PM2.5 standards included in the review of China 80% city air quality standards

Yu currently no PM2.5 GB Guangzhou provisional does not announced monitoring numerical environmental Department said national intends with who standard developed fine particles property evaluation approach as PM2.5 into evaluation standard in China capturing city air quality does not compliance recent due to North area ash haze weather frequency made, was called ash haze "culprit" of fine particles property (PM2.5) was unprecedented concern. from civil to expert are in appeal Government as soon as possible introduced PM2.5 of evaluation standard, and announced on its of monitoring results. yesterday, famous atmospheric environment expert, and　　School of environmental science and engineering, Peking University Zhang Yuanhang gave a lecture in Guangzhou. He said PM2.5 are included in the national environmental quality monitoring system will soon be concluded, according to the World Health Organization evaluation criteria, air quality standards in cities across the country fell to 20% from 80% now. Guangzhou Municipal Environmental Protection Bureau revealed that currently 10 countries charged with monitoring in Guangzhou
In monitoring PM2.5, but due to national also no on PM2.5 of evaluation standard, monitoring also is exploration stage, provisional no announced numerical of plans. text/reporter Juan Du in China is about to introduced PM2.5 atmospheric environment quality standard in accordance with the World Meteorological Organization of provisions, dang atmospheric level visibility is less than 10 km, relative humidity is less than 90% of situation for ash haze. in recent years, ash haze has became China many city faced of maximum pollution problem, and PM2.5 is which of key. on this, Zhang Yuanhang said:　　"Haze of the Pearl River Delta from the extinction effect of PM2.5 in the atmosphere, weather factors were external causes, atmospheric contamination is the main factor." A pollutant control, first to make accurate monitoring, surveillance and a complete evaluation criteria. PM2.5, both in monitoring and evaluation standards at present are not perfect. among the people, PM2.5 problem
To the unprecedented attention, because the damage to human health greatly. Zhang Yuanhang revealed: "PM2.5 can enter the lung or alveolar, had a great influence on health, but also to carry heavy metals and other substances in the air, respiratory, cardiovascular, nervous system, immune system, reproductive ability and genetic has an impact." Recently, users in micro-Bo in the announced, United States to China Embassy station of air monitoring data indicates that, Beijing air pollution up dangerous level, and Beijing EPA monitoring data is also is three level minor pollution. this which of difference on is United States to China Embassy of data in the joined has PM2.5, and this a indicators is not included in China air quality evaluation standard. Chloe Replica Bags on this, Zhang Yuanhang said: "Beijing currently of PM2.5 hours monitoring value often in 100 to 200 Zhijian, In accordance with the United States has been exceeded several times. PM2.5 will include air quality monitoring system in our country will soon be a conclusion, the State
Ministry of environmental protection is to intensify discussions. "　　Zhang Lijun, Deputy Minister of environmental protection on November Chloe Replica Bags 10, the seventh International Symposium on regional air quality management, PM2.5 air quality standards will be published in China. it is reported that the standard will adopt the World Health Organization (WHO) provides the first value of the transition to explain PM2.5 pollution harm index.　　Zhang Yuanhang revealed that the standards of who and the United States standard than a little loose, even according to the who Chloe Replica Bags standard, after joining the PM2.5, city of China's air quality standards will from now on 80% fell to cent, "I think it is the Ministry of environmental protection has not made up his mind to incorporate PM2.5 air quality monitoring system." Zhang Yuanhang revealed that joint Guangdong-Hong Kong-Pearl River Delta Air quality monitoring network in 2006, at 6 points for all of the PM2.5 concentrations were monitored in accordance Chloe Replica Bags with United States standards, Guangzhou wanqingsha site exceeds the number of days is 1
28 days, if you then join the ozone, exceeded the number of days up to 165 days. yesterday, environment monitor Center station in Guangzhou Wang Shaoyi says: "according to monitoring, Guangzhou PM10 (particulate matter of 10 microns in diameter) there are 60%~65% PM2.5 in."　　Zhang Yuanhang, said: "like the PM2.5 and ozone these Chloe Replica Bags indicators should be first in 47 major cities in China, including Guangzhou, and at least in the Pearl River Delta, Yangtze River Delta and the three major cities Beijing, Tianjin and Hebei implemented."　　Telling you my PM2.5 refers to atmospheric particulate matter less than or equal to 2.5 microns in diameter, are called into the lung particles, a diameter of wire thickness of less than a human hair one-twentieth. Beijing Chloe Replica Bags Blue Sky project in 1998 in the experiment demonstrated for the first time haze consist mainly of PM2.5, and 2.5 microns to 10 microns in diameter between the particles is very small. Guangzhou the first 10 months of haze days falling
Six into the Ministry of environmental protection in charge of the recent statement said some domestic cities don't have PM2.5 monitoring capacity, the official must publish the PM10 data, numeric value for PM2.5, wish to announce their decision, and you can even set their own evaluation criteria. To date, the national PM2.5 monitoring value none officially announced. in response, the Deputy Director of the Guangzhou Municipal Environmental Protection Bureau and willow said yesterday: "Guangzhou of PM2.5 monitoring numerical nor announced plans for the time being, though monitoring has started very early."　　Environment monitor Center station in Guangzhou Wang Shaoyi told reporters: "the monitoring of PM2.5 is not difficult, and PM10 monitoring instruments are the same, just add a cutting head, particulate matter of 2.5 microns in diameter filtered from, and then into the analytical instrument. Guangzhou currently 10 countries control PM2.5 monitoring sites are to be monitored."