The goal of the Data Explorer is to make our atmospheric measurements accessible, interactive, and useful to a wide audience. These plots allow users to visualize trends in key gases (SO2, NO2, H20, HCHO) and particulate matter (PM) the GTA Toronto. This platform is designed to bridge scientific research and public engagement: researchers can use it to validate models and compare datasets, while policymakers, community organizations, and the public can explore how air pollution varies by time and place.