Article
Environmental Sciences
Qing Xiang, Huan Yu, Hongliang Chu, Mengke Hu, Tao Xu, Xiaoyu Xu, Ziyi He
Summary: Heavy metal pollution control zoning is important for maintaining the health of the watershed soil ecosystem. This study used self-organizing map and potential ecological risk assessment to classify and evaluate heavy metal pollution, and proposed strategies for classified management and control. The results showed regional differences in soil ecological risk, and identified influential factors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Bingchen Wu, Shi Qi, Yishui Hu, Yutong Li, Jinxing Zhou
Summary: The sludge products of urban sewage treatment plants in Beijing are increasing year by year. Different sludge application rates have significant effects on the migration behavior of heavy metals, and attention should be paid to the potential risk of arsenic and cadmium to groundwater. The application rate of 60 t center dot ha(-1)center dot a(-1) is the optimal choice, as it maximizes the sludge disposal while minimizing the risks to groundwater and soil in the short term.
Article
Environmental Sciences
He Peng, Yizhong Chen, Jing Li, Jingzhao Lu
Summary: An energy information flow-based ecological risk assessment framework was developed to identify ecological risk transmission rules among different communities within contaminated soil systems, showing that soil microorganisms E3 are the most sensitive community when contaminant interference occurs.
Article
Environmental Sciences
Minghao Wang, Xiaoyang Liu, Bing Yang, Yang Fei, Jingjing Yu, Ran An, Lijie Duan
Summary: Due to rapid urbanization, industrialization, agricultural development, and mining activities, soil heavy metal pollution has become a severe issue in China. Regional heavy metal ecological risks in lakes in China vary due to different levels of anthropogenic activities and geochemical factors. The Yunnan-Guizhou Plateau Lake Region was identified as the most seriously affected area, while the Inner Mongolia-Xinjiang Lake Region and the Tibetan Plateau Lake Region had relatively low ecological risks. Geochemical factors play a more substantial role in the ecological risk of heavy metals in lake sediments compared to human activities at the regional scale.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Halil Aytop, Yakup Kenan Koca, Suat Senol
Summary: The enrichment factor (EF) is commonly used to determine the source of pollution, but its accuracy is questioned due to the discretion of background value choice. This study assessed the validity of the concerns and found varying heavy metal enrichment in soils based on different background values. Statistical analyses revealed strong positive relationships between clay content, cation exchange capacity, and certain heavy metals.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Soil Science
Alicja Kicinska, Justyna Wikar
Summary: This paper evaluates the degree of soil pollution of agricultural land exposed to pollution from the mining and processing industries, focusing on the primary and trace elements in soils. Results indicate that permissible levels of Pb and Zn have been exceeded in areas where Zn-Pb ore exploitation and steel production occur, leading to heavy Zn pollution and medium Pb pollution, making these areas unsuitable for agricultural production, especially leafy vegetable cultivation.
SOIL & TILLAGE RESEARCH
(2021)
Article
Multidisciplinary Sciences
Weiwei Zhang, Jigang Han, Haibing Wu, Qicheng Zhong, Wen Liu, Shanwen He, Lang Zhang
Summary: The study revealed significant differences in soil molecular biomass, fungal abundance, and community composition and co-occurrence relations of bacterial and fungal communities between urban and suburban park soils. Soil available zinc played a crucial role in shaping the structures of both bacterial and fungal communities in Shanghai park soils.
Article
Environmental Sciences
Marhaba Turhun, Mamattursun Eziz
Summary: In this study, we analyzed the concentrations of six heavy metals in vineyard soils from the Turpan Basin in China. The results showed that the average concentrations of arsenic, cadmium, chromium, and mercury exceeded the background values, indicating slight contamination. The spatial distribution patterns of heavy metals demonstrated heterogeneity, with chromium and nickel mainly derived from natural sources, while cadmium and lead originated from anthropogenic sources.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Green & Sustainable Science & Technology
Jing Wei, Xiaogang Zheng, Jintong Liu, Guowei Zhang, Yanxi Zhang, Cailing Wang, Yuanchen Liu
Summary: The study revealed that while the overall soil quality in the upstream watershed of the Guanting and Miyun Reservoirs in Beijing is excellent, there are relatively high contamination risks for Cd, Cu, Zn, and Cr. Through the analysis of heavy metal concentrations, factor analysis, and cluster analysis, the sources of different heavy metals were identified.
Article
Environmental Sciences
Jun Liu, Shiwen Zhang, Enwei Li, Yafei Zhu, Huizhen Cai, Shasha Xia, Chenchen Kong
Summary: In this study, a combined cubic ecological restoration scheme for soil improvement-vegetation reconstruction was constructed based on field experiments. The differences in soil properties and biodiversity were analyzed under different restoration schemes, and the best ecological restoration model was optimized. The results showed that the restoration significantly improved soil quality and biodiversity, and the combination of mixed soil amendments and tolerant plants was identified as the optimal cubic ecological restoration scheme.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Bo Yuan, Hanyi Li, Hualong Hong, Qiang Wang, Yuan Tian, Haoliang Lu, Jingchun Liu, Lujian Lin, Guirong Wu, Chongling Yan
Summary: This study investigates the adsorption behaviors and mechanisms of Pb(II) and Zn(II) ions on glomalin-related soil protein (GRSP). Results show that the adsorption of Pb(II) and Zn(II) on GRSP follows the pseudo second-order model, and the adsorption process is influenced by pollution level, pH value, and GRSP content. The surface structure of GRSP is irregularly blocky or flaky, with metal ions uniformly distributed on its surface. Carboxyl and nitro groups on GRSP act as ligands, forming complexes with divalent metal ions. The interaction between GRSP and metals is mainly through surface complexation. This research provides new insights into the transport and transformation of heavy metals onto GRSP in mangrove sediment and aqueous ecosystems.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Environmental Sciences
Minkang Zhi, Xi Zhang, Kai Zhang, Simon J. Ussher, Wenli Lv, Jie Li, Jian Gao, Yuqian Luo, Fan Meng
Summary: The pollution characteristics of size-segregated particles and metal elements in the atmosphere in 2016 were investigated following the release of the Chinese Air Pollution Prevention Action Plan in 2013. It was found that the composition of coarse particles is as important as that of fine particles when comparing pollution levels in 2016 to 2013. Additionally, the size distributions of particle mass concentrations were bimodal, with an increase in fine particle proportion as pollution levels elevated.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Yan Li, Zhiqiang Xu, Hanhan Ren, Dong Wang, Jian Wang, Zhen Wu, Pengjie Cai
Summary: The ecological risk level of heavy metals in the topsoil of Weifang, China is relatively high, especially for Cd and Hg. The main sources of heavy metals include industrial activities, transportation, and agricultural production.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Glory Borah, Hemen Deka
Summary: The ecological and human risks of crude oil-associated heavy metals (HMs) in contaminated agricultural lands were assessed using various indices. The results indicated a high environmental risk of crude oil-associated HMs, with Mn > Zn > Cr > Ni > Cu being the most contaminated metals. Furthermore, the study analyzed the adverse effects of these HMs on soil biological properties.
Review
Environmental Sciences
Sabina Licen, Aleksander Astel, Stefan Tsakovski
Summary: The evaluation of the spatial and temporal distribution of pollutants and the use of Self-Organizing Map (SOM) is crucial for assessing the anthropogenic burden on the environment. The SOM is an artificial neural network that can handle non-linear problems and is used for exploratory data analysis, pattern recognition, and variable relationship assessment. The review provides a description of the SOM operation principle, its application for obtaining pollution patterns, and advice for reporting and extracting valuable information from the model results.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)