ECAO-CIN-P229                                              fmi DRAFT
                                                         ECAO-CIN-P229
               AQ«nev                                      August,  1987
4>EPA       Research and
               Development
               HEALTH AND ENVIRONMENTAL EFFECTS PROFILE
               FOR BENZO(K)FLUORANTHENE
               Prepared for
               OFFICE OF SOLID HASTE AND
               EMERGENCY RESPONSE
              Prepared  by
              Environmental Criteria and Assessment Office
              Office of Health and Environmental  Assessment
              U.S. Environmental  Protection Agency
              Cincinnati,  OH  45268
                          DRAFT: D0 NOT CITE OR °UOTE
              m«n*
      *eg/on v UH  tal Protect/on A
      230 South nary          8enc*
      Chi«*o, /^reet
           This document Is a preliminary draft. It has not been formally released
        by  the  U.S. Environmental Protection Agency  and should  not at this stage be
        construed to represent Agency policy.  It 1s being circulated  for comments
        on  Us technical accuracy and policy Implications.

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        *    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                      OFFICE OF RESEARCH AND DEVELOPMENT
                   ENVIRONMENTAL CRITERIA AND ASSESSMENT OFFICE
                                CINCINNATI, OHIO 45268

                                August  20, 1987
SUBJECT: Health and Environmental  Effects Profiles

FROM:    Chris DeRosa
         Chief              _
         Chemical Mixtures Assessment Branch,  ECAO-C1n

TO:      Matthew Straus
         Chief, Waste Characterization Branch
         Office of Solid Waste (WH-562B)

THRU:    Steven D. Lutkenhoff
         Acting Director
         Environmental Criteria and Assessment Office-CIn

                           A  \ //«       QPD   8 IQRT
                  Preuss   /^AiltU&A  bt

         Office of Health and Environmental Assessment (RD-689)

    Attached please find two unbound copies of the Health and Environmental
Effects Profiles (HEEPs) for:

    Benzo(k)F1uoranthene (ECAO-C1n-P229)
    Benzo(gh1)Perylene (ECAO-Cin-P276)
    Phenanthrene (ECAO-Cin-P226)
    Pyrene (ECAO-C1n-P277)

    These documents represent scientific summaries of the pertinent
available data on the environmental fate and mammalian and aquatic toxldty
of each chemical at an extramural  effort of about 5.2K.  These documents
received Internal OHEA, OPP and OTS reviews as well  as review by two
external scientists.  Any part of  these document's files (e.g., drafts,
references, reviews) 1s available  to you upon  request.

Attachments

cc: M. Callahan (RD-689)
    P. Durkln, Syracuse Research Corporation (w/enclosures)
    W. Farland (RD-689)
    R. Hardesty (RD-689)
    0. Kooyoomjlan (WH-548B)  (w/enclosures)
    E. McNamara (PM-211A) (w/enclosures)
    D. McK1e (WH-562) (w/enclosures)
    J. Moore (RD-689)
    M. Lee (WH-562) (w/enclosures)
    M. Pfaff (RD-689) (w/enclosures)
    R. Rubenstein (WH-562B)
    R. Scarberry (WH-562B)
    D. V1llar1 (WH-562B) (w/enclosures)
    C. Zamuda (WH-548D)

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                                              DISCLAIMER

               This  report 1s an  external  draft  for  review purposes only and  does  not
            constitute  Agency  policy.   Mention  of  trade names  or  commercial  products
            does  not  constitute endorsement  or  recommendation for  use.
&?,--
                                                  11

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                                    PREFACE
    Health  and  Environmental Effects  Profiles  (HEEPs) are  prepared  for  the
Office  of Solid  Waste  and  Emergency  Response  by  the Office of  Health  and
Environmental  Assessment.    The  HEEPs are  Intended  to  support  listings  of
hazardous  constituents  of  a wide  range  of  waste  streams  under  Section 3001
of  the  Resource  Conservation and Recovery Act  (RCRA), as  well  as to provide
health-related limits for  emergency  actions  under  Section  101 of the Compre-
hensive  Environmental  Response,  Compensation  and  Liability Act  (CERCLA).
Both  published  literature  and  Information obtained from Agency  program
office  files  are  evaluated as  they  pertain   to  potential  human  health,
aquatic life and  environmental  effects of hazardous waste  constituents.  The
literature  searched  and  the  dates  of   the searches  are  Included  In  the
section   titled   "Appendix:  Literature  Searched."   The  literature  search
material  1s current through November, 1985.

    Quantitative  estimates  are   presented   provided  sufficient  data  are
available.  For systemic toxicants,  these Include  Reference doses (RfDs)  for
chronic exposures.   An  RfD  Is  defined as  the amount  of a  chemical  to  which
humans  can be  exposed   on a dally  basis over  an  extended period  of  time
(usually  a lifetime)  without suffering a  deleterious effect.  In the case of
suspected  carcinogens,   RfDs are  not  estimated  1n  this   document  series.
Instead,  a  carcinogenic potency  factor  of   q-j*  Is  provided.  These  potency
estimates are derived for  both  oral  and  Inhalation exposures where possible.
In  addition,  unit  risk  estimates  for air  and  drinking water are presented
based on  Inhalation and  oral data, respectively.

    Reportable quantities  (RQs)  based on both  chronic toxldty  and carclno-
genldty are derived.  The RQ 1s  used to  determine the quantity of a hazard-
ous substance  for which notification  1s  required   In  the event  of a  release
as  specified under  CERCLA.  These two RQs (chronic toxldty and cardnogen-
IcHy)  represent  two of   six scores  developed   (the remaining  four  reflect
1gn1tab1l1ty, reactivity, aquatic toxldty and acute mammalian toxldty).

    The  first  draft  of  this   document  was  prepared by  Syracuse  Research
Corporation  under  EPA  Contract  No.  68-03-3228.    The  document  was  subse-
quently  revised   after  reviews   by  staff  within  the Office  of  Health  and
Environmental Assessment:  Carcinogen Assessment Group,  Reproductive  Effects
Assessment Group, Exposure Assessment Group, and  the Environmental  Criteria
and Assessment Office In Cincinnati.

    The HEEPs will become part  of the EPA RCRA and CERCLA dockets.
                                      111

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                               EXECUTIVE SUMMARY
                     ^
                  »
     Benzo[k]fluoranthene 1s a pale yellow solid at ambient  temperatures.   It
 1s soluble In ethanol, benzene and acetic acid, but  Is  practically  Insoluble
 In water (Weast, 1980; Pearlman et al., 1984).  This compound  1s  susceptible
 to oxidation by  ozone,  peroxides and  other  oxldants.   Frequently,  dlone  1s
 the product of  such oxidation, although dlmerlzatlon may occur  1n some cases
 (NAS,  1972).   Benzo[k]fluoranthene Is neither commercially  produced nor used
 1n the United States  (IARC,  1983).
     If  released  to  the  aquatic environment,  benzo[k]fluoranthene  1s  not
 expected  to  hydrolyze,  oxidize  (by  R02  radical  or   ^p)   or  volatilize
 significantly (Mabey  et  al., 1981;  Lyman  et al., 1982).   A static  culture
 flask-screening  blodegradatlon study with domestic wastewater seed  has shown
 that  benzo[k]fluoranthene can be significantly blodegraded  (Fochtman, 1981);
 however, mlcroblal  oxidation of  PAH  requires  oxygen  and will not proceed  1n
 anoxlc sediments or water  (U.S.  EPA,  1986a).   In natural water,  blodegrada-
^
 tlon  1s expected to be  slow.   In the dissolved state, direct photolysis may
 be significant  In  the  water column; however, photolysis  will  be Insignifi-
 cant  1n  deep,  turbid  waters.   Adsorption to suspended participate  matters
 and sediments 1n water Is an Important environmental fate process (U.S. EPA,
 1986a).   The very  low water  solubility  and high  log  K   of benzo[k]fluor-
 anthene  suggest  a  significant potential  for bloaccumulatlon;  however,  PAH
 may not  appreciably  bloconcentrate  In  organisms  such as  fish that  have
 mlcrosomal  oxldase  because  this  metabolizes  PAH  (Santodonato et al., 1981).
 Therefore,  bloaccumulatlon  potential may be  dependent  on the organism being
 considered.   The  nonvarlabHUy  of  benzo[k]fluoranthene  concentrations   1n
 bottom sediment  cores  In remote  lakes (Tan  and  Helt,  1981)  Indicate that
 benzo[k]fluoranthene  1s  very persistent under anaerobic and dark conditions.

                                      1v

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If released  to  the atmosphere, benzo[k]fluoranthene will exist  primarily  In
the partlculate  (adsorbed)  phase,  although vapor  phase  benzo[k]fluoranthene
may also  be  present.   Vapor phase benzo[k]fluoranthene  appears   susceptible
to significant  transformation  by direct  photolysis  and reaction with  ozone
and HO  radical   (Lane  and  Katz,  1977;  U.S.  EPA, 1986b).   Partlculate  phase
benzo[k]fluoranthene may be more resistant to  reactions  as  Indicated  by long
distance transport of  the atmospheric aerosol  (Tan and  He1t,  1981;  Lunde and
Bjoerseth, 1977).   This  compound 1s expected  to be physically  removed from
the atmosphere  by wet  and  dry  deposition  (Llgockl  et  al.,  1985a;  Tan  and
HeVt,  1981).   If  released  to  soil,  benzo[k]fluoranthene may  be susceptible
to slow  blodegradatlon under  aerobic conditions.  Under most  conditions,  1t
Is not expected to leach or  volatilize and may persist 1n soils.
    Human  exposure  to  benzo[k]fluoranthene   occurs  primarily  through  the
Inhalation of tobacco  smoke and  polluted  air  and by  the Ingestlon of contam-
inated food  and  water  (IARC,  1983).   The U.S.  EPA  (1982)  reported  that -96%
(2700 kkg) PAH  are emitted  to the atmosphere;  of  these  the total  release of
benzo[k]fluoranthene   comprises    -210    kkg/year.    The   compound   occurs
ubiquitously as  a product of  Incomplete  combustion  and naturally  In fossil
fuels  (IARC,  1983).  It has been widely detected  1n  drinking  water,  surface
water,  groundwater,  rainwater  and  aquatic   sediments   (see  Tables  3-1  and
3-2),   In many  foods  (Dennis  et  al.,  1983),   and  1n the  ambient  atmosphere
(see Table  3-3).  The presence  of  benzo[k]fluoranthene In food Is a result
of  contamination  from  a  polluted  environment and  formation during  the
cooking  process   (Santodonato  et al.,   1981;  Fazio  and  Howard,   1983).   The
average  dietary  Intake of benzo[k]fluoranthene In  England  has been estimated
to  be  0.06  yg/day  (Dennis   et al,  1983).    The  average  Intake  of  this
compound  from drinking  water  1n  the  United States  has  been  estimated  to

