Bioaccumulation and toxicity of perfluorooctanoic acid and perfluorooctane sulfonate in marine algae Chlorella sp.

Mao, Wenqian; Li, Mingyang; Xue, Xingyan; Cao, Wenming; Wang, Xinfeng; Xu, Fu-Liu; Jiang, Wei

doi:10.1016/j.scitotenv.2023.161882

Cited by 26 publications

(2 citation statements)

References 60 publications

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“…While PFAS pollution has been extensively researched in various parts of the world, there remains a notable gap in our understanding of the presence and impact of these chemicals on this continent. This group of human-made chemicals is widely used in various industrial and consumer products in Africa for their water and grease-resistance properties [34,35] . However, their persistent nature and potential adverse health effects have raised global concerns [36][37][38] that must not exclude African countries.…”

Section: What Is Africa's Position In the Global Knowledge About Pfas...mentioning

confidence: 99%

Per- and polyfluoroalkyl pollution in marine environments: a viewpoint about Africa

Ben-Haddad,

De-la-Torre,

Aragaw

et al. 2024

Water Emerg Contam Nanoplastics

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Per- and poly-fluoroalkyl substances (PFAS) represent an extensive and expanding group of chemicals considered contaminants of emerging concern (CECs). These elements have found widespread usage in diverse industrial and commercial sectors since the 1940s. The advancement of modern analytical methods in developed countries has significantly contributed to the increased research on the environmental behavior and risk assessment of PFAS. However, what about developing countries? Over time, the focus on PFAS has expanded beyond legacy PFAS to encompass novel ones. In this perspective, we focus on analyzing the existing knowledge concerning PFAS in the marine environment, aiming to shed light on the limited research pertaining to per- and polyfluoroalkyl pollution in the marine ecosystems of Africa.

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Section: What Is Africa's Position In the Global Knowledge About Pfas...mentioning

confidence: 99%

Per- and polyfluoroalkyl pollution in marine environments: a viewpoint about Africa

Ben-Haddad,

De-la-Torre,

Aragaw

et al. 2024

Water Emerg Contam Nanoplastics

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“…After discharged into aquatic environments, PFOA can be adsorbed to a wide range of environmental colloids and particles through electrostatic, hydrophobic, and ion exchange interactions [15,16]. Due to their extreme persistence and high bioaccumulation potential, PFOA can lead to acute and chronic impacts on individual, population, and community levels of living organisms via damaging the cell membrane, altering metabolism, triggering oxidative stress, and inhibiting growth [17,18]. Therefore, PFOA has been frequently observed in various ubiquitous environments, such as rivers, lakes, and groundwater [19], and even in human bodies [20] because of its high resistance to degradation and inappropriate management [21].…”

Section: Introductionmentioning

confidence: 99%

Insights into the Responses of the Partial Denitrification Process to Elevated Perfluorooctanoic Acid Stress: Performance, EPS Characteristic and Microbial Community

Zhang,

Feng

et al. 2023

Water

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This study aimed at investigating the potential impacts of perfluorooctanoic acid (PFOA) exposure on the partial denitrification (PD) system. Our results indicated that nitrite accumulation rates were significantly decreased to 67.94 ± 1.25%–69.52 ± 3.13% after long-term PFOA exposure (0.5–20 mg/L), while the nitrate transformation ratio was slightly impacted. The PFOA removal efficiency gradually decreased from 67.42 ± 3.39% to 6.56 ± 5.25% with an increasing PFOA dosage, indicating that the main PFOA removal pathway was biosorption. The average EPS contents increased by two folds, which suggested that exposure to PFOA significantly stimulated EPS secretion. Excitation emission matrix analysis revealed that PFOA exposure promoted the secretion of tryptophan protein-like, humic acid-like, and aromatic protein II-like substances, which may act as a protective barrier against PFOA toxicity. Moreover, significant changes in characteristic peaks after PFOA exposure were shown as indicated by Fourier transform infrared spectroscopy. High-throughput sequencing suggested that PFOA significantly decreased bacterial richness and increased evenness, indicating that toxicity effects of PFOA were more pronounced for abundant species (e.g., Thauera) than rare species. Thauera was the most dominant genus responsible for nitrite accumulation, whose abundance significantly decreased from 35.99 ± 2.67% to 18.60 ± 2.18% after PFOA exposure. In comparison, the abundances of common denitrifiers, such as Denitratisoma, Bdellovibrio, and OLB8, significantly increased, suggesting that these genera were potential PFOA-resistant bacteria. This study presents new insights into the effect of PFOA on a PD system.

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Algae Application for Treating Wastewater Contaminated with Heavy Metal Ions

Aghababai Beni,

Haghmohammadi,

Delnabi Asl

et al. 2024

Environmental Science and Engineering

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Bioaccumulation and toxicity of perfluorooctanoic acid and perfluorooctane sulfonate in marine algae Chlorella sp.

Cited by 26 publications

References 60 publications

Per- and polyfluoroalkyl pollution in marine environments: a viewpoint about Africa

Per- and polyfluoroalkyl pollution in marine environments: a viewpoint about Africa

Insights into the Responses of the Partial Denitrification Process to Elevated Perfluorooctanoic Acid Stress: Performance, EPS Characteristic and Microbial Community

Algae Application for Treating Wastewater Contaminated with Heavy Metal Ions

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