Nowaday , water is the natural source which is necessary for people . We need to use water every day , you can’t live without water . Unfortunately , water pollution cover the most of the world . In each 5 million people in the world that have 2 million people who haven’t the clear water to use .
Water pollution is the contamination of water bodies Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
Water pollution affects plants and organisms living in these bodies of water. In almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.
It have a lot of causes that mke the water more and more pollution . Towns and municipalities are also major sources of water pollution. In many public water systems, pollution exceeds safe levels. One reason for this is that much groundwater has been contaminated by wastes pumped underground for disposal or by seepage from surface water. When contamination reaches underground water tables, it is difficult to correct and spreads over wide areas. In addition, many U.S. communities discharge untreated or only partially treated sewage into the waterways, threatening the health of their own and neighboring populations.
Along with domestic wastes, sewage carries industrial contaminants and a growing tonnage of paper and plastic refuse (see solid waste). Although thorough sewage treatment would destroy most disease-causing bacteria, the problem of the spread of viruses and viral illness remains. Additionally, most sewage treatment does not remove phosphorus compounds, contributed principally by detergents, which cause eutrophication of lakes and ponds. Excreted drugs and household chemicals also are not removed by present municipal treatment facilites, and can be recycled into the drinking water supply.
Rain drainage is another major polluting agent because it carries such substances as highway debris (including oil and chemicals from automobile exhausts), sediments from highway and building construction, and acids and radioactive wastes from mining operations into freshwater systems as well as into the ocean. Also transported by rain runoff and by irrigation return-flow are animal wastes from farms and feedlots, a widespread source of pollutants impairing rivers and streams, groundwater, and even some coastal waters. Antibiotics, hormones, and other chemicals used to raise livestock are components of such animal wastes. Pesticide and fertilizer residues from farms also contribute to water pollution via rain drainage
The water pollution have many harm for the citizen’s healthy . General consequences of water pollution is the incidence of acute and chronic diseases related to water pollution, such as conjunctivitis, diarrhea, cancer ... growing. People living around polluted areas with many more suspected disease caused by dirty water used in all activities. In addition, water pollution also causes significant losses for the business industry, aquaculture households. Second , people who use the water pollution day after day usually have kidney disease, neurology, infectious Ammonium, Nitrate, Nitrite causing blue disease, anemia, can cause cancer. Tert-butyl methyl ether (MTBE) is a common additive in oil extraction have the potential to cause cancer is very high. Infection Natri (Na) causes high blood pressure, cardiovascular disease, sulfur causes gastrointestinal diseases, Potassium, Cadmium causes degenerative diseases of the spine, back pain. Organic compounds, pesticides, insecticides, herbicides, growth stimulants, food preservatives, phosphorus ... meke people ‘s poisoning hepatitis, vomiting.
In finally , the government need to have lots of strategy to protect the clean water and handling dirty water that make the healthy of the citizen become better and reduce the sick people ratio because the water pollution. Long-term strategy that can provide safe drinking water treated and improved sanitation systems. Short-term strategy is to use the method of water treatment at household simple as water filters, heat to boil water. In addition, information campaigns to raise awareness, community awareness of water resource protection, especially need to adopt more stringent regulations for pollution control problems, forcing all businesses business - from small to large - to respon the minimum standards ofdirty water in the production business, avoid environmental pollution. In conclusion , clean water and fresh air are essential for a healthy life.
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