Rassegna bibliografica

Journal of Occupational and Environmental Hygiene. Vol. 11, Iss. 5, May 2014

Retrospective Assessment of Exposure to Chemicals for a Microelectronics and Business Machine Manufacturing Facility


A retrospective exposure assessment was performed for use in a health outcomes study of a facility manufacturing circuit boards, business machines, and other equipment during the years 1969–2002. A matrix was developed identifying chemical use by department-year based on company-provided information. Use of six chemical agents (fiberglass, lead, methylene chloride, methyl chloroform, perchloroethylene, and trichloroethylene) and six chemical classes (acid-base, aromatic hydrocarbons, chlorinated hydrocarbons, other hydrocarbons, chlorofluorocarbons, and metals), and general (including unspecified) chemicals was identified. The matrix also contained an assignment for each department-year categorizing the potential for use of chemicals as negligible, intermittent/incidental, or routine. These department-based exposure matrix data were combined with work history data to provide duration of potential chemical use for workers. Negligible, intermittent/incidental or routine extent-of-chemical-use categories comprised 42.6%, 39.4%, and 17.9%, respectively, of total person-years of employment. Cumulative exposure scores were also developed, representing a relative measure of the cumulative extent of potential exposure to the six chemical agents, six chemical classes, and general (including unspecified) chemicals. Additionally, the study period was divided into manufacturing eras showing trends in chemical use, and showing that process use of trichloroethylene and methylene chloride ended in the mid-1980s and the mid-1990s, respectively. This approach may be useful in other assessments addressing a variety of chemicals, and with data constraints common to retrospective chemical exposure studies.


chlorinated solvents, circuit board manufacture, exposure matrix, exposure score, occupational exposure, perchloroethylene, substrate production, trichloroethylene

Articoli correlati che potrebbero interessarti

Assessment of Exposure to Perchloroethylene and its Clinical Repercussions for 50 Dry-Cleaning Employees

Journal of Occupational and Environmental Hygiene. Vol. 12, Iss. 11, November 2015

Health Care Workers’ Knowledge, Perceptions, and Behaviors Regarding Antineoplastic Drugs: Survey From British Columbia, Canada

Journal of Occupational and Environmental Hygiene. Vol. 12, Iss. 10, October 2015

DNA damage in B and T lymphocytes of farmers during one pesticide spraying season

Vol. 88, Iss. 7, Oct 2015