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Study on Ship-based Atmospheric Pollutant Emission Forecasting for Environmental Impact Assessment in Port Planning

IOP Conference Series: Earth and Environmental Science 2021年第3期781卷

作者： Yonglin Zhang Yue Li Mingjun Li Xiaowen Yang Jinxiang Cheng Honglei Xu Transport Planning and Research Institute Ministry of Transport Laboratory of Transport Pollution Control and Monitoring Technology Beijing 100028 China

Vessels are major contributors to port-related atmospheric pollution. In recent years, as the environmental impact assessment s(hereinafter as EIA) in port planning become increasingly standardized, the lens on atmospheric pollution in EIA has gradually broadened from loading and unloading, piling and storage by cargo types to include the impact of ship emissions. However, the impact analysis ship-based atmospheric pollutants in port areas lack quantitative methodologies for accurate calculation, in particular where annual forecasting is commissioned in annual planning. By combining the characteristics of Chinese port planning and mainstream calculation methods of ship emissions in the world, the study arrives at several recommendations on selecting methodologies for the calculating of ship-based emissions in the EIA process that are tailored different planning scenarios and data availability, serving as reference for EIA practitioners in their endeavors to calculate the atmospheric pollutant emissions from ships in the EIA process mandated by port planning.

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Spatial variations in CO2 fluxes in a subtropical coastal reservoir of Southeast China were related to urbanization and land-use types

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Journal of Environmental Sciences 2021年第11期33卷 206-218页

作者： Yifei Zhang Min Lyu Ping Yang Derrick Y.F.Lai Chuan Tong Guanghui Zhao Ling Li Yuhan Zhang Hong Yang Key Laboratory of Humid Subtropical Eco-geographical Process of Ministry of Education Fujian Normal UniversityFuzhou 350007China School of Geographical Sciences Fujian Normal UniversityFuzhou 350007China Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130102China School of Urban and Rural Construction Shaoyang UniversityShaoyang 422000China Department of Geography and Resource Management The Chinese University of Hong KongHong KongChina College of Environmental Science and Engineering Fujian Normal UniversityFuzhou 350007China Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control(AEMPC)School of Environmental Science and EngineeringNanjing University of Information Science and TechnologyNanjing 210044China Department of Geography and Environmental Science University of ReadingReading RG66AB United Kingdom

Carbon dioxide(CO_(2))emissions from aquatic ecosystems are important components of the global carbon cycle,yet the CO_(2)emissions from coastal reservoirs,especially in developing countries where urbanization and rapid land use change occur,are still poorly *** this study,the spatiotemporal variations in CO_(2)concentrations and fluxes were investigated in Wenwusha Reservoir located in the southeast coast of ***,the mean CO_(2)concentration and flux across the whole reservoir were 41.85±2.03μmol/L and 2.87±0.29 mmol/m2/h,respectively,and the reservoir was a consistent net CO_(2)source over the entire *** land use types and urbanization levels in the reservoir catchment significantly affected the input of exogenous carbon *** mean CO_(2)fluxwasmuch higher from waters adjacent to the urban land(5.05±0.87 mmol/m2/hr)than other land use *** with larger input of exogenous substance via sewage discharge and upstream runoff were often the hotspots of CO_(2)emission in the *** results suggested that urbanization process,agricultural activities,and large input of exogenous carbon could result in large spatial heterogeneity of CO_(2)emissions and alter the CO_(2)biogeochemical cycling in coastal *** studies should characterize the diurnal variations,microbial mechanisms,and impact of meteorological conditions on reservoir CO_(2)emissions to expand our understanding of the carbon cycle in aquatic ecosystems.

