Contamination derived from maritime transportation is not only linked to petroleum-based substances but also to transportation of other substances such as hazardous and noxious nature (HNS). Over the last decade, the maritime trade of HNS has been augmenting. However, levels of HNS in aquatic environment are still quite unknown. So, an integrative study, combining a chemical and a multi-biomarker evaluation, was done in the NW Atlantic Iberian coast where specimens of Mytilus sp. were collected. Ten HNS were found in the digestive gland of mussels from Vila Chã and Foz, though at generally low levels. Only measurable levels of benzene, trichloroethylene and 1,1,2-trichlorethane were found in other locations. Principal component analysis produced a clear distinction between Vila Chã and Foz and the remaining sampling sites. Biomarkers associated to contamination were the levels of lipid peroxidation (LPO) and activity of glutathione reductase (GR), superoxide dismutase (SOD) and glutathione peroxidase (GPx) enzymes. Correlations between biomarkers and HNS levels highlight the importance of performing biomonitoring campaigns integrating chemical analysis and a biomarker approach to accurately assess the environmental state of aquatic environments.

海上运输产生的污染不仅与石油基物质有关，而且还与其他物质（如有害和有毒自然物质（HNS））的运输有关。在过去的十年中，HNS的海上贸易一直在增长。然而，在水生环境中HNS的水平仍然是未知的。因此，在西北大西洋伊比利亚海岸的Mytilus sp标本上进行了一项综合研究，结合了化学和多种生物标志物评估。被收集。十HNS贻贝从消化腺发现维拉查和伊，尽管通常处于较低水平。在其他地区仅发现可测量水平的苯，三氯乙烯和1,1,2-三氯乙烷。主成分分析在VilaChã和Foz与其余采样点之间有明显的区别。与污染相关的生物标志物是脂质过氧化（LPO）的水平以及谷胱甘肽还原酶（GR），超氧化物歧化酶（SOD）和谷胱甘肽过氧化物酶（GPx）酶的活性。生物标志物与HNS水平之间的相关性突出了进行整合化学分析和生物标志物方法以准确评估水生环境状况的生物监测活动的重要性。