Forest fires: forest and grassland fires by natural processes occur due to lightning, the friction between the dry vegetation such as grass, bamboo. The fires often spread wide, more dust and gas emissions.Dust storm caused by strong wind and rain storms, soil erosion, soil and desert wind blew up into dust. The sea water evaporates and with ocean waves tossing salt dust carried foam spread into the air.The decomposition, rotten corpse, natural plants also emit many gases, chemical reactions between the natural gas formation of sulfide gas, nitrite salts, etc. The type of dust, gases are causing air pollution.
đang được dịch, vui lòng đợi..