1. Noise pollution
It is the sound pollution that approaches or exceeds the level of auditory system software. It can damage and change the normal physiological condition of human body, and even cause symptoms. The key comes from the operation of various types of machinery and equipment in industrial production, transportation and other manufacturing industries. Metropolitan noise has long been a global environmental problem of metropolitan geographical environment. The key sources are: industrial production noise, traffic noise, engineering construction noise and social and economic development noise.
2. Soil layer pollution
It is the deterioration of soil layer caused by human activities when pollutants enter the soil layer and accumulate a certain level. The key factors are industrial production, domestic sewage treatment and solid waste, pesticides and organic fertilizers, and air base settlement.
3. Pesticide pollution
介绍农药及其融解化学物质对土壤层、水体和空气的污染。关键指有机氯、甲基对硫磷和分析化学氮农药污染。情况严重时要导致人和动物与绿色植物的急性或中毒了的主要表现。是农药及其在地形地貌中的融解化学物质，污染空气、水体和土壤层，损坏绿色生态管理体系，导致人和动物与绿色植物急性或中毒了的主要表现的情况。农药也分分析化学农药和无机化合物农药。污染关键由有机氯农药、甲基对硫磷农药和分析化学氮农药等造成 。造成 农药污染的原因很多，比如长久性运用一些严禁应用的危险化学品高残留农药，或在粮食作物上滥施乱用等
This paper introduces the pollution of soil layer, water body and air caused by pesticides and their melting chemicals. The key points are organochlorine, methyl parathion and analytical chemical nitrogen pesticide pollution. When the situation is serious, it will lead to acute or poisoning of human and animals and green plants. It is the main manifestation of pesticide and its melting chemical substances in topography, polluting the air, water and soil layer, damaging the green ecological management system, leading to acute or poisoning of people, animals and green plants. Pesticides are also divided into analytical chemical pesticides and inorganic compound pesticides. The pollution is mainly caused by organochlorine pesticides, methyl parathion pesticides and analytical chemical nitrogen pesticides. There are many reasons for pesticide pollution, such as the long-term use of some prohibited hazardous chemicals, high residue pesticides, or indiscriminate use on food crops
4. The excessive use of organic fertilizer leads to the pollution of water, soil layer and air. If the nitrogen compounds, which are not immediately applied by green plants, exist in the way of NO3-N which can not be adsorbed by soil colloids, it will transfer the soil moisture content into the underground stem accumulation layer and cause pollution. It can lead to eutrophication of water quality of rivers, lakes and inland seas, pollution of soil layer and deterioration of physical properties, and increase of harmful components in food industry, pellet feed and drinking water. In order to prevent the pollution of geographical environment, the control and management scheme of the organic chemical pesticides used were carried out.
以上就是大伙儿为大家详细说明的废气处理所针对的废气污染的关键来自，废气在生活起居中是常常能够 见到的，事实上废气关键是由于人类活动和自然整个过程导致了污染物排进入清理空气中，造成空气污染，而人类活动，十分是大家的生产加工活动也是造成 空气污染的关键原因。像现如今那般一个社会发展社会经济发展的阶段，避免 不了的就是地理环境污染，每天大家都能感受到一些身边的污染情况。
The above is the key point of waste gas pollution for waste gas treatment. Waste gas is often seen in daily life. In fact, the key to waste gas is that human activities and the whole process of nature lead to pollutants discharged into the clean air, causing air pollution, and human activities, very much everyone's production and processing activities, also cause air pollution Key causes of air pollution. At the stage of social development and socio-economic development, it is inevitable to avoid the geographical environment pollution. Every day, we can feel the pollution around us.
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