Anomalous Trace Element Composition of Coastal Sediments near the Copper Mining District of Santa Rosalía, Peninsula of Baja California, Mexico

Shumilin, Evgueni; Figueroa, Griselda Margarita Rodríguez; Bermea, Ofelia Morton; Lounejeva, E; Hernández, E.; Meza, G. Durga Rodríguez

doi:10.1007/s001280000123

Cited by 24 publications

(15 citation statements)

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“…As a result, local beach sands and coastal marine sediments are strongly contaminated by Cu, Co, Zn and other heavy metals (Shumilin et al, 2000;2005). However, the impacted zones and the penetration depth into the sedimentary column are ostensibly limited in size (Rodríguez Figueroa, 2010;Rodríguez et al, 1998;Shumilin et al, 2000aShumilin et al, , 2000b.…”

Section: Introductionmentioning

confidence: 99%

Vertical profiles of cobalt and zinc in marine sediments of the Santa Rosalía mining region, Gulf of California, Mexico.

Shumilin

Figueroa

Sapozhnikov

et al. 2013

Journal of Iberian Geology

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Section: Introductionmentioning

confidence: 99%

Vertical profiles of cobalt and zinc in marine sediments of the Santa Rosalía mining region, Gulf of California, Mexico.

Shumilin

Figueroa

Sapozhnikov

et al. 2013

Journal of Iberian Geology

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“…Anomalously high metal contents have been reported for the coastal sediments, including elements representing both the regionally elevated background concentration of Cu and the anthropogenic components associated with the mining activity (Co, Cu, Mn, Pb and Zn) (Rodríguez Figueroa 2004;Rodríguez-Figueroa et al 1998;Shumilin et al 2000).…”

Section: Methodsmentioning

confidence: 99%

“…Weathering of abandoned metal ore mines may produce a noticeable Hg halo that can be traced by examination of the sediments in the local drainage basin. While metal mine pollution has been extensively studied in temperate and cold regions, the impact of mining activities on terrestrial and marine ecosystems of arid and semi-arid regions has received much less attention (Shumilin et al 2000).…”

mentioning

confidence: 99%

Mercury Dispersal to Arroyo and Coastal Sediments from Abandoned Copper Mine Operations, El Boléo, Baja California

Kot

Shumilin

Figueroa

et al. 2008

Bull Environ Contam Toxicol

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Evidence for mercury dispersal in an arid coastal region of central Baja California (Mexico) suggests that abandoned copper mining operations are a noticeable source of mercury in the environment. There is a generally elevated level of mercury in alluvium of arroyos throughout the mining district (0.14-0.18 mg kg -1 ). In the first several dozen meters surrounding two of the biggest mines, mercury levels range from 0.26 to 3.16 mg kg -1 , forming a halo of anomalously high concentrations. The coastal marine sediments, particularly those close to the copper smelter in the town of Santa Rosalía, also display some mercury enrichment.

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“…Gyres and filaments transport cold and chlorophyll-rich waters from east to west (Navarro-Olache et al 2004). Abnormally high sediment concentrations of Cu, Co, and Zn were found in the vicinity of Santa Rosalía, Baja California Sur (Central Gulf) (Shumilin et al 2000). A comparison of the elements in tympanic bulla of sea lions revealed that Co and Zn were maximum in the Central Gulf.…”

Section: Distribución De Elementos Traza En El Golfo De Californiamentioning

confidence: 99%

“…Los giros y filamentos transportan aguas frías y ricas en clorofila desde el este al oeste (Navarro-Olache et al 2004). En los alrededores de Santa Rosalía, Baja California Sur (Golfo Central), se encontraron concentraciones anormalmente altas de Cu, Co, y Zn (Shumilin et al 2000). Comparando con el contenido de elementos traza en bula timpánica de lobo marino, el Co y el Zn fueron máximos en Golfo Central.…”

Section: Pollution Situation In Each Regionunclassified

Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

Szteren

Aurioles‐Gamboa

2013

Cienc. Mar.

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As a top predator, California sea lions (Zalophus californianus) can be used as sentinels to record ecosystem conditions because of the trace metals that bioaccumulate in their tissues and are biomagnified in the trophic webs. The concentration of 11 trace elements (Al, As, Cd, Co, Cu, Fe, Hg, Ni, Pb, Se, and Zn) was measured in California sea lion skulls from four regions of the Gulf of California (Mexico): Northern Gulf, Ángel de la Guarda, Central Gulf, and Southern Gulf. The aims of this study were (1) to determine and compare the mean concentration of trace elements among the four regions, and (2) to estimate the pollution situation of each region using the more toxic trace elements. The elements found in higher concentration in sea lion bone were Al (overall mean of 73.70 µg g–1) and Zn (60.78 µg g–1). Only the concentration of As and Hg showed significant differences among regions: As was higher in the Central Gulf than in Ángel de la Guarda and the Northern Gulf, while Hg was higher in the Northern Gulf and Ángel de la Guarda than in the Central and Southern Gulf. The comparative analysis of the pollution situation indicated that the Central Gulf was the most affected by As and Cd, and the Northern Gulf and Ángel de la Guarda by Hg. Regions with different trace element concentrations may reflect different feeding habits and oceanographic conditions, and are congruent with other regional patterns suggested for the Gulf of California.

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Anomalous Trace Element Composition of Coastal Sediments near the Copper Mining District of Santa Rosalía, Peninsula of Baja California, Mexico

Cited by 24 publications

References 0 publications

Vertical profiles of cobalt and zinc in marine sediments of the Santa Rosalía mining region, Gulf of California, Mexico.

Vertical profiles of cobalt and zinc in marine sediments of the Santa Rosalía mining region, Gulf of California, Mexico.

Mercury Dispersal to Arroyo and Coastal Sediments from Abandoned Copper Mine Operations, El Boléo, Baja California

Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

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