William P. L. Carter

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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)
The CAMx grid model was used to assess ozone reactivity effects for Carbon Bond (CB4) VOC species and ethane using the CRC-NARSTO database for the July 12-15, 1995 NARSTO-NE episode in the Eastern United States. The ozone sensitivities to emissions changes in NO x , total VOCs, total anthropogenic VOCs, CO, ethane and the 8 CB4 species used to represent(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)
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)
Incremental ozone impacts or reactivities have been calculated for selected organic compounds using a Master Chemical Mechanism (MCMv3.1) and compared with those calculated elsewhere with the SAPRC-07 chemical mechanism. The comparison of incremental reactivities has been completed for 116 organic compounds representing the alkanes, alkenes, aldehydes,(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)
1-Bromo-propane (1-BP) is a replacement for high-end chlorofluorocarbon (HCFC) solvents. Its reaction rate constant with the OH radical is, on a weight basis, significantly less than that of ethane. However, the overall smog formation chemistry of 1-BP appears to be very unusual compared with typical volatile organic compounds (VOCs) and relatively complex(More)
The UCR EPA chamber is a new large indoor environmental chamber constructed at the University of California at Riverside (UCR) under United States EPA funding for the purpose of evaluating gas-phase and secondary aerosol mechanisms for ground-level air pollution. The major characteristics of this chamber, the results of its initial characterization for(More)