Canadian bitumen is engineered for transport, but the type of product produced can affect spill contingency planning
Canadian bitumen is too viscous to transport by rail and pipeline to markets.
Retrospective on microbial transformations of halogenated organics
Prior to the 1960s, knowledge of biological transformations of highly halogenated aliphatic compounds was limited, except in mammalian organisms where enzymatic transformations occurred to rid the body of ingested harmful chemicals.
A framework to model exposure to per- and polyfluoroalkyl substances in indoor environments
We propose a framework based on exposure models for semivolatile organic compounds (SVOCs) to describe the emission and transport of, and exposure to per- and polyfluoroalkyl substances (PFAS) in indoor environments.
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.
Placenta as a target of trichloroethylene toxicity
Trichloroethylene (TCE) is an industrial solvent and a common environmental contaminant. Reactive metabolites of TCE disrupt placental cell functions important for pregnancy health.
A perspective on the role of fugacity and activity for evaluating the PBT properties of organic chemicals and providing a multi-media synoptic indicator of environmental contamination
We present a perspective on how models based on the equilibrium criteria of fugacity and chemical activity can contribute to evaluation of persistence, bioaccumulation and toxicity criteria.
Refining the aggregate exposure pathway
The elements of the aggregate exposure pathway have been refined to better facilitate organization, integration, and dissemination of exposure data.
Targeting cleanups towards a more sustainable future
Here we explore how setting different cleanup standards may influence some of the environmental, social, and economic side-effects of remediation.
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.
Multi-element (C, H, Cl, Br) stable isotope fractionation as a tool to investigate transformation processes for halogenated hydrocarbons
A review that highlights the utility of multi-element compound-specific isotope analysis (CSIA) in halogenated hydrocarbon remediation.
Photochemistry of iron in aquatic environments
Light-induced reduction of Fe(III) delivers Fe(II) as nutrient or substrate for growth of planktonic or sedimentary organisms. Biological uptake, as well as chemical or microbial oxidation of Fe(II) close this photochemically driven iron cycle.
Effects of aging and weathering on immobilization of trace metals/metalloids in soils amended with biochar
Biochar is an effective amendment for trace metal/metalloid (TM) immobilization in soils.
Tris(2-chloroethyl) phosphate, a pervasive flame retardant: critical perspective on its emissions into the environment and human toxicity
Global production of organophosphate ester flame retardants (OPFRs) and non-target toxicity of tris(2-chloroethyl) phosphate (TCEP).
Effects of soil particle size on the adsorption, distribution, and migration behaviors of heavy metal(loid)s in soil: a review
The adsorption, distribution, and migration behaviors of heavy metals in soil particles are critically reviewed from the perspectives of research method, soil type, and comparison of results.
A review of aerosol chemistry in Asia: insights from aerosol mass spectrometer measurements
Aerosol mass spectrometer has been widely deployed in Asia for real-time characterization of aerosol chemistry, and has significantly improved our understanding of the sources, properties, and formation processes of aerosols in a complex environment.
Strategies for grouping per- and polyfluoroalkyl substances (PFAS) to protect human and environmental health
Grouping strategies are needed for per- and polyfluoroalkyl substances (PFAS), in part, because it would be time and resource intensive to test and evaluate the more than 4700 PFAS on the global market on a chemical-by-chemical basis.
A critical review on the potential impacts of neonicotinoid insecticide use: current knowledge of environmental fate, toxicity, and implications for human health
The review examines literature relevant to environmental fate, transformation, and toxicity, and human exposure and health risks of neonicotinoid insecticides.
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.
How the 2010 Deepwater Horizon spill reshaped our understanding of crude oil photochemical weathering at sea: a past, present, and future perspective
A critical review of the diverse and consequential roles that photochemical weathering plays in oil spill science, with emphasis placed on how our understanding of these roles has been reshaped since the 2010 Deepwater Horizon spill.
Cross-ecosystem nutrient subsidies in Arctic and alpine lakes: implications of global change for remote lakes
Environmental change is continuing to affect the flow of nutrients, material and organisms across ecosystem boundaries. In this review, we synthesize current knowledge of cross-ecosystem nutrient subsidies between Arctic and alpine lakes and their surrounding terrain, cryosphere, and atmosphere.
