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Pull in to the local gas station and every pump has something in common. "Unleaded" is the new<br />

craze. For nearly six decades, gasoline companies ignored the known dangers associated with<br />

lead to get rich. Tetraethyl lead boosted the octane levels in auto fuel, but there was speculation<br />

surrounding the safety of that decision from Day One. In the Nov. 10, 1924, issue of TIME, a<br />

report showed that 35 men at the Standard Oil Company of New Jersey had come down with an<br />

"occupational disease." Symptoms ranged from insomnia to low blood pressure, all at the hands<br />

of lead poisoning. The EPA completed a full phaseout of lead gasoline in 1986, ending the quest to<br />

trade steady health for steady sales.<br />

Qualms about leaded gasoline began with the environmentalists and health professionals.<br />

Apparently, leaded gasoline was incompatible with catalytic converters installed in many onroad<br />

vehicles being driven. Catalytic converters are devices used to reduce the toxicity levels of<br />

automobile emissions. They are, however, ineffective in the presence of lead due to a chemical<br />

alteration that results from their interaction. The Environmental Protection Agency (EPA) stepped<br />

in quickly to regulate amounts of auto exhaust, leading to the general disapproval of leaded<br />

gasoline use.<br />

Moreover, health professionals determined that consumption of lead products, including leaded<br />

gasoline, correlated with the amount of lead found in the human bloodstream. This can cause lead<br />

poisoning, a condition that primarily causes neurological damage, gastrointestinal discomfort,<br />

and cognitive impairment in children.<br />

3. Lead Paint<br />

Lead paint or lead based paint (LBP) is paint containing lead, a heavy metal, that is used as<br />

pigment, with lead(II) chromate and lead(II) carbonate being the most common. Lead is also<br />

added to paint to speed drying, increase durability, retain a fresh appearance, and resist moisture<br />

that causes corrosion. In some countries lead continues to be added to paint intended for domestic<br />

use whereas in others regulation exists that prohibits this, though lead paint may still be found in<br />

older properties painted prior to the introduction of such regulation e.g. in the U.S. and the U.K.<br />

and Australia. Paint with significant lead content is still used in industry and by the military. For<br />

example, leaded paint is sometimes used to paint roadways and parking lot lines.<br />

Although lead improves paint performance, it is a dangerous substance. It is especially damaging<br />

to children under age six whose bodies are still developing. Lead causes nervous system damage,<br />

stunted growth, and delayed development. It can cause kidney damage and affects every organ<br />

system of the body. It also is dangerous to adults, and can cause reproductive problems for both<br />

men and women.<br />

One myth related to lead-based paint is that the most common cause of poisoning was eating<br />

leaded paint chips. In fact, the most common pathway of childhood lead exposure is through<br />

ingestion of lead dust through normal hand-to-mouth contact during which children swallow lead<br />

dust dislodged from deteriorated paint or leaded dust generated during remodeling or painting.<br />

Lead dust from remodeling or deteriorated paint lands on the floor near where children play and<br />

can be ingested.<br />

4. Asbestos<br />

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