Diffusion tube
Diffusion tubes (sometimes referred to as samplers) are passive devices used in air quality monitoring to measure weekly or monthly average pollutant concentrations.
Ref The HS2 London-West Midlands Environmental Statement, published by the Department for Transport in November 2013.
[edit] Related articles on Designing Buildings Wiki:
- Air quality.
- Air Quality Taskforce.
- At a glance - Indoor air quality.
- BREEAM and air quality.
- BREEAM Indoor air quality plan.
- BREEAM Indoor air quality Ventilation.
- BREEAM Indoor pollutants VOCs.
- BREEAM NOx emissions.
- BSRIA responds to UK Air Pollution Report.
- Bringing a breath of fresh air to the design of indoor environments.
- Indoor air quality.
- Indoor environmental quality.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Communities will be able to build their own clean energy.
Why diversity and inclusion matters for SMEs
CIOB’s D&I Charter shows how practical changes can support long-term growth.
Cut electricity bills to power growth
Coalition sends joint letter to the Chancellor.
Gasholders: a history in pictures. Book review.
Recognition, influence and growth
SocEnv identifies three strategic pillars in new strategy to 2045.
Discover the future of roofing, cladding and insulation.
New guidance for professional practice, cultural change and regulation in social housing.
The heritage of nuclear and conventional power stations.
New measures to stop people being ripped off
Government to protect families from cowboy builders and aggressive bailiffs.
New Futurebuild showcase brings an innovation-first approach.
National Planning Policy Framework
Understanding the 2026 changes.
ECA's public affairs priorities
Member consultation opens to shape priorities for 2027 to 2030.

















