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Particulates Not Otherwise Regulated. PNOC is a term given to a variety of dusts that <br /> may not cause fibrosis or systemic effects. At high concentrations, otherwise nontoxic <br /> particulates have been associated with the occasionally fatal condition know as alveolar <br /> proteinosis. High concentration of finely divided dusts and powders can also be explosive. At <br /> lower concentrations, the dust can inhibit the clearance of dust from the lung by decreasing <br /> the mobility of the alveolar macrophages. The airborne PEL is 10 mg/m' for PNOC total <br /> dust and 5.0 mg/m' for dust small enough to enter the lower respiratory tract. <br /> TRAINING REQUIREMENTS <br /> All BC staff and subcontractor employees working on site have completed training in hazard <br /> recognition and basic health and safety issues as required by the occupational safety and health <br /> regulations contained in 29 CFR 1910.120 (e). In addition, each BC employee and subcontractor <br /> employee will be familiar with the requirements of this SSHP, and will participate in site <br /> activity and safety briefings conducted by the SSO. <br /> PERSONAL PROTECTIVE EQUIPMENT <br /> Based on the hazard analysis for this project, the following PPE will be required and used. <br /> Changes to these specified items of PPE will not be made without the approval of the SSO. <br /> 1. Hard hat <br /> 2. Steel-toed, chemical-resistant, safety boots <br /> 3. Nitrile gloves and liners <br /> 4. Safety glasses <br /> 5. Ear plugs, depending on noise levels. <br /> PPE requirements will be upgraded if site conditions warrant. Hard hats, safety boots, and <br /> safety glasses must meet American National Standards Institute (ANSI) specifications. <br /> Level C is not authorized for this project. See the guidelines for suspension of work below. <br /> SUSPENSION OF WORK <br /> Due to the fact that this is not a hazardous waste site and hazardous exposures are not <br /> anticipated air monitoring will not be performed. However, work shall be suspended when: <br /> ❑ Initial surveys suggest presence of buried containers or unidentifiable unnatural material <br /> (excluding utilities). <br /> ❑ Unnatural discoloration of soil is noticed. <br /> P:\20000\20587\SSHP Ri.doc Page 7 <br />