Article
Multidisciplinary Sciences
Barbara A. Maher, Tomasz Gonet, Vassil V. Karloukovski, Huixia Wang, Thomas J. Bannan
Summary: Exposure to traffic-related particulate air pollution has been linked with various health issues, and children attending schools near busy roads may face higher risks. Installing roadside vegetation can reduce airborne particulate matter (PM) concentrations, but it can also impede airflow and increase PM dispersion. Optimizing the selection of plant species with high particle deposition velocity is critical for efficient PM removal. This study demonstrates that roadside vegetation can effectively improve air quality at the local scale by optimizing PM deposition on plant leaves.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Khaled Hashad, Jiajun Gu, Bo Yang, Morena Rong, Edric Chen, Xiaoxin Ma, K. Max Zhang
Summary: This study investigated five machine learning methods to predict the impact of vegetation barrier designs on particle concentrations, showing that random forest, neural networks, and XGBoost performed well and could aid communities in developing strategies to mitigate TRAP problems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Tie Zheng, Yue-Ping Jia, Shaojun Zhang, Xiao-Bing Li, Ye Wu, Cui-Lin Wu, Hong-Di He, Zhong-Ren Peng
Summary: The study found that dense vegetation created an accumulation area of particle pollutants on sidewalks and bike paths, while porous vegetation had weak interception effects on pollutants. The results suggest that vegetation can improve air quality away from it but may worsen air quality close to it.
ENVIRONMENTAL POLLUTION
(2021)
Article
Ecology
Khaled Hashad, Bo Yang, John Gallagher, Richard Baldauf, Parikshit Deshmukh, K. Maz Zhang
Summary: This study examines the impact of roadside green infrastructure on traffic-related air pollution reduction. Through simulations and synthesis of field measurements, the study finds that vegetation barriers at heights of 4-6 meters achieve the most effective pollutant reduction. The study provides five recommendations for implementing roadside vegetation barriers in landscape and urban planning.
LANDSCAPE AND URBAN PLANNING
(2023)
Article
Environmental Sciences
Stephen Matheson, Robert Fleck, Thomas Lockwood, Raissa L. Gill, Peter J. Irga, Fraser R. Torpy
Summary: This study evaluates the potential of a commercial small green wall system in removing volatile organic compounds, especially gasoline vapour. The results demonstrate the system's ability to effectively remove a wide variety of harmful compounds and reduce benzene derivatives concentrations.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Construction & Building Technology
Phoebe Mankiewicz, Aleca Borsuk, Christina Ciardullo, Elizabeth Henaff, Anna Dyson
Summary: Emerging data suggests that incumbent air handling systems are inadequate in addressing common indoor air quality problems. Active plant-based systems may offer a solution, but further research is needed to understand the significance of species selection and growth media design in effectively improving indoor air quality. This study investigates the trade-offs between CO2 sequestration and CO2 production in plant-based systems using different species and growth media designs.
ENERGY AND BUILDINGS
(2022)
Article
Engineering, Environmental
Thomas Pettit, Fraser R. Torpy, Nicholas C. Surawski, Robert Fleck, Peter J. Irga
Summary: The study shows that botanical biofiltration technology can effectively filter roadside air pollutants, including NO2, O3, and PM2.5, with removal efficiency positively correlated with ambient concentrations. This technology has great potential in improving air quality, promoting sustainable urban development, and enhancing public health outcomes.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Amir Nejatian, Masoud Makian, Mohammad Gheibi, Amir M. Fathollahi-Fard
Summary: The study focuses on the impact of implementing green city concept in Mashhad, Iran on air pollution. The results show that the vegetation area is positively correlated to clean and healthy days, and negatively correlated to unhealthy days in the city. The increase in NDVI, EVI, and OSAVI is indicative of the positive effect of green space on air quality.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Plant Sciences
Sergio Vera, Margareth Viecco, Hector Jorquera
Summary: This study evaluated the impact of biodiverse green roofs and green walls on PM2.5 capture. The results showed that higher biodiversity of plants in green roofs and green walls resulted in higher PM2.5 capture, especially for species with lower capture rates in monocultures. Polycultures may be more effective in long-term reduction of high PM2.5 concentrations.
URBAN FORESTRY & URBAN GREENING
(2021)
Article
Forestry
Ning Dang, Handan Zhang, Haimei Li, Mir Md Abdus Salam, Guangcai Chen
Summary: Increased traffic volumes in urban areas have led to higher levels of atmospheric particulates, primarily due to auto exhaust and dust. Roadside plants in Hangzhou can effectively retain particulate matter and accumulate metals, with different species showing varying capacities. Seasonal variations were observed, with higher retention in winter and lower retention in spring. The particles found on leaf surfaces were mainly irregular, such as mineral fragments, soot aggregates, and fly ash particles. The five tree species evaluated had different levels of heavy metal accumulation, with Loropetalum chinense and Pittosporum tobira showing the strongest overall capacity for retaining particulate matter and heavy metals.
