Why is the Luohe River seriously polluted? What caused the pollution?

In my opinion, compared with nearby cities, Luohe has the least pollution sources.

First, the food industry in Luohe is developed, but the food industry is light industry, with less pollution such as dust and smoke. A few years ago, Yin Ge was still in Yin Ge Avenue, but later they all moved away. The pollution of Huafeng Factory in the east section of Renmin Road has also been opposed by the public.

Second, there are not many motor vehicles in Luohe. Compared with the surrounding big cities, Luohe has a population of more than 2.6 million, and a car for five people is almost 500,000. Moreover, the Luohe River is restricted every winter, so the exhaust pollution is not too big.

Third, straw burning and coal burning do not know where they come from. There are hundreds of thousands of people in Luohe city, most of whom are cooking by gas, heating by heating and burning coal. The countryside is small, and cooking with an induction cooker is also part of it. And natural air purification will not cause great pollution.

Finally, I want to say that the pollution of Luohe is certain, but compared with other places, it is dwarfed. The sky belongs to everyone, and it can't be decided by any one place, but environmental improvement needs the concerted efforts of every place and Qi Xin.

As a former environmental protection raider, I will give you an analysis of the recent air pollution problem. Last year was the strictest year. Except the livelihood project, all production and work stopped all winter, which achieved good results in environmental protection, but also affected economic development. In fact, pollution began after New Year's Day last year, because an old lady in the north froze to death and then the boiler burned coal and let it out.

The main source of smog is coal burning, with heating and power generation in the north accounting for more than 90% (pM2.5), followed by dust from construction sites (pM 10), automobile exhaust and paint. Of course, the serious air pollution this year is caused by deregulation, and there is also a non-human control reason, that is, the weather, mainly wind, rain and snow.

As for why the pollution of Luohe River is more serious than the surrounding area, it is mainly the influence of topography. Luohe is located in the transition zone between north and south, and there are no mountains in the territory. The wind in the north usually blows here at the end of a spent force, which is easy to cause pollutant accumulation and has little to do with local pollutant discharge. Anyone familiar with environmental protection knows that most of the published pollution index 2.5 comes from other places, and the dust is mainly caused locally, but the dust particles are large, which mainly affects pM 10.

From the point of view of pollution sources:

I. Local pollution sources

① The winter temperature in Luohe area is low, the heating coal consumption is large, and the industrial waste gas emission is large. (2) With the popularity of automobiles, urban areas are increasingly congested, and automobile exhaust emissions are large. ③ There is less precipitation in winter, dry ground, windy days and more dust.

Second, external pollution sources.

Shaanxi, Shanxi and Hebei in the north of Henan Province are rich in coal resources, and the coal industry and iron and steel industry account for a relatively large proportion, emitting more waste gas. In winter, the north wind prevails, which brings pollutants to Henan. Looking closely at the day when the smog was serious, not only the smog in Luohe was serious, but all the cities around Luohe were spared.

From the perspective of atmospheric self-purification ability:

① In winter, the phenomenon of frontal inversion is easy to occur, which leads to no convection in the air and difficult diffusion of pollutants. ② Careful observation of the pictures shows that the detection time is around 6 pm, and the radiation inversion is the most obvious around sunset, which will also lead to no convection in the air and difficult diffusion of pollutants. (3) Luohe is a water city, and Shali River runs through the city, which makes the temperature difference between urban and suburban areas small, the heat island effect is not strong, the wind is weak, and pollutants are not easy to spread. (4) Luohe is a water city, which makes the water vapor content in the air high and easy to fog when it cools down. When there are many pollutants in the air, the pollutants are suspended in the air to form smog, which together is smog. ⑤ Topographically, there are Tongbai Mountain and Dabie Mountain in the south of Luohe, and Funiu Mountain System in the west. The north wind is blocked by mountains in the process of carrying pollutants south, and it is easy to gather on the north side of mountains, and Luohe is located on the north side of these mountains.

Let's just say that in Luohe, there is no limit to driving in summer. Why is there no smog? It is foggy at this time of year because there are too many factories in Hebei, and the north wind blows smog in winter. So don't let us Luohe people lie down again. People limit the number of big cities because of traffic jams, so why should we join in the fun? Is the smog in China all due to the smoke emitted by cars in Luohe?

There is no wind in winter. The north wind used to roar, but now the air duct is blocked. The buildings in this city are too high. Without any wind, the air can't flow, and it becomes smog.

Environmental protection, dust prevention and creative writing all work together. The environmental atmosphere of Luohe National Day is higher than in previous years. The sky is blue and the water is clear, and the trees are green and red, which makes people feel very comfortable. The great China.

Reasons for serious pollution in Luohe:

First, there are many motor vehicles.

Second, straw burning.

Third, burn wood and coal for cooking.

Fourth, the population of Luohe inhales more oxygen and exhales more carbon dioxide.

Fifth, this is not only the case in Luohe, but also in places with serious pollution all over the country. For example, Hainan, Northwest China and other places are sparsely populated and there is no smog.

Factory! A power plant was built near my home in the early years. As long as I can remember, since I had it, the smoke has been rolling. In those years without it, it rained every time the peddler wanted to water the land. With it, the rain is abnormal, and the weather forecast makes the air worse and worse. Alas, I don't know why environmental protection doesn't limit its emissions! My mother watched the weather forecast on her mobile phone yesterday. She saw a picture of DuDu and asked me what it was. I said it was smog! Alas!

It is said that there is a Huadian in Luohe with a background.

How much automobile exhaust comes from large polluting enterprises such as Huadian, Yin Ge and Titanium Dioxide Factory?