People walk on a frozen river amid thick smog in Shenyang in Liaoning province. Photo: Reuters

China could prevent 3 million deaths a year if air quality standards tightened, study suggests

Chinese researchers say enforcing World Health Organisation standards to reduce dangerous particles in smog would have huge impact on public health

Topic |   China pollution

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People walk on a frozen river amid thick smog in Shenyang in Liaoning province. Photo: Reuters
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