Leveraging Environmental data for Air Pollution exposure assessment in Epidemiology (LEAP-Epi) Team and South African Low-Cost Sensor Inter-Comparison Campaign (LCS-SA) Team (2021) “Commentary: Opportunities for the application of low-cost sensors in epidemiological studies to advance evidence of air pollution impacts on human health”, Clean Air Journal, 31(1). doi: 10.17159/caj/2021/31/1.11219.