华南珠江口海洋亲脂性藻毒素的发生、空间分布及分配行为,Environmental Pollution

当前位置： X-MOL 学术 › Environ. Pollut. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

华南珠江口海洋亲脂性藻毒素的发生、空间分布及分配行为
Environmental Pollution ( IF 7.6 ) Pub Date : 2022-08-01 , DOI: 10.1016/j.envpol.2022.119875
Jing Li ₁ , Yuefei Ruan ₂ , Rongben Wu ₃ , Yongsheng Cui ₄ , Jincan Shen ₅ , Yim Ling Mak ₆ , Qi Wang ₂ , Kai Zhang ₃ , Meng Yan ₂ , Jiaxue Wu ₄ , Paul K S Lam ₇

Affiliation

State Key Laboratory of Marine Pollution (SKLMP) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519080, China; Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen, 518172, China.
State Key Laboratory of Marine Pollution (SKLMP) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519080, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.
State Key Laboratory of Marine Pollution (SKLMP) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519080, China.
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519080, China; School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China.
Food Inspection and Quarantine Technology Center of Shenzhen Customs, Key Laboratory of Detection Technology R & D on Food Safety, Shenzhen Academy of Inspection Quarantine, Shenzhen, 518026, China.
State Key Laboratory of Marine Pollution (SKLMP) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
State Key Laboratory of Marine Pollution (SKLMP) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519080, China; Office of the President, Hong Kong Metropolitan University, 30 Good Shepherd Street, Hong Kong SAR, China.

调查了珠江口 (PRE) 表层和底层海水、颗粒有机物 (POM) 和表层沉积物中 17 种海洋亲脂性藻毒素 (MLP) 的发生、空间分布和分配行为，以了解当前污染和潜在污染该地区海洋生态系统面临的风险。检测到 9 种 MLP，包括 azaspiracid1-3、gymnodimine、okadaic acid、dinophysistoxin 1-2、pectenotoxin2 (PTX2) 和 homoyessotoxin，Σ ₁₇ MLP 浓度范围为 545-12,600 pg L ^-1和 619-8,800 pg L ^-1分别为表层海水和底层海水；表面和底部 POM 的干重 (dw) 分别为0–294 ng g ^-1和 0.307–300 ng g ^{-1 ；}和 3.90–982 pg g^-1 dw 在表层沉积物中。在 PRE 河口处发现海水中较低的 Σ ₁₇ MLP 水平，并随着离岸距离的增加而逐渐增加。根据计算出的分配系数，MLPs对水环境组分的亲和力为（从高到低）：POM>海水>沉积物。总体而言，PRE 中 MLPs 的分布和迁移可能取决于分配系数、有机碳分数和环境因素。

"点击查看英文标题和摘要"

Occurrence, spatial distribution, and partitioning behavior of marine lipophilic phycotoxins in the Pearl River Estuary, South China

The occurrence, spatial distribution, and partitioning behavior of 17 marine lipophilic phycotoxins (MLPs) in surface and bottom seawater, particulate organic matter (POM), and surface sediment from the Pearl River Estuary (PRE) were investigated to understand current contamination and the potential risks to marine ecosystems in this region. Nine MLPs were detected, including azaspiracid1−3, gymnodimine, okadaic acid, dinophysistoxin 1−2, pectenotoxin2 (PTX2), and homoyessotoxin, with Σ₁₇MLP concentrations ranging 545–12,600 pg L⁻¹ and 619−8,800 pg L⁻¹ in surface and bottom seawater, respectively; 0–294 ng g⁻¹ and 0.307–300 ng g⁻¹ dry weight (dw) in surface and bottom POM, respectively; and 3.90–982 pg g⁻¹ dw in surface sediment. Lower Σ₁₇MLP levels in the seawater were found at the mouth of the PRE, and gradually increased with increasing distance offshore. According to the calculated partition coefficient, the affinity of MLPs for the aquatic environment components was as follows (from highest to lowest): POM > seawater > sediment. Overall, the distribution and migration of MLPs in the PRE may depend on partition coefficients, the organic carbon fraction, and environmental factors.

更新日期：2022-08-05

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南