Themed collection Emerging Investigator Series
Emerging investigator series: contributions of reactive nitrogen species to transformations of organic compounds in water: a critical review
Reactive nitrogen species (RNS) pose a potential risk to drinking water quality because they react with organic compounds to form toxic byproducts.
Emerging investigator series: microplastic sources, fate, toxicity, detection, and interactions with micropollutants in aquatic ecosystems – a review of reviews
Hundreds of review studies have been published focusing on microplastics (MPs) and their environmental impacts.
Emerging investigator series: the role of chemical properties in human exposure to environmental chemicals
We review how chemical properties govern human exposure to environmental chemicals through different routes from different sources.
Emerging investigator series: critical review of photophysical models for the optical and photochemical properties of dissolved organic matter
Photophysical models for dissolved organic matter optical properties and photochemistry are critically reviewed.
Emerging investigator series: towards a framework for establishing the impacts of pharmaceuticals in wastewater irrigation systems on agro-ecosystems and human health
Use of reclaimed wastewater for agricultural irrigation is seen as an attractive option to meet agricultural water demands of a growing number of countries suffering from water scarcity.
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.
Emerging investigator series: physicochemical properties of wildfire ash and implications for particle stability in surface waters
Ash samples from Oregon and California wildfires were characterized and the effects on particle stability in water were related to combustion completeness and ash color to assess mobilization potential in aquatic systems.
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.
Investigating the dynamics of methylmercury bioaccumulation in the Beaufort Sea shelf food web: a modeling perspective
We used a modeling approach to explore how toxicokinetics and food-web trophodynamics affect MeHg bioaccumulation in the Beaufort Sea shelf.
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.
Emerging investigator series: quantifying the impact of cloud cover on solar irradiance and environmental photodegradation
Assessing the influence of cloud cover on solar irradiance and environmental photodegradation using machine learning models with cloudiness, time of day, and day of year as inputs.
Emerging investigator series: human CYP2A6 catalyzes the oxidation of 6:2 fluorotelomer alcohol
The human polymorphic enzyme CYP2A6 is primarily responsible for catalyzing the oxidation and activation of one PFAS, the 6:2 fluorotelomer alcohol.
Emerging investigator series: a holistic approach to multicomponent EXAFS: Sr and Cs complexation in clayey soils
Strontium and caesium are fission products of concern at many nuclear legacy sites. In this study we used a novel approach to EXAFS spectra to determine the details of Cs and Sr surface complexation in clayey soils.
Emerging investigator series: municipal wastewater as a year-round point source of neonicotinoid insecticides that persist in an effluent-dominated stream
Municipal wastewater effluent is a significant year-round point source of neonicotinoids to a temperate-region wastewater effluent-dominated stream, leading to ecological exposure conditions of concern that persist downstream.
Emerging investigator series: chemical and physical properties of organic mixtures on indoor surfaces during HOMEChem
Organic films on indoor surfaces serve as a medium for reactions and for partitioning of semi-volatile organic compounds and thus play an important role in indoor chemistry.
Emerging investigator series: entrapment of uranium–phosphorus nanocrystals inside root cells of Tamarix plants from a mine waste site
Uranium uptake and accumulation in the roots of Tamarix plants, leading to extracellular U precipitation, and the intracellular entrapment of U–P nanocrystals.
Emerging investigator series: air conditioning filters as a sampler for semi-volatile organic compounds in indoor and near-building air
SVOCs were measured in HVAC filters to compare seasonal differences, incoming vs. outgoing air, and semi-quantitatively determine indoor air concentrations.
Emerging investigator series: heterogeneous OH oxidation of primary brown carbon aerosol: effects of relative humidity and volatility
Changes in the composition and absorptivity of primary brown carbon aerosol generated from smoldering pine were measured during exposure to hydroxyl radical in a photo-reaction chamber.
Emerging investigator series: influence of marine emissions and atmospheric processing on individual particle composition of summertime Arctic aerosol over the Bering Strait and Chukchi Sea
Composition of individual atmospheric particles reveals the influence of marine sources, terrestrial sources, and anthropogenic sources on atmospheric chemistry in the changing Alaskan Arctic.
Emerging investigator series: use of behavioural endpoints in the regulation of chemicals
Suggestion for how the use of behavioral endpoints can improve in environmental risk assessment of chemicals.
Emerging investigator series: mercury mobility and methylmercury formation in a contaminated agricultural flood plain: influence of flooding and manure addition
We investigated the release of mercury from soil to soil solution and the formation of methylmercury in polluted agricultural floodplain fields during a flooding incubation experiment.
Emerging investigator series: interdependency of green rust transformation and the partitioning and binding mode of arsenic
Structural transformations of green rust and the partitioning of arsenic were tracked during aging for up to a year.
Degradation of phthalate esters in floor dust at elevated relative humidity
Emerging investigator series: Phthalate losses in floor dust are due to abiotic chemical degradation as well as microbial degradation of phthalates under elevated relative humidity conditions.
