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health and safety plan solid waste management unit assessment

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AUTOMOTIVE GASOLINE 65-32<br />

spontaneous motor activity <strong>and</strong> reduced performance coknected with<br />

disturbances of the motor coordination system; however the severity of<br />

these effects does not indicate serious toxic damage to the CNS. The<br />

study concluded that MTBE "does not even minimally increase the<br />

neurologic effects with respect to gasoline itself." The level of<br />

exposure or the species which were tested were not reported (2293).<br />

t-Butvl<br />

alcohol<br />

At high concentrations, t-butyl alcohol causes narcosis in animals<br />

<strong>and</strong> it is expected to. cause the same effect in humans. Other than<br />

slight skin irritation, no effects have been reported from industrial<br />

exposure. The oral LB,, in the rat is 3500 q/kg (46).<br />

Ethanol is irritating to the eyes <strong>and</strong> mucous membranes. It is<br />

also a CNS depressant. The acute toxicity of ethanol is low for both<br />

animals <strong>and</strong> man. Overexposure causes ataxia, incoordination <strong>and</strong><br />

drowsiness (2,46). An oral LD,, of 14 g/kg was reported for the rat<br />

(47).<br />

Methanol causes optic neuropathy <strong>and</strong> metabolic acidosis.<br />

Poisoning has occurred primarily from ingestion of adulterated<br />

alcoholic beverages. After ingestion there is a latency period of 18<br />

to 48 hours after which exposed individuals develop symptoms of nausea,<br />

abdominal pain, headache <strong>and</strong> shortness of breath. Visual symptoms<br />

range from blurred or double vision to changes in color perception,<br />

constricted visual fields <strong>and</strong> complete blindness. Other symptoms of<br />

intoxication include dizziness, behavioral disturbances, neuritis <strong>and</strong><br />

acidosis. The degree of acidosis has been found to parallel the<br />

severity of the poisoning. Evidence suggests that exposure to vapor<br />

Concentrations of 200-375 ppm causes recurrent headaches <strong>and</strong> visual<br />

disturbances are seen at vapor levels of 1200-8300 ppm (2,461. An oral<br />

%O of 13 g/kg was reported in the rat (47).<br />

TOCP affects the spinal cord <strong>and</strong> peripheral nervous system.<br />

Symptoms of acute exposure, including nausea, vomiting, diarrhea <strong>and</strong><br />

abdominal pain, are followed by a latent period of 3 to 30 days. At<br />

this time, there is muscle soreness, numbness of fingers,. calf muscles<br />

<strong>and</strong> toes which progresses to foot <strong>and</strong> wrist drop. These effects are<br />

manifested after ingestion, inhalation or dermal absorption (54). An<br />

oral LD,, of 1160 mg/lcg has been reported in the rat (47). More<br />

information on TOCP can be found in Chapter 49 of the Installation<br />

Restoration Program Toxicology Guide, Volume 2.<br />

6/87

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