TY - RPRT TI - Mercury speciation and microbial transformations in mine wastes, stream sediments, and surface waters at the Almaden Mining District, Spain AU - John E. Gray AU - Mark E. Hines AU - Pablo L. Higueras AU - Isaac Adatto AU - Brenda K. Lasorsa PY - 2004 DO - 10.1021/es040359d UR - https://pubs.usgs.gov/publication/70026451 ID - 70026451 ER -