Article
Environmental Sciences
Pan Sun, Chenchen Qu, Zhenqian Xiong, Yafeng Han, Fuhai Ma, Peng Cai, Wenli Chen, Qiaoyun Huang
Summary: Soil heavy metal pollution, especially the combination of As and Cd pollution in paddy fields, is a major risk for sustainable agriculture. In this study, organic fertilization (OF) combined with intermittent irrigation (II) proved to be the most effective strategy for reducing As and Cd contents in rice grains under compound pollution. The conversion of available As and Cd to stable species under OF+II was supported by changes in soil attributes such as pH, Eh, soluble Fe, and dissolved organic carbon (DOC).
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Ching-Chang Lee, Yi-Yun Wu, Colin S. Chen, Chien-Jung Tien
Summary: This study found the presence of SCCPs in sediments and fish from major rivers in Taiwan, indicating potential sources from human activities and accumulation in sediments. SCCP levels in sediments of 20 major rivers in Taiwan may pose potential ecological risks, but consumption of contaminated river fish showed minimal health risks for most residents, with some concern for health risks in children due to potential bioaccessibility of SCCPs. Routine monitoring of SCCPs in river ecosystems is recommended to protect aquatic organisms and human health.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Changsheng Jin, Zhongwu Li, Andrew S. Hursthouse, Xiang Ding, Mi Zhou, Jia Chen, Bolin Li
Summary: In sediment environments, Mn minerals have strong affinities for DOM and can regulate its constituents and reactivity through fractionation. However, the effects of DOM fractionation by Mn minerals on contaminant behaviors are still unclear.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Biochemistry & Molecular Biology
Poulami Sen, Nilanjan Das, Nimai Chandra Saha, Santu Ghosh, Ayan Mondal, Sudipto Mandal
Summary: Contamination of Cd in the Dankuni wetland system in India was investigated, and it was found that individuals living near the wetland and with low income and over the age of fifty had a high risk of Cd contamination. Their average daily intake rate was quite high and the risk could be minimized by checking the Cd level at the entrance of the reservoir.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Xin Wen, Xu Yang, Tantan Wang, Zihao Li, Chi Ma, Wenhao Chen, Yubo He, Chang Zhang
Summary: This study investigated the impact of dissolved organic matter (DOM) from different sources on Hg(II) photoreduction in paddy water. The results showed that DOM-like fraction played a more significant role than suspended particulate matter-like fraction and bacteria-like fraction in Hg(II) photoreduction. Under irradiation, all types of DOM samples enhanced Hg(II) photoreduction, with biochar DOM showing the highest efficiency. Analysis of fluorescence spectroscopy and mass spectrometry revealed that DOM with higher lignin/carboxy-rich acyclic molecules, condensed aromatics structures, and phenolic compounds could promote the formation of O-2(center dot-).
Article
Agronomy
Ratneswar Poddar, Pravat Utpal Acharjee, Kallol Bhattacharyya, Sanmay Kumar Patra
Summary: Arsenic contamination in ground water is a concern for crop irrigation. This study investigated different water management treatments for broccoli cultivation in an arsenic-affected village. The results showed that using 25% shallow tube well water and 75% pond water was the safest option.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2023)
Article
Environmental Sciences
Priyadarsi D. Roy, Oscar Agesandro Garcia-Arriola, Sekar Selvam, Irma Gabriela Vargas-Martinez, Jose Luis Sanchez-Zavala
Summary: This study evaluated the water quality of a lake and surrounding groundwater in Mexico, and found that most samples were suitable for drinking and irrigation, although fluoride content was high in some samples, posing potential health risks.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Wen-Hao Leu, Ho-Wen Chen, Chien-Yuan Chen
Summary: This study used images captured by an unmanned aerial system to analyze the impact of natural hazards on the irrigation channel of the Qishan River and proposed solutions. The results revealed blockages in the downstream section of the channel, calling for the restoration of damaged riverbed groundsills and the construction of subsurface water transfer structures.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Engineering, Environmental
Yu Zeng, Qinglong Fu, Dionysios D. Dionysiou, Mingyang Zhang, Mabo Li, Bo Ye, Ning Chen, Juan Gao, Yujun Wang, Dongmei Zhou, Guodong Fang
