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Inflammatory and oxidative stress responses of healthy elders to solar-assisted large-scale cleaning system (SALSCS) and changes in ambient air pollution: A quasi-interventional study in Xi'an, China
Qiu, Hong1; Niu, Xin-Yi2,3; Cao, Jun-Ji4,5; Xu, Hong-Mei6; Xiao, Shun7; Zhang, Ning-Ning4; Xia, Xi3; Shen, Zhen-Xing6; Huang, Yu4,5; Lau, Gabriel Ngar-Cheung1,8; Yim, Steve Hung-Lam1,8,9; Ho, Kin-Fai1,3
Corresponding AuthorCao, Jun-Ji(cao@loess.llqg.ac.cn) ; Ho, Kin-Fai(kfho@cuhk.edu.hk)
2022-02-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume806Pages:8
AbstractAn outdoor solar assisted large-scale cleaning system (SALSCS) was constructed to mitigate the levels of fine particulate matter (PM2.5) in urban areas of Xi'an China, providing a quasi-experimental opportunity to examine the biologic responses to the changes in pollution level. We conducted this outdoor SALSCS based real-world quasiinterventional study to examine the associations of the SALSCS intervention and changes in air pollution levels with the biomarkers of systemic inflammation and oxidative stress in healthy elders. We measured the levels of 8-hydrox-2-deoxyguanosine (8-OHdG), Interlukin-6 (IL-6). as well as tumor necrosis factor alpha (TNF-alpha) from urine samples, and IL-6 from saliva samples of 123 healthy retired participants from interventional/control residential areas in two sampling campaigns. We collected daily 24-h PM2.5 samples in two residential areas during the study periods using mini-volume samplers. Data on PM10, gaseous pollutants and weather factors were collected from the nearest national air quality monitoring stations. We used linear mixed-effect models to examine the percent change in each biomarker associated with the SALSCS intervention and air pollution levels, after adjusting for time trend, seasonality, weather factors and personal characteristics. Results showed that the SALSCS intervention was significantly associated with decreases in the geometric mean of biomarkers by 47.6% (95% confidence interval: 16.5-67.2%) for 8-OHdG, 66% (31.0-83.3%) for TNF-alpha, 41.7% (0.2-65.9%) and 43.4% (13.6-62.9%) for urinary and salivary IL-6, respectively. An inter-quartile range increase of ambient PM 2 . 5 exposure averaged on the day of the collection of bio-samples and the day before (34.1 mu g/m(3)) was associated, albeit non-significantly so, with 22.8%-37.9% increases in the geometric mean of these biomarkers. This study demonstrated that the SALSCS intervention and decreased ambient air pollution exposure results in lower burden of systemic inflammation and oxidative stress in older adults. (C) 2021 Elsevier B.V. All rights reserved.
KeywordSolar-assisted large-scale cleaning system Biomarker Inflammation Oxidative stress Quasi-interventional study
DOI10.1016/j.scitotenv.2021.151217
WOS KeywordBEIJING OLYMPICS ; INDOOR PARTICLES ; EXPOSURE ; BIOMARKERS ; FILTRATION ; ASSOCIATION ; CREATININE ; CHILDREN ; DAMAGE ; PANEL
Indexed BySCI ; SCI
Language英语
Funding ProjectKey projects from the Shaanxi Government ; Chinese Academy of Sciences ; Chinese University of Hong Kong[4930744]
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationKey projects from the Shaanxi Government ; Chinese Academy of Sciences ; Chinese University of Hong Kong
WOS SubjectEnvironmental Sciences
WOS IDWOS:000740225300008
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17376
Collection粉尘与环境研究室
中国科学院气溶胶化学与物理重点实验室
Corresponding AuthorCao, Jun-Ji; Ho, Kin-Fai
Affiliation1.Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Hong Kong, Peoples R China
2.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Peoples R China
3.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Peoples R China
5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian, Peoples R China
6.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Peoples R China
7.Shaanxi Normal Univ, Sch Geog & Tourism, Xian, Peoples R China
8.Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong, Peoples R China
9.Nanyang Technol Univ, Asian Sch Environm, Singapore, Singapore
Recommended Citation
GB/T 7714
Qiu, Hong,Niu, Xin-Yi,Cao, Jun-Ji,et al. Inflammatory and oxidative stress responses of healthy elders to solar-assisted large-scale cleaning system (SALSCS) and changes in ambient air pollution: A quasi-interventional study in Xi'an, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,806:8.
APA Qiu, Hong.,Niu, Xin-Yi.,Cao, Jun-Ji.,Xu, Hong-Mei.,Xiao, Shun.,...&Ho, Kin-Fai.(2022).Inflammatory and oxidative stress responses of healthy elders to solar-assisted large-scale cleaning system (SALSCS) and changes in ambient air pollution: A quasi-interventional study in Xi'an, China.SCIENCE OF THE TOTAL ENVIRONMENT,806,8.
MLA Qiu, Hong,et al."Inflammatory and oxidative stress responses of healthy elders to solar-assisted large-scale cleaning system (SALSCS) and changes in ambient air pollution: A quasi-interventional study in Xi'an, China".SCIENCE OF THE TOTAL ENVIRONMENT 806(2022):8.
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