The mean PCDD/F concentrations in ambient air nearby Shulin, Linnei and Taidong municipal solid waste incinerators (MSWIs) are 0.120, 0.0879 and 0.0233 pg I-TEQ/Nm3, respectively. The mean PCDD/F contents in Ficus leaves nearby these three MSWIs are 4.61、1.79 and 1.37 pg I-TEQ/g, respectively. The mean PCDD/F contents in soil nearby these three MSWIs are 4.00, 2.50 and 0.892 pg I-TEQ/g, respectively. By comparing the PCDD/F concentration of maximum ground concentration sampling sites, upwind sampling sites and downwind sampling sites, the distribution of the PCDD/F concentration isopleths in the atmosphere and the result of PCA, the PCDD/F influence from MSWIs on nearby ambient air, vegetation and soil is not obvious, however, some sampling sites which are around by other stationary emission sources are found with elevated PCDD/F level. After four year’s operation, the dioxin level of ambient air, vegetation and soil nearby Shulin MSWI still maintain in the same level. By analyses with the t test, there is no significant difference on the dioxin level after four year’s operation.

incinerator、dioxin、ambient air、vegetation、soil