Beijing's claims of clean air called into question.Byline: ANI London, June 18 (ANI): The Chinese environment ministry has called into question Beijing's claims that its air has been drastically cleaned up, from last year's Olympic Games Olympic games, premier athletic meeting of ancient Greece, and, in modern times, series of international sports contests. The Olympics of Ancient Greece Although records cannot verify games earlier than 776 B.C. till the present day. Beijing spent the run-up to last year's Olympic Games claiming that the city's air had been cleaned up, but according to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. a report in Nature News, those measurements are now being called into question. Using an air pollution index (API) in which a score of 100 or lower indicates air quality as 'good', all 17 days of Olympic events in Beijing made the grade. Overall, the city hit an all-time high of 274 good air days in 2008. APIs can be calculated in various different ways. Beijing's includes measurements of sulphur dioxide sulphur dioxide Noun Chem a strong-smelling colourless soluble gas, used in the manufacture of sulphuric acid and in the preservation of foodstuffs Noun 1. , nitrogen dioxide nitrogen dioxide n. A poisonous brown gas, NO2, often found in smog and automobile exhaust fumes and synthesized for use as a nitrating agent, a catalyst, and an oxidizing agent. Noun 1. and particles smaller than 10 micrometres across - dubbed PM10. Controversially, it has not previously used low-level ozone measurements to calculate APIs, and it does not report on the level of particles smaller than 2.5 micrometres across (known as PM2.5). Both ozone and PM2.5 have potential negative impacts on health. Now, Jian Wang Jian Wang may refer to:
He said that the cause is ozone pollution and, especially, PM2.5. "PM2.5 is to blame for the haze," said Wang. "Vehicle exhausts that contain black carbon, sulfates, and nitrates contribute a lot to the density of PM2.5, which is more damaging to the respiratory system respiratory system: see respiration. respiratory system Organ system involved in respiration. In humans, the diaphragm and, to a lesser extent, the muscles between the ribs generate a pumping action, moving air in and out of the lungs through a than PM10," he added. He added that the ministry will soon start to include ozone and PM2.5 in its API calculation, with pilot projects to monitor the pollutants pollutants see environmental pollution. expected to start in the deltas of the Yangtze and Pearl rivers next year. "This is quite a turnaround," said Steven Andrews, an environmental consultant who spent 12 months in Beijing from September 2006 as a Princeton-in-Asia fellow. Andrews said that the attention to ozone and PM2.5 is welcome, but is concerned that the data might not be reported openly. He said that the Beijing Municipal Environmental Protection Bureau previously listed ozone readings, but stopped in 2002. Last year, Andrews had accused Beijing's environment bureau of moving some of its seven air-monitoring stations to improve the API results. Andrews said there is now no way to prove this because data from individual monitoring sites, which had previously been available online since January 2003, have now been removed. Despite the criticism surrounding the API, Beijing has said that it was halfway to its goal of having 260 days with excellent or fairly good air quality this year. (ANI) Copyright 2009 Asian News International The Asian News International (ANI) agency provides multimedia news to China and 50 bureaus in India. It covers virtually all of South Asia since its foundation and presently claims, on its official website, to be the leading South Asia-wide news agency. (ANI) - All Rights Reserved. Provided by Syndigate.info an Albawaba.com company |
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