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Physical, chemical, and cell toxicity properties of mature/aged particulate matter (PM) trapped in a diesel particulate filter (DPF) along with the results from freshly produced PM of a diesel engine
Wong, Pak Kin1; Ghadikolaei, Meisam Ahmadi1; Chen, Shou Hao1; Fadairo, Adebayo Afolabi1; Ng, Kar Wei2; Lee, Simon Ming Yuen3; Xu, Jin Cheng2; Lian, Zhen Dong2; Li, Lin3; Wong, Hang Cheong1; Ning, Zhi4; Gali, Nirmal Kumar4; Zhao, Jing1
2022-07
Source PublicationJournal of Hazardous Materials
ISSN0304-3894
Volume434
Abstract

The lifetime and efficiency of diesel particulate filters (DPFs) strongly depend on the proper and periodic cleaning and servicing. Unfortunately, in some cases, inappropriate methods are applied to clean the DPFs, e.g., using air compressors without proper disposal procedures which can have negative impacts on human health, the environment, and DPF's efficiency. However, there is no information available about the properties of this kind of PM. This research is therefore presented to explore the physicochemical and toxicity properties of aged PM trapped in a DPF (using compressed air for PM sampling) employing STEM, SEM, EDS, Organic Carbon Analyzer, TGA/DSC, and Raman Spectrometer for investigating the physicochemical properties, and assays of cell viability, cellular reactive oxygen species (ROS), interleukin-6, and tumor necrosis factor-alpha (TNF-α) for investigating the toxicity properties. Also, analyses from fresh PM samples from the diesel vehicle at two engine speeds are presented. It is found that at a certain/fixed PM number/mass for all three samples tested, the PM from DPF compared with the fresh PM can have both positive (particularly having the lowest water-soluble total carbon ratio) and negative impacts on human health (particularly having the highest cell death rate of 13.4%, ROS, and TNF-α) and the environment.

KeywordAir Pollution Diesel Vehicles Fresh And Mature Particulate Matter Hazardous Materials Human Health And The Environment
DOI10.1016/j.jhazmat.2022.128855
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000793534300004
Scopus ID2-s2.0-85128183020
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Document TypeJournal article
CollectionDEPARTMENT OF PHARMACEUTICAL SCIENCES
Faculty of Science and Technology
Institute of Chinese Medical Sciences
INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
DEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Affiliation1.Department of Electromechanical Engineering, University of Macau, Taipa, Macao
2.Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao
3.Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao
4.Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Wong, Pak Kin,Ghadikolaei, Meisam Ahmadi,Chen, Shou Hao,et al. Physical, chemical, and cell toxicity properties of mature/aged particulate matter (PM) trapped in a diesel particulate filter (DPF) along with the results from freshly produced PM of a diesel engine[J]. Journal of Hazardous Materials,2022,434.
APA Wong, Pak Kin,Ghadikolaei, Meisam Ahmadi,Chen, Shou Hao,Fadairo, Adebayo Afolabi,Ng, Kar Wei,Lee, Simon Ming Yuen,Xu, Jin Cheng,Lian, Zhen Dong,Li, Lin,Wong, Hang Cheong,Ning, Zhi,Gali, Nirmal Kumar,&Zhao, Jing.(2022).Physical, chemical, and cell toxicity properties of mature/aged particulate matter (PM) trapped in a diesel particulate filter (DPF) along with the results from freshly produced PM of a diesel engine.Journal of Hazardous Materials,434.
MLA Wong, Pak Kin,et al."Physical, chemical, and cell toxicity properties of mature/aged particulate matter (PM) trapped in a diesel particulate filter (DPF) along with the results from freshly produced PM of a diesel engine".Journal of Hazardous Materials 434(2022).
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