Article
Environmental Sciences
Amor Hedfi, Manel Ben Ali, Montaser M. Hassan, Bander Albogami, Samia S. Al-Zahrani, Ezzeddine Mahmoudi, Paraskevi K. Karachle, Melissa Rohal-Lupher, Fehmi Boufahja
Summary: The majority of experimental studies on the effects of pollutants on meiofauna have been conducted in closed systems, with the current study revealing that single PAHs impact meiobenthic nematodes similarly in closed or open systems, with higher toxicity observed for benzo[a]pyrene. Closed systems contaminated with PAHs became organically enriched, resulting in changes in the types and numbers of deposit feeders. The responses of taxa to hydrocarbons in open systems were influenced by caudal morphology, with the effects of PAHs mixtures being both additive and synergistic. Based on this study, open systems are preferred over closed systems for more accurate research outcomes.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
David Skufca, Franja Prosenc, Tjasa Griessler Bulc, Ester Heath
Summary: The removal of 18 bisphenols at wastewater relevant concentrations was investigated in Chlorella vulgaris cultures with pH adjusted to 6.8 and non-adjusted cultures with pH raised to above 10. Most bisphenols showed a correlation between removal and chlorophyll a concentration, indicating the crucial role of algae in their removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Ainhoa Rubio-Clemente, Edwin Chica, Gustavo A. Penuela
Summary: This study developed several algorithms using MATLAB software to represent the removal of anthracene and benzo[a]pyrene by the Fenton process. The double exponential and BMG models showed the highest correlation coefficients in the removal kinetics.
Article
Food Science & Technology
Xue Zhang, Zihan Sun, Jinxia Liu, Tao Wang, Bolin Zhang, Hongfei Zhao
Summary: The aim of this study was to investigate the influence of bovine serum albumin (BSA) on the Lactobacillus-strain-mediated removal of benzo[a]pyrene (BaP). Combination of BSA with bacterial cells had varying levels of BaP removal for different strains. BSA enhanced the affinity between the bacterial cells and BaP, with its stability and surface properties affecting the binding process.
Article
Biochemistry & Molecular Biology
Dennis Asante-Sackey, Sudesh Rathilal, Emmanuel Kweinor Tetteh, Edward Kwaku Armah
Summary: Environmentalists are focusing on reuse, recycling, and recovery systems to meet the increasing water demand. Research into advanced treatment technologies has been enhanced to enable compliance with discharge limits in the petroleum industry. The integration of biological degradation and membrane separation has proven to be an effective technology for treating produced water with high salt, mineral, and oil content.
Article
Agricultural Engineering
Tatyana N. Shchemelinina, Elena M. Anchugova, Olga B. Kotova, Dmitry A. Shushkov
Summary: The development of synergetic biogeocomplices is urgently needed to achieve environmental sustainability by effectively degrading recalcitrant organic pollutants. The biogeosorbent based on analcime-bearing rock immobilized Chlorella vulgaris f. globosa has shown promising results in removing phenol from polluted water bodies. The biogeosorbent demonstrated higher stress resistance and improved phenol removal rates compared to microalgal suspension and ABR, making it a potentially more efficient and environmentally friendly solution.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Oumayma Kahla, Sondes Melliti Ben Garali, Fatma Karray, Manel Ben Abdallah, Najwa Kallel, Najla Mhiri, Hatem Zaghden, Badreddine Barhoumi, Olivier Pringault, Marianne Quemeneur, Marc Tedetti, Sami Sayadi, Asma Sakka Hlaili
Summary: The efficiency of a benthic diatom-associated bacteria in removing BaP and Flt was investigated in this study. Results showed a co-metabolic synergy between microalgae and associated bacteria in biodegrading PAHs, suggesting their potential application in the bioremediation of contaminated sites.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Cell Biology
Kinga A. Wisniewska, Anita U. Lewandowska, Sylwia Sliwinska-Wilczewska, Marta Staniszewska, Gracjana Budzalek
Summary: Air pollution is a longstanding issue that poses a significant threat to human health. Benzo(a)pyrene, a hazardous compound known for its carcinogenic properties, is a common air pollutant that frequently exceeds permissible levels worldwide. Recent research on global outbreaks, such as COVID-19, avian flu, measles, and SARS, has shown that viruses and bacteria are more dangerous when present in polluted air. However, the relationship between cyanobacteria, microalgae, and benzo(a)pyrene remains poorly understood, raising questions about potential threats in poor-quality air.
