Epidemiological and toxicological studies have proved that semi-volatile organic compounds (SVOCs) may have significant adverse effects on human health.For example,phthalic acid esters (PAEs),polybrominated diphenyl e...Epidemiological and toxicological studies have proved that semi-volatile organic compounds (SVOCs) may have significant adverse effects on human health.For example,phthalic acid esters (PAEs),polybrominated diphenyl ethers (PBDEs) and polycyclic aromatic hydrocarbons (PAHs) may harm the endocrine,reproductive and respiratory systems of humans.Moreover,some SVOCs are carcinogenic.This paper summarizes the source emission characteristics for typical SVOCs observed indoors,evaluates the gas-phase and particle-phase concentrations of indoor di-2-ethylhexyl phthalate (DEHP) under the steady-state condition,estimates the exposure of PAEs and the health risk of PAHs,and then proposes some solutions to some urgent problems for indoor SVOC pollution.The results show that the production and consumption quantities of plasticizers,coal and cigarettes in China are the highest in the world,and that the consumption of flame retardants and pesticides are also very high.As estimated,indoor plasticizer and flame retardant concentrations are higher in China than that of the developed countries such as the USA,which implies that indoor SVOC pollution may be more serious in China.According to the model analysis,DEHP remains mainly in the particle-phase under the steady-state condition;the particle-phase concentration of DEHP increases with increasing particle concentration.The exposure of DEHP is higher for children than it is for adults.It is estimated that 260 thousand people are diagnosed with cancer resulting from exposure to PAHs every year.A multidisciplinary approach to the further study of indoor SVOC pollution is necessary.展开更多
基金supported by the National Natural Science Foundation ofChina (Grant No. 50725620)
文摘Epidemiological and toxicological studies have proved that semi-volatile organic compounds (SVOCs) may have significant adverse effects on human health.For example,phthalic acid esters (PAEs),polybrominated diphenyl ethers (PBDEs) and polycyclic aromatic hydrocarbons (PAHs) may harm the endocrine,reproductive and respiratory systems of humans.Moreover,some SVOCs are carcinogenic.This paper summarizes the source emission characteristics for typical SVOCs observed indoors,evaluates the gas-phase and particle-phase concentrations of indoor di-2-ethylhexyl phthalate (DEHP) under the steady-state condition,estimates the exposure of PAEs and the health risk of PAHs,and then proposes some solutions to some urgent problems for indoor SVOC pollution.The results show that the production and consumption quantities of plasticizers,coal and cigarettes in China are the highest in the world,and that the consumption of flame retardants and pesticides are also very high.As estimated,indoor plasticizer and flame retardant concentrations are higher in China than that of the developed countries such as the USA,which implies that indoor SVOC pollution may be more serious in China.According to the model analysis,DEHP remains mainly in the particle-phase under the steady-state condition;the particle-phase concentration of DEHP increases with increasing particle concentration.The exposure of DEHP is higher for children than it is for adults.It is estimated that 260 thousand people are diagnosed with cancer resulting from exposure to PAHs every year.A multidisciplinary approach to the further study of indoor SVOC pollution is necessary.
