The present situation of acid rain pollution in Nanchang city is analyzed based on the 2002-2006 precipitation observation data of Nanchang city and the causes of acid rain are revealed.The research shows that the acid rain in Nanchang is characterized by high in acidity and frequency.The PH value of rain has been in a descending trend in the recent years
and the acid rain is mainly caused by sulphuric pollution.In addition
4 factors are analyzed
including rainfall
constitute of ions
airborne particulate matter and terrain around the city on the acid rain in Nanchang.