Question to the Department for Environment, Food and Rural Affairs:
To ask the Secretary of State for Environment, Food and Rural Affairs, what percentage contribution did (a) pollen, (b) sea spray and (c) other naturally occurring sources make to average concentrations of PM10 in the UK in 2020.
Assessment of fine particulate matter (PM10) is undertaken on an annual basis to understand the key sources and contributions to PM10 in the UK.
Analysis is ongoing and results for 2020 are yet to be published. Results for 2019 are available here:
https://uk-air.defra.gov.uk/assets/documents/reports/cat09/2102111100_2019_PCM_technical_report.pdf