Indoor pollution of manmade semivolatile organic compounds(SVOCs)such as phthalates are a growing threat to human health.Herein we summarize the dust-phase phthalate concentrations in Chinese residences reported from ...Indoor pollution of manmade semivolatile organic compounds(SVOCs)such as phthalates are a growing threat to human health.Herein we summarize the dust-phase phthalate concentrations in Chinese residences reported from 2011 to 2021and simulate corresponding airborne concentrations based on equilibrium models.The simulation considers seasonal and regional variations in indoor temperature and PM_(2.5)concentration,in contrast to the common practice of using constant values.Results show that variations in these two environmental factors lead to up to ten-and six-fold variations in the monthly median gas-and particle-phase concentrations of phthalates,respectively,in residences in individual climate zones.For higher-vaporpressure species di-n-butyl phthalate and di-isobutyl phthalate,the resultant seasonal and regional variations in aggregate nondiet intake can reach six-and three-fold,respectively.These results have important implications on exposure assessment of SVOCs and epidemiological evaluation of their health effects.展开更多
基金supported by the National Natural Science Foundation of China(92044303 and 22076004)
文摘Indoor pollution of manmade semivolatile organic compounds(SVOCs)such as phthalates are a growing threat to human health.Herein we summarize the dust-phase phthalate concentrations in Chinese residences reported from 2011 to 2021and simulate corresponding airborne concentrations based on equilibrium models.The simulation considers seasonal and regional variations in indoor temperature and PM_(2.5)concentration,in contrast to the common practice of using constant values.Results show that variations in these two environmental factors lead to up to ten-and six-fold variations in the monthly median gas-and particle-phase concentrations of phthalates,respectively,in residences in individual climate zones.For higher-vaporpressure species di-n-butyl phthalate and di-isobutyl phthalate,the resultant seasonal and regional variations in aggregate nondiet intake can reach six-and three-fold,respectively.These results have important implications on exposure assessment of SVOCs and epidemiological evaluation of their health effects.
