Officials say almost two-fifths (38%) of particulate matter comes from
domestic wood burners and open fires, which just 7.5% of homes have.
[https://news.sky.com/story/pollution-proposals-aim-to-curb-emissions-from-wood-burning-stoves-11381351 ]
Interesting statistic!
"How you burn wood is important. In London, 69% of people who burn wood
are doing so in open fires, a practice banned in the capital by the
Clean Air Acts of 1956 and 1968. New stoves pollute far less than open
fires, but a recent report found that the limits for Ecodesign wood
burners allow six times more particle pollution than the exhaust of a modern heavy goods vehicle, equivalent to 18 new diesel cars."
via https://www.theguardian.com/environment/2017/oct/08/pollutionwatch-log-f...
Consultation document - https://consult.defra.gov.uk/environmental-quality/clean-air-strategy-co...
" For example, a recent rise in the popularity of
wood burning stoves and open fires is making a
significant contribution to particulate matter - tiny
particles that get into the lungs and blood and are
transported around the body becoming lodged
in the heart, brain and other organs. Like many
other pollutants, particulate matter can have a
short term impact over a single, highly polluted
day or long-term impacts from low-level exposure
over a long period of time. "
"38% of UK primary PM emissions come from burning wood and coal in domestic open fires and solid fuel stoves 9 , 12% comes from road transport (e.g. fuel related emissions and tyre and brake wear) 10 and a further 13% comes from solvent use and industrial processes 11 (e.g. steel making, brick making, quarries, construction). "
https://www.gov.uk/government/consultations/air-quality-draft-clean-air-...