Tooele ⢠The U.S. Armyâs Dugway Proving Ground plans to release radioactive gas and chlorine next year in separate tests. The radioactive-gas releases are supposed to roughly equal the exposure a person would receive from some X-rays or body scans, according to a presentation given here Thursday. The radiation then is expected to dissipate below naturally occurring levels within 3 miles. As part of the chlorine tests, the Utah Division of Air Quality (DAQ) is requiring Dugway to install monitor... <img src="http://mngislctrib.112.2O7.net/b/ss/mngislctrib/1/H.17--NS/0?&pageName=RSS" height="1" width="1" border="0" alt=""/>