Review
Environmental Sciences
Yuhan Huang, Chengwang Lei, Chun-Ho Liu, Pascal Perez, Hugh Forehead, Shaofei Kong, John L. Zhou
Summary: This paper reviews the mechanisms controlling vehicle emission dispersion in urban street canyons and the strategies for managing roadside air pollution. Key factors influencing air pollution in street canyons include traffic conditions, canyon geometry, weather conditions, and chemical reactions. Mitigation strategies include traffic interventions and city planning, with the latter having a more significant impact on pollutant dispersion.
ENVIRONMENTAL POLLUTION
(2021)
Article
Plant Sciences
Naomi J. Paull, Daniel Krix, Peter J. Irga, Fraser R. Torpy
Summary: This study examined the health of various plant species exposed to ambient air pollution, finding that most species were able to withstand pollution exposure without adverse effects. However, the responses to pollution varied across plant species, and an overall distinction of the most tolerant species could not be made.
URBAN FORESTRY & URBAN GREENING
(2021)
Article
Environmental Sciences
Xin Chen, Jie Wu, Wenbin Yang, Zhanyong Wang, Shuting Chen, Xisheng Hu, Kaifa Lu, Zhongmou Fan, Mei Lin, Pu Chen
Summary: Green barriers are considered a viable strategy for improving road air quality. This study found that green barriers can significantly reduce PM2.5 levels, especially in vegetation-rich areas, through field measurements and simulations.
Article
Remote Sensing
Hongyuan Huo, Fei Chen
Summary: The rapid urbanization has a serious impact on the urban ecological environment, making it crucial to conduct numerical simulation research on the urban spatial thermal environment for its improvement. Currently, there is limited research on the influence and accuracy evaluation of different vegetation settings in computational fluid dynamics (CFD) on simulation results. This study utilizes Gaofen-2 remote sensing data and a CFD model to simulate and analyze the wind and heat environment at the block scale. Different vegetation models, including cold source, constant temperature wall, and porous medium, are used to simulate the 3D spatial thermal environment based on their heat transfer and cooling mechanisms. The research findings indicate that temperature distribution has a strong correlation with wind direction and that the performance of vegetation as a wall model is optimal at heights below 2 m, while the wind and heat environment results are similar for the three setting methods above 5 m. The wind environment results of the same vegetation setting vary at different heights.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2023)
Article
Construction & Building Technology
Md Sazan Rahman, Sarah MacPherson, Mark Lefsrud
Summary: A new type of green wall made of bio-receptive porous concrete tiles was tested for its evaporative cooling effect. By growing ryegrass on its surface and allowing air to pass through, the wall was able to provide energy-efficient cooling in high temperature conditions.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Environmental Sciences
Shimul Roy, Yun Fat Lam, Ngo Tho Hung, Johnny C. L. Chan, Joshua S. Fu
Summary: The emission inventories for Vietnam Thermal Power Plants developed in 2010 and 2015 showed coal-fired power plants had the highest emissions and the largest uncertainty in NOx. The Red River Delta region had the largest emissions of CO2, N2O, SO2, NOx, PM10, PM2.5, BC, and OC from coal-fired TPPs, while the Southeast region had the largest sources of CO, NMVOC, and CH4 caused by gas-fired TPPs. The growths of NOx, CO, NMVOC, PM10, PM2.5, BC, OC, CO2, CH4, and N2O emissions increased significantly from 2010 to 2015, while there was a 19% reduction in SO2 emissions due to the decommissioning of oil-fired TPPs.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Hongsheng Zhang, Yinyi Lin, Shan Wei, Becky P. Y. Loo, P. C. Lai, Yun Fat Lam, Luoma Wan, Yu Li
Summary: This study investigates the impacts of the COVID-19 pandemic on global air quality through examining global nitrogen dioxide (NO2) dynamics. The findings show the association between lockdown policies and NO2 concentration in different countries.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Wanlu Ouyang, Tobi Eniolu Morakinyo, Chao Ren, Sheng Liu, Edward Ng
Summary: Greenery infrastructure (GI) is crucial for the sustainable development of cities and communities. This study compared the thermal-irradiant performance of three typical GI typologies and found that ground trees experienced the smallest thermal-irradiant average and variation among the three types, while the morning session had the largest thermal-irradiant reduction and variations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Yun Fat Lam, Chung-Wo Ong, Man -Hon Wong, Wai-Fun Sin, Cheuk-Wai Lo
Summary: The Community Weather Information Network (Co-WIN) was established by HKO and PolyU in 2007 to promote weather and climate education. Co-WIN operates over 100 AWSs in densely populated areas of Hong Kong, providing a large set of potentially useful weather data for urban climate research.
Article
Environmental Sciences
Jeffrey Man-Hei Chang, Yun Fat Lam, Stephen Po-Wing Lau, Wai-Kin Wong
Summary: The study developed an Urban Microscale Temperature Forecast (UMTF) model, which downscales daily temperature extremes of 10-km ensemble forecast into 50-m resolution across Hong Kong with high accuracy. Comparison with other datasets demonstrates the effectiveness of the model in a heterogeneous urban environment.
