北京空气质量倒数第二 每天110人患癌肺癌最多 (Reports: Beijing air quality ranks 2nd last, lung cancer is largest share of 110 new cancer cases in city daily) Radio Free Asia, June 27, 2014 http://www.rfa.org/mandarin/yataibaodao/huanjing/yf2-06272014095952.html