Quench into the filth of the rivers Will also " flow " It is human to go back

Quench into the filth of the rivers Will also " flow " It is human to go back
Everybody cares about good Nie's quiet question related to the fact that healthy of a piece of gold of environmental pollution of environmental academy of sciences of China and healthy innovative base, and threaten to attract people's attention especially in common people's healthy big and small incident. Influence in order to let readers understand the cause and effect of a lot of hot questions and far-reaching in an all-round way, we put out the intersection of " understand deeply " and column, invite expert understand from dark overall angle on the question that some people care about. Today, we talk about from water that everybody can not leave. Water is a source of human existence. It was existing in history and at present by way of sacrificing the environment as the production of the cost, make industrial sewage of the poisonous harmful substance of thing and heavy metal,etc. of containing machine, sanitary sewage,etc. drain into rivers lake and offshore sea area in a large amount, and permeate through the underground. Polluting the security of threatening resident's drinking water and aquatic products directly seriously of the rivers,lakes and seas. 1/4 of the residents of pollution of waterhead do not have clean drinking water Scan our country's great water contamination accident report, it is easy to find almost each contamination accident will influence the supply of resident's drinking water. The person who suffers influences is at least thousands of people, hundreds of thousands people at most. The challenge that and the drinking water supplies is not merely limited to water contamination accident, a report of development and reform committee claims the environment of our country is seriously polluted, the living environment that the people face is more abominable, 1/4 of the residents do not have clean drinking water. The investigation reveals, there are 2246 pieces of drinking water source ground in all in 661 cities of our country, among them the water yield of the sources of water of river and lake storehouse accounts for 62.4%, accounts for 75.6% which supply water of quantity. If regard three kinds of water environments of surface water as the qualified standard is paid and counted, Hunan and river getting up to standard and most low source of water of Anhui, 60.28% -46.7% only; Lake storehouse getting up to standard source of water a low one Anhui Province and Jiangsu Province most, the latter only 3.07%; And groundwater the intersection of source of water and getting up to standard most low Shanxi, nearly half the source of water water quality up to standard of. The environmental protection department revealed to the water quality monitoring results of 206 drinking water and source of water in 2005, the source of water of our country receives the pollution of 132 kinds of organic matter, 103 kinds among them belong to domestic pollutant controlling abroad preferably. The data announced in environmental protection department still reveal, 113 395 pieces of centralized type ground of drinking water source which key cities of environmental protection monitor of the whole country in 2010, water amount up to standard accounts for and fetches water 80% of the total amount are less than. Nearly 24% of water yield taken out from the source of water can not reach three kinds of water standards. Investigations are thought, it is of our country to be that source of water pollute in drinking water reasons main to be industry and sanitary sewage last surface water water body and source of water ground perimeter directly because agricultural production and live there aren't activity Pollution of waterhead. Because the water environment is polluted, the drinking water source water quality can't be up to standard of, force a lot of cities to look for and change the new ground of source of water. The bridge waterworks of head of district of Xuhui of Shanghai succeeds in using the source of water from sand reservoir of green grass instead in June of this year, enable the typical water quality type lack ink city ' Mean the abundant but clean source of water in ink quantity insufficiently) Shanghai has breathed a sigh of relief temporarily. In addition, the long-term pollution of the surface water can be permeated through the underground, influence the water quality of the groundwater. At present, 90% groundwater suffers pollution at various degrees in the whole country, 60% among them are seriously polluted. In the rural area of our country, the pollution of the shallow layer of groundwater not merely comes from industrial pollution, still with the using, having something to do in a large amount of chemical fertilizer, pesticide, and a considerable amount of residents use hands to press the well and collect the shallow groundwater in storey to drink directly, so they are the most direct victims of underground water pollution. Sewage irrigate the fields the harmful thing enters agricultural