研究称北京雾霾含千种微生物会引发过敏和肺病
凤凰城棒棒牛-118 02/03 11078
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美国《大众科学》月刊称，一组中国研究人员检测了2013年1月北京空气样本DNA片段发现，其中含有约1300种微生物。
大多数微生物无害，但有些会引发过敏和肺病。该研究小组发现，雾霾较重时危险微生物浓度更高。
至于北京空气中的微生物真能让人生病还有待研究。
2014年2月1日，发表在Scientific American 上题为“At Least Twice as Much DNA of Pathogens and Allergens in Air on Beijing's Smoggiest Days” 的面向大众的报道：
2014年1月23日，正式发表在"Environmental Science and Technology"的科技原文：
http://pubs.acs.org/doi/abs/10.1021/es4048472
标题: Inhalable Microorganisms in Beijing’s PM2.5 and PM10 Pollutants during a Severe Smog Event
作者: Chen Cao, Wenjun Jiang, Buying Wang, Jianhuo Fang, Jidong Lang, Geng Tian, Jingkun Jiang, and Ting F. Zhu
Summary: Our results suggested that the majority of the inhalable microorganisms were soil-associated and nonpathogenic to human. Nevertheless, the sequences of several respiratory microbial allergens and pathogens were identified and their relative abundance appeared to have increased with increased concentrations of PM pollution. Our findings may serve as an important reference for environmental scientists, health workers, and city planners.
A scanning electron micrograph of the fungus Aspergillus fumigatus, one of the potentially harmful species that Chinese researchers have identified in Beijing smog samples.
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