Most hazardous metal pollutant of automobile | vedclass

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(D) Lead emitted from the vehicular exhausts is a harmful pollutant because it persists in the environment as dust for an indefinite time period.It is

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Lead

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(D) Lead emitted from the vehicular exhausts is a harmful pollutant because it persists in the environment as dust for an indefinite time period.It is a major air pollutant in urban areas.Anaemia,weakness,kidney failure,and neurological disorders are the symptoms of lead poisoning in humans.Children are more prone to lead poisoning than adults.Hence,the correct answer is $Lead$.

List-$I$	List-$II$
$A$. Sulphate $(> 500 \ ppm)$	$I$. Methemoglobinemia
$B$. Nitrate $(> 50 \ ppm)$	$II$. Brown mottling of teeth
$C$. Lead $(> 50 \ ppb)$	$III$. Laxative effect
$D$. Fluoride $(> 2 \ ppm)$	$IV$. Kidney damage

Most hazardous metal pollutant of automobile exhaust is

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