7
0.0 10.0 10.0
0.0 10.0 9.9
0.0 10.0 10.0
0.0 10.0 10.0







%
Recovery
107
100
99
100
100
                           65

-------
R-80

Sampler No.  6

Start:
                            Sorbent    Tenax

                            Filter   GF + C

                            Finish:
Date
Flow
2/23/77
265
Time      8:45

Temp.     28
Press.
738
Humidity   30
£/min.
Date

Flow
           A.M.              Time
                 Max.   Min.
           °C   31 °C  27°C Temp
2/24/77

265      2/min.

8:45     A.M.

28        °C
                    mm
                  Press.
          741
                                                mm
                             Humidity  25
Pesticide
Aroclor
A
B
C
D
E
Amount Put
on Generator
1016
10.
10.
10.
10.
10.
o-
0
0
0
0
Residue
on Generator
0.
0.
0.
0.
0.
0
0
0
0
0
Amount
Generated
M9
10.
10.
10.
10.
10.
0
0
0
0
0
Amount
Recovered %
M9 Recover
9.
10.
9.
9.
9.
9
4
9
4
8
99
104
99
94
98
                             66

-------
              APPENDIX IV




AROCLOR 1254 - COLLECTION EFFICIENCY DATA
                   67

-------
R- 71
Sorbent    Chromosorb 102







Pesticide
Arodor
1
2
3
4
5
6
7
Sampler No. 6
Start: '
Date 2/1/77
Flow 262
Time 8:40
Temp. 28
Press. 751
Humidity 32
Amount Put
on Generator
M9
1254
10.0
*
10.0
10.0
10.0
10.0
10.0
10.0
Filter QF + C
Finish:
Date
fi/min. Flow
A.M. Time
Max. Min.
°C 32 °C 27 °C Temp
mm Press.
% Humidity
Residue Amount
on Generator Generated
M9 M9
^0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0

2/2/77
258 fi/min.
8: 30 A.M.
29 °C
745 mm
35 %
Amount
Recovered
M9
18.0
10.5
11.5
9.9
9.4
9.6
10.0






%
Recovery
180
105
115
99
94
96
100
                            68

-------












Pesticide
A r odor
1
2
3
4
5
6
7
R- 72
Sampler No. 6
Start:
Date 2/2/77
Flow 260
Time 8: 50
"
Temp. 28
Press. 745
Humidity 35
Amount Put
on Generator
M9
1254
10.0
10.0
10.0
10.0
10.0
10.0
10.0
Sorbent
Filter
Finish:
Date
2/min. Flow
A.M. Time
Max. Min.
°C 29°C 26°C Temp
mm Press.
% Humidity
Residue Amount
on Generator Generated
M9 M9

0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0
0.0 10.0
Tenax
GF + C

2/3/77
255 2/min.
8:50 A.M.

27 °C
744 mm
40 %
Amount
Recovered
M9

15.9
11. 1
12.7
11. 1
10.2
10.0
10. 1











%
Recovery

159
111
127
111
102
100
101
69

-------
R- 73




Sampler No.   6




Start:
Sorbent  Polyurethane Foam




Filter  GF + C





Finish:





Pesticide
Aroclor
1
2
3
4
5
6
7
Date 2/3/77
Flow 280
Time 9: 05
Temp. -27
Press. 744
Humidity 40
Amount Put
on Generator
M9
1254
10.0 ,
10.0
10.0
10.0
10.0
10.0
10.0

£/min.
A.M.
Max.
°C 31 °C
mm
%
Residue
on Generator
0.0
0.0
0.0
0.0
0.40
0.70
1.00
Date
Flow
Time
Min.
21°C Temp
Press.
Humidity
Amount
Generated
M9
10.0
10.0
10.0
10.0
9.6
9.3
9.0
2/4/77
280 fi/min.
9:05 A.M.
22 °C
748 mm
32 %
Amount
Recovered
M9
15. 1
10.5
12.0
12.0
9.6
9.5
9.0





Recovery
151
105
120
120
100
102
100
                                70

-------
                      APPENDIX V





ORGANOPHOSPHATE PESTICIDES - COLLECTION EFFICIENCY DATA

-------
R- 96A




Sampler No.   6
Sorbent   Chromosorb 102
Filter    GF + C
Start: '
Date 4/12/77
Flow 240
Time 9: 20
Temp. • 24
Press. 749
Humidity 70
Amount Put
on Generator
Pesticide M9
Phosphates
Mevinphos 10.Q
Diazinon 3. 0
Me Parathion 1. 00
Finish:
Date
2/min. Flow
A.M. Time
Max. Min.
°C 26°C 18°C Temp
mm Press.
% Humidity
Residue Amount
on Generator Generated
M9 M9

0.0 10.0
0.0 3.0
0.0 1.00

4/13/77
240 £/min.
8: 20 A.M.
20 °C
748 mm
97 %
Amount
Recovered
M9

9.2
2.8
0.95






%
Recovery

92
94
95
                              72

-------
R- 96B

Sampler No.   4

Start:

Date      4/12/77

Flow      240

Time      9:20

Temp.     24
                  Sorbent   Chromosorb 102
                  Filter GF + C
2/min.
Finish:

Date

Flow
A.M.               Time
      Max.   Min.
°C    26°C  18°C  Temp
4/13/77

240    8/min.

8:20  A.M.

20     °C
Press.
Humidity
749'
70
Amount Put
on Generator
Pesticide (ig
Phosphates
Mevinpho s 10.
Diazinon 3.
Me Parathion 1.

0
0
00
mm
%
Residue
on Generator
M9

0.0
0.0
0.0
Press.
Humidity
Amount
Generated

10.0
3.0
1.00
748 mm
97 %
Amount
Recovered

9.4
2.8
0.89


Recovery

94
94
89
         73

-------
R-97A




Sampler No.   6




Start:
Sorbent Polyurethane Foam




Filter   QF + C
Finish:
Date
Flow
Time
Temp.
Press.
Humidity
4/13/77
280 ft/mm.
9:40 A.M.
Max.
22 °C 27°C
748 mm
97 %
Amount Put Residue
on Generator on Generator
Pesticide /ig /jg
Phosphates
Mevinphos 10
Diaz in on 3
Me Parathion 1

.0 0.0
. 0 0.0
.00 0.0
Date
Flow
Time
Min.
17°C Temp
Press.
Humidity
Amount
Generated
Mg

10.0
3.0
1.00
4/14/77
280 a/mm.
8: 40 A.M.
20 °C
742 mm
99 %
Amount
Recovered
M9

9-2
3. 1
0.95





Recovery

92
103
95
                             74

-------
            R- 96B


            Sampler No.   4


            Start:


            Date     4/12/77


            Flow     240


           Time     9:20


           Temp.     24


           Press.     749


           Humidity  70
             Amount Put
             on Generator
Pesticide           /ig

Phosphates


Mevinphos     10. 0

Diazinon        3.0

Me Parathion   1. 00
Sorbent  Chromes orb 102
Filter GF + C
Finish:
Date
2/min. Flow
A.M. Time
Max. Min.
°C 26°C 18°C Temp
mm Press.
% Humidity
Residue Amount
on Generator Generated
M9 M9
0.0 10.0
0.0 3.0
0.0 1.00

4/13/77
240 C/min.
8:20 A.M.
20 °c
748 mm
97 %
Amount
Recovered
M9
9.4
2.8
0.89






%
Recovery
94
94
89
                                     73

-------
Pesticide
Phosphates
Diazinon
97A
npler No. 6
lit:
te 4/13/77
aw 280 8/min.
me 9:40 A.M.
Max.
>mp. -22 °C 27°c
ess. 748 mm
jmidity 97 %
Amount Put Residue
on Generator on Generator
M9 M9
t
••k
10.0 0.0
>
3.0 0.0
Lou 1.00 0.0
Sorbent Polyurethane Foam
Filter QJ
Finish:
Date
Flow
Time
Min.
17°C Temp
Press.
Humidity
Amount
Generated
M9
10.0
3.0
1.00
' + C

4/14/77
280 e/min-
8: 40 A.M.
20 °C
742 mm
99 %
Amount
Recovered
M9
9.2
3. 1
0.95







%
Recovei
92
103
95
                                     74

-------
R-97B

Sampler No.  4

Start:

Date      4/13/77
                                               Sorbent   Polyurethane Foam
Flow
                   Z80
           Time     9:40

           Temp.    22
Pesticide
Phosphates
Diaz in on
                   2/min.
Filter

Finish:

Date
 V
Flow
                                                       GF + C
                   A.M.              Time
                         Max.   Min.
                   °C    27°C  17°C  Temp
4/14/77

280    B/min.

8:40  A.M.

