www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Podcast

Mountain air worse than city: study

(chinadaily.com.cn)
Updated: 2009-11-27 11:28

 

Get Flash Player

An American doctor says Beijing's air pollution is no worse on its clogged ring roads than along its tree-lined canals.

Dr Richard Saint-Cyr, a family physician for the International Medical Center in Beijing, conducted a personal study using a handheld air particle scanner and published the findings on his blog titled 'My Health Beijing' at www.myhealthbeijing.com.

He wrote that pollution levels on ring roads were not higher than on surrounding roads.

"Many believe that the areas surrounding heavily trafficked roads have much higher pollution levels, but my readings were exactly the same 100 m away and were even the same around roads surrounding canals," he told METRO.

He says that canals are often thought to have a cleansing effect on the air, and that he was disappointed to find this was not the case.

His measurements were taken with a particle scanner that uses a laser to measure the amount of fine dust particles in the air. It’s a method similar to that used by the World Health Organization to determine air quality.

He said his readings surrounding the ring roads may not be entirely accurate, because his device could not measure other pollution indicators such as carbon monoxide and nitrogen oxide, both of which can be harmful.

"Bottom line? I would still recommend your outdoor strolls along the tree-lined canals instead of ring roads, if only for aesthetics and sanity, but perhaps the pollution is the same," he wrote.

Over the course of a week, Saint-Cyr took more than 200 readings, measuring air particles throughout the capital. He traveled one hour and a half out of Beijing to take air quality readings in the mountains surrounding the city.

"We've always had the perception that mountain air is supposed to be fresh," he said, "but the readings I took from the mountains showed almost twice as much pollution than in the city."

He attributed the increase to people burning autumn leaves and using coal-fired heaters, and said that this may not be the case in the summer.

Saint-Cyr's work has been recognized by the Health On The Net Foundation, a UN supported NGO whose goal is to support accurate and effective health information on the Internet.

Mountain air worse than city: study

About the broadcaster:

Mountain air worse than city: study

Nancy Matos is a foreign expert at China Daily Website. Born and raised in Vancouver, Canada, Nancy is a graduate of the Broadcast Journalism and Media program at the British Columbia Institute of Technology. Her journalism career in broadcast and print has taken her around the world from New York to Portugal and now Beijing. Nancy is happy to make the move to China and join the China Daily team.

主站蜘蛛池模板: 免费视频18 | 一级做a爰片久久毛片人呢 一级做a爰片久久毛片唾 | 国产免费一区二区三区免费视频 | 国内自拍小视频 | 一区二区三区不卡在线观看 | 97香蕉久久夜色精品国产 | 九草网| 中文国产日韩欧美视频 | 亚洲视色 | 国产精品久久久久久久久久日本 | 亚洲免费久久 | 久久亚洲欧美成人精品 | 香港激情三级做爰小说 | 国产香蕉在线视频一级毛片 | 成年女人在线观看片免费视频 | 尤物蜜芽福利国产污在线观看 | 天天草综合 | 欧美成人免费观看国产 | 国产高清精品毛片基地 | 久久一本精品 | 成人区视频 | 久久久久久久综合 | 国产精品极品美女自在线看免费一区二区 | 国产老鸭窝毛片一区二区 | 久久er国产精品免费观看1 | 高清不卡日本v在线二区 | 国产成人亚洲精品老王 | 日本精高清区一 | 久久成人网18网站 | 久草视频免费在线观看 | 亚洲成年人在线观看 | a一级 | 欧美亚洲国产精品久久久 | 久久一本一区二区三区 | 最新亚洲精品 | 99国产精品视频久久久久 | 免费国产黄 | 亚洲国产精品自产拍在线播放 | 精品亚洲欧美高清不卡高清 | 日本高清色本在线www | 男女扒开双腿猛进入爽爽视频 |