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Simultaneous inboard and outboard, inflight measurements of ultrafine particle concentrations
Aerosol Science and Technology ( IF 5.2 ) Pub Date : 2021-02-22 , DOI: 10.1080/02786826.2021.1880544
Paul I. Williams 1, 2 , Jamie Trembath 3
Affiliation  

Abstract

Inboard and outboard particle number concentrations are reported from 12 flights from the FAAM BAe-146. The data show that the concentrations pre take off and post landing are dominated by external sources. The concentrations in the cabin are generally lower than outside and pre-take off peak after the doors have closed in 75% of cases. In flight cabin events were associated with either ingress of external particles, or particles generated by the airframe. The airframe events were sporadic in nature, and often associated with changing engine conditions. In over 50% of cases, in cabin particle events were observed on approach, with no increase in outboard concentrations. Supporting aerosol composition data showed that non-exhaust, non-airport sources also influence the cabin air quality, including the presence of lubrication oil. The average number concentration exposure was between 6800 and 10,800 cm−3 per flight and, during a fume event, the average organic mass concentration exposure was 5.85 µg m−3 for the flight. The mass concentration exposure and associated average concentration are below UK workplace exposure limits for non-hazardous dusts and PM10 24-h air quality standards.

Copyright © 2021 American Association for Aerosol Research



中文翻译:

同时进行舷内和舷外飞行中超细颗粒浓度的测量

摘要

从FAAM BAe-146的12次飞行中报告了内侧和外侧颗粒数浓度。数据显示,起飞前和着陆后的浓度主要由外部来源决定。在75%的情况下,机舱中的浓度通常低于室外,并且在门关闭后会达到起飞前的峰值。在飞行中,机舱事件与外部粒子的进入或机身产生的粒子有关。机体事件本质上是零星的,通常与发动机状况的变化有关。在超过50%的情况下,进近时观察到了机舱内的颗粒事件,而舷外浓度没有增加。辅助气溶胶成分数据显示,非排气,非机场源也会影响机舱空气质量,包括润滑油的存在。每飞行-3次,并且在发生烟气事件中,该飞行的平均有机物质量浓度暴露为5.85 µg m -3。质量浓度暴露和相关的平均浓度低于英国工作场所对非危险性粉尘和PM 10 24-h空气质量标准的暴露极限。

版权所有©2021美国气溶胶研究协会

更新日期:2021-03-27
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