Question follow-through · 39816

Nitrogen Dioxide: Pollution Control

To ask the Secretary of State for Environment, Food and Rural Affairs, when each (a) city, (b)(b) zone and (c) agglomeration in England which exceeded the nitrogen dioxide annual mean limit value in 2023 will comply with that limit.

answeredDepartment for Environment, Food and Rural Affairs

About this written question

A written question asks a government minister for information in writing. Parliament publishes the question and any answer.

Answering body
Department for Environment, Food and Rural Affairs
Tabled
20 Mar 2025
Target answer date
24 Mar 2025
Answer
26 Mar 2025 · 6 calendar days after tabling

Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.

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Recorded timeline

  1. 20 Mar 2025

    Question tabled

    To ask the Secretary of State for Environment, Food and Rural Affairs, when each (a) city, (b)(b) zone and (c) agglomeration in England which exceeded the nitrogen dioxide annual mean limit value in 2023 will comply with that limit.

  2. 24 Mar 2025

    Target answer date

    Date supplied by the official written-questions record.

  3. 26 Mar 2025

    Answer published

    An answer was published; the current text is shown with its later correction below.

  4. 12 Apr 2025

    Answer corrected

    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 ...

Open official record

Official data retrieved 28 Sept 2026.

Later records

Possible follow-up questions

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Unreviewed candidateSame MP and department; topic relationship is unreviewed

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26 Mar 2025 · To ask the Secretary of State for Environment, Food and Rural Affairs, what steps his Department is taking to reduce concentrations for pollutants in ambient air once the relevant limit value has been achieved.

Strong linkSame MP, department and exact heading

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26 Mar 2025 · To ask the Secretary of State for Environment, Food and Rural Affairs, whether concentrations of nitrogen dioxide are allowed to exceed the annual mean limit value once achieved throughout a zone or agglomeration.

Strong linkSame MP, department and exact heading

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Unreviewed candidateSame MP and department; topic relationship is unreviewed

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