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One study found evidence for the presence of dozens of man-made chemicals previously undetected in humans in the blood of pregnant women and their newborns.
Researchers at the University of California at San Francisco (UCSF) collected blood from 30 pregnant women, along with samples from their umbilical cords, and analyzed them using high-resolution mass spectrometry (HRMS ) to identify chemicals of human origin in the blood.
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Scientists detected 109 chemicals during the study, 55 of which have never been reported in humans and 42 “mysterious chemicals” labeled with no known sources or uses. The researchers said the chemicals most likely came from consumer products or other industrial sources and the fact that they were found in both the blood of pregnant women and their children suggests they are traveling through. the mother’s placenta.
“These chemicals have probably been present in humans for some time, but our technology is now helping us identify more of them,” Tracey J. Woodruff, professor of obstetrics, gynecology and reproductive sciences at UCSF, mentionned.
People are exposed to human-made chemicals through eating and drinking foods that have come into contact with containers as well as through a range of other products. The chemicals found are used to make plastics more flexible, pharmaceuticals, consumer products, pesticides and flame retardants. They also include PFAS compounds, which have been used in various industries around the world and in the United States since the 1940s.
“It is alarming that we continue to see certain chemicals travel from pregnant women to their children, which means these chemicals can be with us for generations,” she said.
The study was published in Environmental science and technology.
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