Yan J H, Xu M X, Lu S Y, Li X D, Chen T, Ni M J, Dai H F, Cen K F
State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering of Zhejiang University, Hangzhou 310027, China.
J Hazard Mater. 2008 Mar 1;151(2-3):522-30. doi: 10.1016/j.jhazmat.2007.06.018. Epub 2007 Jun 12.
The concentrations of 17PCDD/F congeners as well as tetra- to octa-homologues were determined in 33 soil samples collected within a radius of 7 km from a municipal solid waste (MSW) incineration plant that is equipped with three fluidized bed incinerators (FBIs) of co-firing MSW with coal in Hangzhou, China. The total PCDD/F concentrations ranged from 0.39 to 5.04 pg I-TEQ g(-1) (54-285 pg g(-1)), with an average and a median value of 1.22 and 0.84 pg I-TEQ g(-1) (105 and 86 pg g(-1)), respectively. A systematic decrease of PCDD/F levels was observed with the increasing distances and with the decreasing downwind frequencies from the plant. The comparisons of homologue and congener patterns and multivariate analysis of soil and flue gas samples strongly indicated that most of the soil samples were influenced by the FBIs. Apart from the incineration plant, historical PCDD/F emissions of hazardous waste incinerator (HWI) and motor vehicles as well as the application of 1,3,5-trichloro-2-(4-nitrophenoxy) benzene (CNP) seemed to play an important role in soil samples adjacent to these potential sources.
在中国杭州,对从一座配备了三台将城市固体废弃物(MSW)与煤共烧的流化床焚烧炉(FBI)的城市固体废弃物焚烧厂半径7公里范围内采集的33份土壤样品,测定了17种多氯二苯并二恶英/多氯二苯并呋喃(PCDD/F)同系物以及四至八氯代同系物的浓度。PCDD/F的总浓度范围为0.39至5.04皮克国际毒性当量克-1(54至285皮克克-1),平均和中值分别为1.22和0.84皮克国际毒性当量克-1(105和86皮克克-1)。随着与工厂距离的增加以及下风向频率的降低,观察到PCDD/F水平呈系统性下降。同系物和异构体模式的比较以及土壤和烟气样品的多变量分析有力地表明,大多数土壤样品受到FBI的影响。除了焚烧厂之外,危险废物焚烧炉(HWI)和机动车的历史PCDD/F排放以及1,3,5-三氯-2-(4-硝基苯氧基)苯(CNP)的使用似乎在这些潜在源附近的土壤样品中发挥了重要作用。