Pollutants in Mumbai air doubled in a year, BMC smog guns won't help: Experts

Scientists Link Air Pollution Exposure , to Early-Onset Puberty in Girls. Scientists Link Air Pollution Exposure , to Early-Onset Puberty in Girls. According to WHO estimates, exposure to fine particulate matter causes 7 million deaths worldwide every year. . According to WHO estimates, exposure to fine particulate matter causes 7 million deaths worldwide every year. . The American Lung Society reports that one in three people in the U.S. lives in counties with unhealthy air pollution levels. Particulate matter contains microscopic solid and liquid droplets that are so small that they can be inhaled into the deepest part of the lungs, enter the bloodstream and reach many downstream target organs, including the ovaries and other reproductive organs, Robert Hood, postdoctoral trainee fellow at Emory University's Rollins School of Public Health, via 'Newsweek'. Particulate matter contains microscopic solid and liquid droplets that are so small that they can be inhaled into the deepest part of the lungs, enter the bloodstream and reach many downstream target organs, including the ovaries and other reproductive organs, Robert Hood, postdoctoral trainee fellow at Emory University's Rollins School of Public Health, via 'Newsweek'. According to a study published in the journal 'Environmental Health Perspectives,' exposure to air pollution may impact the age at which girls enter puberty. We think that particulate matter may primarily affect puberty onset by disrupting the endocrine system, or more specifically the hypothalamic-pituitary-ovarian axis which is the key regulator of hormones and reproductive development, Robert Hood, postdoctoral trainee fellow at Emory University's Rollins School of Public Health, via 'Newsweek'. Another related pathway is through increasing the risk for childhood obesity, which is one of the best-characterized risk factors for earlier puberty onset in girls, Robert Hood, postdoctoral trainee fellow at Emory University's Rollins School of Public Health, via 'Newsweek'. Experts warn that early-onset puberty has been linked with hormone-related cancers, cardiovascular disease, hypertension and metabolic syndrome, 'Newsweek' reports. Experts warn that early-onset puberty has been linked with hormone-related cancers, cardiovascular disease, hypertension and metabolic syndrome, 'Newsweek' reports. Early-onset puberty has also been associated with wide-ranging impacts on the reproductive system, including earlier menopause