We have located links that may give you full text access.
Simulated reaction of formaldehyde and ambient atmospheric particulate matter using a chamber.
The reaction of HCHO with Beijing winter's real ambient particulate matter (PM) inside a 3.3m(3) Teflon Chamber was conducted in this study. NO2, O3 and H2O gases were removed from the ambient aerosol before entering into the chamber. The decays of HCHO were monitored (acetylacetone spectrophotometry method) during the reactions at different PM number concentrations (Na) and relative humidities (RHs), and the formed particulate formate was detected by IC and XPS techniques. The results showed that when RH was 10%-15%, the decay rate of HCHO in the chamber was higher with the existence of PM from relatively clean days (with number concentration (Na)<200,000particle/L, 0.35-22.5μm) compared to dirty days (Na>200,000particle/L, 0.35-22.5μm). When RH increased to 30%-45%, PM can hardly have significant influences on the decay of HCHO. The formations of formate on the reacted PM were consistent with the HCHO decay rates at different ambient PM Na and RH conditions. This is a first study related to the "real" ambient PM reacted with HCHO and suggested that in the clean and low RH days, PM could be an effective medium for the conversion of HCHO to formate.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app