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动物便排放的挥发性有机化合物的化学表征

K M Haider¹, C Focsa², C Decuq³

¹Univ. Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers, Atomes et Molécules, Lille, F-59000, France; Université Paris-Saclay, INRAE, AgroParisTech, UMR EcoSys, 91120, Palaiseau, France.

Journal of environmental management

|June 14, 2024

概括

动物便会排放挥发性有机化合物 (VOC),影响空气质量. 这项研究确定并量化了来自牛,马,绵羊和山羊的VOC,发现牛排放量最高,以氧化化合物为主.

科学领域:

环境化学环境化学
大气科学大气科学
农业科学农业科学

背景情况:

动物便是一种有价值的肥料,也是挥发性有机化合物 (VOC) 的重要来源.
了解肥料中的VOC成分对于评估环境和健康影响至关重要,包括空气污染和气味.
实验室研究补充了准确排放清单的现场测量.

研究的目的:

为了识别和量化各种动物便 (牛,马,绵羊,山羊) 所排放的VOC.
为了确定这些便的不同VOC的排放流.
描述每种肥料类型的独特的VOC档案.

主要方法:

使用大气模拟室与牛,马,绵羊和山羊的实验研究.
使用质子转移反应-四极离子导向-飞行时间质谱法 (PTR-QiTOF-MS) 和热溶解气色谱法-质谱法 (TD-GC-MS) 分析挥发性有机物.
使用PTR-QiTOF-MS量化368种化合物,并通过TD-GC-MS进行补充识别.

主要成果:

确定了多种不同的VOC组,包括含氧,,硫,芳香,和化合物.
奶牛便的VOC排放流量最高,其次是山羊,绵羊和马.
在所有样本中,含氧的VOC占主导地位;牛排放量明显,富含氧和化合物,而山羊显示出含氧和化合物的高排放量.

结论:

该研究提供了一份全面的VOC清单和动物便的排放流量数据.
这些发现突出了作为大气气溶前体的关键气味化合物和VOC.
生成的数据集可以为管理便排放和促进可持续农业的战略提供信息.

关键词:

气体染色学是一种气体染色学.实验室室室内实验实验室室内实验排放的排放量是肥.质子转移反应质谱学质谱学.挥发性有机化合物挥发性有机化合物

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