Wood burning reintroduces lead poisoning in US
6 hours ago
- #Wood Heating
- #Lead Toxicity
- #Air Pollution
- Wood heating reintroduces lead into local air, as found by a systematic study from University of Massachusetts Amherst, analyzing particle pollution in US towns.
- The research, conducted over seven winters, shows a direct relationship between wood-burning particles (indicated by potassium) and increased lead levels in the air, especially strong in the Rocky Mountains.
- Lead concentrations from wood burning are below US legal limits but still harmful, as any lead exposure is neurotoxic and poses risks at all life stages, with sources including soil uptake by trees.
- In the UK, lead particles measured in winter are often attributed to old lead paint on waste wood, but the study suggests lead originates from the wood itself, meaning any wood burning can increase exposure.
- The study highlights that wood fuel use, while nostalgic, negatively impacts air quality and public health, with combustion temperatures in stoves high enough to release lead into smoke.