关键词： Carbon dioxide fluxes Spatiotemporal dynamics Land use Urbanization Anthropogenic activities Coastal reservoir

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Temperature dependence of the rain-gas and snow-gas partition coefficients for nearly a thousand chemicals

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Chemosphere 2024年 362卷 142565页

作者： Yang, Pu-Fei Ma, Wan-Li Xiao, Hang Hansen, Kaj M. Wang, Liang Sun, Jing-Jing Liu, Li-Yan Zhang, Zi-Feng Jia, Hong-Liang Li, Yi-Fan State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology Harbin150090 China Harbin150090 China Harbin150090 China Department of Environmental Science Aarhus University Roskilde4000 Denmark Key Laboratory of Urban Environment and Health Ningbo Observation and Research Station Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control CAS Haixi Industrial Technology Innovation Center in Beilun Ningbo315800 China Laboratory of Marine Ecological Environment Early Warning and Monitoring Third Institute of Oceanography Ministry of Natural Resources Xiamen361005 China College of Environmental Science and Engineering Dalian Maritime University Dalian116026 China IJRC-PTS-NA TorontoONM2J 3N8 Canada

Compared to the particle-gas partition coefficients (KPG), the rain-gas (KRG) and snow-gas (KSG) partition coefficients are also essential in studying the environmental behavior and fate of chemicals in the atmosphere. While the temperature dependence for the KPG have been extensively studied, the study for KRG and KSG are still lacking. Adsorption coefficients between water surface-air (KIA) and snow surface-air (KJA), as well as partition coefficients between water-air (KWA) and octanol-air (KOA) are vital in calculating KRG and KSG. These four basic adsorption and partition coefficients are also temperature-dependent, given by the well-known two-parameters Antoine equation logKXY = AXY + BXY/T, where KXY is the adsorption or partition coefficients, AXY and BXY are Antoine parameters (XY stand for IA, JA, WA, and OA), and T is the temperature in Kelvin. In this study, the parameters AXY and BXY are calculated for 943 chemicals, and logKXY can be estimated at any ambient temperature for these chemicals using these Antoine parameters. The results are evaluated by comparing these data with published experimental and modeled data, and the results show reasonable accuracy. Based on these coefficients, temperature-dependence of logKRG and logKSG is studied. It is found that both logKRG and logKSG are linearly related to 1/T, and Antoine parameters for logKRG and logKSG are also estimated. Distributions of the 943 chemicals in the atmospheric phases (gas, particle, and rain/snow), are illustrated in a Chemical Space Map. The findings reveal that, at environmental temperatures and precipitation days, the dominant state for the majority of chemicals is the gaseous phase. All the AXY and BXY values for logKSG, logKRG, and basic adsorption and partition coefficients, both modeled by this study and collected from published work, are systematically organized into an accessible dataset for public utilization. © 2024 Elsevier Ltd

关键词： Rain

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Corrigendum to “Transitions and suggestions for China's coastal port reclamation policies” [Ocean Coast. Manage. 236 (Feb 2023)]

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Ocean & Coastal Management 2023年 237卷

作者： Nan Wang Gaoru Zhu Xinyang Li Jinxiang Cheng Wenbin Yi Shengqiang Liu Zhenglei Xie College of Marine Science and Engineering Nanjing Normal University Nanjing Jiangsu China Laboratory of Transport Pollution Control and Monitoring Technology Transport Planning and Research Institute Ministry of Transport of the People's Republic of China Beijing 100028 China Key Laboratory of Coastal Salt Marsh Ecosystems and Resources Ministry of Natural Resources Nanjing 210023 China

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An XGBoost-SHAP framework for identifying key drivers of urban flooding and developing targeted mitigation strategies

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Ecological Indicators 2025年 175卷

作者： Fu, Xiaoping Wang, Mo Zhang, Dongqing Chen, Furong Peng, Xiaotao Wang, Lie Tan, Soon Keat College of Architecture and Urban Planning Guangzhou University Guangzhou510006 China Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control School of Environmental Science and Engineering Guangdong University of Petrochemical Technology Guangdong Maoming525000 China Department of Construction Economics and Management Guangzhou Urban Construction Vocational School Guangzhou510006 China Key Laboratory of Natural Resources Monitoring in Tropical and Subtropical Area of South China Ministry of Natural Resources Guangzhou510663 China Art School Hunan University of Information Technology Hunan Changsha410151 China School of Civil and Environmental Engineering Nanyang Technological University Singapore639798 Singapore

