Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, with reference to the Answer of 11 May 2023 to Question 183644 on Air Pollution: Greater London, whether the fraction of mortality attributable to particulate air pollution measured as PM2.5 should be multiplied by the (a) number of deaths from all causes aged 30 years and older and (b) total number of deaths to calculate the number of deaths attributable to PM2.5.

The fraction of mortality attributable to particulate air pollution, measured as PM2.5, for Greater London in 2018, 2019, 2020 and 2021 was provided in the answer of 11 May 2023 to Question 183644. The provided values represented the percentage of annual deaths from all causes in those aged 30 and older attributed to PM2.5.

In estimating the burden of long-term exposure to air pollution mixture in 2019 in the United Kingdom, namely 29,000 to 43,000 deaths for adults aged 30 years old and over, the total number of deaths for that age group was used. A report detailing a methodology that local authorities can use to estimate local mortality burdens associated with particulate air pollution within their area was published by the former Public Health England, now the UK Health Security Agency, in 2014.