Unit Operations Approach in Exposure/Release Evaluation for New Chemicals

by Kin F. Wong, EPA, Washington, DC, USA,
M. Lynn Apel, EPA, Washington, DC, USA,

Document Type: Proceeding Paper

Part of: Environmental Engineering


The unit operations approach may also be applied to the estimation of potential exposure and release of toxic materials from the manufacture and/or processing of new chemicals. By characterizing a fundamental set of unit operations and processes in a representative cross-section of industrial segments, data bases and predictive models may be established which can be extrapolated to new chemicals and processes. Few examples are given here to illustrate the variety of approaches used. The examples considered are: inhalation exposure in drumming, dermal exposure, phase separations, and container unloading.

Subject Headings: Chemical processes | Health hazards | Materials processing | Public health and safety | Hazardous substances | Chemicals | Legislation | Toxicity

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