Guardian: Last week, an eight-year-old girl from China's Jiangsu province was diagnosed with lung cancer, which was caused, according to doctors, by the tiny particle PM2.5 in air pollution that is most dangerous to health. This case highlighted the reality of exposure to high levels of pollution for vulnerable groups such as children.
Such headlines about the dangers of PM2.5 have become daily occurrences in China after pollution in cities such as Beijing reached unprecedented levels this year, prompting...