Environ. Sci. Technol. 2009, 43, 1305–1309
Dimethylmercury in Coastal Upwelling Waters, Monterey Bay, California C H R I S T O P H E R H . C O N A W A Y , * ,† FRANK J. BLACK,† M E L A N I E G A U L T - R I N G O L D , †,‡ J. TIMOTHY PENNINGTON,§ FRANCISCO P. CHAVEZ,§ AND A. RUSSELL FLEGAL† Department of Microbiology and Environmental Toxicology, University of California at Santa Cruz, 1156 High Street, Santa Cruz, California 95064, Department of Chemistry, University of Otago, Union Place West, Dunedin, New Zealand, and Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, California 95039
Received September 24, 2008. Revised manuscript received December 8, 2008. Accepted December 30, 2008.
Depth profiles of dimethylmercury (DMHg) concentration were determined at nearshore to offshore sites in Monterey Bay, California. The onset of spring upwelling in the bay was accompanied by increases in DMHg concentrations. Profiles show DMHg increasing gradually with depth in fall and winter from
