Distribution of perfluorooctane sulfonate and other perfluorochemicals in the ambient environment around a manufacturing facility in China.
Perfluorinated compounds (PFCs) can be released to the surrounding environment during manufacturing and usage of PFC containing products, which are considered as main direct sources of PFCs in the environment. This study evaluates the release of perfluorooctane sulfonate (PFOS) and other PFCs to the ambient environment around a manufacturing plant. Among the nine PFCs analyzed, only PFOS, perfluorooctanoic acid (PFOA), and perfluorohexane sulfonate (PFHxS) were found in dust, water, soil, and chicken eggs. Very high concentrations of PFOS and PFOA were found in dust from the production storage, raw material stock room, and sulfonation workshop in the manufacturing facility, with the highest value at 4962 μg/g (dry weight) for PFOS and 160 μg/g for PFOA. A decreasing trend of the three PFCs concentrations in soils, water, and chicken eggs with increasing distance from the plant was found, indicating the production site to be the primary source of PFCs in this region. Risk quotients (RQs) assessment for surface water >500 m away from the plant were less than unity. Risk assessment of PFOS using predicted no-effect concentration (PNEC, 3.23 ng/g on a logarithmic scale) indicated no immediate ecological risk of a reduction in offspring survival. PFOS concentrations in most egg samples did not exceed the benchmark concentration derived in setting a reference dose for noncancer health effects (0.025 μg/(kgxd)).
Wang
Yawei
Y
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Fu
Jianjie
J
Wang
Thanh
T
Liang
Yong
Y
Pan
Yuanyuan
Y
Cai
Yaqi
Y
Jiang
Guibin
G
D017738:Alkanesulfonic Acids / Q000032:analysis*; D000818:Animals; D002210:Caprylates / Q000032:analysis; D002645:Chickens; D002681:China; D004391:Dust / Q000032:analysis; D004531:Eggs / Q000032:analysis; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D005466:Fluorocarbons / Q000032:analysis*; D005618:Fresh Water / Q000737:chemistry; D006801:Humans; D007220:Industrial Waste / Q000032:analysis; D018570:Risk Assessment; D012987:Soil / Q000737:chemistry
D017738:Alkanesulfonic Acids; D002210:Caprylates; D004391:Dust; D004785:Environmental Pollutants; D005466:Fluorocarbons; D007220:Industrial Waste; D012987:Soil; C023036:perfluorooctanoic acid; C076994:perfluorooctane sulfonic acid