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A new method to identify unhealthy levels of nitrogen dioxide could let those at risk take control of their health with cheap, personalised sensors, according to new research by Australian and Chinese scientists.

Nitrogen dioxide contributes to the dangerous smog that lurks over many of the world’s cities, causing serious respiratory problems, among other health issues.

Australian scientist Kourosh Kalantar-zadeh, a professor at RMIT’s Centre for Advanced Electronics and Sensors, told Mashable Australia he helped discover a new use for the material tin disulphide, which could be used as a sensor to read the level of nitrogen dioxide in the air.


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