检索结果-内蒙古大学图书馆

Impacts of wildfire smoke aerosols on radiation, clouds, precipitation, climate, and air quality

ATMOSPHERIC ENVIRONMENT-X 2025年 26卷

作者： Vaezi, Rahele Barjeste Martin, Michael R. Hosseinpour, Farnaz Univ Nevada Reno Reno NV 89557 USA Desert Res Inst Reno NV USA

Wildfires have become increasingly prevalent, impacting ecosystems, climate, and human health on a global scale. This review aims to present a comprehensive analysis of current knowledge on the environmental factors and conditions driving wildfires, the characteristics and transport of smoke emissions, along the broader impacts of wildfire smoke on the weather and climate. These impacts include changes in atmospheric radiation, cloud formation, atmospheric circulation, precipitation patterns, and air quality, as well as their effects on land cover, safety, and public health. Wildfire emissions include various pollutants such as particulate matter that alter the Earth's energy balance, reduce air quality, and impact cloud microphysics. Key interactions, such as the direct and indirect effects of smoke aerosols, affect cloud cover and lifetime, precipitation, atmospheric stability, and ultimately induce changes in weather and climate dynamics. Moreover, smoke transport extends the effects of wildfires thousands of kilometers beyond their sources, which reduces agricultural productivity, deteriorates human health, and threatens the environment. Advances in satellite retrievals and modeling techniques have improved the ability to monitor, analyze, and predict these complex interactions. Moreover, this review highlights the critical need for advancing research to more precisely quantify and project multi-scale trends in wildfire smoke and its far-reaching impact on public health, safety, infrastructure, and ecosystems. Developing more robust adaptation strategies and resilience measures is essential to effectively mitigate these complex, adverse effects on communities and the environment.

关键词： Wildfire Smoke Emission aerosols Clouds Climate Air quality

来源：评论

学校读者我要写书评

暂无评论

Investigating the formation of microplastic aerosols and their dispersion in urban environments: A comparative physical modelling study of aerosol and gas dispersion

引用

ATMOSPHERIC POLLUTION RESEARCH 2025年第6期16卷

作者： Chaloupecka, Hana Suchanek, Jan Wild, Jan Mamula, Milan Kellnerova, Radka Nevrly, Vaclav Dostal, Michal Zelinger, Zdenek Czech Acad Sci Inst Thermomech Dolejskova 5 Prague 18200 Czech Republic Czech Acad Sci Heyrovsky Inst Phys Chem Dolejskova 3 Prague 18200 Czech Republic Charles Univ Prague Fac Math & Phys V Holesovickach 2 Prague 18000 Czech Republic VSB Tech Univ Ostrava Lumirova 13 Ostrava 70030 Czech Republic

aerosols are present in almost all aspects of everyday life. aerosols affect climate and health and arise in hazardous situations such as industrial accidents. In this study, we examined the generation of microplastic aerosols from polypropylene pipes used in drinking water systems and their dispersion in a simulated accident scenario using wind tunnel modelling. We compared aerosol and gas dispersion from a ground-level point source in a street canyon in a central European town. The results show that 185-nm UVC light generated stable microplastic aerosols (predominantly <1 mu m) from the polypropylene. Although both the aerosol and gas dispersions exhibited recirculation and ventilation regions characteristic of an isolated roughness flow regime, their dispersion patterns differed. Vertically, the main gas dispersion field resembled an ellipse, whereas the main aerosol particles dispersion field resembled an anvil. Horizontally, gas was dispersed primarily perpendicular to the buildings, whereas aerosol particles were dispersed both perpendicular and parallel to the buildings.

