WebOct 14, 2003 · 1.2.2. Total OH Loss Rate Measurement (TOHLM) [18] A new instrument has been developed for Total OH Loss rate Measurements (TOHLM) [Kovacs and Brune, 2001; Kovacs et al., 2003]. A discussion of the OH reactivity measurements in Nashville is presented by Kovacs et al.. WebA new instrument, the total OH loss-rate measurement (TOHLM), directly measures the OH reactivity of air. 9 Measurements of the OH reactivity are obtained with a technique similar to the laboratory kinetics discharge-flow technique. 11,12 A large abundance of OH is introduced through a moveable injector into a flow tube in which a flow of ...
Direct measurements of urban OH reactivity during Nashville SOS …
WebTotal OH Loss Rate Measurement. A new instrument has beendeveloped to measure the total decay rate of OH in ambient air. Theinstrument is based on the discharge flow … Web2828 D. Stone et al.: Measurement of OH reactivity by laser flash photolysis complete knowledge of the total production rate or of the to-tal loss rate. Observations of OH radical concentrations made in con-junction with measurements of OH reactivity (k0 OH /, the to-tal loss rate of OH and the inverse of the OH chemical life- shy birds
BG - Seasonal measurements of total OH reactivity emission rates …
WebSep 10, 2024 · In 1993, William H. Brune conceived for the first time the concept of total OH reactivity as the direct measurement of OH loss rate (Kovacs & Brune, 2001).A few years later, the first measurements of total OH reactivity were performed independently by two … WebOct 15, 2005 · Measurements of OH reactivity (i.e., OH loss rates) in the troposphere are essential for discussing tropospheric OH photochemistry. In July and August 2003, we observed the total OH reactivity in a suburban area of Tokyo. More than 90% of the data of the measured OH loss rates were higher than the calculated values with simultaneously … WebMar 1, 2024 · Atmospheric hydroxyl (OH), hydroperoxy (HO2), total peroxy (HO2 and organic peroxy radicals, RO2) mixing ratios and OH reactivity (first order OH loss rate) were … the pattern of cause and effect翻译