Why detecting methane is difficult but crucial work
Source: BBC
Christine RoTechnology ReporterHelen GebregiorgisHandheld devices can detect methane and other gasesIn and around Washington DC, volunteers and activists have been walking through streets and homes to see how healthy the air is.They're armed with industry-grade monitors that detect the presence of several gases. The devices look a bit like walkie-talkies.But they are equipped with sensors that reveal the extent…
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