Ambient Air Radon Monitoring Around Mosaic Riverview’S Phosphogypsum Board Presentation
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Transcript of Ambient Air Radon Monitoring Around Mosaic Riverview’S Phosphogypsum Board Presentation
![Page 1: Ambient Air Radon Monitoring Around Mosaic Riverview’S Phosphogypsum Board Presentation](https://reader033.fdocuments.in/reader033/viewer/2022052623/559c41341a28ab02518b468d/html5/thumbnails/1.jpg)
AMBIENT AIR AMBIENT AIR MONITORING NEAR MONITORING NEAR
MOSAIC’S MOSAIC’S PHOSPHOGYPSUM STACKPHOSPHOGYPSUM STACK
EPC Board Meeting
August 18, 2011
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PHOSPHATE FERTILIZER PHOSPHATE FERTILIZER MANUFACTURING PROCESSMANUFACTURING PROCESS
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DEVELOPMENT OF REGIONAL DEVELOPMENT OF REGIONAL IMPACT (DRI) #242IMPACT (DRI) #242
DRI is a development having a widespread impact on the community
Development Order Specific Condition A.8.a.
Two ambient air dust samplers were placed at Progress Village Middle School and Gibsonton Elementary
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DUST MONITORING SITE MAPDUST MONITORING SITE MAP
Existing Monitoring Stations
Additional Monitoring Stations
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DUST MONITORING RESULTSDUST MONITORING RESULTS
The dust monitoring showed no statistically significant difference in dust concentrations
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RADON MONITORINGRADON MONITORING
Phosphogypsum is stacked near the chemical processing plants
The radioactivity of the stacked phosphogypsum is considered low level
Radon gas is a colorless, odorless gas that emanates from the ground
In 2010, EPC entered into a contract with the Florida Department of Health
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RANDY PENNRANDY PENNEnvironmental Manager
Florida Department of HealthDivision Of Environmental Health
Bureau of Radiation Control
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RADON MONITORING SITE MAPRADON MONITORING SITE MAP
Two rounds of monitoring were conducted
16 sites around the gypstack were selected along with the subject schools and a control site
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MEASUREMENTSMEASUREMENTS Radon study looked at alpha particles and gamma
rays
Measurements were taken for 90 days
Gamma readings were taken at the time of deployment
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CONCLUSIONSCONCLUSIONS The average for both the first and
second deployment at the gypstack is 0.68 pCi/L
Based on the initial study, the results do not indicate any elevated readings at any of the schools
Overall, the sampling periods showed some differences