Pedestrians cross a road on a smoggy day in Nanjing, Jiangsu province, China on January 30, 2018. Photo: Reuters

Smog levels rise 20pc in China’s Yangtze River Delta in January, raising fears polluters are moving south

Concentration of small, breathable particles known as PM2.5 more than seven times the WHO’s recommended level

Topic |   China pollution

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Pedestrians cross a road on a smoggy day in Nanjing, Jiangsu province, China on January 30, 2018. Photo: Reuters
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