Variation of epiphytic bryophyte species distributions, air quality and climate conditions in southern Belgium since 1980

This folder includes 5 files documenting (1) the distribution of epiphytic bryophyte species in 81 4x4km grid-squares in southern Belgium at two time periods between 1980 and 2020, (2) the concentrations in SO2, NO2, O3 and PM10 and (3) the climate conditions at the same time periods,  (4) the average and extreme pollutant concentrations and climate conditions during the 1980-1984, 1990-1994 and 2016-2020 periods, and (5) the average NH3 concentrations measured during the Spring 2021.