Hyperion Energy Center - Air Monitoring Data
The criteria air pollutant concentration data for the Union County air monitoring sites included on the following pages were derived from EPA’s Air Quality Systems (AQS) database using AirData. The data has been available on EPA’s AirData website since July 2009. DENR is providing the same data on our website so the public has easier access. Choose one of the following pollutants to view the data:
In the case where the day indicates “no sample”, it means not enough data was collected that day to determine a valid concentration and in most cases this was the result of equipment failure or the equipment was removed temporarily for repairs or audits.
EPA’s AirData website is available for public use at: http://www.epa.gov/airdata/
AirData is a collection of user-friendly visualization tools for reviewing air quality data. The tools generate maps, graphs, and tables. Currently, the tools access quality assured criteria air pollutant concentration data submitted by the state to the EPA’s AQS database. The criteria air pollutants being collected at the Union County sites include particulate matter (PM10 and PM2.5), sulfur dioxide (SO2), nitrogen oxides (NO2), ozone (O3), and carbon monoxide (CO).
If you access the AirData website, you will need the following air monitoring site information to identify the Union County ambient air monitoring locations. The information identifies the site name; site identification number; general location; and criteria air pollutants being monitored:
UC #1, 461270001, SE of proposed facility, PM10, PM2.5, SO2, NO2, and CO
UC #2, 461270002, NNW of proposed facility, PM10, PM2.5, SO2 and NO2
UC #3, 461270003, NW of proposed facility, O3
In addition to monitoring for the criteria air pollutants, DENR also monitored for air toxic concentrations. The air toxic monitor ran every 6th day and the sample was sent to an EPA contractor for analysis. The EPA contractor analyzed the sample and submitted the results to EPA’s Air Quality Systems database. Currently we have the following air toxic data available. Choose one of the pollutants to view the data:
After collecting three years of data, DENR believed it has sufficient air toxic background data and shut down the air toxic monitor at the end of 2011.