2017年9月6日星期三

Urban waste has do harm to the whole human beings life

In China's 668 large and medium cities, about 2/3 are into the plight of garbage siege. The urban garbage in China, the annual output of nearly 1.5 tons, most of these cities are garbage dumps. It not only affects the urban landscape, but also pollutes the air, water and soil, which is vital to people's life. These urban waste has the following six hazards.

(1) a large amount of harmful gases, such as ammonia and sulfide, were released from the garbage dumps, which seriously polluted the atmosphere and the living environment of the city.


(2) seriously polluted water bodies. Garbage is not only a large number of pathogenic microorganism, acid and alkaline organic pollutants will be generated in the process of piling up corruption, and will be dissolved out of the heavy metal in the waste, the formation of organic substances, heavy metals and pathogenic microorganisms as one of the three sources of pollution, serious pollution of the rain leachate will cause surface water and groundwater.

(3) biological pollution. There are a lot of pathogenic microorganisms in the garbage, garbage is often the breeding grounds of mosquitoes, flies, cockroaches and mice, which is bound to endanger the health of the general public.

(4) encroachment of land. According to preliminary investigation, in 2003 the country's 668 cities in the country has been surrounded by garbage 2/3 waste landfill covers an area of 800 thousand acres.
(5) garbage explosion accidents occur continuously. With the content of organic matter in the city and improve the open distributed stacked into concentrated storage, using only simple coverage caused by producing methane anaerobic environment, flammable and explosive.

(6) more than 60% of urban domestic waste is mainly produced by the residents of the area after the organic waste generated by the two pollution, that is, the growing number of organic waste in the city is the source of increasing urban waste.

So, we should take actions to protect our environment, and about the plastic pollution, we can recycle it, such as polystyrene recycling, which not only can reuse the waste resources, and also can protect our environment. And about other pollution, we should think other good ways to deal with it.

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