School of Life Science, Qufu Normal University, Qufu 273165, PR China; College of Resources and Environmental Science, Northwest A&F University, Yangling 712100, PR China.
School of Life Science, Qufu Normal University, Qufu 273165, PR China.
J Hazard Mater. 2023 Feb 5;443(Pt A):130153. doi: 10.1016/j.jhazmat.2022.130153. Epub 2022 Oct 10.
Research on the environmental occurrence and behavior of organophosphate esters (OPEs) is very imperative. In this study, 12 targeted OPEs in the water and sediment samples collected from the middle and lower streams of the Yellow River (YR) and its tributaries during the dry, normal, and wet season were analyzed, to reveal their concentration, spatiotemporal variations, and ecological risks. The results indicated that the total concentration of OPEs (ΣOPE) ranged from 97.66 to 2433.30 ng/L in water, and from 47.33 to 234.08 ng/g in sediment. Tris(2-chloroethyl) phosphate (TCEP), tris(2-chloroisopropyl)phosphate (TCIPP), and triethyl phosphate (TEP) were the most abundant OPEs in the surface water and sediment. The OPEs levels in river water were ranked as the order of dry > normal > wet season. The ΣOPE concentrations in water and sediment were relatively high in the central and lower sections of the YR. The resorcinol-bis(diphenyl)phosphate (RDP) effectively transferred from the overlying water to the sediment. TCEP and RDP posed relatively higher ecological risk than other OPEs. Municipal and chemical industrial discharge might be sources of OPEs in the middle and lower streams of the YR.
研究有机磷酸酯（OPEs）在环境中的赋存和行为非常必要。本研究分析了黄河干流及其支流枯、平、丰水期地表水和沉积物中 12 种目标 OPEs 的浓度、时空变化及生态风险。结果表明，水中 OPEs 的总浓度（ΣOPE）范围为 97.662433.30ng/L，沉积物中为 47.33234.08ng/g。三（2-氯乙基）磷酸酯（TCEP）、三（2-氯异丙基）磷酸酯（TCIPP）和磷酸三乙酯（TEP）是地表水和沉积物中最丰富的 OPEs。河水中 OPEs 的浓度顺序为枯水期>平水期>丰水期。黄河干流中下游地区水体和沉积物中 ΣOPE 浓度相对较高。水中的壬基酚双（二苯基）磷酸酯（RDP）有效地从表层水转移到沉积物中。三氯乙基磷酸酯（TCEP）和壬基酚双（二苯基）磷酸酯（RDP）比其他 OPEs 具有相对更高的生态风险。城市和化工排放可能是黄河干流中下游 OPEs 的来源。