关键词： aerosols Microplastics Dispersion Gas Wind tunnel

来源：评论

学校读者我要写书评

暂无评论

Composition of e-cigarette aerosols: A review and risk assessment of selected compounds

引用

JOURNAL OF APPLIED TOXICOLOGY 2025年第3期45卷 364-386页

作者： Heywood, Jonathan Abele, Grayson Langenbach, Blake Litvin, Sydney Smallets, Sarah Paustenbach, Dennis Paustenbach & Associates Denver CO USA Insight Exposure & Risk Sci Grp 1790 38th StSuite 201 Boulder CO 80301 USA Paustenbach & Associates Jackson WY 83001 USA

The potential harms and benefits of e-cigarettes, or electronic nicotine delivery systems (ENDS), have received significant attention from public health and regulatory communities. Such products may provide a reduced risk means of nicotine delivery for combustible cigarette smokers while being inappropriately appealing to nicotine naive youth. Numerous authors have examined the chemical complexity of aerosols from various open- and closed-system ENDS. This body of literature is reviewed here, with the risks of ENDS aerosol exposure among users evaluated with a margin of exposure (MoE) approach for two non-carcinogens (methylglyoxal, butyraldehyde) and a cancer risk analysis for the carcinogen N-nitrosonornicotine (NNN). We identified 96 relevant papers, including 17, 13, and 5 reporting data for methylglyoxal, butyraldehyde, and NNN, respectively. Using low-end (minimum aerosol concentration, low ENDS use) and high-end (maximum aerosol concentration, high ENDS use) assumptions, estimated doses for methylglyoxal (1.78x 10(-3)-135 mu g/kg-bw/day) and butyraldehyde (1.9x 10(-4)-66.54 mu g/kg-bw/day) corresponded to MoEs of 227-17,200,000 and 271-280,000,000, respectively, using identified points of departure (PoDs). Doses of 9.90x 10(-6)-1.99x 10(-4) mu g/kg-bw/day NNN corresponded to 1.4-28 surplus cancers per 100,000 ENDS users, relative to a NNN-attributable surplus of 7440 per 100,000 cigarette smokers. It was concluded that methylglyoxal and butyraldehyde in ENDS aerosols, while not innocuous, did not present a significant risk of irritant effects among ENDS users. The carcinogenic risks of NNN in ENDS aerosols were reduced, but not eliminated, relative to concentrations reported in combustible cigarette smoke.

关键词： aerosols butyraldehyde e-cigarette electronic nicotine delivery system ENDS margin of exposure methylglyoxal N-nitrosonornicotine risk assessment

来源：评论

学校读者我要写书评

暂无评论

Real-Time Detection of D-Glucose Molecules in Exhaled aerosols Using a Biochemical Sensor for Breathalyzer Applications

IEEE SENSORS LETTERS

引用

IEEE SENSORS LETTERS 2025年第4期9卷

作者： Sadeghi, Pardis Lobandi, Nader Alshawabkeh, Rania Rui, Amie Sun, William Chen, Juntong Luo, Bin Huang, Rui Sun, Nian X. Northeastern Univ WM Keck Lab Integrated Ferro Dept Elect & Comp Engn Bioengn Boston MA 02115 USA Winchester Technol LLC Burlington MA 01803 USA Brown Univ Dept Biomed Engn Providence RI 02912 USA

The growing prevalence of chronic diseases, such as diabetes, underscores the need for rapid, noninvasive monitoring technologies, as conventional methods are frequently invasive. Exhaled breath aerosol provides a noninvasive alternative to blood sampling for glucose monitoring, but its dilute nature demands highly sensitive sensors for micromolar-level detection. This study presents a novel biosensor utilizing a molecularly imprinted polymer designed to selectively target D-glucose molecules from exhaled breath aerosols. The sensor underwent thorough testing across a range of aerosolized glucose concentrations and was validated using exhaled breath condensate (EBC) samples from healthy subjects, utilizing a 3-D printed breathalyzer device. The findings demonstrate a significant correlation between D-glucose levels in EBC (aerosols) and sensor resistance.

