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Dames & Moore, 1999 - USDA Forest Service

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Constituent<br />

Aluminum<br />

Arsenic<br />

Acute Toxicity Summary<br />

Soluble forms of aluminum are potentially toxic; the<br />

insoluble forms have no measurable acute response. Acute<br />

aluminum toxicity is unlikely. The vast majority of cases<br />

of aluminum toxicity in humans fall into one of two<br />

categories: I) patients with chronic renal failure; 2) people<br />

exposed to aluminum in the workplace. Aluminum dust<br />

may cause eye irritation.<br />

Acute oral exposure can cause muscular cramps, facial<br />

swelling, cardiovascular reactions, severe gastrointestinal<br />

damage, and vascular collapse leading to death. Sensory<br />

loss and hematopoietic symptoms delayed afler exposure<br />

to high concentrations are usually reversible. Inhalation<br />

exposure can cause severe irritation of nasal lining, larynx,<br />

and bronchi.<br />

TABLE 7.1-44<br />

TOXICITY PROFILES FOR INDICATOR HAZARDOUS SUBSTANCES<br />

Chronic Toxicity Summary<br />

Some aluminum workers are at risk for<br />

developing respiratory manifestations of<br />

aluminum toxicity, mainly asthma, chronic<br />

obstructive lung disease, and pulmonary<br />

fibrosis. Serum phosphorus was reduced and<br />

urinary phosphorus and calcium were<br />

increased with chronic exposure to aluminum<br />

aerosol. Delayed hypersensitivity,<br />

telangiectases, and granulomas may occur<br />

from chronic aluminum skin contact.<br />

Chronic oral or inhalation exposure can<br />

produce: changes in skin, including<br />

hyperpigmentation and hyperkeratosis;<br />

peripheral neuropathy; liver injury;<br />

cardiovascular disorders; peripheral vascular<br />

disease associated with oral exposures; and<br />

blackfoot disease. High doses of some<br />

inorganic arsenic compounds to pregnant<br />

laboratory animals produced malformations<br />

in offspring.<br />

.<br />

Cancer Potential<br />

Excess skin cancers have been<br />

observed in individuals drinking<br />

water with elevated levels of<br />

arsenic from natural sources.<br />

Excess lung cancers have been<br />

observed in workers exposed to<br />

elevated concentrations of arsenic<br />

in air.<br />

Other<br />

Aluminum compounds have been<br />

evaluated as non-mutagenic by most<br />

standard methods of mutagenic assays.<br />

Toxicity viies for different<br />

compounds; inorganic trivalent arsenic<br />

compounds are usually more toxic<br />

than pentavalent compounds.

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