Air Pollution

More Chinese cities issue red alerts for heavy smog


More Chinese cities are issuing their first red alerts for pollution in response to forecasts of heavy smog.

  1. Shandong province in eastern China issued alerts in 4 cities after warning that the density of particulate matter in the air would exceed high levels for more than 24 hours.
  2. China’s air pollution is notorious after 3 decades of breakneck economic growth.
  3. Beijing issued its first two red alerts in December under a 4-tier warning system that has been in place for two years.
  4. Environmental authorities said that their forecasting model must predict 3 or more days of smog at particular levels on the city’s air quality index.

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