北京灰霾驗出大量毒素 (Large Amount of Toxins Found in Beijing Smog)
Sing Tao Daily, February 18, 2013
http://news.sina.com.hk/news/20130218/-9-2897684/1.html
Related:
Beijing Smog Contains Toxic Organic Compounds: Research
Global Times, February 17, 2013
http://www.globaltimes.cn/content/761942.shtml