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美国的研究人员近日报道,生活在空气污染严重地区的孕妇所生婴儿的出生体重较低。研究人员对2000年出生在加利福尼亚的18000多名足月婴儿进行了分析;新的研究发现暴露于微粒空气污染的母亲所生婴儿的体重较低;与正常婴儿相比,身高亦有较矮小的危险。被科学家们称作 PM2.5的微粒是由在显微镜下可见的精微物质(如酸、金属和有机化合物)构成的,且可见于雾状天气情况下;这些物质由汽车、发电厂和一些工业加工过程中的能源燃烧而散发出来。
Researchers in the United States recently reported that babies born to pregnant women living in areas with severe air pollution have a lower birth weight. Researchers analyzed more than 18,000 full-term infants born in California in 2000; the new study found that babies born to mothers exposed to particulate air pollution had lower body weights and were shorter than normal infants Danger. Particles, which scientists call PM2.5, are made of microscopic substances (such as acids, metals and organic compounds) that are visible under a microscope and are visible in foggy weather; these are used by cars, power plants, and some industries The energy in the process burns and emits.