20     °C
3ss. 748
jmidity 97
Amount Put
on Generator
M9
10.0
3.0
an 1.00
mm
%
Residue
on Generator
M9
0.0
0.0
0.0
Press.
Humidity
Amount
Generated
M9
10.0
3.0
1.00
742 mm
99 %
Amount
Recovered
M9
9.8
3.2
0.96



%
Recove
98
107
96
                                        75

-------
Pesticide
Phosphates
Diaz in on
98A
npler No.
rt: ,
te
)W
ne
mp.
!SS.
imidity

6

4/14/77
240 2/min.
9:25 A.M.
Max.
20 °C 27 °C
742 mm
98 %
Amount Put Residue
on Generator on Generator
jug MQ
10.
3.
m 1.
0 0.0
* V
0 0.0
00 0.0
Sorbent
Filter
Finish:
Date
Flow
Time
Min.
18°C Temp
Press.
Humidity
Amount
Generated
M9
10.0
3.0
1.00
Tenax
GF + C

4/15/77
240 2/min.
9:45 A.M.
20 °C
740 mm
100 %
Amount
Recovered
M9
10.8
2.9
0.97








%
Recove
108
96
97
                                       76

-------
R-98B




Sampler No.  4




Start:
Sorbent   Tenax
Filter   GF + C
Finish:
Date
Flow
Time
Temp.
Press.
Humidity
4/14/77
240 2/min.
9. 25 A.M.
Max.
20 °C 27°c
742 mm
98 %
Amount Put Residue
on Generator on Generator
Pesticide M9 ^9
Phosphates
Mevinphos 10
Diaz in on 3
Me Parathion 1

.0 0.0
.0 0.0
.00 0.0
Date
Flow
Time
Min.
1§C Temp
Press.
Humidity
Amount
Generated
M9

10.0
3.0
1.00
4/15/77
240 £/min'
9:45 A-M-
V
20 c
740 mm
100 %
Amount
Recovered
1^9

10.2
2.7
0.97





%
Recovery

102
91
97
                                 77

-------
                   APPENDIX VI




CAKBAMATE PESTICIDES - COLLECTION EFFICIENCY DATA
                       78

-------
R- 102A

Sampler No.   6

Start:
Date
Flow
5/3/77
240
Time     9; 55

Temp.    24

Press.     744

Humidity  92
                             Sorbent  Polyurethane Foam
                             Filter    GF + C
C/min.
Finish:

Date

Flow
           A.M.               Time
                 Max.   Min.
           °C    32°C  20 °C  Temp
           mm
                             Press.
                             Humidity
5/4/77

240   2/min.

9:00  A.M.

24     °C

742   mm

95     %
Amount Put Residue
on Generator on Generator
Pesticide ^g p.g
Carbamates
Carbofuran 20.00 0.6
Carbaryl 40.00 2.5
Et Parathion 40.00 0.0
Amount Amount
Generated Recovered %
jug jug Reco
19.4 3.9 20
37.5 5.8 15
40.0 39.2 98
                             79

-------
         R-102B

         Sampler No.   4

         Start:

         Date      5/3/77

         Flow     240

         Time     9:55

         Temp.    22

         Press.    744

          Humidity  92


            Amount Put
            on Generator
Pesticide          M9

Carbamates

Carbofuran    20.0
                     >
Carbaryl       40.0

Et Parathion  40.  0
Sorbent      Polyur ethane Foam



2/min.
A.M.
Max.
°c °c
mm
%
Residue
on Generator
P9
1.3
5.4
0.8
Filter
Finish:
Date
Flow
Time
Min.
°C Temp
Press.
Humidity
Amount
Generated
M9
18.7
34.6
39.2
GF + C

5/4/77
240 2/min
9:00 A.M.
24 °C
742 mm
95 %
Amount
Recovered
M9
3.9
5
33.7
                          Recovery



                           21

                           14

                           86
                                      80

-------
                                      Sorbent   Chromosorb 102
Sampler No.  6

Start:

Date     5/10/77

Flow     240        C/min.
                                      Filter    GF + C
Time     11:00

Temp.    31
Press.
         740
Humidity  65
                                      Finish:

                                      Date

                                      Flow
                    A.M.              Time
                          Max.   Min.
                    °C    35°C 17 °C Temp
                    mm
Press.
                                      Humidity
5/11/77

240   2/min.

9:30  A.M.

21     °C

740   mm

93     %
Amount Put Residue
on Generator on Generator
Pesticide jug jug
Carbamates
Carbofuran 20.0 0.0
Garbaryl 40.0 0.0
Et Parathion 40.0 0.0
Amount Amount
Generated Recovered %
jug ng Recovery
20.0 0.9 5
40.0 2.2 6
40.0 31.0 78
                              81

-------
R-  103B




Sampler No.





Start:
Sorbent   Chromosorb 102
Filter     GF + C
Finish:
Date
Flow
Time
Temp.
Press.
Humidity
5/10/77
240
11:00
31
740
65
Amount Put
on Generator
Pesticide M9
Carbamates
Carbofuran 20
Carbaryl 40
Et Parathion 40
.0
. 0 "
.0

g/min.
A.M.
Max.
°C 35 °C
mm
%
Residue
on Generator
0.0
0.0
0.0
Date
Flow
Time
Min.
17 °C Temp
Press.
Humidity
Amount
Generated
M9
20.0
40.0
40.0
5/11/77
240 2/min.
9: 30 A.M.
21 °C
740 mm
93 %
Amount
Recovered
M9
1.8
7.2
36.8





Recovery
9
18
92
                              82  .

-------
R- 104A
Sampler No
Start:
Date
Flow
Time
Temp.
Press.
Humidity

. 6

5/11/77
229 2/min-
10:00 A.M.
Max.
21 °C 32 °C
742 mm
91 %
Amount Put Residue
on Generator on Generator
Pesticide /ug M9
Carbamates
Carbofuran
Carbaryl
Et Parathion
20.0 0.4
40.0 2.4
40.0 0.8
Sorbent
Filter
Finish:
Date
Flow
Time
Min.
15°C Temp
Press.
Humidity
Amount
Generated
M9
19.6
37. 6
39.2
Tenax
GF + C

5/12/7
--
8:20
20
747
81
Amount
Recovered
M9
1. 6
1.2
30
                              e/min.





                              A.M.





                              °C
                                     Recovery
                                        8




                                        3




                                      77
83

-------
R-104B
Sampler No.
Start: ,
Date
Flow
Time
Temp.
Press.
Humidity

4

2/11/77
229 £/min.
10:00 A.M.
Max.
21 °C 32°C
742 mm
91 %
Amount Put Residue
on Generator on Generator
Pesticide jug /ug
Carbamates

Carbofuran 20.0 0.3
Carbaryl 40.0 0.4
Et Par.athion 40. 0 0.9
Sorbent
Filter
Finish:
Date
Flow
Time
Min.
15°C Temp
Press.
Humidity
Amount
Generated
19.7
39. 6
39. 1
Tenax
GF + C

5/12/77
£/min.
8:20 A.M.
20 °C
747 mm
81 %
Amount
Recovered %
Hg Recovery
2.4 12
2.7 7
33.4 85
84

-------
                   APPENDIX VII




SUBSTITUTE PESTICIDES - COLLECTION EFFICIENCY DATA
                           85

-------
R- 105A




Sampler No.   6





Start:





Date    5/16/77




Flow   280
                 Sorbent      Polyur ethane Foam




                 Filter     GF + C
2/min.
                 Finish:
                 Date
Flow
            5/17/77
280    fi/min.



