The Phyto-sensor toolkit accompanies a workshop and walk held in the City of London. The event investigated the ways in which vegetation can improve or respond to air quality. Resources are included in this toolkit to aid in the further development of clean air gardens.
Plants are organisms that are continually sensing and changing environments. Some plants are especially effective at taking up pollutants, whether by absorbing gaseous pollutants through their stomata, drawing in heavy metals through their roots, or channelling and depositing particulates in their leaves.