Inventory of Ozone Precursor VOCs from Organic Solvents Used in Residential Workplaces and Assessment of Ozone Formation Contribution

Abstract

An experimental and modeling study was conducted to assess the ground-level atmospheric ozone impacts of several types of consumer product compounds Environmental chamber experiments were carried out for the representative amines 2-amino-2-methyl-1-propanol (AMP), ethanolamine, isopropyl amine and t-butyl amine and also for d-limonene. AMP and t-butyl amine were found to inhibit ozone formation, but the others enhanced ozone, and most were found to significantly enhance formation of secondary particle matter (PM). Methods to estimate mechanisms for amines that were qualitatively consistent with the chamber data were developed. However, the amine chamber data were not useful for quantitative valuation because the amount of amine available for gas-phase reaction could not be measured, and appeared to be significantly less than the amount injected. Estimates of atmospheric ozone impacts for the amines are also very uncertain because the amount of amines removed by reaction with HNO 3 in the atmosphere cannot be predicted. The chamber data obtained for d-limonene were well simulated by the existing d-limonene mechanism.Representations of the atmospheric reactions of for 15 amines and 30 other types of consumer product VOCs were added to the SAPRC-07 mechanism and its MIR and other reactivity scale tabulations, which are included with this report.iii

Analysis of VOCs Emitted from Small Laundry Facilities: Contributions to Ozone and Secondary Aerosol Formation and Human Risk Assessment

“…For the dry-cleaning process, a petroleum-based organic solvent was used. Figure 2 shows the comparison of the organic solvent release test [ 47 ] with the results of this study (in %). The emission concentrations of the alkane-based species from the dry-cleaning process were determined as well: nonane (35%), decane (31%), undecane (13%), and dodecane (1%); all accounted for 82% of the total emission concentration.…”