Pesticide
Time 10:00
Temp. 22
Press. 743
Humidity100
Amount Put
on Generator
M9
A.M.
Max.
°C 24°C
mm
%
Residue
on Generator
M9
Time
Min.
21°C Temp
Press.
Humidity
Amount
Generated
9:00 A.M.
22 °C
743 mm
97 %
Amount
Recovered
M9



Recovery
New Pesticides
CIPC
100
Trifluralin 0.60*
Atrazine
Lasso
40.0
2.00
0.0
0.0
19.5
0.20
100
0. 60
20.5
1.80
86
0. 13
18.0
•• M
86
22
88
• M
                            86

-------
R- 105B
Sorbent    Chromosorb 102
Sampler No
Start:
Date
Flow
Time
Temp.
Press.
Humidity
4

5/16/77
280 C/min.
10:00 A.M.
Max.
•>•> °r -» A°r
22 ^ 24 °
743 mm
100 %
Amount Put Residue
on Generator on Generator
Pesticide jug ng
New Pesticides
CIPC 100
Trifluralin 0.
Atrazine 40.
Lasso 2.
0.0
60 0.0
0 24.0
00 0.24
Filter
Finish:
Date
Flow
Time
Min.
21°C Temp
Press.
Humidity
Amount
Generated
100
0. 60
16.0
1.76
GF + C

5/17/77
280 2/min.
9:00 A.M.
22 °C
743 mm
97 %
Amount
Recovered
M9
92. 6
0. 53
13.0
1.76







Recovery
93
88
81
100
                          87

-------
R- 106A

Sampler No.  6

Start:   >

Date     5/17/77

Flow     255       8/min.
                 Sorbent   Tenax

                 Filter    GF + C
                 Finish:

                 Date

                 Flow
 Time      9:35

 Temp.     24
A.M.              Time
      Max.   Min.
"C    24 °C  21°C Temp
5/18/77

255     fi/min.

8:35    A.M.

         "C
Press. 743 mm
Humidity 96 %
Amount Put Residue
on Generator on Generator
Pesticide M9 **9
New Pesticides
CIPC 100 t 1.7
Trifluralin 0.60 0.0
Atrazine 40.0 • 18.6
Lasso 2.00 0.35
*
Press. f« rnm
Humidity 97 %
Amount Amount
Generated Recovered
jug m

98.3 92.0
0.60 0.55
21.4 17.1
1.65 1.8


%
Recove

94
92
80
109
                                88

-------
R- 10 6B
Sampler No
Start:
Date
Flow
Time
Temp.
Press.
Humidity

. 4

5/17/77
255 C/min.
9: 35 A.M.
Max.
24 °C °C
743 mm
96 %
Amount Put Residue
on Generator on Generator
Pesticide jug jug
New Pesticides
CIPC 100
Trifluralin 0.
Atrazine 40.
Lasso 2.
0.0
60 0.0
0 21.0
00 0.20
Sorbent
Filter
Finish:
Date
Flow
Time
Min.
°C Temp
Press.
Humidity
Amount
Generated
M9
100
V
0. 60
19.0
1. 80
Tenax
GF + C

5/18/77
255 2/min.
8:35 A.M.
"C
743 mm
97 %
Amount
Recovered %
pig Recovery
87 87
0.56 93
17. 6 93
1.88 104
89

-------
R-107A
Sorbent   Polyurethane Foam







Pesticide
Sampler No. 6
Start: ,
Date 5/18/77
Flow 280 C/min.
Time 9: 10 A.M.
Max.
Temp. 2.4 °C 26°C
Press. 743 mm
Humidity 97 %
Amount Put Residue
on Generator on Generator
M9 M9
Filter C
Finish:
Date
Flow
Time
Min.
19°C Temp
Press.
Humidity
Amount
Generated
M9
JF + C

5/19/77
280 K/min.
8: 10 A.M.
21 °C
742 mm
99 %
Amount
Recovered







"A
Reco
New Pesticides
CIPC
100 0.0
Trifluralin 0.60 0.0
Atrazine
Lasso
40.0 16.3
2.00 0.08
100
0.60
23.7
1.92
92.3
0.05
24.7
2.08
92
8
104
108
                           90

-------
R- 107B
Sorbent   Chromosorb 102







Pesticide
Sampler No. 4
Start:
Date 5/18/77
Flow 255 2/min.
Time 9: 10 A.M.
Max.
Temp. 24 °C 26 "C
Press. 743 mm
Humidity 97 %
Amount Put Residue
on Generator on Generator
M9 M9
Filter
Finish:
Date
Flow
Time
Min.
19°C Temp
Press.
Humidity
Amount
Generated
M9
GF + C

5/19/77
255 2/min.
8: 10 A.M.
21 °C
742 mm
99 %
Amount
Recovered %
p.g Reco
New Pesticides
CIPC
100 0.0
Trifluralin 0.60 0.0
Atrazine
Lasso
40.0 19.3
2.00 0.08
100
0. 60
r' 20.7
1.92
89.0 89
0.51 85
22.2 107
1.90 99
                         91

-------
            APPENDIX VIII




FIELD STUDY DATA - COMPUTER PRINT-OUTS
                  92

-------
REPORT:    23-51   CHANNEL: 24                   6' 1 -5X0VI7/1.95%QF1 200




SAMPLE: R108TENAX     INJECTED AT   14:32:32 ON MAY 26* 1977




ESTD METHOD:  PEST






ACTUAL RUN TIME:   25-017 MINUTES
   RT
AREA
PPT
NAME
1.10
1.34
l.~58
US 7
2-34
2." 61
2.84
3-16
3-49
3.83
4.20
5.28
5.60
6.11
7.30
7. "9 4
10.19
10.81
13.31
20.13
24850 TT
4796 TV
15288 VV
106901 W
19583 VV
13666 W
45014 W
11452 W
2162 W
9634 VV
7843 VT
15651 TV
43161 W
37736 W
24091 W
4824 W
6030 W
5542 W
13141 BV
1457 VB
.522
• 101
• 321
1.297
• 278
.287
• 945
.241
• 031
.202
• 165
• 329
1.011
-792
• 316
.101
.127
• 116
• 249
.021



&BHC A
&LIN



&ALD





&DDE



fiPP DDT
4MIREK
                                 93

-------
REPORT:    24.41   CHANNEL:  24                   6*  1.5ZOV17/1.95ZQF1 200




SAMPLE: R108CHROM010  INJECTED AT  15:00:56 ON  MAY 26*  1977




ESTD METHOD: PEST






ACTUAL RUN TIME:   25*017 MINUTES




BL > 10 MV
   RT
AREA
PPT
NAME
1.09
1.33
1.42
1.57
l."75
1.86
2.33
2-59
2. 8 3
3-14
3-86
4.23
5-26
5.57
6.08
7-26
10.14
10.76
13.26
20.03
25779 TT
7168 TV
4861 W
17383 W
14887 W
104003 VV
18106 W
16112 W
49673 W
8926 VV
10281 W
7940 W
16738 VV
51148 VV*
41187 W
26443 VV
6368 W
5744 VV
13880 W
1579 VB
• 541
• 151
.'102
.365
.313
1.262
.257
.338
1 .043
.187
.216
.167
.353
1 .074
.865
• 347
= 134
• 121
.263
.023





&BHC A
&LIN








&DDE


fiPP DDT
&1IREX
                                 94

-------
REPORT*      2.51   CHANNEL: 24                    6f  1 • 5%0VI 7/1.95ZQF1  200




SAMPLE: R109POLY  U    INJECTED AT   10:54:32 ON JUN   I*  1977




ESTD METHOD:  PEST






ACTUAL RUN  TIME:   25*008 MINUTES
   RT
AREA
PPT
NAME
1.05
1.61
1-77
1-90
2.38
2.63
2.88
3.21
3.54
3.95
4-20
5.36
5-69
5-92
6.27
7.42
8.07
9.25
10.36
10.98
11.65
13*54
20.57
8265
58900
7844
67260
160990
8037
19959
11609
4350
6932
7909
17398
27966
13016
50635
41287
7522
5440
6934
5230
6697
14706
1129
VV
VV
W
VV
VV
W
W
W
VV
W
VV
W
VV
W
VV
VV
VV
VV
VV
VV
VV
VV
VB
.174
1.237
• 165
• 740
2.082
.163
.419
• 244
.057
.146
.166
• 365
• 587
.273
1.063
.502
.158
• 114
.146
• 110
• 141
.257
.015