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 be  0.2 ng/day,  while the  Inhalation  Intake 1n  the  United States  has been
 estimated  to  be 0.6-20 ng/day.  Its concentration  1n  the ambient atmosphere
 has  apparently  been decreasing  over  the past 25  years  (Santodonato et al.,
 1981;  Gordon  and  Bryan,   1973).   The  higher  atmospheric levels  of  this
 compound  In  wintertime compared with summertime may be  due to Increased use
 of fossil  fuel  combustion for heating purposes (Greenberg et al., 1985).
     Data   concerning  the   toxldty   of  benzo[k]fluoranthene   to   aquatic
 organisms  could not be located  1n the available  literature as  cited  In the
 Appendix.   The   only  Information  consisted  of  monitoring  data  for various
 species  and  locations.   Residues  1n  species   that  are  commonly  eaten  by
 humans were mussels  1n Norway,  6-69 ng/g (Knutzen and  Sortland, 1982), clams
 1n  Japan,  0.12-0.92  ng/g  (Tsujl  et  al.,  1985),  and  lobster  from Eastern
 Canada, 0.35  ng/g  before  Impoundment  and 169  ng/g after  Impoundment (Dunn
 and  Fee, 1979).
     Information  regarding  the  absorption,   distribution  or  excretion  of
 benzo[k]fluoranthene  could  not  be  located  1n  the available  literature  as
 cited 1n the Appendix.
    IH  vitro  studies  with  rat  liver  preparations have  shown  that 8,9-dl-
 hydro-8,9-d1hydroxybenzo[k]fluoranthene  1s the major metabolite of benzofk]-
 fluoranthene (LaVole et al., 1980; Hecht et al.,  1980).
    Single Intrapulmonary Injections of  0.16,  0.83 or  4.15  mg benzo[k]fluor-
 anthene  (99.5%  pure)  In  beeswax  trloctanoln  mixture   Into groups  of  27-35
 rats produced dose-related  squamous cell carcinomas of the lung  after life-
 time observation (Deutsch-Wenzel et al.,  1983).   Tumors were not observed 1n
 groups  of  35  vehicle or  untreated controls,  and Incidences  In the  low-,
middle- and high-dose treated groups were 0/35, 3/31 and 12/27, respectively.
                                      v1

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    The cardnogenlcHy  of  benzo[k]fluoranthene has  also been evaluated  1n
dermal studies with mice Involving 2 or 3  times  weekly  applications  for  life
or 13  months  (Wynder  and Hoffman, 1959;  Habls  et  al., 1980),  1n  mouse-skin
Initiation-promotion assays  using  TPA as  a promoter  (LaVole  et   al.,  1982;
Amln et al., 1985), and  In a  subcutaneous  Injection  study In  which mice  were
given  three  Injections  at  monthly  Intervals   (Lacassagne  et  al.,  1963).
Benzo[k]fluoranthene was active  as an Initiator 1n  the Initiation-promotion
assays  and  produced  Injection  site  sarcomas   In   the  subcutaneous  study.
Interpretation of  the  subcutaneous Injection study  Is  complicated,  however,
by the  lack  of  vehicle  or  untreated controls and by an unspecified  observa-
tion period.
    Benzo[k]fluoranthene Induced mutations  In Salmonella  typhlmurlum strains
TA100  and  TA98  In  the  presence of  exogenous  metabolic  activation  prepara-
tions (LaVole et al.,  1980;  Hermann et al., 1980; Am1n et al.,  1985).
    Information regarding chronic  or subchronlc toxic  effects,  teratogenlc-
Hy  or other  reproductive  effects  of   benzo[k]fluoranthene  could not  be
located In the available literature as cited In  the  Appendix.
    There  was sufficient evidence that benzo[k]fluoranthene  1s  carcinogenic
to animals, but the lack of  studies  by a  relevant  route precluded derivation
of  a  q,*  based  on  data specific for  benzo[k]fluoranthene.   According  to
IARC  (1983), benzo[k]fluoranthene  1s a Group  2B  chemical, meaning that H Is
probably  carcinogenic  to humans.   The corresponding EPA classification  1s
B2.  Data were Insufficient  to derive an  RQ based on chronic toxlclty.

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                              TABLE  OF  CONTENTS
                                                                       Page
1.  INTRODUCTION	    1

    1.1.   STRUCTURE AND CAS NUMBER	    1
    1.2.   PHYSICAL AND CHEMICAL PROPERTIES 	    1
    1.3.   PRODUCTION DATA	    2
    1.4.   USE DATA	    2
    1.5.   SUMMARY	    2

2.  ENVIRONMENTAL FATE AND TRANSPORT PROCESSES	    3

    2.1.   WATER	    3

           2.1.1.   Hydrolysis	    3
           2.1.2.   Oxidation 	    3
           2.1.3.   Photolysis	    3
           2.1.4.   M1crob1al Degradation 	    3
           2.1.5.   Volatilization	    4
           2.1.6.   Adsorption	    4
           2.1.7.   B1oconcentrat1on	    4
           2.1.8.   Persistence 	    5

    2.2.   AIR	    5

           2.2.1.   Degradation 	    6
           2.2.2.   Physical Removal	    7

    2.3.   SOIL	    7

           2.3.1.   M1crob1al Degradation 	    7
           2.3.2.   Chemical Degradation	    7
           2.3.3.   Adsorption	    7
           2.3.4.   Volatilization	    8
           2.3.5.   Persistence 	    8

    2.4.   SUMMARY	    8

3.  EXPOSURE	   10

    3.1.   WATER	   10
    3.2.   FOOD	   14
    3.3.   INHALATION	   15
    3.4.   DERMAL	   17
    3.5.   SUMMARY	   17

4.  PHARMACOKINETCS	   18

    4.1.   ABSORPTION	   18
    4.2.   DISTRIBUTION	   18
    4.3.   METABOLISM	.v .  .  .  .   18
    4.4.   EXCRETION	   18
    4.5.   SUMMARY	   18

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                          TABLE  OF  CONTENTS  (cont.)

                                                                        Page
 5.  EFFECTS ..... 	   20

     5.1.   CARCINOGENICITY	   20
     5.2.   MUTAGENICITY	   21
     5.3.   TERATOGENICITY	   21
     5.4.   OTHER REPRODUCTIVE EFFECTS 	   21
     5.5.   CHRONIC AND SUBCHRONIC TOXICITY	   21
     5.6.   OTHER RELEVANT INFORMATION 	   24
     5.7.   SUMMARY	   24

 6.  AQUATIC TOXICITY	   25

     6.1.   ACUTE	   25
     6.2.   CHRONIC	   25
     6.3.   PLANTS	   25
     6.4.   RESIDUES	   25
     6.5.   SUMMARY	   27

 7.  EXISTING GUIDELINES AND STANDARDS 	   28

     7.1.   HUMAN	   28
     7.2.   AQUATIC	   29

 8.  RISK ASSESSMENT	   30

 9.  REPORTABLE QUANTITIES	31

     9.1.   REPORTABLE QUANTITY (RQ) RANKING BASED ON CHRONIC
            TOXICITY	   31
     9.2.   WEIGHT OF EVIDENCE AND POTENCY FACTOR (F=1/ED10)
            FOR CARCINOGENICITY	   31

10.  REFERENCES	   34

APPENDIX: LITERATURE SEARCHED. . .	   45
                                      1x

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                               LIST OF TABLES
No.
3-1
3-2
3-3
Title
Benzo[k]fluoranthene Monitoring Data for Various Types
of Water 	
U.S. Sediment Monitoring Data for Benzo[k]fluoranthene. . . .
U.S. A1r Monitoring Data for Benzo[k]f1uoranthene During
1979-1983 	
Pag
11
13
16
5-1     Dermal Injection Carc1nogen1c1ty Studies of
        Benzo[k]f1uoranthene	   22

5-2     MutagenlcHy Testing of Benzo[k]fluoranthene	   23

6-1     Monitoring Data for Benzo[k]f1uoranthene In Marine
        Species from Norwegian Waters 	   26

9-1     Benzo[k]fluoranthene:  Minimum Effective Dose (MED) and
        Reportable Quantity (RQ)	   32

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                             LIST  OF  ABBREVIATIONS
BCF                     Bloconcentratlon factor
CAS                     Chemical Abstracts Service
Koc                     Soil sorptlon coefficient
Kow                     Octanol/water partition coefficient
PAH                     Polycycllc aromatic hydrocarbons
ppb                     Parts per billion
ppm                     Parts per million
ppt                     Parts per trillion
TLV                     Threshold limit value
TPA                     Terephthallc acid
TWA                     Time-weighted average
UV                      Ultraviolet
                                      x1

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                               1.  INTRODUCTION
1.1.   STRUCTURE AND CAS NUMBER
    The  chemical  commonly  called  benzo[k]fluoranthene   1s  also  known  as
11,12-benzofluoranthene;  8,9-benzfluoranthene;  B[k]F;  and  11,12-benzo[k]-
fluoranthene  (U.S.  EPA,  1986a;  Santodonato et  al.f  1981).  The  structure,
empirical  formula,  molecular  weight  and  CAS  Registry  number   for  this
chemical are as follows:
Empirical formula:   C?0H12
Molecular weight:    252.32
CAS Registry number: 207-08-9
1.2.   PHYSICAL AND CHEMICAL PROPERTIES
    Benzo[k]fluoranthene  Is  a  pale   yellow   crystalline  solid  at  ambient
temperatures.  It  Is  soluble In ethanol, benzene and  acetic  add,  but prac-
tically  Insoluble  In  water  (Weast, 1980).   Some of the  physical  properties
of this compound are listed below:
Melting point:               217°C
Boiling point:               480°C
Water solubility at 25°C:    0.76
Log K
     ow
Vapor pressure at 25°C:
6.04-6.44
(estimated)
9.59X10""11 mm Hg
Weast, 1980
Weast. 1980
Pearlman et a!.,
1984
Readman et al., 1982;
Ruepert et al., 1985
Santodonato et al.,
1981
0865p
       -1-
             03/23/87

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Henry's Law constant:        4.19xlO~8 atmos-mVmol
                             (estimated)

    Since this compound 1s a PAH,  H  Is  expected  to  be reasonably chemically
reactive.  It can undergo substitution and addition  reaction,  and 1s  suscep-
tible  to oxidation  by  ozone,  peroxides  and  other  oxldants  (NAS,  1972).
Frequently,   dlone  1s  the  product of  such  oxidation, although  dlmerlzatlon
may occur In some cases (NAS, 1972).
1.3.   PRODUCTION DATA
    Benzo[k]fluoranthene 1s  neither  commercially  produced nor  Imported  Into
the United States (IARC, 1983;  USITC. 1984).
1.4.   USE DATA
    There 1s  no  known  commercial  use of benzo[k]fluoranthene  (IARC,  1983).
Small amounts of  this compound  are used for  scientific research.
1.5.   SUMMARY
    Benzo[k]fluoranthene 1s a pale yellow solid at ambient  temperatures.   It
1s soluble in ethancl,  benzene and acetic add, but  1s practically Insoluble
1n water  (Weast,  1980;  Pearlman et al.,  1984).  This compound Is susceptible
to oxidation  by  ozone, peroxides  and  other  oxldants.  Frequently,  dlone  1s
the product of such  oxidation, although  dlmerlzatlon may  occur 1n some cases
(NAS, 1972).  Benzo[k]fluoranthene Is  neither  commercially  produced  nor  used
In the United States (IARC,  1983).
0865p                               -2-                              10/31/86

