[2013] Special National People are most concerned thing: haze



In 2013, more than 20 provinces and cities nationwide haze caught with ten volts, "haze" has become a national topic. What about the haze, we focus where is it? Daily we know we summarize the last year on haze some of the most important knowledge.

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Deal with haze, Which mask for you?

? Interpretation: The PM2.5 burst table, choose a suitable mask to go out is a smart move. Signal masks on the market variety, masks Which is appropriate? Common medical gauze masks or surgical masks Certainly not, N95 is the minimum standard. But people weak heart and lung function, the choice of masks, with caution.

PM2.5 how harmful to human health?

Interpretation: PM2.5 refers to the diameter of the atmosphere is less than or equal to 2.5 micron particles, also known as particulate matter into the lungs. There is no body of PM2.5 filter, blocking ability, and PM2.5 on human health hazards appears to be more severe, mainly in the respiratory and cardiovascular systems, such as cough, shortness of breath, asthma, chronic bronchitis, lung swollen, arrhythmia, heart disease and so on cardiopulmonary disease.

Cooking fumes are a major source of PM2.5 really do?

Interpretation: where cooking fumes say is the restaurant industry rather than home cooking. Never underestimate the contribution of Chinese restaurants smoke this city of PM2.5. Cities like Beijing, food and beverage industry has been rapid development, fume treatment technology has not been improved, so that the air pollutant emissions catering industry in recent years is still rising rapidly.

Automobile exhaust accounts for only 4% of the source of PM2.5 in Beijing do?

Interpretation: Recently, network transmission "Beijing haze scientists identified six major contributing sources" as saying the relevant vehicle exhaust pollution plus the proportion of waste incineration, accounting for only 4% of the original Beijing PM2.5 sources. But the reality is not the case, the contribution of vehicle emissions on PM2.5 concentration has two main aspects, 4% above data refers only to the primary particles PM2.5 proportion occupied by automobile exhaust.

Haze make fresh black lung pulmonary six days? Not so exaggerated

Interpretation: Fudan University School of Public Health, Department of Environmental Health Research, said after the autopsy found by rats, six days fresh lung blackened lungs can not be reversed. But the experiment to use a high concentration of PM2.5 particles in solution directly into the lungs, which is the reality of life in aerosol form, relying on PM2.5 breathing into the lungs, from the lungs to the manner and effect deposition He said to be very different.

Haze swept through 25 provinces, Beijing people of calm

Interpretation: Overnight, the Yangtze River Delta region also fall into the "decahedron haze volts." December 4, Nanjing this year for the first time to start the highest level of air pollution red alert. Shanghai is also the first release second high-level haze orange warning signal since 2011. Yangtze River Delta area into a large haze pollution, very simple objective factors: weather conditions are very unfavorable. Meteorology tube this is called "static stability of the weather."

Straw burning will seriously pollute the air?

Interpretation: East haze serious, is considered a very important reason is the recent focus on rural straw burning. Someone asked farmers burning straw diet for a long time, why not previously haze? In fact, is there, all kinds of historical records there, but now there is no serious Bale.

Straw autumn, winter haze

Interpretation: Every good air have similar causes, and each time has its own separate causes haze. Although the exact causes of haze in late 2013 of Jiangsu, Zhejiang region, we need more data to make but you can make a inference: Agricultural straw burning is likely to be the cause of this large-scale haze formation.

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