Passive NO2 Palmer diffusion tubes - these are "small plastic tubes containing a chemical reagent to absorb the pollutant to be measured directly from the air. In the case of Palmes-type nitrogen dioxide diffusion tubes, the absorbent used is triethanolamine (TEA). Stainless-steel mesh grids at the closed end of the tube are coated with a water-based or acetone-based solution of this absorbent.
Verify Your Email
Check your email (including spam!) and click on the provided link.
Until then, you won't be able to earn badges, or access other members-only features, but you can still browse thousands of projects and events!