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                2.  ENVIRONMENTAL FATE AND TRANSPORT PROCESSES
2.1.   HATER
2.1.1.   Hydrolysis.     Benzo[k]fluoranthene   contains    no   hydrolyzable
functional  groups;  therefore, hydrolysis  1s not expected  to be significant
(Mabey et al., 1981).
2.1.2.   Oxidation.  The  rate constants  for the  oxidation  of benzo[k]fluor-
anthene  with  photochemlcally   produced   R02   radical   and  10_  have  been
estimated   to  be   5xlOa   and  4xl07  M""1   hour'1,   respectively,   at  25°C
(Mabey  et  al.,  1981).   Assuming  the  RO-  radical  and 10p concentrations
of  natural  waters  are  10~» and  10~12 M  {Mabey  et   al.,  .1981),  respec-
tively,  the respective half-lives  are  estimated  to  be 15.8  and  2.0 years.
Therefore,  these reactions are not environmentally significant.
2.1.3.   Photolysis.    In   a   cyclohexane   solvent,   benzo[k]fluoranthene
exhibits UV absorption maxima at 295,  306,  358, 370,  378  and 400  nm (IARC,
1983); therefore,  direct  photolysis  1n  sunlight  Is a possibility.   Muel and
Saguem  (1985)  exposed a  28.6  yg/SL  n-heptane  solution   of benzo[k]fluor-
anthene  to  1  month of November  sunlight  and  found that  72%  had  degraded
after the exposure  period.   This would  suggest  that direct  photolysis In the
dissolved state 1n the water column 1s possible.
    The  majority  of benzo[k]fluoranthene  will  be  present,  however,  1n the
partlcle-sorbed  state  1n   water   (Section   2.1.6.)  and   may  not  readily
photolyze.   Therefore, photolysis  may  be  relatively   more   significant  1n
shallow,  clear water  than 1n deep, turbid  water.  Overall, photodegradatlon
may not be as Important as other processes 1n water.
2.1.4.   M1crob1al  Degradation.   Fochtman   (1981)  examined  the  blodegrad-
abllHy  of  benzo[k]fluoranthene  1n a  static culture flask-screening proce-
dure 1n which 1% of the compound was  dissolved 1n an emulslfler and added to


0865p                               -3-                               10/31/86

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the  bacterial  suspension  (domestic  wastewater  seed) at  a concentration  of
1-2  ppm.    The  suspension  was  Incubated  for  7  days.    A  fresh  bacterial
suspension was prepared weekly using the seed from the previous  week  and the
procedure was  continued for  28  days.   Approximately 54% of  the  benzo[k]-
fluoranthene was typically  degraded during  a  7-day Incubation.
    In  natural  waters,  PAH  with  four  or  more  aromatic  rings  are  degraded
slowly by microbes, and  blodegradatlon  1s  considered  to be the ultimate fate
process  (U.S.   EPA,  1986a);   however,  the concentrations  of  microorganisms
capable of  oxidizing  the hydrocarbons  are extremely  low   1n all  but  heavily
polluted fresh  and marine  waters,  and most species of microorganisms  cannot
use PAH as  a sole  carbon source.   M1crob1al  oxidation of  PAH  requires oxygen
and will not proceed 1n anoxlc sediments or water (U.S.  EPA,  1986a).
2.1.5.   Volatilization.   Based  on  a  water  solubility  of  0.00076  ppm  at
25°C  (Pearlman  et  al.,  1984}  and a  vapor pressure  of  9.59X10"11 mm  Hg  at
25°C  (Santodonato  et  al., 1981),  Henry's Law  constant   for  benzo[k]fluor-
anthene  can  be  estimated   to  be  4.2xlO~8  atm-mVmol.  This  value  of
Henry's Law constant  Indicates that benzo[k]fluoranthene  1s not expected  to
volatilize significantly from the aquatic environment  (Lyman et al.,  1982).
2.1.6.   Adsorption.   The  estimated  K    value   of   benzo[k]fluoranthene  1s
nearly 1 million (Section  2.3.3.)  and the widespread detection  of benzo[k]-
fluoranthene 1n  various sediments  (Section  3.1.)  Indicates that adsorption
to suspended partlculate matters and  sediments  1s an  Important environmental
fate  process.   Movement  by   sediments  1s  considered  to be  an  Important
transport process for PAH (U.S. EPA, 1986a).
2.1.7.   B1oconcentrat1on.   Estimation  of  BCF  can  be made from the  follow-
ing equations (Lyman et al.,  1982):
                         log  BCF  =  0.76  log KQW - 0.23                  (2-1)
              log BCF  = 2.791-0.564 log  water solubility (1n ppm)       (2-2)

0865p                               -4-                              10/31/86

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 Based  on a water  solubility  of  0.00076 ppm at  25°C  (Pearlman  et al., 1984)
 and  a  log KQW  of 6.12  (U.S.  EPA,  1986b),  the  BCF values  estimated from
 Equations  2-1  and  2-2  for   benz-o[k]fluoranthene  are   35,500   and  26,400,
 respectively,  which  suggest   significant   bloaccumulatlon  potential.   PAH,
 however,  may  not appreciably bloconcentrate  1n organisms such  as  fish that
 have  mlcrosomal  oxldase because this enzyme metabolizes  PAH  (Santodonato et
 al.,  1981).   Therefore,  the  bloaccumulatlon potential  may be  dependent  on
 the organism being considered.
 2.1.8.   Persistence.   Tan and  He1t (1981) monitored  sediment  cores  taken
 from  Woods Lake  In  the  remote  Adirondack  Forest of  upstate  New  York  for
 various  PAH.   The  following  benzo[k]fluoranthene concentrations  (ng/g  dry
 sediment)  were  found  at  various  depths:   560  (0-4 cm),  180  (4-8  cm),  11
 (8-11  cm), 4  (12-17  cm),  7 (24-26  cm),  5  (42-44  cm) and 8  (80-84  cm).  The
 constancy  1n  the concentration  of  benzo[k]fluoranthene  In the  deeper sedi-
 ment 'cores Indicates  that  the  compound 1s  very  persistent  under  anaerobic
 and dark conditions present 1n the deep sediment cores.
 2.2.   AIR
    Benzo[k]fluoranthene  exists  1n  the  ambient atmosphere predominantly  1n
 partlculate-assodated  form.    From  their  ambient   air   monitoring  data
 collected  1n  Portland,  OR,  Llgockl  et al.  (1985a,b)  found  the combined mean
 benzo[b,j,k]fluoranthene  concentration  1n  the  vapor  phase  was  0.11  ng/m3,
while  the  combined  mean  concentration  of  the  same  three  compounds  In  the
 partlculate  phase  was  3.4  ng/m3.   Yamasakl   et al.   (1985)   conducted  a
 laboratory experiment  1n  which ambient  airborne partlculates  were exposed to
 PAH-free  air  for  48  hours at  9.1°C and  found that  -95% of  the  benzo[k]-
 fluoranthene  remained  adsorbed   to  the  partlculates.   Cautreels  and  Van
Cauwenberghe  (1978)  found that  the  concentration  of  benzo[k]fluroanthene 1n
0865p                               -5-                              10/31/86

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the participate phase was -12 times higher  than  Us  concentration  1n  the  gas
phase.   In  a monitoring  study  of  the air  over  the  tropical and  equatorial
eastern Atlantic Ocean, Marty et al.  (1984)  detected  benzo[k]fluoranthene 1n
the partlculates  but  not 1n  the  vapor phase.   The  form In which  benzo[k]-
fluoranthene  exists   In  the  atmosphere  has  a  significant  bearing  on  Its
environmental fate.   In  general,  the compound will  be less reactive  In  the
participate phase than 1n the gas  phase.
2.2.1.   Degradation.    Lane  and   Katz  (1977)  used  simulated  atmospheric
conditions  to  expose  pure  benzo[k]fluoranthene  to  ozone, a Quartzllne  lamp
with  spectral distribution  very close to  solar distribution between  295  and
400 nm,  or  a combination of  both  light and  ozone.   The half-life using UV
light only  was  14.1  hours,  while  the half-life with  ozone  (0.19  ppm)  1n  the
dark  was  34.9 hours;  a  combination  of both light and  ozone  resulted In  a
half-life of 3.9 hours.  These results suggest that  a combination of  photol-
ysis  1n  the presence  of  ozone may Induce  faster  transformation of benzo[k]-
fluoranthene than either  of the  processes  alone.  It  1s,  however,  difficult
to  assess  the  significance  of  this  reaction   In   the  ambient  atmosphere
because  the concentrations  of 0.,  used  In  these experiments  were  higher
than normally found In the atmosphere.
    The  half-life  for the vapor  phase reaction  of benzo[k]fluoranthene  with
photochemlcally produced HO radical  has  been estimated to be ~1  day  at  25°C
assuming  an  average  atmospheric   HO   radical   concentration   of   8xl05
molecules/cm3 (U.S. EPA,  1986b).
    Data  specific  to  the degradation of partlculate  adsorbed  benzo[k]fluor-
anthene  could  not be located In the available   literature  as  cited  1n  the
Appendix.   Behymer  and HHes  (1985)  examined the atmospheric  photodegrada-
tlon  of  15  other  PAHs that were adsorbed  to various  substrates (silica  gel,
0865p                               -6-                              03/23/87

