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Hydroxyl radical reactivity at the air-ice interface
Hydroxyl radical reactivity air-ice interface
2010/2/1
Hydroxyl radicals are important oxidants in the atmosphere and in natural waters. They are also expected to be important in snow and ice, but their reactivity has not been widely studied in frozen aqu...
Toward a general parameterization of N2O5 reactivity on aqueous particles: the competing effects of particle liquid water, nitrate and chloride
N2O5 reactivity aqueous particles particle liquid water nitrate chloride
2009/11/19
The heterogeneous reaction of N2O5 on mixed organic-inorganic aerosol particles was investigated using an entrained aerosol flow tube coupled to a custom-built chemical ionization mass spectrometer. L...
Airborne measurement of OH reactivity during INTEX-B
Airborne measurement OH reactivity INTEX-B
2009/3/12
The measurement of OH reactivity, the inverse of the OH lifetime, provides a powerful tool to investigate atmospheric photochemistry. A new airborne OH reactivity instrument was designed and deployed ...
DRIFTS and Knudsen cell study of the heterogeneous reactivity of SO2 and NO2 on mineral dust
DRIFTS Knudsen cell study heterogeneous reactivity SO2 NO2 mineral dust
2009/3/11
The heterogeneous oxidation of SO2 by NO2 on mineral dust was studied using Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and a Knudsen cell. This made it possible to characteri...
The weekend effect within and downwind of Sacramento – Part 1: Observations of ozone, nitrogen oxides, and VOC reactivity
Sacramento ozone nitrogen oxides VOC reactivity
2008/12/23
Day-of-week patterns in human activities can be used to examine the ways in which differences in primary emissions result in changes in the rates of photochemical reactions, and the production of seco...
Ozone production and hydrocarbon reactivity in Hong Kong, Southern China
Ozone production hydrocarbon reactivity Hong Kong Southern China
2008/11/28
Data obtained in Hong Kong during the Hong Kong and the Pearl River Delta (PRD) Pilot Air Monitoring Study in autumn 2002 are analyzed to unravel the relationship between ground-level ozone (O3), poll...
The Comparative Reactivity Method – a new tool to measure total OH Reactivity in ambient air
OH Reactivity ambient air
2008/11/5
Hydroxyl (OH) radicals play a vital role in maintaining the oxidizing capacity of the atmosphere. To understand variations in OH radicals both source and sink terms must be understood. Currently the o...
VOC reactivity in central California: comparing an air quality model to ground-based measurements
VOC reactivity central California air quality model ground-based measurements
2008/10/27
Volatile organic compound (VOC) reactivity in central California is examined using a photochemical air quality model (the Community Multiscale Air Quality model; CMAQ) and ground-based measurements to...