APAE Higher Institute of Applied Sciences and Technology, University of Monastir, Mahdia, Tunisia.
BioMorf Department, University of Messina, Viale Annunziata, Polo Universitario, 98168, Messina, Italy.
Environ Pollut. 2021 Feb 15;271:116266. doi: 10.1016/j.envpol.2020.116266. Epub 2020 Dec 17.
140 contaminants belonging to various classes (organochlorine and organophosphorus pesticides, pyrethroid insecticides, carbamates, fungicides, acaricides, herbicides, synergists, insect growth regulators, polychlorobiphenyls, polycyclic aromatic hydrocarbons) were simultaneously analysed by GC-MS/MS in marine sediments, aquatic plant leaves and fish tissues samples. A total of 260 samples from five stations along the coast of Tunisia were evaluated. The results highlight that only 28 residues (12 polychlorobiphenyls, 8 organochlorine pesticides, 7 polycyclic aromatic hydrocarbons and triphenyl phosphate) were detected at levels higher than relative LOQ values. The amounts in sediment samples were compared with Sediment Quality Guidelines (SQGs) showing that the values are acceptable and no toxic effect is expected on aquatic organisms. A little variation of contaminant residues in sediment samples among coastal stations was recorded. Namely, with respect to almost all polychlorobiphenyls and organochlorine pesticides, higher values were recorder in summer. With respect to almost all polycyclic aromatic hydrocarbons, higher values were recorder in autumn. Aquatic plant leaves showed a residue accumulation higher than that of other compartments of marine system. The data about fish samples (Sparus aurata and Sarpa salpa, the two most frequently caught fish species at five sites on the central coast of Tunisia) do not pose direct hazard to human health because values were lower than protection limits.
140 种污染物属于不同类别（有机氯和有机磷农药、拟除虫菊酯杀虫剂、氨基甲酸酯、杀真菌剂、杀螨剂、除草剂、增效剂、昆虫生长调节剂、多氯联苯、多环芳烃），通过 GC-MS/MS 同时分析了海洋沉积物、水生植物叶片和鱼类组织样本。评估了来自突尼斯沿海五个站点的总共 260 个样本。结果表明，只有 28 种残留物（12 种多氯联苯、8 种有机氯农药、7 种多环芳烃和三苯基磷酸酯）的水平高于相对 LOQ 值。沉积物样本中的含量与沉积物质量指南（SQGs）进行了比较，结果表明这些值是可接受的，预计不会对水生生物产生毒性影响。记录到沿海站沉积物样本中污染物残留的微小变化。即，就几乎所有的多氯联苯和有机氯农药而言，夏季的含量更高。就几乎所有的多环芳烃而言，秋季的含量更高。水生植物叶片的残留积累高于海洋系统的其他部分。关于鱼类样本（在突尼斯中部沿海五个地点最常捕捞的两种鱼类，撒丁鱼和蓝鳍金枪鱼）的数据不会对人类健康造成直接危害，因为这些值低于保护限值。