-------
alumina,  fly ash  and carbon  black)  by  using  a  laboratory  photoreactor to
simulate  atmospheric  conditions.   In  general,  significant   photolysis  was
observed when  the  adsorbing substrate was either  silica  gel,  alumina or fly
ash;  however,  carbon black adsorption  clearly  stabilized the phototransfor-
matlon  of  the  PAH.  In the atmosphere,  adsorption to stabilizing substrates
will  allow  PAH  to  be  transported over  long-  distances  1n  the  atmospheric
aerosol  because   of  Increased  persistence.   Lunde  and  BJoerseth  (1977)
reported   that   benzo[k]fluoranthene   was  transported  In " the  atmospheric
aerosol from England to Norway.
2.2.2.   Physical  Removal.   Removal  of  adsorbed  benzo[k)fluoranthene  from
the  atmosphere  may occur by wet and  dry deposition.  Partlculate-assoclated
benzo[k]fluoranthene has been  detected  In rainwater  {L1gock1  et al., 1985b).
The  presence of  benzo[k]flouranthene  1n lake  sediments  In  the Adirondack
Forest  In  New York has  been attributed to physical Deposition (Tan and He1t,
1981).  Dissolved  benzo[k]fluoranthene has  also been detected  1n rainwater
(Llgockl  et al.,  1985a),   suggesting  that  physical  removal  by  washout or
dissolution Into clouds with subsequent rainfall may be possible.
2.3.   SOIL
2.3.1.   H1crob1al  Degradation.   Benzo[k]fluoranthene  may possibly  undergo
slow  blodegradatlon  1n soil under  aerobic conditions (see  Section  2.1.4.);
however, additional  experimental  data  are required  to  predict  the  rate at
which blodegradatlon may occur.
2.3.2.   Chemical  Degradation.  No data are  available  to  Indicate  that
benzo[k]fluoranthene Is transformed chemically In natural soils.
2.3.3.   Adsorption.   Estimation  of  K    can  be  made  from  the  following
regression equations (Lyman et  al.,  1982):
           log K  =0.44-0.54 log water solubility (1n mol fraction)     (2-3)
                           log  KQC=1.00  log KQW-0.21                     (2-4)

0865p                               -7-                              03/23/87

-------
Based on  a water  solubility  of 0.76  yg/8.  (Pearlman et  al.,  1984) at  25°C
and  a  log  KQW of  6.12  (U.S.  EPA,  19865),  the KQC  values estimated  from
Equations  2-3  and 2-4  for  benzo[k]fluoranthene are  0.96 and 0.81  million,
respectively,  which  suggest  soil  Immobility.   The  detection  of  benzo[k]-
fluoranthene 1n several groundwaters (Section  3.1.),  however,  Indicates  that
leaching can occur.  This  leaching may occur under  certain  conditions,  such
as  from  soils with  low organic content  (e.g., sand)  or high porosity,  or
from sites  that  have  been  exposed  to  spills  or chemical wastes  containing
benzo[k]fluoranthene.  Benzo[k]fluoranthene Is  not  expected  to  leach In  soil
under most other  conditions.
2.3.4.    Volatilization.  Volatilization  of benzo[k]fluoranthene  from soils
1s not  .expected to be an Important  process (S1ms and Overcash,  1983).
2.3.5.    Persistence.  When seven  applications  of  PAH-contalnlng oil  sludge
was  amended  to a  sandy loam  soil  over a  2-year period, and  then  monitored
for  an additional  1.5  years,  30% of the  total  benzo[k]fluoranthene applica-
tion remained  after  the total 3.5  years  (Bossert et  al., 1984).   Therefore,
this compound Is  expected  to persist  1n most soils.
2.4.   SUMMARY
     If   released   to  the  aquatic  environment,  benzo[k]fluoranthene  1s  not
expected  to  hydrolyze,  oxidize  (by   ROp  radical   or   ^O^)  or  volatilize
significantly  (Mabey et al.,  1981;  Lyman  et  al.,  1982).   A  static culture
flask-screening blodegradatlon  study with  domestic  wastewater  seed has shown
that benzo[k]fluoranthene can be significantly blodegraded (Fochtman,  1981);
however, microblal oxidation  of PAH  requires oxygen  and  will  not proceed 1n
anoxlc  sediments  or  water  (U.S. EPA, 1986a).   In natural water,  blodegrada-
tlon Is  expected  to  be slow.    In  the  dissolved state,  direct photolysis may
0865p                               -8-                              03/23/87

-------
be  significant  1n the water  column;  however,  photolysis will  be Insignifi-
cant  1n deep,  turbid  waters.  Adsorption  to  suspended  partlculate  matters
and sediments In  water  1s  an  Important  environmental  fate process (U.S. EPA,
1986a).  The  very low  water  solubility and  high log K    of  benzo[k]fluor-
anthene  suggest a significant  potential  for  bloaccumulatlon;  however,  PAH
may  not appreciably  bloconcentrate  1n organisms  such  as fish that  have
mlcrosomal  oxldase because this metabolizes PAH  (Santodonato  et al.,  1981).
Therefore,  bloaccumulatlon  potential  may be dependent on  the  organism being
considered.   The nonvar1abH1ty  of  benzo[k]fluoranthene  concentrations  In
bottom  sediment cores  1n  remote  lakes  (Tan and  Belt,  1981)  Indicate that
benzo[k]fluoranthene 1s  very  persistent  under anaerobic  and dark conditions.
If  released to  the  atmosphere, benzo[k]fluoranthene will  exist  primarily In
the partlculate (adsorbed)  phase, although  vapor  phase  benzo[k]fluoranthene
may also  be present.   Vapor  phase  benzo[k]fluoranthene  appears   susceptible
to  significant  transformation by  direct  photolysis  and  reaction  with ozone
and HO  radical   {Lane  and  Katz,  1977;  U.S. EPA, 1986b).   Partlculate phase
benzo[k]fluoranthene  may be more  resistant  to reactions  as  Indicated  by long
distance transport of  the atmospheric aerosol (Tan and  Helt,  1981; Lunde and
Bjoerseth,  1977).  This  compound 1s  expected  to be physically  removed from
the atmosphere  by wet  and dry  deposition  (Llgockl  et  al.,  1985a; Tan  and
He1t,  1981).   If released  to soil,  benzo[k]fluoranthene may  be susceptible
to  slow  blodegradatlon under  aerobic conditions.  Under  most  conditions, It
1s not expected to leach or volatilize and may persist 1n soils.
0865p                               -9-                              03/23/87

-------
                                 3.   EXPOSURE

    Human  exposure  to  benzo[k]fluoranthene  occurs  primarily  through  the
Inhalation  of  tobacco  smoke  and  polluted  air   and  by  the  Ingestlon  of
contaminated  food  and  water  (IARC,  1983).  The compound  occurs  ubiquitously
as a  product  of Incomplete combustion  and  occurs naturally  1n  fossil  fuels
(IARC, 1983).
3.1.    HATER
    Table 3-1  lists  various  benzo[k]fluoranthene monitoring  data  for  drink-
Ing  water,  groundwater,  surface   water  and  rainwater;  Table  3-2   lists
sediment monitoring data  for  various  U.S. locations.  In an  analysis  of the
U.S.  EPA STORET  database,  benzo[k]fluoranthene  was detected  In  1.8% of  1248
effluents and 3.0% of  873 surface  waters  (Staples et  al., 1985).   Grlest
(1980)  detected benzo[b,j  and  k]fluoranthene  at  a  concentration  of  23.0
yg/g  (dry  sediment) 1n  the  sediment of  an effluent  channel from a  coking
plant.   Benzo[k]fluoranthene  was  also  Identified  1n  the  effluent  from  a
sewage  treatment   plant   at   levels   <12  ppt  (Kveseth  et   al.,   1982).
Shackelford and  Keith  (1976) detected benzo[k]fluoranthene  1n effluents  from
chemical plants, sewage treatment plants  and  In raw  sewage.   In  the  prelimi-
nary  findings  of  the  U.S. EPA  Nationwide  Urban  Runoff  Program,  benzo[k]-
fluoranthene  was  detected In  the  stormwater  runoff from Bellevue,  WA,  and
Lake Qulnslgamond,  MA,  at levels  of  4-10 ppb (Cole et al., 1984).
    In general,  PAH can be released  to water  from  Industrial and municipal
treatment  plant  effluents,   atmospheric  fallout  and  precipitation,   road
runoff  (tire  wear, bitumen and  asphalt surfaces, cracked  lubricating  oils)
and marine  shipping and  harbor  oil  (Santodonato  et al,  1981).   Sorrell  et
0865p                               -10-                             10/31/86

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0865p
-12-
10/31/86

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                                   TABLE  3-2
            U.S. Sediment Monitoring Data for Benzo[k]fluoranthene
Concentration
(ng/g)
12-26a
8-UOa
88-250b
16-550b
2.9-86 (mean)c
560 (0-4 cm depth)
180 (4-8 cm depth)
8 (80-84 cm depth)
120 (0-4 cm depth)
110 (4-8 cm depth)
2 (71-75 cm depth)
14-696
Location
Washington State
(river bottom sediment)
Columbia River
(suspended sediment)
Cayuga Lake, NY
(deepwater sediment)
Cayuga Lake, NY
(littoral sediment)
Lake Pontchartraln, LA
Woods Lake, NY
Woods Lake, NY
Woods Lake, NY
Sagamore Lake, NY
Sagamore Lake, NY
Sagamore Lake, NY
Penobscot Bay,
Gulf of Maine
Sampling
Date
1979-1980
1979-1980
1978
1978
1980
NR
NR
NR
NR
NR
NR
1982
Reference
Prahl
et al., 1984

He1t, 1985

McFall
et al., 1985
Tan and
He1t, 1981
Johnson
et al., 1985
aBenzo[j+k]fluoranthene
bBenzo[b+k]fluoranthene
GUnspec1f1ed Isomers
NR = Not reported
0865p
-13-
10/31/86

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al.  (1980)  suggested that benzo[k]fluoranthene  and  other PAHs may  contami-
nate  drinking  water supplies  as  a  result  of  coal   tar  or  asphalt-based
materials used to line transmission pipes and storage tanks.
    Based on the monitoring data  from Table  3-1,  the concentration of benzo-
[k]fluoranthene  In  drinking water  may  be on  the order  of  0.1 ppt  (ng/i).
Assuming an  average dally water  Intake of  2.0 i for  an adult,  the Intake
of benzo[k]fluoranthene from drinking water 1s  estimated to be 0.2  ng/day.
3.2.   FOOD
    In general,  PAHs  found  1n  food are present  as a result  of contamination
from  a  polluted  environment   or  are  formed  during  the  cooking  process
(Santodonato et  al., 1981; Fazio and Howard,  1983);  minute  amounts  of  the
chemical may  originate  from geochemlcal  or  blosynthetlc sources  (Fazio  and
Howard, 1983).
    Fazio and Howard  (1983) reported  the  detection of  benzo[k]fluorathene 1n
oysters, very  dark  coffee (0-0.8  jig/kg)  and cooked  Japanese  horse  mackerel
(0.2 yg/kg).
    Dennis  et   al.   (1983)  examined  total  diet  samples  of  food  groups  In
England and found  the  following mean  benzo[k]fluoranthene concentrations  (1n
vg/kg)  In  the   various  food  groups:   cereals  (0.08),  meat (0.01),  fish
(0.04),   oils   and   fats   (0.32),   fruit   and  sugar   (0.02),   vegetables
(0.02-0.07), beverages  (0.003)  and milk  (0.003).   The  total  benzo[k]fluor-
anthene  dietary load  was  estimated  to  be  0.06 ug/person/day   (Dennis  et
al.,  1983).   Based  on  the monitoring  of total  diet  market  basket  samples
collected  1n  the  Netherlands,  Vaessen   et  al.  (1984)  estimated  the median
Intake of benzo[b+j+k]fluoranthene to be 0.1  yg/day.
0865p                               -14-                             03/23/87

