Pong detector

Krishna Persaud and colleagues at the University of Manchester, UK, have developed a remote sensor for monitoring foul odors emerging from landfill and waste-water treatment sites. The new device makes manual sampling and human sniffers redundant by allowing real-time measurements of low concentration odorous gases to be detected. "Ultimately, this device has the potential to create a much healthier environment which will benefit both local communities and waste management companies by alerting them to the build up of bad odours and enabling them to ensure monitor methane emissions remain at a safe level," says Persaud.