Latest News:  
Beijing   Cloudy/Overcast    3 / -4   City Forecast

People's Daily Online>>China Society

Daily report on PM 2.5 density soon

By Xie Yu (China Daily)

09:36, December 26, 2011

SHANGHAI - Pilot monitoring showed the density of PM 2.5 in Shanghai exceeded the national standards of grade II air quality from 2006 to 2010. A daily report on PM 2.5 level in Shanghai will likely be published from next year.

PM 2.5, known as the smallest and most hazardous airborne pollutant, is smaller than 2.5 microns in diameter. Getting these inside one's lungs is harmful. Since autumn, when consecutive smoggy days severely disturbed people's lives in Beijing and other big cities in China, it has become something of a household word associated with health concerns.

Shanghai Environmental Monitoring Center (SEMC) said on Friday that they have been carrying out pilot monitoring of PM 2.5 since 2005, and now had 24 monitoring spots in Shanghai. Monitoring results showed that the level of PM 2.5 failed to reach the national standards for grade II air quality.

The national standards refer to a draft standards released by the Ministry of Environmental Protection in November, which includes a five-grade classification of air quality on the basis of pollution indices, with grade I being the best and grade V the worst.

According to monitoring statistics released by SEMC, since 2005 to 2010, the average annual density of PM 2.5 was 0.044 - 0.053 milligrams per cubic meter, failing to reach the level of grade II air quality, which is 0.035 milligrams per cubic meter. The statistics also showed PM 2.5 density in Shanghai was about the same or down slightly in the last five years.

【1】 【2】


Leave your comment1 comments

  1. Name

Canada at 2011-12-2770.36.49.*
I find it interesting that the U.S. embassy makes an issue out of this in China, but I don"t think they do the same in U.S. cities that are polluted. I haven"t heard this info mentioned in our newscasts.

Selections for you

  1. Chinese Premier Wen commend contributors to grain output

  2. Toyota unveils new compact hybrid car "Aqua"

  3. Villagers practice waist drum dance for New Year in E. China

  4. Harbin swimmers prepare for a cooling off

Most Popular


  1. Common interests prevent 'Cold War'
  2. War-related carbon emissions deserves attention
  3. Noda's trip enhances China-Japan mutual trust
  4. Economic outlook for next year could be dimmer
  5. Human library promotes understanding
  6. For amiable China-Japan ties
  7. Europe should make greater efforts to save itself
  8. China unlikely to see hard landing in 2012
  9. Euro depreciation affects Asian manufacturing
  10. To whom does Pacific Century belong?

What's happening in China

Villagers practice waist drum dance for New Year in Shangdong

  1. Chinese mark Mao's birth
  2. Natural gas imports expected to increase
  3. Economic growth set to fall
  4. China boosts flight punctuality rate in 2011
  5. China stresses stable grain production

PD Online Data

  1. Traditional Mooncakes
  2. About Mooncakes
  3. History of Mooncakes
  4. Modern Mooncakes
  5. Legends of Mid-Autumn Festival