The paper gives the results of studying the quantity of petroleum hydrocarbons in the Moscow soil, as well as the latter's hygienic evaluation by the changes in acidity (pH) and redox potential and by the sanitary state (the levels of Escherichia coli and viable helminthic eggs). The study has ascertained that the petroleum-polluted soils show changes in medium pH and redox conditions that determine the biological activity of the substances and the trend in their disintegration processes and revealed a relationship of thy sanitary state of Moscow soils to their level of petroleum hydrocarbons.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Assessing the Risks of Potential Pathogens and Antibiotic Resistance Genes Among Heterogeneous Habitats in a Temperate Estuary Wetland: a Meta-analysis.
Microb Ecol
January 2025
Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Sciences, Liaoning Normal University, Dalian, 116029, China.
Temperate estuary wetlands act as natural filters for microbiological contamination and have a profound impact on "One Health." However, knowledge of microbiological ecology security across the different habitats in temperate estuarine wetlands remains limited. This study employed meta-analysis to explore the characteristics of bacterial communities, potential pathogens, and antibiotic resistance genes (ARGs) across three heterogeneous habitats (water, soil, and sediment) within the Liaohe Estuary landscape.
View Article and Find Full Text PDFCharacterizing the Transient Emission of Particles and Gases from a Single Puff of Electronic Cigarette Smoke.
Chem Res Toxicol
January 2025
Department of Chemical, Environmental, and Materials Engineering, University of Miami, Miami, Florida 33146, United States.
This study employed high-time-resolution systems to examine the transient properties of aerosols and gases emitted from electronic cigarette (EC) puffs. Using a fast aerosol sizer, we measured particle size distributions (PSDs) across various EC brands (JUUL, VUSE, VOOPOO), revealing sizes ranging from 5 to 1000 nm at concentrations of 10 to 10 cm. Most aerosols were found to be in the ultrafine range (below 100 nm), with JUUL-, VUSE-, and VOOPOO-producing aerosols with geometric mean sizes of 19.
View Article and Find Full Text PDFMolecular Insights into the Adsorption of Deposit Control Additives from Hydrocarbon Fuels.
Langmuir
January 2025
Department of Mechanical Engineering, Imperial College London, South Kensington Campus, London SW7 2BX, United Kingdom.
Engine deposits can reduce performance and increase emissions, particularly for modern direct-injection fuel delivery systems. Surfactants known as deposit control additives (DCAs) adsorb and self-assemble on the surface of deposit precursors to keep them suspended in the fuel. Here, we show how molecular simulations can be used to virtually screen the ability of surfactants to bind to polyaromatic hydrocarbons, comprising a major class of carbonaceous deposits.
View Article and Find Full Text PDFPredictive model for the determination of the hydrotreated vegetable oil (HVO) content in HVO/fossil diesel blends using gas chromatography coupled to mass spectrometry and multivariate analysis.
Anal Methods
January 2025
Program in Chemical and Biochemical Process Engineering, School of Chemistry, Federal University of Rio de Janeiro, Cidade Universitária, Rio de Janeiro, CEP 21941-909, Brazil.
Low-carbon fuels, emitting less carbon than fossil fuels, are proposed to help in the transition to a sustainable, decarbonized transport sector. The new biofuels being studied and developed in this context include hydrotreated vegetable oils (HVO). Its chemical composition, which is the same as fossil diesel (primarily composed of linear chain hydrocarbons C12-C24), makes HVO (more homogeneous mixtures of paraffinic hydrocarbons C10-C20, containing no sulfur or aromatics) a fuel with slightly lower density than fossil diesel due to these characteristics.
View Article and Find Full Text PDFVolatile Organic Compounds Inside Homes Impacted by Smoke from the Marshall Fire.
ACS EST Air
January 2025
Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States.
Wildfires at the wildland-urban interface (WUI) have been increasing in frequency over recent decades due to increased human development and shifting climatic patterns. The work presented here focuses on the impacts of a WUI fire on indoor air using field measurements of volatile organic compounds (VOCs) by Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry (PTR-TOF-MS). We found a slow decrease in VOC mixing ratios over the course of roughly 5 weeks starting 10 days after the fire, and those levels decreased to ∼20% of the initial indoor value on average.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!