Article
Environmental Sciences
Manjurul Islam Chowdhury, Tanmoy Sana, Logeshwaran Panneerselvan, Anithadevi Kenday Sivaram, Mallavarapu Megharaj
Summary: This study investigated the toxicity of PFOS on the behavioral responses of C. elegans, and for the first time found its transgenerational effects. The results showed that PFOS severely affected locomotion and brood size, but these defects were rectified in the progeny after a few generations. Furthermore, PFOS also affected lifespan and chemotaxis plasticity.
Article
Chemistry, Physical
Yuki Nojima, Takafumi Shimoaka, Takeshi Hasegawa, Taka-aki Ishibashi
Summary: In this study, the molecular orientation of MA derivative monolayers at the air/water interface was investigated using HD-VSFG spectroscopy. The results showed that MA derivatives tend to adopt a standing orientation closer to perpendicular to the interface with longer R-f chain lengths and higher surface pressures.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Environmental Sciences
Chun-dan Gan, Zhi-wei Gan, Si-fan Cui, Rui-jun Fan, Yuan-zhou Fu, Mu-yi Peng, Jin-yan Yang
Summary: The study found that the levels of PFCs in the soil of an endemic fluorosis area were influenced by the use of fluoride-enriched fertilizers and agricultural activities, with long-chain PFCs being the dominant compounds. However, short-chain PFCAs were the main compounds in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agriculture, Multidisciplinary
Mengke Song, Longfei Jiang, Dayi Zhang, Zilin Huang, Shaorui Wang, Weiping Mei, Chunling Luo, Gan Zhang
Summary: The study found that the presence of different concentrations of copper (Cu) had varying effects on PFOS, with low concentrations causing an increase in PFOS concentration in roots and high concentrations damaging root cell membranes and increasing root permeability. It was also observed that Cu inhibition of carrier proteins could lead to the suppression of acropetal translocation of PFOS, and the presence of a protein-mediated uptake pathway was evidenced by enantiomer fraction (EF) results.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Environmental Sciences
Samuel Krebsbach, Jianzhou He, Sushil Adhikari, Yaniv Olshansky, Farshad Feyzbar, Leonard C. Davis, Tae-Sik Oh, Dengjun Wang
Summary: Biochar is a cost-effective solution for removing per- and polyfluoroalkyl substances (PFAS) from water, but the specific physicochemical properties of biochars that determine their PFAS removal remain unknown. In this study, 15 biochars were produced from five feedstocks at three pyrolysis temperatures to investigate their removal efficiency of perfluorooctane sulfonate (PFOS), a type of PFAS, from water. It was found that biochar pore diameter was the most critical factor for PFOS removal, but other factors such as pore diameter/pore volume ratio, specific surface area, pyrolysis temperature, hydrophobicity, and elemental composition also played roles. Biochars with small pore diameter, low nitrogen content, and high pyrolysis temperature showed enhanced PFOS sorption. These findings contribute to the understanding of using biochars with optimized properties to remove PFAS compounds from water.
Review
Environmental Sciences
Pingwei Wang, Dongge Liu, Shuqi Yan, Jiajing Cui, Yujun Liang, Shuping Ren
Summary: This study reviews the adverse effects of PFOS on liver tissue and function, providing a reference for further research on the toxicity of PFOS and liver injury caused by PFOS.
Article
Engineering, Environmental
Pengyang Li, Jiang Sun, Xiaocan Xie, Zhifang Li, Baoyong Huang, Guoguang Zhang, Jiuyi Li, Zhiyong Xiao
Summary: Limited understanding of stress response and tolerance to perfluorooctane sulfonate (PFOS) in plants exists at physiological, biochemical, and molecular levels. Lettuce exposed to PFOS showed accumulation of PFOS in leaves and roots, with different reactive oxygen species (ROS) production and defensive mechanisms observed between the two parts. Multiple defensive strategies in roots contribute to the high tolerance to PFOS.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Pingwei Wang, Dongge Liu, Shuqi Yan, Yujun Liang, Jiajing Cui, Li Guo, Shuping Ren, Peng Chen
Summary: This study demonstrates for the first time that PFOS induces ferroptosis in HK-2 cells. Additionally, the involvement of endoplasmic reticulum stress, apoptotic mechanism, and P53-mediated antioxidant mechanism in PFOS-induced cytotoxic damage are explored. These findings provide new insights into the toxicity of PFOS and its impact on kidney damage and mechanisms.