关键词： Sensors Glucose Immune system Polymers Biosensors Testing Accuracy Blood Fluids aerosols Chemical and biological sensors aerosolized glucose diabetes exhaled breath condensate (EBC) electrochemical polymerization molecularly imprinted polymers (MIPs) noninvasive D-glucose monitoring

来源：评论

学校读者我要写书评

暂无评论

Examination of the traditional Raman Lidar technique II: evaluating the ratios for water vapor and aerosols: (vol 42,2593, 2003)

引用

APPLIED OPTICS 2025年第5期64卷 1265-1269页

作者： Whiteman, David n. Howard Univ Washington DC 20059 USA

Errors in ***. 42 , 2593(2003) [ CrossRef ] are correctedhere.

关键词： aerosols Backscattering Calibration Lidar Resolution Scattering

来源：评论

学校读者我要写书评

暂无评论

Characteristics of aerosols and planetary boundary layer dynamics during biomass burning season

引用

Natural Hazards 2025年 1-19页

作者： Shahid, Muhammad Zeeshaan Shahzad, Muhammad Imran Jaweria, Sundas Javed, Sadaf Zaib, Shah Shahid, Imran College of Earth and Environmental Sciences University of the Punjab Lahore Pakistan Earth & Atmospheric Remote Sensing Lab (EARL) Department of Meteorology COMSATS University Islamabad Islamabad 45550 Pakistan Key Laboratory of Environmental Monitoring and Pollutant Control of Xinjiang Bingtuan School of Chemistry and Chemical Engineering Shihezi University Shihezi 832003 China Environmental Science Center Qatar University P.O Box 2713 Doha Qatar

The northeastern region of Pakistan (NEP) has experienced increased haze episodes over the past decade, primarily due to enhanced biomass burning activities during the post-monsoon season. Economic growth, urbanization and industrial development also controbuted to high pollutants levels that leads to decline in air quality and visibility. These elevated pollution levels over NEP (69–75.5°E, 27.4–34°N) are influenced by both meteorological conditions and anthropogenic activities. This study investigates aerosol concentrations before, during, and after the haze episode during November 2021 using model simulations and remote sensing data. The Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), along with satellite observations from the Moderate Resolution Imaging Spectroradiometer (MODIS), are used for validation and analysis of this haze episode. The results illustrate the key contributors to this haze event and showed the there is significant increases in aerosol components such as sulfate, black carbon, organic carbon, dust and aerosol optical depth (AOD). The planetary boundary layer (PBL) height, measured with Ceilometer LIDAR, showed decreasing trend in height from October to December that support aerosol accumulation near the surface during the the month of November. This month is also biomass burning, crop residue burning, season in the region. These haze episodes also impacts the atmospheric visibility that dropped below 2 km in November. These findings provide key insights into the complex interactions between meteorology, emissions, and haze formation in NEP region, and will provide policy makers to design effective mittigation strategies. © The Author(s) 2025.

关键词： AERONET aerosols LIDAR MODIS Planetary boundary layer height

来源：评论

学校读者我要写书评

暂无评论

The impact of aerosols on the modification of winter raindrop characteristics in Northern Taiwan 8

The impact of aerosols on the modification of winter raindro...

引用

Remote Sensing of the Atmosphere, Clouds, and Precipitation VIII 2024

作者： Nguyen-DInh Hoang, Long Liu, Chian-Yi Chou, Charles C.-K. Chung, Kao-Shen TIGP-ESS NCU Taiwan RCEC Academia Sinica Taiwan Dept. AS NCU Taiwan

