Vol. 1, Issue 6 (2012)

Author(s):
Debjit bhowmik, K. P. Sampath Kumar*, M. Umadevi

Abstract:
Lead is particularly dangerous because once it gets into a person's system, it is distributed throughout the body just like helpful minerals such as iron, calcium, and zinc. And lead can cause harm wherever it lands in the body. In the bloodstream, for example, it can damage red blood cells and limit their ability to carry oxygen to the organs and tissues that need it, thus causing anemia. Most lead ends up in the bone, where it causes even more problems. Lead can interfere with the production of blood cells and the absorption of calcium that bones need to grow healthy and strong. Calcium is essential for strong bones and teeth, muscle contraction, and nerve and blood vessel function. Although laws and bans in developed countries limit and control the use of lead in various household substances, Indian laws lag far behind in this respect. Lead is the most toxic of all environment pollutants, and many children living in metro cities in India are susceptible to lead poisoning. Increased levels of lead in the blood may lead to anemia, stomach aches, headaches, appetite loss, impaired hearing, lowered IQ levels, and, depending on the degree of lead poisoning, they may also lead to slow growth and a damaged nervous system.