Themed collection Recent Open Access Articles

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Open Access Perspective

To be or not to be degraded: in defense of persistence assessment of chemicals

Characterizing the degradation behavior of chemicals in the environment is a key component of chemical hazard and risk assessment.

Graphical abstract: To be or not to be degraded: in defense of persistence assessment of chemicals
From the themed collection: Recent Open Access Articles
Open Access Perspective

Unraveling biogeochemical complexity through better integration of experiments and modeling

A more ubiquitous use of process-based models will enhance the information gained from biogeochemical experimentation through both, a more rigorous interpretation of acquired data and the optimal design of future experiments.

Graphical abstract: Unraveling biogeochemical complexity through better integration of experiments and modeling
From the themed collection: Recent Open Access Articles
Open Access Perspective

The high persistence of PFAS is sufficient for their management as a chemical class

While per- and polyfluoroalkyl substances (PFAS) are a class of synthetic organic substances with diverse structures, properties, uses, bioaccumulation potentials and toxicities, nearly all PFAS are highly persistent.

Graphical abstract: The high persistence of PFAS is sufficient for their management as a chemical class
From the themed collection: Recent Open Access Articles
Open Access Perspective

Perspectives of genetically engineered microbes for groundwater bioremediation

Bacteria degrading 1,2,3-trichloropropane were constructed by genetic engineering and may be applicable for groundwater bioremediation, following the example of 1,2-dichloroethane.

Graphical abstract: Perspectives of genetically engineered microbes for groundwater bioremediation
From the themed collection: Recent Open Access Articles
Open Access Perspective

Connecting environmental exposure and neurodegeneration using cheminformatics and high resolution mass spectrometry: potential and challenges

A multi-disciplinary perspective on connecting chemistry, exposure and medical information to “neurotoxicity” for mass spectrometry-based environmental assessment, including multiple interactive resources for readers to use and explore.

Graphical abstract: Connecting environmental exposure and neurodegeneration using cheminformatics and high resolution mass spectrometry: potential and challenges
From the themed collection: Recent Open Access Articles
Open Access Perspective

Why is high persistence alone a major cause of concern?

High persistence has important implications for chemicals regulation and management.

Graphical abstract: Why is high persistence alone a major cause of concern?
From the themed collection: Recent Open Access Articles
Open Access Perspective

Can the Stockholm convention address the spectrum of chemicals currently under regulatory scrutiny? Advocating a more prominent role for modeling in POP screening assessment

Applying POP screening to a large chemical domain requires less reliance on individual criteria and more on integrated assessment with models.

Graphical abstract: Can the Stockholm convention address the spectrum of chemicals currently under regulatory scrutiny? Advocating a more prominent role for modeling in POP screening assessment
From the themed collection: Recent Open Access Articles
Open Access Tutorial Review

Environmental significance of trace elements in the Athabasca Bituminous Sands: facts and misconceptions

The distribution of trace elements (TEs) in the bituminous sands is dichotomous: V, Ni, Mo, Se and Re are found predominantly in the bitumen fraction, and all other TEs in the mineral fraction.

Graphical abstract: Environmental significance of trace elements in the Athabasca Bituminous Sands: facts and misconceptions
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Red tides in the Galician rías: historical overview, ecological impact, and future monitoring strategies

The Galician rías (NW Iberia, Spain) are responsible for most of the national shellfish production. This is the first review of red tides in that area including an historical overview, social challenges and proposals for improving their monitoring.

Graphical abstract: Red tides in the Galician rías: historical overview, ecological impact, and future monitoring strategies
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Analytical methodologies for oxidized organic compounds in the atmosphere

Recent findings on oxidized organic compounds in the atmosphere and analytical methodologies for their detection and quantification.

Graphical abstract: Analytical methodologies for oxidized organic compounds in the atmosphere
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Lithium-ion battery recycling: a source of per- and polyfluoroalkyl substances (PFAS) to the environment?

PFAS are widely used in lithium-ion batteries, which may be problematic for the rapidly growing battery recycling industry.

Graphical abstract: Lithium-ion battery recycling: a source of per- and polyfluoroalkyl substances (PFAS) to the environment?
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Assessing and managing environmental hazards of polymers: historical development, science advances and policy options

Approaches to regulatory assessment and management of polymers are reviewed and opportunities for improvements are highlighted based on a critical appraisal of current science on their environmental fate and effects.