Urban flooding is a multifaceted and severe issue, exacerbated by global climate change and urban expansion. Hence, it is imperative to investigate effective strategies for mitigating the urban flooding risk. This research proposes an innovative framework to recognize the driving factors and evaluate the impact of land cover changes on urban flooding, using a machine learning simulation model in the Guangdong-Hong Kong-Macao Greater Bay Area (GBA). The results indicated that approximately 19.8% of the investigated areas are exposed to high-risk, predominantly in the densely populated urban center of the GBA. In terms of identifying driving factors, impervious surface percentage (ISP) and fractional vegetation cover (FVC) are the primary driving factors of urban flooding. Converting impervious surface (IS) into green space (GS), the areas exposed at medium- and high-risk of flooding in the urban–rural fringe were significantly reduced, while no significant alterations were observed in the areas at very high-risk induced by urban flooding in the central city. By contrast, converting GS into IS significantly increased the areas exposed to very high-risk in the central city. In addition, we proposed optimization strategies for effectively mitigating urban flooding, based on the distribution and regional characteristics of flooding in the central city, rural–urban fringe and rural areas, respectively. This study provides urban planners and designers with valuable insights into how land cover management and green infrastructure can be leveraged to address urban flooding, thus offering practical guidance for sustainable urban development in rapidly urbanizing regions. © 2025

关键词： Urban growth

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Chemical Characteristics of Air pollution with Significant Emission Changes During 2019-2021 in a Typical Industrial City of Eastern China

SSRN

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SSRN 2023年

作者： Huang, Xiangpeng Li, Changping Pan, Chao Li, Yue'e Zheng, Wei Lin, Guangwu Li, Haiwei Zhang, Yunjiang Wang, Junfeng Lei, Yali Ge, Xinlei Ye, Jianhuai Zhang, Hongliang Department of Environmental Science and Engineering Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention Fudan University Shanghai200438 China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment Technology School of Environmental Science and Engineering Nanjing University of Information Science and Technology Nanjing210044 China School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen518055 China Suzhou Environmental Monitoring Center Suzhou215011 China China Energy Science and Technology Research Institute Co. Ltd. Nanjing210023 China Key Lab of Geographic Information Science of The Ministry of Education School of Geographic Sciences East China Normal University Shanghai200241 China Shanghai200062 China IRDR ICoE on Risk Interconnectivity and Governance on Weather Climate Extremes Impact and Public Health Fudan University Shanghai200241 China

Restrictions on emission controls were implemented in China to cope with the outbreak of the Coronavirus Disease 2019 (COVID-19), providing a chance to study the impacts of anthropogenic emissions on air quality. Subsequently, three-year measurements of PM2.5 chemical composition and light absorption were conducted in a typical megacity (Suzhou) of the Yangtze River Delta in China from 2019 to 2021. Overall, the annual observation period is divided into four stages: Normal Days, Chinese New Year, Lockdown, and Work Resumption. Our results show that the concentrations of chemical species (such as NO3-, SO42-, OC, EC) in PM2.5 and other gas species, including SO2, NO2, and CO from 2019 to 2021 decreased gradually, which were associated with emission reduction. During the four stages, the COVID-19 lockdown period had the lowest concentration of BC and PM2.5, indicating that strict emission control could significantly improve the air quality. The significant increase of O3 during the COVID-19 lockdown period is likely due to the reduced emission of NO from the traffic, which could weaken the effect of NO on O3 formation. The Normal Days in 2020 has the highest mass loadings of SO42-, NO3-, NH4+, OC, and EC, while the mass concentrations of SO42-, NO3-, NH4+, Cl-, and Na+ in the Lockdown were the lowest. Meanwhile, the aerosol light absorption has decreased yearly, and the significant decreases in light absorption were observed during the COVID-19 lockdown when compared to other stages. The highest frequency of Absorption Ångström exponent (AAE) ranges from 1.3 to 1.4, indicating that brown carbon played critical contributions to the light absorption. The mass concentration and fraction of fuel fossil were significantly higher than that of biomass burning during the whole campaign. The remarkable decline of fuel fossil during the COVID-19 lockdown can be attributed to the closure of factories and the reduction of vehicle emissions. The potential contribution source funct

