Atmospheric Pollution Research最新文献_第10页

Evaluating the role of tree flora in air pollution mitigation and heavy metals accumulation near brick kilns

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-31 DOI: 10.1016/j.apr.2025.102436

Akshay Kumar Singh, Subhalaxmi Behera, Jatin Kumar Choudhary, Sushil Kumar Shukla

{"title":"Evaluating the role of tree flora in air pollution mitigation and heavy metals accumulation near brick kilns","authors":"Akshay Kumar Singh, Subhalaxmi Behera, Jatin Kumar Choudhary, Sushil Kumar Shukla","doi":"10.1016/j.apr.2025.102436","DOIUrl":"10.1016/j.apr.2025.102436","url":null,"abstract":"<div><div>The tree's efficiency in mitigating air pollution offers a long-term and sustainable solution. The current study assessed the air pollution tolerance index (APTI) and anticipated performance index (API) of selected tree species to identify the most tolerant species along with effectiveness in accumulating heavy metals (HMs) and dust within their foliage near brick kilns. Among all the species, M. indica showed the highest APTI score ranges between (24.95 and 19.05) and the lowest was recorded in D. sissoo (9.41–12.78) throughout the sites during both seasons. Based on API, M. indica is an excellent to best performer throughout the site during both seasons. The highest Dust Capturing Capacity (DCC) was observed in S. cumini (0.37–1.70 mg/cm2) and M. indica (0.33–1.48 mg/cm2), while the lowest was in D. sissoo (0.12–0.57 mg/cm2). P. guajava has shown the highest metal accumulation index (MAI), ranging between 2.69 and 4.63 throughout the sites during both seasons. The Pearson correlation coefficient (PCC) showed that ascorbic acid (AA) (R2 = 0.966) has a strong positive correlation (PC) with APTI among all parameters. The findings demonstrated that pollutants released from brick kilns cause alterations in the biochemical and physiological characteristics of trees. M. indica can be recommended for plantation in polluted environments as it showed a high APTI score. D. sissoo and P. guajava are good phytoextractors for Cd, Pb, and Zn, and M. indica for Cu. So, these species can be recommended as bioindicators for particular metals.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102436"},"PeriodicalIF":3.9,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Natural discharge of carbon from the extremely arid land: The mode and amount of CO2 emission based on earth-air exchange

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-31 DOI: 10.1016/j.apr.2025.102437

Hongshou Li , Fei Li , Shunren Wang

{"title":"Natural discharge of carbon from the extremely arid land: The mode and amount of CO2 emission based on earth-air exchange","authors":"Hongshou Li , Fei Li , Shunren Wang","doi":"10.1016/j.apr.2025.102437","DOIUrl":"10.1016/j.apr.2025.102437","url":null,"abstract":"<div><div>Carbon dioxide (CO2) emission is a critical cause of global warming. At present, the quantity of CO2 emitted by land is mainly assessed in terms of concurrent soil respiration. It is unclear whether there are any background terrestrial sources of CO2. According to the closed system model, earth-air (the air in the vadose zone) and atmospheric air are widely exchanged at the land's surface due to the barometric pumping effect. In order to calculate the amount of CO2 released from the extremely arid region, an inventive device was utilized to monitor the amount of earth-air and CO2 flowing. The findings demonstrate that the concentration of CO2 in the earth-air rises when atmospheric pressure falls and it is proportionate to the earth-air flow. The CO2 emitted from the land is positively correlated with temperature, amplitude of atmospheric fluctuations, and thickness and porosity of the vadose zone. CO2 continuously migrates upwards driven by barometric pumping. Emission of CO2 from land is widespread due to earth-air exchange. The total CO2 emission varies with the season, exhibiting a ‘γ-shaped’ profile over the course of a year. On a daily timescale, the CO2 flow varies in a bimodal manner. The average yearly CO2 concentration in the pipe outflowing earth-air is 789.2 ppm; that of the inflowing air is 594.5 ppm. This study provides a method for monitoring terrestrial CO2 release. Determining the amount CO2 emitted via the earth-air mechanism has great significance for the scientific evaluation of soil respiration, natural CO2 emission effects on ambient.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102437"},"PeriodicalIF":3.9,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dechlorane plus and its related compounds in residential indoor dust from the Quzhou City: Occurrence and human exposure

