Too Much Manganese in Air May Lead to Lower IQ in Kids

A new study, published in the journal Neuro Toxicology, finds that children exposed to air manganese may have lower IQ scores.manganese

The study was led by Dr. Erin Haynes, an associate professor in the Department of Environmental Health at the University of Cincinnati College of Medicine in Ohio. A team of researchers analyzed blood and hair samples of 106 children in East Liverpool, Ohio, aged between 7 and 9 between March 2013 and June 2014.

The analysis has shown that hair manganese levels correlated negatively with full-scale IQ scores, as well as with processing speed and working memory.

Dr. Haynes says: “Children may be particularly susceptible to the neurotoxic effects of ambient [manganese] exposure, as their brains are undergoing a dynamic process of growth and development.”


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