Red alert helps to reduce pollutants, say experts

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.