Graphical abstract: Assessing and managing environmental hazards of polymers: historical development, science advances and policy options
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Influences of climate change on long-term time series of persistent organic pollutants (POPs) in Arctic and Antarctic biota

Time series of contaminants in the Arctic are an important instrument to detect emerging issues and to monitor the effectiveness of chemicals regulation. Climate change can affect the link between primary emissions and concentrations in Arctic wildlife.

Graphical abstract: Influences of climate change on long-term time series of persistent organic pollutants (POPs) in Arctic and Antarctic biota
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Climate change influence on the levels and trends of persistent organic pollutants (POPs) and chemicals of emerging Arctic concern (CEACs) in the Arctic physical environment – a review

Direct and indirect effects of climate change influence contaminant sources, transport, re-distribution and circulation in the physical environment of the Arctic. Linkages of such observations to Arctic ecosystem exposure and effects are needed.

Graphical abstract: Climate change influence on the levels and trends of persistent organic pollutants (POPs) and chemicals of emerging Arctic concern (CEACs) in the Arctic physical environment – a review
From the themed collection: Recent Open Access Articles
Open Access Critical Review

The influence of global climate change on accumulation and toxicity of persistent organic pollutants and chemicals of emerging concern in Arctic food webs

Global climate change-driven shifts in physical and ecological processes may alter POPs concentrations in Arctic food webs.

Graphical abstract: The influence of global climate change on accumulation and toxicity of persistent organic pollutants and chemicals of emerging concern in Arctic food webs
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Influence of climate change on persistent organic pollutants and chemicals of emerging concern in the Arctic: state of knowledge and recommendations for future research

Future climate change in the Arctic will lead to loss of ice, snow and permafrost, increasing human activity and development, and changes in wind and ocean circulation patterns, that could alter the pathways, distribution and fate of contaminants.

Graphical abstract: Influence of climate change on persistent organic pollutants and chemicals of emerging concern in the Arctic: state of knowledge and recommendations for future research
From the themed collection: Recent Open Access Articles
Open Access Critical Review

A review of simulation experiment techniques used to analyze wildfire effects on water quality and supply

This review covers 40 laboratory- and plot-scale wildfire and rainfall simulation experiments which focus on wildfire hydrologic and water quality effects, guiding future researchers in the optimal design of their own simulation experiments.

Graphical abstract: A review of simulation experiment techniques used to analyze wildfire effects on water quality and supply
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Critical review of antibiotic resistance genes in the atmosphere

Our critical review compares ARG profiles in the atmosphere across different locations and discusses characterization methods, atmospheric transport, and future research questions.

Graphical abstract: Critical review of antibiotic resistance genes in the atmosphere
From the themed collection: Recent Open Access Articles
Open Access Critical Review

A review of microplastic fibres: generation, transport, and vectors for metal(loid)s in terrestrial environments

Synthetic fibre release is an important source of microplastics to agricultural soils, through the application of sewage sludge. Microplastics are potential vectors for the transport of sorbed metal(loid)s from wastewater to soils and organisms.

Graphical abstract: A review of microplastic fibres: generation, transport, and vectors for metal(loid)s in terrestrial environments
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Occurrence, human exposure, and risk of microplastics in the indoor environment

Pathways of human exposure to MPs and associated risks.

Graphical abstract: Occurrence, human exposure, and risk of microplastics in the indoor environment
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Review of ecotoxicological studies of widely used polystyrene nanoparticles

With polystyrene nanoparticles being widely used in various applications, there is a great need for deeper knowledge on the safety, fate and biological effects of these particles on both individual living organisms and the whole ecosystems.

Graphical abstract: Review of ecotoxicological studies of widely used polystyrene nanoparticles
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Battling the known unknowns: a synoptic review of aquatic plastics research from Australia, the United Kingdom and China

A synoptic review of aquatic plastics research from Australia, the United Kingdom and China is presented, highlighting (a) key research and management challenges, and (b) a need to converge on standardised methods and bioindicator species to make global comparisons more reliable.

Graphical abstract: Battling the known unknowns: a synoptic review of aquatic plastics research from Australia, the United Kingdom and China
From the themed collection: Recent Open Access Articles
Open Access Critical Review

Finding essentiality feasible: common questions and misinterpretations concerning the “essential-use” concept

The essential-use concept is a tool that can guide the phase-out of per- and polyfluoroalkyl substances (PFAS) and potentially other harmful substances of concern.

