Article
Marine & Freshwater Biology
Sierra M. Imanse, Chris L. Anchor, Gretchen C. Anchor, Jennifer A. Landolfi, Michael J. Kinsel, Jeffrey M. Levengood, Martha A. Delaney, Karen A. Terio
Summary: This study evaluated the potential association between muscle tissue contaminant concentrations of mercury and polychlorinated biphenyls (PCBs) and indicators of health in fish. The results showed that concentrations of both toxicants exceeded the lowest threshold for fish consumption. Mercury was positively correlated with pathological changes in the liver and spleen. However, the potential effects on reproduction and behavior were not fully assessed and further studies are needed.
AQUATIC TOXICOLOGY
(2022)
Article
Environmental Sciences
Michael W. Duffel, Kristopher Tuttle, Hans-Joachim Lehmler, Larry W. Robertson
Summary: PCB sulfates bind reversibly with high affinity to human serum proteins, are taken up by cells and tissues, and may be hydrolyzed to more toxic OH-PCBs. Human hepatic microsomal sulfatase can catalyze the hydrolysis of PCB sulfates to OH-PCBs, potentially contributing to the retention and increased exposure time of OH-PCBs.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2021)
Article
Environmental Sciences
Leanne L. Stahl, Blaine D. Snyder, Harry B. McCarty, Thomas M. Kincaid, Anthony R. Olsen, Tara R. Cohen, John C. Healey
Summary: Most fish consumption advisories in the U.S. are for mercury, PCBs, and recently PFAS. A survey was conducted to characterize the contamination of mercury, PCBs, and PFAS in fish from U.S. rivers on a national scale. The results showed that all fish fillet samples contained detectable levels of mercury and PCBs, while a high percentage of samples contained PFAS.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Engineering, Environmental
Auwalu Hassan, Fauziah S. Hamid, Agamuthu Pariatamby, Nurul Shamsinah M. Suhaimi, Noor Maiza binti M. Razali, Kimberly N. H. Ling, Priya Mohan
Summary: This review provides a detailed overview of bioremediation technologies for PCB-contaminated environments, discusses bioaugmentation approaches for treating contaminated soil, sediment, and wastewater, explores limitations and strategies to improve efficiency, gives an update on PCB biodegradation studies and mechanisms, and explores future research prospects based on the reviewed articles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Matthew J. Dellinger, Lora Daskalska, Michael Ripley
Summary: The Chippewa Ottawa Resource Authority (CORA) has been monitoring contaminant concentrations in lake trout and lake whitefish from lakes Superior, Huron, and Michigan since 1991. The program is important for the Ojibwa and Ottawa tribes' fishing rights and consumption advice. The analysis of data from the past three decades shows a decreasing trend in PCBs but an increasing trend in Hg tissue burdens in the fish. PFAS were also detected in Lake Michigan samples, which can impact fish consumption advice.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
An Li, Qiaozhi Tang, Kenneth E. Kearney, Kathryn L. Nagy, Jing Zhang, Susan Buchanan, Mary E. Turyk
Summary: Seafood consumption is more frequent among Asians compared to other ethnic groups in the U.S., but there is little information about how culturally specific fish consumption contributes to exposure to toxicants. This study surveyed fish consumption among Chinese, Korean, and Vietnamese communities in Chicago and analyzed 103 seafood samples for mercury and organic chemicals. The research found that certain types of fish, such as bluefish, pike, and tuna steak, had high mercury levels, while octopus, shrimp, and tilapia were the least contaminated. Omega-3 fatty acids were more associated with organic contaminants than mercury. Consumption limitations were identified for seven types of fish based on risk assessment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Marco Capodiferro, Esther Marco, Joan O. Grimalt
Summary: A study analyzed 1345 specimens of wild fish and seafood from the western Mediterranean Sea to assess mercury levels and determine which species meet EU recommendations for human consumption. Only 13 species were found to have mercury levels below the recommended threshold. These species, including sardines, anchovies, and squid, have lower mercury concentrations compared to others in the same environment. It is important for health authorities to pay attention to species that do not meet EU thresholds and provide appropriate health recommendations, especially for pregnant women and children.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Clara Amalie Gade Timmermann, Henning Sloth Pedersen, Pal Weihe, Peter Bjerregaard, Flemming Nielsen, Carsten Heilmann, Philippe Grandjean
