Themed collection Atmospheric chemistry

55 items
Perspective

A perspective on iron (Fe) in the atmosphere: air quality, climate, and the ocean

We engage in research motivated by climate change and the impacts of pollution on air, water, and human health. The scientific community need to improve communication and knowledge exchange across disciplines to address pressing research questions holistically.

Graphical abstract: A perspective on iron (Fe) in the atmosphere: air quality, climate, and the ocean
From the themed collection: Atmospheric chemistry
Critical Review

PFAS on atmospheric aerosol particles: a review

PFAS are detected in particulate matter around the world.

Graphical abstract: PFAS on atmospheric aerosol particles: a review
From the themed collection: Atmospheric chemistry
Critical Review

Impact of global warming on regional cycling of mercury and persistent organic pollutants on the Tibetan Plateau: current progress and future prospects

Global warming profoundly affects not only mountainous and polar environments, but also the global and regional cycling of pollutants.

Graphical abstract: Impact of global warming on regional cycling of mercury and persistent organic pollutants on the Tibetan Plateau: current progress and future prospects
From the themed collection: Atmospheric chemistry
Critical Review

The oxidative potential of fresh and aged elemental carbon-containing airborne particles: a review

EC-containing airborne particles have diverse oxidative potentials dependent on their physical and chemical properties, which can be also changed by atmospheric aging processes.

Graphical abstract: The oxidative potential of fresh and aged elemental carbon-containing airborne particles: a review
From the themed collection: Atmospheric chemistry
Critical Review

Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies

This review summarizes in detail the current knowledge in the chemical compositions, formation mechanisms, and physicochemical properties of secondary organic aerosols formed from monocyclic aromatic hydrocarbons.

Graphical abstract: Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies
From the themed collection: Atmospheric chemistry
Open Access Paper

Oxidant concentrations and photochemistry in a vehicle cabin

Indoor oxidant concentrations in vehicles strongly depends on the ventilation rates and photochemistry within the vehicle.

Graphical abstract: Oxidant concentrations and photochemistry in a vehicle cabin
From the themed collection: Indoor Chemistry
Open Access Paper

Emerging investigator series: secondary organic aerosol formation from photooxidation of acyclic terpenes in an oxidation flow reactor

Organic aerosol formed from ocimene photooxidation has more oligomers compared to organic aerosol formed from other acyclic terpene precursors.

Graphical abstract: Emerging investigator series: secondary organic aerosol formation from photooxidation of acyclic terpenes in an oxidation flow reactor
From the themed collection: Recent Open Access Articles
Paper

Reactive oxygen species on indoor surfaces

Reactive oxygen species (ROS) are present on indoor surfaces and form dynamically on surfaces coated with lipid mixtures that simulate indoor surface coatings.

Graphical abstract: Reactive oxygen species on indoor surfaces
From the themed collection: Atmospheric chemistry
Paper

Ozone generation and chemistry from 222 nm germicidal ultraviolet light in a fragrant restroom

Devices using 222 nm germicidal ultraviolet light (GUV222) have been marketed to reduce virus transmission indoors. However, GUV222 generates ozone which can react with gases and surfaces to create undesirable air byproducts.

Graphical abstract: Ozone generation and chemistry from 222 nm germicidal ultraviolet light in a fragrant restroom
From the themed collection: Atmospheric chemistry
Paper

Measurement of the vertical distributions of atmospheric pollutants using an uncrewed aerial vehicle platform in Xi'an, China

PM and CO concentrations below 500 m increased substantially during haze. Influences of horizontal and vertical transport were observed on vertical profiles.

Graphical abstract: Measurement of the vertical distributions of atmospheric pollutants using an uncrewed aerial vehicle platform in Xi'an, China
From the themed collection: Atmospheric chemistry
Paper

Unrecognized volatile and semi-volatile organic compounds from brake wear

This study shows that volatile and semi-volatile organic gases are emitted during light and heavy braking. These emissions will remain as we transition to zero exhaust emission vehicles and must be included in air pollution and climate assessments.