关键词： COVID-19

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Precursors and potential sources of ground-level ozone in suburban Shanghai

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Frontiers of Environmental Science & Engineering 2020年第6期14卷 5-16页

作者： Kun Zhang Jialuo Xu Qing Huang Lei Zhou Qingyan Fu Yusen Duan Guangli Xiu State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes/School of Resources&Environmental Engineering East China University of Science and TechnologyShanghai 200237China School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Shanghai Environmental Protection Key Laboratory for Environmental Standard and Risk Management of Chemical Pollutants School of Resources&Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Shanghai Environmental Monitoring Center Shanghai 200235China

A high level of ozone(O3)is frequently observed in the suburbs of Shanghai,the reason for this high levei remains *** obtain a detailed insight on the high level of 03 during summer in Shanghai,03 and its precursors were measured at a suburban site in Shanghai from July 1;2016 to July 31,*** the Hybrid Single-Particle Lagrangian Integrated Trajectory,(HYSPLIT)model and concentration weighted trajectories(CW T),we found that Zhejiang province was the main potential *** 03 in suburban *** the sampling site was cotrolled by south-westerm winds exceeding 2 m/s,the O3-rich air masses from upwind regions(such as Zhejiang province)could be transported to *** *** propylene-equivalent concentation(PEC)and ozone formation potential(OFP)were,further calculated for each vOC species,and the resuts suggested that propylene,(m+p)-xylene,*** played dominant roles in O3 *** Ozone Isopleth Plotting Research(OZIPR)model was used to reveal the impact ofO;precursors on O3 formation,and 4 base-cases *** to adjust the model *** average *** 18.20%was achieved between the simulated and observed 03 *** 03 isopleth diagram ilustrated that 03 fomatin in July 2016 was in VOC-senstive regime,although the VOCNO,ratio was greater than *** intoducing sensitivity(S),a sensitvity analysis was performed for 03 *** *** 03 formation was senstive to propylene,(m+p)-xylene,e,o-xylene and *** results provide theoretical suppot for 0;plluton treatment in Shanghai.

关键词： Ozone OZIPR Volatile organic compounds Shanghai HYSPLIT

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Analysis of the migration mechanisms of tire wear Particles in quartz sand: Insights into aging pathways and pH regulation effects

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Journal of Environmental Chemical Engineering 2025年第3期13卷

作者： Jianghua Yu Chi Liu Zhangle Chen Zidong Ye Kun Li Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology China School of Environmental Science and Engineering Nanjing University of Information Science and Technology Nanjing 210044 China

As a pivotal source of non-exhaust microplastic pollution in the automotive industry, tire wear particles (TWPs) remain an area of research in its infancy regarding their migration mechanisms and environmental influences. This study delves into the migration characteristics of TWPs within saturated quartz sand media, with a particular emphasis on the regulatory effects of diverse aging scenarios—encompassing pure water, lake water, bacterial mixtures, and simulated soil solutions—alongside pH fluctuations. Our findings unveil that the aging process profoundly reshapes the physicochemical properties of TWPs, encompassing surface morphology, elemental composition, crystal structure, functional group characteristics, as well as surface potential and wettability. Notably, TWPs aged in a mixed bacterial solution (M-TWPs) exhibit a dramatic increase in specific surface area, ranging from 59 to 2038 times that of their unaged counterparts (U-TWPs). Consequently, the maximum penetration ratio of M-TWPs at neutral pH (7.0) soars to 0.89, marking a 2.4-fold enhancement compared to U-TWPs (0.37). This results from bacterial attachment and metabolites roughen TWPs' surface, cause fractures, enhance charge, and increase hydrophilicity, boosting migration. Crucially, pH governs TWPs' migration by modulating surface charges and electrostatic interactions with quartz sand. Alkaline conditions (pH=10) reduce electrostatic adsorption, increasing migration efficiency, while acidic environments (pH=4) enhance adsorption, decreasing migration. Additionally, material exchange during migration subtly affects filtrate pH and redox potential, highlighting the complexity of TWPs' environmental interactions. Our findings deepen the understanding of TWPs' environmental behavior and provide a foundation for assessing their migration paths and ecological effects, informing future research and risk management strategies.

