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一种可扩展的被动采样方法,用于量化空气中的过敏原

Lillian M Jones¹, Chamari B A Mampage¹, Thomas M Peters²

¹Department of Chemistry, University of Iowa, 230 North Capitol Street, Iowa City, IA, 52242, USA.

|July 5, 2024

概括

一种新的,廉价的被动采样方法有效地使用光显微镜测量空气中的花粉度. 这种可扩展的方法允许对空气过敏原进行广泛监测,从而改善在各种环境中对暴露风险的评估.

科学领域:

环境科学环境科学
航空生物学航空生物学
过敏研究研究过敏

背景情况:

传统的空气过敏原活性样品采集器因电力需求和维护而受到限制.
空气过敏原度在城市和农村环境中表现出显著的空间变化.
需要具有成本效益和可扩展的方法来进行大规模的空气过敏原监测.

研究的目的:

开发和验证一种廉价,可扩展的被动采样方法,用于确定空气中的花粉度.
为了实现空气过敏原的更广泛的空间测量.
确定有最大的空气过敏原暴露风险的区域.

主要方法:

使用了依赖于粒子在显微镜幻灯片上的重力沉积的被动采样器.
雇佣了一个修改后的达勒姆采样器进行样本采集.
使用光显微镜分析样品并根据沉积速度模型计算花粉度.

主要成果:

被动采样方法与已建立的伯卡德采样方法 (r > 0.99,r = 0.87) 显示出强烈的相关性.
该方法显示高精度,变化系数 (%CV) 为20%和21%.
验证发生在2020年和2021年的拉格韦和树花粉季节.

结论:

经过验证的被动采样方法是准确的,可重复的,并且具有成本效益.
这种方法有助于检查空气中花粉度和空间变异性.
允许更广泛的空间尺度测量,以改善空气过敏原暴露风险评估.

关键词:

空气中的过敏原.空气质量空气质量从被动收集的样本中确定花粉度.图像分析图像分析显微镜的使用方法花粉花粉花粉的花粉

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