Date published
The aim of the study was to help identify the reason for a noticeable change in particulate matter (PM) concentrations; and also provide certainty in measured PM concentrations for authorities seeking to revoke PM10 air quality management areas (AQMAs). Due to the significant impact of particulate matter on human health, it is crucially important that PM10 AQMAs are not revoked unless it is certain that the objectives are not being exceeded. The initial pilot study was carried out over a 12-month period between January 2020 and January 2021.