[Lead emission amount from coal combustion and its environment effect in Xi'an City].
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.
Luo
Kunli
K
Institute of Geographical Sciences and Natural Resource, Chinese Academy of Sciences, Beijing 100101.
Wang
Douhu
D
Tan
Jianan
J
Wang
Lizheng
L
Feng
Fujian
F
Li
Ribang
R
D000393:Air Pollutants / Q000032:analysis*; D002681:China; D003031:Coal / Q000032:analysis*; D004781:Environmental Exposure; D006361:Heating; D007854:Lead / Q000032:analysis*; D018605:Spontaneous Combustion
D000393:Air Pollutants; D003031:Coal; D007854:Lead