典型内分泌干扰物在太湖及其支流水体和沉积物中的污染特征

发布时间：2018-10-23 18:09

【摘要】：采用固相萃取-高效液相色谱/串联质谱法(SPE-HPLC-MS/MS)对太湖及支流表层水和沉积物中双酚A(BPA)、四溴双酚A(TBBPA)和3种烷基酚类化合物的浓度水平及分布特征进行调查,并对其潜在风险进行评估.结果表明,表层水体中壬基酚(NP)和BPA是主要检出组分,平均含量分别为29.6ng/L(0~121ng/L)和17.5ng/L(0~55.1ng/L);沉积物中NP的浓度含量最高,平均值为240ng/g(0~2045ng/g),其次为TBBPA,平均值为81.0ng/g(0~901ng/g),且目标物总含量与沉积物中TOC含量具有正相关性,整体污染趋势表现为太湖支流和北太湖较严重.生态风险评价结果表明,太湖及其支流水体中目标物的联合毒性风险熵相对较高,其生态风险不容忽视;另外,5种目标物对于人体健康风险评估表明,健康风险总EEQt值1ng E2/L,对于人体健康不具有明显的风险.
[Abstract]:The concentration and distribution of bisphenol A (BPA), tetrabromobisphenol A (TBBPA) and three alkyl phenolic compounds in surface water and sediments of Taihu Lake and its tributaries were investigated by solid-phase extraction-high performance liquid chromatography / tandem mass spectrometry (SPE-HPLC-MS/MS). The potential risk is evaluated. The results showed that nonylphenol (NP) and BPA were the main detectable components in the surface water, the average contents were 29.6ng/L (0~121ng/L) and 17.5ng/L (0~55.1ng/L), and the concentrations of NP in sediments were the highest. The average value is 240ng/g (0~2045ng/g), followed by 81.0ng/g (0~901ng/g), and the total content of target material is positively correlated with the content of TOC in sediment. The overall pollution trend is that the tributaries of Taihu Lake and the North Taihu Lake are more serious. The results of ecological risk assessment show that the joint toxicity risk entropy of the target in Taihu Lake and its tributaries is relatively high, and its ecological risk can not be ignored. Total health risk 1ng E 2 / L, 1ng E 2 / L, had no significant risk to human health.
【作者单位】：贵州大学资源与环境工程学院;环境保护部南京环境科学研究所;南京工业大学化学与分子工程学院;
【基金】：国家自然科学基金项目(21407055) 江苏省自然科学基金项目(BK20140115) 贵州大学引进人才科研基金资助(贵大人基合字(2013)13号)
【分类号】：X52

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