Study On Acid Rain Formation Reason And Control Measure Of Yueqing City

Acid rain is one of the most concerned regional even global environmental problems. Acid rain in Zhejiang province is more and more serious in recent years. Yueqing city is a typical Acid rain area in Zhejiang Province. In order to control acid rain effectively, the rain components, acid forming reason and main acid caused ions were investigated and monitored at Yueqing city in this thesis. Following conclusion were deduced based on summarization of literatures and rain monitoring result.1. Yueqing city has been a heavy acid rain polluted area, where almost every rain is acid rain.2. SO₄^2- and NO₃^- is main cause of the acid rain in Yueqing city, which was SO₄^2- dominant acid rain, but it is changing to NO₃^- dominant acid rain.3. The statistics Result showed that rain pH was not affected by rain quatity. But the frequency of Strong acid rain (pH<4.5) of big rainfall is much less than that of moderate rain and drizzle.4. The SO₂ and NO₂ from Wenzhou Power plant was main acid-pre-causing substance of Yueqing Acid Rain. Wenzhou Power plant is the main Acid Rain pollutant souce of Yueqing.,5. This thesis suggested that desulfuration and denitration of Wenzhou Power plant is one of the most important measure to control acid rain of Yueqing city.These results supplied a good reference in environmental management and policy estblishment for acid rain control in Yueqing city as well as other similar area.