Demand for air monitors helps companies clean up
By Yu Wei in New York, Cecily Liu and Zhang Chunyan in London and Jiang Xueqing in Beijing | China Daily | Updated: 2013-01-31 07:23
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Inspectors from the environmental protection bureau in Ningbo, Zhejiang province check equipment that monitors air quality in the city. China's monitoring network is being expanded. Hu Xuejun / for China Daily |
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