Beijing: The city where you can't escape smog

Beijing: The city where you can't escape smog China's capital is notorious for its chronic pollution. Even indoors it's a struggle to find clean air. Over the past few weeks, a period of particularly acute and prolonged air pollution, the average air quality in Beijing has been well above 200 micrograms of PM2.5 particles per cubic metre - many times the maximum safe limit. Escape 逃离 Smog 雾霾 Capital 首都 Notorious 出名的，臭名昭著的 Chronic 慢性的 Pollution 污染 Indoors 室内的 Struggle to do sth. 挣扎做某事 Acute 急性的 Prolonged 延长的 Air quality 空气质量 Micrograms 一微克 Particles 颗粒 Cubic miter 立方米 Safe limit 安全限度