&BHC A
&LIW



&ALD






&DDE





&PP DDT
&MIREX
                                95

-------
REPORT:     3*61   CHANNEL:  24                   6*  1 • 520V17/1.95XQF1 200

SAMPLE: R109CHROM102  INJECTED AT  12:45:20 ON  JUN  I,  1977

ESTD METHOD: PEST


ACTUAL RUN TIME:   25*017 MINUTES

BL > 10 MV
ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.05
1.61
1.79
1.90
2. '39
2." 64
2. '89
3. '22
3. "55
3.95
4. '33
5.* 38
5. '70
5. '9 3
6.26
7-43
8.05
9.27
10.37
10. '99
11. '66
13.56
20.55
31153 BV
68504 W
17753 W
112161 W
186366 W
13771 W
21700 W
10845 W
2588 W
7169 VV
7171 W
16051 W
29089 W*
12822 W
46157 W
46763 W
6612 VV
5251 VV
7265 W
5303 W
6897 VV
16197 VV
2368 VB
.654
1 .439
.373
1 .234
2.411
.289
.456
.228
• 034
.151
.151
• 337
.611
• 269
.'969
.563
• 139
.'110
-153
^111
.145
.283
.031



&BHC A
&LIN



6ALD






&DDE





gPP DDT
£4 1 REX
                                96

-------
REPORT:     4-21   CHANNEL:  24                   6f  1 -5X0 VI 7/1.95SQF1  200




SAMPLE: R110POLV  U    INJECTED AT  13:55:47  ON  JUN  1«  1977




ESTD METHODS PEST






ACTUAL RUN TIME:   25-000 MINUTES




ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.04
1.58
1.75
1-88
2.36
2.62
2. '8 6
3.18
3.51
3.92
4.17
5.32
5.65
5.87
6." 17
7. '3 6
8.01
9.18
10.28
10.90
11.56
13.42
20.34
5662
37127
8712
80493
35172
10435
29562
11700
4438
8232
9469
19712
32661
14072
43512
43070
8821
6822
7390
5954
7676
16355
2035
BV
W
W
VV
W
W
W
VV
W
VV
W
VV
W
W
W
VV
W
VV
W
W
VV
W
VB
.119
.'780
• 183
.886
• 455
• 219
.621
.246
.058
.173
• 199
.414
.636
• 296
.914
• 523
.185
• 143
.155
.125
.161
• 286
• 027



&BHC A
4LIN



&ALD






&DDE





&PP DDT
&MIREX
                                  97

-------
REPORT:     S«31   CHANNELS  24                   6'  1.5%OV17/1 -95%QF1 200

SAMPLE: R110TENAX      INJECTED AT.  15: 16: 12 ON JUN  1>  1977

ESTD METHOD: PEST


ACTUAL RUN TIME:   25.003 MINUTES

EL > 10 MV
ENDED NOT ON BL
   RT
AREA
PPT
NAME
• 04
• 09
.58
."77
.'88
2.35
2.61
2.85
3.16
3.51
3*90
4.28
5.31
5.63
5. '8 5
6.' 17
7.34
7.95
9.15
10.25
10.86
11.51
13.39
20.19
12765 BV
19753 VV
34723 VV
13107 VV
114188 VV
41021 VV
16211 W
31628 W
6073 VV
1640 VV
8674 W
8388 W
17771 W
30374 W
14184 W
44593 VV
48446 VV
7150 W
6062 VV
7432 W
6136 W
7527 VV
17237 W
2677 VB
.263
.415
• 729
• 275
1-256
.531
• 340
.664
.128
.021
.182
.176
• 373
• 638
.298
.936
• 589
-150
.127
• 156
.129
.158
• 301
.035




&BHC A
&LIN



&ALD






&DDE





«PP DDT
&M I REX
                                98

-------
REPORT:     9.21   CHANNEL: 24                   6f  1 .5%OV17/1 -95%QF1 200




SAMPLE: R111TENAX     INJECTED AT   15:47:40 ON JUN   1*  1977




ESTD METHOD!  PEST






ACTUAL RUN  TIME:   25.017 MINUTES




ENDED NOT ON  BL
   RT
AREA
PPT
NAME
1.10
1.42
1.57
1.86
2.34
2. '61
2*84
3.14
3.48
3. '89
4.25
5.28
5.61
6.13
7-32
7.94
9.13
10*21
10.83
1 1 .47
13.38
18. '92
45270 BV
5160 VV
58296 W
163677 VV
83766 W
16701 W
43140 VV
5287 W
1216 W
10940 VV
7798 VV
17906 W
52673 W
43506 W
40234 VV
5690 VV
5151 W
7777 VV
7221 VV
7751 VV
18161 VV
7841 VB
.951
•'108
1 .224
1.856 £BHC A
1.083 &LIN
.351
.906
-111
.'016 &ALD
• 230
• 164
• 376
1.106
.914
•489 &DDE
.119
.'108
• 163
."152
.163
."318 &PP DDT
• 165
                                   99

-------
REPORT:     10.21   CHANNEL: 24                   6' 1*5%OV17/L95XQF1 200

SAMPLE: RH1CHROMI02  INJECTED AT   16:17:21 ON JUN  1*  1977

ESTD METHOD:  PEST


ACTUAL RON  TIME:   25.008 MINUTES

BL > 10 MV
ENDED NOT ON  BL
   RT
AREA
PPT
NAME
1.11
1.34
1.42
1.58
1.87
2.35
2.61
2.85
3.15
3.49
3.89
4*27
5.08
5-29
5.61
6.13
7.32
9.14
10.21
10.84
11.47
13.38
18.93
48546 BV
6383 W
5999 W
64516 VV
189619 W
91574 VV
20733 VV
47217 W
7432 VV
1679 W
11440 W
9320 W
7535 VV
12788 W
60017 VV
48270 VV
53655 VV
5828 VV
8957 VV
8260 VV
8946 VV
21858 VV
3338 VB
1.019
• 1 34
.126
1.355
2.086 &BHC A
1.184 &LIN
.435
."992
• 157
.022 &ALD
• 240
• 196
• 158
• 269
1*260
1.014
.* 652 &DDE
• 122
.188
.173
• 188
• 382 SPP DDT
• 175
                                  100

-------
REPORT:     13.31   CHANNEL: 24




SAMPLE: R112POLYU     INJECTED AT




ESTD METHOD:  PEST






ACTUAL RUN  TIME:   25.017 MINUTES
                                              6f L5XOV17/1 »95%QF1 200




                                  9:16:35 ON JUN  2* 1977
RT
            AREA
PPT
NAME
1.10
1.54
1.89
2. '3 6
2. '63
2. "8 7
3.19
3. '50
3."66
3.91
4. '2 6
5- '30
5-63
6.14
7.33
8.00
9.12
10.21
10.86
11.50
13. '34
20.30
7702
67957
157804
57801
30149
100692
75197
8603
6291
24437
20932
40663
125271
86541
25818
9153
6366
7863
12948
5573
17193
2107
W
VV
VV
VV
W
W
W
VV
VV
VV
VV
W
VV
W
W
VV
VV
W
W
W
VV
VB
-162
1.427
1.841
• 791
•'633
2.115
1.579
• 119
• 132
• 514
• 440
.854
2.631
1.817
.328
.192
.134
.165
.272
.117
.317
.029


&BHC A
&LIN



&ALD






&DDE





&PP DDT
&MIREX
                             101

-------
REPORT:     16.11  CHANNEL:  24                   6' 1 -5ZOV17/1.955SQF1 200




SAMPLE: R113TENAX     INJECTED AT  15:43:59  ON JUN  2.»  1977




ESTD METHOD:  PEST






ACTUAL RUN  TIME:  25-008  MINUTES




BL > 10 MV
   RT
AREA
PPT
NAME
1.09
1.20
1.51
1*86
2-33
2.59
2.83
3.15
3.47
3.86
4.25
5.02
5-25
5.57
6.07
7-27
10.04
10.78
11.38
13.25
20.02
34195 BV
66696 VV
86816 VV
323863 W
59834 VV
37647 VV
110639 VV
140904 W
62894 W
24290 VV
16711 VV
15724 VV
18776 W „
119742 VV ;
79454 VV
26184 VV
7010 VV
13611 W
5475 VV
15243 VV
1821 VB
.718
1.401
1.823
3.910
.343
-791
2-323
2.959
.890
.510
.351
.330
.394
2.515
1.669
• 346
-147
.286
.115
.289
.026