Article
Biotechnology & Applied Microbiology
Zahra Sobhani, Cheng Fang, Ravi Naidu, Mallavarapu Megharaj
Summary: The accumulation of microplastics in soil has become a serious global issue, impacting living organisms and the environment. Research shows that the presence of microplastics in soil significantly increases the bioaccumulation risk of perfluorooctane sulfonate and perfluorooctanoic acid in earthworms, affecting their reproduction negatively.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Zhuyu Sun, Chaojie Zhang, Jinchi Jiang, Jin Wen, Qi Zhou, Michael R. Hoffmann
Summary: A UV photoreductive system based on Fe(II)NTA is effective in decomposing PFOS at pH 8.0 under anoxic conditions, with degradation and defluorination efficiencies of around 60% and 29.5%, respectively. Laser flash photolysis and TDDFT calculations reveal a mechanism of UV-induced directional electron transfer from Fe(II)NTA to PFOS in a penta-coordinated metal-ligand complex.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Shu Yu, Wen-Ru Feng, Zi-Mian Liang, Xiao-Yun Zeng, Michael S. Bloom, Guo-Cheng Hu, Yang Zhou, Yan-Qiu Ou, Chu Chu, Qing-Qing Li, Yunjiang Yu, Xiao-Wen Zeng, Guang-Hui Dong
Summary: The study found that higher serum PFAS concentrations were associated with an increased risk of MetS, showing a significant dose-response trend, particularly impacting women.
ENVIRONMENTAL POLLUTION
(2021)
Review
Environmental Sciences
Jobriell C. Baluyot, Emmanuel Marc Reyes, Michael C. Velarde
Summary: The contamination of PFAS in water resources in Asia has become a concern, particularly highlighting the need for measures to reduce the population's exposure to PFAS in this region.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Yingxue Liu, Xuji Zhou, Yiting Wu, Xiaomeng Yang, Yanting Wang, Shuai Li, Xiaoxia Bai, Daniel Schlenk, Weiping Liu
Summary: The blood-cerebrospinal fluid barrier (BCSFB) plays a crucial role in protecting neonates from PFASs, but PFASs are still present in neonatal cerebrospinal fluid (CSF) and serum. The concentrations of PFASs in neonatal CSF relative to paired serum levels were significantly higher than those in adults. This study provides valuable insights into neonatal PFAS exposure and the development of the BCSFB.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Environmental Sciences
Wei Zheng, Lei Hu, Zekai Chen, Jun Tang, Yuliang Pan, Wende Yan, Xiaoyong Chen, Yuanying Peng, Lijun Chen
Summary: Perfluorinated compounds (PFCs) are a class of new persistent organic pollutants widely found in the environment. This study examined the effects of two typical PFCs, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), on the composition and diversity of soil microorganisms and the availability of soil macronutrients in urban forest ecosystems. The results showed that PFOA and PFOS application significantly increased soil nitrate and ammonium content, while total phosphorus content remained unchanged. Total potassium content decreased in PFOA treatments but increased in PFOS and PFOA-PFOS combined treatments. The dominant bacterial phylum shifted from Chloroflexi to Acidobacteria with increasing PFCs concentrations. Fungal community composition did not change significantly in response to PFCs treatments. Soil bacterial richness decreased but diversity increased, while fungal richness and diversity generally decreased with increasing PFCs concentrations. Soil fungal community was found to be more sensitive to PFCs pollutants than bacterial communities. Structural equation modeling revealed that PFCs exposure indirectly affected the diversity and richness of soil bacteria and fungi by directly impacting nitrate and ammonium content. The concentration of PFCs pollutants played a primary role in determining the composition, richness, and diversity of forest soil microbial communities.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Jeffery A. Steevens, Rebecca Dorman, Eric Brunson, James Kunz, Erin L. Pulster, S. Rebekah Burket, Kevin M. Stroski, Jaylen L. Sims, Matt F. Simcik, Bryan W. Brooks
