What is Beijing red alert?
Beijing authorities have declared a five-day pollution “red alert”, shutting schools, ordering thousands of vehicles off the roads and telling residents to stay indoors, after the Chinese capital was enveloped by a shroud of toxic smog that is expected to linger until Wednesday.
What is China red alert?
Five cities in the central Chinese province of Hubei have declared “red alerts” after torrential rain left 21 people dead and forced the evacuation of nearly 6,000 people, state media reported. Dozens of people died while trapped in flooded subway carriages, underground car parks, and tunnels.
What is red alert in pollution?
Red alerts are now issued when the AQI, a measure of pollutants in the air, is forecast to break 200 for more than four days in succession, surpass 300 for more than two days or overshoot 500 for at least 24 hours. Reporting by Christian Shepherd; Editing by Clarence Fernandez.
What is smog in China?
China smog: “The air is so polluted it’s darkened the sky” For the fourth day in a row, large sections of northeast China remain covered by a thick layer of smog considered hazardous to human health. Millions of people have been told to stay indoors, and most factories and schools have been shut.
Why was the air quality so bad in Beijing in December 2015?
Beijing’s air gets especially bad in the winter, when the burning of coal in northern China increases and weather patterns add to the smog. Beijing issued its first two red alerts in December under a four-tier warning system that has been in place for two years.
When did China’s air pollution start?
Establishment of a national air pollution monitoring system. Urban air pol- lution monitoring started as early as the mid-1970s in China.
Which city has issued a red alert for air pollution for the first time ever on December 2015?
Beijing
Schools in Beijing are closed and outdoor construction halted as the Chinese capital’s first ever pollution “red alert” came into effect.
Why is there smog in Beijing?
The causes of Beijing’s widespread air pollution can be attributed to a number of factors: an enormous economic boom, a surge in the number of motorized vehicles, population growth, output from manufacturing, and natural reasons which include the city’s surrounding topography and seasonal weather.
Is there smog in Beijing?
Beijingers are accustomed to heavy pollution, but Monday marked some of the worst conditions since a thick smog descended in 2012, dubbed the “airpocalypse”.
What is the air pollution in Beijing?
What is the current air quality in Beijing?
| Pollutants | Concentration |
|---|---|
| PM2.5 | 23 µg/m³ |
| PM10 | 56.5 µg/m³ |
| O3 | 46.5 µg/m³ |
| NO2 | 28 µg/m³ |