Graphical abstract: Finding essentiality feasible: common questions and misinterpretations concerning the “essential-use” concept
From the themed collection: Recent Open Access Articles
Open Access Critical Review

The fate of plastic in the ocean environment – a minireview

The fate of plastic in the ocean is influenced by physical, chemical and biological stressors. These cause fragemntation and the formation of micro and nanoplastics but also degradation of plastics.

Graphical abstract: The fate of plastic in the ocean environment – a minireview
From the themed collection: Recent Open Access Articles
Open Access Communication

Can determination of extractable organofluorine (EOF) be standardized? First interlaboratory comparisons of EOF and fluorine mass balance in sludge and water matrices

The first step towards the urgently needed standardization of EOF methods for PFAS-total assessment is presented in this interlaboratory study.

Graphical abstract: Can determination of extractable organofluorine (EOF) be standardized? First interlaboratory comparisons of EOF and fluorine mass balance in sludge and water matrices
From the themed collection: Recent Open Access Articles
Open Access Paper

Isotopes and otolith chemistry provide insight into the biogeochemical history of mercury in southern flounder across a salinity gradient

Methylmercury (MeHg) continues to pose a significant global health risk to wildlife and humans through fish consumption.

Graphical abstract: Isotopes and otolith chemistry provide insight into the biogeochemical history of mercury in southern flounder across a salinity gradient
From the themed collection: Recent Open Access Articles
Open Access Paper

Does green mean clean? Volatile organic emissions from regular versus green cleaning products

Cleaning products emit a range of volatile organic compounds (VOCs), including some which are hazardous or can undergo chemical transformations to generate harmful secondary pollutants.

Graphical abstract: Does green mean clean? Volatile organic emissions from regular versus green cleaning products
From the themed collection: Recent Open Access Articles
Open Access Paper

Adsorption of copper by naturally and artificially aged polystyrene microplastics and subsequent release in simulated gastrointestinal fluid

Microplastics, especially aged microplastics can become vectors of metals from environment to organisms with potential negative effects on food chain.

Graphical abstract: Adsorption of copper by naturally and artificially aged polystyrene microplastics and subsequent release in simulated gastrointestinal fluid
From the themed collection: Recent Open Access Articles
Open Access Paper

In silico approaches for the prediction of the breakthrough of organic contaminants in wastewater treatment plants

Quantitative structure–property relationships (QSPRs) can be used for the prediction of breakthrough of chemicals from wastewater treatment plants. These QSPRs are simple, interpretable, and checked both for overfitting and chance relationships.

Graphical abstract: In silico approaches for the prediction of the breakthrough of organic contaminants in wastewater treatment plants
From the themed collection: Recent Open Access Articles
Open Access Paper

Characterization and dermal bioaccessibility of residual- and listed PFAS ingredients in cosmetic products

Estimation of dermal bioaccessibility and characterization of listed-ingredient and residual per- and polyfluoroalkyl substances (PFAS) in cosmetic products.

Graphical abstract: Characterization and dermal bioaccessibility of residual- and listed PFAS ingredients in cosmetic products
Open Access Paper

Applying a modified systematic review and integrated assessment framework (SYRINA) – a case study on triphenyl phosphate

This work presents a case study in applying a systematic review framework (SYRINA) to the identification of chemicals as endocrine disruptors.

Graphical abstract: Applying a modified systematic review and integrated assessment framework (SYRINA) – a case study on triphenyl phosphate
From the themed collection: Recent Open Access Articles
Open Access Paper

Emission inventory of PFASs and other fluorinated organic substances for the fluoropolymer production industry in Europe

This study assesses the environmental impact of the fluoropolymer industry in Europe by making an inventory of their emissions of PFASs and other fluorinated organic substances.

Graphical abstract: Emission inventory of PFASs and other fluorinated organic substances for the fluoropolymer production industry in Europe
Open Access Paper

Contrasted redox-dependent structural control on Fe isotope fractionation during its adsorption onto and assimilation by heterotrophic soil bacteria

Despite the importance of structural control on metal stable isotope fractionation in inorganic and abiotic systems, the link between metal structural changes and related isotopic fractionation during reactions with organic surfaces and live cells remains poorly established.

