Enter the lung particle and plan to include in the

Enter the lung particle and plan to include in the air and appraise Will require the exemplary city to monitor
It is reported ' Reporter Wang Shuo) Began yesterday, " determination weight law of surrounding air PM10 and PM2.5 " (hereafter referred to as " determining ") that environmental protection department was released Begin to implement. " determined " had gone on standardizing to the determination of PM2.5 for the first time, but in " surrounding air quality criteria " that carried on in environmental protection department recently is revised, PM2.5 has not been included in the mandatory monitoring index.

PM is " The particulate matter " Abbreviation,represent PM10 it equal to or less than diameter suspension particle of 10 microns, can suck and collect particle at size richly by respiratory system in human body. But PM2.5 threaten to health large, collect to the lung depths while being rich while being easy extremely, called into the lung particulate matter. Compared with more thick particulate matter, the poisonous harmful substance rich in a large number of, and can stay in the atmosphere for a longer time, it is farther to transport the distance, the impact on atmospheric environment and health is greater, cause black lung and main murderer of it of gray haze.

At present, sun, American, India, European Union,etc. have already included PM2.5 in the national standard and carried on the mandatory restriction successively. In our country " surrounding air quality criteria " of the 1996 version, PM10 is listed in and controls the standard, but not listed PM2.5 in.

" determine " changes the floating dust into inhalable particles ( PM10) ,Stipulated the determination methods of PM10 and PM2.5 at the same time. But because before this in " surrounding air quality criteria " was revised, PM2.5 has not been included in the mandatory restriction, so this data determining the method examines out are only worth consulting.

" We will revise and improve " surrounding air quality criteria " as soon as possible, will include PM2.5 in the evaluation index. " Not long ago, Zhao HuaLin, chief of department of pollution control said to the media environmental protection department. It is reported, the environmental protection department will have required the exemplary city of environmental protection to take the lead in launching the supervision on PM2.5 recently.

Response

Why not carry out and monitor PM2.5 so far

Official side

Technology is out of question but the opportunity is unripe

Begin on October 30, in the ones that fall into the fog in three days continuously in Beijing surround, but the air quality which Municipal Environmental Protection Agency announces is only " Slight pollution " . When being a little rich, net friend put up the intersection of American and whom embassy announce, break 300 air pollution index while being constant.

The disparity of both sides is so large, mainly because our country has not included in PM2.5 and monitored. It is reported, PM2.5 of the city mainly comes from generating electricity with coal, the industrial production, car exhaust discharge etc.. In the intersection of China and most area, especially North China, PM2.5 whole the intersection of air and weight of suspended particulate substance more than half arrive.

The department expert in environment protecting mode says, list PM2.5 in the air quality index to monitor, the problem does not exist technically in our country, just " The opportunity is unripe " . As to this, the relevant personage explains, the density level of PM10 of our country is still relatively high at present, the problem has not been solved at all yet, but the pollution situation of PM2.5 is relatively heavy, if make the surrounding air quality criteria of implementing PM2.5, will exceed standard on a large scale.

It is reported, Beijing, Shanghai,etc. has already monitored PM2.5 spontaneously at present. The materials reveal, there will be more than 40 PM2.5 regular monitoring points after 2000 in Beijing, have just never released it to monitor the result to the outside.

Among the people

The personage in environment protecting mode examines PM2.5 by oneself enthusiastically

Compared with the situation that official actively, the personage supervision on PM2.5 in environment protecting mode is eager to have a try among the people.

In October of this year, the non-government environmental protection organization Dahl asks that the society begins to organize volunteers examining PM2.5 in the air of Beijing to seek knowledge naturally, and announce the result on its website. October 22, stone Pan, entrepreneur of real estate, stand erect, release a iPad sectional drawing when being a little rich, reveal in the embassy courtyard near bright Maqiao of E.3rd Ring Road, the thin particulate matter (PM2.5) The index is 439, grade " Poison " .

In two days, this sectional drawing was transmitted nearly 5,000 times, the net friend has obtained more convenient route to know air quality data of American embassy too.

The information has limitation too. The American embassy explains in the official website meticulously: The air quality of the whole city is unable to get through the data of the single air monitoring station.

Dahl asks environment and health institute activity contact Wang QiuXia but expressed, more than 20 volunteers have participated in examining at present, they upload it from PM2.5 data that are examined in the form of resident's diary. But this kind of uploading often relatively lags behind, even can't accomplish continuously, give a great discount in result.

Author: Wang Shuo


Enter the lung particle and plan to include in the air and appraise Will require the exemplary city to monitor