Why is unleaded petrol preferred over leaded petrol?
LEAD is a heavy metal that causes pollution and certainly harms the environment and human beings. Leaded petrol means petrol containing lead, which should be avoided as they get emitted in to the air and causes harmful effects on plants, humans and animals too. While unleaded petrol means petrol without lead, which is used now-a-days. lead is still a serious air pollutant especially to those living near to areas of dense traffic. Damage to the central nervous system, kidneys and brain can result from high concentrations in the blood. Children, however are affected to the toxic effects of lead at much lower concentrations than adults. It has been shown that there is a strong link between high lead exposures and impaired intelligence.