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The reaction of OH and NO(2) to form gaseous nitric acid (HONO(2)) is among the most influential in atmospheric chemistry. Despite its importance, the rate coefficient remains poorly determined under tropospheric conditions because of difficulties in making laboratory rate measurements in air at 760 torr and uncertainties about a secondary channel producing(More)
DISCLAIMER This report has been reviewed by the U. S. Environmental Protection Agency, and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the U. S. Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. ii(More)
proposes a three-year experimental and methods and model development program aimed at reducing the uncertainties in estimating the impacts of architectural coatings emissions on photochemical ozone formation and other measures of air quality. This will include several components. Methods developed under a previous project for assessing ozone impacts of low(More)
Because of its intended use in regulatory applications, the California Air Resources Board contracted for peer reviews to be carried out on the SAPRC-07 chemical mechanism that was recently developed by the author. The reviewers were internationally recognized scientists representing various areas of relevant expertise and consisted of R. A brief summary of(More)
The high cost of ozone and particulate pollution and the regulations needed to abate them means that an ability to reliably predict the effects of emissions on air quality has significant economic value. Because of the complexity of the chemical processes involved, data from environmental chambers are essential to assuring that these models give correct(More)
The QInsight Group assume no responsibility for the views or opinions expressed in this paper. The authors bear full responsibility for the views and opinions expressed in this paper. ABSTRACT A number of articles have explored analysts' earnings estimates, analysts' forecasting ability and the reaction of stock prices to earnings announcements. The concern(More)
This project was aimed at developing improved and lower-cost alternative experimental procedures for evaluating chemical mechanisms for predicting ozone impacts of volatile organic compounds (VOCs). More precise measurements of effects of VOCs on OH radicals in chamber experiments could be obtained if 1,3,5-trimethylbenzene is used instead of m-xylene as(More)