Heavy yellow dust hits S. Korea, warnings issued

The heaviest yellow dust in five years hit South Korea on Monday, driving the country's meteorological authorities to issue yellow dust warnings and advisories.

As of 10 a.m. local time, yellow dust warnings were in place in capital Seoul, Incheon, Gyeonggi Province and part of Gangwon Province, according to the Korea Meteorological Administration. Dust advisories were issued for most other parts of the country.

The yellow dust warnings are issued when a per-hour fine dust concentration of more than 800 micrograms per cubic meter is expected to last for more than two hours. More than 400 micrograms per cubic meter leads to dust advisories in place.

The concentration of atmospheric "particulate matter (PM)-10," which measures fine dust concentration, in Seoul surged to 1,044 micrograms per cubic meter as of 4 a.m., the highest since Dec. 25, 2009 when it recorded 963 micrograms per cubic meter. PM-10 refers to airborne particles less than 10 micrometers in diameter.

As of 1 p.m., the Seoul metropolitan government revised down the dust warning to dust advisory, but the sandy wind is expected to stay until Tuesday.

People are advised to stay indoors and to wear protective spectacles and masks when going outside.
  Source: Xinhua - globaltimes.cn
23/2/15

Air pollution champion: China burns more coal than rest of world combined

China burns almost as much coal as the rest of the world combined, the US Energy Information Administration (EIA) has reported. China’s coal use is poised to continue rising, despite the country's rapidly deteriorating environment, experts predicted.
­The latest EIA report revealed that China's coal consumption grew more than 9 percent in 2011, continuing its upward trend for a 12th consecutive year. Since 2000, the country has accounted for more than 80 percent of the global increase in coal use, the EIA reported. China currently accounts for 47 percent of global coal consumption, nearly totaling the rest of the world combined.

Image from eia.gov

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Coal remains the most widely used energy source in China due to its low cost – the country is the largest user of coal electricity in the world. Along with its own vast coal resources – about 114 billion tons produced as of 2011 according to the World Coal Association – China also imports large quantities of coal, since the country's coal-mining regions are often far from the areas where it is in demand. "The Asian market is the fastest-growing coal market in the world," Brookings Institution energy analyst Charles Ebinger told Mother Jones magazine. 
China's heavy use of coal is believed to be one of the reasons the capital Beijing recently witnessed its worst air pollution in years. For two weeks, Beijing's air was labeled worse than “very unhealthy” and “hazardous.” Authorities have closed 103 factories and taken 30 percent of government vehicles off the roads, but with little effect.
Air pollution in China hit a record high earlier this month: 30 to 45 times above recommended safety levels. Beijing itself became blanketed in a thick, toxic cloud that grounded flights and forced people indoors.

Vehicles drive through the Guomao Bridge on a heavy haze day in Beijing's central business district January 29, 2013.(Reuters / Jason Lee)

The report is the highest-level acknowledgment to date of the hazardous air quality levels across much of China.
"We should take effective measures to speed up the enhancement of our industrial structure, push for energy conservation and build an ecological civilization," Chinese premier Wen Jiabao announced on state television.
However, the measures undertaken by the Chinese government do not include replacing coal production and consumption with more environmentally friendly sources of energy. Rather, the IEA predicted the opposite: Coal consumption will grow not only in China, but also in India and other developing economies, and this trend will prevail until clean energy prices can compete with coal.
Notably, wind power recently surpassed nuclear power production in China, and is now the country’s third-biggest source of electricity, second to hydropower, according to a recent report by the China Wind Energy Association.

.rt.com
30/01/13
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Related:

• Heavy smog shrouds Beijing for 3rd day

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Buildings and cars are pictured on a heavy hazy day during winter in Beijing's central business district, January 30, 2013.(Reuters / Jason Lee)

Visitors take pictures on Tiananmen Square during a foggy day in central Beijing, January 29, 2013.(Reuters / China Daily)

A combination photograph shows people wearing masks on a heavy haze day during winter in Beijing January 29, 2013.(Reuters / Jason Lee)

Heavy smog shrouds Beijing for 3rd day

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Air pollution in Beijing has reached dangerous levels for a third day. On Sunday, the municipal government issued a warning on its website for PM 2.5 readings. 

