title: [Lead emission amount from coal combustion and its environment effect in Xi'an City].
abstract: For study the lead emission amount from coal combustion and its environment effect, the lead content of coal, ash and cinder of power station and coal-fired boiler, the lead content of dusts in the period of heating time and the non-heating time in Xi'an City were studied in this paper. The results show that amount of lead emission from 1 ton coal combustion, which lead content in coal was 30 g, was 20 g in atmosphere. The rate of lead emission of coal combustion was about 66%. About 10 million tons of coal was straight burning every year in Xi'an City and suburb, those coal mainly come from Permo-Carboniferous coal in Weibei coal mine, Shaanxi, their average lead content was 30 mg/kg. So the total lead emission from coal combustion to atmosphere was about 200 t annually in Xi'an City.
authors: Institute of Geographical Sciences and Natural Resource, Chinese Academy of Sciences, Beijing 100101.
authors: Kunli
authors: K
authors: Luo
authors: Douhu
authors: D
authors: Wang
authors: Jianan
authors: J
authors: Tan
authors: Lizheng
authors: L
authors: Wang
authors: Fujian
authors: F
authors: Feng
authors: Ribang
authors: R
authors: Li
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002681:China; D003031:Coal / Q000032:analysis*; D004781:Environmental Exposure; D006361:Heating; D007854:Lead / Q000032:analysis*; D018605:Spontaneous Combustion
chemical_list: D000393:Air Pollutants; D003031:Coal; D007854:Lead