With air pollution responsible for around 3.4 million deaths annually, there are still many gaps in global monitoring. The use of remote sensing and other technology, including citizen science, can revolutionize our understanding of air pollution and policies to address it. The interactive infographic below examines the gaps in data and understanding for four health-relevant air pollutants (particulate matter, ozone, mercury and persistent organic pollutants) and describes what is needed to design the next-generation indicators to address them. A team of student designers and programmers at Yale created the interactive based on research that was published in a special issue of Atmospheric Environment in 2013.

Read more: What’s in Your Air? [Interactive]

To view this interactive on the website of Yale’s Environmental Performance Index click here.