Industrial Hygiene Report

Paper Summary:

This paper follows the sequence of events as recorded when Professional Services Laboratories responded to a hazardous incident a spill incident at a chemical facility. The spill that occurred involved methanol and was the result of an employee who did not follow recommended procedures in the transfer of the substance from one container to another.

Outline:
Executive Summary
Background
Applicable Standards
Survey Method and Strategy
Survey Findings
Conclusions/ Recommendations

From the Paper:

"Before entering the area to clean up the spill, the emergency crew took LEL readings of the immediate area in accordance with established company protocols for such an incident. The LEL at that time was 4.2, therefore, the area was deemed safe for entry. Meter readings were taken continuously throughout the initial cleanup procedure as a precaution. Reported levels at 10 minutes after clean u p began were at 1.87. At 20 minutes the levels were at .64. At 30 minutes they were below the detection limit. After all sand was cleaned from the contaminated area and properly packaged for disposal at a Resource Conservation and Rcovery Act (RCRA) approved disposal site, no further LEL readings were deemed necessary. "

Sample of Sources Used:

• Colorado Petroleum. Material Safety Data Sheet fro Methanol. http://www.colopetro.com/documents/msww.pdf Accessed March 24, 2007.
• Fires and Explosions in the Canadian Oil and Gas Industry. Case Study Details. Incident # 23 - Methanol Spill Ignited While Preparing to Repair Tank Truck Leak http://www.firesandexplosions.ca/case_studies/case_details.php?id=27 Accessed March 24, 2007.
• Guenier, J. Lhuiller, F., and Muller, J. "Sampling Of Gaseous Pollutants On Silica Gel With 1400 Mg Tubes" Annals. Occupational Hygiene. Vol. 30, No. 1, pp. 103-114, 1986
• JT Baker. Material Safety Data Sheet.(MSDS) - Methyl Alcohol. http://www.jtbaker.com/msds/englishhtml/M2015.htm. Accessed March 24, 2007.
• Malcolm Pirinie, Inc. Evaluation Of The Fate And Transport Of Methanol In The Environment. January 1999. http://www.methanol.org/pdf/evaluation.pdf Accessed March 24, 2007.

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