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首页> 外文期刊>Atmospheric environment >Characterization of gaseous pollutant and particulate matter emission rates from a commercial broiler operation part I: Observed trends in emissions
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Characterization of gaseous pollutant and particulate matter emission rates from a commercial broiler operation part I: Observed trends in emissions

机译：商用肉鸡生产过程中气态污染物和颗粒物排放速率的特征第一部分：观察到的排放趋势

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This paper characterizes the emission rates of size fractionated particulate matter, inorganic aerosols, acid gases, ammonia and methane measured over four flocks at a commercial broiler chicken facility. Mean emission rates of each pollutant, along with sampling notes, were reported in this paper, the first in a series of two. Sampling notes were needed because inherent gaps in data may bias the mean emission rates.rnThe mean emission rates of PM_(10) and PM_(2.5) were 5.0 and 0.78 g day~(-1) [Animal Unit, AU]~(-1), respectively, while inorganic aerosols mean emission rates ranged from 0.15 to 0.46 g day~(-1) AU~(-1) depending on the season. The average total acid gas emission rate was 0.43 g day~(-1) AU~(-1) with the greatest contribution from nitrous and nitric acids and little contribution from sulfuric acid (as SO_2).rnAmmonia emissions were seasonally dependent, with a mean emission rate of 66.0 g day~(-1) AU~(-1) in the cooler seasons and 94.5 g day~(-1) AU~(-1) during the warmer seasons. Methane emissions were relatively consistent with a mean emission rate of 208 g day~(-1) AU~(-1).rnThe diurnal pattern in each pollutant's emission rate was relatively consistent after normalizing the hourly emissions according to each daily mean emission rate. Over the duration of a production cycle, all the measured pollutants' emissions increased proportionally to the total live mass of birds in the house, with the exception of ammonia.rnInterrelationships between pollutants provide evidence of mutually dependent release mechanisms, which suggests that it may be possible to fill data gaps with minimal data requirements. In the second paper (Roumeliotis, T.S., Dixon, B.J., Van Heyst, B.J. Characterization of gaseous pollutants and particulate matter emission rates from a commercial broiler operation part II: correlated emission rates. Atmospheric Environment, 2010.), regression correlations are developed to estimate daily mean emission rates for data gaps and, using the normalized hourly diurnal patterns from this paper, emission factors were generated for each pollutant.
机译：本文描述了在商业肉鸡场的四个鸡群中测得的大小颗粒物，无机气溶胶，酸性气体，氨气和甲烷的排放速率。本文报告了每种污染物的平均排放率以及采样记录，这是两个系列中的第一个。需要采样说明，因为数据中的固有差距可能会偏向平均排放率。rnPM_（10）和PM_（2.5）的平均排放率分别为5.0和0.78 g day〜（-1）[动物单位，AU]〜（- 1），而无机气溶胶的平均排放量则取决于季节，范围为0.15至0.46 g day〜（-1）AU〜（-1）。平均总酸性气体排放量为0.43 g·day〜（-1）AU〜（-1），其中亚硝酸和硝酸的贡献最大，而硫酸（以SO_2的贡献）却很少。在较冷的季节平均排放率为66.0 g day〜（-1）AU〜（-1），在较温暖的季节平均排放率为94.5 g day〜（-1）AU〜（-1）。甲烷排放量与208 g day〜（-1）AU〜（-1）的平均排放量相对一致。rn根据每个日均排放量对小时排放量进行归一化后，每种污染物的排放量的日变化模式相对一致。在生产周期的整个过程中，除氨之外，所有测得的污染物排放均与禽舍中的总活体质量成比例增加。rn污染物之间的相互关系提供了相互依赖的释放机制的证据，这表明可能是可以用最少的数据需求来填补数据空白。在第二篇论文中（Roumeliotis，TS，Dixon，BJ，Van Heyst，BJ，商业肉鸡操作的气态污染物和颗粒物排放率表征第二部分：相关排放率。大气环境，2010年），回归相关性被开发为估计数据缺口的日平均排放率，并使用本文归一化的每小时小时模式，为每种污染物生成排放因子。

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