products to survive in the water body polluted for a long time, through the transmission and collecting function richly of the food chain, pollutant such as heavy metal and organic matter are accumulated in the aquatic organism. People will take in certain poisonous harmful substance too while enjoying aquatic products delicious and abundant nutrition, including organic chemicals and mercury, lead, cadmium,etc. heavy metal such as the whole Fluorine hard alkane sulfonic acid, Ren's base phenol and hard base phenol. These harmful things at present one still can't produce obvious danger to the health horizontally, but if the filth is discharged into water, accumulating through the food chain and rich collection continuously, will exert a more serious and more far-reaching influence on ecosystem and human health. In addition, water which uses pollution is irrigated, agricultural products produced have the accumulating of pollutant. The investigation reveals, there is more heavy metal or other pollutant that some seriously polluted regional residents took in through the meal, have already exceeded the absorption of WHO to limit. It initiates the pollution ocean of nuclear leakage that the incident reviews the rivers,lakes and seas and is injured the earthquake very much In March of this year, the heavy earthquake takes place and initiate tsunami in Japan, the double blow causes the serious leakage accident happen in Fukushima nuclear power station, the radioactive material flows into the ocean. The radioactive material can cause marine animal's death directly, and make the genetic mutation takes place or pollute the food chain of the marine organism to the offspring. Ovum and the young of the marine animal have higher sensitivity to radiation, radiation exposes DNA that will change them, influence its breeding and fecundity. In all marine animals, it is mollusks such as jellyfish, sea anemone, sea worm,etc. that it is easiest to be damage, their speed of absorbing radiation exceeds shell animal. Once people eat the seafood polluted, will damage the health. The Bohai Sea oil field overflow oil destroy marine will it be June this year such as ecology, CNOOC an oil field in Bohai Sea Gulf the oil spill accident takes place. This oil field is oil gas field on the sea the most that builds up at home. Overflow oil cover in surrounding waters mainly, most far coverage in the northwest of 19-3 oil fields in Peng Lai about 60 kilometers. 19-3 oil field overflow oil to be most large to distribute 158 of area odd-numbered day, make around the intersection of sea area and sq. km. of a kind of water quality sea waters drop to bad 4 kinds already. In destroying the ecological problem in the ocean, it is especially abominable that the crude oil leaks the influence caused. Marine oil pollution causes large quantities of death such as sea bird, gull, walrus, whale of marine organism on one hand, on the other hand cause the photosynthesis of marine organism to be influenced. Benzene, toluene,etc. poisonous compound contained in the crude oil enter the food chain, not only influence living beings such as the alga, fish,etc. also will influence human health. The blowdown of pharmaceutical factory of Harbin is changed in green June of this year by the river, Harbin Pharmaceutical Group pharmacy general factory located in Harbin urban area overhauls because of some sewage treatment facilities, its sewage produced is drained into Song Hua River directly, lead to the fact the river becomes blackish green, a large amount of waste residue is poured out by the river directly. Measure, show from the intersection of blowdown and the intersection of mouth and water sample that fetch by in environment protecting mode department, the intersection of general factory and the intersection of blowdown and the intersection of mouth and water body, medicine of Kazakhstan, colour 892, it is the country that stipulates nearly 15 times of the extreme 60; Ammonia nitrogen is 85.075, it is the country that stipulates more than two times of the extreme 35. Discarding medicines contains toxic materials such as benzene compound,etc. ,It will cause chronic poisoning too that it can cause people's acute poisoning that. Mould and melt pharmaceuticals and endanger lake environment and energy project institute's scholar of Beijing University of Technology of Beijing park and issue and study and claim, 11 pieces of park lake water water sample in Beijing are moulded, taken pharmaceutical and polluted, 2 first sour ester (DEHP) of benzene of neighbor of pollutant among them With the intersection of neighbor and the intersection of benzene and 2 first sour 2 man esters ' Abbreviated as DBP) The density is relatively high. Our country " water environment quality criteria in the earth's surface " has corresponding regulations on the pollutant, some of these park exceed standard twice, some exceed standard 3 times. The reason of pollution is that the lake in the park changes the water once in a general year, flowability is bad, in addition, food gift box, plastic bag, beverage bottle,etc. which