Review
Chemistry, Physical
Gianni Gallusi, Antonio Libonati, Mario Piro, Virginia Di Taranto, Edoardo Montemurro, Vincenzo Campanella
Summary: According to the study, patients with dental amalgam restorations do not have an increased risk of systemic diseases compared to those with resin-based restorations. Further randomized controlled trials are needed to fully evaluate the safety of dental amalgam compared to modern restorative materials.
Article
Neurosciences
Mark S. Orlando, Tanzy Love, Donald Harrington, Adam C. Dziorny, Conrad F. Shamlaye, Gene E. Watson, Edwin van Wijngaarden, Philip W. Davidson, Gary J. Myers
Summary: This study investigates the impact of low-level exposure to methylmercury and mercury vapor on auditory function and finds inconsistent findings. Although some participants had hearing loss, the association with methylmercury and mercury vapor exposure was not significant.
Article
Environmental Sciences
Petrus Galvao, Bruna Sus, Jose Lailson-Brito, Alexandre Azevedo, Olaf Malm, Tatiana Bisi
Summary: This study investigated the bioaccumulation of monomethylmercury (MeHg) in deep-sea fish from the Southeast Atlantic Ocean, revealing that muscle tissue is the main storage site for MeHg, while liver tissue contains the highest total mercury concentrations. The research also highlights the promotion of mercury biomagnification in a tropical upwelling ecosystem, suggesting that upwelling areas may serve as hot spots for monitoring MeHg in marine biota.
Article
Dentistry, Oral Surgery & Medicine
James R. Allison, Karthik Chary, Chris Ottley, Quoc C. Vuong, Matthew J. German, Justin Durham, Peter Thelwall
Summary: This study investigates the release of mercury from amalgam during MRI scanning. The results show that the magnetic field strength and RF power have an impact on the release of mercury, but the amount released is small compared to the release during amalgam maturation. Therefore, the release of amalgam mercury during MRI is unlikely to have a clinically meaningful impact and is highly likely to remain below safe levels.
JOURNAL OF DENTISTRY
(2022)
Article
Environmental Sciences
Afete Musliu, Lule Beqa, Gani Kastrati
Summary: Dental amalgam in dental clinics in Kosova serves as an unregulated source of mercury, with existing environmental policies lacking sufficient measures to control its use and waste management. Current national regulations categorize dental health care waste as hazardous, but fail to impose restrictions on amalgam use or enforce proper waste disposal, resulting in inconsistent legislation. New regulations, revised hazardous waste management standards, and infrastructure in compliance with EU regulations are needed to prevent adverse effects of amalgam waste.
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2021)
Article
Biochemistry & Molecular Biology
Humeyra Tercanli, Esra Yavuz, Sevcihan Gunen Yilmaz, Selmi Yardimci
Summary: This study investigates the impact of amalgam restorations on mercury concentration in saliva, as well as the influence of restoration number, surface number, and chewing. The findings reveal that mercury concentration in unstimulated saliva is higher in the study group compared to the control group, and an increase in the number of amalgam restorations and surfaces leads to higher mercury concentration in saliva. Chewing does not have a significant effect on mercury concentration. Further research should explore the effects of chewing on mercury concentrations.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Ying-Jie Li, Qi Lin, Zheng-Hua Zhang, Tai-Bao Wei, Bingbing Shi, Hong Yao, You-Ming Zhang
Summary: Numerous new methods have been developed for synthesizing novel nanomaterials with unique functions. One novel strategy involves forming fluorescent nanoparticles in situ, which can efficiently sense Hg2+ in living cells and separate Hg2+ from water.
Article
Toxicology
Lei Yin, Simon Lin, Anne O. Summers, Van Roper, Matthew J. Campen, Xiaozhong Yu
Summary: This study analyzed data from NHANES to assess the impact of seafood consumption and dental amalgam restorations on human exposure to mercury. The findings suggest that seafood consumption increases levels of total mercury and methyl mercury in urine and blood, but not inorganic mercury. In contrast, the number of dental amalgam restorations showed a strong correlation with levels of mercury in blood and urine.