Summary: This study investigates the bioaccumulation of per- and polyfluoroalkyl substances (PFAS) in freshwater mussels and finds that they have relatively low bioaccumulation compared to other aquatic invertebrates and fish.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
P. E. Redondo-Hasselerharm, G. Gort, E. T. H. M. Peeters, A. A. Koelmans
Letter
Environmental Sciences
T. Gouin, D. Cunliffe, J. De France, J. Fawell, P. Jarvis, A. A. Koelmans, P. Marsden, E. E. Testai, M. Asami, R. Bevan, R. Carrier, J. Cotruvo, A. Eckhardt, C. N. Ong
ENVIRONMENT INTERNATIONAL
(2021)
Article
Engineering, Environmental
Nur Hazimah Mohamed Nor, Merel Kooi, Noel J. Diepens, Albert A. Koelmans
Summary: The study presents a probabilistic lifetime exposure model for microplastics that considers intake through various pathways, simulating concentrations in different parts of the body and validating against empirical data. Results indicate a small contribution of microplastics to overall chemical intake. Future research should focus on exploring the contributions of other food types to microplastic exposure.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Michael S. Bank, Peter W. Swarzenski, Carlos M. Duarte, Matthias C. Rillig, Albert A. Koelmans, Marc Metian, Stephanie Wright, Jennifer F. Provencher, Monica Sanden, Adrian Jordaan, Martin Wagner, Martin Thiel, Yong Sik Ok
Summary: The urgent need for an integrated, global monitoring system for plastic pollution to provide comprehensive, harmonized data for environmental, societal, and economic assessments is emphasized in this article. The proposed earth-system-level plastic observation system aims to collect and assess the scale and impacts of plastic pollution across various ecosystems, including air, land, water, and biota. It strives to integrate new information, identify pollution hotspots, and expand monitoring from marine environments to encompass all ecosystem types in order to support public policy and corporate contributions to relevant United Nations Sustainable Development Goals (SDGs).
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Chang-Gui Pan, Svenja M. Mintenig, Paula E. Redondo-Hasselerharm, Paula H. M. W. Neijenhuis, Ke-Fu Yu, Ying-Hui Wang, Albert A. Koelmans
Summary: This study found that the uptake of microplastics by benthic organisms is taxon-specific, but the size distributions are consistent across sediments and taxa. Additionally, the polymer composition of microplastics differed significantly between invertebrates and their host sediment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Merel Kooi, Sebastian Primpke, Svenja M. Mintenig, Claudia Lorenz, Gunnar Gerdts, Albert A. Koelmans
Summary: Understanding the multidimensionality of microplastics is essential for realistic assessment of risks they pose. The study captures characteristics of over 60,000 individual microplastic particles as continuous distributions, revealing differences in distribution patterns among particles from different aquatic compartments. This suggests potential sources, removal or fragmentation processes, as well as toxicologically relevant dose metrics.
Article
Environmental Sciences
Georgiana Amariei, Roberto Rosal, Francisca Fernandez-Pinas, Albert A. Koelmans
Summary: Ingestion of microplastics by aquatic organisms can have both harmful and beneficial effects, and the net effect of these two mechanisms can be quantified. This study found that organisms grew better when exposed to biofouled microplastics compared to pristine microplastics. These results contradict previous studies and suggest that the widely accepted notion of unambiguously adverse microplastic effects is not ecologically justifiable.
