4.6 Article

Study of the Spatiotemporal Variations, Source Determination, and Potential Ecological Risk of Organophosphate Esters in Typical Coastal Tourist Resorts in China

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WATER
卷 15, 期 22, 页码 -

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MDPI
DOI: 10.3390/w15223976

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organophosphate esters; spatial distribution; ecological risk assessment; coastal tourist resorts

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Investigation of the occurrence and behavior of OPEs in water and sediment of coastal tourist resorts in the Shandong Peninsula in China was conducted. The study revealed the concentrations, spatial variations, and potential ecological risks of 12 targeted OPEs. The results indicated the presence of OPEs in the water and sediment, with sewage treatment plants and industrial emissions being possible sources. The study emphasizes the importance of addressing the existence of OPEs and the safety of aquatic environments near coastal tourist resorts.
Investigation of the environmental occurrence and behavior of organophosphate esters (OPEs) is very important and is becoming a hot topic in the academic community. In this study, 12 targeted OPEs in the water and sediment from 19 coastal tourist resorts in the Shandong Peninsula in China were analyzed to show their concentrations, spatial variations, and potential ecological risks. The results showed that the total concentrations of OPEs (sigma OPEs) were in the range of 18.52-3069.43 ng/L in the water and 3.20-568.76 ng/g in the sediment. The dominant OPEs in the water and sediment were tris (2-chloroisopropyl) phosphate (TCIPP), tris (2-chloroethyl) phosphate (TCEP), and triethyl phosphate (TEP). The OPE concentrations in the water were ranked as dry season > normal season > wet season. The sewage treatment plants near tourist resorts were important contributors to the level of OPEs in the water. Triphenyl phosphate (TPHP), tri-n-butyl phosphate (TNBP), and resorcinol-bis(diphenyl)phosphate (RDP) had a relatively higher ecological risk than other OPEs in the water samples. Industrial emissions might be the main source of OPEs in the coastal tourist resorts of Shandong Peninsula in China. The results of this study verified that OPEs occur in the water and sediment of coastal tourist resorts, and more attention should be given to the existence of OPEs and the safety of aquatic environments near coastal tourist resorts.

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