Graphical abstract: Unrecognized volatile and semi-volatile organic compounds from brake wear
From the themed collection: Traffic non-exhaust substances
Paper

New insights into the mechanism and kinetics of the addition reaction of unsaturated Criegee intermediates to CF3COOH and tropospheric implications

When the unsaturated CIs at the C[double bond, length as m-dash]C-terminal vinyl electrophilic center react with the O[double bond, length as m-dash]C–OH moiety (TFA), a new adduct, TFAAAH, is formed, and it can act as a potential source of secondary organic aerosols (SOAs).

Graphical abstract: New insights into the mechanism and kinetics of the addition reaction of unsaturated Criegee intermediates to CF3COOH and tropospheric implications
From the themed collection: Atmospheric chemistry
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
Paper

Composition of indoor organic surface films in residences: simulating the influence of sources, partitioning, particle deposition, and air exchange

Monte Carlo simulations of long-term indoor organic surface film growth were done. Film composition was resolved by volatility, particle deposition or gas absorption formation mechanisms, and indoor source process.

Graphical abstract: Composition of indoor organic surface films in residences: simulating the influence of sources, partitioning, particle deposition, and air exchange
From the themed collection: Atmospheric chemistry
Paper

Wildfire plume ageing in the Photochemical Large Aerosol Chamber (PHOTO-LAC)

We establish laboratory-photochemical ageing in the 1800 m3 environmental chamber “PHOTO-LAC” to study the atmospheric processing of dense wildfire plumes.

Graphical abstract: Wildfire plume ageing in the Photochemical Large Aerosol Chamber (PHOTO-LAC)
From the themed collection: Atmospheric chemistry
Paper

Kinetics of hypochlorous acid reactions with organic and chloride-containing tropospheric aerosol

This study describes laboratory experiments on the reaction HOCl with chloride-containing aerosol and aerosol containing selected organic compounds with and without chloride.

Graphical abstract: Kinetics of hypochlorous acid reactions with organic and chloride-containing tropospheric aerosol
Paper

Wildfires in the western United States are mobilizing PM2.5-associated nutrients and may be contributing to downwind cyanobacteria blooms

Wildfire activity is increasing in the continental U.S. and can be linked to climate change effects and nutrient emissions, with potential effects on downwind ecosystems.

Graphical abstract: Wildfires in the western United States are mobilizing PM2.5-associated nutrients and may be contributing to downwind cyanobacteria blooms
Paper

The fate of organic peroxides indoors: quantifying humidity-dependent uptake on naturally soiled indoor window glass

The effect of humidity on organic hydroperoxide (ROOH) removal from air to real indoor surface films was investigated. A novel flow reactor for studying uptake kinetics of indoor pollutants on indoor materials is introduced.

Graphical abstract: The fate of organic peroxides indoors: quantifying humidity-dependent uptake on naturally soiled indoor window glass
Paper

Indoor and outdoor air quality impacts of cooking and cleaning emissions from a commercial kitchen

Online gas- and particle-phase measurements in a commercial kitchen reveal exposure risks and outdoor air impacts during cooking and cleaning.

Graphical abstract: Indoor and outdoor air quality impacts of cooking and cleaning emissions from a commercial kitchen
From the themed collection: Atmospheric chemistry
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

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

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
Paper

Emerging investigator series: an instrument to measure and speciate the total reactive nitrogen budget indoors: description and field measurements

A robust and quantitative instrument that measures total gas-phase reactive nitrogen (tNr) has been developed for indoor air quality surveys. It can focus on NOx, HONO, and NH3 levels indoors, from the complete tNr budget, on timescales of 5–20 min.

Graphical abstract: Emerging investigator series: an instrument to measure and speciate the total reactive nitrogen budget indoors: description and field measurements
From the themed collection: Emerging Investigator Series
Open Access Paper

Kinetics of the nitrate-mediated photooxidation of monocarboxylic acids in the aqueous phase

This work highlights how the pH of the atmospheric aqueous phase can influence the degradation of carboxylic acids during nitrate-mediated photooxidation.

Graphical abstract: Kinetics of the nitrate-mediated photooxidation of monocarboxylic acids in the aqueous phase
Paper

Gaseous and soil OCPs and PCBs along the Indus River, Pakistan: spatial patterns and air–soil gradients

Results of this study indicate the contribution of regional as well local sources towards long range atmospheric transport (LRAT) of persistent organic pollutants (POPs) to the colder areas of Pakistan, where these act as a secondary source of POPs.