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-27 DOI: 10.1016/j.apr.2025.102435

Wenli Liu , Panpan Hong , Jiancheng Chen , Jianqiang Zhu

{"title":"Dechlorane plus and its related compounds in residential indoor dust from the Quzhou City: Occurrence and human exposure","authors":"Wenli Liu , Panpan Hong , Jiancheng Chen , Jianqiang Zhu","doi":"10.1016/j.apr.2025.102435","DOIUrl":"10.1016/j.apr.2025.102435","url":null,"abstract":"<div><div>In contrast to dechlorane plus (DP), DP related compounds (DPCs) have received fewer investigation regarding human exposure through the ingestion of residential indoor dust. This study analyzed anti-DP, syn-DP, and 13 DPCs in indoor dust from China (n = 137), and then estimated the amount of human exposure to these compounds via indoor dust ingestion. Monitoring results revealed the presence of anti-DP, syn-DP, and 11 DPCs in collected indoor dust, with anti-DP, syn-DP, dechlorane, mono-dechlorinated DP (Cl11-DP), and dechlorane 602 (Dec602) having the detection frequencies of >50%. All the collected indoor dust samples contained measurable anti-DP and syn-DP, with the mean concentrations of 45 ng/g (range 0.27–708 ng/g) and 24 ng/g (0.21−163 ng/g), respectively. Among detected DPCs, dechlorane (mean 12 ng/g, range < LOD−74 ng/g) was the most prominent chemical, with the mean concentration being 4.8 and 2.6 times higher than that of Cl11-DP (2.5 ng/g) and Dec602 (4.6 ng/g), respectively. In indoor dust samples, concentrations of di-dechlorinated DP (Cl10-DP; p < 0.01) and Cl11-DP (p < 0.01) exhibited significant correlations with that of DP, indicating that Cl10-DP and Cl11-DP may be mainly derived from the dichlorination of DP in indoor dust. Toddlers (mean 4.2−75 pg/kg bw/day) exhibited remarkably greater daily intake of target DP and DPCs, compared with adults (1.9−35 pg/kg bw/day) and children (3.5−63 pg/kg bw/day). This represents the most comprehensive study, to our knowledge, examining the presence of DPCs in residential indoor dust.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102435"},"PeriodicalIF":3.9,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Profiles and source apportionment of PAHs in particulate matter from resuspended dust in coal mining areas: Implications for atmospheric pollution

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-27 DOI: 10.1016/j.apr.2025.102434

Xiulong Gao , Jing Wang , Zhonggeng Luo , Shan Li , Handong Liang

{"title":"Profiles and source apportionment of PAHs in particulate matter from resuspended dust in coal mining areas: Implications for atmospheric pollution","authors":"Xiulong Gao , Jing Wang , Zhonggeng Luo , Shan Li , Handong Liang","doi":"10.1016/j.apr.2025.102434","DOIUrl":"10.1016/j.apr.2025.102434","url":null,"abstract":"<div><div>This study collected particulate matter (PM) samples from 20 dust samples in the Zhubai mining area, Linyi City, Shandong Province, China, using a laboratory resuspension particle sampling system. Polycyclic aromatic hydrocarbons (PAHs) in PM2.5, PM10, and total PM (PMtotal) were quantified using GC/MS/MS, identifying 32 aromatic compounds. PAH concentrations decreased in the order of PM2.5 (66.46 ± 43.56 μg/g), PM10 (19.96 ± 10.95 μg/g), and PMtotal (15.13 ± 12.09 μg/g), with levels significantly higher than previous reports in soil/dust systems. PM2.5 and PM10 profiles were similar, dominated by low-ring PAHs like naphthalene and phenanthrene, while high-ring PAHs associated with combustion appeared at very low levels. PMtotal differed markedly, with reduced naphthalene and increased proportions of combustion-related PAHs like fluoranthene, chrysene, and benzo[g,h,i]perylene. The coefficient of divergence (CD) suggested that particle size impacts PAH composition, indicating that distinguishing fine and coarse particles is crucial for accurate pollution assessment. Diagnostic ratio characteristics revealed mixed PAH sources, emphasizing the need to consider local pollution sources for accurate source apportionment. The Positive Matrix Factorization (PMF) model identified three primary PAH sources: coal/coal gangue particles (42.2%), coal/biomass combustion (34.6%), and traffic emissions (23.3%). Surface dust from coal mining areas, influenced by unburned coal and coal gangue, likely significantly contributed to atmospheric particulate matter once resuspended.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102434"},"PeriodicalIF":3.9,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving the accuracy of emission rate estimates under convective conditions with a dispersion-model-based method

