Air Pollution: Urban Areas

Department for Environment, Food and Rural Affairs written question – answered on 18th March 2022.

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Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what proportion of the overall mass of fine particulate matter (PM2.5) in the major urban areas of southern England in 2020 was rural background concentrations.

Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what proportion of of regional background concentrations of fine particulate matter (PM2.5) in England in 2020 were from (a) ammonium nitrate, (b) ammonium sulphate and (c) organic particles.

Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what proportion of the urban background mass PM2.5 in (a) central and (b) southern UK was made up of secondary particles in 2020.

Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what proportion of the urban background mass PM2.5 in central and southern UK in 2020 was transported from mainland Europe.

Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what the average proportion was of total exposure to concentrations of fine particles (PM2.5) in 2020 for people in each of (a) England (b) Northern Ireland (c) Wales and (d) Scotland from naturally occurring sources such as pollen and sea spray.

Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what the average proportion of total exposure to concentrations of fine particles (PM2.5) was in 2020 for people in each of (a) England (b) Northern Ireland (c) Wales and (d) Scotland that was transported to the UK from other European countries.

Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what the average proportion of total exposure to concentrations of fine particles (PM2.5) in 2020 was for people in each of (a) England (b) Northern Ireland (c) Wales and (d) Scotland from anthropogenic sources in the UK.

Photo of Geraint Davies Geraint Davies Labour, Swansea West

To ask the Secretary of State for Environment, Food and Rural Affairs, what proportion of total mass concentrations of fine particulate matter (PM2.5) in the UK in 2020 was directly attributable to primary emissions of PM2.5 as reported in the National Statistics release published on 14 February 2022.

Photo of Jo Churchill Jo Churchill The Parliamentary Under-Secretary of State for Environment, Food and Rural Affairs

Assessment of fine particulate matter (PM2.5) is undertaken on an annual basis to understand the key sources and contributions to PM2.5 in the UK, as well as to assess compliance with legally binding air quality standards.

Compliance in 2020 was detailed in the Air Pollution in the UK report (2020) published in Sept 2021 (available here: https://uk-air.defra.gov.uk/library/annualreport/). Further analysis is ongoing and a follow up technical modelling report, detailing the source apportionment undertaken for 2020, will be published on our UK Air website in the coming weeks.

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