The pollutant lead present in the atmosphere may cause

The pollutant lead present in the atmosphere may cause

Right Answer is:

Cardiovascular disease

SOLUTION

Heavy metals most commonly associated with harmful effects in humans include lead, mercury, arsenic, and cadmium.

Lead (Pb) is a heavy toxic metal, it may be found in hazardous concentrations in food, water, and air and it is one of the most common overexposures found in the industry. The organ systems most affected by lead include the nervous hematopoietic, reproductive, gastrointestinal, cardiovascular, and musculoskeletal systems as well as the kidneys. Exposure occurs through inhalation, ingestion, and uncommon skin contact.

Lead is taken in through direct contact with the mouth, nose, and eyes (i.e., mucous membranes); and through cuts in the skin.  Inorganic lead, found in the most common sources of paint, food, and consumer products, is only minimally absorbable through the skin.

The absorption of inorganic lead is primarily from ingestion and inhalation. Most of the absorbed lead (80% to 85%) is incorporated into bone and teeth where it competes with calcium; the half-life in bone is 20 to 30 years. Lead can move from bone to the bloodstream years after the initial exposure. Children store about 70% of absorbed lead in their bones and teeth; thus, other tissues in children are more greatly affected compared to adults. 

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