土壤污染及防治英語-閱讀頁
2025-01-24 00:55本頁面
【正文】 rity fertilizer capacity decline and deterioration of the biological properties, and increase the cost of agricultural production, the impactthe crop yield and quality 4 heavy use of pesticides Crops from the soil to absorb pesticides accumulated in plant roots, stems, leaves, fruits and seeds, and endanger human and livestock health through food, feed 5 solid waste ? Industrial waste and municipal waste soil solid contaminants. For example, a wide range of all kinds of trash generated management, recycling poor, the large amount of waste was left on the land caused by land pollution. 6 Heavy metal elements ? Heavy metal pollutants into the soil to the presence of soluble and insoluble particles, such as fluorine, mercury, cadmium, Zn, Pb, Ni such as arsenic, chromium in the soil that can be absorbed by plants and enriched. 7 Radioactive substances contaminated soil ? Soil radiation contamination source of uranium and thorium mining, uranium enrichment, nuclear waste disposal, nuclear weapons explosions, nuclear experiments, coalfired power plants, phosphate ore mining processing. Easily adsorbed by the soil, the residence time is longer. Third. Hazards and the status quo of the land Hazard: pollution worsens already strained more shortage of arable land resources pollution tremendous threat to people39。 Fourth, the prevention of soil pollution pollution prevention and control, including two aspects: First, the anti, is to take measures to prevent soil pollution。 contaminated soil, it is necessary to take all effective measures to remove the contaminants in the soil,improve the soil, preventing the migration and transformation of pollutants in the soil.
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