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Gas/Vapor Monitoring Procedures - <br /> The greatest potential hazards to safety and health at this site <br /> include: <br /> 1) Exposure to chemical vapors - through inhalation <br /> 2) -Exposure to chemical contamination - through skin <br /> contact and ingestion <br /> 3) Fire hazards due to flammable vapors <br /> Ongoing air monitoring during project tasks will provide data to <br /> ensure that vapor concentrations are within acceptable ranges and <br /> .will provide adequate selection criteria for respiratory and <br /> dermal protection. <br /> * If PID/FID readings exceed 100ppm, an air-purifying <br /> respirator with organic vapor cartridges must be worn <br /> by all site workers within any area where monitoring <br /> results exceed 100ppm. <br /> * If PID/FID readings exceed 750ppm, level B protection <br /> will be required. Personnel must leave the site <br /> immediately and contact the Site Safety Officer or the <br /> Health and Safety Manager for further instructions. <br /> * Respirator cartridges will be changed once per day as a <br /> minimum. This can be accomplished at the end of the <br /> work day during respirator decontamination. If odor <br /> breakthrough is detected while wearing the respirator <br /> or breathing becomes difficult, change cartridges <br /> immediately. <br /> MSDS. INFORMATION <br /> Material Safety Data Sheets , (MSDS) on all chemical substances <br /> encountered at the site shall be made available to all personal <br /> . (including subcontractors) working at the site. These MSDS 's <br /> shall be enclosed. within this site safety plan in Appendix E. <br /> For emergency situations not specifically addressed by this site <br /> safety plan, refer to MSDS recommendations for action <br /> information. <br /> 17 <br />