Pollutants
mean different substances contained in the soil, the water, and in the air, was higher than normal. Do to affect the survival of humans, animals and plants. If classified pollutants out according to the status will be 3 groups
1.The pollutants in the gas state, such as carbon monoxide, carbon dioxide, sulfur, nitrogen, and กำมะ elemental chlorine, etc.
2.Pollutants in the liquid state, such as dust, acid of various elemental sulfur nitrogen dissolved in the water, or dissolved in groundwater Treatment of waste water in homes. And from the various industrialMake some kind of aquatic plants and animals die and extinct
.3 pollutants in solid state, such as soot, smoke, some synthetic compounds used decay difficult, such as plastic bags, foam and fiber. Etc. the rubbish mixed in water and in soil is general
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