Graphical abstract: Gaseous and soil OCPs and PCBs along the Indus River, Pakistan: spatial patterns and air–soil gradients
From the themed collection: Atmospheric chemistry
Open Access Paper

From the HOMEChem frying pan to the outdoor atmosphere: chemical composition, volatility distributions and fate of cooking aerosol

New measurements show that cooking aerosol released indoors can partition as it dilutes through a home and to the outdoor atmosphere, impacting both indoor and outdoor air quality.

Graphical abstract: From the HOMEChem frying pan to the outdoor atmosphere: chemical composition, volatility distributions and fate of cooking aerosol
From the themed collection: Atmospheric chemistry
Paper

Elevated levels of chloramines and chlorine detected near an indoor sports complex

Chlorinated cleaning products containing hypochlorous acid (HOCl) and hypochlorite ion (OCl) act as sources of toxic chloramines (NH2Cl, NHCl2, NCl3) and atmospheric oxidant precursors (i.e. Cl2) which impact air quality.

Graphical abstract: Elevated levels of chloramines and chlorine detected near an indoor sports complex
From the themed collection: Atmospheric chemistry
Paper

Exploring controls on perfluorocarboxylic acid (PFCA) gas–particle partitioning using a model with observational constraints

The atmospheric fate of perfluorocarboxylic acids (PFCAs) has attracted much attention in recent decades due to the role of the atmosphere in global transport of these persistent chemicals.

Graphical abstract: Exploring controls on perfluorocarboxylic acid (PFCA) gas–particle partitioning using a model with observational constraints
Paper

Aqueous processing of water-soluble organic compounds in the eastern United States during winter

The uptake of WSOCg from biomass burning into ALW results in compounds that remain in the particle phase upon drying.

Graphical abstract: Aqueous processing of water-soluble organic compounds in the eastern United States during winter
Paper

Hygroscopicity of nitrogen-containing organic carbon compounds: o-aminophenol and p-aminophenol

As nitrogen-containing organic carbon of atmospheric relevance, the water uptake of two phenolic compounds, o-aminophenol and p-aminophenol, is investigated under sub- and supersaturated conditions through the lens of aerosol-cloud interactions.

Graphical abstract: Hygroscopicity of nitrogen-containing organic carbon compounds: o-aminophenol and p-aminophenol
From the themed collection: Atmospheric chemistry
Paper

Iodine emission from the reactive uptake of ozone to simulated seawater

We suggest a re-evaluation of two reaction rate constants to be able to better model iodine emission from the ozonolysis of iodide in the presence of chloride.

Graphical abstract: Iodine emission from the reactive uptake of ozone to simulated seawater
Paper

Kinetics of oligomer-forming reactions involving the major functional groups present in atmospheric secondary organic aerosol particles

Measurements of the kinetics of accretion reactions involving organic compounds typical of those present in atmospheric aerosol particles demonstrate the potential importance of peroxyhemiacetal and ester formation in a single organic phase and in phase-separated organic/aqueous mixtures containing a sulfuric acid catalyst.

Graphical abstract: Kinetics of oligomer-forming reactions involving the major functional groups present in atmospheric secondary organic aerosol particles
Paper

Molecular investigation of the multi-phase photochemistry of Fe(III)–citrate in aqueous solution

The comprehensive reaction mechanism of FeIII–citrate multiphase photochemistry and formation of unexplored colloidal reaction products that contribute to terrestrial light-absorbing materials.

Graphical abstract: Molecular investigation of the multi-phase photochemistry of Fe(iii)–citrate in aqueous solution
From the themed collection: Atmospheric chemistry
Paper

pH affects the aqueous-phase nitrate-mediated photooxidation of phenolic compounds: implications for brown carbon formation and evolution

This work highlights how the pH of the atmospheric aqueous phase can influence the reactivities of phenolic compounds and brown carbon formation/evolution during nitrate-mediated photooxidation.