Summary: This study investigated the photo-transformation of Imidacloprid (IMD) during rice growth and found that the presence of different reactive intermediates (RIs) significantly enhanced the degradation rate of IMD. Evaluation of the photodegradation products of IMD showed that some were harmful to aquatic animals, while others were detoxification processes. A model was developed to predict the photodegradation kinetics of IMD in paddy waters at different stages of rice growth.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Mariana Vezzone, Ricardo Cesar, Aline Serrano, Rodrigo Lourenco, Ana Paula Rodrigues, Zuleica Castilhos, Roberto Meigikos dos Anjos, Helena Polivanov
Summary: This study investigated the mercury concentrations in Rodrigo de Freitas Lagoon in Rio de Janeiro, Brazil to assess the ecological and human health risks associated with consuming contaminated fish. Sediments and fish samples were collected for mercury determination, and a model for estimating mercury in fish was evaluated. For human health risk assessment, the hazard quotient was calculated for fishermen and market consumers. The results showed high mercury concentrations in the northern section of the lagoon, posing a potential health hazard for fishermen but no risk for market consumers.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Environmental Sciences
Amaechi Joshua Nwinyimagu, Joseph Effiong Eyo, Godwin Nkwuda Nwonumara, Ayse Basak Engin
Summary: This study investigated the presence of herbicide residues in water, sediment, and African catfish from Anyim River. The aim was to assess the pollution status of the river and potential health hazards. The herbicides analyzed included glyphosate-based ones such as sarosate, paraquat, clear weed, delsate, and roundup. The concentrations of herbicide residues in sediment, fish, and water ranged from 0.02 to 0.77 μg/gdw, 0.01-0.26 μg/gdw, and 0.03-0.43 μg/L, respectively. The risk assessment indicated adverse effects on fish species in the river and potential health implications for humans consuming the contaminated fish on a long-term basis.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2023)
Article
Environmental Sciences
Ulaganathan Arisekar, Robinson Jeya Shakila, Rajendren Shalini, Balasubramanium Sivaraman, Geevartnam Jeyasekaran, Narayanan Asha Hema Malini
Summary: This study analyzed the heavy metal concentration in reef-associated surface sediment samples from Hare Island in the Gulf of Mannar Marine Biosphere Reserve and evaluated the sediment quality based on various indices. Most samples were categorized as low-risk with low toxicity probability, suggesting the need for routine monitoring to maintain a clean and sustainable ecosystem in the region.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Manting Rao, Xiangyu Li, Xiaoqiong Xu, Duo Zhang, Jiaojiao Ma, Jiayin Huang, Jiayi Xu, Quanzhi Zheng, Jiajia Ji, Shaoyou Lu
Summary: 11 trace elements in 184 aquatic products from Shenzhen, China were determined, and it was found that 57% of samples exceeded the upper limits for arsenic (As) and 11% for cadmium (Cd) set by the Chinese National Food Safety Standards. The accumulation of As and Cd in aquatic products presents a potential health risk for residents of Shenzhen.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Doris Chirinos-Peinado, Jorge Castro-Bedrinana, Elva Rios-Rios, Gianfranco Castro-Chirinos, Yubaly Quispe-Poma
Summary: This study evaluated the potential risk to human health from lead (Pb), cadmium (Cd), and arsenic (As) in milk produced near a mini mineral concentrator in the Central Andes valley. The levels of Pb and Cd in the milk exceeded the maximum permissible limits, while the level of As was below the limit. The intake of Pb and Cd from milk consumption was below the estimated tolerable intake for all age groups, but the intake of As exceeded the tolerable intake for individuals below 19 years old. The results are valuable for preventing adverse health impacts from safe milk consumption.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2023)
Article
Environmental Sciences
Doris Chirinos-Peinado, Jorge Castro-Bedrinana, Elva Rios-Rios, Gloria Mamani-Gamarra, Elias Quijada-Caro, Anali Huacho-Jurado, Wilfredo Nunez-Rojas
Summary: The dairy basin of the Mantaro River in Peru is heavily affected by anthropogenic disturbances, including contamination from metallurgical mining activities and milk contaminated with lead and cadmium. This study measured the concentrations of lead and cadmium in milk samples and found that the concentrations of cadmium exceeded safe limits, posing a carcinogenic health risk, especially for children.
