Pregnant women, beware: Scientists have found air pollution particles in the placenta
Pregnant women beware! Scientists have discovered air pollution particles in the placenta. Scientists have found air pollution particles on the fetal side of the placenta, indicating that the fetus may be directly exposed to black carbon from vehicle traffic and fuel combustion. This study, published in *Nature Communications*, is the first to confirm that air pollution particles inhaled by the mother can penetrate the placenta. The authors observed thousands of particles per cubic millimeter in the placenta of each study subject. The scientific community has already established a link between exposure to polluted air and increased miscarriage, premature birth, and low birth weight. The Guardian reports that the study further indicates that this is not only due to inflammatory responses following maternal exposure to pollution, but the air pollution particles themselves may also be a cause. The harm caused by air pollution to the fetus can have lifelong effects. Professor Tim Nawrot of the University of Hasselt in Belgium said, "This is the most vulnerable period of life. All organ systems are developing. To protect future generations, we must reduce exposure to air pollution." He stated that governments have a responsibility to reduce air pollution, but people should avoid busy roads as much as possible. A large-scale global literature review found that air pollution can damage almost every organ and cell in the human body; nanoparticles can cross the blood-brain barrier, and billions have even been found in the hearts of urban children. While air pollution is decreasing in some countries, evidence that even low levels of air pollution can cause harm is rapidly increasing; however, 90% of the world's population lives in areas with air pollution levels higher than those reported by the World Health Organization (WHO).