Article
Environmental Sciences
Qianyong Shen, Ranran Liu, Jingyi Chen, Guiying Li, Shengtao Ma, Yingxin Yu, Taicheng An
Summary: Occupational workers and residents near petrochemical industry facilities are exposed to multiple contaminants on a daily basis. However, little is known about the co-exposure effects of different pollutants based on biotransformation. This study investigated the changes in toxicity and co-exposure mechanism associated with different monoaromatic hydrocarbons (MAHs) when co-exposed with benzene, toluene, chlorobenzene, or nitrobenzene. The results showed that co-exposure to MAHs negatively affected the detoxification process of benzo[a]pyrene (BaP) and disturbed its metabolic pathways.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yinxiu Liang, Hongyan Zhai, Rumeng Wang, Yujing Guo, Min Ji
Summary: The use of water flow in soil microbial fuel cells (W-SMFCs) as a driving force for substrate transport was beneficial for faster startup and higher removal efficiency of benzo[a]pyrene (BaP). The interaction among microbial species was highly enhanced by water flow, facilitating BaP biodegradation in W-SMFCs.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Mina Yang, Haijing Zhang, Fei Chang, Xuefeng Hu
Summary: Chlorinated organic compounds are commonly found in saline waters, with their formation influenced by factors such as Cl-, pH, humic acid, electron donors, and particulate matter. A self-sensitized photochlorination reaction mechanism was proposed in this study.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Hua Meng, Guyanan Li, Wei Wei, Yansen Bai, Yue Feng, Ming Fu, Xin Guan, Mengying Li, Hang Li, Chenming Wang, Jiali Jie, Xiulong Wu, Meian He, Xiaomin Zhang, Sheng Wei, Yangkai Li, Huan Guo
Summary: This study identified 15 CpG sites associated with BPDE-Alb adducts, with methylation levels at 5 sites mediating the association between BPDE-Alb adducts and lung cancer risk. The addition of these CpG sites improved the discrimination for lung cancer compared to traditional factors. These results highlight DNA methylation alterations as potential mediators in lung tumorigenesis induced by B[a]P exposure.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Jiaxing Lu, Zizhang Guo, Mingyu He, Zhen Hu, Haiming Wu, Linlan Zhuang, Qiang Kong, Jian Zhang
Summary: The study found that applying a siphon in a constructed wetland can improve the removal efficiency of ammonia nitrogen and total phosphorus, promoting nitrogen cycling and nitrification/denitrification reactions. The environment created by the siphon favors the removal of benzo[a]pyrene and enhances the growth of benzo[a]pyrene-degrading bacteria.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Krystian Mokrzynski, Grzegorz Szewczyk, Tadeusz Sarna
Summary: This study measured the quantum yield and action spectra of singlet oxygen photogeneration by benzopyrenes and their ability to generate superoxide anion. The results revealed the photochemical activity of benzopyrenes in producing singlet oxygen and superoxide anion. Furthermore, the cytotoxicity of benzopyrenes was demonstrated in skin model cells, with concentration-dependent and light-dependent effects, leading to damage to cell mitochondria and increased levels of intracellular reactive oxygen species.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Xuran Du, Litao Wang, Ying Li, Jing Wu, Guanyu Chen, Hong Liang, Dawen Gao
Summary: This paper investigates the synergistic study on the adsorption and degradation of benzo[a]pyrene in water using macroporous adsorbent resins and white rot fungi. The research finds that resin AB-8 shows the best immobilization effect of enzymes and removal rate of benzo[a]pyrene. The combination of immobilized enzymes and adsorption resin achieves a removal rate of 92.78% for benzo[a]pyrene after 6 hours.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2023)
Article
Ecology
Alexander M. Cancelli, Frank A. P. C. Gobas
Summary: A mechanistic model was developed to assess the removal efficiency of pollutants in a wetland system, particularly in oil sands process-affected water (OSPW). The model simulated wetland mechanisms of chemical removal and showed that sustained wetland treatment is feasible. It is a helpful tool to evaluate the feasibility of treatment systems and to assess trade-offs in wetland design and operation.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Prakash Singh Thapa, Hiromu Daimaru, Seiji Yanai
Summary: This study assessed the vegetation recovery and erosion condition in a landslide area in central Japan. The results show that the upper slope, where reforestation activities were implemented, has seen significant vegetation recovery and no significant erosion, while the lower slope lacks vegetation and has experienced continued erosion.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Mike Jerauld, Forrest Dierberg, Thomas DeBusk, Scott Jackson, Kevin Grace, John Juston
Summary: The Everglades Stormwater Treatment Areas (STAs) are constructed wetlands built to remove phosphorus (P) from agricultural and urban runoff in support of Everglades restoration. Research shows that the levels of calcium (Ca) and alkalinity (Alk) have an impact on phosphorus removal in these wetlands.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Kalindhi Larios, Stefan Gerber, Rafael Munoz-Carpena, Patrick Inglett, K. Ramesh Reddy, Michael Chimney
Summary: This study modeled the phosphorus biogeochemical dynamics in one of the best performing Everglades treatment wetlands and found that the complexity of the hydrological system significantly affected the simulated water column P concentration. The modeling tool developed in this study can guide future data collection and optimization efforts for treatment wetlands in the Everglades.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Jing Hu, Benjamin Baiser, R. Thomas James, K. Ramesh Reddy
Summary: This study examined the long-term phosphorus retention in Stormwater Treatment Areas (STAs) and identified the factors influencing their performance. The results showed that the operational performance of STAs improved over time. There were notable differences among individual STAs, with the co-precipitation of phosphorus with calcium playing a critical role in one of the STAs. This highlights the complexity of phosphorus removal in STAs and the need for site-specific management strategies.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Odi Villapando, K. R. Reddy, J. King
Summary: The biogeochemical response to different flow conditions within two parallel flow-ways in Everglades Stormwater Treatment Area (STA)-2 was studied. It was found that there was a gradual decrease in the total phosphorus (TP) concentration from inflow to outflow for both emergent aquatic vegetation (EAV) and submerged aquatic vegetation (SAV) dominated systems, with EAV showing a higher reduction rate. Significant increase in TP concentration was observed in the SAV system under no flow condition, possibly due to the production of particulate phosphorus (PP) through various mechanisms.
ECOLOGICAL ENGINEERING
(2024)