Mercury in sediment cores from the southern Gulf of Mexico: Preindustrial levels and temporal enrichment trends

Mercury in sediment cores from the southern Gulf of Mexico: Preindustrial levels and temporal enrichment trends

Spatial and temporal variability of mercury concentrations in sediments was evaluated in 210Pb-dated sediment cores from offshore and intertidal areas in the southern Gulf of Mexico. In offshore cores, mercury concentrations were comparable (11.2–69.2 ng g−1), and intermediate between concentrations...

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Veröffentlicht in:Marine pollution bulletin 2019-12, Vol.149, p.110498-110498, Article 110498
Hauptverfasser: Ruiz-Fernández, A.C., Rangel-García, M., Pérez-Bernal, L.H., López-Mendoza, P.G., Gracia, A., Schwing, P., Hollander, D., Páez-Osuna, F., Cardoso-Mohedano, J.G., Cuellar-Martinez, T., Sanchez-Cabeza, J.A.
Format: Artikel
Sprache:eng
Schlagworte:
Catchment area
Coastal zone
Coastal zones
Contamination
Cores
Enrichment
Environmental Monitoring - methods
Erosion
Erosion control
Fluxes
Geologic Sediments - chemistry
Gulf of Mexico
Gulf of Mexico large marine ecosystem
Inlets
Inlets (topography)
Inlets (waterways)
Intertidal zone
Lagoons
Land use change
Lead isotopes
Mercury
Mercury (metal)
Mercury - analysis
Mercury enrichment and fluxes
Offshore
Oil and gas industry
Oil industry
Oil pollution
Runoff
Sediment
Sediments
Sewage
Soil
Soil - chemistry
Soil contamination
Soil erosion
Soil water
Spatio-Temporal Analysis
Temporal variations
Wastewater
Water Pollutants, Chemical - analysis
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Zusammenfassung:Spatial and temporal variability of mercury concentrations in sediments was evaluated in 210Pb-dated sediment cores from offshore and intertidal areas in the southern Gulf of Mexico. In offshore cores, mercury concentrations were comparable (11.2–69.2 ng g−1), and intermediate between concentrations in intertidal cores from the eastern (6.0–34.4 ng g−1) and the western (34.9–137.7 ng g−1) inlets of Términos Lagoon. The enrichment factor (EF) indicated minimal contamination (EF 
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2019.110498