Emerging investigator series: the<i>red sky</i>: investigating the hurricane Ophelia Saharan dust and biomass burning aerosol event

Wyche, Kevin; Ricketts, Hugo; Brolly, Matthew; Smallbone, Kirsty

doi:10.1039/d1ea00052g

Cited by 3 publications

(2 citation statements)

References 75 publications

(170 reference statements)

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“…Particulate matter (PM) emitted from biomass burning is an important primary source of atmospheric pollution (Daskalakis et al, 2022;Ni et al, 2017;Wang, Gemayel, et al, 2020), having significant effects on air quality, global climate and human health (Chen et al, 2018;Shao et al, 2016;Wyche et al, 2022;Zhang et al, 2022). In China, the direct burning of straws is the main way to dispose of straws, which can help the growth of the next generation of plants (Xu et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Fresh organic and soot particles from crop straw burning: Morphology, composition and size distribution

Li,

Shao,

Wang

et al. 2023

Geological Journal

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Particulate matter from biomass burning is considered to be one of the major sources of air pollution in China. To examine the characteristics of the particles emitted from the burning of crop straw, an open burning experiment is designed. Individual particles are collected in the flaming and smouldering stages, and analysed by individual particle analyses represented by high‐resolution transmission electron microscopy equipped with the energy‐dispersive X‐ray spectrometer. Five types of particles are identified, namely, pure organic particle, organic particle‐K (OP‐K), tar ball, K‐rich and soot particles. Of these, the OP‐K particles have the highest relative number percentage in all analysed particles in both the flaming and smouldering stages. Interestingly, the microscopic morphology of organic particles is completely different in the flaming and smouldering stages, being near‐spherical in the flaming stage and gel‐like in the smouldering stage. According to the elemental compositions, most of OP‐K particles contained potassium compounds in the form of KCl and K2SO4. High combustion efficiency and temperature promote the formation of crystal structure, resulting in the onion‐like microstructure of soot particles. Apparently, the soot microstructure is a fingerprint feature that helps identify combustion sources. In addition, the particles emitted in the flaming stage are smaller than those in the smouldering stage, implying that high temperature combustion tends to be associated with high combustion efficiency. The relationship between burning temperatures and particle sizes can help to understand the emission of particles from crop straw burning and find new ways to solve the problems caused by straw burning. The results of this study can provide more detailed ‘fingerprint’ characteristics of the particulate matter emitted from biomass‐burning sources, and an understanding of their potential impact on the atmospheric environment.

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Section: Introductionmentioning

confidence: 99%

Fresh organic and soot particles from crop straw burning: Morphology, composition and size distribution

Li,

Shao,

Wang

et al. 2023

Geological Journal

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“…Nevertheless, it can be said that there is a direct relationship between the occurrence of these extreme events in the desert, and the increase in recorded PM levels regarding outdoor air quality [22]. As indoor air quality derives, mainly, from ambient (and thus, outdoor) air, it can be expected that these events will also influence indoor PM levels, but the nature of effects on indoor air quality remains to be investigated, particularly with regard to the recorded increases per size range of PM [23].…”

Section: Introductionmentioning

confidence: 99%

Influence of an Extreme Saharan Dust Event on the Air Quality of the West Region of Portugal

Gomes

Esteves

Rente³

2022

Gases

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This paper describes how an extreme Saharan dust event that took place in March 2022 affected the Iberian Peninsula and was noticed not only by the outdoor air quality monitoring stations measuring PM2.5 and PM10 but also by indoor air monitoring systems in Fatima, central Portugal. The observed particulate matter concentrations clearly show the influence that such an event has on the indoor air quality inside buildings and that the magnitude of that influence is also dependent on the specific characteristics of the buildings, mainly the ventilation conditions, as should be expected. Therefore, this study alerts us to the necessity of integrating indoor and outdoor air quality monitoring systems to achieve automated air conditioning systems capable of efficiently controlling both temperature and air cleanliness.

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Ambient dust pollution with all-cause, cardiovascular and respiratory mortality: A systematic review and meta-analysis

Pouri,

Karimi,

Kolivand

et al. 2024

Science of The Total Environment

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Emerging investigator series: thered sky: investigating the hurricane Ophelia Saharan dust and biomass burning aerosol event

Abstract: On 16th October 2017 ex-hurricane Ophelia passed over the UK, bringing with it a unique mixture of particulates which caused the sky to turn a dramatic red colour.

Cited by 3 publications

References 75 publications

Fresh organic and soot particles from crop straw burning: Morphology, composition and size distribution

Fresh organic and soot particles from crop straw burning: Morphology, composition and size distribution

Influence of an Extreme Saharan Dust Event on the Air Quality of the West Region of Portugal

Ambient dust pollution with all-cause, cardiovascular and respiratory mortality: A systematic review and meta-analysis

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