Graphical abstract: Contrasted redox-dependent structural control on Fe isotope fractionation during its adsorption onto and assimilation by heterotrophic soil bacteria
From the themed collection: Recent Open Access Articles
Open Access Paper

Identification and quantification of fluorinated polymers in consumer products by combustion ion chromatography and pyrolysis-gas chromatography-mass spectrometry

Using the combination of total analysis and pyrolysis-gas chromatography-mass spectrometry to identify fluoropolymers in a broad range of consumer products.

Graphical abstract: Identification and quantification of fluorinated polymers in consumer products by combustion ion chromatography and pyrolysis-gas chromatography-mass spectrometry
Open Access Paper

Use of remote sensing to assess vegetative stress as a proxy for soil contamination

We demonstrate the potential of deploying a UAV with MSI camera to contribute useful diagnostics on potential sub-surface contamination from an operational oil reprocessing site and report the impact on the environment after 50 years of operation.

Graphical abstract: Use of remote sensing to assess vegetative stress as a proxy for soil contamination
From the themed collection: Recent Open Access Articles
Open Access Paper

Physical removal of PAXHs from highly contaminated soil by density differentiation: studying the effectiveness on the molecular level

Separation of a large amount of PAH contamination from soil by density differentiation.

Graphical abstract: Physical removal of PAXHs from highly contaminated soil by density differentiation: studying the effectiveness on the molecular level
From the themed collection: Recent Open Access Articles
Open Access Paper

Adding open spectral data to MassBank and PubChem using open source tools to support non-targeted exposomics of mixtures

Adding mass spectra from complex mixtures of chemicals relevant for exposomics to open spectral libraries such as MassBank and chemical databases like PubChem empowers identification efforts for non-target high resolution mass spectrometry workflows.

Graphical abstract: Adding open spectral data to MassBank and PubChem using open source tools to support non-targeted exposomics of mixtures
Open Access Paper

Mixture effect assessment applying in vitro bioassays to in-tissue silicone extracts of traditional foods prepared from beluga whale blubber

Mixtures extracted from beluga traditional food preparations activated oxidative stress response and the aryl hydrocarbon receptor but did not show any hormone-like effects.

Graphical abstract: Mixture effect assessment applying in vitro bioassays to in-tissue silicone extracts of traditional foods prepared from beluga whale blubber
Open Access Paper

Characterizing the marine mammal exposome by iceberg modeling, linking chemical analysis and in vitro bioassays

The analysis of mixtures of environmental contaminants from marine mammal organs revealed distinct distribution patterns for single compounds. The combination of chemical analysis and bioassays can comprehensively characterize the mixture exposome.

Graphical abstract: Characterizing the marine mammal exposome by iceberg modeling, linking chemical analysis and in vitro bioassays
From the themed collection: Recent Open Access Articles
Open Access Paper

Including the bioconcentration of pesticide metabolites in plant uptake modeling

By integrating the uptake kinetics of pesticide metabolites into plant uptake models, we highlight the importance of considering the bioconcentration of metabolites when assessing risks to human health.

Graphical abstract: Including the bioconcentration of pesticide metabolites in plant uptake modeling
From the themed collection: Recent Open Access Articles
Open Access Paper

A measurement and modelling investigation of the indoor air chemistry following cooking activities

Volatile organic compounds (VOCs) emitted during cooking affect indoor air quality. Here, experiments and simulations were carried out to determine VOC emission rates and the factors driving the formation of harmful products via secondary chemistry.

Graphical abstract: A measurement and modelling investigation of the indoor air chemistry following cooking activities
From the themed collection: Recent Open Access Articles
Open Access Paper

Characterizing metals in particulate pollution in communities at the fenceline of heavy industry: combining mobile monitoring and size-resolved filter measurements

This study investigates metal/metalloid concentrations and emission sources in fenceline communities of a heavy industry area using advanced online and offline mass spectrometry techniques.

Graphical abstract: Characterizing metals in particulate pollution in communities at the fenceline of heavy industry: combining mobile monitoring and size-resolved filter measurements
From the themed collection: Recent Open Access Articles
Open Access Paper

Per- and polyfluoroalkyl substances (PFAS) in white-tailed sea eagle eggs from Sweden: temporal trends (1969–2021), spatial variations, fluorine mass balance, and suspect screening

Identification of novel PFAS, updating spatiotemporal trends and providing a framework for understanding white-tailed sea eagle PFAS exposure in Sweden.

