Supplementary data for 'Indoor PM_2.5, PM₁₀, CO₂, temperature and humidity and outdoor PM_2.5, PM₁₀, temperature and humidity measurements collected from 30 homes in three blocks of social housing prior to energy efficiency retrofit works plus two years of communal central heating gas use for the three site blocks'.

A dataset of indoor (living room) PM_2.5, PM₁₀, CO₂, temperature and humidity and outdoor PM_2.5, PM₁₀, temperature and humidity measurements collected from 30 homes in three blocks of social housing prior to energy efficiency retrofit works. Hourly mean measurements are provided. Raw data as downloaded from the monitors and cleaned data as used for data analysis are provided along with details of manipulations. Sampling took place between November 2022 and March 2023. Communal central heating gas use for the three site blocks for 2021 and 2022 are also included. Gas use is provided as 30 minute means in kWh.