| 中国非燃煤大气汞排放量估算 |
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| 中文关键词 汞 排放量 排放因子 中国 |
| 英文关键词 mercury emissions emission factors China |
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| 中文摘要 |
| 本研究根据各种非燃煤大气汞排放源的活动水平和排放因子，估算了1995～2003年中国分省非燃煤大气汞的排放量。2003年中国非燃煤大气汞排放量为393t，比燃煤汞排放多137t。在非燃煤大气汞排放中，84%来自有色金属冶炼，其中锌冶炼、铅冶炼、铜冶炼和黄金冶炼分别占总排放的51%、18%、4%和11%。Hg0、Hg2+和HgP在中国非燃煤大气汞排放中所占比例分别为77%、18%和5%。中国非燃煤汞排放在各地区间有较大差异，排放量超过30t?a-1的省区包括湖南、河南和云南，排放强度超过1t?km-2的省区包括上海、湖南、河南、辽宁和广东，这些地区的主要汞排放源为有色金属冶炼和生活垃圾焚烧。1995～2003年中国非燃煤大气汞排放的年均增长率为9%，其中生活垃圾焚烧排放的年均增长率最高，达到42%。 |
| 英文摘要 |
| Based on the activity level and emission factors, this paper estimated the provincial mercury emissions from non-coal sources during the period of 1995~2003 in China. In the year of 2003, non-coal mercury emissions in China reached 393 tonnes, which was 137 tonnes more than the emissions from coal combustion. Approximately 84% of the non-coal mercury emissions came from nonferrous metals smelting. The zinc production, lead production, copper production and gold production contributed respectively 51%, 18%, 4% and 11% of total non-coal mercury emissions. The shares of elemental mercury (Hg0), oxidized mercury (Hg2+) and particulate mercury (Hgp) were 77%, 18% and 5%, respectively. The mercury emissions from non-coal sources in provinces including Hunan, Henan and Yunnan exceeded 30t?a-1. The emission intensity of Shanghai, Hunan, Henan and Liaoning exceeded 1t?km-2. Main emission sources in these provinces are nonferrous metals smelting and household waste burning. Mercury emissions from non-coal sources in China increased averagely 9 percent from 1995 to 2003, and the household waste burning increased extremely fast, with an average increase rate of 42 percent. |
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