Article
Environmental Sciences
Fabrizio Pietrini, Laura Passatore, Serena Carloni, Lorenzo Massimi, Maria Luisa Astolfi, Chiara Giusto, Massimo Zacchini
Summary: Environmental pollution caused by heavy metals is a significant threat to the environment and human health. Using safer substitutes for toxic heavy metals, like Bi instead of Pb, is a potential solution. However, there is limited research on the effects of Bi on living organisms, especially plants. This study found that Bi has a toxic effect on plant growth, reduces chlorophyll and carotenoid content, impairs nitrogen balance, and affects the photosynthetic machinery.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Environmental
Rokaia Lejri, Sonia Ben Younes, Ali Ellafi, Amir Bouallegue, Younes Moussaoui, Mohamed Chaieb, Ali Mekki
Summary: The study analyzed the physicochemical, microbiological, and spectral characteristics of tanning effluents, as well as the changes in effluents after biological treatment. The results showed a decrease in various parameters in the final effluent after treatment, and the presence of revivable bacteria in microbiological characterization with absence of certain pathogens.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Yuya Hashiguchi, Mohd Rafein Zakaria, Maeda Toshinari, Mohd Zulkhairi Mohd Yusoff, Yoshihito Shirai, Mohd Ali Hassan
Summary: The study assessed the quality and toxicity levels of final discharge from three different mills, showing that mill A with a bio-polishing plant had lower BOD, COD, and TSS values but higher toxicity in FET test compared to mill B and C. The effluent of mill B exhibited the highest toxicity, while mill C had lower survival rates after hatching.
ENVIRONMENTAL POLLUTION
(2021)
Review
Biochemistry & Molecular Biology
Miriam Pardo-Hernandez, Maria Lopez-Delacalle, Jose Manuel Marti-Guillen, Sara E. Martinez-Lorente, Rosa M. Rivero
Summary: Melatonin (MET) has been shown to mitigate the negative effects of metal toxicity in plants by regulating antioxidant defense systems, enhancing osmoregulation and photosynthetic efficiency, and upregulating stress tolerance-related genes. Additionally, MET is believed to be involved in the regulation of metal transport in plants. Despite significant progress, there is a need for further research to fully understand the role of MET in metal toxicity tolerance in plants.
Article
Agronomy
Arwa A. AL-Huqail, Pankaj Kumar, Ebrahem M. Eid, Bashir Adelodun, Sami Abou Fayssal, Jogendra Singh, Ashish Kumar Arya, Madhumita Goala, Vinod Kumar, Ivan Siric
Summary: Heavy metal pollution from industrial wastewaters has a significant impact on soil and cultivated crops. This problem is more common in developing countries like India where untreated industrial wastewaters are often discharged. The findings of this study reveal the negative effects of irrigation with contaminated water on the growth, productivity, and heavy metal accumulation of rice crops.
Article
Chemistry, Analytical
Wanqing Dai, Bibi Inumbra, Po Yu Wong, Alma Sarmiento, Ying Yau, Jie Han, Guozhu Mao, Yung-Kang Peng, Jian Lin Chen
Summary: Biological toxicity testing is crucial for identifying negative effects caused by substances like organic pollutants and heavy metals. Paper-based analytical device (PAD) offers advantages in terms of convenience, speed, environmental friendliness, and cost-effectiveness as an alternative to conventional methods of toxicity detection. However, detecting the toxicity of both organic pollutants and heavy metals is challenging for a PAD.
