Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, if he will make an assessment of which internationally recognised (a) guidelines and (b) standards are most effective at protecting public health from outdoor air pollution.

The Government assesses a range of evidence relating to air quality standards on an ongoing basis. The United Kingdom is a founding signatory to the United Nations Economic Commission for Europe Convention on Long Range Transboundary Air Pollution. The Task Force on Health, under the Convention, led by the World Health Organisation Regional Office for Europe provides principal insight for the United Kingdom on guidance and standards on air pollution in relation to health.