"It stinks so bad, I'm going to find a way to move out"... The second round of the third batch of central ecological and environmental protection inspectors, which is being carried out in 8 provinces (autonomous regions), found that the "mother river" in some places is suffering serious pollution. Some rivers are directly discharged more than 10,000 tons of water every day, and some form obvious black pollution belts, forcing local residents to choose to flee.
Whether it is "the spring river is as green as blue" or "the shadow is shallow and shallow", the poets' rivers are always accompanied by sparkling waves and the sound of babbling water. In fact, compared with the majestic mountains and the magnificent sea, the river always gives people a feeling of movement and purity. However, in recent years, the pollution of rivers in many parts of our country has become increasingly serious, and the clear river has long become one of the childhood memories that many people are difficult to retrieve. River pollution is caused by pollutants discharged directly or indirectly into rivers, manifested by the deterioration of river water quality. In general, if the pollutants discharged into the river exceed the self-purification capacity of the river, the phenomenon of river pollution will occur. So, who is polluting the river?
Industrial wastewater is harmful, and heavy metal pollution threatens human health
In order to pursue short-term interests, some enterprises do not pay attention to energy conservation and consumption reduction and environmental protection in the production process, and directly discharge industrial wastewater into nearby rivers, which will cause river pollution.
Some people think that "it is only the river that is polluted, and it has little to do with themselves", so "it is not about themselves, hang high". In fact, river pollution ultimately threatens human health. Taking industrial wastewater as an example, industrial wastewater often contains some toxic heavy metal elements, which are discharged into rivers and directly damage human organs if they are drunk. At the same time, according to science and technology daily, if the river containing heavy metal elements is used to water crops or feed livestock, then these heavy metal elements will circulate in the food chain, and finally gather at the end of the food chain, that is, in the human body, endangering human health. Moreover, the damage of toxic heavy metal elements to human organs is often irreversible, and once it enters the human body, it is difficult to be completely discharged.
Agricultural production pollutes rivers, and nutrients can also be the culprit
In order to resist the infestation of pests on crops, some pesticides are often used in agricultural production, but the residual pesticides will adhere to the soil, and then enter the river with rainwater, and if there are more pesticides entering the river, it will pollute the river. In addition, the growth of crops requires nitrogen, phosphorus and other nutrients, so in agricultural production will often use some fertilizers rich in these nutrients. Ma Jun, director of the Beijing Public and Environmental Research Center, said in an interview with Life Times that nitrogen, phosphorus and other substances are not toxic in themselves, but if these substances are discharged into the river in large quantities, the river water quality will be eutrophicated, which will lead to the proliferation of cyanobacteria and destroy the river ecosystem.
The harm of domestic sewage cannot be underestimated, and it is everyone's responsibility to protect the river
Domestic sewage mainly includes toilet flushing water, kitchen drainage, washing drainage, bath drainage, etc. According to China Environment News, these sewage generally contain certain chemical elements, so if it is discharged directly into the river, it will destroy the original ecosystem of the river. At the same time, domestic sewage also contains nitrogen, phosphorus and other substances, when these substances accumulate to a certain extent, it will also make the river water quality eutrophicating.
Therefore, in order to solve the problem of river pollution, it is not only necessary for the government to increase supervision and supervision, water plants to improve water purification technology, but also to correctly deal with pollutants in daily production and life, and consciously protect the river environment.
(Original title: Central Ecological and Environmental Protection Inspector Many Places Mother River Is Seriously Polluted)
Source: Beijing Evening New Visual Synthesis Xinhua News Agency, People's Daily News Agency