Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Punta Morro Campus, Kilómetro 103, Carretera Tijuana-Ensenada, Ensenada, Baja California, Mexico.
Mar Pollut Bull. 2013 Dec 15;77(1-2):71-81. doi: 10.1016/j.marpolbul.2013.10.030. Epub 2013 Nov 12.
The biogeochemistry of trace metals in nearshore sediments and mussel was studied at 15 stations along a 1000 km long transect paralleling the west coast of the Gulf of California (GOC). Total trace metal (Me) and enrichment factor (EF(Me)) values in sediments were low due to negligible anthropogenic influence in the region. Past copper mining, however, near Santa Rosalia caused concentrations of Pb, Mn, Co, Zn and Cu which were 10-3.3×10(3) times greater than the average for the rest of the transect. Mussels also showed relatively high trace metal concentrations at the Santa Rosalia stations, but the variability in the spatial distribution was low and had undefined trends. Our results show that, with the exception of Co and Cu, the contamination caused by the copper mine affected sediments to a greater extent than mussels.
对沿加利福尼亚湾西部海岸线 1000 公里长的 15 个站位的近岸沉积物和贻贝中的痕量金属的生物地球化学进行了研究。由于该地区人为影响可忽略不计，沉积物中的痕量金属（Me）总量和富集因子（EF（Me））值较低。然而，圣罗莎莉亚附近过去的铜矿开采导致 Pb、Mn、Co、Zn 和 Cu 的浓度比该剖面其余部分的平均值高 10-3.3×10(3)倍。贻贝在圣罗莎莉亚站位也表现出相对较高的痕量金属浓度，但空间分布的变异性较低，且趋势不明确。我们的结果表明，除 Co 和 Cu 外，铜矿造成的污染对沉积物的影响大于贻贝。