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-27 DOI: 10.1016/j.apr.2025.102433

Biao Wang, Caiping Sun, Wei Wang, Xingyue Tu, Shuming Du

引用次数: 0

Characteristics and secondary transformation potential of volatile organic compounds based on hourly variation to infer best ways to manage air quality

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-24 DOI: 10.1016/j.apr.2025.102432

Elson Silva Galvão , Neyval Costa Reis Junior , Elisa Valentim Goulart , Prashant Kumar , Jane Meri Santos

{"title":"Characteristics and secondary transformation potential of volatile organic compounds based on hourly variation to infer best ways to manage air quality","authors":"Elson Silva Galvão , Neyval Costa Reis Junior , Elisa Valentim Goulart , Prashant Kumar , Jane Meri Santos","doi":"10.1016/j.apr.2025.102432","DOIUrl":"10.1016/j.apr.2025.102432","url":null,"abstract":"<div><div>Volatile organic compounds (VOCs) concentrations vary considerably across different times and locations, making high-resolution monitoring crucial for accurately representing the formation processes of secondary pollutants. In this study, we assessed the impact of hourly concentrations of VOCs and nitrogen oxides (NOx) on ozone formation potential (OFP) and secondary organic aerosol formation potential (SOAFP) at two sites in an urban-industrialized region of Brazil. The aim was to understand the effects of VOCs on SOA formation and identify optimal strategies for controlling their environmental impacts. An analysis of the urban-industrial and suburban sites revealed significant differences in pollution patterns. The region is influenced by local anthropogenic emissions such as residential/commerce (39%), vehicular exhaust (28%), industrial processes (18%), fuel evaporation (10%), and solvent usage (3%). The ES site showed higher and more varied VOC concentrations, elevated NOx, and distinct ozone production dynamics indicative of a VOC-limited regime. In contrast, the MO site exhibited lower VOC levels, suggesting a suburban pattern mainly influenced by aged air masses. Key VOCs like trimethylbenzene isomers and ethylbenzene dominate OFP calculated by measured VOCs (OFPM) at the ES site, while a more even distribution among VOC species is observed at MO. SOAFP analysis highlights substantial contributions from benzene and ethylbenzene at both sites, with ES showing a closer match between SOAFP and measured PM2.5 concentrations. The findings emphasize the necessity for site-specific air quality management strategies targeting major VOC contributors to effectively reduce ozone and PM2.5 levels, thereby improving environmental health outcomes.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102432"},"PeriodicalIF":3.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Source apportionment of major ions and trace elements in the atmospheric deposition of Palermo (Sicily, Italy)

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-23 DOI: 10.1016/j.apr.2025.102431

Filippo Brugnone , Walter D'Alessandro , Marcello Liotta , Marcello Bitetto , Luciana Randazzo , Sergio Bellomo , Lorenzo Brusca , Giovanna Cilluffo , Francesco Parello , Sergio Calabrese

