Article
Environmental Sciences
Cassandra Johannessen, Paul Helm, Chris D. Metcalfe
Summary: The study found that road runoff can transport chemicals from tire wear into receiving waters, posing a threat to aquatic organisms.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Donghai Yuan, Linghao Zhao, Chenling Yan, Jijiao Zhou, Yanqi Cui, Ruiying Wu, Jun Cui, Jiazhuo Wang, Chen Wang, Yingying Kou
Summary: The abundance and characteristics of microplastics in storm-drain inlet sediments were analyzed in three functional districts (agricultural, commercial, and residential) from Beijing South 2nd Ring Road to South 6th Ring Road. The collected samples had a range of microplastic abundance from 1121 to 7393 items/m3. The commercial area had the highest abundance (11094 items/m3), while the agricultural area had the lowest (833 items/m3). The microplastics were mainly fragments, accounting for 50.4%, with microplastics of less than 1 mm accounting for 74.8%. The majority of detected polymers were PET, PS, and PP. Overall, these results provide baseline data and guidelines for controlling microplastic pollution in urban runoff.
ENVIRONMENTAL RESEARCH
(2023)
Article
Water Resources
Sagar M. Kumar, N. Umamahesh
Summary: Due to the dual pressure of rapid urbanization and climate change, urban flooding has become more common. This study used the PCSWMM model to investigate flood inundation in Hyderabad and prioritize the critical sub-catchments using the CPM method and PCSWMM. The simulation results were satisfactory and in agreement with field data and social media markers. The integrated PCSWMM model was used to examine inundation velocity and depth, and a UFH map was generated to identify optimal LIDS. Overall, the study emphasizes the importance of effective planning and mitigation strategies for urban flooding.
Article
Chemistry, Multidisciplinary
Lariyah Mohd Sidek, Lloyd Hock Chye Chua, Aqilah Syasya Mohd Azizi, Hidayah Basri, Aminah Shakirah Jaafar, Wei Chek Moon
Summary: The study aimed to simulate urban flood scenarios in Malaysia's urbanized catchments in response to the increasing frequency and intensity of floods driven by climate change and urbanization. By using the PCSWMM model for flood simulation of the Damansara catchment, an integrated hydrologic-hydraulic model was developed and validated. The research findings demonstrated the effectiveness of current drainage systems in reducing flood risk caused by drainage overflow compared to historic drainage systems.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Roberto Jimenez, Ana Lopez, Amaya Lobo, Inaki Tejero
Summary: This research introduces a new methodology for determining the retention volumes of runoff water in storage tanks designed for storm sewer overflows. The study utilizes the Stormwater Management Model (SWMM) to generate hydrographs and runoff pollutographs for an imaginary urban basin. By simulating three pollutants (TS, BOD5, and TN) under a given set of rainfall conditions, the values of proposed characterization variables for the obtained pollutographs are analyzed. Correlation and determination coefficients between different variables are examined, along with multivariate characterization using PCA and cluster analysis. In the case study, IDF curves of a specific city are used to assign probabilities of occurrence (Tr) to the values of the proposed characterization variables. Impact evaluation variables (IEVs) are established based on the proposed characterization variables, and the discharge into a receiving water body is simulated to assess the impact and identify the most unfavorable pollutographs within the selected rainfall events. Finally, a storm sewer overflow is simulated to determine the maximum flow for purification and to size retention tanks for different fractions of the total runoff volume, aiming to control the maximum values of a specific IEV impact evaluation variable. With a design return period of Tr-ssd >= 10 years, the results of the case study were 146.50 m(3)/ha imp for 100% retention and 117.20 m(3)/ha imp for 80% retention.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Environmental Sciences
Nathan D. Sy, Meixian Cao, Matthew Hall, Parminder Kaur, Qingyang Shi, Yaxin Xiong, Jay Gan
Summary: Surface water runoff in urban areas can transport contaminants to urban surface water, and the prevalence of impervious surfaces exacerbates this issue. This study investigates the presence and distribution of pyrethroid insecticides in an urban drainage system in Los Angeles County, California. The results show that pyrethroid concentrations were detected in water samples in 89% of the cases, as well as in all sediment, algae, and biofilm samples. The study highlights the role of underground catch basins as a sink and secondary source of pyrethroid contaminants. Preventing the input of these contaminants into catch basins is crucial for maintaining the water quality of urban surface waters.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Jiaxun Guo, Ping Zuo, Long Yang, Lachun Wang, Hong Yang
