Article
Astronomy & Astrophysics
Saeed Negahban, Marzieh Mokarram
Summary: The study estimated and analyzed the rate of heavy metal changes in soils of road margins affected by traffic on Fasa-Darab Road, Iran. Results showed that Pb and Cd were the most relevant parameters in the analysis of potential ecological risk index (PERI) within the study area.
EARTH AND SPACE SCIENCE
(2021)
Article
Environmental Sciences
Sina Shahabi-Ghahfarokhi, Sarah Josefsson, Anna Apler, Karsten Kalbitz, Mats astrom, Marcelo Ketzer
Summary: The study reveals that Baltic Sea sediments record significant loads of Cd, Zn, and Pb, influenced by redox conditions. Concentrations of these metals increased from the early 19th century to the 1970s, then decreased, but are still above pre-industrial levels. Pre-industrial Cd, Zn, and Pb concentrations were higher than those suggested by the Swedish EPA. The reduction in pollution of these metals since the 1980s highlights the importance of environmental governance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Antonio Pescatore, Chiara Grassi, Andrea Maria Rizzo, Simone Orlandini, Marco Napoli
Summary: The study found that biochar amendment effectively reduced heavy metal concentrations in urban soil and increased plant yield. Berseem clover was effective in remediation of chromium, nickel, and lead contaminated soil, but not for cadmium and zinc.
Article
Soil Science
Claudia Cagnarini, Stephen Lofts, Luigi Paolo D'Acqui, Jochen Mayer, Roman Grueter, Susan Tandy, Rainer Schulin, Benjamin Costerousse, Simone Orlandini, Giancarlo Renella
Summary: The study investigated the long-term dynamics of trace elements in agricultural fields using dynamic simulations, focusing on the effects of different organic amendments on soil concentrations. The results showed that dissolved organic carbon fluxes play a key role in estimating labile metal concentrations, with cadmium being particularly sensitive to this factor.
Article
Environmental Sciences
Qian Li, Limin Wang, Rui Xu, Yongbin Yang, Huaqun Yin, Shengming Jin, Tao Jiang
Summary: Heavy metal pollution is a critical global issue, and bioremediation is considered a promising approach. This study investigated the biosorption characteristics of Cd(II), Pb(II), Cu(II), and Zn(II) from aqueous solutions using three phosphorus-accumulating organisms (PAOs) biomasses. The results showed that the biosorption capacity of the biosorbents to heavy metal ions was affected by the solution pH and increased with higher pH values. The experimental data of biosorption were well fitted with the Pseudo-second-order, Redlich-Peterson, and Temkin models, suggesting a hybrid chemical reaction-biosorption process.
Article
Horticulture
Filip Kovar, Katerina Smutna, Adam Hruska, Ivan Koutnik, Martina Vrablova
Summary: Air pollution is a worldwide problem that affects human and wildlife health through the deposition of pollutants in the atmosphere. Heavy metals, which have high toxicity, persistence, and bioaccumulation, are significant pollutants. In an environment polluted by industry and transportation, heavy metals are deposited on plant leaves and subsequently taken up by plants. The leaf cuticle, which acts as a barrier between plant tissue and the atmosphere, plays a crucial role in the adsorption and diffusion of heavy metals. This study investigated the adsorption and permeability of heavy metals on enzymatically isolated cuticles of Ficus elastica and found significant differences in adsorption capacity and mechanisms among different metals.
