For more historical data and current live-site statistics, go to wy.visnet.com.
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UPPER GREEN RIVER BASIN – The highest ozone measurements on March 7 and March 8 showed up at the Boulder site in the Upper Green River Basin, when the Wyoming Air Quality Division warned of possible ozone exceedances and health impacts.
On Tuesday, March 7, the Boulder monitoring station recorded these high one-hour ozone levels of 73, 75 and 74 parts per billion (ppb). The 8-hour rolling average reached 63 5o 66 ppb between 5-8 p.m.
On Wednesday, March 8, the Boulder station reported even higher 1-hour ozone levels, from 70 ppb at 2 p.m. to almost 80 ppb at 4 p.m.
For more historical data and current live-site statistics, go to wy.visnet.com.
