Asian Journal of Atmospheric Environment最新文献_第3页

Analysis of air quality based on national monitoring networks in the Republic of Korea, 2023 - annual trends in air quality over two decades in South Korea- 基于韩国国家监测网络的2023年空气质量分析——韩国20年来空气质量的年度趋势

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-12-29 DOI: 10.1007/s44273-025-00073-0

Soyoung Kang, ChanJung An, Dayeong Lee, Dong-Hee Jung, Eunsun Jeong, Jinju Jeong, In-Ho Song, Hye Jung Shin, Seung-Ha Lee, Hae-Jin Jung, Yong-Jae Lim, Jung Min Park, Jiwon Seong

{"title":"Analysis of air quality based on national monitoring networks in the Republic of Korea, 2023 - annual trends in air quality over two decades in South Korea-","authors":"Soyoung Kang, ChanJung An, Dayeong Lee, Dong-Hee Jung, Eunsun Jeong, Jinju Jeong, In-Ho Song, Hye Jung Shin, Seung-Ha Lee, Hae-Jin Jung, Yong-Jae Lim, Jung Min Park, Jiwon Seong","doi":"10.1007/s44273-025-00073-0","DOIUrl":"10.1007/s44273-025-00073-0","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, to assess the long-term air quality status in South Korea, we analyzed the concentration and attainment rate of air quality standards for 8 pollutants such as SO₂, NO₂, CO, O₃, PM₁₀, PM₂.₅, Pb, and benzene. In 2023, the average concentrations were as follows: PM₁₀ 37 µg/m³, PM₂.₅ 19 µg/m³, SO₂ 0.0025 ppm, NO₂ 0.0135 ppm, CO 0.39 ppm, O₃ 0.0327 ppm, Pb 0.01979 µg/m³, and benzene 0.64 µg/m³. Due to ongoing strict emission control policies, PM₂.₅ and NO₂ levels have decreased by approximately 27% and 43%, respectively, compared to 2015. Other pollutants, including SO₂, CO, PM₁₀, Pb, and benzene, also showed significant reductions, ranging from 36% to 74%, over the analyzed period. However, O₃ levels have shown a 73% increase since 1998. Primary pollutants have generally decreased in concentration with higher attainment rate for air quality standards, whereas PM₂.₅, a secondary pollutant, still exhibits a low attainment rate of less than 20% in 2023 despite concentration reductions. Likewise, low attainment rate coupled with rising O₃ levels indicate a need to focus on secondary pollutants in future air quality management policies. This study provides long-term observational data on air pollutants in South Korea, which can aid in understanding air quality across East Asia and help to make a direction ongoing air quality improvement policy.</p>\u0000 </div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00073-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145886871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dispersion of PM2.5 particles emitted by the waste dump fire in the city of Guanajuato, Mexico 墨西哥瓜纳华托市垃圾场火灾排放的PM2.5颗粒的扩散

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-12-23 DOI: 10.1007/s44273-025-00070-3

Adrián Zamorategui-Molina, Gilberto Álvarez Guzmán, Marcos Irineo Esquivel Longoria, Juan Carlos Baltazar Vera, Alma Hortensia Serafín Muñoz

