Persistent organic pollutants in sediment cores of Laguna El Yucateco, Tabasco, Southeastern Gulf of Mexico

摘要: Information is presented on the content of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in sediment cores collected coastal ecosystem Laguna El Yucateco, located tropical southeastern Gulf Mexico. The lies a region where human population socially economically limited, it subjected to great environmental pressure derived mainly from oil industry. vertical profiles data show that concentration various persistent organic pollutants (POPs) does not present homogeneous pattern, making evident levels these depend strongly anthropological discharges industrial, urban farming sources, as well those originated by sanitary control measures for prevention diseases such malaria. Potentially carcinogenic compounds were found, including benzo(a)pyrene, aldrin congeners have been classified endocrine disruptors. magnitude alarming, values above quality criteria established prevent damage benthic organisms. Coastal sediments also represent an environmentally risky secondary source pollutants.