毒理学数据:
1.急性毒性 LC50:800000ppm(大鼠吸入,30min)
2.刺激性 暂无资料
3.亚急性与慢性毒性 大鼠及豚鼠,吸入浓度4000mg/m3,90d以上,15只动物死亡1~2只,出现肝脂肪变化,局灶性坏死,以及肺的非特异性变化。
4.其他 TCLo:200000ppm(人吸入,30min)
生态学数据:
1.生态毒性 暂无资料
2.生物降解性
好氧生物降解(h):672~4032
厌氧生物降解(h):2688~16128
3.非生物降解性
光解最大光吸收-高(nm):<200
空气中光氧化半衰期(h):2118~21180
4.其他有害作用 该物质对环境有危害,应特别注意大气的污染,其臭氧消耗潜能ODP为1,对大气臭氧层有极强破坏力。
CHEMICAL IDENTIFICATION
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RTECS NUMBER :
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PA8200000
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CHEMICAL NAME :
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Methane, dichlorodifluoro-
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CAS REGISTRY NUMBER :
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75-71-8
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LAST UPDATED :
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199712
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DATA ITEMS CITED :
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49
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MOLECULAR FORMULA :
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C-Cl2-F2
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MOLECULAR WEIGHT :
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120.91
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WISWESSER LINE NOTATION :
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GXGFF
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Human
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DOSE/DURATION :
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200000 ppm/30M
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TOXIC EFFECTS :
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Sense Organs and Special Senses (Eye) - conjunctive irritation Lungs, Thorax, or Respiration - fibrosing alveolitis Liver - other changes
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REFERENCE :
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EJTXAZ European Journal of Toxicology and Environmental Hygiene. (Paris, France) V.7-9, 1974-76. For publisher information, see TOERD9. Volume(issue)/page/year: 9,385,1976
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TYPE OF TEST :
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LD - Lethal dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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>5600 ug/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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REFERENCE :
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GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 52(3),73,1987
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TYPE OF TEST :
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LC - Lethal concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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>80 pph/4H
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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REFERENCE :
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NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0520424
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TYPE OF TEST :
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LC50 - Lethal concentration, 50 percent kill
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - mouse
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DOSE/DURATION :
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3348 gm/m3/3H
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TOXIC EFFECTS :
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Behavioral - sleep Behavioral - tremor Behavioral - excitement
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REFERENCE :
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GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 28(6),95,1963
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TYPE OF TEST :
-
LC50 - Lethal concentration, 50 percent kill
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ROUTE OF EXPOSURE :
-
Inhalation
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SPECIES OBSERVED :
-
Rodent - rabbit
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DOSE/DURATION :
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80 pph/30M
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TOXIC EFFECTS :
-
Details of toxic effects not reported other than lethal dose value
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REFERENCE :
-
EJTXAZ European Journal of Toxicology and Environmental Hygiene. (Paris, France) V.7-9, 1974-76. For publisher information, see TOERD9. Volume(issue)/page/year: 9,385,1976
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TYPE OF TEST :
-
LC50 - Lethal concentration, 50 percent kill
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ROUTE OF EXPOSURE :
-
Inhalation
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SPECIES OBSERVED :
-
Rodent - guinea pig
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DOSE/DURATION :
-
80 pph/30M
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TOXIC EFFECTS :
-
Details of toxic effects not reported other than lethal dose value
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REFERENCE :
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EJTXAZ European Journal of Toxicology and Environmental Hygiene. (Paris, France) V.7-9, 1974-76. For publisher information, see TOERD9. Volume(issue)/page/year: 9,385,1976 ** OTHER MULTIPLE DOSE TOXICITY DATA **