visitors abandoned. DEHP mould take pharmaceutical, belong to environmental hormone, will cause the intersection of people and sexual precosity, influence the intersection of reproduction and ability, to can produce danger too. (Zhu YongJi) Learn, protect the intersection of oneself and drinking water, might not watch safe the intersection of China Medical Promotion and healthy the intersection of drinking water and professional Li Fuxing, director of committee, clean in the face of pollution: The safe drinking water should guarantee crowds will not initiate urgent, chronic poisoning and potential long-term danger all the life. And the chemical polluter remains long time in water in water in recent years, it is difficult for the majority to be degraded, can produce and poison function on the human body directly. Then how could get healthy and safe drinking water, the expert proposes following the following principles. The drinking water must want the appearance, color of disinfectant, take a sniff at and the bad smell is that people judge water quality and primary and direct indicator of the acceptable intensity. Certainly, water with good sensory properties does not mean that is sure safely. In order to guarantee the drinking water is safe, it is a thing that must be done to sterilize. The present main disinfection way has chlorine, chlorine amine, ozone and ultraviolet rays that are sterilized etc.. The main by-product of disinfectant is acid, chlorine nitrile, bromate, formaldehyde and inferior chloric acid salt of chloroform, two chlorine second,etc.. So long as the disinfection by-product not above standard regulation in the drinking water, to the harm of health. The pH value, hardness want suitable pH value to show the sour alkalinity of water. PH value of the clean natural water should be neutral, it is about 7. PH value is that the importance when the water quality is purified controls the index, crossing low pH value will corrode metal pipeline and container, it is too high and apt to cause forming the dirt, influence the disinfection effect of the chlorination. The pH value standard of the drinking water of our country is 6.5- 8.5. The hardness of water is made up of calcium, magnesium dissolved in water, and convert to into milligram / liter of calcium carbonic acid as measurement unit. The hardness of the drinking water will form the dirt in the pot while passing high fever and boiled water, influence the mouthfeel; It is low and apt to corrode the pipeline that the hardness is crossed. The standard limit of hardness of drinking water of our country is 450 milligrams / liter. Heat up water the intersection of general knowledge and water seethe with excitement in a moment imprisoning fire boil, in order to kill microorganism, destroy toxin that itself has pathogen turn into. Turn on behind the faucet early morning, should discharge several minute water, put, boil, drink purify and clarify naturally in container, water. Open the pot to cover when boiling in water quickly, let the residual volatile organic matter in water be volatilized, and then cover the pot and cover boiling. Water had better be boiled and drunk now now, does not want the previous night and should pay attention to clearing up the scale regularly yet at the same time. Stature large to pollute serious the intersection of Beijing and the intersection of Chaoyang and the intersection of hospital and occupational disease and poison medical head of the department Hao FengTong marine product: The heavy metal is one of the marine water body and biological most dangerous pollutant, mainly discharge and loss of heavy metal pesticide from trade effluent, mine waste water, the heavy metal that the coal and petroleum release in burning and enters ocean through the transportation of the atmosphere. They can't be degraded, spread in the water body everywhere. A lot of people think that eat more fish to let people clever, but it is really that the more, the better to eat the fish? It is not like this. The marine fish because bodily form is relatively great, lie above the food chain, if is accumulating mercury in the organism of lower floor constantly, mercury content in the big fish's body will be higher, people eat the big fish, possible mercury poisoning any more. Marine expert propose, eat more the intersection of bodily form and little fish, change more taste, lower, lead to the fact, poison the dangerous chance to heighten because of being have partiality for with the fish of a kind. If some water areas are seriously polluted, must not catch, sell and eat the aquatic products of this area. (Zhu YongJi puts in order) Buy one fish, see two until three smell, four look through pure to cultivate fish to be too unsafe to monitor according to the environmental department De Zhang, researcher of Chinese Academy of Agricultural Sciences, national cities and towns have 100 million unprocessed to drain into the water body directly sewage at least every day. The section water quality of over half is polluted in seven major river systems in the whole country, 26% are five kinds and five kinds of inferior water in 7 great river systems. 