School of Environmental Science and Engineering, South China University of Technology, Guangzhou, 510006, PR China.
Sci Total Environ. 2011 Dec 15;412-413:214-22. doi: 10.1016/j.scitotenv.2011.10.024. Epub 2011 Nov 12.
A 3 km × 3 km gridded mercury emission inventory in the Pearl River Delta (PRD) region for 2008 was compiled from the best available emission factors and official statistical data. The inventory presented a comprehensive estimation of anthropogenic mercury sources and roughly estimated the emissions from natural sources. The total mercury emissions in the PRD region for the year of 2008 are estimated to be 17,244 kg, of which 85% released as Hg(0), 11% as Hg(2+), and 4% as Hg(P). Anthropogenic activities are dominant sources, accounting for 91% of the total emissions, while natural sources constitute the remaining emissions. Ranking by cities, Foshan produces the largest mercury emissions, followed by Dongguan, Guangzhou and Jiangmen. Coal combustion, municipal solid waste (MSW) incineration, fluorescent lamp and battery production are dominant contributors, responsible for 28%, 21%, 19% and 16% of the anthropogenic emissions, respectively. The high contribution of MSW incineration results from the rapid growth of MSW incineration in this region, reflecting a new trend of mercury emissions in China, especially in the fast developing regions. This implies the urgent need for further investigation of mercury emissions and the importance of controlling mercury emissions from MSW incineration.
2008 年珠江三角洲（PRD）地区 3 公里×3 公里网格化汞排放清单是根据最佳可得排放因子和官方统计数据编制的。该清单全面估计了人为汞源，并粗略估计了自然源的排放。2008 年 PRD 地区的总汞排放量估计为 17244 千克，其中 85%以 Hg(0)的形式释放，11%以 Hg(2+)的形式释放，4%以 Hg(P)的形式释放。人为活动是主要来源，占总排放量的 91%，而自然源构成其余排放量。按城市排名，佛山产生的汞排放量最大，其次是东莞、广州和江门。煤炭燃烧、城市固体废物（MSW）焚烧、荧光灯和电池生产是主要贡献者，分别占人为排放的 28%、21%、19%和 16%。MSW 焚烧的高贡献率源于该地区 MSW 焚烧的快速增长，反映了中国汞排放的新趋势，尤其是在快速发展的地区。这意味着迫切需要进一步调查汞排放情况，以及控制 MSW 焚烧产生汞排放的重要性。
