A comparison of the predictions of a simple gaussian plume dispersion model with measurements of pollutant concentration at ground-level and aloft |
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| Affiliation: | 1. Department of Industrial and Management Systems Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin, Gyeonggi 17104, South Korea;2. Korea Institute for Industrial Economics & Trade, 370 Sicheong-daero, Sejong-si 30147, South Korea;3. College of Business, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, South Korea |
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| Abstract: | The NOx pollution arising from a nitric acid works has been analysed. Measurements were taken at ground-level using continuous monitors over a 6 month period, and aloft at three heights within the plume using a specially constructed bag sampler. The measured concentrations and σz values have been compared with the predictions of a simple Gaussian plume dispersion model using the Turner (1970) values of σy and σz derived from Pasquill-Gifford stability categories. It was found that ground-level concentrations at 1–2 km distance from the source could be predicted reliably, but that close to the source predicted values of σz were greater than those measured experimentally. |
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