Article
Engineering, Environmental
Xueying Feng, Quanlong Wang, Yuhuan Sun, Shuwu Zhang, Fayuan Wang
Summary: This study investigated the impacts of different types of Microplastics (MPs) on Pb-Zn contaminated soil and found that MPs, especially at a dose of 2%, decreased the richness and diversity of bacterial communities, altered microbial community composition, and significantly affected soil properties and heavy metal availability. The effects were dependent on the type and dose of MPs.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
F. Akbarpour, S. Gitipour, M. Baghdadi, N. Mehrdadi
Summary: The study focused on fractionation, distribution, mobility, and toxicity of lead, nickel, cadmium, copper, and zinc in contaminated soils in Tehran province, Iran. Results showed correlations between soil factors such as Eh, pH, clay, silt content, and organic matter with heavy metal retention. Heavy metals were strongly associated with the Fe-Mn oxide fraction, indicating potential risk of pollution of groundwater and food chain contamination.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Environmental Sciences
Keqi Zhao, Yuan Yang, Hua Peng, Lihua Zhang, Yaoyu Zhou, Jiachao Zhang, Chunyan Du, Junwu Liu, Xu Lin, Nanyi Wang, Hongli Huang, Lin Luo
Summary: It has been confirmed that Si fertilizer and HA could effectively decrease the heavy metals in soil. Nonetheless, the impact of these additives on soil aggregate characteristics was ignored. The results showed that HA and SHA supplementation significantly decreased the availability of Cu, Cd, Pd, and Zn.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Meili Xu, Weijie Dai, Zilin Zhao, Jiatong Zheng, Fei Huang, Chuang Mei, Shuting Huang, Chufan Liu, Peng Wang, Rongbo Xiao
Summary: This study found that rice straw biochar has different immobilization mechanisms for cadmium (Cd) in soils with different levels of contamination. Biochar can reduce the soluble fraction of Cd in soils and affect Cd availability by modifying soil properties and microbial community diversity.
Article
Engineering, Environmental
Jun Meng, Wenjin Li, Chengmei Diao, Zhangtao Li, Jiayi Zhao, Ghulam Haider, Haibo Zhang, Jun Xu, Minjun Hu, Shengdao Shan, Huaihai Chen
Summary: The mechanisms by which microplastics affect soil microbes and their metagenomic functioning are currently uncertain. In this study, we investigated the response mechanisms of bacterial and fungal communities to the addition of PVC microplastics in two soils with different pH and heavy metal levels. The results showed that PVC microplastics increased soil pH and reduced heavy metal availability, while also reducing bacterial diversity and interaction networks. Our study suggests that the addition of PVC microplastics could shift soil microbial community and metagenomic functioning.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Agriculture, Multidisciplinary
Beibei Liu, Chaoxian Wei, Dengxiu Wei, Miao Chen, Wei Li, Pan Pan, Bigui Lin, Lin Wu, Qinfen Li, Zhenli He
Summary: The overuse of chemical fertilizers and intensive cropping systems often leads to soil quality degradation and affects cadmium availability to crops. Therefore, studying the impact of agronomic managements on soil Cd adsorption is important for sustainable agriculture. A three-year field experiment was conducted to investigate the effects of different agronomic managements on soil Cd adsorption. The results showed that corn-pepper rotation with sheep manure significantly increased Cd adsorption in the soil.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Soil Science
Thiago A. Formentini, Isabelle Basile-Doelsch, Samuel Legros, Daniel Borschneck, Julia S. Venzon, Adilson Pinheiro, Cristovao V. S. Fernandes, Fabio J. K. Mallmann, Milton da Veiga, Emmanuel Doelsch
Summary: The application of Zn-rich livestock manure to agricultural soils affects the distribution of Zn within the soil matrix, with interactions between Zn and different soil constituents. Soil density fractionation revealed changes in Zn speciation and associations with organic and mineral-rich fractions in response to long-term pig slurry applications.
Article
Engineering, Environmental
Sansfica. M. Young, Indeewari. A. Perera, H. Ishiga
Summary: Chronic kidney disease in the North Central Province of Sri Lanka is a significant national burden with potential links to heavy metals and elements in the soil.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2021)
Article
Environmental Sciences
Dandan Wang, Liugen Zheng, Mengxi Ren, Chang Li, Xianglin Dong, Xiangpin Wei, Weijun Zhou, Jiasheng Cui
Summary: In mining areas affected by long-term coal mining activities, zinc pollution poses a serious threat to soil quality and human health. This study analyzed the zinc content and isotopes composition in soil samples to understand the characteristics and sources of zinc in the soil. The results showed that zinc content exceeded the background value, and zinc primarily originated from wind dispersion and natural weathering. The use of zinc isotopes can effectively evaluate the impact of anthropogenic and natural processes on zinc in mining area soil.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Engineering, Environmental
Yingchao Li, Hua Yin, Zhanyu Guo, Minghan Zhu, Caiya Yan, Xiaoqin Li, Zhi Dang
Summary: In this study, a novel composite material of alpha-Fe2O3 loaded biochar (Fe2O3/BC) was prepared using chicken manure and potassium ferrocyanide, and demonstrated excellent immobilization efficiency on multiple heavy metals in soil. The Fe2O3/BC-350 showed better remediation performance than Fe2O3/BC-250 and Fe2O3/BC-550. Additionally, Fe2O3/BC-350 increased soil pH, cation exchange capacity (CEC), and promoted the transformation of heavy metal ions into more stable forms, while enhancing soil enzyme activity and improving soil microbial community diversity and richness.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Hanbo Chen, Ying Feng, Xing Yang, Bingshuang Yang, Binoy Sarkar, Nanthi Bolan, Jun Meng, Fengchang Wu, Jonathan W. C. Wong, Wenfu Chen, Hailong Wang
Summary: The application of biochar can increase the available phosphorus concentration in soil and facilitate the transformation of lead. Both types of biochar can promote the uptake of phosphorus by plants and convert mobile lead into stable forms. Biochar immobilizes lead through mechanisms such as increasing soil pH, lead-phosphate/carbonate precipitation, ion exchange, and surface complexation.
Article
Agronomy
Xiaoxue Sun, Jiangnan Wang, Miao Zhang, Zunqi Liu, E. Yang, Yu Lan, Tianyi He, Jun Meng
Summary: Biochar is a potential amendment for remediating Cd-contaminated soil and reducing Cd uptake by rice. However, the effect of biochar on rice Cd uptake and soil Cd fractions under field conditions is still poorly understood.
Article
Geochemistry & Geophysics
Adam Lukowski, Dorota Dec
Summary: The study aimed to evaluate the influence of Ni, Cr, and Pb fractions on soil enzymatic activity in soil samples cultivated using a simplified method. Chemical fractions were considered, with significant relationships found between specific metal fractions and enzyme activities, particularly phosphatase activity. The results suggest that metal fractions have a varying impact on soil enzyme activities, with phosphatase activity being the most influenced.
Article
Environmental Sciences
Dinghua Peng, Renfeng Zhang, Yahui Chen, Lili Jiang, Ling Lei, Heng Xu, Su Feng
Summary: The re-release of chromium and vanadium in contaminated acidic paddy soil poses ecological risks and disturbs soil function, with chromium having a stronger impact.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Qian Zhang, Fangfang Zhang, Chengmin Huang
Summary: This study investigated the distribution of heavy metals in soils and sediment samples, showing that heavy metal concentrations increase with decreasing particle sizes. It also demonstrated the importance of carbonate mineral stabilization for heavy metal pollution control in floodplain soils with high carbonate concentrations in Dongchuan, China.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)