But for PM2

Release according to net friend"air quality report in Peking", 15:00 on February 21, PM2.5 index numberses in Peking come to a 510, grade is Beyond Index.(is over-standard)The net friend calls with in succession Peking is like poison room, data also all"explode form".According to understand, currently domestic mostly the city is monitor toward air quality standard is a PM10, namely diameter is bigger grain thing in 10 micron the followings, but for PM2.5 this kind of tiny particle son didn,t specially supervise and control.The reporter discovers from the city environment website in the monitor center, Shanghai as well the data that release PM10, don,t see the related data of PM2.5.
"Influence healthy factor to say, the PM2.5 is more important" net friend"the cat sand of one leaf is boat" tells a reporter, .The latter he said that the PM10 is bigger grain of smoke type, will be adsorbed by nose or top breath way, can drive in the direct inhalation lung, endanger to the human body larger.
Net friend"the freedom visits an elder brother" as well keeps speech, China adopts currently of the air pollution index(API) didn,t carry on supervision to the PM2.5, "even if the international community discovers the harm of one PM2.5 rightness human bodieses biggest, in succession more new atmosphere quality standard, strictly supervises and controls PM2.5 densitieses of, Chinese department concerned still declares categorically to monitor PM10 more, match state of the nation,, hence people still keep living everyday, be reached a mark, of, quality good air, in the middle".
To this, the city environment Tiffany & Co monitored an expert to say, for the monitor of thin grain pollutant, environmental protection section just in the middle of actively studying, but nation didn,t°yet a set related standard.PM2.5 grain thing indeed because the particle physical volume is small, more easily adsorb harmful material, but the PM10 can also get into a breath way and together breathe the disease of system also and contact closely.Currently there is part point in Shanghai Be located on to monitor PM2.5 datases, but outward didn,t release a related information.Shanghai is a large city especially, currently the thick thin grain in the air keep both, the thin grain has a half on the average or so, indeed have the necessity of supervision.(New people net Yuan Rong)