Article
Environmental Sciences
Atanas Pipite, Galana Siro, Ramesh Subramani, Sathiyaraj Srinivasan
Summary: The hot springs in Fiji have a rich bacterial diversity that could be valuable for producing enzymes, antibiotics, and other commercial products. This study evaluated the heavy metal concentration and bacterial diversity in two Fijian thermal mud pools. The results showed that the mud pools have therapeutic properties, are free from health-related issues of heavy metals and pathogens, and can be used for further research and monitoring programs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Engineering, Environmental
Panhui Fan, Liwei Wu, Qing Wang, Yu Wang, Hongmei Luo, Jingyuan Song, Meihua Yang, Hui Yao, Shilin Chen
Summary: Medicinal plants have various uses worldwide, but their quality is affected by cadmium pollution. Medicinal plants have complex mechanisms to cope with cadmium stress, including antioxidant systems and chelating peptides. While progress has been made in exploring the physiological mechanisms, research into molecular mechanisms is still lacking. This review provides a reference for studying the responses of medicinal plants to cadmium stress.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Biotechnology & Applied Microbiology
S. Saeidy, B. Petera, G. Pierre, T. A. Fenoradosoa, Djomdi Djomdi, P. Michaud, C. Delattre
Summary: The chemical structure, extraction processes, techno-functional and biological properties of Arabinogalactans (AGs) are discussed in this review, focusing on non-traditional plant sources. It highlights the health benefits and immunomodulatory effects of AGs in in-vivo model systems.
BIOTECHNOLOGY ADVANCES
(2021)
Review
Biodiversity Conservation
Shafeeq Ur Rahman, Yanliang Li, Sajjad Hussain, Babar Hussain, Waqas-ud-Din Khan, Luqman Riaz, Muhammad Nadeem Ashraf, Muhammad Athar Khaliq, Zhenjie Du, Hefa Cheng
Summary: The toxic effects of heavy metals on plants are a global concern, as they directly threaten the food supply chain. Studies have shown that exogenous application of phytohormones can mitigate the negative effects of heavy metal stress in plants and promote their growth and development. However, further research is needed to fully understand the potential pathways of phytohormones in mitigating heavy metal toxicity.
ECOLOGICAL INDICATORS
(2023)
Article
Multidisciplinary Sciences
Raymond Limen Njinga, Ayodele Philip Olufemi, Adebiyi Samuel Adebayo
Summary: People in northern Nigeria use herbal medicine to treat various ailments, but the accumulation of Cd and Cr in certain therapeutic herbs poses a potential cancer risk.
Article
Environmental Sciences
Shiguo Gu, Wei Zhang, Fei Wang, Zhanhang Meng, Yu Cheng, Zexuan Geng, Fei Lian
Summary: The pyrolysis of biomass containing excessive heavy metals can result in heavy metal contaminated biochar (BC). In addition to higher charring temperature, particle size of BC also plays a critical role in the content of heavy metals and its ecotoxicity. Content and chemical forms of cadmium (Cd) in BC fractions as well as the related algal toxicity were examined. The results showed that particle size significantly modified the chemical forms and ecotoxicity of Cd in BC, which has important implications for understanding the behavior and potential risk of heavy metal contaminated BC in the environment.
ENVIRONMENTAL POLLUTION
(2023)
Article
Plant Sciences
Agnieszka Domka, Roman Jedrzejczyk, Rafal Wazny, Maciej Gustab, Michal Kowalski, Michal Nosek, Jakub Bizan, Markus Puschenreiter, Marek Vaculik, Jan Kovac, Piotr Rozpadek
Summary: Plant microbiota plays a crucial role in adjusting plant metabolism to mitigate toxic metal pollution. The endophytic Sporobolomyces ruberrimus protects plants against excess metals by inhibiting Fe and Ni uptake through interference with plant ethylene homeostasis.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Environmental Sciences
Lorena S. Miranda, Godwin A. Ayoko, Prasanna Egodawatta, Wan-Ping Hu, Osama Ghidan, Ashantha Goonetilleke
Summary: This study examines the influence of sediment physico-chemical properties on metal bioavailability, highlighting the specific behaviors of different metal elements in sediments, and provides valuable information for future research in this area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Farhana Aziz Ujang, Ahmad Muhaimin Roslan, Nurul Atiqah Osman, Ashreen Norman, Juferi Idris, Mohammed Abdillah Ahmad Farid, Mohd Izuan Effendi Halmi, Misri Gozan, Mohd Ali Hassan
Summary: Palm oil mill effluent is a major source of pollution in Malaysia and is usually disposed of in nearby land or rivers. To improve effluent quality, a constructed wetland system with Napier grass was designed, effectively reducing levels of various pollutants. Bacterial communities associated with pollutant removal were identified, showing potential for further research in wastewater treatment.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)