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
Environmental Studies
Fuling Zhang, Guangchao Cao, Shengkui Cao, Zhuo Zhang, Hongda Li, Gang Jiang
Summary: In recent years, the ecological and environmental problems caused by mining in the Qilian Mountains have received significant attention. This study focuses on the ecological restoration in the Qilian Mountain alpine mining area and analyzes the heavy metal pollution in the soil. The results indicate that the grassland soil around the mining area has high levels of heavy metals, with Cd contamination being the most significant. Various indices and analysis methods are used to assess the heavy metal pollution and potential ecological risk. The spatial distribution of heavy metals in the soil shows an island-like pattern.
Article
Environmental Sciences
Yanting Qi, Xiangdong Wei, MengJie Zhao, Weisong Pan, Chao Jiang, Jinbiao Wu, WaiChin Li
Summary: China, as the largest antimony resource globally, faces significant environmental risks due to the mining and smelting of antimony. This study analyzed the heavy metal contents in soils and watersheds of three typical antimony mining areas in China. The results indicated high pollution levels and ecological risks in the soil surrounding two of the mining areas, mainly attributed to the mining and smelting activities and mineral weathering. This research provides a scientific basis for the safe utilization of farmland and pollution control in antimony mining areas in China.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
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
Environmental Studies
Weijie Li, Tongbin Zhu, Hui Yang, Chunlai Zhang, Xia Zou
Summary: This study investigated the distribution characteristics and hazard levels of heavy metals in karst soil in a mountainous county in China. The results showed that the levels of heavy metals in karst areas exceeded the background values, while non-karst areas did not. The presence of heavy metals in karst areas was mainly influenced by carbonate rock parent material. The potential ecological risk in karst areas, especially for Cd, was higher compared to non-karst areas.
Article
Environmental Sciences
Yan Li, Dike Feng, Meiying Ji, Zhanpeng Li, Ruocheng Zhang, Chenwei Gu
Summary: With the rapid development of China's industrial economy, heavy metals continue to accumulate in the environment, posing serious threats to the ecological environment and human health. This study comprehensively evaluated the risk of soil heavy metals in Nanjing, a typical developed city in China, using ecological risk index and health risk assessment model. The results showed that Pb and Cu were slightly polluting and posed high non-carcinogenic risks, especially for children. Industrial sources were found to contribute the most heavy metals in Nanjing.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
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
Environmental Sciences
Rongguo Sun, Yue Gao, Yang Yang
Summary: This study investigated the leaching of heavy metals (HMs) from lead-zinc mine tailings and its subsequent effects on paddy soil. The results showed that the concentrations of HMs in the leachate increased with the liquid-to-solid ratio, with Mn and Zn showing the highest increasing rates. When paddy soil was exposed to lead-zinc mine tailings, the HMs accumulated significantly and their contents increased over time. The vertical migration rates of HMs in the paddy soil varied, with Zn and Mn being more easily leached and migrated into deeper layers. The distribution of HMs in different chemical fractions also varied.
Article
Engineering, Environmental
Muhammad Jamil, Ijaz Malook, Shafiq Ur Rehman, Muhammad Daud Khan, Muhammad Fayyaz, Muhammad Mudasar Aslam, Eui Shik Rha
Summary: The study focused on heavy metal pollution and ecological risk factors associated with agriculture soil irrigated with industrial effluents in Hayatabad and Gadoon industrial estates in Pakistan. Results showed significant enrichment of heavy metals and considerable ecological risk in the soils, mainly attributed to industrial and commercial activities.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2022)
Article
Environmental Sciences
Yanping Ji, Jiang Xu, Lizhong Zhu
Summary: This study investigated the impact of a super typhoon on the migration of heavy metals in agricultural soils. It found that heavy metal contaminations in soil were relieved to a certain extent after the typhoon, with different metals showing varying changes in their available fractions. Additionally, lead contamination slightly increased after the typhoon, indicating a different response compared to other heavy metals.
ENVIRONMENTAL POLLUTION
(2021)
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
Multidisciplinary Sciences
Wen Sun, Ke Yang, Risheng Li, Tianqing Chen, Longfei Xia, Xubo Sun, Zhao Wang
Summary: The Shahe Reservoir in the Northern Canal Basin was studied to analyze the spatial distribution of heavy metals in sediments. The results showed that there was a low level of heavy metal pollution and ecological risk in the reservoir, possibly originating from external wastewater input.
SCIENTIFIC REPORTS
(2022)
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
Xue-fang Tang, Yong Wu, Li-bi Han, Zhen Lan, Xing-ping Rong
Summary: Compared with water and air pollution, soil pollution is more concealed and poses higher risks. This study compared the leaching characteristics between column leaching and natural leaching tests and found that heavy metals were released in two stages and influenced by various factors. Although the column leaching test can simulate natural heavy metal migration to some extent, there are significant differences from actual accumulation.
ENVIRONMENTAL EARTH SCIENCES
(2022)
