I have completed two degrees at the University of Brighton, BSc in Environmental Sciences and MRes in Atmospheric Science, whilst being a part of the Centre for Earth Observation Science. My undergraduate research focused on changes to tropospheric ozone chemistry during covid-19 lockdowns in urban, suburban, and rural settings in the UK, with the findings supporting the call for emission reduction targets which consider localised tropospheric chemistry and subsequent impacts on secondary pollutant formation. During my MRes degree, I helped to collect, ratify, and analyse data from a range of instruments at the Brighton Atmospheric Observatory, including the installation and preliminary assessment of a MAX-DOAS instrument. This data will contribute to the Integrated Research Observation System for Clean Air (OSCA) campaign, providing novel MAX-DOAS measurements and a unique urban-coastal setting to supplement the NERC supersites of Manchester, Birmingham, and London. My project during this year assessed seasonal variation of primary and secondary air pollutants at the urban-coastal background Brighton Atmospheric Observatory site. The application of MAX-DOAS measurements comparative to established long path DOAS concentrations and Sentinel-5P TROPOMI column densities provided insight into the suitability of this data for use in air quality assessments.