*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : VV7330000
CHEMICAL NAME : Silica, crystalline - quartz
CAS REGISTRY NUMBER : 14808-60-7
OTHER CAS REGISTRY NOS. : 1317-79-9
LAST UPDATED : 199712
DATA ITEMS CITED : 70
MOLECULAR FORMULA : O2-Si
MOLECULAR WEIGHT : 60.09
WISWESSER LINE NOTATION : SI O2
COMPOUND DESCRIPTOR : Tumorigen
Mutagen
Human
SYNONYMS/TRADE NAMES :
* Agate
* Amethyst
* Chalcedony
* Cherts
* Crystallized silicon dioxide
* D & D
* DQ12
* Flint
* Flintshot
* Gold bond R
* Imsil
* Min-U-Sil
* Novaculite
* Onyx
* alpha-Quartz
* Quartz silica
* Quazo puro
* Rock crystal
* Rose quartz
* Sand
* SF 35
* Sicron F 300
* Siderite (SiO2)
* Sikron F 100
* Sil-Co-Sil
* Silica, crystalline quartz
* Silica dust
* Silica flour (powdered crystalline silica)
* Silicon oxide, di- (sand)
* Silver bond B
* Snowit
* TGL 16319
* Tiger-eye
* W 12
* W 12 (Filler)
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Human
DOSE/DURATION : 16 mppcf/8H/17.9Y-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis)
Lungs, Thorax, or Respiration - cough
Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: PB246-697
TYPE OF TEST : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Human
DOSE/DURATION : 300 ug/m3/10Y-I
TOXIC EFFECTS :
Liver - other changes
REFERENCE :
ANYAA9 Annals of the New York Academy of Sciences. (New York Academy of
Sciences, 2 E. 63rd St., New York, NY 10021) V.1- 1877-
Volume(issue)/page/year: 271,324,1976
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 90 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60,
1940-78. For publisher information, see JJIND8. Volume(issue)/page/year:
57,509,1976
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intratracheal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 200 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis)
REFERENCE :
BJIMAG British Journal of Industrial Medicine. (British Medical Journal,
Box 560B, Kennebunkport, ME 04046) V.1- 1944- Volume(issue)/page/year:
10,9,1953
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 40 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60,
1940-78. For publisher information, see JJIND8. Volume(issue)/page/year:
1,241,1940
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 20 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BIJOAK Biochemical Journal. (Biochemical Soc. Book Depot, POB 32, Commerce
Way, Colchester, Essex CO2 8HP, UK) V.1- 1906- Volume(issue)/page/year:
27,1007,1933
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 80 mg/m3/26W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis)
Blood - changes in spleen
Immunological Including Allergic - decrease in cellular immune response
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and
Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR)
V.1-36, 1957-1992. For publisher information, see MTPEEI
Volume(issue)/page/year: 31(1),24,1987
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 108 mg/m3/6H/3D-I
TOXIC EFFECTS :
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - phosphatases
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - other oxidoreductases
Biochemical - Metabolism (Intermediary) - other proteins
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
107,350,1991
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 58 mg/m3/13W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
Endocrine - changes in thymus weight
Blood - changes in leukocyte (WBC) count
REFERENCE :
FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House,
Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year:
29,341,1991
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 1475 ug/m3/8H/21W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
REFERENCE :
ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St.,
Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 39,331,1986
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 4932 ug/m3/24H/39W-C
TOXIC EFFECTS :
Endocrine - changes in spleen weight
Immunological Including Allergic - decrease in humoral immune response
REFERENCE :
ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St.,
Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 21,298,1980
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 28 mg/m3/3W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
Lungs, Thorax, or Respiration - changes in lung weight
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - other Enzymes
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E.
First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year:
68,152,1983
** TUMORIGENIC DATA **
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 50 mg/m3/6H/71W-I
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria
Liver - tumors
REFERENCE :
ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St.,
Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 40,499,1986
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 45 mg/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria
Tumorigenic - tumors at site of application
REFERENCE :
ZHPMAT Zentralblatt fuer Bakteriologie, Parasitenkunde,
Infektionskrankheiten und Hygiene, Abteilung 1: Originale, Reihe B: Hygiene,
Krankenhaushygiene, Betriebshygiene, Praeventive Medizin. (Stuttgart, Fed.
