Face masks are visible in many places outside in Beijing as smog reaches dangerous levels. Photo: EPA
Face masks are visible in many places outside in Beijing as smog reaches dangerous levels. Photo: EPA

China air pollution shortens lives by 5.5 years, study finds

Face masks are visible in many places outside in Beijing as smog reaches dangerous levels. Photo: EPA
Face masks are visible in many places outside in Beijing as smog reaches dangerous levels. Photo: EPA
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