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have reported decreased fetal weight and birth defects at levels that are also toxic to maternal animals in the offspring of rats exposed to vinyl chloride through <br /> inhalation. <br /> STOT-single exposure <br /> The liquid may cause frostbite. The substance is irritating to the eyes. The substance may cause effects on the central nervous system. This may result in <br /> lowering of consciousness, convulsions and seizures. Medical observation is indicated. <br /> STOT-repeated exposure <br /> The substance may have effects on the liver, spleen, blood, peripheral blood vessels and tissue and bones of the fingers. Animal tests show that this substance <br /> possibly causes toxicity to human reproduction or development. This substance is carcinogenic to humans. <br /> Aspiration hazard <br /> A harmful concentration of this gas in the air will be reached very quickly on loss of containment. <br /> SECTION 12: Ecological information <br /> Toxicity <br /> • Toxicity to fish: no data available <br /> • Toxicity to daphnia and other aquatic invertebrates: no data available <br /> • Toxicity to algae: no data available <br /> • Toxicity to microorganisms: no data available <br /> Persistence and degradability <br /> AEROBIC: Limited existing data indicate that vinyl chloride is resistant to biodegradation in aerobic systems(1,2). Vinyl chloride, present at 2.04 and 10.2 mg/L, <br /> reached 16 and 3% of its theoretical BOD, respectively, in 28 days using an activated sludge inoculum at 1 drop/L in the Japanese MITI test(3). Aerobic <br /> biodegradation of vinyl chloride was measured in sediment at two sites in Denmark; >99% was removed in 204 and 274 days(4). The biodegradation half-life of <br /> vinyl chloride in aerobic waters was reported as 28 days(5). Vinyl chloride had a biodegradation rate of 1.456 ug/g soil/hr in soil from Skellingsted landfill in <br /> Holback, Denmark, incubated with methane(6). <br /> Bioaccumulative potential <br />