&BHC A
&LIN



&ALD






&DDE



&PP DDT
2MIREX
                                   102

-------
REPORT:     17.21   CHAMMEL: 24                    6'  l'- 5%0 VI7/1.95%QF1 200




SAMPLE:  R113TEMAX+S    IMJECTED AT  16:21:47 OM JU.M   2.*  1977




ESTD METHOD: PEST






ACTUAL RtW TIME:   25.008 MIMUTES




BL > 10  MV
   RT
AREA
PPT
NAME
1.09
1-33
1.51
1.86
2-32
2.59
2-83
3-15
3.40
3.87
4. 14
5.03
5.26
5.58
6.10
7.23
9.07
10.11
10.79
11.40
13-32
20-15
49722
5597
103711
451761
175942
43059
112682
110837
129808
22432
33236
12588
20517
119661
87786
172307
4975
8746
13724
5315
129010
135309
BV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
w
VB
1 .044
• US
2.178
5.453
2.473
.904
2-366
2.328
1.836
• 471
• 698
.264
• 431
2.513
1.344
2.279
.104
.184
.283
.112
2.442
1.929



&BHC A
&LIM



&ALD






&DDE




&PP DDT
&MIREX
                                     103

-------
REPORT:      3«11   CHANNEL: 24                   6' 1 -5%OV17/1 .95%QF1 200




SAMPLE: R114CHROM102  INJECTED AT   15:19:03 ON JUN  3*  1977




ESTD METHOD:  PEST






ACTUAL RUN  TIME:   25-008 MINUTES
   RT
AREA
PPT
NAME
1.10
1*56
1-86
2.33
2-59
2.83
3-14
3-46
3-86
4.23
5.01
5.25
5.57
6-06
7-26
7-87
9.06
10.08
10.75
11.38
13.24
20.04
46018
40354
250247
75257
37053
149703
47599
11109
21815
14151
14727
15071
116924
69925
29697
6140
6436
8192
11812
7584
13835
2279
VV
VV
VV
W
W
W
VV
VV
VV
VV
VV
W
VV
VV
VV
VV
VV
W
VV
VV
BV
VB
• 966
• 847
3*021
1.060
• 778
3.144
1.000
.157
• 458
.29?
.309
.316
2.455
1.468
.393
,* . 1 29
• 135
.172
• 248
.159
.262
.032


&BHC A
&LIN



&ALD






&DDE





&PP DDT
£4 1 REX
                                   104

-------
REPORT:      2.11  CHAM.MEL:  24            ~"  '    6' 1 •5%0VI 7/1.95%QF1  200




SAMPLE: R114POYLU    " INJECTED AT  14:42:44 OH JUtf  3*  1977




ESTD METHOD:  PEST






ACTUAL RUM  TIME:  25.008  MIMUTES
   RT
AREA
PPT
NAME
1.09
1.56
1.86
2.33
2.59
2.83
3.14
3.45
3.62
3.86
4-23
5.02
5.25
5-56
6.05
7.26
7.88
9.04
10.08
10-74
11.37
13.22
18.71
20.04
8524
43346
182701
87299
47192
197058
58127
18255
8857
32975
29765
21601
23925
140297
85284
39073
9326
8355
10629
14368
8919
20577
5087
4343
VV
VV
VV
W
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
W
VV
VV
VV
VB
• 179
.910
2-205
1.230
.991
4-138
1.221
.253
. 186
-692
.625
.454
.502
2-946
1-791
• 517
• 196
.175
.223
• 302
• 137
.390
-107
• 062


&BHC
&LIN



&ALD







&DDE





&PP }

&MIR:
                                     DDT
                                    105

-------
REPORT:      2-31   CHANNEL: 24                    6*  1 • 5ZOV17/1.95XQF1 20(

SAMPLE: R115TENCHAR   INJECTED AT  14:37:22 ON  JUN   8*  1977

ESTD METHOD:  PEST


ACTUAL RUN  TIME:   25-017 MINUTES


   RT        AREA       PPT           NAME

  1.86         2336 VV    .028   &3HC A
  2-33         1552 W    .022   &LIN
  3-48         1723 VV    .024   &ALD
 21.64         9809 BB    .206
                                  106

-------
REPORT:      3-11  CHAMNEL:  24                   6'  1 • 5%0 VI 7/1.95SQF1  200

SAMPLE:  RH5TENPLN     INJECTED AT   15:29:24 ON JUN  8*  1977

ESTD METHOD:  PEST


ACTUAL RUM  TIME:  25-017  MINUTES

BL > 10  MV
ELIDED NOT ON  BL
   RT
AREA
PPT
NAME
1
1
1
2
2
2
3
3
3
4
5
5
5
6
7
7
9
10
10
1 1
13
18
.09
.49
.85
.32
-58
.82
.13
• 45
.85
.21
.01
• 23
• 54
.05
.25
.88
.02
.03
.70
• 34
.17
.66
42001
55274
259556
145174
26342
53427
8 6788
22513
14797
12023
9712
16358
75292
59504
19213
7863
7296
7521
10724
8502
13702
8732
BV
VV
VV
VV
VV
VV
VV
w
VV
VV
w
VV
VV
VV
VV
VV
VV
VV
VV
VV
BV
VB
•
1.
3.
2.
•
1.
1.
•
•
•
•
•
1.
1.
v
•
•
V
•
•
•
•
882
161
133 &BHC A
045 &LIN
553
122
823
318 &ALD
311
252
204
344
581
256
254 &DDE
165
153
158
225
179
259 &PP DDT
183
                                   107

-------
REPORT:      4.11   CHANNEL:  24                   6f  1.5%0 VI 7/1.95%QF1  200




SAMPLE: Rl 16POLY-U    IMJECTED AT  15:53:15 ON  JUN  8* 1977
                                                        »



ESTD METHOD:  PEST







ACTUAL RUN  TIME:   25-017 MINUTES




ENDED NOT  ON BL
   RT
AREA
PPT
NAME















1
1
1
1
1
2
2
2
3
3
3
4
4
4
5
»
•
»
*
»
•
•
*
*
•
*
*
•
•
•
6.



7
7
9
•
•
*
10.
1
1
1
3
•
*
08
18
39
52
84
30
50
80
11
44
84
33
75
97
53
03
25
59
88
69
32
26
5857
10290
13615
15531
219257
59664
67361
46933
144962
139561
13195
26501
5762
31126
131936
86650
4717
14393
6596
10784
8207
17906
VV
W
VV
VV
VV
VV
VV
VV
VV
W
VV
VV
VV
VV
VV
VV
VV
VV
W
W
VV
W
.
*
*
*
2.
•
1.
•
3-
1.
•
*
> .
»
2-
1.
•
»
»
•
•
*
123
216
236
327
647
840
425
986
044
974
2?7
557
121
654
772
820
062
313
139
226
172
339




&BHC
&LIN



&ALD






&DDE




&PP :
                                     DDT
                                  108

-------
REPORT:      5-11  CHAMtfEL:  24                    6'  1 - 5%0VI7/1.95%QF1 200
           •' '•     /
SAMPLE:  Rl 1 6CHRO>1010   INJECTED AT   16:26:53 OM JUM  8.r 1977

ESTD METHOD:  PEST



ACTUAL RUN  TIME:  25-003  MIMUTES

EMDED WOT  OM  BL
   RT
AREA
PPT
NAME
1
1
1
1
1
2
2
2
3
3
3
4
4
5
5
6
7
7
9
10
11
13
.11
.21
-42
.56
.38
.34
.55
• 84
• 15
• 47
.87
• 36
.79
.00
-57
.06
.28
• 62
-93
• 73
• 36
.29
5444
9393
12775
14252
212173
61872
68448
62165
139804
135109
15940
26959
5114
32096
1 28 2 1 6
82641
6436
14561
6923
11939
8170
16438
VV
VV
VV
W
W
VV
VV
VV
VV
VV
W
VV
VV
VV
VV
VT
TV
VV
VV
VV
VV
VV
„
i
.
.
2.
.
1.
1.
2-
1.
9
.
.
.
2.
1.
.
»
.
.
*
.
114
197
263
299
561
871
437
305
936
911
335
566
107
674
693
735
086
306
145
251
172
311




&3H.C
&LI-XF



&ALD






&DDE




A^5^5 '
                                     DDT
                                  109

-------
REPORTS     3*51   CHANNEL:  24                  6* 1 »5ZO VI 7/1 .95XQF1  200

SAMPLE: R117CHR102    INJECTED AT  14: 1 7:46 ON JUN  9* 1977

ESTD METHOD: PEST


ACTUAL RUN TIME:   25*008 MINUTES
  RT

 1.09
 1.56
 1.85
 2.31
 2.57
 2.93
 3.12
 3-45
 4.97
 5.53
 6.03
 7.22
 9.08
 9.90
10.63
11.30
13.54
18.60
            AREA
PPT
NAME
7662 VV
60987 VV
187840 VV
49719 W
6389 W
34557 VV
13927 W
2312 W
16770 VV
49074 W
42494 W
21018 W
5844 VV
5532 VV
5510 W ,
9038 W ;
13089 W
9054 VB
.161
1.281
3.490
1 .080
.134
.726
.292
.051
.352
1.031
.892
• 425
.123
.116
.116
.190
.374
.190