Summary: This study found a negative association between increased exposure to environmental chemicals among Greenlandic children and post-vaccination antibody concentrations, with an increased risk of not being protected against diphtheria despite appropriate vaccination. These findings emphasize the potential risks of environmental chemical exposures in the Arctic population.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Xiangtao Jiang, Niki Conner, Kaijun Lu, Jace W. Tunnell, Zhanfei Liu
Summary: Nurdles, also known as plastic resin pellets, are a major source of plastic pollution on beaches globally. This study collected nurdles from 24 sites in the coastal bend region of south Texas and investigated their morphologies and associated pollutants. The results showed variations in color, shape, polymer composition, and oxidation degree of the nurdles. PAHs and mercury were detected on nurdles at some sampling sites, indicating potential risks of pollutant exposure to marine organisms in ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Public, Environmental & Occupational Health
Eleni Papadopoulou, Jeremie Botton, Ida Henriette Caspersen, Jan Alexander, Merete Eggesbo, Margaretha Haugen, Nina Iszatt, Bo Jacobsson, Helle Katrine Knutsen, Helle Margrete Meltzer, Verena Sengpiel, Nikos Stratakis, Kristine Vejrup, Anne Lise Brantsaeter
Summary: Maternal seafood intake and prenatal mercury exposure during pregnancy may influence children's growth trajectories, with the direction of this influence varying depending on the type of seafood consumed and the level of mercury exposure. Prenatal mercury exposure was found to be negatively associated with child growth.
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
(2021)
Article
Engineering, Environmental
Thomas Schettgen, Andre Esser, Anne Alt, Isabella Randerath, Thomas Kraus, Patrick Ziegler
Summary: This study investigated the internal exposure of employees in a German silicone rubber facility to decomposition products of 2,4-dichlorobenzoyl peroxide. The results showed a considerable uptake of these products in workers from all work areas, with individual levels depending on the work task. The presence of carcinogenic PCBs in the samples raises concerns for the workers' additional exposure to these substances.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Marine Lemaitre, Pauline Frenoy, Thibault Fiolet, Caroline Besson, Francesca Romana Mancini
Summary: This study analyzed the relationship between dietary exposure to DL and NDL PCB and NHL risk, finding a positive association between DL PCB and Diffuse Large B Cell Lymphoma, and a negative association between NDL PCB and follicular lymphoma. However, these associations were no longer significant when fish and dairy product consumption was adjusted for.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Shuang Wang, Jibing Li, Longfei Jiang, Shanquan Wang, Xuan Zhao, Yeliang Dai, Chunling Luo, Gan Zhang
Summary: The study applied stable-isotope probing to investigate the degradation of PCBs mediated by RD-AO, confirming the impact of the anaerobic stage on subsequent AO and its potential mechanism. Additionally, four lineages (Arenimonas, Steroidobacter, Sulfurifustis, and Thermoanaerobacterales) were identified as PCB degraders for the first time, suggesting the recruitment of novel bacteria involved in PCB aerobic degradation in the anaerobic-aerobic two-stage treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Mia Stravik, Klara Gustin, Malin Barman, Michael Levi, Anna Sandin, Agnes E. Wold, Ann-Sofie Sandberg, Maria Kippler, Marie Vahter
Summary: This study assessed biomarkers in the blood and urine of 549 pregnant women to investigate the effects of fish and seafood intake on fetal development. The results showed that erythrocyte mercury and urinary arsenobetaine are reliable indicators of seafood intake.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Brandon S. Gerig, Dominic T. Chaloner, Richard R. Rediske, Gordon Paterson, Gary A. Lamberti
Summary: In this study, the bioaccumulation and persistence of biotransported contaminants were examined by adding salmon carcasses and eggs to a stream in Michigan, USA. The introduction of salmon led to a significant increase in PCB and DDE burden in resident trout, but no change in total mercury levels. Two years after the experiment, the POP concentrations in resident trout returned to pre-addition levels. The study suggests that the consumption of salmon eggs drove the increase in POP burden, while Hg bioaccumulation was influenced by watershed sources.
ENVIRONMENTAL POLLUTION
(2023)
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)