毒理学数据:
1.急性毒性
LD50:214mg/kg(大鼠经口)
LC50:302ppm(大鼠吸入,8h);1540mg/m3(小鼠吸入,2h)
2.刺激性 暂无资料
3.亚急性与慢性毒性 吸入389mg/m3,98次,大鼠肺部从正常到严重肺炎,猴严重抽搐,豚鼠肺部无变化。
4.致突变性 微生物致突变:鼠伤寒沙门菌400ppm。姐妹染色单体交换:人淋巴细胞5mg/L。微核试验:大鼠吸入338ppm,每天6h,共14d。细胞遗传学分析:人淋巴细胞95mg/L。
5.致癌性 IARC致癌性评论:G3,对人及动物致癌性证据不足。
6.其他 TDLo:35000mg/m3(人经皮肤,40min);LCLo:60000ppm(人吸入,2h);TCLo:35ppm(人吸入)
生态学数据:
1.生态毒性 LC50:11~12mg/L(96h)(鱼类)
2.生物降解性
好氧生物降解(h):168~672
厌氧生物降解(h):672~2688
3.非生物降解性
空气中光氧化半衰期(h):1633~16327
一级水解半衰期(h):912
4.生物富集性BCF:270(理论)
5.其他有害作用 该物质对环境有危害,臭氧消耗物质,会对大气臭氧层造成破坏。
CHEMICAL IDENTIFICATION
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RTECS NUMBER :
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PA4900000
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CHEMICAL NAME :
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Methane, bromo-
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CAS REGISTRY NUMBER :
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74-83-9
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LAST UPDATED :
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199801
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DATA ITEMS CITED :
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78
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MOLECULAR FORMULA :
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C-H3-Br
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MOLECULAR WEIGHT :
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94.95
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WISWESSER LINE NOTATION :
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E1
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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LCLo - Lowest published lethal concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Human - man
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DOSE/DURATION :
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60000 ppm/2H
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TOXIC EFFECTS :
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Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - respiratory stimulation Gastrointestinal - nausea or vomiting
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TYPE OF TEST :
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LCLo - Lowest published lethal concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Human - child
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DOSE/DURATION :
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1 gm/m3/2H
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TOXIC EFFECTS :
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Blood - change in clotting factors
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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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35 ppm
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TOXIC EFFECTS :
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Behavioral - anorexia (human) Gastrointestinal - nausea or vomiting Skin and Appendages - corrosive (after topical exposure)
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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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Administration onto the skin
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SPECIES OBSERVED :
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Human
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DOSE/DURATION :
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35 gm/m3/40M-I
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TOXIC EFFECTS :
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Skin and Appendages - dermatitis, irritative (after systemic exposure)
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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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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214 mg/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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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 - rat
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DOSE/DURATION :
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302 ppm/8H
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TOXIC EFFECTS :
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Behavioral - changes in motor activity (specific assay) Nutritional and Gross Metabolic - weight loss or decreased weight gain Nutritional and Gross Metabolic - body temperature decrease
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Subcutaneous
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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135 mg/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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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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1540 mg/m3/2H
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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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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Mammal - dog
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DOSE/DURATION :
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500 mg/kg
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TOXIC EFFECTS :
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Cardiac - pulse rate increase, without fall in BP Gastrointestinal - nausea or vomiting Nutritional and Gross Metabolic - body temperature decrease
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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 - rabbit
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DOSE/DURATION :
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28900 mg/m3/30M
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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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TYPE OF TEST :
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LCLo - Lowest published 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 - guinea pig
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DOSE/DURATION :
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300 ppm/9H
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TOXIC EFFECTS :
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Behavioral - muscle weakness Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Skin and Appendages - hair
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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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21840 mg/kg/2Y-C
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TOXIC EFFECTS :
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Kidney, Ureter, Bladder - other changes in urine composition Skin and Appendages - hair Nutritional and Gross Metabolic - weight loss or decreased weight gain
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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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Rodent - rat
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DOSE/DURATION :
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120 ppm/6H/13W-I
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TOXIC EFFECTS :
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Blood - pigmented or nucleated red blood cells Blood - changes in erythrocyte (RBC) count Nutritional and Gross Metabolic - weight loss or decreased weight gain
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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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Rodent - rat
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DOSE/DURATION :
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150 ppm/6H/5D-I
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TOXIC EFFECTS :
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Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other transferases Biochemical - Metabolism (Intermediary) - amino acids (including renal excretion)