{"title":"Source apportionment of major ions and trace elements in the atmospheric deposition of Palermo (Sicily, Italy)","authors":"Filippo Brugnone , Walter D'Alessandro , Marcello Liotta , Marcello Bitetto , Luciana Randazzo , Sergio Bellomo , Lorenzo Brusca , Giovanna Cilluffo , Francesco Parello , Sergio Calabrese","doi":"10.1016/j.apr.2025.102431","DOIUrl":"10.1016/j.apr.2025.102431","url":null,"abstract":"<div><div>In Palermo, (Sicily, Italy), a year-long study was conducted to analyse the chemical composition of atmospheric deposition samples. The research was carried out at four urban sites and one semi-rural site. The atmospheric deposition samples were analysed both for major ions and trace elements. Abundances of major ions, on meq L−1 basis, followed the sequence Cl− > HCO3− > NO3− > SO42− > F− > Br− for anions, and Na+ > Ca2+ > NH4+ > Mg2+ > K+ for cations. The statistical technique of Confirmatory Factor Analysis (CFA) was used to identify the main sources of origin of some of the main species and trace elements studied. Ions such as Cl−, Na+, Br and I were attributed to the marine source, whilst NH4+ and NO3− to the anthropogenic source, as well as Mo, Cd, Cu, As, Pb, Sb and V among the trace elements. On the other hand, Ca2+, K+, Li, Fe, Al, and Sr were mainly of crustal origin. The seawater fractions of Mg2+ and SO42− were of marine origin, whereas the non-seawater fractions of the same ions were of crustal and anthropogenic origin, respectively. Anthropogenic sources, such as internal-combustion vehicle, domestic heating, and plant emissions, must be considered for Cu, Cr, Ba, Mo, Sb, Zn, As, Ni, and V. This study produced a previously unpublished dataset on the chemical composition of atmospheric deposition that made it possible to identify the main sources influencing air quality in the metropolitan area of Palermo (Italy).</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102431"},"PeriodicalIF":3.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristics of ozone pollution and VOCs source analysis in the northern cities of Zhejiang, China

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-22 DOI: 10.1016/j.apr.2025.102429

Yinglong Zhang , Xiaoxia Yang , Xu Lin , Ye Lu , Li Li , Xiaopei Xu , Jing Yuan , Fan Zhang , Xinglong Pang , Huanhuan Zhao , Xinming Zhu , Yaozong Shen , Shuang Qiu , Jinhui Gao

{"title":"Characteristics of ozone pollution and VOCs source analysis in the northern cities of Zhejiang, China","authors":"Yinglong Zhang , Xiaoxia Yang , Xu Lin , Ye Lu , Li Li , Xiaopei Xu , Jing Yuan , Fan Zhang , Xinglong Pang , Huanhuan Zhao , Xinming Zhu , Yaozong Shen , Shuang Qiu , Jinhui Gao","doi":"10.1016/j.apr.2025.102429","DOIUrl":"10.1016/j.apr.2025.102429","url":null,"abstract":"<div><div>As an important industrial area in the Yangtze River Delta region, the northern part of Zhejiang Province, including Hangzhou, Jiaxing and Huzhou, is experiencing severe ozone pollution from 2020 to 2022. By analyzing the observations measured at 23 stations in northern Zhejiang, the spatiotemporal features of the ozone pollution and the relationship between ozone and volatile organic compounds (VOCs) were discussed in this paper. The results revealed that, during the 3 years, the average ozone concentration in three cities increased from 153 to 173 μg m−3, and the average ozone-polluted days increased from 29 to 58 days. The relationship between temperature and ozone showed a suppression of temperature on ozone photochemistry when that is higher than 34 °C. The mean concentrations of VOCs were 32.10 ppb and the ozone formation potential were 174.52 μg m−3 in Northern Zhejiang in 2022. Among all the observed VOCs species, the concentrations of alkanes and OVOCs could accounted for 30.87.% and 30.35%, however, alkenes and aromatic hydrocarbons were the first two main contributors (24.41% and 36.33%, respectively) to the photochemical production of ozone in northern Zhejiang. The potential source areas of alkenes and aromatic hydrocarbons were complex in northern Zhejiang, the analysis of the Concentration Weighted Trajectory (WCWT) indicated the potential source areas almost exist in all directions. In addition, the surrounding areas with high WCWT value could not be ignored. The regional joint prevention and emission control strategy are required in the ozone pollution control in Northern Zhejiang.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102429"},"PeriodicalIF":3.9,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification and characterization of the source water-insoluble single particulate matter in rain events in the province of Isparta

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-21 DOI: 10.1016/j.apr.2025.102427

