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Air pollution exposure during pregnancy has long-term impact on children’s health, development

Particulate matter (PM) is a major component of air pollution that is increasingly associated with long-term consequences for the health and development of children. In a study recently published in Nature’s Environmental Health and Preventive Medicine, Natalie Johnson, Ph.D., associate professor at the Texas A&M University School of Public Health, and her co-authors synthesized the findings of previous studies, reviews and meta-analyses on the adverse health effects of the two smallest types of particulate matter (PM): Fine (particles with an aerodynamic diameter less than 2.5 μm) and ultrafine (particles with an aerodynamic diameter less than 1 μm). Both types of PM can be inhaled deep into the lung. Ultrafine particles have recently been shown to cross into circulation and even cross the placental barrier, directly reaching the developing fetus. Read More

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