在结合中国26个主要产煤省、市、自治区的煤砷含量的基础上,研究探讨了全国煤砷权重。研究发现,煤砷含量较高的省份为广西和福建省,曾发生燃煤砷中毒的贵州省砷含量并不高。根据现有的相关资料,选择不同行业的砷排放因子进行砷排放研究,发现中国砷排放源主要为炼焦、发电非金属矿物制品以及黑色金属等产业。1997年中国砷排放量为442.31t,每燃烧100万t煤相当于向大气释放0.32t砷。自1960年以来,中国砷排放量以每年8.4%的速度增长,燃煤砷排放问题日益严重。
The arsenic content weighted by the coal productions of 26 provinces was discussed. The level of arsenic in China is higher in Guangxi and Fujian Province, but lower in Guizhou Province which have occurred arsenism. The arsenic emissions were studied based on the different emission factors from the correlated data. In China, the mainly emission source is coking plant, power plant, non-metallicmineral product and ferrous metal. In 1997, the emission of arsenic in coal is 442.31 t, namely, 1 million coal burntwill release 0. 32 t arsenic. Since 1960, the emission of Chinese coals grows by 8.4%. The problem of arsenic emission is more and more serious.