Objective: To study the internal and external dioxins exposure level of children living near the waste incineration power plant.
Methods: Peripheral blood of children (90 in S, 60 in L), soils, crucians, chicken eggs were sampled in town S (1 km away from a big waste incineration power plant), as well as in town L (200 km away from S), which is the control. The contents, distribution characteristics and toxic equivalent (TEQ) of dioxins in samples were evaluated by ultra-trace detection methods.
Results: The concentrations and TEQs of dioxins in blood, soils, crucians and chicken eggs from town S were significantly higher than those in town L (P < 0.05). The dominant dioxin detected from the samples is OCDD, while the dominant TEQ contribution dioxin is 2, 3, 4, 7, 8-PeCDF.
Conclusion: The emission of dioxins from the waste incineration power plant may increase the internal and external dioxins exposure level of children living nearby.