Article
Environmental Sciences
Yao Yao, Hang Zhou, Xiu-Lan Yan, Xiao Yang, Kang-Wen Huang, Juan Liu, Li-Juan Li, Jing-Yi Zhang, Jiao-Feng Gu, Yaoyu Zhou, Bo-Han Liao
Summary: Arsenic-contaminated paddy soil can lead to elevated levels of As in rice plants, posing a risk to human health. The Fe3O4-modified biochar (NBC-Fe) was found to reduce the bioavailability of As in soil, decrease As accumulation in rice, and increase the thickness of iron plaque to sequester As on rice root surfaces, making it a promising soil amendment for remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Jing-Yi Zhang, Hang Zhou, Peng Zeng, Shi-Long Wang, Wen-Jun Yang, Fang Huang, Yang Huo, Shu-Ning Yu, Jiao-Feng Gu, Bo-Han Liao
Summary: This study investigated the effects of different exogenous iron materials on iron plaque formation on rice roots and its impact on the absorption, migration, and transportation of Cd and Fe in rice plants. The results showed that applying nano-Fe3O4-modified biochar (BC-Fe) promoted the formation of iron plaque and reduced the translocation and accumulation of Cd in aerial rice tissues. Different iron materials had varying effects on iron plaque formation, with BC-Fe showing a higher proportion of crystallized iron plaque and significantly reducing the translocation factor of Cd.
Article
Environmental Sciences
Peng Zeng, Zhaohui Guo, Xiyuan Xiao, Hang Zhou, Jiaofeng Gu, Bohan Liao
Summary: Broussonetia papyrifera showed good tolerance and phytoremediation potential in heavy metal-contaminated soil by enhancing antioxidant enzyme activities in leaves and binding HMs with organic acids in roots. Additionally, it exhibited promising phytoextraction capabilities for Cd and Zn in contaminated soil.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2022)
Article
Environmental Sciences
Yi Jiang, Hang Zhou, Jiao-Feng Gu, Peng Zeng, Bo-Han Liao, Yun-He Xie, Xiong-Hui Ji
Summary: The study found that the addition of a combined amendment can decrease the uptake of cadmium and arsenic in paddy fields with moderate to high contamination levels, resulting in improved soil health and brown rice quality.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Wenjun Yang, Shilong Wang, Hang Zhou, Min Zeng, Jingyi Zhang, Fang Huang, Shiping Shan, Zhaohui Guo, Hongwei Yi, Zhiguang Sun, Jiaofeng Gu, Bohan Liao
Summary: The study investigates the use of limestone and sepiolite as a combined amendment for the remediation of mildly Cd-contaminated paddy fields. It reveals that the application of limestone and sepiolite can increase soil pH, decrease acid-extractable Cd content, and reduce Cd accumulation in rice. Appropriate application and supplementation of limestone and sepiolite can effectively ensure the clean production of rice over three consecutive rice seasons.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2022)
Article
Environmental Sciences
Peng Zeng, Binyun Wei, Hang Zhou, Jiaofeng Gu, Bohan Liao
Summary: This study investigated the effects of foliar spraying silicon (Si) and water management on the uptake and transport of cadmium (Cd) and arsenic (As) in rice grown in paddy soils that were seriously co-contaminated with Cd and As. The results showed that the co-application of water management and foliar spraying Si effectively reduced the bioavailability of Cd and As in soil and decreased their uptake and transport in rice. In particular, the treatment combining moisture at the maturing stage and foliar spraying Si resulted in significant reductions in Cd and As contents in both soil and brown rice. This study suggests that foliar spraying Si combined with moisture management may be a promising approach to inhibit the transport and accumulation of Cd and As in rice.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Peng Zeng, Zhaohui Guo, Xiyuan Xiao, Chi Peng, Bohan Liao, Hang Zhou, Jiaofeng Gu
Summary: This study investigated the potential of tree-herb intercropping for the ecological remediation of PTM-contaminated soil. The results showed that the intercropping system improved the growth of Morus alba L. and increased the uptake of PTMs. The intercropping also enhanced the biological quality of the contaminated soil and increased the relative abundance of microorganisms.