Graphical abstract: Per- and polyfluoroalkyl substances (PFAS) in white-tailed sea eagle eggs from Sweden: temporal trends (1969–2021), spatial variations, fluorine mass balance, and suspect screening
From the themed collection: Recent Open Access Articles
Open Access Paper

Combining predictive and analytical methods to elucidate pharmaceutical biotransformation in activated sludge

EAWAG-PPS and enviPath are valuable tools to predict transformation products and elucidate biotransformation pathways of active pharmaceutical ingredients in activated sludge.

Graphical abstract: Combining predictive and analytical methods to elucidate pharmaceutical biotransformation in activated sludge
From the themed collection: Recent Open Access Articles
Open Access Paper

Determination of the distribution of rare earth elements La and Gd in Daphnia magna via micro and nano-SXRF imaging

While our awareness of the toxicity of rare earth elements to aquatic organisms increases, our understanding of their direct interaction and accumulation remains limited.

Graphical abstract: Determination of the distribution of rare earth elements La and Gd in Daphnia magna via micro and nano-SXRF imaging
From the themed collection: Recent Open Access Articles
Open Access Paper

A framework for understanding the bioconcentration of surfactants in fish

Bioconcentration of surfactants is described using chemical space plots of kU, kT and BCF as a function of the membrane/water distribution coefficient and fraction of neutral species in water.

Graphical abstract: A framework for understanding the bioconcentration of surfactants in fish
From the themed collection: Recent Open Access Articles
Open Access Paper

Taking a look at the surface: μ-XRF mapping and fluorine K-edge μ-XANES spectroscopy of organofluorinated compounds in environmental samples and consumer products

An X-ray based surface analytical method allows for an unprecedented perspective on a known substance class and can contribute to localization and comprehension of fluorinated pollutant distribution in PFAS-containing matrices.

Graphical abstract: Taking a look at the surface: μ-XRF mapping and fluorine K-edge μ-XANES spectroscopy of organofluorinated compounds in environmental samples and consumer products
From the themed collection: Recent Open Access Articles
Open Access Paper

Combining the targeted and untargeted screening of environmental contaminants reveals associations between PFAS exposure and vitamin D metabolism in human plasma

We have developed, validated, and applied a method for the targeted and untargeted screening of environmental contaminants in human plasma using liquid chromatography high-resolution mass spectrometry (LC-HRMS).

Graphical abstract: Combining the targeted and untargeted screening of environmental contaminants reveals associations between PFAS exposure and vitamin D metabolism in human plasma
From the themed collection: Recent Open Access Articles
Open Access Paper

Ferrihydrite coating reduces microplastic induced soil water repellency

Addition of microplastics (MP) to soil has the potential to increase soil water repellency. Absorption of soil abundant substances on MP surfaces has the potential to overcome MP inherent hydrophobicity.

Graphical abstract: Ferrihydrite coating reduces microplastic induced soil water repellency
From the themed collection: Recent Open Access Articles
Open Access Paper

Managing PMT/vPvM substances in consumer products through the concepts of essential-use and functional substitution: a case-study for cosmetics

Measures are needed to protect water sources from substances that are mobile, persistent and toxic (PMT) or very persistent and very mobile (vPvM).

Graphical abstract: Managing PMT/vPvM substances in consumer products through the concepts of essential-use and functional substitution: a case-study for cosmetics
From the themed collection: Recent Open Access Articles
Open Access Paper

Partitioning into phosphatidylcholine–cholesterol membranes: liposome measurements, coarse-grained simulations, and implications for bioaccumulation

Liposome measurements and coarse-grained simulations are used to assess the cholesterol dependence of membrane-water partitioning for small molecules and the implications for bioaccumulation.

Graphical abstract: Partitioning into phosphatidylcholine–cholesterol membranes: liposome measurements, coarse-grained simulations, and implications for bioaccumulation
From the themed collection: Recent Open Access Articles
Open Access Paper

A field-validated equilibrium passive sampler for the monitoring of per- and polyfluoroalkyl substances (PFAS) in sediment pore water and surface water

A simple equilibrium passive sampler, consisting of water in an inert container capped with a rate-limiting barrier, for the monitoring of PFAS in sediment pore water and surface water was developed and tested through a series of laboratory and field experiments.

