TY - RPRT TI - Arsenic in groundwater: a summary of sources and the biogeochemical and hydrogeologic factors affecting arsenic occurrence and mobility AU - Julia L. Barringer AU - Pamela A. Reilly PY - 2013 DO - 10.5772/55354 UR - https://pubs.usgs.gov/publication/70042994 ID - 70042994 ER -