Sewage refers to the water containing pollutants discharged from buildings, urban blocks, factories, mines and other activities. The pollutants that may be contained in sewage mainly include organic matter, heavy metals and bacteria. These pollutants may have adverse effects on health after entering the human body. Organic matter: including a mixture of various organisms and inorganic substances, such as benzene, toluene, xylene, etc. Such substances may cause cancer and damage the immune system, nervous system and reproductive system. Heavy metals: such as lead, mercury and cadmium. These substances also have potential carcinogenic and neurotoxic effects, and may remain in the body at the same time, damaging organs such as liver and kidney. Bacteria: such as Escherichia coli and Salmonella. These bacteria can cause different degrees of food poisoning and intestinal infection. In a word, pollutants in sewage are very harmful to human health, and once they enter the human body, they may cause irreversible damage.
What if the sewage discharged by enterprises exceeds the standard? If the sewage discharged by enterprises exceeds the national standard, it may lead to environmental pollution and human health being threatened. Relevant departments will conduct inspection and monitoring. If it is found that the enterprise's emissions exceed the standard, it will generally issue a rectification notice first, requiring rectification within a time limit. If the enterprise still violates the law, it will face penalties such as fines, suspension of production for rectification or revocation of licenses.
Sewage may contain a variety of pollutants, which are harmful to human health in many ways. In order to protect people's health, we need to strengthen sewage treatment and supervise and punish sewage discharge according to law. At the same time, we should also strengthen public publicity and education and raise environmental awareness.
Legal basis:
Article 23 of the Law of People's Republic of China (PRC) on the Prevention and Control of Water Pollution: No unit or individual may directly or indirectly discharge pollutants into water bodies, which will damage the health of water ecosystems and destroy water resources.