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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Contamination Level Distribution Characteristics and Ecotoxicity of Tetrabromobisphenol A in Water and Sediment from Weihe River Basin China
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Contamination Level Distribution Characteristics and Ecotoxicity of Tetrabromobisphenol A in Water and Sediment from Weihe River Basin China

机译：渭河流域水和沉积物中四溴双酚A的污染水平分布特征和生态毒性

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Tetrabromobisphenol A (TBBPA) is a brominated flame retardant, which is widely present in the various environmental and biological media. The knowledge on the contamination of TBBPA in Weihe River Basin is still limited. In order to know the pollution level and distribution of tetrabromobisphenol A (TBBPA) in the Weihe River Basin, a total of 34 sediment samples and 36 water samples were collected from the main stream and tributaries of the WeiHe River Basin, and the concentration of TBBPA in the samples was analyzed by high-performance liquid chromatography–electrospray ionization–mass spectrometry (HPLC-ESI-MS). The detection frequency of TBBPA in sediments and water samples was 61.8% and 27.8%, respectively; the TBBPA concentrations in sediments and water samples were in the range of not detected (N.D.)–3.889 ng/g (mean value of 0.283 ng/g) and N.D—12.279 ng/L (mean value of 0.937 ng/L), respectively. Compared with other areas in China, the residues of TBBPA in the Weihe River Basin were at a relatively low level. The spatial distributions of TBBPA in surface sediments and water indicated that the local point-input was their major source. This is related to the proximity of some sampling sites to industrial areas and domestic sewage discharge areas. The insignificant correlation between TBBPA and total organic carbon (TOC) indicated that TBBPA in sediments is not only influenced by TOC but also affected by atmosphere and land input, wet deposition, and long-distance transmission. The potential risks posed by TBBPA in water and sediment were characterized using the risk quotient (RQ) method. The calculated RQ for TBBPA was less than 0.01, showing that the ecological risk due to TBBPA was quite low for aquatic organisms.
机译：四溴双酚A（TBBPA）是一种溴化阻燃剂，广泛存在于各种环境和生物介质中。关于渭河流域TBBPA污染的知识仍然有限。为了了解渭河流域四溴双酚A（TBBPA）的污染水平和分布，从渭河干流和支流中收集了34个沉积物样品和36个水样品，以及TBBPA的浓度用高效液相色谱-电喷雾电离-质谱（HPLC-ESI-MS）分析样品中的残留。沉积物和水样中TBBPA的检出率分别为61.8％和27.8％;沉积物和水样中的TBBPA浓度分别处于未检测到的范围（ND）–3.889 ng / g（平均值为0.283 ng / g）和ND–12.279 ng / L（平均值为0.937 ng / L）。 。与中国其他地区相比，渭河流域的三溴双酚A残留量相对较低。 TBBPA在地表沉积物和水中的空间分布表明，本地点输入是其主要来源。这与一些采样点靠近工业区和生活污水排放区有关。 TBBPA与总有机碳（TOC）之间的相关性不显着，表明沉积物中的TBBPA不仅受TOC影响，而且还受大气和土地投入，湿沉降和长距离传输的影响。使用风险商（RQ）方法对TBBPA在水和沉积物中造成的潜在风险进行了表征。计算得出的TBBPA的RQ小于0.01，这表明由于TBBPA对水生生物造成的生态风险非常低。

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