Study in JAMA Pediatrics reveals widespread lead exposure through drinking water among Chicago's children under six, with disparities in exposure and testing rates highlighting the need for targeted public health interventions.
By Dr. Liji Thomas, MDMar 21 2024Reviewed by Benedette Cuffari, M.Sc. In a recent study published in JAMA Pediatrics, researchers assess the distribution and prevalence of lead exposure through drinking water for children below six years of age in Chicago, Illinois.
According to the United States Environmental Protection Agency , no level of lead in drinking water is considered safe for consumption. Chronic exposure to low levels of lead-contaminated water can increase blood lead levels , which increases the risk of various adverse health effects, particularly among children. These effects may include, but are not limited to, development deficits, cardiovascular complications, chronic kidney disease, and neurotoxicity.
Lead measurements, provided in parts per billion , were analyzed computationally to estimate childhood lead exposure at the city scale using machine learning algorithms and microsimulation studies. Risk-adjusted logistic regression analysis also determined racial disparities in lead exposure levels.
Related StoriesThe geographical location, population, and number of buildings for each block most accurately predicted the risk of lead exposure. The risk of exposure declined with the population; however, this risk rose with the number of buildings for each block. Blocks in Chicago's south and west neighborhoods had the highest contamination rates and lowest screening rates.
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