Graphical abstract: A field-validated equilibrium passive sampler for the monitoring of per- and polyfluoroalkyl substances (PFAS) in sediment pore water and surface water
From the themed collection: Recent Open Access Articles
Open Access Paper

Widespread presence of chlorinated paraffins in consumer products

Prohibited short-chain chlorinated paraffins were widely detected in indoor consumer products.

Graphical abstract: Widespread presence of chlorinated paraffins in consumer products
From the themed collection: Recent Open Access Articles
Open Access Paper

Hydrogen peroxide emissions from surface cleaning in a single-family residence

High levels of reactive chemicals may be emitted to the indoor air during household surface cleaning, leading to poorer air quality and potential health hazards.

Graphical abstract: Hydrogen peroxide emissions from surface cleaning in a single-family residence
From the themed collection: Recent Open Access Articles
Open Access Paper

A rapid micro chamber method to measure SVOC emission and transport model parameters

A rapid micro chamber method is used to measure emission model parameters of plasticizers, compared to a traditional chamber method and then applied in an exposure assessment with the DustEx webtool.

Graphical abstract: A rapid micro chamber method to measure SVOC emission and transport model parameters
From the themed collection: Recent Open Access Articles
Open Access Paper

Electron exchange capacity of pyrogenic dissolved organic matter (pyDOM): complementarity of square-wave voltammetry in DMSO and mediated chronoamperometry in water

Comparison of new (SWV) and established (MCA) electrochemical methods for characterization of redox activity of pyrogenic dissolved organic matter and natural organic matter.

Graphical abstract: Electron exchange capacity of pyrogenic dissolved organic matter (pyDOM): complementarity of square-wave voltammetry in DMSO and mediated chronoamperometry in water
From the themed collection: Recent Open Access Articles
Open Access Paper

The impact of plug-in fragrance diffusers on residential indoor VOC concentrations

The effect of adding a plug-in air freshener into 60 houses was hard to detect due to pre-existing VOCs from other sources; in homes with low ventilation rates however small increases in monoterpenes were seen, consistent with emission rates.

Graphical abstract: The impact of plug-in fragrance diffusers on residential indoor VOC concentrations
From the themed collection: Recent Open Access Articles
Open Access Paper

A multi-pathway exposure assessment for polycyclic aromatic hydrocarbons among residents in the Athabasca oil sands region, Canada

The dietary intake of PAHs with traditional food, estimated with a mechanistic food chain bioaccumulation model, is compared with the exposure arising from ingesting market food and smoking cigarettes.

Graphical abstract: A multi-pathway exposure assessment for polycyclic aromatic hydrocarbons among residents in the Athabasca oil sands region, Canada
From the themed collection: Recent Open Access Articles
Open Access Paper

Arsenic in Lake Geneva (Switzerland, France): long term monitoring, and redox and methylation speciation in an As unpolluted, oligo-mesotrophic lake

The formation and dynamic partitioning of As species in the water column of a large oligo-mesotrophic lake is driven by biological processes.

Graphical abstract: Arsenic in Lake Geneva (Switzerland, France): long term monitoring, and redox and methylation speciation in an As unpolluted, oligo-mesotrophic lake
From the themed collection: Recent Open Access Articles
Open Access Paper

Seasonal and latitudinal variability in the atmospheric concentrations of cyclic volatile methyl siloxanes in the Northern Hemisphere

The spatial and temporal patterns in the concentrations of D4, D5 and D6 in the atmosphere measured with passive samplers along a European and a Canadian transect are largely consistent with the current understanding of their atmospheric fate.

Graphical abstract: Seasonal and latitudinal variability in the atmospheric concentrations of cyclic volatile methyl siloxanes in the Northern Hemisphere
From the themed collection: Recent Open Access Articles
Open Access Paper

Using membrane–water partition coefficients in a critical membrane burden approach to aid the identification of neutral and ionizable chemicals that induce acute toxicity below narcosis levels

The risk assessment of thousands of chemicals used in our society benefits from adequate grouping of chemicals based on the mode and mechanism of toxic action (MoA).