ENVIRONMENTAL POLLUTION
(2022)
Review
Nanoscience & Nanotechnology
Albert A. Koelmans, Paula E. Redondo-Hasselerharm, Nur Hazimah Mohamed Nor, Vera N. de Ruijter, Svenja M. Mintenig, Merel Kooi
Summary: This Review examines the properties of microplastic particles and discusses methods of assessing the risks they pose to humans and the environment. Microplastic particles are widespread in the environment and can be found in the air we breathe and the food we eat. The lack of a risk assessment framework that considers the multidimensionality of microplastic particles compared to natural particles is a key challenge. This article reviews current understanding of microplastic characteristics and effects and proposes a method for quantifying exposure and effect thresholds using probability density functions.
NATURE REVIEWS MATERIALS
(2022)
Article
Engineering, Environmental
Lise M. Alkema, Caspar J. Van Lissa, Merel Kooi, Albert A. Koelmans
Summary: Current methods of characterizing plastic debris have limitations. By using Gaussian mixture models, we can identify different subsets of plastic particles and improve the accuracy of risk assessment and modeling of plastic distribution in the ocean.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Engineering, Environmental
Elijah. J. Petersen, Ana C. Barrios, Theodore B. Henry, Monique E. Johnson, Albert A. Koelmans, Antonio R. Montoro Bustos, Joanna Matheson, Matthias Roesslein, Jian Zhao, Baoshan Xing
Summary: Accurate measurements are crucial for fully understanding the potential risks of nanoplastics and microplastics (NMPs) to the environment and human health. This paper comprehensively reviews and suggests a next generation of control experiments to identify measurement artifacts and biases that may occur during NMP toxicity experiments. Incorporating these control experiments can reduce false positive and false negative results and provide a more accurate assessment of the potential risks of NMPs to both ecology and human health.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Albert A. Koelmans, Paula E. Redondo-Hasselerharm, Nur Hazimah Mohamed Nor, Todd Gouin
Summary: The Laurentian Great Lakes are important and iconic ecosystems facing the problem of microplastic pollution, among other anthropogenic stressors. This study provides a comprehensive probabilistic risk assessment for these lakes, addressing the uncertainties and misalignments in the exposure and effect data for microplastics. The results show that although there is no lake-wide risk, there is a probability of risk from food dilution in certain parts of the lakes.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Margherita Barchiesi, Merel Kooi, Albert A. Koelmans
Summary: This study introduces a new model that does not require calibration and can be used to estimate the volume and surface area of microplastic mixtures, thereby increasing the accuracy of risk assessments.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Nur Hazimah Mohamed Nor, Zhiyue Niu, Marie Hennebelle, Albert A. Koelmans
Summary: Using an in vitro gut fluid digestive model, researchers assessed the effect of digestive processes on chemical exchange kinetics on microplastics. Results showed that the digestive processes can increase chemical concentration on microplastics by a factor of 10-20, thereby reducing overall chemical bioavailability. These findings are important for assessing the risks of microplastics to human health and biomagnification in aquatic food webs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Vera N. de Ruijter, Matthias Hof, Petranta Kotorou, Jesse van Leeuwen, Martine J. van den Heuvel-Greve, Ivo Roessink, Albert A. Koelmans
Summary: This study provides chronic dose-effect relationships and effect thresholds for benthic species exposed to environmentally relevant microplastics. Different species show varying effects and some species have effect thresholds lower than the concentrations found in the environment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
P. E. Redondo-Hasselerharm, G. Vink, D. M. Mitrano, A. A. Koelmans
Summary: This study investigated the uptake and chronic effects of palladium-doped nanoplastics on freshwater amphipods. While a positive linear relationship between NP uptake and sediment concentration was observed, no significant effects were found on survival or growth of the amphipods. A biodynamic model showed bioaccumulation occurring in two kinetic compartments with a trophic transfer factor in the gut of 0.031. Using metal-doped plastics may offer opportunities for precise quantification of NP accumulation and exposure in risk assessment studies.
ENVIRONMENTAL SCIENCE-NANO
(2021)
