Modeling Studies of Ammonia Dispersion and Dry Deposition at Some Hog Farms in North Carolina
Bajwa, KS; Arya, SP; Aneja, VP
| HERO ID | 600797 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Modeling Studies of Ammonia Dispersion and Dry Deposition at Some Hog Farms in North Carolina |
| Authors | Bajwa, KS; Arya, SP; Aneja, VP |
| Journal | Journal of the Air and Waste Management Association |
| Volume | 58 |
| Issue | 9 |
| Page Numbers | 1198-1207 |
| Abstract | A modeling study was conducted on dispersion and dry deposition of ammonia taking one hog farm as a unit. The ammonia emissions used in this study were measured under our OPEN (Odor, Pathogens, and Emissions of Nitrogen) project over a waste lagoon and from hog barns. Meteorological data were also collected at the farm site. The actual layout of barns and lagoons on the farms was used to simulate dry deposition downwind of the farm. Dry deposition velocity, dispersion, and dry deposition of ammonia were studied over different seasons and under different stability conditions using the short-range dispersion/air quality model, AERMOD. Dry deposition velocities were highest under near-neutral conditions and lowest under stable conditions. The highest deposition at short range occurred under nighttime stable conditions and the lowest occurred during daytime unstable conditions. Significant differences in deposition over crop and grass surfaces were observed under stable conditions. [ABSTRACT FROM AUTHOR] Copyright of Journal of the Air & Waste Management Association (1995) is the property of Air & Waste Management Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts) |
| Doi | 10.3155/1047-3289.58.9.1198 |
| Pmid | 18817112 |
| Wosid | WOS:000259516100009 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | SWINE; LIVESTOCK; AMMONIA; NITROGEN compounds; AIR -- Pollution; EMISSIONS; ODORS; ANIMAL industry; NORTH Carolina |
| Is Qa | No |