Regarding the pollution of the Yellow River, what are the causes of the pollution of the Yellow Rive

There are many reasons for the water pollution in the Yellow River Basin, which can be summarized as follows. (1) Some large and medium-sized cities in the basin are located near the river, and some large industrial and mining enterprises are also distributed along the river. At the beginning of the 90s, the urban population in the basin was 20 million, of which more than 2 3 were concentrated in these cities and workers.

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.

The extent of pollution in the Yellow River is a complex issue, and its pollution level varies with time, location, and different sources of pollution. Since I don't have access to real-time data, I can't provide up-to-date pollution indicators.

However, for many years, the Yellow River has been facing serious water pollution problems. Factors such as industrial and agricultural drainage, urban sewage, and domestic waste have all had a negative impact on the water quality of the Yellow River. Some of the major pollutants include heavy metals, organic pollutants, pesticides, chemical fertilizers, etc.

In order to improve water quality, China** and relevant authorities have taken a number of measures to reduce the import of pollutants and improve the water quality of the Yellow River. For example, we should strengthen pollutant discharge permits and supervision, promote the control of agricultural non-point source pollution, and increase the reduction of industrial pollutants. However, due to the complexity of the pollution sources and the difficulty of treatment, improving the water quality of the Yellow River is a long-term and arduous task.

Specific data and assessments of the extent of the Yellow River's pollution should be regularly monitored and published by relevant environmental monitoring agencies and authorities. You can refer to public reports from local or national environmental authorities or data from relevant research institutes to get the latest pollution level indicators.

Since 1972, the Yellow River has often been cut off. There are many reasons for the interruption of the flow, which can be summarized as follows:

1.Global warming - With the intensification of global warming in recent years, on the one hand, the evaporation of rivers has increased significantly, and on the other hand, the melting of glaciers in the upper reaches of spring and summer absorbs a large amount of heat, resulting in lower than usual local temperatures in the interior, reducing the temperature difference between the inland and the ocean, and then causing the monsoon to weaken, and the lack of water vapor brought by the monsoon from the sea surface to the inland. Although global warming has increased the flow of upstream water by melting glaciers, it has not offset the effects of increased evaporation and weakening of the monsoon.

As a result, the amount of water in the middle and lower reaches is decreasing year by year.

2.Vegetation destruction - The Loess Plateau has serious vegetation destruction, the land lacking vegetation conservation is gradually desertified, the evaporation becomes high, and the dry groundwater needs to be continuously absorbed and flowed through the river to replenish.

3.Backward irrigation methods -- most of the middle and upper reaches of the Yellow River flow through economically underdeveloped areas and poor areas, lacking water-saving irrigation technology and funds, and most of them are flooded, and the Yellow River is seriously wasted.

The upper reaches belong to the arid and semi-arid areas, the precipitation rate is low, the middle reaches are the main recharge areas, but the soil erosion is serious and the seasonal changes are large, and the downstream basin area is small and the recharge is small.

The population in the basin is growing rapidly, and the population growth rate is far outpacing the food growth rate;

In recent decades, with the development of society, the water consumption of industries and cities along the Yellow River has been increasing, and the irrigation area of the Yellow River has been expanding.

The regulation capacity of reservoirs is low, and the management of water resources is not uniform;

The water fee is low, and the low water price cannot arouse people's awareness of water conservation, and the waste of water in industry and agriculture is huge;

Environmental pollution has dramatically reduced the utilization rate of the Yellow River's water. Fast.