Gas scavenging coefficients for use in the ISC3 wet deposition/algorithms
The EPA-recommended Industrial Source Complex Model (ISC3) now contains algorithms for estimating wet deposition of both gases and particulate matter. This ISC3 release requires the user to supply both gas scavenging coefficients for gases and scavenging ratios for particles. A method for estimating scavenging ratios for particles has been provided in the ISC3 user manual. However, similar information has not been provided for gas scavenging, and such information is not readily available for many of the plume constituents of interest. Gas scavenging by precipitation is strongly influenced by both the physical properties of the pollutant and the nature of the scavenging meteors. The authors have previously derived, from theoretical considerations and typical raindrop size distributions, a wet scavenging coefficient for mercury chloride. In this paper, they generalize this derivation to provide scavenging coefficients for a number of soluble gases of environmental interest, including HF. This paper is expected to be of use to those elements of the modeling community applying ISC3 for wet deposition problems, including health risk assessments.
- OSTI ID:
- 682203
- Report Number(s):
- CONF-980632-; TRN: IM9942%%188
- Resource Relation:
- Conference: 91. annual meeting and exhibition of the Air and Waste Management Association, San Diego, CA (United States), 14-18 Jun 1998; Other Information: PBD: 1998; Related Information: Is Part Of Proceedings of the 91. annual meeting and exhibition. Bridging international boundaries: Clean production for environmental stewardship; PB: [5000] p.
- Country of Publication:
- United States
- Language:
- English
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