TY - JOUR
T1 - Agricultural soil monitoring of PCDD/Fs in the vicinity of a municipal solid waste incinerator in Eastern China
T2 - Temporal variations and possible sources
AU - Xu, Meng xia
AU - Yan, Jian hua
AU - Lu, Sheng yong
AU - Li, Xiao dong
AU - Chen, Tong
AU - Ni, Ming jiang
AU - Dai, Hui fen
AU - Wang, Fei
AU - Cen, Ke fa
N1 - Funding Information:
The financial support by the National High Technology Research and Development Key Program of China (2007AA061304-2), Zhejiang Provincial Natural Science Foundation of China (X206955, X506312), Project on Science and Technology of Zhejiang Province of China (2008C23090), Zhejiang Provincial Medicine and Health Science Research Foundation of China (2007A047), Zhejiang Provincial Education Foundation of China (N20080181), and Zhejiang University Y.C. Tang Disciplinary Development Fund are greatly acknowledged. The authors are thankful to Ms. Jaffe for the English proof-reading of this manuscript and to Dr. Chen Chong and B.S. Liu Yan-quan for their assistance in soil sampling, and to Ma Wan-li and Du Rong-guang, Meteorological Bureau of Hangzhou, for supplying the hourly meteorological data of the study area.
PY - 2009/7/30
Y1 - 2009/7/30
N2 - The temporal variations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in 33 agricultural soil samples in the vicinity of a municipal solid waste incinerator (MSWI) in Eastern China were determined one year after the initial investigation in 2006. The soil PCDD/F concentrations in 2007 ranged from 73.6 to 377 ng kg-1 (0.60-6.38 ng I-TEQ kg-1). During 2006-2007, the overall soil PCDD/F levels increased significantly, i.e., 33% and 39% for total concentration and I-TEQ (median value), respectively. Moreover, soils in the study area are proved to be almost free from previously suspected PCDD/F sources, i.e., pentachlorophenol/sodium penta-chlorophenate (PCP/PCP-Na) and 1,3,5-trichloro-2-(4-nitrophenoxy) benzene (CNP) contaminations. Furthermore, the results from a congener-specific factor analysis between soils (collected in two investigations) and dioxin emission sources suggest that diffuse sources including open burning of wastes, traffic and hot water boilers are major contributors that are responsible for the accumulation of PCDD/Fs in soils. By contrast, the impact of the presumably major PCDD/F source identified in our previous study, i.e., the MSWI, seems to be limited.
AB - The temporal variations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in 33 agricultural soil samples in the vicinity of a municipal solid waste incinerator (MSWI) in Eastern China were determined one year after the initial investigation in 2006. The soil PCDD/F concentrations in 2007 ranged from 73.6 to 377 ng kg-1 (0.60-6.38 ng I-TEQ kg-1). During 2006-2007, the overall soil PCDD/F levels increased significantly, i.e., 33% and 39% for total concentration and I-TEQ (median value), respectively. Moreover, soils in the study area are proved to be almost free from previously suspected PCDD/F sources, i.e., pentachlorophenol/sodium penta-chlorophenate (PCP/PCP-Na) and 1,3,5-trichloro-2-(4-nitrophenoxy) benzene (CNP) contaminations. Furthermore, the results from a congener-specific factor analysis between soils (collected in two investigations) and dioxin emission sources suggest that diffuse sources including open burning of wastes, traffic and hot water boilers are major contributors that are responsible for the accumulation of PCDD/Fs in soils. By contrast, the impact of the presumably major PCDD/F source identified in our previous study, i.e., the MSWI, seems to be limited.
KW - Agricultural soil
KW - Hot water boiler
KW - MSWI
KW - Open burning
KW - Polychlorinated-p-dioxins and dibenzofurans
UR - http://www.scopus.com/inward/record.url?scp=67349209887&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2008.11.072
DO - 10.1016/j.jhazmat.2008.11.072
M3 - Article
C2 - 19135306
AN - SCOPUS:67349209887
SN - 0304-3894
VL - 166
SP - 628
EP - 634
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 2-3
ER -