Emerging investigator series: primary emissions, ozone reactivity, and byproduct emissions from building insulation materials
Insulation materials affect indoor air by (i) releasing primary volatile organic compounds (VOCs) from enclosure cavities to the interior space, (ii) mitigating exposure to outdoor pollutants through reactive deposition (of oxidants, e.g., ozone) or filtration in infiltration air, and (iii) generating secondary VOCs and gas-phase byproducts from chemical reactions.
Emerging investigator series: spatial distribution of dissolved organic matter in ice and at air–ice interfaces
Organic solutes in snow and ice can be distributed heterogeneously throughout the ice bulk and across the ice surface. This may affect air-surface interactions and heterogeneous reactions in snow-covered regions.
Emerging investigator series: investigation of mercury emission sources using Hg isotopic compositions of atmospheric mercury at the Cape Hedo Atmosphere and Aerosol Monitoring Station (CHAAMS), Japan
This study conducted mercury (Hg) isotopic analysis, which has been expected as a new indicator for understanding the behavior of atmospheric Hg.
Emerging investigator series: oxidative potential of diesel exhaust particles: role of fuel, engine load, and emissions control
Biodiesel and the use of an emissions control system significantly reduced the oxidative potential of diesel exhaust particles, which correlated with reduction in emissions of elemental carbon.
Emerging investigator series: atmospheric cycling of indium in the northeastern United States
Atmospheric indium is dominated by human emissions, primarily from coal combustion and the smelting of lead, zinc, and other metal sulfides.
Emerging investigator series: radium accumulation in carbonate river sediments at oil and gas produced water discharges: implications for beneficial use as disposal management
In the western U.S., produced water from oil and gas wells discharged to surface water augments downstream supplies used for irrigation and livestock watering.
Emerging investigator series: effect-based characterization of mixtures of environmental pollutants in diverse sediments
Our study distinguishes the total vs. the bioavailable contamination of mixtures of environmental pollutants in sediments from contaminated sites in Europe and more remote locations in Australia and the Arctic.
Emerging investigator series: exploring the surface properties of aqueous aerosols coated with mixed surfactants
Fatty acid monolayers form in a more well-ordered state upon mixing with cholesterol at the air–seawater surface.
Emerging investigator series: determination of biphasic core–shell droplet properties using aerosol optical tweezers
Algorithm to fit whispering gallery modes retrieves biphasic properties.
Emerging investigator series: sunlight photolysis of 2,4-D herbicides in systems simulating leaf surfaces
Herbicides in the 2,4-D family were investigated for their direct photolysis under sunlight in organic solvents and on simulated leaf surfaces.
Emerging investigator series: methylmercury speciation and dimethylmercury production in sulfidic solutions
Experimental and computational evidence show that dimethylmercury is produced from decomposition of bis(methylmercury(II)) sulfide.
Emerging investigator series: geochemistry of trace elements associated with Fe and Mn nodules in the sediment of limed boreal lakes
We report on the geochemical legacy of the liming of acidified lakes in Norway. We document the occurrence of Fe–Mn nodules and the diagenetic redistribution of trace-elements at the sediment–water interface of limed boreal lakes.
Emerging investigator series: the effect of wildfire on streamwater mercury and organic carbon in a forested watershed in the southeastern United States
The amount of streamwater mercury associated with suspended solids was an order of magnitude greater following a low-intensity wildfire.
Emerging investigator series: development and application of polymeric electrospun nanofiber mats as equilibrium-passive sampler media for organic compounds
We fabricated a suite of polymeric electrospun nanofiber mats (ENMs) and investigated their performance as next-generation passive sampler media for environmental monitoring of organic compounds.
Emerging investigator series: As(V) in magnetite: incorporation and redistribution
As coprecipitated with magnetite remained incorporated over time whereas sorbed As was redistributed and became increasingly incorporated into magnetite, both the absence and presence of aqueous Fe(II).
Emerging investigator series: dual role of organic matter in the anaerobic degradation of triclosan
Organic matter affects the degradation of triclosan as both a sequester and an electron shuttle.
Emerging investigator series: a 14-year depositional ice record of perfluoroalkyl substances in the High Arctic
Detection of perfluoroalkyl substances from a remote ice cap indicate the importance of indirect and novel direct atmospheric sources.
About this collection
Environmental Science: Processes & Impacts is pleased to present this growing web collection, showcasing the exciting work being conducted by Emerging Investigators in the environmental chemical sciences. The Series is Edited by ESPI Editorial Board Members Delphine Farmer, Lenny Winkel and Guang-Guo Ying and highlights the work being conducted by up-and-coming scientists in the early stages of their independent careers, who have been identified as having the potential to influence future directions in the field.
This collection will be updated when new Emerging Investigator Series papers are published – so keep checking this page and watch the collection grow.
More details about the Emerging Investigator Series can be found on the blog, including details on how to apply for consideration and interviews with the corresponding authors featured in this collection. Direct links to each of these interviews can be found below.