Graphical abstract: pH affects the aqueous-phase nitrate-mediated photooxidation of phenolic compounds: implications for brown carbon formation and evolution
From the themed collection: Atmospheric chemistry
Paper

Formation pathways of aldehydes from heated cooking oils

We studied the mechanisms of cooking oil decomposition that lead to emission of aldehydes, an important group of air pollutants, from food cooking.

Graphical abstract: Formation pathways of aldehydes from heated cooking oils
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
Paper

Legacy and emerging airborne per- and polyfluoroalkyl substances (PFAS) collected on PM2.5 filters in close proximity to a fluoropolymer manufacturing facility

Large fluoropolymer manufacturing plants are major sources of per- and polyfluoroalkyl substances (PFAS) to the environment; we measured legacy and emerging PFAS in air to provide insights into near-source PFAS profiles.

Graphical abstract: Legacy and emerging airborne per- and polyfluoroalkyl substances (PFAS) collected on PM2.5 filters in close proximity to a fluoropolymer manufacturing facility
Paper

Indoor partitioning and potential thirdhand exposure to carbonyl flavoring agents added in e-cigarettes and hookah tobacco

The residents are likely to experience harmful thirdhand exposure due to the indoor partitioning of flavoring agents added to the e-cigarettes and hookah tobacco.

Graphical abstract: Indoor partitioning and potential thirdhand exposure to carbonyl flavoring agents added in e-cigarettes and hookah tobacco
Paper

Air quality trends in rural India: analysis of NO2 pollution using satellite measurements

India is a country with more than 67% of its population (947 million) residing in rural areas and 33% in urban areas (472 million) as of 2020.

Graphical abstract: Air quality trends in rural India: analysis of NO2 pollution using satellite measurements
From the themed collection: Atmospheric chemistry
Paper

Direct measurement of the deposition of submicron soot particles on leaves of Platanus acerifolia tree

Submicron soot particles (<1.0 μm in aerodynamic diameter) are responsible for global warming and health burdens worldwide.

Graphical abstract: Direct measurement of the deposition of submicron soot particles on leaves of Platanus acerifolia tree
From the themed collection: Atmospheric chemistry
Paper

Partitioning of reactive oxygen species from indoor surfaces to indoor aerosols

Ozone chemistry taking place on indoor surfaces is predicted to increase inhalation exposure of reactive oxygen species in indoor aerosols.

Graphical abstract: Partitioning of reactive oxygen species from indoor surfaces to indoor aerosols
From the themed collection: Atmospheric chemistry
Paper

Emerging investigator series: ozone uptake by urban road dust and first evidence for chlorine activation during ozone uptake by agro-based anti-icer: implications for wintertime air quality in high-latitude urban environments

In this study, we report the heterogeneous chemistry of ozone with urban road dust and anti-icer. We present a novel pathway for chlorine activation during ozone uptake by anti-icer and discuss its potential air quality impacts in cold-climate urban regions.

Graphical abstract: Emerging investigator series: ozone uptake by urban road dust and first evidence for chlorine activation during ozone uptake by agro-based anti-icer: implications for wintertime air quality in high-latitude urban environments
From the themed collection: Emerging Investigator Series
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
From the themed collection: Recent Open Access Articles
Paper

Effect of calcium on enhanced carbon capture potential of coal fly ash zeolites. Part II: a study on the adsorption mechanisms

The conversion of coal fly ash to zeolites is a sustainable solution for its utilization. One important issue is to clarify the effect of coal fly ash composition on the carbon sequestration potential of the derived zeolites.

Graphical abstract: Effect of calcium on enhanced carbon capture potential of coal fly ash zeolites. Part II: a study on the adsorption mechanisms
From the themed collection: Atmospheric chemistry
Paper

A new theoretical investigation on ·OH initiated oxidation of acephate in the environment: mechanism, kinetics, and toxicity

The degradation of acephate by OH radicals in the environment.

Graphical abstract: A new theoretical investigation on ·OH initiated oxidation of acephate in the environment: mechanism, kinetics, and toxicity
From the themed collection: Atmospheric chemistry
Paper

Falling nickel concentrations in ambient air in South Wales – 50 years of progress

The effect on population exposure of falling nickel concentrations in air in the Swansea Valley over the last 50 years is assessed.