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3.3.   INHALATION
    Table 3-3  lists  recent (1979^-1983) U.S. ambient  air  monitoring data for
benzo[k]fluoranthene;  In  general,  the  mean average concentration detected 1s
<1.0  ng/m3.   Ambient  air  monitoring  data   for  benzo[k]fluoranthene  from
1958  to  the mid-1970s (Santodonato et  a!.,  1981;  Gordon and  Bryan,  1973)
suggest  that  the ambient  atmospheric  load of  benzo[k]fluoranthene has  been
generally decreasing  over the past  25 years,  possibly  because  of decreases
In  coal  consumption  for  residential  heating  and Industrial  uses. Improved
disposal methods  of  solid wastes,  restrictions on open  burning  and Improved
efficiencies  for  stationary  Incineration  and  combustion  operations  and
Improvement of  pollution  control.   The  higher atmospheric levels  of  benzo-
[k]fluoranthene  In wintertime  verus  summertime air In New Jersey (see Table
3-3) may be a  reflection  of the Increased use of  fossil fuel combustion for
heating purposes.
    Assuming the  approximate average ambient air  concentrations  of benzo[k]-
fluoranthene  In  the   United  States  range from  0.03-1.0  ng/m3  (see  Table
3-3)  and an  Individual  air  Intake  of  20 ma/day,  the  average  Intake  Is
estimated to be  0.6-20 ng/day.  Matsumoto  and  Kashlmoto  (1985) used Japanese
monitoring data to estimate an average dally Intake of 15 ng.
    In general,  -96%  (27000  kkg)  PAH  are  emitted  to  the atmosphere.  Of the
atmospheric emissions  combustion  of fossil  fuels  (oil,   coal),  gasoline and
dlesel exhaust,  open  burning  (agricultural burning,  forest fires, structural
fires,  refuse   burning),   the  burning  of  wood  especially  for  residential
heating  (NRC,  1983)  and  municipal/Industrial  Incineration comprise -99% of
the benzo[a]pyrene group  PAHs.  U.S. EPA  (1982) reported  an  estimate  of 210
kkg/year  benzo[k]fluoranthene released  to the environment.
0865p                               -15-                             08/11/87

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                                   TABLE  3-3
      U.S. A1r Monitoring Data for Benzo[k]f"luoranthene During 1979-1983
Concentration
(ng/m3)
0.18 (average)*
0.19 (average)*
0.41 (average)*
0.11
(mean gas-phase)
3.4 (average
participate phase)*
0.03-0.3
(participate phase)
0.03-0.20 (mean)
0.28-0.97 (mean)
0.04-0.11 (mean)
0.08-0.63 (mean)
Location
Qulllayute, WA
Sequlm, WA
Seattle, WA
Portland, OR
Portland, OR
Columbia, SC
4 cities - New Jersey
4 cities - New Jersey
4 cities - New Jersey
4 cities - New Jersey
Sampling
Date
1979
1979
1979
1984
1984
1982
Summer 1981
Winter 1982
Summer 1982
Winter 1983
Reference
Prahl et al.,
1984
L1gock1
et al., 1985a
Llgockl
et al., 1985b
Keller and
Bldleman, 1984
Harkov et al.,
1984
Greenberg
et al., 1985
*Benzo[b+j *k]fluoranthenes
0865p
-16-
10/31/86

-------
Benzo[k]fluoranthene  was  Identified  In mainstream  cigarette  smoke  (0.7-12
ng/dgarette)  and   mainstream   marijuana   smoke  (11   ng/c1garette)   (IARC,
1983).   The concentration  of  benzo[k]fluoranthene  detected  In  various  fly
ash samples ranged from not detected to 23 ng/g (Elceman et a!., 1981).
3.4.   DERMAL
    Pertinent  dermal  monitoring  data could  not  be  located  In  the available
literature as cited  1n the Appendix.
3.5.   SUMMARY
    Human  exposure  to  benzo[k]fluoranthene  occurs  primarily  through  the
Inhalation of  tobacco  smoke and  polluted air and by  the Ingestlon of contam-
inated food  and  water (IARC, 1983).   The  compound  occurs  ubiquitously  as  a
product of  Incomplete  combustion and  naturally In  fossil  fuels  (IARC, 1983).
It  has  been widely  detected  In  drinking water, surface  water,  groundwater,
rainwater  and  aquatic  sediments  (see  Tables  3-1  and 3-2),  1n  many  foods
(Dennis et  a!.,  1983), and  1n  the ambient  atmosphere  (see  Table  3-3).   The
presence of benzo[k]fluoranthene 1n  food 1s  a result of contamination from a
polluted environment  and  formation  during   the  cooking process  (Santodonato
et al., 1981;  Fazio  and  Howard,  1983).   The  average  dietary Intake of benzo-
[kjfluoranthene  1n  England has  been  estimated to  be  0.06  tig/day  (Dennis et
al., 1983).  The average Intake  of this compound  from drinking  water In the
United States  has  been   estimated  to  be  0.2  ng/day,  while the  Inhalation
Intake 1n  the United  States  has  been  estimated  to be 0.6-20  ng/day.   Its
concentration  In  the ambient  atmosphere has  apparently been  decreasing  over
the past 25  years {Santodonato  et  al., 1981; Gordon  and  Bryan,  1973).   The
higher atmospheric   levels of  this  compound  1n  wintertime  compared  with
summertime  may be due  to  Increased  use  of  fossil fuel  combustion for heating
purposes  (Greenberg et al., 1985).


0865p                               -17-                             08/11/87

-------
                             4.   PHARHACOKINETICS
4.1.   ABSORPTION
    Specific data  regarding  the gastrointestinal or pulmonary  absorption  of
benzo[k]fluoranthene  could  not  be  located  In  the  available  literature  as
cited  In  the Appendix.   Data' from other  structurally  related PAH  suggest,
however, that benzo[k]fluoranthene  1s absorbed  readily  from the gastrointes-
tinal  tract  (Rees  et  a!.,  1971) and  lungs" (Kotln  et  al., 1969; Valnlo  et
al.,  1976).   In general, PAH  are highly  Upld  soluble and can  pass  across
epithelial membranes (U.S. EPA,  1980a).
4.2.   DISTRIBUTION
    Pertinent data  regarding  the distribution  of  benzo[k]fluoranthene could
not be located 1n the available literature as dted 1n the Appendix.
4.3.   METABOLISM
    8,9-D1hydro-8,9-d1hydroxy  benzo[k]fluoranthene  has  been   Identified  as
the major  metabolite of benzo[k]fluoranthene In j£  vitro  metabolism studies
with  rat  liver  S-9  preparations  (LaVole  et al., 1980; Hecht  et  al.,  1980).
Benzo[k]fluoranthene-8,9-epox1de was  not   Isolated but  considered to  be the
Hkely  precursor  of  the  8,9-d1hydrod1ol.   Indirect  evidence   (mutagenldty)
suggests that the 8,9-dlhydrodlol may form a dlhydrodlol-epoxlde.
4.4.   EXCRETION
    Pertinent data  regarding the excretion of  benzo[k]fluoranthene could not
be located 1n the available literature as cited  1n the Appendix.
4.5.   SUMMARY
    Information  regarding  the  absorption,  distribution  or  excretion  of
benzo[k]fluoranthene  could  not  be  located  1n  the  available  literature  as
cited  1n the Appendix.
0865p                               -18-                             08/11/87

-------
    In  vitro  studies with  rat  liver  preparations have  shown  that  8,9-dl-
hydro-8,9-d1hydroxybenzo[k]fluoranthene Is the  major  metabolite of benzo[k]-
fluoranthene (LaVole et al., 1980; Hecht et al., 1980).
0865p                               -19-                             08/11/87

-------
                                 5.  EFFECTS
5.1.   CARCINOGENICITY
    Studies  evaluating  the  tumorlgenic  potential   of   orally-administered
benzo[k]fluoranthene  could  not  be  located  1n the  available literature  as
cited 1n the Appendix.
    Mixtures of  heated beeswax  and  trloctanoln  (1:1) containing 0.16,  0.83'
or  4.15  mg  benzo[k]fluoranthene (99.5% pure)  were   Injected  Into  the  left
lung lobes  of  35,  31  and 27 female Osborne-Mendel rats,  respectively,  after
thoracotomy  (Deutsch-Wenzel  et  a!.,  1983).   Additional  groups  of  35  rats
served as vehicle, untreated and positive  (0.1, 0.3  or 1.0  mg benzo[a]pyrene
controls.   Necropsies were  performed  on  all  rats  at  the  time of  natural
death or  when  moribund, but  hlstologlcal  examinations were  limited to  the
lungs and  organs  showing  gross abnormalities.   Median  survival times  were
114,  95,  98,  104 and  118 weeks  In the  low-dose,   middle-dose,  high-dose,
vehicle and  untreated control  groups,  respectively.  Median  survival  times
for positive controls  were  111, 77  and 54 weeks  at  Us low,  medium  and high
dose  benzo[a]pyrene  respectively.   Squamous  cell  carcinomas  of  the  lung
occurred 1n  the  benzo[k]fluoranthene-treated mice  at  Incidences  of 0/35 (low
dose),  3/31  (middle  dose)  and 12/27  (high  dose).   Lung  tumors  were  not
observed  In  either the  vehicle or  untreated  control groups but did  occur
(carcinomas) at   dose-related   Incidences  1n  the positive  controls  (4/35,
21/35,   33/35).    The   dose-related   pulmonary   tumor    response   In   the
benzo[k]fluoranthene-treated mice  was  considered  to be   a  treatment-related
effect.
    The carclnogenldty of  benzo[k]fluoranthene was  also  evaluated  In  dermal
studies with mice  Involving 2 or 3 times  weekly  applications  for  life  or 13
months (Wynder  and Hoffman, 1959; Habls  et al.,  1980),  1n mouse-skin Initia-
tion-promotion  assays  using TPA as  a promoter (LaVole et  al.,  1982;  Am1n et

