Đề tài Axit rains

AXIT RAINS Nguyễn Viết Thoàn (HEADER )Nguyễn Quốc KhánhHồ Phan Thị Phương (PRENSENTER)GROUP 4Trương Nhơn PhúTrần Thị Thu VânTrần Anh KhoaHoàng Linh SaNguyễn Thị Mỷ HàCONTENTS*Impacts41Causes2The generation of acid rain3Solutions5Definition1. Definitions Acid rain is rain phenomenon caused by a gas in water to formacid rain different. In nature,the rain is mainly because of the acidrain has dissolved CO2 (from the breath ofanimals and have a little Cl-(from seawater) and pH below 5.2. Causes The cause of acid rain phenomenon is the growing power of sulfur and nitrogen oxides in the atmosphere by human activities cause. The power plants using fossil fuels for power generation has also released into the atmosphere large amounts of NOx, SO2 and by the transport active SO2 can also be emitted from volcanic activity. When active volcanoes usually emit H2S and SO2 atmosphere 3. The generation of acid rain4. Impacts Acid rain affected directly or indirectly to the lakes and the aquatic environment through the pH pHThe expression pH < 6,0The lower organisms of the food chain died (as fleeting ...) this is an important source of fish food. pH < 5,5Fish can not breed. The fry are very hard to survive. Big fish are deformities due to malnutrition pH < 5,0Fish populations diepH < 4,0Emergence of new organisms other organisms initially The leaves fall off and the process of photosynthesis is affected seriously The effects of acid rain on plants and soil Affect the atmosphereThe acid fog affects the ability to spread sunlight. Affect the structures and materials The acid rain falling buildings and the statue will corrode them. damage the fabric, books and valuable antiques .. Effects on people Acid rain can affect the nervous system and cause neurological disease in humans The direct effects of pollution due to the acid gases including respiratory diseases such as asthma, whooping cough and other symptoms such as headaches, sore eyes, sore throat ... 5. Solutions By all means reduce the energy consumption of petroleum and coal, trying to apply nuclear energy, solar energy, wind water energy and wind to reduce the amount of NO2, SO2, CO2 emissions into the air THE END * !