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Toxic Lead Found in Raw Food Items in Kolkata

by Bidita Debnath on October 23, 2017 at 11:13 PM
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Toxic Lead Found in Raw Food Items in Kolkata

The presence of a high concentration of lead has been detected in raw food items such as polished rice and fish, sold in city markets, says a team of Indian scientists.

A study — released by the Geological Survey of India — highlights the life-threatening conditions people in Kolkata face from lead concentration in food, far higher than permitted limits.


The scientists have highlighted the linkages of the presence of the toxic substance with diesel combustion. The observations are based on recent studies carried out by a group of scientists lead by Avijit Das, Chemist of Geological Survey of India (GSI).

Raw food items sold on the streets contain a mean lead concentration between 3.78 and 43.35 mg/kg (average 23.56 mg/kg), way higher than the threshold value of 2.5mg/kg specified by Food Safety & Standards Regulation (2011), India, the report says. About 75% of this lead contamination is contributed by atmospheric lead produced by incomplete diesel combustion, it adds.

Prolonged exposure of lead, which is a highly toxic element, to humans can cause permanent damage to the kidneys, liver and hematologic systems.

Children are more at risk because lead exposure can reverse their brain growth and cause irreversible damage to their overall well being.

The study also found that about 75 percent of the Lead contamination in the food items sold in Kolkata markets, were contributed by atmospheric Lead, mainly produced by the combustion of diesel.

Source: Eurekalert

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