Real-time monitoring data shows the air quality index was as high as 500 in most parts of the city, with some above 900. An AQI reading below 50 indicates excellent air quality; above 100 is light pollution.


 The smog is expected to last another three days, as weather conditions are preventing the pollutants from dispersing. The public are advised to stay indoors and to avoid strenuous exercise.
 .cntv.cn
13/1/13
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Related post:

• Air pollution in Beijing reaches 'health hazard' levels (VIDEO, PHOTOS RT)

Air pollution in Beijing reaches 'health hazard' levels (VIDEO, PHOTOS RT)

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Air pollution in the Chinese capital has hit dangerous marks, reaching beyond the permissible level of pollution on the local environmental center’s scale. Beijing residents are recommended to stay indoors by local authorities.
The Beijing Municipal Environmental Monitoring Center has reported the rising of air-quality indices since Friday in many parts of the city.

A warning scrolled across the monitoring center's website says that the density of PM 2.5 had reached 700 micrograms per cubic meter in many parts of Beijing and that the polluted air was expected to linger for the next three days.
The index indicates the level of airborne PM 2.5 particulates, at which particle matters are considered the most harmful to health. Air is considered good when the index is at 50 or below, but hazardous with a reading between 301 and 500, when people are warned to avoid outdoor physical activities.
The city’s authorities have blamed a lack of wind and foggy conditions for the high concentration of air pollutants.
“It is expected that air pollution in Beijing will remain heavy during the daytime today… people are advised to stay indoors as much as possible,” China’s state TV quoted Beijing’s environmental protection center as saying on Friday.
According to rules issued by the city’s government in December, all outdoor sports activities are to stop and factories have to reduce production if Beijing's official air-quality reading goes over 500.
Meanwhile, according to a Twitter account run by the US embassy in Beijing,air quality ratings for the city have ranged between “very unhealthy” and “hazardous” since Thursday, and reached the “beyond index” mark during Saturday afternoon. Monitors there recorded off-the-chart air-quality readings as high as 845 at 8pm on Saturday.
Readings are often different in different parts of Beijing. Chinese authorities and the United States also have different ways to calculate the air quality index, although their indices are "highly similar" at the two ends of the spectrum, according to the founder of the nongovernmental Institute of Public and Environmental Affairs in Beijing, Ma Jun.
For comparison, on Friday the 9pm readings for PM2.5 and ozone in Hong Kong’s Central and Western districts, among the most polluted on the island, were around 60 and 20 respectively, according to the website of Hong Kong’s Environmental Protection Department.
Air pollution is believed to be one of the major problems in China with its fast pace of industrialization, reliance on coal power and quick growth in car ownership. Due to polluted air Beijing is often covered with dense smog, while its many residents suffer from respiratory problems.
Several other cities, including Tianjin on the coast east of Beijing and southern China's Wuhan city also reported severe pollution over the last several days.
.rt.com
12/1/13

A man walks along trees on a heavy haze winter day in central Beijing, January 12, 2013 (Reuters / Jason Lee)

A woman wearing a mask walks on a street during severe pollution in Beijing on January 12, 2013 (AFP Photo / Ed Jones)

A woman wearing a mask crosses a street during severe pollution in Beijing on January 12, 2013 (AFP Photo / Ed Jones)

Severe pollution clouds the Beijing skyline on January 12, 2013 (AFP Photo / Ed Jones)

An infant wearing a mask (C) is carried along a street in severe pollution in Beijing on January 12, 2013 (AFP Photo / Ed Jones)

A cyclist wearing a mask prepares to cross a road during severe pollution in Beijing on January 12, 2013 (AFP Photo / Ed Jones)

People walk during a heavily hazy winter day in central Beijing, January 12, 2013 (Reuters / Jason Lee)

Pedestrians wearing masks wait to cross a road during severe pollution in Beijing on January 12, 2013 (AFP Photo / Ed Jones)

People walk on a pedestrian bridge on a very hazy winter day in Beijing January 12, 2013 (Reuters / Jason Lee)

Vehicles drive on the Third Ring Road on a very hazy winter day in Beijing January 12, 2013 (Reuters / Jason Lee)