Development of the relationship between odor intensity and threshold dilution ratio for swine units

被引:9
作者
Chen, YC
Bundy, DS
Hoff, SJ
机构
[1] N Carolina Dept Environm & Nat Resources, Div Air Qual, Fayetteville Reg Off, Fayetteville, NC 28301 USA
[2] Iowa State Univ, Dept Agr & Biosyst Engn, Ames, IA USA
来源
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION | 1999年 / 49卷 / 09期
关键词
D O I
10.1080/10473289.1999.10463882
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The following models of odor intensity for swine units were evaluated: the Weber-Fechner law model, the power law model, the Stevens model, and the Beidler model. Data were collected from four swine rooms (farrowing, finisher, gestation, and nursery) and odor threshold dilution ratios were measured by a panel using a dynamic forced-choice olfactometer. Odor intensity scales were determined by eight panelists using a six-point category scale method. A nonlinear parameter estimation method was used to estimate the parameters in each of the models. The widely used Weber-Fechner law did not adequately fit the data of odor intensity and threshold. Both the power law and the Beidler models described the data effectively, but the Beidler model showed the best fit of the data and was used as the model to represent the relationship between odor intensity and threshold dilution ratio for swine buildings.
引用
收藏
页码:1082 / 1088
页数:7
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