A total of 133 seawater samples and 17 sediment samples were collected from 81 sampling sites in the Changjiang River Estuary and its adjacent area and were analyzed for 16 phthalate esters (PAEs). The Σ₁₆ PAE concentrations in the seawater and sediment samples ranged from 180.3 ng·L^− 1 to 3421 ng·L^− 1 and from 0.48 μg·g^− 1 to 29.94 μg·g^− 1 dry weight (dw), respectively, with mean values of 943.6 ng·L^− 1 and 12.88 μg·g^− 1. The distribution of ∑₁₆PAE concentrations in the water column showed that PAE concentrations in the bottom samples were higher than those in the surface samples (except the transect C located inside the Changjiang River Estuary), with the maxima appearing in the bottom layer at the offshore stations. Among the 16 PAEs, di (2-ethylhexyl) phthalate (DEHP), diisobutyl phthalate (DiBP), and dibutyl phthalate (DnBP) dominated the PAEs, with 25.1%, 21.1%, and 18.9% of the Σ₁₆PAEs in seawater, respectively. The comparison of ∑₁₆PAEs and salinities in transects C and A6 suggested that the Changjiang River runoff was an important driving factor influencing the distribution of PAEs. DEHP concentrations in water samples and DEHP and DnBP concentrations in sediment samples exceeded the environmental risk levels (ERL), indicating their potential hazard to the ocean environment.

从长江口及其邻近地区的81个采样点收集了133个海水样品和17个沉积物样品，并分析了16种邻苯二甲酸酯（PAE）。所述Σ ₁₆在海水中PAE浓度和沉积物样本从180.3纳克·L范围^{- 1}至3421纳克·L ^{- 1}和从0.48微克·克^{- 1}至29.94微克·克^{- 1个} 分别干重（DW），与平均值为943.6 ng·L ^-1和12.88μg·g ^-1。∑ ₁₆的分布水柱中的PAE浓度表明，底部样品中的PAE浓度高于地表样品中的PAE浓度（位于长江口内的断面C除外），最大值出现在离岸站的底层。间的16种邻苯二甲酸酯，二（2-乙基己基）邻苯二甲酸酯（DEHP），邻苯二甲酸二异丁酯（DIBP），和邻苯二甲酸二丁酯（DNBP）占主导地位的邻苯二甲酸酯，25.1％，21.1％，和Σ的18.9％₁₆在海水中邻苯二甲酸酯，分别。∑ ₁₆的比较C和A6断面的PAEs和盐度表明，长江径流是影响PAEs分布的重要驱动因素。水样品中的DEHP浓度以及沉积物样品中的DEHP和DnBP浓度超过了环境风险水平（ERL），表明它们对海洋环境的潜在危害。