SCIENTIA HORTICULTURAE
(2023)
Article
Engineering, Environmental
Piotr Gutwinski, Grzegorz Cema, Aleksandra Ziembinska-Buczynska, Karolina Wyszynska, Joanna Surmacz-Gorska
Summary: The study found that in anaerobic ammonia oxidation process, zinc is the main metal responsible for inhibition, and removing zinc from incoming sewage can restore the efficiency of the process.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Shaoting Du, Qi Lu, Lijuan Liu, Yu Wang, Jiaxin Li
Summary: The study found that catabolizing abscisic acid (ABA) in hyperaccumulating plants via rhizobacteria can significantly increase the uptake efficiency of heavy metals, potentially providing a promising strategy for enhancing phytoremediation efficacy in HM-contaminated soils.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Guanghui Xu, Xiaolong Lin, Yong Yu
Summary: Heavy metals in soil ecosystems pose a potential threat to soil biota. Micro-and nano-plastics (MNPs) can impact the accumulation of heavy metals in plants by altering soil microbial community and causing injury to plants. This study investigated the effects and mechanisms of MNPs on the uptake of Cu, Zn, Pb, and Cd in lettuce. The results showed that MNPs increased the uptake of heavy metals in lettuce by altering the relative abundance of key metal-activation bacteria in rhizospheric soil. The concentrations of heavy metals in nanoparticle treatments were significantly higher than that of microparticle treatments, particularly at higher nanoparticle concentration. Biomarkers and gene expression showed that high concentrations of nanoparticles caused more severe injuries to lettuce plants. Metabolomic analysis revealed that nanoparticles disturbed the metabolism of ATP-binding cassette transporter and plant hormone signal transduction in lettuce roots, leading to increased uptake of heavy metals by lettuce.
ENVIRONMENTAL POLLUTION
(2023)
Article
Microbiology
Yumi Kim, Sunki Kwon, Yul Roh
Summary: Microbially induced calcium carbonate precipitation (MICP) is a bio-geochemical process involving calcium carbonate precipitation and possible co-precipitation of other metals. The study found that different metals have varying effects on bioprecipitation, with lead and strontium showing over 99% removal efficiency, while copper, zinc, and cadmium exhibited lower removal efficiency. The types and concentrations of metals significantly influenced the mineralogy of calcium carbonates precipitated and the rates of metal removal.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Fanghan Qian, Xinjian Huang, Yanyu Bao
Summary: This study aimed to explain the response of Tamarix ramosissima's phylloplane bacterial community to heavy metals (HM) and the effect on host growth. Results showed that high HM level inhibited dominant bacteria, increased bacterial community diversity and richness, and induced special bacteria to maintain higher productivity of the host plant. The co-occurrence network of phylloplane bacteria showed less stability than that in corresponding soil, but it helped regulate plant growth more rapidly.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Agricultural Engineering
Yue Zhang, Yongshan Wan, Yulin Zheng, Yicheng Yang, Jinsheng Huang, Hao Chen, Guixiang Quan, Bin Gao
Summary: Hydrochars derived from hydrothermal carbonization of hickory wood, bamboo, and wheat straw were modified with potassium permanganate for effective sorption of heavy metals. The modified wheat straw hydrochar (WSHyC-0.2KMnO(4)) exhibited the highest adsorption capacity, attributed to its large specific surface area, abundant surface oxygenic functional groups, and significant presence of MnOx microparticles. Batch adsorption experiments demonstrated that WSHyC-0.2KMnO(4) had a faster adsorption rate and much higher adsorption capacity (12-17 times) for Pb(II), Cd(II), and Cu(II) compared to WSHyC, due to increased OCFG and MnOx microparticles on its surface facilitating ion exchange, electrostatic interactions, and complexation mechanisms.
BIORESOURCE TECHNOLOGY
(2023)
Article
Energy & Fuels
Zeyu Xue, Lu Dong, Zhaoping Zhong, Xudong Lai, Yaji Huang
Summary: The study demonstrates that intercalation-exfoliation modification enhances the capture capacity of montmorillonite for heavy metals, especially showing significant improvements for Pb, Zn, and Cr, while having adverse effects on Cd in some cases. The modified MMT enhances the chemisorption of heavy metals by exposing more active sites.
