China meets fog haze it much: Strong fog lock the city where PM2.5 comes from-

China meets fog haze it much: Strong fog lock the city, where PM2.5 comes from-
Fog haze, see fog haze it again! The national climate centre monitoring data of China Meteorological Administration reveal, so far on September 1 this year, the fog haze weather occurs frequently in the intersection of of our country Middle Eastern Department and district, more broad fog haze weather course takes place 12 times altogether. From the South to the northern part of the country, with frequent " calls on " of the fog haze ,The strange vocabulary of a script enters people's sight together: PM2.5. The intersection of well-known figures and stone Pan stand erect, insist, upgrade Beijing PM2.5 density when being a little rich; Writer Zheng YuanJie's a little rich head is a gauze mask to write PM2.5; Zhong NanShan, academician of Chinese Academy of Engineering, indicates to the public it influences the health that PM2.5 will be all-round too Strong fog locks the city, shrouded a layer of haze not getting rid of in the heart for people: PM2.5, what the thing? PM2.5, where to come from Will it be the last week Christmas, go to school pieces of Su of U.S.A. have a holiday and get back to Hangzhou, this was the 3rd vacation when she has gone home, but her gauze mask does not leave the body, that red gauze mask to print beautiful small bell this time, not because in order to meet Christmas, but should be used for blocking the air formidable enemy PM2.5, " no matter used, in order to settle down. " She says. Before this in global air quality which World Health Organization announces ranks, Hangzhou has already fallen outside a thousand, it is uneasy that this makes her heart of the other shore by the ocean grow. Like Zhang Su, a lot of people begin to have a smattering of PM2.5: This is that the diameter is smaller than particulate matter of 2.5 microns, 1/30 of less than hair silks in atmosphere, though the naked eye sees, can reduce the visibility of the air, form the fog haze, main source of PM2.5, generate electricity while being daily, industrial production, the intersection of car and the intersection of exhaust and the intersection of person who discharge and residue that is burn and discharge under course. PM2.5 floats attaching a large number of virus and harmful substance in the air, is considered to be " arch-criminal " of the air pollution . In fact, before PM2.5 is known very well by people, PM10 (diameter is in particulate matter of under 10 microns) All the time it is our country that has weighed the important index of air quality. However, from 10 to 2.5, difference is not only the diameter. Enter December, it is growing on and on to attach to the second patient of division of respiratory disease of hospital in Zhejiang University medical college, especially in season when the fog is frequent, the number of people of the emergency call will obviously rise. " The size of the particulate matter has determined the position where they deposit in the respiratory tract. "The diameter is smaller than particle of 2.5 microns, it is most violent to damage the human body, they will enter the alveolus directly, and retain in the depths of the lung, it is very difficult to discharge. " Medicine two expert of institute division of respiratory disease Liu Jin in Zhejiang says, and the diameter is in particulate matters about 10 microns, even if suck the human body, the majority only stays in the upper respiratory tract, can be breathed out. There are data that reveal, especially North China where industry concentrate in most areas of China, PM2.5 whole the intersection of air and weight of suspended particulate substance more than half arrive. In fog it, emergency call, out patient increase and already become normality. While regarding the situation as very grave or critical, the relevant action is thereupon launched too. Just this month, at Hangzhou, news briefing which the Ningbo Environmental Protection Agency of two places successively held, have made explanations to PM2.5. Hangzhou Municipal Environmental Protection Agency says, the typical particulate matter is mainly dust,etc. that the exhaust, ground which the car discharges constructed in the air of Hangzhou urban area, strive to take the lead in putting out PM2.5 subject at home in Hangzhou. In Ningbo, lead to the fact whom PM2.5 pollute urban fire coal, wind-borne dust, motor vehicle, the intersection of chemical industry and the intersection of person who discharge and phenotype pollute mainly, in view of this, Ningbo has taken multiple measures to improve air quality too. And by 2013, Zhejiang the whole province or basically building up PM2.5 monitoring system. News comes too in the environmental protection department in the country: <>(draft two times) Solicit the opinion to the whole society publicly, biggest adjustment of the draft two times is to include PM2.5, ozone in the regular air quality evaluation, this is that our country makes PM2.5 standard for the first time too. PM2.5, how greatly to endanger December 17, the intersection of medicine and the intersection of involvement and the intersection of lung and dirty disease that two institute hold study practical technique at the study class in Zhejiang, the reporter has met the first hospital in Peking University and breathed head of the department of internal medicine Wang Guang to send, "PM2.5? You have asked people correctly! " The confidence that Wang Guang sends, not only because he comes from ground Beijing of serious disease of PM2.5, because in this concept when the public is still very strange, he sets foot in to some extent. That is Beijing of the year of the Olympic Games, 2008. Wang Guang has sent and installed 4 passways of air sampling devices and air quality monitoring instrument in the rooftop of in-patient dept. of the first hospital of Peking University with his students, monitor the density of PM2.5 in the air continuously during Olympic Games