Article
Environmental Sciences
Wen-Tao Tan, Hang Zhou, Shang-Feng Tang, Peng Zeng, Jiao-Feng Gu, Bo-Han Liao
Summary: Metal oxide-modified biochar showed excellent adsorption performance in wastewater treatment. In this study, iron-manganese (Fe-Mn) oxide-modified biochar (BC-FM) was synthesized using rice straw biochar, and its adsorption process, removal effect, and mechanism of cadmium (Cd) adsorption in wastewater treatment were investigated. The results demonstrated that BC-FM had a significantly higher adsorption capacity for Cd compared to other modified biochars mentioned in the literature. The Cd adsorption by BC-FM followed a spontaneous chemical adsorption mechanism. Additionally, BC-FM exhibited good reusability and stability. Therefore, metal oxide-modified biochar can be an efficient adsorbent for treating Cd-contaminated wastewater.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Yi Jiang, Xuan-Tao Yi, Meng-Yu Liu, Bei-bei Liu, Hang Zhou, Peng Zeng, Bo-Han Liao, Jiao-Feng Gu
Summary: The application of a calcium and iron-based amendment in contaminated paddy soils led to increased soil enzyme activity, reduced levels of cadmium and arsenic, and improved soil fertility and health.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Shang-Feng Tang, Hang Zhou, Wen-Tao Tan, Jun-Guo Huang, Peng Zeng, Jiao-Feng Gu, Bo-Han Liao
Summary: This study investigated the adsorption of Pb(II) by iron-manganese oxide-modified biochar (FM-BC) and analyzed its adsorption mechanism. The results showed that FM-BC significantly enhanced the adsorption capacity and efficiency. Therefore, FM-BC is a promising adsorbent for Pb(II) removal from wastewater.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Gu Jiaofeng, Huo Yang, Zeng Peng, Liao Bohan, Zhou Hang
Summary: This study investigated the influence of phosphorus (P) on the formation of iron plaque on rice roots and its impact on cadmium (Cd) uptake. The results showed that while P supply enhanced the formation of iron plaque, it reduced the retention capability of Cd. Excessive P fertilizer application can lead to increased accumulation of Cd in rice plants.
Article
Environmental Sciences
Peng Zeng, Hang Zhou, Penghui Deng, Jiaofeng Gu, Bohan Liao
Summary: This study found that topdressing silicon fertilizer during the booting and filling stages of rice cultivation can increase rice yield, promote the formation of iron plaque, and reduce the inorganic arsenic content in brown rice.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Wen-Tao Tan, Hang Zhou, Shang-Feng Tang, Qiong Chen, Xia Zhou, Xin-Hui Liu, Peng Zeng, Jiao-Feng Gu, Bo -Han Liao
Summary: The study investigated the role of Fe and Mn in immobilizing Cd in soil and reducing Cd uptake by rice using X-ray photoelectron spectroscopy (XPS) characterization and chemical analysis. The results showed that Fe and Mn loaded on biochar (BC-FM) enhanced the removal of CaCl2 extractable Cd from the soil and Cd in pore water compared to BC. The excellent adsorption performance of BC-FM, enhanced by Fe-Mn oxides, reduced the available Cd in the soil and inhibited Cd accumulation in rice, resulting in increased rice biomass and Cd concentrations within the national safety standard.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Peng Zeng, Jiawei Liu, Hang Zhou, Binyun Wei, Jiaofeng Gu, Ye Liao, Bohan Liao, Xufeng Luo
Summary: Limestone and sepiolite combined amendment and silicon fertilizers are commonly used for the remediation of Cd-polluted paddy soil. The co-application of LS and Si fertilizer can decrease Cd accumulation in soil and rice grains, while increasing Si content in rice.