Article
Environmental Sciences
Yizhang Liu, Tangfu Xiao, Zhengjie Zhu, Liang Ma, Hang Li, Zengping Ning
Summary: This study investigated the pollution, fractionation and potential risks of heavy metals in soils from a mountainous area with black shale outcropping, with emphasis on Cd and Zn. Elevated concentrations of heavy metals in black shales reflected high geochemical baseline in the study area. Metals released from oxidative weathering were redistributed and retained during pedogenic processes, leading to enrichment of certain metals in soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agronomy
Malgorzata Suska-Malawska, Assem Vyrakhamanova, Marya Ibraeva, Maksat Poshanov, Marcin Sulwinski, Kristina Toderich, Monika Metrak
Summary: The southern part of Kazakhstan has significant issues with salinization in irrigated lands, with cadmium contamination in soil primarily stemming from polluted irrigation water.
Article
Engineering, Civil
Haoran Chen, Xuedong Yan, Xiaobing Liu, Tao Ma
Summary: With the rapid development of internet technologies and shared mobility services, online ridesharing services have become popular worldwide. This study compares the operational performance of two major online ridesharing modes, ridesplitting and carpooling, using actual operating data provided by DiDi Chuxing. The findings indicate that ridesplitting has lower fuel-saving and distance-saving ratios compared to carpooling, and online ridesharing is not considered fuel-saving in terms of transportation system's fuel economy.
Article
Computer Science, Interdisciplinary Applications
Long Chen, Peng Xu, Xuedong Yan, Reginald R. Souleyrette, Teng (Alex) Wang
Summary: This paper introduces a Multi-objective Periodic Generalized Directed Rural Postman Problem under Length Restrictions with Intermediate Facilities (MO-PGDRPPLRIF) applied in the metro track inspection routing problem, and proposes a novel multi-objective evolutionary algorithm LIP-ASD to solve the problem. The testing and real-world application confirm the effectiveness of the proposed approach, which outperforms other similar algorithms.
COMPUTERS & OPERATIONS RESEARCH
(2023)
Article
Environmental Sciences
Subash Adhikari, Chen Zeng, Fan Zhang, Namita Paudel Adhikari, Jing Gao, Nasir Ahmed, Md Abdul Quaiyum Bhuiyan, Md Ariful Ahsan, Md Hafijur Rahaman Khan
Summary: This study investigated the concentration, sources, and deposition of eighteen trace elements in precipitation samples collected from four sites in Bangladesh. The results showed significant spatial and seasonal variations in the concentration of these elements, with enrichment factors indicating anthropogenic influences. The study provides a reference dataset for future scientific research and policy development.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Faizan Ur Rehman Qaiser, Fan Zhang, Ramesh Raj Pant, Chen Zeng, Nangyal Ghani Khan, Guanxing Wang
Summary: This study assessed the geochemical characteristics and associated health risks of arsenic in natural waters in the Indus River Basin (IRB), Pakistan. A total of 203 samples of different water types were collected and analyzed. The results showed that arsenic concentrations in the waters ranged from 1.1-26.45, 1.05-44.44, and 0.67-41.09 μg/L for surface water, shallow groundwater, and deep groundwater, respectively. The desorption of arsenic in oxidizing environments with elevated pH and Eh was identified as the controlling mechanism.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Handuo Tang, Fan Zhang, Chen Zeng, Li Wang, Hongbo Zhang, Yuxuan Xiang, Zhongbo Yu
Summary: The alpine lakes on the Tibetan Plateau have undergone significant changes due to climate change in recent decades. However, the changing patterns of inflow sources, including rainfall and meltwater from snow and glaciers, and their responses to climate change remain uncertain due to the complex topography and limited data in the alpine area. In this study, a distributed hydrological model was used to simulate the runoff variations of a glaciated basin in Yamzho Yumco Lake. By combining precipitation data from high-resolution reanalysis and field observations, the uncertainty of inflow components in the model was reduced. The results showed that rainfall runoff, glacier melt runoff, snowmelt runoff, and baseflow contributed to the total runoff, with varying proportions and seasonal variations.
