Centro Interdisciplinario de Ciencias Marinas-Instituto Politécnico Nacional, Av. IPN s/n, colonia Playa Palo de Santa Rita, Apdo postal 592, 23096, La Paz, Baja California Sur, Mexico.
Bull Environ Contam Toxicol. 2013 Mar;90(3):333-7. doi: 10.1007/s00128-012-0923-1. Epub 2013 Jan 1.
To know the environment impact on a harbor of the Santa Rosalía port on the Baja California peninsula, the concentrations of metals (Cd, Co, Cu, Mn, Pb, U and Zn) in harbor sediments were determined for 13 stations and compared with their average upper Earth´s crust abundance. The mean enrichment factors, calculated using Al as a normalizer, were higher than the unity for Ag, Ba, Bi, Cd, Co, Cu, Mn, Ni, Pb, Sb, U, V and Zn. Concentrations of slightly enriched Cd in the sediments are below the effect range low (ERL) sediment quality guidelines value only at three stations. The levels of Pb in the harbor sediments at four stations (1, 6, 9 and 11) are between the ERL (46.7 mg kg(-1)) and the effect range medium (ERM) (218 mg kg(-1)), and Pb content in the rest of the sediment samples is higher than the ERM, demonstrating the high extent of the anthropogenic impact of this metal on the sedimentary environment. The total concentrations of the potentially toxic elements Cu (3,390 ± 804 mg kg(-1)) and Zn (1,916 ± 749 mg kg(-1)) very strongly exceed their ERM, showing a high possibility of toxicological danger for marine biota, living inside or entering the harbor.
为了了解下加利福尼亚半岛圣罗莎莉亚港的环境影响，对 13 个港口沉积物中的金属（Cd、Co、Cu、Mn、Pb、U 和 Zn）浓度进行了测定，并与地球地壳的平均丰度进行了比较。使用 Al 作为归一化值计算得出的平均富集因子高于 Ag、Ba、Bi、Cd、Co、Cu、Mn、Ni、Pb、Sb、U、V 和 Zn 的归一化值。只有在三个站位，沉积物中略富集 Cd 的浓度低于效应范围低值（ERL）沉积物质量指南值。四个站位（1、6、9 和 11）的港口沉积物中 Pb 水平（46.7 mg kg(-1))）介于 ERL（218 mg kg(-1)) 和效应范围中值（ERM）之间，其余沉积物样品中的 Pb 含量高于 ERM，表明该金属对沉积环境的人为影响程度很高。潜在有毒元素 Cu（3,390±804 mg kg(-1)) 和 Zn（1,916±749 mg kg(-1)) 的总浓度非常强烈地超过了 ERM，表明对生活在或进入港口的海洋生物具有很高的毒理学危险可能性。