{"title":"Dispersion of PM2.5 particles emitted by the waste dump fire in the city of Guanajuato, Mexico","authors":"Adrián Zamorategui-Molina, Gilberto Álvarez Guzmán, Marcos Irineo Esquivel Longoria, Juan Carlos Baltazar Vera, Alma Hortensia Serafín Muñoz","doi":"10.1007/s44273-025-00070-3","DOIUrl":"10.1007/s44273-025-00070-3","url":null,"abstract":"<div><p>Air pollution is the most significant environmental health risk, and the chemical composition of PM<sub>2.5</sub> has the greatest impact on its effects on human health. While PM<sub>2.5</sub> pollution has been widely studied, little attention has been given to the role of landfill fires in shaping PM<sub>2.5</sub> composition and dispersion in medium-sized cities with complex topographies. This study integrates the physical and chemical characterization of PM<sub>2.5</sub> (potassium, chlorine, and irregular morphology) with AERMOD dispersion modeling to assess exposure during a landfill fire in Guanajuato, Mexico. The maximum monthly average concentration was recorded in May at 22.4 µg m⁻<sup>3</sup>, while the 24-h average exceeded the allowable limit of 33 µg m⁻<sup>3</sup> during the days of the landfill fire, reaching 50 µg m⁻<sup>3</sup>. The annual average concentration (13.4 µg m⁻<sup>3</sup>) also exceeded the 10 µg m⁻<sup>3</sup> guideline. AERMOD simulations reproduced observed patterns, confirming northeastward dispersion toward the city hillside. Based on the 12-h moving average during the fire (45 µg m⁻<sup>3</sup>), residents were exposed to poor air quality and elevated risks of respiratory and cardiovascular diseases, stroke, and lung cancer. These results provide novel evidence of the contribution of landfill fires to urban PM<sub>2.5</sub> pollution and associated health risks, offering valuable insights for air quality management and public health protection in cities with similar environmental conditions.</p></div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00070-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145831372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emissions of volatile organic compounds from a commercial hen shed in Japan 日本一家商业鸡舍挥发性有机化合物的排放

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-12-22 DOI: 10.1007/s44273-025-00078-9

Nobuyuki Tanaka, Nanami Hanari, Ayumi Takahara, Akane Miyazaki, Genki Katata, Hisao Kuroda

{"title":"Emissions of volatile organic compounds from a commercial hen shed in Japan","authors":"Nobuyuki Tanaka, Nanami Hanari, Ayumi Takahara, Akane Miyazaki, Genki Katata, Hisao Kuroda","doi":"10.1007/s44273-025-00078-9","DOIUrl":"10.1007/s44273-025-00078-9","url":null,"abstract":"<div>\u0000 \u0000 <p>To better understand the actual status of volatile organic compound (VOC) emissions from the livestock industry in Japan, air samples were collected near the exhaust vents of a windowless commercial layer hen facility located in the northern Kanto region. Environmental parameters including temperature, relative humidity, and wind speed at the ventilation outlets were also recorded. The average VOC concentration inside the shed ranged from 151 to 448 μg m⁻<sup>3</sup>, consistent with those observed in educational hen sheds. Volatile fatty acids (VFAs) were the most abundant VOCs across all months, followed by ketones and aldehydes, together accounting for 72–91% of total VOCs. Regarding atmospheric impacts, VFAs contributed most to hydroxyl radical reactivity (OHR), while aldehydes dominated ozone formation potential (OFP). VOC emission rates (ERs) ranged from 271 to 1240 μg h⁻<sup>1</sup> kg⁻<sup>1</sup>, with the highest value recorded in June, and were positively correlated with in-shed temperature. The estimated annual VOC emissions from commercial layer hen facilities across Japan totaled approximately 455 tons, representing ~0.1% of the country’s anthropogenic VOC emissions.</p>\u0000 <span>AbstractSection</span>\u0000 Graphical Abstract\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 \u0000 </div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00078-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145831156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Microplastics and health hazards: gastrointestinal risk assessment across a multi-species perspective 更正：微塑料和健康危害：多物种视角下的胃肠道风险评估

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-12-19 DOI: 10.1007/s44273-025-00076-x

Shiv Basant Kumar, Jey Kumar Pachiyappan, Sudharsanavasan Chandrasekar, Veera Venkata Satyanarayana Reddy Karri, Praveen Thaggikuppe Krishnamurthy, Jawahar Natarajan, Thava Palanisami, Gowthamarajan Kuppusamy

引用次数: 0

A comparative study of the UV index between OMI and ground-based measurements in Nepal 尼泊尔OMI与地面测量的紫外线指数比较研究

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-12-17 DOI: 10.1007/s44273-025-00072-1