Rep. Ger.) V.155-169, 1971-1979. For publisher information, see ZAOMDC.
Volume(issue)/page/year: 162,467,1976
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 90 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Blood - lymphoma, including Hodgkin's disease
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60,
1940-78. For publisher information, see JJIND8. Volume(issue)/page/year:
57,509,1976
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intrapleural
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 90 mg/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria
Blood - lymphoma, including Hodgkin's disease
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60,
1940-78. For publisher information, see JJIND8. Volume(issue)/page/year:
57,509,1976
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intratracheal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 111 mg/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria
Lungs, Thorax, or Respiration - tumors
REFERENCE :
CREMEX Cancer Research Monographs. (Praeger Pub., 521 Fifth Ave., New York,
NY 10175) V.1- 1983- Volume(issue)/page/year: 2,243,1986
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intratracheal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 100 mg/kg/19W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Lungs, Thorax, or Respiration - tumors
REFERENCE :
EVHPAZ EHP, Environmental Health Perspectives. (U.S. Government Printing
Office, Supt of Documents, Washington, DC 20402) No.1- 1972-
Volume(issue)/page/year: 34,47,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Implant
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 900 mg/kg
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria
Gastrointestinal - tumors
Tumorigenic - tumors at site of application
REFERENCE :
AICCA6 Acta Unio Internationalis Contra Cancrum. (Louvain, Belgium) V.1-20,
1936-64. For publisher information, see IJCNAW. Volume(issue)/page/year:
10,119,1954
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Implant
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 4000 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Kidney, Ureter, Bladder - tumors
REFERENCE :
BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills,
Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year:
22,825,1968
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intrapleural
SPECIES OBSERVED : Rodent - hamster
DOSE/DURATION : 83 mg/kg
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria
Tumorigenic - tumors at site of application
REFERENCE :
31BYAP "Experimental Lung Cancer: Carcinogenesis and Bioassays,
International Symposium, 1974," Karbe, E., and J.F. Park, eds.,
Springer-Verlag New York, Inc., 1974 Volume(issue)/page/year: -,92,1974
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 90 mg/kg/4W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Blood - lymphoma, including Hodgkin's disease
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60,
1940-78. For publisher information, see JJIND8. Volume(issue)/page/year:
57,509,1976
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 450 mg/kg/4W-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria
Gastrointestinal - tumors
REFERENCE :
NATWAY Naturwissenschaften. (Springer-Verlag, Heidelberger Platz 3, D-1000
Berlin 33, Fed. Rep. Ger.) V.1- 1913- Volume(issue)/page/year:
59,318,1972
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Implant
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 4554 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Tumorigenic - tumors at site of application
REFERENCE :
CORTBR Clinical Orthopaedics and Related Research. (Lippincott/Harper,
Journal Fulfillment Dept., 2350 Virginia Ave., Hagerstown, MD 21740) No.26-
1963- Volume(issue)/page/year: 88,223,1972
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Intrapleural
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 200 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Lungs, Thorax, or Respiration - bronchiogenic carcinoma
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60,
1940-78. For publisher information, see JJIND8. Volume(issue)/page/year:
48,797,1972
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Intrapleural
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria
Blood - lymphoma, including Hodgkin's disease
Lungs, Thorax, or Respiration - tumors
REFERENCE :
BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills,
Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year:
41,908,1980
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Intrapleural
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis)
Lungs, Thorax, or Respiration - tumors
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf
Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year:
41,836,1980
TYPE OF TEST : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE : Intrapleural
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria
Lungs, Thorax, or Respiration - tumors
REFERENCE :
JJIND8 JNCI, Journal of the National Cancer Institute. (Washington, DC)
V.61-79, 1978-87. For publisher information, see JNCIEQ.
