The most recent air testing done by the Arkansas National Guard showed no evidence to indicate a potential risk to public health from chemicals in the air from the underground fire burning at the dump site along Trafalgar Road, according the Arkansas Department of Health. Air monitoring was done by the Guard's 61st Civil Support Team on Feb. 26-28 to establish a baseline prior to beginning site remediation, according to a Department of Health news release. The air was monitored for hydrogen sulfide, hydrogen cyanide, carbon monoxide, oxygen percentage and total volatile organic compounds, according to the release. The state received results last week from the state Department of Environmental Quality's testing. None of those air samples showed elevated concentrations of the chemicals, according to a news release.