Mercury Control Technology Assessment Study of Cosan Chemical Corporation, Carlstadt, New Jersey. Preliminary and Indepth Survey Report for the Site Visits of July 16, 1981 and June 16-17, 1982

摘要

A survey was conducted to assess techniques used to control occupational exposure to mercury (7439976) (Hg) at the Cosan Chemical Corporation (SIC-2869), Carlstadt, New Jersey, in June 1982. Engineering controls which included an enclosed transfer system and scrubbers were generally effective in keeping Hg concentrations below the OSHA standard of 0.10 milligrams per cubic meter (mg/cu.m.); however, Hg concentrations of 0.120 and 0.350mg/cu. m. were found in the reactor room where phenyl-mercuric-acetate (62384) (PMA) was manufactured. The reactor room used scrubbers which were apparently effective in reducing exposure from the filters and the mercuric-oxide (21908532) charging operation. The elevated Hg concentrations were evidently caused by emissions from undetected sources. The bagging room had PMA concentrations of approximately 0.05mg/cu. m. Although a scrubber on the spray dryer was effective in reducing PMA emissions, the bagging operation produced significant quantities of PMA.