0865p                               -20-                             08/11/87

-------
al.,  1985)  and  1n  a subcutaneous Injection  study  In which mice  were given
three  Injections  at  monthly  Intervals  (Lacassagne  et  al.,  1963).   As
detailed  In  Table 5-1,  benzo[k]fluoranthene  was active  as an  Initiator  1n
the  Initiation-promotion  assays  and  produced Injection site  sarcomas  In the
subcutaneous  study.   Interpretation  of  the  subcutaneous   Injection  study  1s
complicated, however, by  the  lack  of  vehicle  or untreated controls and by an
unspecified observation period.
5.2.   MUTAGENICITY
    Benzo[k]fluoranthene  was  reported  to  Induce  mutations   1n  Salmonella
typh1mur1um strains  TA100 (LaVole  et  al., 1980;  Am1n  et  al.,  1985)  and TA98
(Hermann  et  al.,   1980)  when  assayed  In  the  presence  of  rat  liver  S-9
metabolic activation preparations  (Table 5-2).    The  chemical  was  not  tested
In the absence of S-9.
    Additional  genotoxlclty  data  for  benzo[k]fluoranthene  could  not  be
located 1n the available  literature as cited In the Appendix.
5.3.   TERATOGENICITY
    Pertinent  data  regarding  the  teratogenldty  of  benzo[k]fluoranthene
could not be located In the available literature as cited In the Appendix.
5.4.   OTHER REPRODUCTIVE EFFECTS
    Pertinent  data   regarding  other   reproductive effects  of  benzo[k]fluor-
anthene  could  not  be  located 1n  the available  literature as cited  1n the
Appendix.
5.5.   CHRONIC AND SUBCHRONIC TOXICITY
    Pertinent  data  regarding  the  of  benzo[k]fluoranthene  could  not  be
located In the available  literature as cited 1n the Appendix.
0865p                               -21-                             08/11/87

-------






















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5.6.   OTHER RELEVANT INFORMATION
    Dally  IntrapeMtoneal  Injections of  0.05-40 mg/kg  benzo[k]fluoranthene
In  arachls oil  for  3  days produced  dose-related  Increases  In  liver  aryl
hydrocarbon monooxygenase activity 1n rats (Schmoldt  et  al.,  1981).
5.7.   SUMMARY
    Single Intrapulmonary Injections of 0.16, 0.83 or 4.15 mg  benzo[k]fluor-
anthene  {99.5% pure) 1n  beeswax trloctanoln  mixture  Into  groups  of  27-35
rats produced  dose-related  squamous  cell  carcinomas  of  the  lung  after  life-
time observation (Deutsch-Henzel et al.,  1983).  Tumors were not  observed In
groups  of  35  vehicle  or  untreated controls,  and  Incidences  1n the  low-,
middle- and high-dose treated groups were  0/35,  3/31  and 12/27, respectively.
    The  cardnogenlclty  of  benzo[k]fluoranthene has  also been evaluated In
dermal studies with mice  Involving  2 or 3 times  weekly  applications  for life
or  13  months  (Wynder and Hoffman,  1959;  Habls  et al.,  1980),  In mouse-skin
Initiation-promotion  assays  using TPA as  a promoter (LaVole  et al.,  1982;
Am1n et al., 1985), and  1n  a subcutaneous Injection  study In which mice were
given  three   Injections   at  monthly  Intervals   (Lacassagne  et  al.,  1963).
Benzo[k]fluoranthene  was  active as  an Initiator In  the Initiation-promotion
assays  and produced  Injection  site  sarcomas   In  the subcutaneous  study.
Interpretation of  the  subcutaneous  Injection study Is  complicated,  however,
by  the  lack of vehicle  or untreated controls and by  an unspecified  observa-
tion period.
    Benzo[k]fluoranthene  Induced mutations  In  Salmonella  typhlmurlum strains
TA100  and  TA98 In the  presence of  exogenous  metabolic  activation  prepara-
tions {LaVole et al., 1980;  Hermann et al., 1980; Amln et al.,  1985).
    Information regarding chronic  or subchronlc toxic  effects,  teratogenlc-
1ty  or  other  reproductive  effects  of  benzo[k]fluoranthene   could  not  be
located 1n the available literature as cited 1n the Appendix.
0865p                               -24-                             08/11/87

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                             6.  AQUATIC TOXICITY
6.1.   ACUTE
    Pertinent  data  regarding the  acute  toxldty of  benzo[k]fluoranthene  to
aquatic organisms could  not  be located In the  available  literature as cited
1n the Appendix.
6.2.   CHRONIC
    Pertinent  data regarding  the  chronic  toxldty  of  benzo[k]fluoranthene  to
aquatic organisms could  not  be located In the  available  literature as dted
1n the Appendix.
6.3.   PLANTS
    Pertinent  data regarding the effects of  benzo[k]fluoranthene  on aquatic
plants  could  not be  located  1n  the  available literature as  dted  1n  the
Appendix.
6.4.   RESIDUES
    The  only   Information  about  benzo[k]fluoranthene  and aquatic  organisms
consisted  of   residue  monitoring  data for  various  species  and  locations.
Table 6-1  contains  data from  the study by Knutzen and Sortland  (1982),  who
examined marine  species  from polluted areas  In Norway;  the  highest concen-
trations were  reported  1n mussels,  HytHus  edulls  (6-69 ng/kg).   Tsujl  et
al.  (1985)  reported  that  clams  (unspecified species) collected  In Japanese
waters     contained      0.12-0.92    ng/g     (presumably    wet     weight)
benzo[k]fluoranthene.    Haccubbln  et  al.  (1985)   found   that  the  stomach
contents of  white  suckers,   Catostomus  commersonl.  from eastern  Lake  Erie
contained benzo[k]fluoranthene  at concentrations of  2-11  ng/g  (wet weight).
Dunn  and  Fee  (1979)   found   that lobsters,   Homarus   amerlcanus.   caught  In
eastern  Canada  had  an  average   concentration of  0.35  ng/g  wet  weight;
however,   after    Impoundment,    the    body    burden   was    169   ng/g.


0865p                               -25-                             08/11/87

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                                  TABLE 6-1
          Monitoring Data for  Benzo[k]fluoranthene  1n  Marine  Species
                            from Norwegian Waters*
              Species
                     Tissue  Concentration
                             dry  weight)
INVERTEBRATE
  Mussel, Mytllus edulls
  Periwinkle, LUtorlna llttorea
  Limpet, Patella vulgata
  Sponge, Hallchondrla panlcea

PLANTS
  Bladder wrack, Fucus veslculosus
  Knotted wrack, Ascophyllum nodosum
  Toothed wrack, Fucus serratus
    Lam1nar1a saccharlna
    Ceramlum rubrum
                           6-69
                           3-20
                           trace-39
                           40
                           trace-66
                           trace
                           4-15
                           4
                           6
*Source: Knutzen and Sortland,  1982
0865p
-26-
10/31/86

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It  1s  a  common  practice to store lobsters for  some  time  before  sending them
to  market,  and  frequently  the  enclosures  are  made wHh  creosote-treated
wood, a possible source of  benzo[k]fluoranthene and  other  PAH.   The 500-fold
difference  In   benzo[k]fluoranthene   levels  between  freshly   caught  and
Impounded lobsters  Indicate that the  Impoundment  procedure  may  result  1n  a
significant Increase In human exposure to benzo[k]fluoranthene.
6.5.   SUMMARY
    Data  concerning   the  toxlclty   of  benzo[k]fluoranthene   to   aquatic
organisms could  not  be located  1n  the available  literature as  cited  In the
Appendix.   The  only  Information consisted  of monitoring  data   for  various
species  and  locations.   Residues  In  species  that  are   commonly  eaten  by
humans were mussels In  Norway,  6-69 ng/g (Knutzen  and Sortland,  1982), clams
In  Japan,  0.12-0.92  ng/g  (Tsujl  et   a!.,  1985),  and  lobster   from  Eastern
Canada,  0.35  ng/g  before  Impoundment and 169  ng/g  after Impoundment  (Dunn
and Fee, 1979).
0865p                               -27-                             03/23/87

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                     7.   EXISTING GUIDELINES AND STANDARDS
7.1.   HUNAN
    Exposure criteria  and TLVs have  been developed for  PAH  as a class,  as
well as  for  several Individual PAH.   OSHA (1985) set an 8-hour TWA  concen-
tration  limit  of  0.2  mg/ma  for   the  benzene-soluble fraction  of coal  tar
pitch  volatlles  (anthracene,   benzo[a]pyrene,  phenanthrene,  acrldlne,  chry-
sene, pyrene).  NIOSH (1977) recommended  a concentration  limit  for coal  tar,
coal tar  pitch,  creosote  and  mixtures of these  substances  of 0.1 mg/ma  of
the cyclohexane-extractable fraction  of  the  sample, determined as  a  10-hour
TWA.  NIOSH  (1977)  concluded  that  these  specific coal tar products,  as  well
as  coke  oven emissions,  are carcinogenic  and  can Increase the risk  of  lung
and skin  cancer  1n workers.   NIOSH  (1977)  also  recommended a  celling limit
for exposure to asphalt fumes  of 5 mg airborne  part1culates/m3  of air.
    Ambient  water  quality  criteria, which  specify  concentration   limits
Intended to  protect  humans against adverse health effects, have  been recom-
mended  for  PAH.   U.S. EPA (1980a) recommended  a concentration limit of  28
ng/l for  the sum of all  carcinogenic PAH 1n  ambient  water.   This value  1s
based on a mathematical  extrapolation of the  results  from studies with  mice
treated orally with  benzo[a]pyrene and acknowledges  the  conservative  assump-
tion that  all  carcinogenic PAH are  equal 1n  potency  to  benzo[a]pyrene.   On
the basis of the animal  bloassay data, dally consumption  of  water containing
28  ng/l of  carglnogenlc  PAH  over an entire  lifetime  1s estimated  to  keep
the lifetime risk of cancer development <1/100,000 chances.
    The  EPA  has  not  recommended  an  ambient  water  quality  criterion  for
noncardnogenlc  PAH  as  a  class.   U.S.  EPA (1980a)  acknowledged that  data
suitable for  quantitative risk assessment of  noncardnogenlc  PAH  are essen-
tially nonexistent.


