Air Exposure Guidelines for Chemical Warfare Agents – A Brief Review of Occupational Exposure Limits

PDF

Authors
  1. Bjarnason, S.G.
Corporate Authors
Defence R&D Canada - Suffield, Ralston ALTA (CAN)
Abstract
Chronic exposure guidelines and standards for civilian workers exposed to chemical warfare agents (CWA) have been developed. The Worker Population Limit (WPL) is similar to other occupational guidelines in that it refers to a time-weighted average (TWA) exposure assuming 8 hours/day for 5 days/week while the General Population Limit (GPL) is similar to ambient environmental guidelines (24 hours/day; 7 days/week). In addition, Short-Term Exposure Limits (STEL; 15 minute TWA exposure) have been suggested. The limits that are the most relevant for unprotected workers are the WPL and the STEL. The specific CWA of interest are those currently used for training purposes (sulphur mustard (HD); sarin (GB); VX). The relevant limits are: WPL: 4 × 10-4 mg/m3 for HD; 3 × 10-5g mg/m3 for GB; 1 × 10-6 mg/m3 for VX STEL: 3 × 10-3 mg/m3 for HD; 1 × 10-4 mg/m3 for GB; 1 × 10-5 mg/m3 for VX. The WPL and STEL limits have been developed by the CDC National Institute for Occupational Safety and Health and by the U.S. Army Center for Health Promotion and Preventive Medicine. The evaluation of relevant toxicological studies by panels of experts, in some cases using different risk assessment methodologies, has resulted in a set of exposure limits that represent the best available.

Il y a un résumé en français ici.

Keywords
Chemical warfare agents;CWA;Occupational;Chronic;Occupational health and safety
Report Number
DRDC-SUFFIELD-TM-2008-061 — Technical Memorandum
Date of publication
01 Feb 2008
Number of Pages
26
DSTKIM No
CA030778
CANDIS No
529421
Format(s):
CD ROM

Permanent link

Document 1 of 1

Date modified: