Residential College | false |
Status | 已發表Published |
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 Publication | Science of the Total Environment |
ISSN | 0048-9697 |
Volume | 709Pages: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. |
Keyword | Black Carbon Particulate Matter Pm2.5 Unmanned Aerial Vehicle Vertical Profile |
DOI | 10.1016/j.scitotenv.2019.136109 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Environmental Sciences & Ecology |
WOS Subject | Environmental Sciences |
WOS ID | WOS:000512281700069 |
Publisher | ELSEVIER, RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS |
Scopus ID | 2-s2.0-85076711788 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING |
Corresponding Author | Li, Yong Jie |
Affiliation | 1.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 Affilication | Faculty of Science and Technology |
Corresponding Author Affilication | Faculty 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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