Which is the Most Hazardous Metal Pollutant of Automobile Exhaust?

By BYJU'S Exam Prep

Updated on: September 25th, 2023

  1. Iron
  2. Cadmium
  3. Lead
  4. Mercury

The most hazardous metal pollutant of automobile exhaust is Lead. Due to its widespread use, the highly poisonous metal lead has significantly harmed human health and the environment. Because it can enter the food chain and result in heart disease, lead is dangerous.

Why Lead is the Most Hazardous Metal Pollutant of Automobile Exhaust

  • Over 6,000 years have passed since the first lead deposits were discovered, and the metal and its compounds have been utilized. Little lead nuggets were discovered in pre-Columbian Peru, Yucatan, and Guatemala.
  • From 650 onward, the Greeks engaged in extensive lead mining and were skilled at both obtaining the metal and turning it into white lead. This served as the foundation for paints for more than 2000 years, up to the middle of the 20th century, due to its exceptional covering power.
  • The Romans extensively used lead, mining it mostly in Spain and Britain. They also used it to debase their silver coins and for water pipes, coffins, and pewter tableware.
  • Pipes, storage batteries, weights, shot and ammo, fishing sinkers, cable coverings, and sheets that protect us from radiation all frequently contain lead and lead alloys. Lead is mostly used in storage batteries for automobiles and other vehicles.


Which is the most Hazardous Metal pollutant of Automobile Exhaust? 1. Iron 2. Cadmium 3. Lead 4. Mercury

Lead is the most hazardous metal pollutant discovered in vehicle exhaust. It is poisonous which harms the environment and human health.

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