Pregnant lady exposed to excessive ranges of air pollution had children with lower IQs, researchers discovered.
The research led by the University of Washington and University of California, San Francisco accessed the IQs of slightly over 1,000 pregnant ladies’s offspring between the ages of four and six. There was a 2.5 level IQ difference between kids whose moms lived in the top 10% of probably the most polluted areas in comparison with those in the bottom 10%.
Exposure to PM10 – pollutant particles produced by sources similar to power plants, vehicles, air traffic, and railways – was related to lower IQs.
Researchers additionally discovered that folate, naturally present in leafy vegetables, beans, and citrus fruit – and beneficial for pregnant ladies – might offset some results of air pollution.
PM10 exposure had no effect on IQ if folate intake ranges have been higher, in line with the research.
But, an excessive amount of folate may have damaging results.
“Though supplementation has been proven to be protecting against neural-tube defects, that are devastating congenital disabilities of the central nervous system, latest analysis suggests that an excessive amount of prenatal folic acid could impair healthy fetal neurodevelopment,” mentioned Christine Loftus in a news release. “The dose of folic acid is one thing that pregnant ladies ought to talk about with their doctors.”
Researchers say that it’s possible that higher folate ranges add to stress associated with PM10 exposure.