ISBN: (数字)9781510682672

ISBN: (纸本)9781510682665

The cloud-to-rain process has been proposed as highly temporal, while the in-depth research on this topic in the winter season and the variation due the air pollution remains underexplored in recent studies. On the basis of advanced instruments including the Parsivel-disdrometer and the Himawari 8/9 satellite, we investigated the raindrop size distribution and rain parameters of warming cloud rain during the winter seasons of 2022 and 2023 in Northern Taiwan. In addition, we selected subsamples under different air pollution scenarios which are based on the surface PM2.5 concentration thresholds. Preliminary analysis results suggested that rainfall under a warming cloud generally had tighter distributions with smaller drop sizes but higher concentrations compared to typical rain. In terms of rain rates, drizzle had higher concentrations of smaller drops, while light rain exhibited higher concentrations of larger drops and greater liquid water content. However, light rain under warming rain conditions showed a higher likelihood of forming large drops. The lower value of PM2.5 concentrations within warming cloud rain is a main reason to suppress the formation of larger raindrops and heavier rainfall. This result may cause the slightly intensity of precipitation as drizzle and light rain of warming cloud rain, revealing to the scavenging effect of precipitation due to the less availability of aerosol. Our studies encourage for understanding the relationship between cloud properties, aerosol concentrations, and rain parameters in high-temporal resolution can help improve weather forecasting and inform strategies to manage air quality and its impact on weather systems. © 2025 SPIE.

关键词： aerosols

来源：评论

学校读者我要写书评

暂无评论

Spatiotemporal characteristics of aerosols dispersion and the exposure risk of dental staff in a dental clinic with different ventilation strategies

JOURNAL OF HAZARDOUS MATERIALS ADVANCES

引用

JOURNAL OF HAZARDOUS MATERIALS ADVANCES 2025年 17卷

作者： Chen, Min Yang, Xianting Wuhan Univ Sci & Technol Sch Urban Construct Wuhan 430065 Hubei Peoples R China Wuhan Univ Sci & Technol Hubei Prov Engn Res Ctr Urban Regenerat Wuhan 430065 Hubei Peoples R China

Dental staff are exposed to occupational risks due to the unique diagnosis and treatment processes in dental clinics. It is crucial to implement appropriate ventilation strategies and airflow distribution techniques for the reduction of exposure risks. Based on the full-scale experiments and numerical simulation, this study conducted a comparative analysis of airflow distribution, aerosols diffusion and spatiotemporal distribution characteristics of aerosols in a typical dental clinic with three different ventilation strategies and seven different airflow distribution modes (displacement ventilation, stratum ventilation, and five different modes of mixing ventilation) in Wuhan, China. To assess the spatiotemporal characteristics of aerosols accurately, it proposed four indicators including suspension rate, deposition rate, exclusion rate, and inhalation exposure. The results demonstrated that the aerosol exclusion rate exhibited the highest value (64.3 %), while the suspension rate displayed the lowest value (1.8 %). In the dental clinic, employing a mixing ventilation strategy with air supplied and exhausted from the ceiling resulted in the lowest non-dimensional concentration of pollutants in the breathing area. The position of the air exhaust louvre has a significant impact on airflow distribution. The aerosol exclusion rate is higher when the exhaust vent is located on the upper side compared to when it is on the lower side. The maximum aerosol deposition rates are located at the ceiling, floor, and walls, in addition, the deposition rates on the doctor and assistant side is also higher, with the highest being 23.8 pcs/m2 and 20.2 pcs/m2 respectively. Inhalation exposure risk for dental staff generally peaked at t = 60-80 s. Specifically, under stratum ventilation conditions, the doctor experienced their highest exposure risk of 70.2 x 10-10 mu g/kg at t = 60 s, whereas for assistants it occurred at t = 120 s with an exposure risk of 31.9 x 10-10 mu g/kg. Furthe

关键词： aerosols Spatiotemporal distribution Ventilation strategy Exposure risk Dental clinic

来源：评论

学校读者我要写书评

暂无评论

Source and characteristics of inorganic acidic gases and aerosols emission in a semiconductor plant

