questionText: To ask the Secretary of State for Environment, Food and Rural Affairs, which (a) cities, (b) zones and (c) agglomerations in England exceeded the nitrogen dioxide annual mean limit value in 2023.
answerText: Defra uses a combination of national-scale modelling and on the ground monitoring to assess nitrogen dioxide (NO2) concentrations in England each year. Evidence shows that NO2 concentrations have reduced substantially in recent years, however a reporting ...
heading: Nitrogen Dioxide: Pollution Control