Analysis of available ambient and stationary source VOC and Polycyclic Aromatic Hydrocarbon (PAH) sampling results to verify emission rate estimates for sources in Nogales, Sonora, Mexico
- Powers Engineering, Escondido, CA (United States)
- Arizona Department of Environmental Quality, Phoenix, AZ (United States)
- Radian Corp., Sacramento, CA (United States)
The Arizona Department of Environmental Quality (ADEQ) is currently funding a project to develop comprehensive hazardous air pollutant (HAP) emissions inventories for the cross-border communities of Nogales, Arizona and Nogales, Sonora, Mexico. Ambient VOC and PAH data were collected in downtown Nogales, Sonora in July 1994 by the ADEQ. This paper addresses the detailed analysis of the ambient criteria pollutant and HAP data performed by the project team. The ambient data evaluation serves as a vital cross-check of the accuracy of the criteria pollutant and HAP emission estimates developed for each source type included in the emissions inventory. The data show that benzene, toluene, xylene, ethylbenzene (BTXE) and aldehydes are the dominant VOC HAPs in the ambient air. The quantity of BTXE in the ambient air, and ratio of these compounds to each other, implies that mobile sources are the principal source of BTXE in Nogales, Sonora. Significant levels of olefinic VOCs were also detected.
- OSTI ID:
- 466196
- Report Number(s):
- CONF-9606185--
- Country of Publication:
- United States
- Language:
- English
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