OSH 4308 Unit II Project - Copy.doc - Running Head UNIT II...

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Running Head: UNIT II PROJECT 1 Unit II Project Columbia Southern University
UNIT II PROJECT 2 Background On January 27, 2020, Be Safe Consulting, Inc. came into a contract with Acme Manufacturing Co. to perform the following services: (a) air sampling and analysis for potential Iron Oxide exposure during welding operations. (b) Conduct ventilation measurements on local exhaust ventilation in welding booths and hazardous materials storage area. (c) Determine if the ventilation system used in the hazardous materials storage area meets federal and insurance carrier requirements. (d) Assess ventilation system capabilities in the foundry room and recommend changes to improve the operation of system and employee safety. BSCI was contracted to perform industrial hygiene services, which include the systems above, and provide guidance to ensure Acme Manufacturing Co. continues to meet and comply with federal regulations and standards. BSCI was not contracted to design engineering controls if any deficiencies in the systems are found that need to be corrected. Methodology Air sampling for Iron Oxide was conducted on March 2, 2020, on six employees during welding operations using SKC Sidekick Pumps, Deluxe Model. Each air sampling pump was calibrated to a flow rate of 1 liter per minute (lpm) with an SKC Model 375-0550 check-mate Flowmeter per NIOSH 7300: Elements by ICP (Nitric/Perchloric Acid Ashing) Method (NIOSH, 2019). Air sampling pumps were calibrated before and after each use by BSCI employees. Air sampling equipment and calibrator are also calibrated annually in accordance with manufacturer recommendations. Atmospheric conditions were recorded by using a Kestrel Model 3000HS Handheld Heat Stress Weather Meter before and after each sampling event. Each air sampling pump was placed in a specified area that would not interfere with work according to the
UNIT II PROJECT 3 employee. A three-foot Tygon tube with an SKC mixed cellulose ester (MCE) filter preloaded cassette, 0.8 μm, 37 mm was attached with a clip to the collar to each employee’s breathing zone. Air sampling results are expressed in milligrams per meter cubed (mg/m 3 ). Findings The results of the air sampling for Iron Oxide conducted at each welding booth are located below: Table 1: Welding Booth Air Sampling Results for Iron Oxide Fumes Worker Location Date Measured Concentration (8-hr TWA) OSHA PEL Exceeded OSHA PEL Anne Welding Booth 1 03/02/2020 3.2 mg/m 3 8.8 mg/m3 No Frank Worldly Booth 2 03/02/2020 2.7 mg/m 3 8.8 mg/m3

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