As a part of the Lichen_ART project, founded by the Arts Council Ireland I had a chance to monitor the air quality in the Vale of Clara Nature Reserve for nitrogen dioxide (NO2) and sulphur dioxide (SO2), using diffusion tubes. The source of NO2 is mostly fuel combustion coming from industry and vehicles. With sunlight and volatile organic compounds, it is involved in ground-level ozone formation, which causes damage to plants and is harmful to human health. SO2 pollution can