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Vertical profiling of fine particulate matter and black carbon by using unmanned aerial vehicle in Macau, China
Liu, Ben1; Wu, Cheng2,3; Ma, Nan4; Chen, Qi5; Li, Yaowei6; Ye, Jianhuai7; Martin, Scot T.7; Li, Yong Jie1
2020-03-20
Source PublicationScience of the Total Environment
ISSN0048-9697
Volume709Pages:136409
Abstract

An unmanned aerial vehicle (UAV) equipped with miniature monitors was used to study the vertical profiles of PM (particulate matter with a ≤2.5-μm diameter) and black carbon (BC) in Macau, China, from the surface to 500 m above ground level (AGL). Twelve- and 11-day measurements were conducted during February and March 2018, respectively. In total, 46 flights were conducted between 05:00 and 06:00 AM Local Time (LT). The average concentrations of PM and BC were significantly lower in March (40.1 ± 17.9 and 2.3 ± 2.0 μg m, respectively) when easterly winds prevailed, compared with those in February (69.8 ± 35.7 and 3.6 ± 2.0 μg m, respectively) when northerly winds dominated. In general, PM concentrations decreased with height, with a vertical decrement of 0.2 μg m per 10 m. BC concentrations exhibited diverse vertical profiles with an overall vertical decrement of 0.1 μg m per 10 m. Meteorological analyses including back-trajectory analysis and atmospheric stability categorization revealed that both advection and convection transports may have notable influences on the vertical profiles of PM pollutants. The concentration of PM pollutants above the boundary layer was lower than that within the layer, thus exhibiting a sigmoid profile in some cases. In addition, the lighting of firecrackers and fireworks on February 16 (first day of the Chinese New Year) resulted in the elevated concentrations of PM and BC within 150 m AGL. The takeoff of a civil flight on February 10 may have resulted in a substantial increase in the PM concentrations from 80.8 (±2.1) μg m at the ground level to 119.2 (±9.3) μg m at a height of 330 m. Although the results are confined to a height of 500 m AGL, the current study provides a useful dataset for PM vertical distributions, complementing the spatiotemporal variations by ground-based measurements.

KeywordBlack Carbon Particulate Matter Pm2.5 Unmanned Aerial Vehicle Vertical Profile
DOI10.1016/j.scitotenv.2019.136109
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000512281700069
PublisherELSEVIER, RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
Scopus ID2-s2.0-85076711788
Fulltext Access
FWCI1.9876028
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorLi, Yong Jie
Affiliation1.Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, China
2.Institute of Mass Spectrometry and Atmospheric Environment, Jinan University, Guangzhou, 510632, China
3.Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangzhou, 510632, China
4.Center for Pollution and Climate Change Research (APCC), Institute for Environmental and Climate Research, Jinan University, Guangzhou, China
5.State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Science and Engineering, Peking University, Beijing, China
6.School of Engineering and Applied Sciences, Harvard University, Cambridge, United States
7.School of Engineering and Applied Sciences & Department of Earth and Planetary Sciences, Harvard University, Cambridge, United States
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Liu, Ben,Wu, Cheng,Ma, Nan,et al. Vertical profiling of fine particulate matter and black carbon by using unmanned aerial vehicle in Macau, China[J]. Science of the Total Environment,2020,709:136409.
APA Liu, Ben,Wu, Cheng,Ma, Nan,Chen, Qi,Li, Yaowei,Ye, Jianhuai,Martin, Scot T.,&Li, Yong Jie.(2020).Vertical profiling of fine particulate matter and black carbon by using unmanned aerial vehicle in Macau, China.Science of the Total Environment,709,136409.
MLA Liu, Ben,et al."Vertical profiling of fine particulate matter and black carbon by using unmanned aerial vehicle in Macau, China".Science of the Total Environment 709(2020):136409.
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