0865p                               -28-                              10/31/86

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7.2.   AQUATIC
    Guidelines  and  standards for  the protection  of  aquatic biota  from the
effects  of benzo[k]fluoranthene 1n  particular  could  not  be located  1n the
available  literature as  cited  1n  the Appendix.   U.S.  EPA (1980a) noted, how-
ever,  that acute toxldty to  saltwater  aquatic life  occurred  at  concentra-
tions  of  300  vg/l  PAH  1n  general  and would  occur at  lower  concentrations
In  species more  sensitive  than  those  tested.  U.S.  EPA  (1980a)  concluded
that  the  database  was  Inadequate   to  make   generalizations  or  recommend
criteria  regarding  chronic  toxldty or acute  toxldty to  freshwater  biota
of PAH.
0865p                               -29-                             10/31/86

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                              8.   RISK  ASSESSMENT
    Single  Intrapulmonary   Injections  of  0.16,  0.83  or  4.15  mg  benzo[k]-
fluoranthene  (99.5%  pure)   In  beeswa,x-tr1octano1n  mixture  Into  groups  of
27-35 rats  produced  dose-related  squamous  cell carcinomas  of the  lung after
lifetime  observation   (Deutsch-Wenzel   et   al.,   1983).    Tumors   were  not
observed  1n  groups of  35  vehicle or  untreated  controls,  and  Incidences  1n
the  low-,  middle- and high-dose  treated groups  were  0/35, 3/31  and  12/27,
respectively.  Incidences 1n  the  positive  control  were  4/35,  21/35 and 33/35
at 0.1, 0.3 and 1.0 mg of benzo(a)pyrene, respectively.
    The carclnogenlclty  of  benzo[k]fluoranthene was  also evaluated 1n dermal
studies with mice  Involving 2 or 3 times  weekly applications for  life or  13
months (Hynder and Hoffman,  1959; Habls  et al.,  1980);  1n mouse-skin Initia-
tion-promotion assays  using TPA  as  a  promoter (LaVole  et al.,  1982; Amln  et
al.,  1985)  and In  a  subcutaneous Injection  study In which mice  were given
three  Injections  at  monthly  Intervals  (Lacassagne  et  al.,  1963).   As
detailed  In  Table 5-1,  benzo[k]fluoranthene was  active  as an  Initiator  1n
the  Initiation-promotion assays  and  produced  Injection  site  sarcomas  1n the
subcutaneous study.   Interpretation  of  the subcutaneous  Injection  study  1s
complicated, however,  by the  lack of  vehicle or  untreated controls and by an
unspecified observation  period.
    Benzo[k]fluoranthene Induced  mutations  In Salmonella typhlmurlum strains
TA100  and  TA98 1n  the  presence  of  exogenous metabolic  activation prepara-
tions (LaVole et al.,  1980; Hermann et al., 1980;  Amln et al., 1985).
    The results of  the above studies  provide sufficient evidence to conclude
that  benzo[k]fluoranthene  1s  carcinogenic  to experimental animals.  Calcula-
tion  of  a  carcinogenic potency factor  (q,*)   specifically  for  benzofk]-
fluoranthene  Is  precluded,  however,  by  the lack  of  appropriate  oral  or
Inhalation studies.
0865p                               -30-                             08/07/87

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                           9.   REPORTABLE  QUANTITIES
9.1.   REPORTABLE QUANTITY (RQ) RANKING BASED ON CHRONIC TOXICITY
    Information  regarding  chronic  or  subchronlc toxic effects, teratogenclty
or  other  reproductive effects  of  benzo[k]fluoranthene could  not  be located
In  the available literature  as cited In  the  Appendix.   Calculation  of  an RQ
ranking  for  benzo[k]fluoranthene   based  on  chronic  toxldty 1s  therefore
precluded by the lack of appropriate data (Table 9-1).
9.2.   HEIGHT OF EVIDENCE AND POTENCY FACTOR (F=1/ED1Q} FOR CARCINOGENICITY
    Single  Intrapulmonary  Injections of 0.16,  0.83  or 4.15 mg benzo[k]fluor-
anthene  (99.5%  pure)  In  beeswax-trloctanoln  mixture  Into  groups  of  27-35
rats produced  dose-related squamous cell  carcinomas of the  lung  after  life-
time observation (Deutsch-Wenzel et al.,  1983).   Tumors  were not  observed 1n
groups  of   35  vehicle or  untreated controls,  and  Incidences  1n the  low-,
middle- and high-dose treated groups were 0/35, 3/31 and 12/27, respectively.
    The carclnogenlcHy  of benzo[k]fluoranthene  has  also been  evaluated In
dermal studies with mice Involving  2 or  3 times weekly applications  for life
or  13  months  (Wynder and  Hoffman,  1959;  Habls et  al.,  1980),  In mouse-skin
Initiation  promotion  assays  using  TPA  as a  promoter (LaVole et  al.,  1982;
Am1n et al.,  1985)  and 1n a subcutaneous  Injection study  1n which mice were
given  three  Injections  at  monthly  Intervals  (Lacassagne et al.,  1963).   As
detailed 1n  Table  5-1,  benzo[k]fluoranthene  was active  as  an  Initiator  In
the Initiation-promotion assays  and produced Injection site  sarcomas  In  the
subcutaneous study.   Interpretation of the  subcutaneous  Injection  study Is
complicated, however, by the lack of vehicle  or untreated  controls and  by an
unspecified observation period.
    Benzo[k]fluoranthene  Induced mutations  1n  Salmonella  typhlmuMum strains
TA100  and  TA98  1n  the  presence of  exogenous  metabolic activation  prepara-
tions  (LaVole et al.,  1980; Hermann et  al.,  1980; Am1n et al.,  1985).

0865p                               -31-                             08/06/87

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                                  TABLE 9-1
                             Benzo[k]fluoranthene
           Minimum  Effective  Dose  (MED) and Reportable Quantity  (RQ)

Route:
Dose:
Effect:
Reference:
RVd:
RVe:
Composite Score:
RQ:                     Data are not sufficient for deriving an RQ
0865p                               -32-                             08/06/87

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    The  results  of  the  above  studies  provided  sufficient  evidence  to
conclude that  benzo[k]fluoranthene  Is carcinogenic  to  experimental animals.
Calculation of  a  carcinogenic potency factor  (F)  specifically for benzo[k]-
fluoranthene  Is  precluded,  however,  by  the  lack  of  appropriate oral  or
Inhalation studies.
    IARC (1983) has  judged benzo[k]fluoranthene to  be  probably carcinogenic
to humans  (Group  26).  The corresponding  EPA classification  would be Group
B2 (U.S. EPA,  1986c).
0865p                               -33-                             08/07/87

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Cole, R.H.,  R.E.  Frederick,  R.P. Healy and  R.G.  Rolan.   1984.   Preliminary
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Maccubbln,  A.E.,  P.  Black, L. Trzeclak and  J.J.  Black.   1985.  Evidence for
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Environ.  Contam. Toxlcol.  34(6): 87*6-882.

Marty,  J.C.,  M.J. Ussier and  A.  Sallot.   1984.   Gaseous  and  partlculate
polycycllc  aromatic  hydrocarbons  (PAH)  from the marine  atmosphere.   Atmos.
Environ.  18:  2183-2190.

Matsumoto,  H.  and  T.  Kashlmoto.  1985.  Average dally  respiratory  Intake of
polycycllc  aromatic  hydrocarbons  1n ambient  air determined  by capillary gas
chromatography.  Bull. Environ.  Contam. Toxlcol.  34: 17-23.

McFall, J.A., S.R. Antolne and  I.E.  Deleon.   1985.   Base-neutral  extractable
organic pollutants  1n biota  and  sediments  from Lake  Pontchartraln.   Chemo-
sphere.  14: 1561-1569.


0865p                               -39-                             08/06/87

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Huel,  B.  and  S.  Saguem.   1985.   Determination  of  23  polycycllc  aromatic
hydrocarbons In atmospheric participate matter of the Paris  area  and photol-
ysis by sunlight.   Int.  J.  Environ.  Anal.  Chem.   19: 111-131.

NAS  (National  Academy of Sciences).   1972.  Biologic Effects  of  Atmospheric
Pollutants.  Partlculate Polycycllc  Organic  Matter.   NAS,  Washington,  DC.
p. 63-81.

NIOSH  (National  Institute  for  Occupational   Safety  and  Health).   1977.
Criteria  for  a Recommended  Standard...Occupational  Exposure to  Coal  Tar
Products. U.S.  DHEW, PHS, CDC, Rockvllle,  MO.   Publ. No.  78-107.

NRC  (National  Research   Council).   1983.   Polycycllc Aromatic  Hydrocarbons:
Evaluation of  Sources and  Effects.  NRC,  National Academy  Press,  Washington,
DC.

OSHA  (Occupational  Safety and  Health Administration).   1985.   OSHA  Safety
and Health Standards.  29 CFR 1910.1000.

Pearlman,  R.S.,  S.H. Yalkowskl and  S.  Banerjee.   1984.   Water  solubilities
of  polynuclear  aromatic and  heteroaromatlc  compounds.   J.  Chem.  Ref.  Data.
13: 555-562.

Prahl,  F.G.,  E.  Crecellus  and  R.  Carpenter.   1984.   Polycycllc  aromatic
hydrocarbons In Washington coastal  sediments:  An  evaluation  of  atmospheric
and Mverene roots of Introduction.   Environ. Sc1. Techno!.  18:  687-693.
0865p                               -40-                             08/07/87

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Readman,  J.W.,  R.F.C.  Mantoura,  M.M.  Rhead  and  L.  Brown.   1982.   Aquatic
distribution  and  heterotrophlc  degradation  of  polycycllc aromatic  hydro-
carbons  (PAH)  In  the  Tamar  Estuary.   Estuarlne,  Coastal. Shelf.  Sc1.   14:
369-389.

Rees,  E.G.,  P.  Mandelstam,  J.Q.  Lowry and H.  Llpscomb.    1971.  A  study of
the mechanism of  Intestinal  absorption of benzo[a]pyrene.   Blochem. Blophys.
Acta.  225: 96.

Rostad,  C.E., W.A. Perelara and M.F.  Hult.   1985.  Partitioning  studies of
coal-tar  constituents   In   a   two-phase   contaminated  groundwater  system.
Chemosphere.  14: 1023-1036.

Ruepert,  C.,  A.  Gr1nw1s  and  H.  Govers.   1985.   Prediction of  partition
coefficients  of  unsubstHuted  polycycllc  aromatic   hydrocarbons  from  C10
                                                                           10
chromatographlc  and structural  properties.  Chemosphere.  14:  279-291.

Santodonato,  J.,   P.   Howard  and  D.  Basu.    1981.    Health  and  Ecological
Assessment of Polynuclear  Aromatic  Hydrocarbons.   Pathotox Publishers,  Inc.,
Park Forest South, IL.

Saxena,  J.,  O.K.   Basu and  J.  Kozuchowskl.    1977.   Method development  and
monitoring  of  polynuclear  aromatic  hydrocarbons  In  selected U.S.  waters.
EPA 600-11-77-052.  U.S. EPA, Cincinnati,  OH.   p. 84.
0865p                               -41-                             08/07/87

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Schmoldt, A.,  0.  Jacob and G.  Grimmer.   1981.   Dose-dependent Induction  of
rat Hver mlcrosomal aryl  hydrocarbon monooxygenase  by  benzo[k]fluoranthene.
Cancer Lett.  13(3): 249-257.

Shackelford,  W.M.  and  L.H.  Keith.   1976.   Frequency  of  Organic  Compounds
Identified 1n Hater.  EPA 600/4-76-062.   p.  79.

Sims,  R.C. and H.R. Overcash.   1983.  Fate  of polynuclear  aromatic  compounds
(PNAS) In soil-plant systems.   Residue Rev.   88:  1-68.

Sorrel!, R.K., H.J. Brass and R. Reding.  1980.  A  review  of the  occurrences
and treatment  of  polynuclear  aromatic hydrocarbons   In water.   Environ.  Int.
4: 245-254.

