Linde Remedial Action Project
Air Monitoring DataAir sample data are being collected with high volume samplers installed at eleven locations around the perimeter of the Praxair facility. The samplers are placed at locations that represent the outer perimeter of the entire site and the inner perimeter of the contaminated areas. Prior to excavation, background air monitoring data were collected at monitoring stations one through ten from October 1999 through June 2000. Background air monitoring data were collected at monitoring station 11 in January of 2002. Samples were sent off-site for analyses using alpha spectroscopy. Average background (baseline) readings were calculated from the background data for each radiological isotope. During the excavation, a weekly composite sample is collected from each high volume perimeter air sampler. The weekly composite samples are composited into a monthly sample. The monthly composite sample is analyzed isotopically using alpha spectroscopy. A summary of the monthly data results is provided below. In addition, the alpha spectroscopy results for radium-226, thorium-230, and uranium-238 are shown below for each individual air sampler. Monthly Air Monitoring Data 2010 Monthly Air Monitoring Data 2009 Monthly Air Monitoring Data 2008 Monthly Air Monitoring Data 2007 Monthly Air Monitoring Data 2006 Monthly Air Monitoring Data 2005 Monthly Air Monitoring Data 2004 Monthly Air Monitoring Data 2003 Monthly Air Monitoring Data 2002 Monthly Air Monitoring Data 2001 Monthly Air Monitoring Data 2000 For each perimeter air sampler the annual dose was calculated for the years 2000, 2001, and 2002. There were no pre-operational dose calculations from January through June 2000, the 2000 spreadsheet contains the dose for 6 months rather than an annual dose. 2003 Annual Dose for Each Air Sampler 2002 Annual Dose for Each Air Sampler |