Graphical abstract: Using membrane–water partition coefficients in a critical membrane burden approach to aid the identification of neutral and ionizable chemicals that induce acute toxicity below narcosis levels
From the themed collection: Recent Open Access Articles
Open Access Paper

Alkyl-phenanthrenes in early life stage fish: differential toxicity in Atlantic haddock (Melanogrammus aeglefinus) embryos

Comparative developmental toxicity at the limit of solubility appears unrelated to the position of alkyl substitution. Toxic effects are like crude oil exposures, however much higher doses of the individual compounds are needed.

Graphical abstract: Alkyl-phenanthrenes in early life stage fish: differential toxicity in Atlantic haddock (Melanogrammus aeglefinus) embryos
From the themed collection: Recent Open Access Articles
Open Access Paper

Analysis of micro- and nanoscale heterogeneities within environmentally relevant thin films containing biological components, oxyanions and minerals using AFM-PTIR spectroscopy

Minerals in groundwater interact with various chemical and biological species including organic matter, proteins, and prevalent oxyanions, resulting in surface coatings and thin films of these different components.

Graphical abstract: Analysis of micro- and nanoscale heterogeneities within environmentally relevant thin films containing biological components, oxyanions and minerals using AFM-PTIR spectroscopy
From the themed collection: Recent Open Access Articles
Open Access Paper

Influence of water exchange rates on toxicity and bioaccumulation of hydrophobic organic chemicals in sediment toxicity tests

Water exchange conditions significantly affected the overlying water concentrations, but did not affect the pore water concentrations, survival, and bioaccumulation in the freshwater amphipod.

Graphical abstract: Influence of water exchange rates on toxicity and bioaccumulation of hydrophobic organic chemicals in sediment toxicity tests
From the themed collection: Recent Open Access Articles
Open Access Paper

Photochemical weathering of polyurethane microplastics produced complex and dynamic mixtures of dissolved organic chemicals

Sunlight exposure can naturally mitigate microplastics pollution in the surface ocean, however it results in emissions of dissolved organic carbon (DOC) whose characteristics and fate remain largely unknown.

Graphical abstract: Photochemical weathering of polyurethane microplastics produced complex and dynamic mixtures of dissolved organic chemicals
Open Access Paper

A submersible probe with in-line calibration and a symmetrical reference element for continuous direct nitrate concentration measurements

A new autonomous, pre-programmable nitrate ion-selective submersible probe with a drift correction protocol, in-line calibration and a new reference system gives direct access to concentration and not activity.

Graphical abstract: A submersible probe with in-line calibration and a symmetrical reference element for continuous direct nitrate concentration measurements
From the themed collection: Recent Open Access Articles
Open Access Paper

Molecular speciation controls arsenic and lead bioaccessibility in fugitive dusts from sulfidic mine tailings

Mine tailings are sources of metal(loid)-rich particulate matter (PM), particularly in dry climates. Inhaled or ingested PM bioavailability and toxicity depends on the solid phase speciation and the rate of PM dissolution.

Graphical abstract: Molecular speciation controls arsenic and lead bioaccessibility in fugitive dusts from sulfidic mine tailings
From the themed collection: Recent Open Access Articles
Open Access Paper

Near-source hypochlorous acid emissions from indoor bleach cleaning

Cleaning surfaces with sodium hypochlorite (NaOCl) bleach can lead to high levels of gaseous chlorine (Cl2) and hypochlorous acid (HOCl); these have high oxidative capacities and are linked to respiratory issues.

Graphical abstract: Near-source hypochlorous acid emissions from indoor bleach cleaning
From the themed collection: Recent Open Access Articles
Open Access Paper

Quantum chemical calculation of the vapor pressure of volatile and semi volatile organic compounds

Quantum chemistry based calculation methods enable the reliable prediction of the vapor pressure of molecules with rather general structure and are particularly valuable for non-rigid substances with low volatilities.

Graphical abstract: Quantum chemical calculation of the vapor pressure of volatile and semi volatile organic compounds
From the themed collection: Recent Open Access Articles
Open Access Paper

The dependence of soot particle ice nucleation ability on its volatile content

The removal of volatile content enhances the ice nucleation of soot particles by increasing the particle porosity and surface wettability.

Graphical abstract: The dependence of soot particle ice nucleation ability on its volatile content
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Please see below for recent Open Access papers published in Environmental Science: Processes & Impacts.

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