Hydraulic Engineering and Environmental Research Group (GTAIHA), Universidad Nacional de Colombia, Sede Manizales, Carrera 27 64-60, Manizales, Colombia.
Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, Brazil.
Mar Pollut Bull. 2021 Nov;172:112828. doi: 10.1016/j.marpolbul.2021.112828. Epub 2021 Sep 9.
Bivalves and sediments were sampled from mangroves in the Pacific Coast of Colombia to evaluate the concentrations of the 16 polycyclic aromatic hydrocarbons (PAHs) prioritized by U.S.EPA. Mangroves are highly vulnerable to anthropogenic activities, such as oil spills, which affect sediments and the organisms that depend on that ecosystem. Twelve samples of mangrove and non-mangrove (sandy) sediments and 20 samples of Anadara tuberculosa from mangrove were collected in marine and estuarine areas. In sediments and A. tuberculosa, the highest concentration of Ʃ16PAHs was found in estuarine mangroves close to the Rosario River mouth, ranging from 171.4 to 564.0 ng g and 31.0 to 169.0 ng g, respectively. For the bivalve, the concentrations showed less variability than sediment, with 25% and 20% of bivalve samples exceeding the limits established by the European Regulatory Commission and Ministry of Health and Social Protection of Colombia, respectively, which can cause effects on people's health. The PAHs isomeric ratios determined in sediments indicated that these compounds were originated mainly from petrogenic sources. The PAHs profile reveals the dominance of 3 and 4 rings PAHs in sediments and dominance of 4 rings PAHs in bivalves.
从哥伦比亚太平洋沿岸的红树林中采集双壳类动物和沉积物样本，以评估美国环保署优先考虑的 16 种多环芳烃 (PAHs) 的浓度。红树林极易受到人类活动的影响，如溢油事件，这些活动会影响沉积物和依赖该生态系统的生物。在海洋和河口地区采集了 12 个红树林和非红树林（沙质）沉积物样本和 20 个红树林 Anadara tuberculosa 样本。在沉积物和 A. tuberculosa 中，河口红树林中发现的∑16PAHs 浓度最高，靠近罗萨里奥河口，范围从 171.4 到 564.0 ng g 和 31.0 到 169.0 ng g，分别。对于双壳类动物，其浓度的变化小于沉积物，分别有 25%和 20%的双壳类动物样本超过了欧洲监管委员会和哥伦比亚卫生与社会保护部设定的限制，这可能对人类健康造成影响。沉积物中确定的 PAHs 异构体比值表明，这些化合物主要来源于石油源。PAHs 分布特征表明，沉积物中以 3 环和 4 环 PAHs 为主，双壳类动物中以 4 环 PAHs 为主。
