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Red alert helps to reduce pollutants, say experts

By ZHENG JINRAN (China Daily)    08:17, December 10, 2015
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Red alert helps to reduce pollutants, say experts

Children receive aerosol therapy on Wednesday at Beijing Children's Hospital, which has seen an increase in respiratory system diseases among youngsters since smog hit the capital this week. FENG YONGBIN/CHINA DAILY

Beijing's first smog red alert has helped to prevent air pollution from worsening, environmental experts said on Wednesday.

The capital has been on red alert since Tuesday morning, and the warning is due to be lifted at noon on Thursday.

The alert helped to cut concentrations of PM2.5 by 10 percent on Tuesday, said Cheng Shuiyuan, head of the College of Environmental and Energy Engineering at Beijing University of Technology.

His team has been carrying out a simulation experiment to assess the effects of the emergency measures taken by the government in response to the red alert.

The China Research Academy of Environmental Sciences, under the Ministry of Environmental Protection, also conducted real-time analysis on sources of air pollutants for the first time.

Chai Fahe, deputy head of the academy, said the amount of nitrates-a main pollutant from vehicle exhaust-was halved on Tuesday thanks to the red alert.

He said this showed that restrictions on the number of vehicles allowed on the roads had worked, adding that other efforts such as reducing coal consumption have also helped to reduce emissions. Under the red alert, vehicles are allowed on the roads on alternate days based on odd and even license plate numbers.

Other measures taken include shutting down industrial operations and closing schools and kindergartens.


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(For the latest China news, Please follow People's Daily on Twitter and Facebook)(Editor:Liang Jun,Bianji)

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