Umakant L. Karna, Khem N. Poudyal, Babu R. Tiwari, Binod K. Bhattarai

{"title":"A comparative study of the UV index between OMI and ground-based measurements in Nepal","authors":"Umakant L. Karna, Khem N. Poudyal, Babu R. Tiwari, Binod K. Bhattarai","doi":"10.1007/s44273-025-00072-1","DOIUrl":"10.1007/s44273-025-00072-1","url":null,"abstract":"<div><p>The study on solar ultraviolet radiation (UVR) is essential for understanding the solar status of any location, which enables the determination of the level of exposure to solar UV radiation and the necessary precautions to be taken at that location. The measurement of solar UV radiation and its validation are increasingly prevalent worldwide, using various ground-based observations and satellite estimates. This paper compares the Ozone Monitoring Instrument (OMI)/Aura satellite solar ultraviolet index (UVI) with the ground-based UVI measurements at Biratnagar, Pokhara, Kathmandu, and Lukla in Nepal using data from 2009 to 2012. Trend analysis of UVI using moving averages, a box plot of overpass UVI and Total Ozone Column (TOC) to analyze their trends, and a scatter plot for comparison of OMI overpass UVI with ground-based UVI. Statistical tools were used to compare the datasets for UVI in all-sky conditions. The results show that satellite estimates tended to overestimate ground-based UVI levels, with a mean bias, relative bias, MAPE, RMSE, correlation coefficient, and standard deviation of error corresponding to 0.92, 1.9, 28.44, 1.6, 0.69, and 1.44 for UVI, respectively. The result also shows that the altitude effect is found to be (6.5-8.8) %/km approximately.</p></div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00072-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145778889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic role of atmospheric constituents in the formation of 6PPD-Quinone in a Korean Metropolitan Region 韩国首都圈大气成分对6ppd -醌形成的催化作用

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-12-08 DOI: 10.1007/s44273-025-00075-y

Hajeong Jeon, Dong-Hoon Ko, Myoungki Song, Min-Suk Bae

{"title":"Catalytic role of atmospheric constituents in the formation of 6PPD-Quinone in a Korean Metropolitan Region","authors":"Hajeong Jeon, Dong-Hoon Ko, Myoungki Song, Min-Suk Bae","doi":"10.1007/s44273-025-00075-y","DOIUrl":"10.1007/s44273-025-00075-y","url":null,"abstract":"<div>\u0000 \u0000 <p>N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine quinone (6PPD-quinone) is an oxidation product of the tire antioxidant 6PPD and has recently emerged as a toxic environmental contaminant. Although the transformation of 6PPD to 6PPD-quinone through ozone has been documented, the influence of other atmospheric constituents as catalysts remains inadequately characterized. This study assessed whether specific airborne elements promote the conversion of 6PPD to 6PPD-quinone. From 7 to 26 June 2024, total suspended particles were sampled at the National Institute of Environmental Research in Incheon, Republic of Korea. The elemental composition of collected samples was determined using energy-dispersive X-ray fluorescence, while 6PPD-quinone levels were measured by liquid chromatography–tandem mass spectrometry. Particle number and volume concentrations were recorded in parallel with a scanning mobility particle sizer and an optical particle sizer, along with real-time detection of black carbon, nitrogen dioxide, and ozone. Mean daytime 6PPD-quinone concentrations were measured at 0.12 ± 0.08 ng m<sup>− 3</sup>, displaying significant temporal variability (0.001–0.519 ng m<sup>− 3</sup>). Multivariate regression analysis identified bromine and vanadium as principal predictors of 6PPD-quinone abundance. Notably, strong correlations with particle characteristics indicated that these elements may act not only as markers of emissions but also as catalysts facilitating atmospheric transformation of 6PPD. This study offers the first mechanistic insight in Korea into the contribution of traffic-associated elements to 6PPD-quinone formation, which has important implications for urban air quality management and the assessment of ecological risks.</p>\u0000 </div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00075-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145729610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nighttime waste wood burning and its impact on urban air quality: multi-Year measurements in central Seoul, Gwanghwamun, South Korea 夜间废柴燃烧及其对城市空气质量的影响：韩国光化门首尔市中心的多年测量

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-12-02 DOI: 10.1007/s44273-025-00074-z

Chaehyeong Park, Seoyeong Choe, Min Young Song, Sung‑Kyun Shin, Hajeong Jeon, Dong-Hoon Ko, Myoungki Song, Min-Suk Bae