Review
Construction & Building Technology
Zhixin Liu, Wenwen Cheng, C. Y. Jim, Tobi Eniolu Morakinyo, Yuan Shi, Edward Ng
Summary: Urban green and blue infrastructures are seen as effective tools for mitigating urban heat stress and enhancing human thermal comfort. The use of ENVI-met software in GBI research follows a three-step workflow of modeling, validation, and scenario simulation. A comprehensive review of 79 studies utilizing ENVI-met as the primary tool was conducted, focusing on data sources, indicator selection, analytical approaches, and recommendations for improving research workflows.
BUILDING AND ENVIRONMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Chao Ren, Kai Wang, Yuan Shi, Yu Ting Kwok, Tobi Eniolu Morakinyo, Tsz-cheung Lee, Yuguo Li
Summary: This study examined the UHI and UCI characteristics in Hong Kong during warm periods from 2000 to 2018, finding that both effects are exacerbated during extreme heat events. By mapping the UHIdh and UCIdh spatial patterns, a deeper understanding of their spatial characteristics during extreme heat events was achieved.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Construction & Building Technology
Hugo Wai Leung Mak, Yun Fat Lam
Summary: Data Openness is crucial for scientific innovation, community engagement and smart city development. A Data Openness in Air Quality (DOAQ) framework with 23 open data principles was established to assess air quality information sharing in top smart cities. The study found a strong correlation between air quality reporting and environmental data openness in cities, and provided guidelines for future smart city development in air quality reporting.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Environmental Sciences
Yun-Fat Lam, Jeffrey M. H. Chang, Becky P. Y. Loo, Hong-Sheng Zhang, Kenneth K. M. Leung, Kay W. Axhausen
Summary: A study of 15 cities across the world during the COVID-19 pandemic found substantial variations in the public health co-benefits of reducing PM2.5 pollution, depending on factors such as seasonal air quality and population baselines. While non-pharmaceutical interventions had no co-benefits in North American cities due to being implemented during a low pollution season, significant health benefits were observed in cities with high PM2.5 levels and large populations, such as in India and China.
Article
Green & Sustainable Science & Technology
S. Roy, Y. F. Lam, M. U. Hossain, J. C. L. Chan
Summary: The electricity generation in developing countries heavily relies on fossil fuels, resulting in significant greenhouse gas emissions. This study projected and evaluated the benefits of adopting green and renewable energy sources in Vietnam, showing substantial reductions in emissions. This is an important finding for developing countries that are seeking to combat climate change and reduce their carbon footprint.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Environmental Sciences
Yun Fat Lam, Hung Ming Cheung
Summary: This study investigates the influence of Long-range Transport (LRT) and Stratosphere-Troposphere Transport (STT) on Policy Relevant Background (PRB) ozone in East Asia. The results show that both LRT and STT contribute to the increase in surface background ozone. STT has the most significant impact during spring, while Beijing and Guangzhou experience the most substantial anthropogenic enhancement in ozone during summer.
Article
Environmental Sciences
Shimul Roy, Yun Fat Lam, Johnny C. L. Chan, Ngo Tho Hung, Joshua S. Fu
Summary: Emission reduction in the thermal power sector is a top priority for the Vietnam government to combat climate change and air pollution. However, the intensive use of coal-fired power plants is expected to lead to an increase in carbon emissions. Although effective pollution controls are expected to decrease NOx emissions, there are still challenges in achieving carbon neutrality in Vietnam.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Yun Fat Lam, Chi Chiu Cheung, Xuguo Zhang, Joshua S. Fu, Jimmy Chi Hung Fung
Summary: A new method for reallocating industrial sources was developed, leading to improved accuracy in simulating air quality, especially for emissions in China. By reallocation of industrial emissions, more realistic spatial patterns were provided, resulting in reduced root mean square error (RMSE) compared to population-based methods.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Na Zhao, Xinyi Dong, Kan Huang, Joshua S. Fu, Marianne Tronstad Lund, Kengo Sudo, Daven Henze, Tom Kucsera, Yun Fat Lam, Mian Chin, Simone Tilmes
Summary: Black carbon (BC) emissions play a key role in regional climate change in the Arctic, with long-range transport from regions outside the Arctic impacting BC concentrations significantly. Reductions in anthropogenic BC emissions from different source regions in 2010 showed varying impacts on Arctic BC concentrations and surface temperature, with East Asia having the most significant influence. The sensitivity of Arctic temperature to BC emission reductions was found to be substantially higher than global temperature, emphasizing the importance of curbing global BC emissions for slowing down surface warming in the Arctic.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Development Studies
Shimul Roy, Yun Fat Lam, Ngo Tho Hung, Johnny C. L. Chan
Summary: This study developed updated emission inventories for road transportation in Vietnam, finding that motorcycles and diesel trucks are the main sources of emissions. Future policy interventions are expected to lead to emission reductions of 11%-125% by 2030, pushing Vietnam towards environmental sustainability.
SUSTAINABLE DEVELOPMENT
(2021)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
