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空氣污染

隨著中國北部地區頻繁出現霧霾天氣,這一現象引發了社會對大氣污染的關注。

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Journalists take pictures of Fonterra Chief Executive Theo Spierings (R) during a news conference in Beijing August 5, 2013. New Zealand's Fonterra said on Monday that milk products from two companies that use its raw materials are safe because any bacteria would be killed during processing, and reiterated that food safety was its priority. REUTERS/Kim Kyung-Hoon (CHINA - Tags: FOOD POLITICS BUSINESS)
Medizin Krankheitserreger Bakterien Clostridium botulinum Erreger von Botulismus Mikroaufnahme Rasterelektronenmikroskop REM-Color medicine bacteria Cbotulinum04-40Kc
Visitors wearing masks are seen at the Tiananmen Square in heavy smog in Beijing, China, 28 February 2013. Beijing warned residents to stay indoors as air pollution exceeded hazardous levels five days before Chinas national legislature begins its annual meeting, with thousands of delegates expected in the capital. Concentrations of PM2.5, fine air particles that pose the greatest health risk, rose to 469 micrograms per cubic meter at 10 a.m., near Tiananmen Square compared to an average of 275 in the past 24 hours, the Beijing government reported. The World Health Organization recommends 24-hour exposure to PM2.5 of no higher than 25. The level dropped to 163 at 12 p.m. The country opens its annual National Peoples Congress on March 5 to set this years growth target and discuss policies.
epa03806159 Thai officials use oil absorbing sheets to clean up crude oil which was washed ashore at a beach of Samet Island, a popular tourist destination in Rayong province, Thailand, 29 July 2013. An oil spill caused by an offshore pipe leak on 27 July has released about 50,000 liters of oil into the Gulf of Thailand, which has now reached Samet Island. EPA/STR THAILAND OUT
A container of MOX fuel is unloaded from a vessel at the Kansai Electric Power Co.'s Takahama nuclear plant in Fukui prefecture on June 27, 2013. The cargo of mixed oxide (MOX), a blend of plutonium and uranium, was the first such nuclear fuel to arrive in Japan since the atomic disaster at Fukushima, which was sparked by the earthquake and tsunami of March 2011. AFP PHOTO / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)
Motorists drive as haze covers Muar city in Muar, southern Malaysia on June 23, 2013. The thick smog brought on by forest fires in Indonesia has choked parts of southern Malaysia, prompting environment officials to push for an emergency on June 23. AFP PHOTO (Photo credit should read STR/AFP/Getty Images)
An aerial view of haze covering Indonesia's Riau province June 20, 2013. Singapore called on Thursday for "definitive action" from Indonesia as air quality stuck at very unhealthy levels for a second day because of forest fires in its neighbour, disrupting businesses in the prosperous city-state. REUTERS/Beawiharta (INDONESIA - Tags: ENVIRONMENT DISASTER)
Singapur, boomende Wirtschaftsdrehscheibe Asiens. Nur eine grundlegende Ressource ist rar: Wasser ++DW / Roxana Isabel Duerr ++
A hazy nightview is taken in severe smog in Beijing, China, 12 January 2013. Beijing was hit by its worst smog in almost a year. Exacerbated by heavy fog, the dense, choking smog that had blanketed the capital for the better part of the past fortnight plunged to a new low yesterday morning. Although the capital is often hit by smog in winter, the past two weeks have seen one of the longest stretches of smoggy days in Beijing in years. Pollution readings, including those for the smog-inducing fine particles known as PM2.5, from the local environmental watchdog and the US embassy were well in severely polluted or hazardous levels for most of Thursday night and Friday morning.