These files contain the concentration of pollutants indoors & outdoors across 6 sites. The data includes measurements from one office (08 October 2022 – 28 December 2022), one school (17 July 2023 – 25 July 2023), three homes in Solihull (08 August 2023 – 23 August 2023), Birchwoods (17 September 2023 – 02 October 2023), and Rubery (22 October 2023 – 06 November 2023), as well as one hospital (15 December 2023 – 19 December 2023). Pollutants measured: Black carbon, carbon monoxide, nitrogen oxides, particulate matter (PM1, PM2.5, PM4, PM10), ozone and VOCs.