air monitoring program borit site
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Air Monitoring Program BoRit Site. Kristine Matzko, EPA BoRit CAG meeting December 5, 2012. Air Monitoring. EPA performed air monitoring in response to community request Evaluate air quality in community Use data in health assessment Sampled 7 locations - PowerPoint PPT PresentationTRANSCRIPT
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Air Monitoring ProgramBoRit Site
Kristine Matzko, EPABoRit CAG meeting December 5, 2012
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Air Monitoring
• EPA performed air monitoring
– in response to community request
– Evaluate air quality in community
– Use data in health assessment
• Sampled 7 locations
– 6 locations in community and 1 background
– Local business, adult center, church, post office
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Air Monitoring
• Sampled 12 months
– November 2010 to October 2011
– Sampled during every season
• 24 hour sample
– Collected samples on weekdays, weekends
– Collected during dry weather, not after rain
• Collected 14 samples at most locations
– sampled 2 times in August and October 2011
• Collected a total of 98 samples
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Air Monitoring
• Analyze samples - microscope
– high powered electron microscope
– Identify asbestos fibers
• Count fibers - use method called PCME
– Count fibers of a specific length, dimension
– EPA’s method to assess health effects
• Compare results to screening value
– 0.001 structures/cubic centimeter (s/cc)
– EPA’s Asbestos Framework
– Consult with EPA’s risk assessor
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Location PCME – asbestos fibers Date
#1 trail along creek 0.001 s/cc Monday, Sept 12, 2011
#2 post office No detections
#3 church No detections
#4 adult center 0.0008 s/cc Friday, August 12, 2011
#5 business No detections
#6 background No detections
#7 warehouse 0.0008 s/cc Friday, August 12, 2011
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Summary
• Year long monitoring, 98 samples
• 3 detections using the PCME method
• Detections during summer months
– August and September 2011
• The detections at or below the screening value of 0.001 s/cc
• EPA will evaluate the air data further
– Use data in the health assessment