in Beijing, the experiment group chooses the test that 128 healthy young men do 4 indexes during this period at the same time. The test reveals, air quality will obviously take a favorable turn compared with June in August of 2008, the density of PM2.5 drops notably. And find the air pollutant and change of the human hormone level have relevance, improving air quality in short term may exert an influence on the human hormone level. " our test indicates, PM2.5 will cause influence on the respiratory system " ,The conclusion that Wang Guang is sent and tested is obvious, danger that may cause include respiratory tract stimulate, cough, have difficulty in breathing, reduce the intersection of lung and function, aggravate asthma, cause chronic bronchitis. However, endanger and is far above it herein. Zhong NanShan, academician of Chinese Academy of Engineering, once said to the media: "PM2.5 to cardiovascular and to nervous system, to have influence is not no simple to the respiratory system while being other. " Think, the atmospheric particulate matter can exert an influence on the cardiovascular system through many ways at present. Particulate matter to enter respiratory system can cause lung and oxidizing, should defy all over and inflammation react, activate the blood coagulation mechanism, weaken the blood vessel function and increase arteriosclerosis; Stimulate the sympathetic nerve of lung to produce the secondary nerve to reflect, change the autonomic nerve in the mechanism of reflecting etc. and cause arrhythmically; Can also cause the change of the blood composition, and cause arterial pressure to rise. A large amount of research both at home and abroad still proves, PM2.5 raises until certain density, its crowd's total mortality, respiratory disease mortality and cardiovascular vessel disease mortality are all rising, because the pollution states of various countries are different, different countries increase the intensity different. In the face of violent PM2.5, " main reason of lung cancer " The tobacco seems to keep a good distance from too. According to the statistics of Ministry of Health, though Chinese smoke the intensity has not had obvious change in the past 40 years, but the morbidity of lung cancer shows a tendency to obviously rise. Therefore when PM2.5 is called the focus of the public opinion, guess and send with it: The root of the trouble which causes lung cancer is not perhaps the tobacco, but been hiding in invisible PM2.5 all the time? "Can only say greatly Angry pollution the intersection of promotion and factor one of of lung cancer, main reason need checking card still. " Wang Guang sends and says. After Beijing Olympic Games, the test that Wang Guang sends has not been stopped, has compared with the result and revealed, in the Olympic Games, back, number values of PM2.5 are all obviously raised, the impact on tester is strengthened too. "This shows, pass strict control, PM2.5? Neon �� pray so quiet Wan call out shelf to imitate secretly! ? Prevent and control, what can be done Sojourn in the intersection of Beijinger and the intersection of loudspeaker and Miss of Hong Kong, go back Beijing recently number of times frequent, " begun to wear the gauze mask and use the purifying device yet, but it is anxious to already begin. I have a lot of friends at cold, I wonder whether to involved in PM2.5. " The increasingly many person holds this kind of psychology, what are always wanted to do to PM2.5. PM2.5 index flashes the redlight, at 2003 SARS The gauze mask in the prevailing street, become the hot-sale products once again when first type H1N1 influenza will be broken into with 2009. Air purifier to place people great expectations, indicate, have the intersection of dust removal and air purifier of efficiency become, sell hotly even more, many consumers do not hesitate to spend and buy with much money. Some the intersection of network and statistical data of store reveal, here the past November just now, the intersection of air purifier and sales volume increase and exceed 50% than last month, increases and exceeds 250% at this time compared with last year. Gauze mask, purifying device, green plants These are which stop harmful substance " The distinguished person " ,Defeating and raising when play chess with PM2.5? " the gauze mask can not contribute " ," actually like the air purifier, plant and grow all kinds of plants that Wang Guang judges chillily and quietly, all futile to stopping PM2.5. " Certainly it is not idle, Wang Guang sends proposing, more easily infected group such as old man, child and chronic disease patient,etc., when the atmosphere is seriously polluted, should try hard to reduce going out, wait to close in the room the good doors and windows. On 20 - 21 of December, the seventh national environmental protection conference is holding in Beijing, exceed standard seriously in the face of 9 places PM2.5 such as Shanghai Chongqing of Tianjin. Chinese environmental monitoring master station head Luo Yi says, if condition permitting, before proposing 2013 years, city and " three districts and nine groups " that paid close attention to the prevention and control of air pollution Take the lead in monitoring PM2.5. Before the end of 2015, stand in all region cities and other backgrounds, stand and monitor PM2.5 in the area. Standard department's chief Zhao YingMin of science and technology of environmental protection department says, our country will try to issue and implement the new " surrounding air quality criteria " as soon as possible, adopt implementing scheme step by step, some the intersection of economy and technological the intersection of foundation and better and person who compound the intersection of air pollution and the intersection of issue and relatively conspicuous district take the lead in implementing the new standard, all parts implemented the new standard in an all-round way on January 1, 2016 at the latest. (reporter Chen Ning)

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