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With the rapid socio-economic development, increasing the generation of hazardous waste, and waste incineration technology because of its harmlessness, minimization, recycling has been the rapid popularization and application. Incineration of hazardous waste disposal center more and more, and the resulting secondary pollution - especially the environmental toxicity of dioxin emissions and health hazards become a social focus. In 2008-2009, this follow-up monitoring of Hangzhou, a hazardous waste incineration plants surrounding soil concentrations of dioxins and fingerprint feature distribution, and monitoring of the incineration plant flue gas, fly ash dioxin emissions. The following conclusions: 2008 soil dioxin concentrations ranged from 0.48-42.37 ng I-TEQ kg-1, an average of 7.35 ngI-TEQ kg-1, with a median value of 5.85 ng I-TEQ kg-1. 2009 年incineration plants surrounding soil dioxin concentrations ranged from 0.65-41.75 ng I-TEQ kg-1, an average of 9.94 ng I-TEQ kg-1, with a median value of 7.36 ngI-TEQ kg-1. Data show that the body of incineration plants surrounding soil (2008, incineration plant is not running) has been more serious pollution. 2008-2009, the total concentration of dioxins and soil TEQ increased by 22.83% and 25.81% (median value). Two soil homologues, isomers of toxic concentrations and toxic equivalent fingerprint characteristics were similar. For these three fingerprint features, OCDD are major contributors. Incineration plant flue gas emissions of dioxins 0.021-0.845 ng I-TEQ Nm-3, two fly ash samples dioxin content of 2.55 ng I-TEQ g-1 and 1.81 ng I-TEQ g- 1. Flue gas with fly ash TEQ toxic isomer relatively similar characteristics. 2,3,4,7,8-PeCDF as the main contributor to TEQ, followed HxCDF toxic homologues accounted for a larger proportion, PCDFs proportion than PCDDs. But with the surrounding soil dioxin fingerprint characteristics are different. Through the old industrial area north of the city of Hangzhou, the new industrial areas, tourist areas a total of 15 mass concentration of dioxins in soil samples analyzed, the results showed that: the old industrial area of ??Hangzhou soil dioxin TEQ range (average) of 0.65-41.75 ng I-TEQ kg-1 (12.73 ng I-TEQ kg-1). New industrial zones and tourist areas of 0.61-1.33 ngI-TEQ kg-1 and 1.53-2.11 ng I-TEQ kg-1, an average of 1.07 ng I-TEQ kg-1 and 1.81 ngI-TEQ kg-1. Source through incineration with flue gas dioxin fingerprint feature comparison, three zones of the soil with incineration emissions by sources vary fingerprint characteristics that may be affected by soil sampling of other potential sources of pollution.
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