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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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Rodent - rat
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DOSE/DURATION :
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160 ppm/6H/6W-I
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TOXIC EFFECTS :
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Brain and Coverings - other degenerative changes Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Cardiac - other changes
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TYPE OF TEST :
-
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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Rodent - rat
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DOSE/DURATION :
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300 ppm/4H/3W-I
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TOXIC EFFECTS :
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Behavioral - somnolence (general depressed activity) Behavioral - ataxia Related to Chronic Data - death
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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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Rodent - mouse
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DOSE/DURATION :
-
200 ppm/6H/14D-I
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TOXIC EFFECTS :
-
Related to Chronic Data - death
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TYPE OF TEST :
-
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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Rodent - mouse
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DOSE/DURATION :
-
120 ppm/6H/13W-I
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TOXIC EFFECTS :
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Behavioral - muscle contraction or spasticity Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death
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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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Rodent - mouse
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DOSE/DURATION :
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160 ppm/6H/6W-I
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TOXIC EFFECTS :
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Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Endocrine - other changes Blood - changes in spleen
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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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250 mg/m3/8H/26W-I
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TOXIC EFFECTS :
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Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Behavioral - convulsions or effect on seizure threshold
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TYPE OF TEST :
-
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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Rodent - rabbit
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DOSE/DURATION :
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130 mg/m3/8H/26W-I
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TOXIC EFFECTS :
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Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Related to Chronic Data - death
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TYPE OF TEST :
-
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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Rodent - guinea pig
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DOSE/DURATION :
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850 mg/m3/8H/26W-I
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TOXIC EFFECTS :
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Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Lungs, Thorax, or Respiration - chronic pulmonary edema Lungs, Thorax, or Respiration - dyspnea
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TYPE OF TEST :
-
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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3250 mg/kg/13W-I
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TOXIC EFFECTS :
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Tumorigenic - Carcinogenic by RTECS criteria Gastrointestinal - peritonitis Gastrointestinal - tumors
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TYPE OF TEST :
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Specific locus test
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TYPE OF TEST :
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Sex chromosome loss and nondisjunction
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TYPE OF TEST :
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Micronucleus test
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TYPE OF TEST :
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Micronucleus test
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TYPE OF TEST :
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Sister chromatid exchange
MUTATION DATA
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TYPE OF TEST :
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Mutation in mammalian somatic cells
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TEST SYSTEM :
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Rodent - mouse Lymphocyte
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REFERENCE :
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MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 155,41,1985 *** 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 3.9 mg/m3 (1 ppm) (skin) 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 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: 41,187,1986 IARC Cancer Review:Human Inadequate 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: 41,187,1986 IARC Cancer Review:Group 3 IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,245,1987 *** 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 15 ppm (60 mg/m3) (skin) DTLWS* "Documentation of the Threshold Limit Values for Substances in Workroom Air," Supplements. For publisher information, see 85INA8. Volume(issue)/page/year: 3,23,1973 OSHA PEL (Gen Indu):CL 20 ppm (80 mg/m3) (skin) 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):CL 20 ppm (80 mg/m3) (skin) 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):CL 20 ppm (80 mg/m3) (skin) 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):CL 20 ppm (80 mg/m3) (skin) 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-ARAB Republic of Egypt:TWA 5 ppm (20 mg/m3);Skin JAN 1993 OEL-AUSTRALIA:TWA 5 ppm (20 mg/m3);Skin JAN 1993 OEL-AUSTRIA:TWA 5 ppm (20 mg/m3) JAN 1993 OEL-BELGIUM:TWA 5 ppm (19 mg/m3);Skin JAN 1993 OEL-DENMARK:TWA 5 ppm (20 mg/m3);Skin JAN 1993 OEL-FINLAND:TWA 15 ppm (60 mg/m3);STEL 25 ppm (97 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 5 ppm (20 mg/m3) JAN 1993 OEL-GERMANY:TWA 5 ppm (20 mg/m3);Skin;Carcinogen JAN 1993 OEL-HUNGARY:TWA 10 mg/m3;STEL 20 mg/m3;Skin JAN 1993 OEL-THE NETHERLANDS:TWA 5 ppm (20 mg/m3);Skin JAN 1993 OEL-THE PHILIPPINES:TWA 20 ppm (80 mg/m3);Skin JAN 1993 OEL-POLAND:TWA 5 mg/m3 JAN 1993 OEL-RUSSIA:STEL 1 mg/m3 JAN 1993 OEL-SWEDEN:TWA 15 ppm (60 mg/m3);STEL 20 ppm (80 mg/m3);Skin JAN 1993 OEL-SWITZERLAND:TWA 5 ppm (20 mg/m3);STEL 10 ppm (40 mg/m3);Skin JAN 1993 OEL-THAILAND:TWA 20 ppm (80 mg/m3) JAN 1993 OEL-TURKEY:TWA 20 ppm (80 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 5 ppm (20 mg/m3);STEL 15 ppm;Skin 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 METHYL BROMIDE-air:CA lowest feasible concentration 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 - M0420 No. of Facilities: 597 (estimated) No. of Industries: 10 No. of Occupations: 14 No. of Employees: 15899 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M0420 No. of Facilities: 513 (estimated) No. of Industries: 4 No. of Occupations: 5 No. of Employees: 5603 (estimated) No. of Female Employees: 975 (estimated)
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