Association of phthalate exposure with precocious and delayed pubertal timing in girls and boys: a systematic review and meta-analysis
Herein, recent studies were evaluated to obtain regulation results in relation to puberty status and phthalate exposure in children.
Quantifying the efficiency and selectivity of organohalide dechlorination by zerovalent iron
The various types and definitions of efficiency and selectivity that are used to quantitate the performance of organohalide reduction by zerovalent iron are reviewed and compared.
Reproductive and developmental health effects of prenatal exposure to tetrachloroethylene-contaminated drinking water
Tetrachloroethylene (PCE) is a common contaminant in both occupational and community settings.
Trichloroethylene, a ubiquitous environmental contaminant in the risk for Parkinson's disease
Trichloroethylene (TCE) is a volatile organic solvent, released into the environment from industrial sites. It contaminates ground water and soil and poses a vapor intrusion hazard for residential and commercial buildings.
Positive matrix factorization on source apportionment for typical pollutants in different environmental media: a review
A bibliometric analysis of published papers with the key words “positive matrix factorization” and “source apportionment” in ‘Web of Science’, reveals that more than 1000 papers are associated with this research and that approximately 50% of these were produced in Asia.
Distribution of pesticides in agricultural and urban soils of Brazil: a critical review
The extensive use of pesticides leads to soil contamination and is harmful to environmental health.
The atmospheric chemistry of indoor environments
The review article summarizes the wide variety of atmospheric chemistry phenomena that occur indoors.
Spatial and temporal variability of perfluoroalkyl substances in the Laurentian Great Lakes
Concentrations and distributions of perfluoroalkyl substances vary widely in water, sediments, and biota in the Laurentian Great Lakes.
The concept of essential use for determining when uses of PFASs can be phased out
The concept of essential use is developed and applied to various uses of PFASs to determine the feasibility of elimination or substitution in each use category.
Theory and modelling approaches to passive sampling
Understanding the theory behind passive sampling is essential for proper development of sampling methods and for accurate interpretation of the results.
Illuminating the dark side of indoor oxidants
A review of the current understanding of oxidants and their precursors in indoor environments.
Modelling consortium for chemistry of indoor environments (MOCCIE): integrating chemical processes from molecular to room scales
We report on the development of a modelling consortium for chemistry in indoor environments that connects models over a range of spatial and temporal scales, from molecular to room scales and from sub-nanosecond to days, respectively.
Plutonium environmental chemistry: mechanisms for the surface-mediated reduction of Pu(V/VI)
Evaluation of the seven proposed mechanisms for the surface-mediated reduction of Pu(V/VI).
Methane emissions: choosing the right climate metric and time horizon
We compare and make recommendations for the use of different climate metrics and time horizons with respect to methane emissions, applying to a case study of LNG as a shipping fuel.
Sunlight-mediated inactivation of health-relevant microorganisms in water: a review of mechanisms and modeling approaches
Inactivation occurs via direct and indirect processes in sunlit waters.
The cycle of nitrogen in river systems: sources, transformation, and flux
Suspended particle–water and sediment–water interfaces, where oxic and suboxic microenvironments coexist, are the hotspots of nitrogen transformation in river systems.
Trace metals in oysters: molecular and cellular mechanisms and ecotoxicological impacts
Oysters are important benthic bivalves in coastal and estuarine environments.
Criegee intermediates and their impacts on the troposphere
Criegee intermediates (CIs), carbonyl oxides formed in ozonolysis of alkenes, play key roles in the troposphere.
A numerical calculation method of environmental impacts for the deep sea mining industry – a review
Since the gradual decrease of mineral resources on-land, deep sea mining (DSM) is becoming an urgent and important emerging activity in the world.
Triplet state dissolved organic matter in aquatic photochemistry: reaction mechanisms, substrate scope, and photophysical properties
Excited triplet states of chromophoric dissolved organic matter (3CDOM*) play a major role among the reactive intermediates produced upon absorption of sunlight by surface waters.
Potential risks of antibiotic resistant bacteria and genes in bioremediation of petroleum hydrocarbon contaminated soils
The problems associated with potential risks of antibiotic resistance spreading during bioremediation of oil-contaminated soil are discussed. Careful selection of bacterial strains and pretreatment of organic wastes used as fertilizers are suggested.
About this collection
In addition to high quality research papers, Environmental Science: Processes & Impacts features topical review articles. Reviews will be added to this webpage as soon as possible after publication.