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Mechanism Research of Modified Cellulose Improving the Thermal Gel Properties of Egg Yolk

SSRN

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SSRN 2023年

作者： Huang, Qun Li, Xin Zhang, Yufeng Huang, Xiang Wu, Yongyan Geng, Fang Luo, Peng Li, Xiefei School of Public Health Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing The Key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education Guizhou Medical University Guiyang550025 China College of Food Science Fujian Agriculture and Forestry University Fuzhou350002 China Institute for Egg Science and Technology School of Food and Biological Engineering Chengdu University Chengdu610106 China

Natural plant fiber is insoluble in water, and the particle size is large, when it is used in modified egg yolk protein gel, its quality will be rough and hardness. In this study, two kinds of modified cellulose were selected to improve the thermal gel properties of egg yolk. The results showed that the two kinds of cellulose promoted the formation of ordered structure of yolk gel. The ordered gel network not only improved the texture properties and rheological properties, but also improved the water retention of yolk gel significantly. At the same concentration, CMC had good dispersion, so its effect on improving egg yolk gel performance was significantly better than CNFC. However, in the yolk gel containing 1.20-1.60% CNFC, the cross-linking of yolk protein was blocked, the network structure of protein was destroyed, and the quality of gel was significantly reduced. © 2023, The Authors. All rights reserved.

关键词： Proteins

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Ultrasound-Assisted the Alkaline Hydrolysis of Fish Scale Gelatin: A Possible Curcumin Delivery System with Increased Water Solubility and Sustained Release

SSRN

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SSRN 2023年

作者： Liu, Jia Li, Haoxin Wan, Aida Wan Mustapha Zhang, Xiaoping The Key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education Guizhou Provincial Engineering Research Center of Ecological Food Innovation School of Public Health Guizhou Medical University Guiyang550025 China Institute of Food Processing Technology Guizhou Academy of Agricultural Sciences Guiyang550006 China Bangi43600 Malaysia Guizhou Fishery Research Institute Guizhou Academy of Agricultural Science Guiyang550025 China

This study sought to investigate the effect of ultrasound-assisted alkaline treatment on the structural characteristics and curcumin loading efficiency in fish scale gelatin (FSG). The results showed that FSG subjected to the ultrasound-assisted alkaline treatment outperformed non-treated FSG, as well as alkali- or ultrasonic-treated FSG in augmenting curcumin loading efficiency (18.36 µg/mL) and protein elution amount (180.87 μg/mL). In contrast to FSG exposed to individual treatments (alkali or ultrasound), the FSG subjected to combined treatment exhibited a notably higher ratio of hydrophobic amino acids (47.51 ± 2.27%). Meanwhile, individual alkali or ultrasonic and ultrasound-assisted alkaline treatments had the capacity to significantly modify the secondary and tertiary structures, as well as the microstructure of FSG. The curcumin-loaded FSG subjected to ultrasound-assisted alkali treatment exhibited a sustained release profile in simulated gastrointestinal conditions. The elucidated outcomes underscore the significant potential of ultrasound-assisted alkali-treated FSG as a promising avenue for facilitating the controlled delivery of bioactive hydrophobic nutrients. © 2023, The Authors. All rights reserved.

关键词： Ultrasonics

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