Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, pursuant to the Answer of 26 March 2025 to Question 39816 on Nitrogen Dioxide: Pollution Control, whether his answer is consistent with the 2023 National Compliance Assessment.

The answer to Question 39816 was based on a combination of data from the 2023 national compliance assessment and additional local monitoring data that does not typically meet the requirements for formal national reporting but was included in the response for completeness. The national assessment is designed to meet the location and data quality requirements of the Air Quality Standards Regulations 2010 which seek to represent general exposure to air pollution, rather than local pollution hotspots. For this reason, the answer to Question 39816 captured some additional locations where nitrogen dioxide concentrations in 2023 were above 40µg/m³.