1. Li H Z, Wang M L. Some preliminary studies of acid precipitation in China (in Chinese). Acta Meteorol Sin, 1984, 42: 332–339
2. Wang W X, Wang T. On the origins and trends of acid precipitation in China. Water Air Soil Pollution, 1995, 85: 2295
3. Ding G A, Xu X B, Fang X M, et al. The current status and trends of acid rain in China (in Chinese). Chinese Sci Bull, 1997, 42: 169–173
4. Ding G A, Xu X B, Wang S F, et al. Database from the acid rain network of China Meteorological Administration and its preliminary analysis (in Chinese). J Appl Meteorol Sci, 2004, 15(Suppl): 85–94
5. Wang W X, Xu P J. Research progress in precipitation chemistry in China (in Chinese). Prog Chem, 2009, 21: 266–281