Nick Fetty | May 4, 2016
Water contaminants found in some rural agricultural areas could be linked to birth defects in pregnant women, according to a recent study co-authored by a University of Iowa researcher.
Peter Weyer, associate director of the Center for Health Effects of Environmental Contamination at the UI, along with Jean Brender, professor emeritus at the Texas A&M School of Public Health, studied water sources for pregnant women in rural areas of Iowa and Texas. The researchers found the presence of atrazine, nitrate and arsenic in well water samples.
Nitrate, commonly used in fertilizer, has been linked to neural tube defects, oral clefts, and limb deficiencies while atrazine, also used in fertilizer, can cause abdominal defects and gastroschisis. Arsenic contamination was found to be more of an issue in Texas where it seeps into water sources through the bedrock and if consumed by pregnant women can cause developmental problems in fetuses. While each of these compounds individually have been tied to birth defects and other health complications, the effects are unclear when two or more of these compounds are found in a single water source.
This recent study builds on work published by Weyer and Brender in 2013. Their 2013 study looked specifically at nitrate pollution in water and its links to birth defects. The researchers studied water sources for pregnant women in Iowa and Texas and used data from the National Birth Defects Prevention Study.
In both studies, the researchers recommend that before becoming pregnant, women should have wells tested for contaminants. If contaminants are found in a well women should consider other sources such as bottled water.