ABHG A
&LIN



&ALD



&DDE




«PP DDT

                                  110

-------
REPORT:     2-11   CHANNEL:  24                   6*  1.5SOV17/1.95%QF1  200




SAMPLE: R117POLY-U    INJECTED AT  13:46:42 OM JUN   9*  1977




ESTD METHOD: PEST






ACTUAL RUN TIME:   25.017 MINUTES
   RT
AREA
PPT
NAME
1.56
1.85
2*31
2.57
2.93
3*12
3. '44
3.84
4.24
4. "9 7
5.53
6-03
7.22
8.42
9.07
9.92
10.65
1 1 .29
13*31
58637 TV
102351 W
46138 W
8701 W
55410 VV
21278 VV
13849 VV
6442 VV
12318 W
27527 W
76413 VV
62170 W
32429 W
5811 W
9332 W
7444 W
8383 W
12165 VV
13435 W
1.231
1.911 &BHC A
1.002 &LIN
^183
1.164
.447
.'303 &ALD
• 135
.'259
.578
1*605
1*306
.656 &DDE
*122
.196
• 156
."176
.255
•384 APP DD
                                111

-------
REPORT:     2      CHANNEL:  18                   6f  1-5*0VI7/1»95%QFl 200
                                                  n



SAMPLE: R113TEMAX      IMJECTED AT  14:48:16 ON JUN  13*  1977




ESTD METHOD: PESTX






ACTUAL RUN TIME*   25-017 MINUTES




ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.03
1.09
1.56
1.86
2. '3 2
2-58
2.82
3.14
3.46
4.26
5. '00
5.56
6.07
7.26
10.' 67
11.36
13-67
18.68
12717 TV
9021 VT
50159 W
172460 W
55632 W
6355 W
12279 W
12509 VV
1666 W
4815 W
14317 VV
48326 VV
42125 VV
17041 VT
6936 VV
12766 VV
16724 VV
13773 VB
.267
.189
1 .053
2.074
.783
• 133
.258
.263
.024
.101
.301
1.015
.885
> .223
.146
.263
.'303
.289



&BHC A
&LIN



&ALD




&DDE


fiPP DDT

                                 112

-------
REPORT:      3    ., CHANNELS 18                   6' 1 • 5%0VI7/1 «95%QF1 200




SAMPLE: R118POLY-U    INJECTED AT   15:34:25 ON JUN 13* 1977




ESTD METHOD: PESTX






ACTUAL RUN  TIME:   25.017 MINUTES




ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.56
1-85
2.32
2-57
2.81
3.13
3.45
3.85
4.12
5.22
5.55
5.79
6.07
7.25
7-89
8.49
9.05
10.08
10.69
11.36
13.24
15.00
17.93
18.70
41529
112301
95911
11440
27054
24930
10284
9659
14213
29611
40933
19590
66147
54208
16299
8423
15636
18184
14903
22204
34654
9501
5333
13696
VV
VV
VV
VV
VV
W
VV
VV
VV
W
VV
W
VV
W
W
W
VV
W
VV
VV
VV
VV
VV
VV
.872
1.351 &BHC A
1.351 &LIN
.240
.563
.524
.'146 &ALD
.203
.298
.622
.860
.411
1.389
. 708 &DDE
.342
.177
.328
.382
.313
.466
. 628 &PP DDT
.200
.112
.288
                                113

-------
REPORT:    21      CHANNELS 18                   6' 1-5*0 VI 7/1.9 5ZQF1  200
              • •*
SAMPLE: R119TENAX     INJECTED AT   8:45:53 ON JUN 20* 1977

ESTD METHOD: PEST


ACTUAL RUN TIME:   25.017 MINUTES

BL > 10 MV
  RT

 1.10
 1.33
 1.54
 1.85
 2.32
 2.58
 2.82
 3.11
 3.63
 3.84
 4.19
 4.99
 5.21
 5-53
 6.04
 7-22
 7.86
10.04
10.69
13.15
19.87
AREA
50906 BV
9107 W
16076 VV
147203 VV
59354 W
53483 VV
187189 VV
20519 VV
8631 VV
31398 VV
16398 VV
11384 W
23927 VV
126835 VV
92322 VV
24372 W
5977 VV
6316 VV
13394 VV
14305 BV
2433 VB
PPT
1.069
i!91
.338
1.750
.828
1.123
3-931
.431
.131
.659
.344
.239
.502
? 2.664
1.939
.314
,126
.133
.281
.264
.034
                                     NAME
                                 &BHC  A
                                 &LIN
                                 &DDE
                                 fiPP DDT
                                 &MIREX
                                   114

-------
REPORT:     22     CHAN.'JEL:  18                   6' 1.5%OV17/1-95XQF1  200
               M.L. ."


SAMPLE:  RI19CHR102     INJECTED AT   9:16:54 ON JUN 20*  1977



ESTD METHOD:  PEST

                                                   *



ACTUAL RUM  TIME:  25.017  MINUTES



BL > 10  MV

ENDED NOT ON  BL
   RT
AREA
PPT
NAME
1.09
1.32
1.55
1.85
2-32
2.53
2.82
3.12
3-43
3.62
3.84
4.20
5.*00
5.22
5-53
6.05
7-23
7.84
8.97
10.04
10.70
11.31
13.16
19.91
41103 BV
24579 VV
18592 VV
158462 VV
63807 VV
61831 VV
197022 VV
49780 VV
3057 VV
7186 VV
29994 VV
19315 W
13407 VV
28903 VV
139416 W
108117 VV
31876 VV
6396 VV
6391 VV
10791 W
16451 VV
7055 VV
24631 VV
1753 VV
• 863
• 516
• 390
1.884
.890
1.298
4.137
1.045
• 043
-151
.'630
.406
.232
.607
2.928
2.270
• 410
.134
-145
.227
• 345
.148
.454
.024



&BHC A
&LIN



&ALD







&DDE





&PP DDT
&MIREX
                                  115

-------
REPORT:     23      CHANNEL*  18

SAMPLE: R120CHR102 '   INJECTED AT

ESTD METHOD: PEST


ACTUAL RUN  TIME:   25.017 MINUTES

BL > 10 MV
ENDED NOT  ON BL
                                              6f 1. 5%OV1 7/1 .95ZQF1 200

                                   9:57:52 ON JUN 20*  1977
RT       AREA
                        PPT
NAME
1.10
1.51
1.86
2.32
2.59
2.82
3.13
3*45
3-85
4.21
4-99
5.21
5.54
6.04
7-23
9.97
10.68
11.28
13.17
18.56
54209
28335
161695
47593
26790
95316
49462
8402
17953
11848
13867
15261
92824
69175
23641
7113
12311
7223
15054
9735
TV
W
VV
VV
VV
W
VV
VV
VV
VT
TV
w A
VV "
VV
VT
VV
VV
VV
TV
VB
1.138
.595
1.922
.'664
• 563
2*002
1 -"039
.118
.377
.249
.291
• 320
1.949
1.453
.304
.149
.259
.152
.278
.204


&BHC A
&LIN



&ALD






&DDE



£PP DDT

                                116

-------
REPORT:     24     CHANNELS  18                    6f  1 • 5%0VI7/1-95%QF1  200




SAMPLE: R120POLY-U    INJECTED AT   10:30:32 ON JUM  20*  1977




ESTD METHOD:  PEST






ACTUAL RUM  TIME:   25-017 MINUTES




ENDED NOT ON  BL
   RT
AREA
PPT
NAME
1-08
1-49
1.83
2.29
2.55
2.79
3.09
3.42
3-57
3.81
4.16
5.16
5-49
6.03
7.17
7.79
8.92
9. "9 4
10.60
11.21
13.06
18-47
7853 BV
32909 VV
116536 VV
54827 VV
31396 VV
107579 VV
64303 VV
9971 VV
8775 W
25632 W
2>408 VV
44653 VV
117852 VV
114229 VV
34460 VV
8722 VV
8149 W
11506 VV
15779 VV
9741 VV
20077 BV
13918 VB
.165
.691
1.385 &BHC A
.765 &LIN
.659
2.259
1.350
. 1 40 &ALD
.184
."538
.555
.938
2.475
2.399
.444 &DDE
.183
.171
.242
• 331
• 205
.370 fiPP DDT
.'292
                                    117