7 are five kinds and five kinds of inferior water in 9 big lakes. 1/3 water body in the whole country is not suitable for fish's existence, 1/4 water body is not suitable for irrigating. Having received unprecedented pollution in the sea, rivers, lake, the aquatic biological pollution that abominable water quality causes, make us shocking. Natural aquatic products, make us hang back, are the fish that propagate artificially safe? The current situation is not optimistic. The person breeding fish should pursue the interests to maximize too. In the limited water body, feed the shoal of fish of ultra quantity, cause various fish diseases to happen constantly. Ultra quantity, ultra limit use the intersection of fish and medicine, violation, violated to use chemical medicines forbidden, abusing antibiotic,etc. makes the medicine in the aquatic products remain and exceed standard. " peacock's malachite poisonous fish " , " many treasure fish " The emergence of the incident, it is the outstanding behaviours of these questions. We have to eat the fish. For the food security, the government should ensure the safety of ecological environment, strengthen it to the administration polluting the river system; Production, food security supervision department should strengthen supervising, check; The law enforcement agency should attack illegal producer and seller sternly, and consumers should learn some and buy the method knack of the fish. Buy the fish and remember to choose the aquatic products, should go to the mega-store, market of farm produce to buy in four word pithy formulae, don't buy the pedlar's aquatic products in street, roadside. While buying the aquatic products, should pay attention to fresh degree of the products. At it buy by fish it remember watch, according to, hear, look through four word pithy formula. See it is suffused with that the fish move about and live, the figure is balanced. The dead fish depend on whether the scale is intact, the eyeball shape even and energetic has no dent. Fresh fish eyes should be limpid and bright, there will be no ones that will present because of bleeding and is suffused with red. Two elasticity which touch fish's body. The fresh moisture of fish is run off little, the elasticity of the fish is good naturally, feel hard and hard, flexible according to standing up, after it remove finger resume by shape at once too,it will leave according to compression. Three smell of hearing the fish. Unfresh fish, the offensive smell is relatively heavy, already gone badding will have stench flavor. Four gills which turn over the fish. Fish's gill is the respiratory apparatus of the fish, it shows that high in blood that colors of the gill are scarlet, a scarlet one of color is the fresh fish. The blood did not recycle after the fish died, the more obscure the color of fish's gill is, expressed the time of death long. Extend and read Of our country a environmental quality state of surface water ' Rivers lake) China's environmental state communique will reveal, the water pollution of the earth's surface of our country is relatively heavy to release 2010 in environmental protection department. It is the slight pollution that seven major river systems such as the Changjiang River, the Yellow River, Pearl River, Song Hua River, Huaihe River, Haihe River and Liaohe River are overall. The overall water quality of the Changjiang River, the Pearl River is good, Song Hua River, Huaihe River are the slight pollution, the Yellow River, Liaohe River are the intermediate pollution, Haihe River is the serious pollution. Lake (reservoir) The eutrophication question is outstanding, in 26 lakes (reservoir) that are monitored China, accounting for 42.3% of eutrophication state. Some the intersection of surface water and to the intersection of resident and the intersection of influence and April 2, 2010 of drinking water contamination accident, the intersection of Dujiang Weir Chongyi of Sichuan and town topples over because of the rubbish, cause the river of pines to pollute, cause main some location water pressure of urban area to drop. On July 3, 2010, the water leakage accident of ketoacid takes place to the wet law factory of copper mine of Purple Mountain of mining industry of Zijin of Fujian, because heavy metal pollution causes locals nobody dares to use the running water. On October 18, 2010, the running water in the yellow mud town of Qianshan county of Anhui is polluted by chemicals, the pollutant is mainly toluene, Xylene, 40,000 people cut off the water for 12 days. On June 4, 2011, the trough tank wagon of a vehicle of phenol causes phenol to let out because of the traffic accident, pollute river some water bodies in Hangzhou Xin'an of Zhejiang, it is influenced that the residents of Hangzhou area 550,000 drink the water. On July 8, 2011, a village of drinking water in Yiwu of Zhejiang is polluted by industrial ammonia water leaked, more than 1300 resident drinking water is influenced, it is altogether for 4 days.

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