Laser sniffs out toxic gases from afar: System can ID chemicals in atmosphere from a kilometer away

3 diciembre 2014

Scientists have developed a way to sniff out tiny amounts of toxic gases — a whiff of nerve gas, for example, or a hint of a chemical spill — from up to one kilometer away. The new remote sensing technology can discriminate one type of gas from another with greater specificity than most — even in complex mixtures of similar chemicals — and under normal atmospheric pressure, something that wasn’t thought possible before.