-------
REPORT:     26     CHANNEL:  18                    6' -1 • 5%OV17/1.95SQF1 200


SAMPLE: R121POLY-U    INJECTED AT  11:32:47 ON JUN  20*  1977
                    r

ESTD METHOD:  PEST




ACTUAL RUN  TIME:   25-008 MINUTES


ENDED NOT ON  BL
   RT
AREA
PPT
NAME
1*55
1.84
2. "30
2.55
2.78
3-09
3.41
3.80
4.20
4.94
5.14
5.48
5.95
7.14
8.36
8.94
9.91
10. '54
11-17
13*04
18.38
33862 W
63308 VV
60157 VV
15052 VV
45560 VV
25742 W
20802 W
12512 W
15581 VV
17504 VV
8356 VV
62550 VV
50668 W
52891 VV ,
6210 VV '
9659 VV
10297 VV
9503 VV
11576 VV
21658 VV
8886 W
-711
.753 &BHC A
.839 &LIN
.316
.957
.541
.292 &ALD
.263
.327
• 368
.175
1.314
1.064
. 63 1 &DDE
.130
.203.
.216
.200
• 243
.'399 &PP DDT
.187
                                  118

-------
REPORT:     25      CHANNEL: 18                   6'  1 • 5XOV17/1.95ZQF1 200

SAMPLE: R121TENAX     INJECTED AT   11:02:05 ON JUN 20*  1977

ESTD METHOD: PEST


ACTUAL RUN  TIME:   25-017 MINUTES

BL > 10 MV
ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.09
1.42
1-55
1.84
2.31
2.56
2.80
3.10
3.43
3.82
4.18
4-98
5-17
5-50
6.03
7.18
8-41
8.97
9.99
10.60
11.23
13.12
14.84
18.47
27409
6015
34508
139603
105696
17371
45542
11225
1195
10519
8905
8421
11229
56624
54924
44966
5679
7693
10970
10857
11957
24423
5024
14132
BV
VV
VV
VV
VV
VV
VV
VV
VV
W
VV
VV
VV
W
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
• 576
-126
• 725
1.659 £BHC A
1.474 &LIN
• 365
• 956
.236
.017 &ALD
.221
-187
• 177
.236
U139
1.153
-579 &DDE
• 119
.162
.230
.228
.251
•450 &PP DDT
• 105
• 297
                                 119

-------
REPORT:    27      CHANNEL: 18                   6' 1 -5X0 VI7/1.95ZQF1 200




SAMPLES R122TENAX     INJECTED AT   12:55:01 ON JUN 20* 1977




ESTD METHOD: PEST






ACTUAL RUN TIME:   25*017 MINUTES




ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.02
1.40
1-55
1.84
2.30
2-55
2-79
3-10
3.41
3.81
4.26
5-17
5.50
5.74
6.03
7.17
7.78
8.40
8-95
9.97
10.53
1 1 .22
13.09
13.54
14.84
17-78
18.47
18897 BV
4786 W
20152 W
71887 W
64122 VV
8508 W
22171 VV
14462 W
6169 W
5651 W
5776 W
16667 W
23689 VV *
10904 W
40651 VV
46657 W
11044 W
7778 W
13025 W
12808 W
9805 VV
16322 W
12243 W
15365 W
6667 VV
^ 5307 VV
14351 W
• 397
• 101
.423
-855 &BHC A
•894 &LIN
• 1 79
• 466
-304
•087 &ALD
.119
.121
•"350
• 497
• 229
• 854
.601 &DDE
• 232
.163
• 274
• 269
.206
.343
• 257
."283 &PP DDT
.140
• 111
.301
                                   120

-------
REPORT:  V 28  •   CHANNEL:  18                    6f  I . 5%0 VI 7/1 .95%QF1  200




SAMPLE: R122CHR102    INJECTED AT  13:26:42 ON JUN 20*  1977




ESTD METHOD:  PEST






ACTUAL RUN TIME:   25-008 MINUTES




ENDED NOT  ON  BL
   RT
AREA
PPT
NAME
1-03
1.41
1.55
1.84
2-31
2.55
2-79
3-10
3.42
3*82
4.26
5.01
5.17
5-50
5-73
5.99
7.17
8.40
8-95
9.95
10.52
11.21
13-09
13-52
14.83
18-45
20865 BV
5829 VV
25459 VV
80789 VV
81557 VV
9034 VV
22720 VV
12666 W
3053 VV
5638 VV
5404 VV
9027 VV
8270 VV
25553 VV
11433 VV
39661 W
60907 VV
8543 VV
13775 VV
13695 W
10833 W
17728 VV
12993 VV
16707 VV
7087 VV
19178 VV
.438
-122
.535
• 960 &BHC A
1.137 &LIN
.190
• 477
.266
.043 &ALD
.118
• 113
.190
• 174
.537
• 240
.833
•784 ADDE
• 179
.289
.283
.227
.372
.273
.308 dPP DDT
-149
.403
                                  121

-------
REPORT:      5      CHANNEL: 18                   6f 1.5%OV17/U95%QF1  200




SAMPLE: R123CHR102 '  INJECTED AT   14*31:04 ON JUN 22* 1977




ESTD METHOD: PEST






ACTUAL RUM TIME:   25-008 MIMUTES




ENDED NOT OM BL
   RT
AREA
PPT
NAME
1.06
1.41
1.54
1.84
2.30
2.79
3.10
4-98
5.49
5.69
5.98
7-16
8- '9 3
9-94
10.52
1 1 .20
13-52
14.84
18.46
14376 BV
5280 VV
27512 VV
62309 VV
39790 VV
10136 VV
7793 VV
5903 W
20267 W
7623 VV
26790 VV
32662 W
7909 W >
8278 W "
7568 W
12519 VV
21157 VV
5117 VV
14447 VB
.302
• 111
• 578
• 811
.612
• 213
• 164
*124
.426
• 160
.563
-483
• 166
• 174
• 159
• 263
.'434
-107
• 303



&BHC A
&LIN






&DDE




&PP DDT


                                   122

-------
REPORT:      4     CHANNEL:  18                    6f !'• 5%0 VI 7/1.95%QF1 200




SAMPLE: R123POLY-U    INJECTED AT  13:59:46 ON  JUN 22.. 1977




ESTD METHOD:  PEST






ACTUAL RUN  TIME:  25.008 MINUTES




ENDED NOT ON BL
   RT
AREA
PPT
NAME
1*54
I. "72
1.84
2.30
2. '55
2-78
3.07
3.42
3.81
4.06
5-17
5. "50
5.73
6.07
7.17
7-80
8.40
8.95
10.01
10.56
1 1 .24
13.12
14.86
18.49
22732
5962
33395
40211
5010
14657
6068
5071
5639
7114
15223
24137
11194
43356
38653
8283
5179
10580
10632
8604
14383
25014
5813
17218
VV
W
VV
W
VV
W
VV
VV
W
VV
VV
VV
VV
VV
VV
VV
VV
VV
W
VV
W
W
VV
W
• 477
.125
• 434 &BHC A
.619 &LIN
•'105
.308
.127
.079 &ALD
• 118
.149
• 320
."507
.235
.910
.572 &DDE
.174
.109
.222
.223
-13t
.302
.513 
-------
REPORT:      7     CHANNEL:  18                    6'  l'.5ZOV17/l .9535QF1  200




SAMPLE: R124TENAX  /  INJECTED AT  15:33:19 ON  JUN 22*  1977




ESTD METHOD:  PEST






ACTUAL RUN  TIME:  25.008 MINUTES




ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.08
1.41 .
1.56
1.84
2.31
2-56
2. '80
3.' 10
3.43
3.82
4.18
4. '9 6
5-17
5.50
5-99
7-16
8.95
9.96
10.57
11.21
13.11
18.46
14204 TT
7270 TV
29699 VV
66049 VV
57861 VV
9734 W
23423 W
13566 VV
1619 W
8032 W
6399 VT
8654 TV
6206 VV
48295 VV »
40313 W
40059 W
6112 VV
8243 VV
7671 VV
9901 VV
18978 VV
11099 VT
.298
.153
• 624
• 859 &BHC A
.'890 &LIN
• 204
• 492
• 285
.'025 &ALD
."169
• 134
• 182
• 130
1.014
• 847
• 593 &DDE
• 128
-173
-161
• 208
.389 &PP DDT
• 233
                                   124

