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Air Quality reports
Date updated: 23/09/2025Contact the Air Quality Team
Air Quality Annual Status reports
The City of London Corporation completes an Annual Status Report (ASR) in accordance with London Local Air Quality Management (LLAQM) requirements. The ASR details progress with actions to improve air quality and long-term air pollution trends in the Square Mile.
The City is a declared Air Quality Management Area (AQMA) for annual mean and 1-hour concentrations of Nitrogen dioxide (NO2), and 24-hour concentrations of Particulate Matter (PM10).
Due to the declared AQMA, the City Corporation is required to complete an Air Quality Action Plan (AQAP) to address the area of poor air quality. The AQAP is incorporated within the current City of London Air Quality Strategy 2025-30.
Air Quality Annual Status Report 2024 PDF (1.2MB)
Date submitted: 23/09/25Air Quality Annual Status Report 2023 PDF (2MB)
Date submitted: 25/09/24Air Quality Annual Status Report 2022 PDF (2MB)
Date submitted: 30/06/22Air Quality Annual Status Report 2021 (1MB)
Date submitted: 10/08/23Air Quality Annual Status Report 2020 PDF (2MB)
Date submitted: 11/01/22Copies of previous Annual Status Reports can be obtained directly from the City Air team.