Dioxin registry report for Amchem Products, Incorporated, Ambler, Pennsylvania, report no. IWS-117-21.
An industrial hygiene survey was conducted at Amchem Products, Inc., Ambler, Pennsylvania. This company produced and/or formulated 2,4,5- trichlorophenoxyacetic-acid (2,4,5-T) esters and amines from 1949 through 1979. Other chemical products were also manufactured and formulated at the site. Information was gathered concerning the facility, its processes, its workforce, its personnel records, its medical records, and analytical 2,3,7,8-tetrachlorodibenzo-p-dioxin (1746016) (TCDD) data for its products. Personnel records contained a detailed work history listing each department and job title held by an employee. Departments and job titles with potential exposure to 2,4,5-T were identified. There were 258 workers who had had assignments with potential 2,4,5-T exposure. Medical and worker compensation records were available for all 258 workers. Based on the information gathered pertaining to the operation of the 2,4,5-T ester production and formulation processes and to the work histories, the authors conclude that there is enough information to construct a TCDD exposure matrix for this site for the years from 1953 through 1979.
Division of Surveillance, Hazard Evaluations and Field Studies, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. IWS-117-21, 12 pages, 10 references