Smog ‘red alert’ in effect in Beijing

A street vendor waits for customers at a smoggy Jingshan Park, 7 DecImage copyright

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A street vendor waits for customers at a smoggy Jingshan Park in Beijing

Schools in Beijing are closed and outdoor construction halted after the Chinese capital was issued with its first ever pollution “red alert”.

The red alert, the highest possible warning level, began on Tuesday morning and will last until midday on Thursday.

Limits have been placed on car use and some factories have been ordered to stop operations.

The alert comes as China, the world’s largest polluter, takes part in talks on carbon emissions in Paris.

At 07:00 local time on Tuesday (23:00 GMT on Monday) , the air pollution monitor operated by the US Embassy in Beijing reported that the intensity of the poisonous, tiny particles of PM 2.5 was at 291.

The World Health Organization considers 25 micrograms per cubic metre to be a safe level.

Coal-powered industries and heating systems, as well as vehicle emissions and dust from construction sites, all contribute to the smog which has been exacerbated by humidity and a lack of wind.

China’s CCTV news channel reported at the weekend that some parts of Beijing had visibility of only 200m (660 feet).

The order will last from 07:00 local time on Tuesday (23:00 GMT on Monday) until 12:00 on Thursday, when a cold front is expected to arrive and clear the smog.

As well as limits on construction and schools, cars with odd and even number plates will be banned from driving on alternate days.

In pictures: Smog’s effect on skyline

The smog film taking China by storm

‘Air dark from pollution’

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AFP/Getty Images

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The same building seen in Beijing on 3 December (above) and on 1 December (bottom)

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Near the East 4th Ring Road, facing west towards Beijing on 1 December…

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… and the same location a day later

Analysis: Matt McGrath, BBC environment correspondent, Paris

China’s air quality is a key factor in its push for a new global deal on climate change.

Its negotiators here point to their continued investment in renewable sources of energy, in an effort to cut down on coal consumption, particularly in urban areas. Around 58% of the increase in the country’s primary energy consumption in 2013-14 came from non-fossil fuel sources.

These efforts to go green may not be having an immediate effect on the air in Beijing but they have had an impact on global output of carbon dioxide. This year’s figures, just published, show carbon levels have stalled or declined slightly even while the world economy has expanded.

A strong agreement here in Paris won’t immediately solve China’s air woes, but if it ultimately pushes down the price of renewables even further, it could play a part in solving the issue long term.

What are PM 2.5 particles?

  • Particulate matter, or PM, 2.5 is a type of pollution involving fine particles less than 2.5 microns (0.0025mm) in diameter
  • A second type, PM 10, is of coarser particles with a diameter of up to 10 microns
  • Some occur naturally – eg from dust storms and forest fires, others from human industrial processes
  • They often consist of fragments that are small enough to reach the lungs or, in the smallest cases, to cross into the bloodstream as well

Activists said the level hit 1,400 micrograms per cubic metre in the north-east city of Shenyang last month, saying it was the worst seen in China.

In comparison, London’s PM 2.5 average on 6 December was 8 micrograms per cubic metre, the Environmental Research Group at King’s College said. It said more than 70 was reached during spring 2014 and 2015, and the highest was on bonfire night, 5 November 2006, at 112.

Last week, activists from Greenpeace had urged the Chinese government to declare a red alert. Another Chinese city, Nanjing, issued a red alert in December 2013.

Media captionArtist Kong Ning wants to highlight her concerns over pollution in China

On 30 November, Beijing issued an orange alert – the second-highest of the four-tier system adopted in 2013.

Correspondents say Chinese officials had been unwilling to commit to hard targets on reducing carbon emissions, but have now realised that the dependence on fossil fuels has to stop.

President Xi Jinping vowed to take action on the emissions at the current global climate change talks in Paris.

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