... reservedURBAN AIR POLLUTION IN CHINA: Current Status, Characteristics, and ProgressKebin He, Hong Huo, and Qiang ZhangDepartment of Environmental Science and Engineering, Tsinghua University,Beijing 100084, ... Xiamen, and Shanghai), the north coastal area around Qingdao in Shandong Province, and the northeast area around Tumen in Jilin Province werealso identified as acid rain areas. Now, acid rain is mainly ... would be ineffective. Vehicle fuel quality in China has improved in the past decade. Low octane gasoline (No. 70) is beingphased out, and 90, 93, 95 and higher octane gasoline is increasing .In March1997,the...