{"title":"Nighttime waste wood burning and its impact on urban air quality: multi-Year measurements in central Seoul, Gwanghwamun, South Korea","authors":"Chaehyeong Park, Seoyeong Choe, Min Young Song, Sung‑Kyun Shin, Hajeong Jeon, Dong-Hoon Ko, Myoungki Song, Min-Suk Bae","doi":"10.1007/s44273-025-00074-z","DOIUrl":"10.1007/s44273-025-00074-z","url":null,"abstract":"<div>\u0000 \u0000 <p>This study examines variations in PM<sub>2.5</sub> mass, chemical composition, and oxidative potential (OP) at Gwanghwamun Square, Seoul, using intensive 3-h integrated sampling campaigns performed in September 2020 and 2022. The mean PM<sub>2.5</sub> concentrations declined significantly from 20.66 µg/m<sup>3</sup> in 2020 to 12.04 µg/m<sup>3</sup> in 2022, indicating a 42% reduction in overall particle mass. Despite this progress, the mass-normalized oxidative potential (DTTm) remained statistically unchanged (0.04 ± 0.04 vs. 0.03 ± 0.05 µM/µg, showing that particle toxicity per unit mass did not decrease. However, organic aerosol components exhibited marked increases in 2022. Organic carbon (OC) and water-soluble organic carbon (WSOC) increased by 22% and 82%, respectively, and primary organic carbon (POC) experienced more than a twofold rise. Levoglucosan (LEVO) concentrations grew by 37%, especially during nighttime periods, and the levoglucosan-to-POC ratio (LEVO/POC) surpassed 35 × 10<sup>− 3</sup> µg/µg at night, providing clear evidence of intensified biomass burning contributions. Annual flammable waste wood generation increased substantially in 2022, further supporting the conclusion that nighttime waste wood combustion contributed to higher organic aerosol levels and persistent OP values. These findings emphasize that reducing PM<sub>2.5</sub> mass alone is inadequate; targeted interventions to control nighttime biomass burning are essential for lowering health-relevant aerosol toxicity in urban Seoul.</p>\u0000 </div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00074-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145674958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of polycyclic aromatic sulfur heterocycles (PASHs) in PM2.5 from Xi’an, China and Yokohama, Japan: pollution characteristics and source attribution 中国西安与日本横滨PM2.5中多环芳香族硫杂环（PASHs）的污染特征及来源分析

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-11-26 DOI: 10.1007/s44273-025-00069-w

Kaixu Chen, Weidong Jing, Zhenxing Shen, Tomoaki Okuda

{"title":"Comparative analysis of polycyclic aromatic sulfur heterocycles (PASHs) in PM2.5 from Xi’an, China and Yokohama, Japan: pollution characteristics and source attribution","authors":"Kaixu Chen, Weidong Jing, Zhenxing Shen, Tomoaki Okuda","doi":"10.1007/s44273-025-00069-w","DOIUrl":"10.1007/s44273-025-00069-w","url":null,"abstract":"<div><p>Polycyclic aromatic sulfur heterocycles (PASHs) sulfur-containing analogues of polycyclic aromatic hydrocarbons (PAHs) are emerging atmospheric pollutants of concern due to their potential toxicity and environmental persistence. This study presents the first comparative analysis of PASHs in PM<sub>2.5</sub> between two representative East Asian cities: Xi’an, China, and Yokohama, Japan. Ambient PM<sub>2.5</sub> samples were collected from July 2022 to July 2023, and four PASHs compounds were quantified using gas chromatography tandem mass spectrometry (GC–MS/MS). Concentrations, seasonal variations, and emission sources were systematically analyzed. The results showed that the annual mean PASHs concentration in Xi’an (156.6 pg/mg) was significantly higher than that in Yokohama (102.6 pg/mg). Source apportionment using the Positive Matrix Factorization (PMF) model identified four major pollution sources in each city, revealing notable differences in source composition between the two countries. This study advances the understanding of the atmospheric behavior and origins of PASHs in East Asian urban environments and highlights cross-regional differences in their pollution profiles.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00069-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145612825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Peroxide concentrations measured over a rural site in the Hokuriku district, coastal region of the Sea of Japan, central Japan, during early summer using a helicopter 在初夏期间，用直升飞机在日本中部日本海沿海地区北陆地区的一个农村地区测量过氧化物浓度

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-11-24 DOI: 10.1007/s44273-025-00071-2