Murat Kilic

{"title":"Identification and characterization of the source water-insoluble single particulate matter in rain events in the province of Isparta","authors":"Murat Kilic","doi":"10.1016/j.apr.2025.102427","DOIUrl":"10.1016/j.apr.2025.102427","url":null,"abstract":"<div><div>Analyzing atmospheric pollutants in rainwater is crucial for evaluating the environmental impacts of both natural and anthropogenic pollution sources. Literature review indicates that air pollution studies commonly employ the collection of particulate matter (PM) on filters for subsequent analysis. However, this approach may result in significant particle accumulation on the filters, thereby complicating their characterization through semi-quantitative analytical techniques. This study characterized insoluble particulate matter from sequentially collected rainwater samples based on particle size, morphology, and chemical composition. Scanning Electron Microscopy (SEM) coupled with Energy Dispersive X‒Ray Spectrometry (EDS) and a particle size analyzer were utilized. Integrating SEM‒EDS data with particle size distribution analyses, chemical composition results, and upper atmospheric back-trajectory modeling made it possible to identify specific sources of insoluble particles in the rainwater samples. The rainwater samples were also analyzed for pH, electrical conductivity, and major anions and cations. The pH values ranged from 5.92 to 7.43, and electrical conductivity values varied between 6.19 and 102.4 μS/cm. Among the major ions, relatively high concentrations of Ca2+, SO42−, and NO3⁻ were detected, while lower concentrations of F⁻, Mg2⁺, Na⁺, and Cl⁻ were observed. Elevated Ca2+, Mg2+, K⁺, and F⁻ levels were linked to local anthropogenic activities, including agricultural practices, biomass burning, and vehicular emissions. Conversely, NH4+, SO42−, and NO3− presence was attributed to long-range atmospheric transport. Contributions from sea salt were evidenced by the levels of Cl− and Na⁺ ions.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102427"},"PeriodicalIF":3.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modification effects of ambient temperature and relative humidity on acute upper respiratory infection morbidity by PM2.5 components in university students

IF 3.9 3区环境科学与生态学

Atmospheric Pollution Research Pub Date : 2025-01-21 DOI: 10.1016/j.apr.2025.102430

Yali Niu , Mengyang Yuan , Feng Jiang , Yongli Yang , Xiaocan Jia , Chaojun Yang , Junzhe Bao , Xuezhong Shi

{"title":"Modification effects of ambient temperature and relative humidity on acute upper respiratory infection morbidity by PM2.5 components in university students","authors":"Yali Niu , Mengyang Yuan , Feng Jiang , Yongli Yang , Xiaocan Jia , Chaojun Yang , Junzhe Bao , Xuezhong Shi","doi":"10.1016/j.apr.2025.102430","DOIUrl":"10.1016/j.apr.2025.102430","url":null,"abstract":"<div><div>The present study attempted to investigate the associations of PM2.5 and its components with the acute upper respiratory infections (AURI) and the modification effects of temperature and relative humidity (RH). Daily AURI visits data were obtained from Zhengzhou university hospital from 2014 to 2019. Distributed lag nonlinear modelling (DLNM) was used to assess the associations between PM2.5 and its components and AURI morbidity. The modifying effects of temperature and RH on the associations of PM2.5 and its components with AURI were explored by DLNM with cross-base interaction terms of PM2.5 and its components with temperature or RH. During the study period, 87,186 university students visited AURI. The relative risk (RR) per interquartile range (IQR) increase for PM2.5 and its components NO3−, SO42−, NH4+, BC and OM were 1.03 (0.99, 1.09) and 1.05 (0.99, 1.11), 0.98 (0.93, 1.04), 1.02 (0.97, 1.08), 1.07 (1.02, 1.12), 1.08 (1.03, 1.15), respectively. Low temperature increased the adverse effects of PM2.5 and its components NO3−, BC, OM. High relative humidity enhanced the adverse effects of PM2.5 and its components NO3−, NH4+, BC, OM. The adverse effects of NO3−, BC, and OM were only evident in the female university students and during the cold season. PM2.5 components may adversely affect AURI morbidity in university students. Low temperatures and high relative humidity may exacerbate the deleterious effects of PM2.5 components. This reminds us to enhance the prevention of AURI caused by PM2.5 components, especially in cold and humid meteorological conditions.</div></div>","PeriodicalId":8604,"journal":{"name":"Atmospheric Pollution Research","volume":"16 4","pages":"Article 102430"},"PeriodicalIF":3.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0