-------
REPORT:      6     CHANNEL: 18                   6' 1 -5%OV17/1.95%QF1 200




SAMPLE: R124POLY-U    INJECTED AT   15:02:09 ON JUN 22*  1977




ESTD METHOD:  PEST






ACTUAL RUN  TIME:   25-025 MINUTES




ENDED NOT ON  BL
   RT
AREA
PPT
NAME
1.56
1.85
2.31
2.56
2-80
3.11
3*43
3.83
4.20
4-97
5.17
5-51
6.00
7-19
8.40
8.99
9.97
10.61
1 1 .24
13.16
18.52
36521
44891
48834
7315
23293
22176
3305
9512
10091
13712
6641
63553
52036
45098
5139
8395
10434
10080
12554
23051
11246
W
VV
VV
W
W
VV
VV
W
VV
VV
VV
VV
VV
VV
W
VV
W
VV
VV
VV
VV
-767
• 584 &BHC A
.751 &LIN
• 154
• 489
• 466
.052 &ALD
.200
.212
.238
• 139
1.335
1.093
. 667 &DDE
-108
-176
.219
.212
• 264
.472 &PP DDT
• 236
                                  125

-------
REPORT:     3      CHANNEL: 18                   6f 1.5XOV17/1.952QF1 200

SAMPLE: R125CHR102 '.  INJECTED AT   15:42:08 ON JUN 27*  1977

ESTD METHOD: PEST


ACTUAL RON  TIME:   25-008 MINUTES

BL > 10 MV
ENDED NOT ON BL
   RT
AREA
PPT
NAME
1.10
1.43
1.57
1.86
2.34
2.60
2.84
3.14
3.45
3.88
4.24
5-05
5.26
5.59
6.09
7-28
9.08
10.16
10-77
11.39
13.30
18.75
28907
12729
30722
111983
64302
20693
81519
11519
1139
15093
9955
9242
12769
78958
58520
53127
6251
12007
10969
11096
27932
12511
BV
W
vv
vv
vv
W
vv
vv
vv
vv
vv
vv
vv
vv
vv
vv
W
W
vv
W
vv
vv
• 607
.267
.645
1.317 &BHC A
.836 &LIN
.435
1.712
.242
.016 &ALD
• 317
.209
v -194
" .268
1.658
1.229
. 671 &DDE
• 131
.252
• 230
.233
.496 &PP DDT
• 263
                                 126

-------
REPORT:      2      CHANNEL:  18                    6'  1. 5ZOV17/1-95%QF1  200




SAMPLE: R125TENAX     INJECTED AT  15:11:31 OM JUM  27>  1977




ESTD METHOD: PEST






ACTUAL RUM  TIME:   25.008 MINUTES
   RT
AREA
PPT
>JAME
1.10
1.43
1.57
1.86
2.33
2.58
2-83
3-64
3.86
4.23
5-26
5.56
6.10
7-25
8-54
9.02
10.12
10.72
11-34
13.24
18*68
36577
10955
28577
107667
58939
25830
92170
7081
14176
11972
21858
71506
66779
53742
5373
7127
11940
9877
9730
22464
12109
TT
VV
VV
VV
VV
W
W
VV
VV
W
VV
VV
VV
W
VV
VV
VV
W
VV
BV
V3
• 763
.230
• 600
1.266 &BHC A
.812 &LIN
.543
1.936
.149
.298
.251
• 459
1.502
1.402
. 679 
-------
 REPORT:      6     CHANNEL:  18




 SAMPLE: R126CHR102    INJECTED AT




. ESTD METHOD:  PEST






 ACTUAL RDM  TIME:   25-003 MINUTES




 ENDED NOT ON BL
                                              6f  1 • 5*0 VI 7/ 1 .95%QF1 200




                                   8:39:11 ON JIM  23*  1977
RT
              AREA
PPT
NAME
1*03
1-41
1-53
1*83
2.30
2-55
2.79
3.08
3.80
4-14
4-93
5*14
5.47
5-96
7-13
8*90
9-94
10.55
11.15
13-03
14.74
18-37
22165 BV
13182 VV
15384 VV
115024 VV
21551 W
13968 VV
53325 VV
13111 VV
12283 VV
7254 VV
9479 W
9612 VV
6533 6 W
50002 W
42290 VV
6505 VV
13228 VV
10777 VV
9922 VV
27796 VV
4913 VV
11041 VV
• 465
• 277
.323
1.375 &BHC A
.301 &LIN
.293
1.120
.275
• 258
• 152
-199
.202
1.333
> 1.050
• 545 &DDE
.137
.273
• 226
.208
.507 &PP DDT
.103
.232
                               128

-------
REPORT:      7      CHANNEL: 18                    6'  1. 5SO VI7/1-95%QF1  200




SAMPLE: R126POLY-U    INJECTED AT    9:10:29 ON JUM  28*  1977




ESTD METHOD: PEST






ACTUAL RUN  TIME:   25-017 MINUTES




ENDED NOT ON BL






   RT        AREA        PPT           NAME
1.54
1.84
2.30
2.56
2.79
3.09
3.38
3.81
4.16
4.95
5.16
5. '48
5.98
7-15
7.76
8.92
9.97
10.58
11.19
13.06
18.41
16603
66485
19848
11642
51649
21685
5322
14739
10978
11139
11178
68606
53779
35922
5456
6205
12306
9978
8636
26945
10486
W
W
VV
W
VV
VV
VV
VV
VV
W
VV
VV
VV
VV
VV
VV
VV
VV
VV
VV
W
.349
.795
• 278
.244
1.085
.455
.074
• 310
.231
.234
.235
1.441
1-129
.463
.115
• 130
.258
.210
.181
.491
.220

&BHC
&LIN



&ALD






&DDE





&PP :

                                     DDT
                                  129

-------
                                  TECHNICAL REPORT DATA
                           (Please read Instructions on the reverse before completing)
 REPORT NO.
 EPA-600/1-77-050
             3. RECIPIENT'S ACCESSION"NO.
 TITLE AND SUBTITLE
 Evaluation of Collection Media for Low Levels  of
 Airborne  Pesticides
             5. REPORT DATE
                October 1977
             6. PERFORMING ORGANIZATION CODE
 AUTHOR(S)
 John W.  Rhoades and Donald E.  Johnson
             8. PERFORMING ORGANIZATION REPORT
 PERFORMING ORGANIZATION NAME AND ADDRESS
 Southwest Research Institute
 8500  Culebra Road
 San Antonio, Texas 78284
              10. PROGRAM ELEMENT NO.
               1EA615
              11. CONTRACT/GRANT NO.
                68-02-2235
2. SPONSORING AGENCY NAME AND ADDRESS
 Health Effects Research  Laboratory
 Office of Research  and Development
 U.S.  Environmental  Protection Agency
 Research Triangle Park,  N.C. 27711
              13. TYPE OF REPORT AND PERIOD COVER
RTP-NC
              14. SPONSORING AGENCY CODE

                EPA-600/11
5. SUPPLEMENTARY NOTES
6. ABSTRACT
       Polyurethane  foam plugs, Chromosorb  102, and Tenax GC have all been found
  to be better sorbents than cottonseed  oil for high volume collection of airborne
  chlorinated and  organophosphate pesticides and polychlorinated biphenyls.  None
  of these were  satisfactory for the recovery of carbofuran or  carbaryl.  A new
  high volume collecting module concept  capable of use with polyurethane foam,
  porous polymer beads, liquid coated  glass beads, or other solids was developed.
  The entire collector is Soxhlet extracted and no disassembly  is required. The
  collector-extractor is ready for reuse as soon as residential solvent is removed.
                                KEY WORDS AND DOCUMENT ANALYSIS
                  DESCRIPTORS
b.lDENTIFIERS/OPEN ENDED TERMS  C.  COSATI Field/Groi
  pesticides
  collecting methods
 organophosphate pesticide
 chlorinated pesticides
   07 C
   14 B
  air
18. DISTRIBUTION STATEMENT

  RELEASE  TO PUBLIC
 19. SECURITY CLASS (ThisReport)

  UNCLASSIFIED
21. NO. OF PAGES
    138
                                              20. SECURITY CLASS (Thispage)
                                               UNCLASSIFIED
                            22. PRICE
EPA Form 2220-1 (9-73)
                                             130

-------