Volume(issue)/page/year: 79,797,1987
** MUTATION DATA **
TYPE OF TEST : Micronucleus test
TEST SYSTEM : Human Lung
DOSE/DURATION : 40 ug/cm2
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 335,27,1995
TYPE OF TEST : Micronucleus test
TEST SYSTEM : Rodent - hamster Lung
DOSE/DURATION : 160 ug/cm2
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 335,27,1995
*** REVIEWS ***
ACGIH TLV-TWA 0.1 mg/m3, respirable dust
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
IARC Cancer Review:Animal Sufficient Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 42,39,1987
IARC Cancer Revew:Animal Sufficient Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 68,41,1997
IARC Cancer Review:Human Limited Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 42,39,1987
IARC Cancer Revew:Human Sufficient Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 68,41,1997
IARC Cancer Revew:Group 1
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 68,41,1997
TOXICOLOGY REVIEW
31BYAP "Experimental Lung Cancer: Carcinogenesis and Bioassays,
International Symposium, 1974," Karbe, E., and J.F. Park, eds.,
Springer-Verlag New York, Inc., 1974 Volume(issue)/page/year: -,94,1974
*** U.S. STANDARDS AND REGULATIONS ***
MSHA STANDARD-respirable dust in air:TWA 10 mg/m3/% resp. SiO2+2
DTLWS* "Documentation of the Threshold Limit Values for Substances in
Workroom Air," Supplements. For publisher information, see 85INA8.
Volume(issue)/page/year: 3,33,1973
MSHA STANDARD-total dust in air:TWA 30 mg/m3/2(SiO2+3)
DTLWS* "Documentation of the Threshold Limit Values for Substances in
Workroom Air," Supplements. For publisher information, see 85INA8.
Volume(issue)/page/year: 3,33,1973
OSHA PEL (Gen Indu):8H TWA 10 mg/m3/(% resp SiO2+2)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1910.1000,1994
OSHA PEL (Construc):8H TWA 10 mg/m3/(% resp SiO2+2)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1926.55,1994
OSHA PEL (Construc):8H TWA 30 mg/m3/(%SiO2+2), total dust
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1926.55,1994
OSHA PEL (Shipyard):8H TWA 250 mppcf/(%SiO2+5)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1915.1000,1993
OSHA PEL (Fed Cont):8H TWA 250 mppcf/(%SiO2+5)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
41,50-204.50,1994
*** OCCUPATIONAL EXPOSURE LIMITS ***
OEL-BELGIUM:TWA 0.1 mg/m3 JAN 1993
OEL-DENMARK:TWA 0.1 mg/m3 JAN 1993
OEL-FINLAND:TWA 0.2 mg/m3 JAN 1993
OEL-GERMANY:TWA 0.15 mg/m3 JAN 1993
OEL-RUSSIA:STEL 14 mg/m3 JAN 1993
OEL-SWEDEN:TWA 0.1 mg/m3 JAN 1993
OEL-SWITZERLAND:TWA 0.15 mg/m3 JAN 1993
OEL-THAILAND:TWA 10 mg/m3 (resp. dust) JAN 1993
OEL-THAILAND:TWA 30 mg/m3 (total dust) JAN 1993
OEL-UNITED KINGDOM:TWA 0.1 mg/m3 (resp. dust) JAN 1993
OEL-UNITED KINGDOM:TWA 0.3 mg/m3 (total dust) JAN 1993
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
NIOSH REL TO SILICA, crystalline quartz-air:10H CA TWA 0.05 mg/m3
REFERENCE :
NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of
Health, Education, and Welfare, Reports and Memoranda.
Volume(issue)/page/year: DHHS #92-100,1992
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 66495
No. of Facilities: 4077 (estimated)
No. of Industries: 59
No. of Occupations: 82
No. of Employees: 81221 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - X6478
No. of Facilities: 135 (estimated)
No. of Industries: 2
No. of Occupations: 10
No. of Employees: 8927 (estimated)
No. of Female Employees: 741 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 66495
No. of Facilities: 53724 (estimated)
No. of Industries: 254
No. of Occupations: 173
No. of Employees: 944731 (estimated)
No. of Female Employees: 112888 (estimated)
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
NIOSH CURRENT INTELLIGENCE BULLETIN 36, 1981
NIOSH Analytical Method, 1994: Silica, crystalline in coal mine dust, by IR,
7603
NIOSH Analytical Method, 1994: Silica, crystalline, by XRD, 7500; by VIS,
7600; by IR, 7602
NTP 7th Annual Report on Carcinogens, 1992 : anticipated to be carcinogen
OSHA ANALYTICAL METHOD #ID-142
OSHA ANALYTICAL METHOD #ID-125G
*** END OF RECORD ***