TOXICOLOGICAL SCIENCES
(2021)
Review
Clinical Neurology
E. Fuller Torrey, Wendy Simmons
Summary: Environmental toxicants, particularly mercury, may play a significant role in the pathogenesis of Parkinson's disease. Current research on the association between mercury exposure and Parkinson's disease is limited, but existing studies suggest a potential link.
PARKINSONS DISEASE
(2023)
Article
Environmental Sciences
Yoshiki Ishida, Harumi Aoki, Taira Miyasaka, Yusuke Aoyagi, Daisuke Miura, Akikazu Shinya
Summary: The study found that reducing the amount of mercury left in the oral cavity and drainage system after dental amalgam removal can be achieved by cutting the amalgams into fragments, using cooling water, and intraoral suction. Furthermore, using amalgam separators can significantly decrease the mercury content in discharge water, preventing the drainage of mercury into the environment.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Environmental Sciences
Hongxia Du, Pan Guo, Tao Wang, Ming Ma, Dingyong Wang
Summary: The bioaccumulation of MeHg in edible organisms living in the rice-based ecosystem was significantly higher than in paddy soils and rice roots, even though total Hg levels were higher in rice roots and grains. This indicates a potential elevated MeHg exposure risk through consumption, especially for local residents. The study highlights the importance of reducing the consumption of rice, eels, and loaches to mitigate MeHg exposure risks.
ENVIRONMENTAL POLLUTION
(2021)
Review
Environmental Sciences
Jin Zhang, Chengjun Li, Wenli Tang, Mengjie Wu, Mingying Chen, Huan He, Pei Lei, Huan Zhong
Summary: Wetlands are important areas for studying mercury (Hg) biogeochemistry and have attracted global attention. A literature analysis of 15,813 publications on Hg in wetlands was conducted, revealing the changing focus of research over time. The research priorities for future studies include understanding the factors controlling methylmercury (MeHg) production, demethylation processes, bioaccumulation, and the role of wetlands in Hg circulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Tao Sun, Yongmin Wang, Chuxian Li, Jinyong Huang, Yingpeng Hua, Caipeng Yue, Hongbo Cha, Yongjiag Zhang, Dingyong Wang
Summary: The size of straw incorporation affects the accumulation of methylmercury in rice grains, with powdered straw reducing the accumulation by regulating the release of organic matter fractions in paddy soil and restraining net Hg methylation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Adi Barocas, Claudia Vega, Alejandro Alarcon Pardo, Julio M. Araujo Flores, Luis Fernandez, Jessica Groenendijk, Jessica Pisconte, David W. Macdonald, Ronald R. Swaisgood
Summary: Driven by global gold price surges and additional socio-economic factors, artisanal small-scale gold mining (ASGM) in the Global South is increasing, resulting in significant mercury (Hg) emissions into the air and fresh-water. This study examined the factors influencing mercury accumulation in fish in oxbow lakes in Peru's Madre de Dios region and found that Hg levels were associated with ASGM activities, water quality, and fish trophic level. The results highlight the risks of high Hg exposure to human and top carnivore populations in neotropical ecosystems undergoing degradation due to ASGM.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Hasti Ziaei, Balaji Rao, Tea V. Wood, Uriel Garza-Rubalcava, Ashkan Alborzi, Huayun Zhou, Paul Bireta, Nancy Grosso, Danny Reible
Summary: The South River in Waynesboro, Virginia is contaminated with mercury due to historical releases from an industrial facility. Two sampling events were conducted in 2015 to assess mercury concentrations in the bank interstitial waters during base flows and after flooding events. The results showed higher mercury concentrations during bank drainage compared to base flow conditions. Laboratory experiments using South River sediments revealed that drainage cycles can result in high mercury leachate from contaminated sediment. A remedial approach involving sediment removal and the placement of biochar and an armoring layer successfully decreased mercury concentrations.
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)