Graphical abstract: Falling nickel concentrations in ambient air in South Wales – 50 years of progress
From the themed collection: Atmospheric chemistry
Open Access Paper

Quantification and physical analysis of nanoparticle emissions from a marine engine using different fuels and a laboratory wet scrubber

A marine test-bed diesel engine was used to study how international fuel sulfur content (FSC) regulations and wet scrubbing can affect physical properties of submicron exhaust particles.

Graphical abstract: Quantification and physical analysis of nanoparticle emissions from a marine engine using different fuels and a laboratory wet scrubber
From the themed collection: Recent Open Access Articles
Paper

Impact of atmospheric anthropogenic nitrogen on new production in the northern Indian Ocean: constrained based on satellite aerosol optical depth and particulate nitrogen levels

Deposition of atmospheric pollutants enhances soluble reactive nitrogen by 1.7 and 0.9 TgN per year in the Arabian Sea and Bay of Bengal, respectively, leading to an increase in primary production.

Graphical abstract: Impact of atmospheric anthropogenic nitrogen on new production in the northern Indian Ocean: constrained based on satellite aerosol optical depth and particulate nitrogen levels
From the themed collection: Atmospheric chemistry
Paper

Phase state of organic aerosols may limit temperature-driven thermodynamic repartitioning following outdoor-to-indoor transport

Monte Carlo simulations suggest that organic aerosol repartitioning during transport indoors is often kinetically limited due to a low bulk diffusivity, but liquid and some semisolid particles can achieve equilibrium repartitioning during indoor particle lifetimes.

Graphical abstract: Phase state of organic aerosols may limit temperature-driven thermodynamic repartitioning following outdoor-to-indoor transport
Open Access Paper

Evaluating atmospheric mercury (Hg) uptake by vegetation in a chemistry-transport model

We study the uptake of atmospheric mercury by vegetation in a chemical transport model and available observations. Due to the importance of this sink in the global mercury cycle, perturbations to forested areas can elevate mercury risks.

Graphical abstract: Evaluating atmospheric mercury (Hg) uptake by vegetation in a chemistry-transport model
From the themed collection: Recent Open Access Articles
Paper

Reactive uptake of ozone to azo dyes in a coated-wall flow tube

Observations of reactive uptake of ozone to commercial azo dyes used in consumer products suggest multi-phase ozonolysis of azo dyes in the indoor environment.

Graphical abstract: Reactive uptake of ozone to azo dyes in a coated-wall flow tube
From the themed collection: Atmospheric chemistry
Open Access Paper

Mercury in air and soil on an urban-rural transect in East Africa

Spatially resolved atmospheric gaseous elemental mercury (GEM) concentrations from an urban area in the Southern Hemisphere are reported for the first time.

Graphical abstract: Mercury in air and soil on an urban-rural transect in East Africa
From the themed collection: Recent Open Access Articles
Open Access Paper

Emerging investigator series: aqueous-phase processing of atmospheric aerosol influences dissolution kinetics of metal ions in an urban background site in the Po Valley

Fog processing of atmospheric aerosol enhances the solubility and the dissolution kinetics of particle-bound metal ions.

Graphical abstract: Emerging investigator series: aqueous-phase processing of atmospheric aerosol influences dissolution kinetics of metal ions in an urban background site in the Po Valley
From the themed collection: Recent Open Access Articles
Paper

Causal discovery of drivers of surface ozone variability in Antarctica using a deep learning algorithm

We use a causal discovery algorithm based on a temporal convolution network (TCN) to discover the drivers of surface ozone variability over Antarctica.

Graphical abstract: Causal discovery of drivers of surface ozone variability in Antarctica using a deep learning algorithm
From the themed collection: Atmospheric chemistry
Paper

The Sea Spray Chemistry and Particle Evolution study (SeaSCAPE): overview and experimental methods

The SeaSCAPE campaign replicated the marine atmosphere in the laboratory to investigate the links between biological activity in the ocean and the properties of primary sea spray aerosols, volatile organic compounds, and secondary marine aerosols.

Graphical abstract: The Sea Spray Chemistry and Particle Evolution study (SeaSCAPE): overview and experimental methods
55 items

About this collection

This web collection features research articles published in Environmental Science: Processes & Impacts focussed on atmospheric chemistry.

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