Why rivers are polluted 5, why rivers are polluted

There are many factors, the most direct is that the manufacturer's sewage is discharged directly into the river without passing through or unable to be treated at the sewage treatment plant, and the pollutants will cause pollution if they exceed the degradation rate of the river itself. Second, indirect pollution is divided into soil infiltration, there are many pollutants in the soil, and the mutual influence is also complex, and many of the intermediate products produced by the mutual reaction are undetectable by modern technology, so they will flow into the river with the groundwater. From an atmospheric point of view, it is possible to affect rivers through acid deposition, but this is not too much of a problem.

The second way to look at this problem is from the perspective of river development and managers, developers currently rarely consider the ecological impact of river runoff decline, and also ignore the ecological value and environmental value of rivers, such as the manure produced by duck farms, garbage filling lakes in each city, and managers and developers sometimes sympathize with the relationship between people, so managers are also a few beneficiaries, their responsibilities are unclear, environmental laws and regulations play a very small role, and economic means in our country, In the end, the whereabouts of the money were not explained, and the penalties were quite light, such as ConocoPhillips' oil. Together, these contribute to the pollution and deterioration of the river.

Because people have no morality, there are other natural factors such as soil erosion, volcanoes, and natural harmful elements do not flow in

Pollutants, especially oil, will flow over the Yellow River for a long time, which will inevitably form a long pollution belt. Wherever this polluted zone goes, it will inevitably cause mass deaths in the Yellow River.

At the same time, pollutants can also cause the death of these organisms by attaching to plants and waterfowl on the shore.

More severely, if the soil is polluted, then the contamination will be irreversible. Due to the characteristics of oil pollution in pollutants, it is extremely difficult to decompose naturally in nature, and unless it is cleaned up manually, the polluted land will be devoid of grass in the future.

At the same time, this kind of pollution may directly endanger the lives and property of people on both sides of the Yellow River, and if the waterworks and irrigation areas in the lower reaches of the Yellow River happen to pump this section of polluted water, the consequences will also be unimaginable.

When I was a child, I loved the river in my hometown, his quietness, his blue blue, and his contribution to people's names. I play in this small river every day, but last year I moved to a small community in the city, and when I turned on the TV and saw the small river in my hometown on the screen, I was stunned. The small river on the TV screen is floating with the corpses of fish, the river is almost all smelly and dirty garbage, and the grass on the bank is almost yellow, seeing all this, my heart is like a knife, and the pain is too much, I don't hope that one day the river will change back!

So everyone must protect the environment, and don't let the things you live on the side be destroyed!