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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2548 mg/kg/26W-I
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TOXIC EFFECTS :
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Behavioral - alteration of classical conditioning Blood - changes in erythrocyte (RBC) count Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase
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REFERENCE :
-
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 52(3),73,1987
-
TYPE OF TEST :
-
TCLo - Lowest published toxic concentration
-
ROUTE OF EXPOSURE :
-
Inhalation
-
SPECIES OBSERVED :
-
Rodent - rat
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DOSE/DURATION :
-
4136 mg/m3/8H/6W-I
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TOXIC EFFECTS :
-
Lungs, Thorax, or Respiration - chronic pulmonary edema Related to Chronic Data - death
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REFERENCE :
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TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 10,270,1967
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TYPE OF TEST :
-
TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
-
Inhalation
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SPECIES OBSERVED :
-
Rodent - rat
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DOSE/DURATION :
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3997 mg/m3/90D-C
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TOXIC EFFECTS :
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Lungs, Thorax, or Respiration - chronic pulmonary edema Related to Chronic Data - death
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REFERENCE :
-
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 10,270,1967
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Primate - monkey
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DOSE/DURATION :
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3997 mg/m3/90D-C
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TOXIC EFFECTS :
-
Lungs, Thorax, or Respiration - chronic pulmonary edema
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REFERENCE :
-
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 10,270,1967
-
TYPE OF TEST :
-
TCLo - Lowest published toxic concentration
-
ROUTE OF EXPOSURE :
-
Inhalation
-
SPECIES OBSERVED :
-
Rodent - rabbit
-
DOSE/DURATION :
-
3997 mg/m3/90D-C
-
TOXIC EFFECTS :
-
Lungs, Thorax, or Respiration - chronic pulmonary edema
-
REFERENCE :
-
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 10,270,1967
-
TYPE OF TEST :
-
TCLo - Lowest published toxic concentration
-
ROUTE OF EXPOSURE :
-
Inhalation
-
SPECIES OBSERVED :
-
Rodent - guinea pig
-
DOSE/DURATION :
-
3997 mg/m3/90D-C
-
REFERENCE :
-
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 10,270,1967 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen 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 ACGIH TLV-TWA 4950 mg/m3 (1000 ppm) 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 TOXICOLOGY REVIEW FAZMAE Fortschritte der Arzneimittelforschung. Progress in Drug Research. (Birkhauser Boston, Inc., c/o Springer-Verlag New York, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1959- Volume(issue)/page/year: 18,365,1974 TOXICOLOGY REVIEW NYSJAM New York State Journal of Medicine. (Medical Soc. of the State of New York, POB 5405, Lake Success, NY 11042) V.1- 1901- Volume(issue)/page/year: 74,1939,1974 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 1000 ppm (4950 mg/m3) 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: 3,78,1971 OSHA PEL (Gen Indu):8H TWA 1000 ppm (4950 mg/m3) 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 1000 ppm (4950 mg/m3) 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 1000 ppm (4950 mg/m3) 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 1000 ppm (4950 mg/m3) 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-AUSTRALIA:TWA 1000 ppm (4950 mg/m3) JAN 1993 OEL-AUSTRIA:TWA 1000 ppm (5000 mg/m3) JAN 1993 OEL-BELGIUM:TWA 1000 ppm (4950 mg/m3) JAN 1993 OEL-DENMARK:TWA 1000 ppm (4950 mg/m3) JAN 1993 OEL-FINLAND:TWA 1000 ppm (4950 mg/m3);STEL 1250 ppm (6200 mg/m3) JAN 1993 OEL-FRANCE:TWA 1000 ppm (4950 mg/m3) JAN 1993 OEL-GERMANY:TWA 1000 ppm (5000 mg/m3) JAN 1993 OEL-HUNGARY:TWA 100 mg/m3;STEL 200 mg/m3 JAN 1993 OEL-JAPAN:TWA 500 ppm (2500 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 1000 ppm (4950 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 1000 ppm (4950 mg/m3) JAN 1993 OEL-POLAND:TWA 4000 mg/m3 JAN 1993 OEL-RUSSIA:TWA 500 ppm;STEL 3000 mg/m3 JAN 1993 OEL-SWEDEN:TWA 500 ppm (2500 mg/m3);STEL 750 ppm (4000 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 1000 ppm (5000 mg/m3) JAN 1993 OEL-TURKEY:TWA 1000 ppm (4950 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 1000 ppm (4950 mg/m3);STEL 1250 ppm 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 DICHLORODIFLUOROMETHANE-air:10H TWA 1000 ppm 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 - 24095 No. of Facilities: 139220 (estimated) No. of Industries: 403 No. of Occupations: 213 No. of Employees: 1892483 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 24095 No. of Facilities: 30739 (estimated) No. of Industries: 177 No. of Occupations: 140 No. of Employees: 510790 (estimated) No. of Female Employees: 143439 (estimated)
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