Article
Green & Sustainable Science & Technology
Li Wang, Fan Zhang, Xiaonan Shi, Chen Zeng, Ijaz Ahmad, Guanxing Wang, Sahadeep Thapa, Xing Xu
Summary: This study assessed the spatiotemporal variations and future predictions of water resources system vulnerability in the Upper Yangtze River, and identified its main influencing factors. The results suggest that climate change may increase the vulnerability of the water resources system in the upstream area, necessitating appropriate measures to mitigate its impacts.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Huajie Diao, Jianqiang Yang, Jie Hao, Xuedong Yan, Kuanhu Dong, Changhui Wang
Summary: Increased nitrogen deposition and altered precipitation regimes have significant interactive effects on carbon flux in saline-alkaline grasslands. The interaction of nitrogen addition and increased precipitation significantly improved ecosystem CO2 fluxes, with higher gross-ecosystem productivity and net ecosystem CO2 exchange. This interaction also stimulated water use efficiency, but had no significant effects on carbon use efficiency over four years. The effects of nitrogen addition on net ecosystem CO2 exchange were influenced by seasonal precipitation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yao Chen, Li Wang, Xiaonan Shi, Chen Zeng, Yuchun Wang, Guanxing Wang, Cicheng Qiangba, Caiyun Yue, Zugang Sun, Ouzhu Renzeng, Fan Zhang
Summary: In this study, the impacts of climate change on water resources and the water cycle in the Yarlung Tsangpo River basin were assessed using the SWAT model. The results showed an increase in total runoff and its components (surface runoff, interflow, and groundwater) from 1983 to 2017, attributed to increased precipitation. Future predictions indicate a warming and wetting trend in the study area from 2020 to 2100, with an increase in total runoff, mainly driven by surface runoff.
Article
Green & Sustainable Science & Technology
Li Wang, Fan Zhang, Guanxing Wang, Chen Zeng, Yao Chen, Xiaonan Shi, Handuo Tang, Guangju Zhao, Chongyu Xu, Xin Li
Summary: Soil erosion is a global environmental threat, especially in high-mountain areas affected by climate and vegetation changes. This study improved the RUSLE by developing a method to calculate snowmelt runoff erosivity and estimated the soil erosion rate in the upper Heihe River Basin. The results showed that vegetation cover played a dominant role in reducing soil erosion.
Article
Transportation
Haonan Guo, Yun Wang, Pan Shang, Xuedong Yan, Yunlin Guan
Summary: This study focuses on the customised bus routing problem with passenger-to-station assignment (CBRP-PSA) aiming to minimize passengers' CB service access cost and the bus route cost simultaneously. A time-discretized multi-commodity network flow model is developed and decomposed into two solvable sub-problems through dualization. A Lagrangian-based heuristic solution algorithm is proposed to solve this problem effectively.
TRANSPORTMETRICA A-TRANSPORT SCIENCE
(2023)
Editorial Material
Environmental Sciences
Fan Zhang, Baoyuan Liu, Liping Zhu, Richard Cruse, Dongfeng Li, Panos Panagos, Pasquale Borrelli, Yakov Kuzyakov, Shaoshan An
Summary: During the International Workshop on Soil Erosion and Riverine Sediment in Mountainous Regions in November 2022, scientists from various countries shared their latest knowledge and brainstormed to improve scientific understanding for combating climate change and human activities. The discussion summarized proposed key scientific questions and suggested joint actions to reduce soil erosion and riverine sediment issues in mountainous regions.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2023)
Article
Chemistry, Physical
Taowen Dong, Jiudi Zhang, Ziyang Ai, Lin Ma, Bing Han, Zhanshuang Jin, Yali Wang, Jianhua Guo, Xuedong Yan, Junjie Li
Summary: Constructing high-performance cathode host materials is crucial for improving the efficiency of lithium-sulfur batteries. The use of porous carbon nanoreactors has gained attention due to their unique spatial structure and customizable reaction sites. However, the disordered pore distribution and surface catalysis in these materials restrict the performance of the batteries.
JOURNAL OF POWER SOURCES
(2023)