Summary: This study investigated the nitrogen concentrations and dynamic changes of nitrate sources in different urban functional areas in Wuxi, China. The results showed that N concentrations in pipeline runoff and channels were higher than those in surface runoff, and the main nitrate sources varied between different runoff stages. These findings provide important insights for mitigating non-point source water pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Lifeng Yuan, Anne M. Mikelonis, Eugene Yan
Summary: This study evaluated potential contaminant levels and migration pathways of spores spread by urban stormwater for emergency preparedness in the event of a biological agent terrorist attack or accidental pathogen release. A Storm Water Management Model (SWMM) was used to assess spore concentrations in stormwater runoff from different surfaces. The calibrated SWMM model successfully simulated spore concentrations in runoff, providing insights for emergency planning and remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Linhan Yang, Jianzhu Li, Keke Zhou, Ping Feng, Lixin Dong
Summary: This study monitored five rainfall events to clarify the characteristics of land surface pollution and pollution variation in urban rivers. The simulated results showed that with an increase in return period, the volume of runoff increased while the concentration of pollutants decreased, mainly due to dilution effects and reduced residence time of pollutants in rivers.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Water Resources
Takele Sambeto Bibi, Kefale Gonfa Kara, Habtamu Jima Bedada, Robera Daba Bededa
Summary: This study used the PCSWMM model to investigate the potential effects of climate change and land-use change on urban flooding management. The findings showed that the increased imperviousness and simulated peak runoff due to land-use change and climate change could lead to increased flooding volume in the study area. The adoption of low-impact developments was found to be effective in reducing the effects of flooding.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2023)
Article
Construction & Building Technology
Xinhui Ju, Weifeng Li, Junran Li, Liang He, Jingqiao Mao, Lijian Han
Summary: This study used integrated spatial models to simulate the combined effects of climate change and urban growth on surface runoff in the Beijing-Tianjin-Hebei urban agglomeration in China in 2030. The results showed that both climate change and urban growth contribute to an increase in surface runoff, but their relative contributions vary at different scales.
SUSTAINABLE CITIES AND SOCIETY
(2023)
Article
Environmental Sciences
Haibin Yan, David Z. Zhu, Mark R. Loewen, Wenming Zhang, Shuntian Liang, Sherif Ahmed, Bert van Duin, Khizar Mahmood, Stacey Zhao
Summary: Understanding the impact of rainfall characteristics on urban stormwater quality is crucial. A data mining framework was proposed to study this relationship and a rainfall type-based calibration approach was developed to improve water quality models. The results showed that antecedent dry days, average rainfall intensity, and rainfall duration were key factors affecting stormwater quality. The K-means clustering method effectively classified rainfall events into representative types. The rainfall type-based calibration approach significantly improved model accuracy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Water Resources
Julia L. A. Knapp, Christa Kelleher
Summary: Short-term increases in stream temperature in response to storm events in urban areas are influenced by factors such as pre-event conditions, rainfall-runoff characteristics, and the shape of the hydrograph. Understanding these factors has important implications for urban hydrology and identifying different water sources and pathways in urban catchments.
HYDROLOGICAL PROCESSES
(2023)
Article
Engineering, Civil
Chao Ma, Zifan Chen, Kai Zhao, Hongshi Xu, Wenchao Qi
Summary: Urban flood risk assessment is crucial for urban disaster management. Traditionally, only the area itself is considered in the evaluation, but this study proposes a conceptual model that takes into account the risks caused by road inundation and subsequent traffic jams. Using Haidian Island as an example, the study demonstrates that considering triggered risks reduces the overall risk in the outer ring subregions. This novel approach provides insights for flood risk assessment.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Civil
Tiago Souza Mattos, Paulo Tarso S. Oliveira, Leonardo de Souza Bruno, Nilo Dinis de Oliveira, Jose G. Vasconcelos, Murilo Cesar Lucas
Summary: This study evaluated the impact of low-impact development (LID) practices on the resilience of stormwater drainage systems under climate change scenarios in a tropical watershed in Brazil. Results showed that LID combinations can significantly reduce runoff peak and improve the system's resilience against flooding.
JOURNAL OF HYDROLOGIC ENGINEERING
(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)