Staples,  C.A.,  A.  Werner  and  T.  Hoogheem.  1985.   Assessment of  priority
pollutant  concentrations  In   the   United   States   using   STORET  database.
Environ. Toxlcol.  Chem.  4: 131-142.

Tan, Y.L. and M.  He1t.   1981.   B1ogen1c and ablogenlc  polynuclear  aromatic
hydrocarbons   In  sediments   from   two   remote   Adirondack  lakes.    Geochlm
Cosmochlm. Acta.  45:  2267-2279.

Tsujl,  I.,   K. Kolde,  H.  Morlyama, K.  Tanabe  and H.  Matsushita.   1985.
Detection  of  polynuclear  aromatic  hydrocarbons In shellfishes,  seabottom
sediments and  sea water  by  high performance liquid  chromatography.   Shokuhln
E1se1gaku Zasshl.   26(1): 50-55.
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U.S.  EPA.   1980a.  Ambient  Water  QualHy Criteria  Document  for Polynuclear
Aromatic  Hydrocarbons.   Prepared by  the  Office of  Health  and Environmental
Assessment, Environmental  Criteria  and  Assessment  Office,  Cincinnati, OH for
the   Office   of   Water   Regulations  and   Standards,  Washington,  DC.   EPA
440/5-80-069.  NTIS PB-81-117866.

U.S.  EPA.   1980b.   Guidelines  and  Methodology Used  1n  the  Preparation  of
Health  Effects  Assessment  Chapters  of  the  Consent  Decree  Water  Criteria
Documents.  Federal Register.  45(231): 49347-49357.

U.S.  EPA.   1982.   An  Exposure  and Risk  Assessment for  Benzo[a]pyrene and
Other  Polycycllc Aromatic  Hydrocarbons.   Prepared  by  the Office  of Water
Regulations and Standards, Washington, DC.  Final Draft Report.

U.S.  EPA.   1984.  Health  Effects  Assessment  for  Polycycllc  Aromatic Hydro-
carbons  (PAH).   Prepared by the Office  of Health and  Environmental Assess-
ment,  Environmental  Criteria and Assessment  Office, Cincinnati, OH for the
Office of Emergency and Remedial Response, Washington, DC.

U.S.  EPA.   1986a.  OHM-TADS  (011  and Hazardous Materials  Technical Assist-
ance Data System).  On-line: April  16, 1986.

U.S. EPA.  1986b.   Graphical  Exposure Modeling  System (GEMS).  Octanol-Water
Partition Coefficient  (CLOGP)  and  Fate of Atmospheric  Pollutants (FAP)  data
bases.  Computer Estimations, August 8, 1986.   U.S. EPA, Washington, DC.

U.S.  EPA.    1986c.   Guidelines  for  Carcinogen   Risk  Assessment.   Federal
Register.  51(185):  33992-34003.

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USITC  (U.S.  International Trade  Commission).   1984.   Imports  of  Benzenold
Chemicals and Products, 1983.   USITC Publ.  1548,  Washington,  DC.

Vaessen, H.A.H.G.,  P.L.  Schullter,  A.A.  Jekel  and  A.A.M.M. Wllbers.   1984.
Polycycllc aromatic hydrocarbons  1n  selected foods; analysis and  occurrence.
Toxlcol. Environ. Chem.  7:  297-324.

Valnlo,  H.,  P.  Vollla,  J.  Hartlola  and 0.  Pelkonen.   1976.   The fate  of
Intratracheally  Installed benzo[a]pyrene In the  Isolated  perfused rat  lung
of both  control  and 20-methylcholanthrene pretreated rats.   Res.  Comm.  Chem.
Pathol. Pharmacol.  13: 259-271.   (CHed  In  U.S.  EPA,  1980a)

Van  Noort,  P.C.M.  and  E. Wondergem.   1985.   Scavenging  of airborne  poly-
cycllc aromatic hydrocarbons  by rain.  Environ.  Sc1.  Techno!.   19: 1044-1048.

Weast,  R.C.,  Ed.   1980.   CRC Handbook  of  Chemistry and  Physics, 61st  ed.
CRC Press Inc., Boca Raton,  FL.  p.  155.

Wynder,  E.L.   and  0.   Hoffman.   1959.   The carclnogenldty  of  benzofluor-
anthenes.  Cancer.  12: 1194-1199.

Yamasakl, H.,  K. Kuwata  and  Y.  Kuge.   1985.   Effects  of  vapor  pressure of
polycycllc  aromatic  hydrocarbons  on  their  adsorption/description  between
vapor phase and  partlculate phase 1n ambient air.   Nippon  Kagaku Kalshl.   8:
1632-1624.

Zoeteman, B.C.J.,  E.   Degreef and  F.J.3.   Brlnkman.   1981.   Persistence  of
organic  contaminants  In  ground water,  lessons from  soil pollution Incidents
1n the Netherlands.  Scl. Total Environ.   21:  187-202.
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                                   APPENDIX

                              LITERATURE  SEARCHED



    This  profile  Is  based  on  data   Identified  by  computerized  literature

searches of the following:
         GLOBAL
         TSCATS
         CASR online (U.S. EPA Chemical Activities Status Report)
         CAS online STN International
         TOXLINE
         TOXBACK 76
         TOXBACK 65
         RTECS
         OHM TADS
         STORET
         SRC Environmental Fate Data Bases
         SANSS
         AQUIRE
         TSCAPP
         NTIS
         Federal Register
These  searches  were conducted  In  April,  1986.   In addition,  hand  searches

were  made  of   Chemical  Abstracts  (Collective  Indices  6  and  7),  and  the

following secondary sources were reviewed:


    ACGIH  (American  Conference of Governmental  Industrial  Hyg1en1sts).
    1986.   Documentation  of the Threshold Limit Values  and Biological
    Exposure Indices, 5th ed.  Cincinnati, OH.

    ACGIH  (American  Conference of Governmental  Industrial  Hyglenlsts).
    1985-1986.    TLVs:  Threshold  Limit  Values  for  Chemical  Substances
    and  Physical  Agents   In  the  Workroom   Environment  with  Intended
    Changes for 1985-1986.  Cincinnati, OH.  114 p.

    Clayton, G.D.   and  F.E.  Clayton,  Ed.   1981.   Patty's  Industrial
    Hygiene  and Toxicology,  3rd rev.  ed.,   Vol.  2A.   John Wiley  and
    Sons, NY.  2878 p.

    Clayton, G.D.   and  F.E.  Clayton,  Ed.   1981.   Patty's  Industrial
    Hygiene  and Toxicology,  3rd rev.  ed.,   Vol.  2B.   John WHey  and
    Sons, NY.  p. 2879-3816.
0865p
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Clayton,  6.D.   and  F.E.  Clayton,  Ed.    1982.   Patty's  Industrial
Hygiene  and  Toxicology,  3rd  rev.  ed..  Vol.  2C.   John  Wiley  and
Sons, NY.  p. 3817-5112.

Grayson, H.  and D. Eckroth,  Ed.   1978-1983.  K1rk-0thmer  Encyclo-
pedia of Chemical Technology, 3rd ed.   John  Wiley  and  Sons,  NY.   23
Volumes.

Hamilton, A. and H.L. Hardy.  1974.   Industrial  Toxicology,  3rd  ed.
Publishing Sciences Group, Inc., Littleton, MA.   575 p.

IARC  (International  Agency  for  Research on Cancer).  IARC  Mono-
graphs  on   the  Evaluation  of  Carcinogenic  Risk   of  Chemicals  to
Humans.  WHO, IARC, Lyons, France.

NTP  (National Toxicology  Program).   1986.   Toxicology Research  and
Testing  Program.   Chemicals   on  Standard  Protocol.   Management
Status.

Ouellette,   R.P. and  J.-A.  King.   1977.    Chemical  Week  Pesticide
Register.  McGraw-Hill  Book Co., NY.

Sax, N.I.  1979.   Dangerous Properties  of Industrial Materials,  5th
ed.  Van Nostrand Relnhold Co.,  NY.

SRI  (Stanford   Research  Institute).   1984.   Directory of  Chemical
Producers.   Menlo Park,  CA.

U.S. EPA.   1985.   Status  Report  on Rebuttable  Presumption  Against
Registration (RPAR) or  Special  Review  Process.   Registration Stan-
dards and the Data Call  In  Programs.   Office of  Pesticide Programs,
Washington,  DC.

U.S. EPA.  1985.   CSB Existing  Chemical Assessment Tracking System.
Name and  CAS Number Ordered  Indexes.   Office of  Toxic  Substances,
Washington,  DC.

USITC  (U.S.  International  Trade  Commission).    1983.   Synthetic
Organic  Chemicals.   U.S.  Production  and  Sales,  1982, USITC  Pub!.
1422, Washington, DC.

Verschueren, K.   1983.   Handbook of  Environmental  Data  on  Organic
Chemicals,  2nd ed.   Van Nostrand Relnhold Co., NY.

Wlndholz, M., Ed.  1983.  The Merck  Index,  10th  ed.  Merck and Co.,
Inc., Rahway, NJ.

Worthing, C.R.  and S.B.  Walker,  Ed.    1983.  The  Pesticide  Manual.
British Crop Protection Council.  695 p.
  U.S. Environmental Protection Agency
  Region V, Library
  230 South Dearborn Street

                 6°604
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     In  addition, approximately  30 compendia  of aquatic  toxlclty  data were

 reviewed,  Including  the  following:


     Battelle's  Columbus  Laboratories.    1971.   Water  Quality Criteria
     Data   Book.   Volume  3.   Effects  of  Chemicals   on   Aquatic  Life.
     Selected  Data from  the Literature  through  1968.   Prepared for the
     U.S. EPA  under Contract No. 68-01-0007.  Washington, DC.

     Johnson,  W.W. and  H.T.  Flnley.   1980.  Handbook  of  Acute Toxlclty
     of  Chemicals  to  F1sh  and  Aquatic   Invertebrates.    Summaries  of
     Toxlclty  Tests   Conducted  at  Columbia National  Fisheries Research
     Laboratory.   1965-1978.   U.S. Dept.  Interior,  F1sh  and Wildlife
     Serv".  Res. Publ. 137, Washington, DC.

     McKee,  J.E.  and  H.W. Wolf.  1963.  Water  Quality  Criteria, 2nd ed.
     Prepared  for  the   Resources  Agency  of  California,  State  Water
     Quality Control  Board.  Publ.  No. 3-A.

     Plmental, D.  1971.   Ecological  Effects of Pesticides on  Non-Target
     Species.  Prepared for  the U.S. EPA, Washington, DC.   PB-269605.

     Schneider, B.A.   1979.   Toxicology  Handbook.  Mammalian and Aquatic
     Data.   Book  1: Toxicology  Data.   Office of Pesticide  Programs, U.S.
     EPA, Washington, DC.  EPA 540/9-79-003.  NTIS PB 80-196876.
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