Insight into urban PM2.5 chemical composition and environmentally persistent free radicals attributed human lung epithelial cytotoxicity.
Sign Up to like & getrecommendations! Published in 2022 at "Ecotoxicology and environmental safety"
DOI: 10.1016/j.ecoenv.2022.113356
Abstract: Fine particulate matter (PM2.5) is detrimental to the human respiratory system. However, the toxicity of PM2.5 and its associated potentially harmful species, notably novel pollutants like environmentally persistent free radicals (EPFRs), remains unclear. Therefore, one-year… read more here.
Keywords: human lung; free radicals; persistent free; cytotoxicity ... See more keywords
Characteristics of environmentally persistent free radicals in PM2.5: Concentrations, species and sources in Xi'an, Northwestern China.
Sign Up to like & getrecommendations! Published in 2019 at "Environmental pollution"
DOI: 10.1016/j.envpol.2019.01.015
Abstract: Environmentally persistent free radicals (EPFRs) are a new class of environmental risk substances that can stably exist in atmospheric particles and pose a potential threat to human health. In this study, electron paramagnetic resonance (EPR)… read more here.
Keywords: free radicals; persistent free; epfrs pm2; environmentally persistent ... See more keywords
Environmentally persistent free radicals in biochar derived from Laminaria japonica grown in different habitats
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Analytical and Applied Pyrolysis"
DOI: 10.1016/j.jaap.2020.104941
Abstract: Abstract Biomass feedstock plays an important role in the formation of environmentally persistent free radicals (EPFRs) in biochars; however, no investigations have been done on the effects of different plant habitats on the formation of… read more here.
Keywords: persistent free; environmentally persistent; free radicals; laminaria japonica ... See more keywords
Comparative Studies of Environmentally Persistent Free Radicals (EPFRs) on Total Particulate Matter (TPM) Collected from Electronic and Tobacco Cigarettes.
Sign Up to like & getrecommendations! Published in 2020 at "Environmental science & technology"
DOI: 10.1021/acs.est.0c00351
Abstract: In the current study, electron paramagnetic resonance (EPR) spectroscopy was employed to measure environmentally persistent free radicals (EPFRs) in total particulate matter (TPM) of mainstream and sidestream TPM of conventional cigarette and TPM of e-cigarettes.… read more here.
Keywords: tobacco; tpm; free radicals; radicals epfrs ... See more keywords
The components and persistent free radicals in the volatiles during pyrolysis of lignocellulose biomass.
Sign Up to like & getrecommendations! Published in 2020 at "Environmental science & technology"
DOI: 10.1021/acs.est.0c03363
Abstract: Persistent free radicals (PFRs) may cause negative impacts to human health and the environment, due to the induced reactive oxygen species. We expect that PFRs could be generated in the condensable volatiles formed during lignocellulose… read more here.
Keywords: free radicals; biomass; persistent free; condensable volatiles ... See more keywords
In Vitro Assessment Reveals the Effects of Environmentally Persistent Free Radicals on the Toxicity of Photoaged Tire Wear Particles.
Sign Up to like & getrecommendations! Published in 2021 at "Environmental science & technology"
DOI: 10.1021/acs.est.1c05092
Abstract: Tire wear particles (TWP) have been identified as one of the major sources of microplastics (MPs), and few studies have focused on their environmental behaviors and impacts. However, a thorough characteristic and toxicity assessment associated… read more here.
Keywords: wear particles; persistent free; tire wear; toxicity ... See more keywords
Generation Mechanism of Persistent Free Radicals in Lignocellulose-Derived Biochar: Roles of Reducible Carbonyls.
Sign Up to like & getrecommendations! Published in 2022 at "Environmental science & technology"
DOI: 10.1021/acs.est.1c06997
Abstract: Persistent free radicals (PFRs) in biochar can influence biochar reactivity, promoting organic contaminant degradation or even causing certain toxic impacts. However, the PFR generation mechanism is not still well understood. An investigation of the relationship… read more here.
Keywords: persistent free; generation mechanism; pfr; free radicals ... See more keywords
Sulfur-Containing Persistent Free Radicals and Reactive Species on Photoaged Microplastics: Identification and the Formation Mechanism.
Sign Up to like & getrecommendations! Published in 2023 at "Environmental science & technology"
DOI: 10.1021/acs.est.3c01310
Abstract: The elemental composition may affect the persistent free radical (PFR) and reactive species (RS) formation associated with photoaging microplastics; however, a relevant study is still lacking. This study systematically investigated the formation, evolution, and types… read more here.
Keywords: persistent free; reactive species; sulfur; sulfur containing ... See more keywords
Biochar Reduced the Risks of Human Bacterial Pathogens in Soil via Disturbing Quorum Sensing Mediated by Persistent Free Radicals.
Sign Up to like & getrecommendations! Published in 2024 at "Environmental science & technology"
DOI: 10.1021/acs.est.4c07668
Abstract: Biochar has great potential in reducing the abundance of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) from soil. However, its efficiency in removing other biological pollutants, such as human bacterial pathogens (HBPs) and… read more here.
Keywords: bacterial pathogens; disturbing quorum; human bacterial; free radicals ... See more keywords
Environmentally Persistent Free Radicals in Biochar: Environmental Context and Future Research Needs.
Sign Up to like & getrecommendations! Published in 2025 at "Environmental science & technology"
DOI: 10.1021/acs.est.4c13603
Abstract: Environmentally persistent free radicals (EPFRs) are produced during biochar pyrolysis and, depending on biochar application, can be either detrimental or beneficial. High levels of EPFRs may interfere with cellular metabolism and be toxic, because EPFR-generated… read more here.
Keywords: epfr; environmentally persistent; environmental context; radicals biochar ... See more keywords
Environmentally Persistent Free Radicals on Black Carbon Induce Rapid Degradation of Phenolic Acids.
Sign Up to like & getrecommendations! Published in 2025 at "Environmental science & technology"
DOI: 10.1021/acs.est.5c00476
Abstract: Wildfires and postharvest crop residue burning release substantial amounts of black carbon (BC) into the atmosphere annually, posing significant environmental and public health challenges. Environmentally persistent free radicals (EPFRs) are abundant on BC surfaces, yet… read more here.
Keywords: environmentally persistent; free radicals; persistent free; phenolic acids ... See more keywords