Koichi Watanabe, Nanami Maki, Michiyo Chatani, Chisato Maki, Ayami Nakanishi, Yuki Wasada, Taisei Akahori, Ryoga Ono, Yuta Yamazaki, Chiharu Mori

{"title":"Peroxide concentrations measured over a rural site in the Hokuriku district, coastal region of the Sea of Japan, central Japan, during early summer using a helicopter","authors":"Koichi Watanabe, Nanami Maki, Michiyo Chatani, Chisato Maki, Ayami Nakanishi, Yuki Wasada, Taisei Akahori, Ryoga Ono, Yuta Yamazaki, Chiharu Mori","doi":"10.1007/s44273-025-00071-2","DOIUrl":"10.1007/s44273-025-00071-2","url":null,"abstract":"<div><p>Atmospheric concentrations of peroxides (hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) and methyl hydroperoxide (MHP)), formaldehyde (HCHO), ozone (O<sub>3</sub>), and sulfur dioxide (SO<sub>2</sub>) were measured using a helicopter over Imizu City, Toyama Prefecture, central Japan in early summer (May and June) from 2022 to 2024. The impact of transboundary air pollution was relatively small during the observation days. H<sub>2</sub>O<sub>2</sub> concentrations were higher in the high-altitude atmosphere than on the ground and were sufficiently high relative to SO<sub>2</sub>, similar to the H<sub>2</sub>O<sub>2</sub> concentrations previously measured in mid-summer (August), suggesting that the potential for sulfur dioxide oxidation is high over central Japan during warm seasons. HCHO concentrations in the high-altitude atmosphere were high due to the influence of air pollution from domestic urban areas. The measurement results in this study were compared with the results of a series of helicopter observations previously conducted over Toyama Prefecture, and the characteristics of the oxidizing capacity in the atmosphere over central Japan are discussed.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00071-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145612438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new hybrid multivariate prediction model based on wavelet transform convolution for PM2.5 prediction 基于小波变换卷积的PM2.5混合多元预测模型

IF 1.8

Asian Journal of Atmospheric Environment Pub Date : 2025-11-18 DOI: 10.1007/s44273-025-00067-y

Xinbiao Lu, Wentao Zhang, Gaofan Zhan, Wen Wu, Changjiang Han, Xiaolong Wu

{"title":"A new hybrid multivariate prediction model based on wavelet transform convolution for PM2.5 prediction","authors":"Xinbiao Lu, Wentao Zhang, Gaofan Zhan, Wen Wu, Changjiang Han, Xiaolong Wu","doi":"10.1007/s44273-025-00067-y","DOIUrl":"10.1007/s44273-025-00067-y","url":null,"abstract":"<div><p>With the rapid development of industry and urbanization, air pollution has become a global environmental issue, with PM2.5 attracting widespread attention due to its severe impact on human health and the environment. Therefore, accurate prediction of PM2.5 concentration is crucial for environmental protection and public health. However, the nonlinear and multivariate characteristics of PM2.5 data pose challenges to prediction accuracy. To address this issue, we propose an innovative hybrid multivariate prediction model called WTCrossformer, which integrates wavelet transform convolution (WTC) to better extract local features and reduce the impact of noise on predictions. Additionally, the model employs dimension segment-wise embedding (DSW) and two-stage attention (TSA) mechanisms to capture temporal and cross-variable correlations in multivariate PM2.5 data, leveraging a hierarchical encoder-decoder structure to generate prediction results. This paper selects a multivariate time-series dataset from the UCI Machine Learning Repository. There are a total of 13 variables in this dataset, which details the air pollutant situations and meteorological conditions at 12 monitoring stations in the Beijing area over a 5-year period. Comparative experiments carried out on multiple PM2.5 datasets indicate that the model achieves relatively high prediction accuracy. It can accurately predict the trends of PM2.5 concentration, offering effective guidance for people’s daily life and health. Ablation experiments further confirm that the introduction of the WTC module significantly enhances the prediction accuracy. Our research provides strong technical support for environmental monitoring and pollution prediction.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":45358,"journal":{"name":"Asian Journal of Atmospheric Environment","volume":"19 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44273-025-00067-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145560849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0