Can fishermen who are dead from cement pollution eat it?

First of all, environmental pollution has a very negative impact on the growth, development and reproduction of organisms. When the pollution is serious, the morphological characteristics and survival quantity of organisms will change obviously. The harm of environmental pollution to organisms is described from four aspects: acid rain, harmful chemicals, heavy metals and water eutrophication. 1. Harm of acid rain to living things Acid rain acidifies soil and rivers, and flows into lakes through rivers, resulting in acidification of lakes. After acidification, the lake not only killed the plants growing in and around the lake, but also threatened the survival of fish, shrimp and shellfish in the lake, thus destroying the food chain in the lake and eventually turning the lake into a "dead lake". Acid rain also directly harms the leaves and buds of terrestrial plants and kills crops and trees. 2. Harm of harmful chemicals to organisms Pesticide is a common harmful chemical. When people use pesticides to kill bacteria and pests, it will also cause environmental pollution and harm to many kinds of creatures, including humans. Many pesticides are compounds that are not easily decomposed. After being absorbed by organisms, it will accumulate in organisms, resulting in the content of such harmful substances in organisms far exceeding the external environment. This phenomenon is called bioaccumulation. Biological enrichment is strengthened with the extension of food chain. 3. Harm of Heavy Metals to Organisms Some heavy metals such as manganese, copper and zinc are essential trace elements for biological activities, but most heavy metals such as mercury and lead are toxic to biological activities. Heavy metals such as mercury and lead in the ecological environment can also be enriched in a large number of organisms through biological accumulation, thus causing serious harm. 4. Effects of mercury on life activities of Daphnia. Mercury in nature can be transformed into methylmercury with greater toxicity through the action of microorganisms in water. In the seawater polluted by methylmercury, algae plants change color and a large number of marine fish die. 5. Eutrophication is harmful to living things. Eutrophication leads to a large number of deaths of fish and other aquatic organisms. Eutrophication of ponds and lakes not only affects aquaculture, but also makes water contain carcinogens such as nitrite, which seriously affects the drinking water safety of people and livestock. 2. Environment and human health With the increasingly serious environmental pollution, many people breathe polluted air, drink polluted water and eat agricultural products grown from polluted soil all day, and the noise echoes in their ears ... Environmental pollution seriously threatens human health. Air pollution and human health pollutants mainly enter the human body through the respiratory tract, and are directly transported to the whole body by blood without detoxification of the liver. Therefore, the chemical pollution of the atmosphere is very harmful to human health. This kind of harm can be divided into three types: chronic poisoning, acute poisoning and carcinogenesis. 2. Water pollution and human health After rivers, lakes and other water bodies are polluted, it will cause serious harm to human health, mainly in the following three aspects. First of all, drinking the organic matter in polluted water and edible sewage will make people poisoned and even die. Second, the water polluted by human and animal feces and domestic garbage can cause infectious diseases such as viral hepatitis and bacillary dysentery, as well as parasitic diseases such as schistosomiasis. Thirdly, some carcinogenic chemicals, such As arsenic (As), chromium (Cr) and aniline, can accumulate in suspended solids, sediments and aquatic organisms after polluting water bodies. Drinking such sewage for a long time is easy to induce cancer. 3. Solid waste pollution and human health Solid waste often contains a variety of substances harmful to human health. If it is not used in time and piled up for a long time, it will pollute the ecological environment and cause harm to human health. 4. Noise pollution and human health noise do harm to people in many ways: first, it damages hearing. Second, interfere with sleep. Third, induce a variety of diseases. Therefore, we should take various measures to prevent and control environmental pollution so that all living things, including human beings, can live in a beautiful ecological environment. 3. Impact of environmental pollution on organisms Environmental pollution and "three effects" environmental pollution often have carcinogenic, mutagenic and teratogenic effects on humans or mammals, collectively referred to as "three effects". The harm of "three effects" usually takes a long time to appear, and some harm will even affect future generations. 1. Carcinogenesis 2. Mutation 3. Teratogenesis of deformed newborns. To sum up, the harm of environmental pollution is enormous, involving a wide range of hazards, strong invasiveness, and difficult to control. We must do a good job in every link of environmental pollution prevention and control, adhere to the principle of putting prevention first and combining prevention and control, and truly coordinate environmental protection and governance with sustainable economic and social development. US Tmall WeChat reminds: Remember to protect yourself when traveling in foggy days.