AI Article Synopsis
- Levrier Bay is a key fishing area facing growing threats from human activities, especially from Polycyclic Aromatic Hydrocarbons (PAHs), which are concerning pollutants.
- An analysis of 16 EPA-PAHs in Perna perna species and sediment indicates that PAH levels in Levrier Bay are lower than those in highly polluted Dakar but comparable to Moroccan coasts like Casablanca and Tangier.
- The findings emphasize the need for effective pollutant monitoring in the area, as Perna perna serves as a strong bioindicator for PAHs, highlighting potential impacts on the environment.
Article Abstract
Levrier Bay is an important fishing area which is under growing anthropogenic pressures seriously threatening this treasure. Among these pressures Polycyclic Aromatic Hydrocarbon are of great environmental concern. Therefore, 16 EPA-PAHs were analyzed using GC-MS in Perna perna species and sediment. Comparison with Dakar (Senegal) and Moroccan coasts shows that PAHs levels are strikingly lower than that of heavily polluted Dakar coast (2474 μg/kg); nevertheless, comparable to Moroccan Casablanca and Tangier coasts (245 and 351 μg/kg, respectively). Ratio analysis indicates the predominance of pyrogenic sources and partial contribution of automotive traffic for the half of 4 sites. Furthermore, statistical analys shows that there are no significative differences, except for Benzo(b)Fluorentene in P. perna tissue and 4 PAHs (Fluorene; Fluorenthene; Pyrene; diBenzo(ah)Anthracene and dBahANT) in sediment for sites samples. Furthermore, bioconcentration indicates that P. perna is an excellent PAHs bioindicator. This points the necessity for immediate introduction of a sound Pollutants monitoring system.
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| http://dx.doi.org/10.1016/j.marpolbul.2021.112040 | DOI Listing |
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