Mercury dispersal to arroyo and coastal sediments from abandoned copper mine operations, el Boléo, Baja California.
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.
Kot
Fyodor
F
Department of Civil and Environmental Engineering, Agricultural Experimental Center, Technion-Israel Institute of Technology, Haifa 32000, Israel. fskot@tx.technion.ac.il
Shumilin
Evgueni
E
Rodríguez-Figueroa
Griselda Margarita
GM
Mirlean
Nicolai
N
D002947:Cities; D003300:Copper / Q000032:analysis*; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D008800:Mexico; D008906:Mining; D014874:Water Pollutants, Chemical / Q000032:analysis*
D014874:Water Pollutants, Chemical; D003300:Copper