Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.1957s&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 10, p. 1957-1960
Physics
10
Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Pollution-Urban And Regional
Scientific paper
The heterogeneous loss of NO2, HNO3, NO3/N2O5, and HO2/HO2NO2 on soot aerosol was investigated in a large aerosol chamber for interaction times of up to several days. By fitting a detailed model to the measured time profiles of the trace gas concentrations in the presence/absence of soot aerosol, the following reaction probabilities have been deduced at 294 K and <10 ppm H2O (in parentheses: at 50% r.h.): γ(NO2)<=4×10-8 γ(HNO3->NO2)<=3×10-7 γ(NO3)<=3×10-4(<=10-3) γ(N2O5,hydrolysis)=(4+/-2)×10-5((2+/-1)×10-4) γ(N2O5,reduction)=(4+/-2)×10-6 γ(HO2)<=10-2 γ(HO2NO2)<=10-5. These results were adopted in a series of box model calculations for four-day summer smog episodes, probing a wide range of NO emission rates. The 2nd day ozone maxima were reduced up to 10% in the presence of 20 μg m-3 soot aerosol, mainly due to the heterogeneous loss of HO2.
Kamm S.
Möhler Orren
Naumann K.-H.
Riemer Nicole
Saathoff Harald
No associations
LandOfFree
The loss of NO2, HNO3, NO3/N2O5, and HO2/HOONO2 on soot aerosol: A chamber and modeling study does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The loss of NO2, HNO3, NO3/N2O5, and HO2/HOONO2 on soot aerosol: A chamber and modeling study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The loss of NO2, HNO3, NO3/N2O5, and HO2/HOONO2 on soot aerosol: A chamber and modeling study will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-934808