引用

Separation and Purification Technology 2025年第Part2期354卷

作者： Peng, Jyun-Lun Yeh, Ming-Peng Liu, Kuan-Hung Chen, Tony Chuang, Tzu-Sou Lee, Sher Ling Tung, Kuo-Lun Environmental Lab. Taiwan Semiconductor Manufacturing Company Ltd. Taichung407 Taiwan Industry Safety & Health Department Taiwan Semiconductor Manufacturing Company Ltd. Taichung407 Taiwan Facility Division Taiwan Semiconductor Manufacturing Company Ltd. Hsinchu300 Taiwan Department of Chemical Engineering National Taiwan University Taipei106 Taiwan

Inorganic acids, widely used in semiconductor manufacturing processes, have become a concern as improper handling of these acids can have severe environmental impacts. This study investigates the major contamination source of inorganic acids (hydrofluoric acid, hydrochloric acid, nitric acid, phosphoric acid, and sulfuric acid), the different ratios of solid and gaseous inorganic acids, and the particle size distribution of solid particles emitted after local scrubber (LSC) treatment. An assessment of pollutant status revealed that hydrofluoric acid emissions dominate in the chemical vapor deposition (CVD) process at 65%, hydrochloric acid in the diffusion (DIFF) process at 69%, phosphoric acid in the epitaxy (EPI) process at 100%, and sulfuric acid in wet etching at 85%. In contrast, particulate matter constitutes the primary component, ranging from 82% to 99% of the LSC emission. The LSC configuration is then adjusted based on the overview of inorganic acid emissions from different processes to match their characteristics. After related improvement activities, the results presented a significant reduction of 56% to 87% in inorganic acid emissions at the outlet of the LSC, and 18-68% reduction in the stack emissions. © 2024 Elsevier B.V.

关键词： aerosols

来源：评论

学校读者我要写书评

暂无评论

Dose- and Time-Dependent Effects of Different Nickel-Based Thermal Spray Coating aerosols on Lung Toxicity and Histopathology Using an Animal Inhalation Model

SSRN

引用

SSRN 2025年

作者： Antonini, James M. Afshari, Aliakbar A. Meighan, Terence G. McKinney, Walter G. Zeidler-Erdely, Patti C. Erdely, Aaron Friend, Sherri Lee, Eun Gyung Moore, Rebecca Kodali, Vamsi Health Effects Laboratory Division National Institute for Occupational Safety and Health MorgantownWV26508 United States Respiratory Health Division National Institute for Occupational Safety and Health MorgantownWV26508 United States Inotiv-RTP MorrisvilleNC27560 United States Centers for Disease Control and Prevention United States

Thermal spray coating is an emerging occupational process. Information about the health effects of the aerosols generated is limited. A thermal spray coating exposure system has been developed to perform inhalation studies that simulate workplace exposures. Sprague-Dawley rats were exposed to aerosols generated during thermal spray coating using two nickel (Ni)-based consumables - PMET885 and PMET876. Cumulative target concentrations [exposure concentration (C;mg/m3) x exposure time (T;hr)] were: (1) HIGH – 400 mg/m3 (25 mg/m3 x 4 hr/d x 4 d);(2) MIDDLE – 80 mg/m3 (5 mg/m3 x 4 hr/d x 4 d);(3) LOW – 16 mg/m3 (4 mg/m3 x 4 hr/d x1 d). At 4 and 30 d post-exposure, lung toxicity was assessed by bronchoalveolar lavage and histopathology. Metal composition was: PMET885 (97% Ni, 2% Al) and PMET876 (56% Ni, 17% Cr, 17% Mo, 5% Fe, 3% Mn). Inhalation exposure to the Ni-based thermal spray coating aerosols caused significant lung toxicity in a dose- and time-dependent manner. The PMET885 aerosol was the more pneumotoxic. Lung fibrosis was observed after exposure to the PMET885 aerosol but not PMET876. The varied lung responses observed were dependent on the metal composition and solubility properties of the generated particles. © 2025, The Authors. All rights reserved.

关键词： aerosols

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：