CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Environmental Chemistry   
Environmental Chemistry
Journal Banner
  Environmental problems - Chemical approaches
 
blank image Search
 
blank image blank image
blank image
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Structure
Contacts
Content
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Research Fronts
Virtual Issues
Sample Issue
For Authors
General Information
Scope
Submit Article
Author Instructions
Open Access
For Referees
Referee Guidelines
Review an Article
For Subscribers
Subscription Prices
Customer Service
Library Recommendation

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter logo LinkedIn

 
 

Environmental Chemistry publishes papers reporting chemistry that enhances our understanding of the environment including air, water, soil, sediments, and biota. More

Editor-in-Chief: Kevin Francesconi

 
 
 

blank image The peer-reviewed and edited version of record published online before inclusion in an issue. blank image

blank image blank image blank image

 
Published online 22 June 2016
An integrated study of the chemical composition of Antarctic aerosol to investigate natural and anthropogenic sources 
E. Barbaro, R. Zangrando, T. Kirchgeorg, A. Bazzano, S. Illuminati, A. Annibaldi, S. Rella, C. Truzzi, M. Grotti, A. Ceccarini, C. Malitesta, G. Scarponi and A. Gambaro

Environmental context. Owing to its remoteness, Antarctica is an excellent natural laboratory for conducting studies on the behavior of marine aerosols and for monitoring the impact of global human activities. The aim of this study is to provide an extensive chemical characterization of Antarctic aerosol and to investigate its sources. A distinction among anthropogenic, crustal, and biogenic sources was defined using several chemical markers.

blank image
 
    | Supplementary Material (143 KB)
blank image

blank image blank image blank image

 
Published online 08 June 2016
Biochar amendment altered the molecular-level composition of native soil organic matter in a temperate forest soil 
Perry J. Mitchell, André J. Simpson, Ronald Soong and Myrna J. Simpson

Environmental context. Biochar amendment in soil can sequester carbon but may also stimulate microbial activity, potentially enhancing soil organic matter degradation. We incubated biochar in a temperate forest soil and characterised the soil organic matter composition using molecular-level biomarker and nuclear magnetic resonance techniques. Biochar amendment altered the native soil organic matter composition and decreased the concentration of easily degradable soil organic matter components.

blank image
 
    | Supplementary Material (825 KB)
blank image

blank image blank image blank image

 
Published online 01 June 2016
Addressing the Anthropocene 
A. D. Anbar, S. J. Romaniello, B. R. Allenby and W. S. Broecker

Environmental context. We are entering an epoch – the Anthropocene – in which human activity is changing the face of the planet. To stabilise climate, we may consider deliberate intervention into Earth’s systems, on a global scale. Responsible stewardship requires that we develop a safe, economic and environmentally acceptable means of sequestering CO2 from the atmosphere.

blank image
 
blank image

blank image blank image blank image

 
Published online 31 May 2016
Tissue-specific uptake of the benzodiazepine oxazepam in adult Eurasian perch (Perca fluviatilis) 
Martina Heynen, Tomas Brodin, Jonatan Klaminder, Micael Jonsson and Jerker Fick

Environmental context. Although pharmaceuticals are found in wild fish, there is no consensus as to which fish tissue to use when measuring the pharmaceutical concentrations. Using the psychiatric pharmaceutical oxazepam in Eurasian perch as an example, we found that oxazepam was distributed in the perch tissues in the following order of concentration: muscle < liver = brain < blood plasma. These results help to interpret and compare previous studies, and provide guidance for future studies.

blank image
 
  
blank image

blank image blank image blank image

 
Published online 09 May 2016
Soluble secondary minerals of antimony in Pezinok and Kremnica (Slovakia) and the question of mobility or immobility of antimony in mine waters 
Juraj Majzlan, Martin Števko and Tomáš Lánczos

Environmental context. Antimony enters the environment from tailings and mines but there are widely divergent statements about its mobility in the environment. This work addresses the question of mobility of Sb by a combination of mineralogical and geochemical studies.

blank image
 
    | Supplementary Material (121 KB)
blank image

blank image blank image blank image

 
Published online 05 May 2016
Arsenic adsorption onto aluminium-substituted goethite 
Ana E. Tufo, María dos Santos Afonso and Elsa E. Sileo

Environmental context. Goethite, commonly found in soils, is often partially substituted by Al and strongly influences the mobility of arsenic in the environment. The adsorption of AsV onto goethites with increasing Al substitution was explored, finding that Al incorporation decreases AsV sorption per gram of adsorbent, and that a low level of Al incorporation enhances the adsorption per unit area. Structures of the complexes formed between AsV and the oxy(hydr)oxide surface, at different pH values, are proposed by studying the changes in the surface charges of the adsorbed and non-adsorbed substituted and non-substituted goethites.

blank image
 
    | Supplementary Material (820 KB)
blank image

blank image blank image blank image

 
Published online 26 April 2016
Mass dependent processes can generate an isotope anomaly: the effect of ordinary diffusion on Δ17O in solids 
Laura Donatella Campisi

Environmental context. The nitrate oxygen isotope anomaly has been suggested as a tool for quantifying the atmospheric input of this essential nutrient to terrestrial environments. However, it is calculated that the most important transport process in minerals, diffusion, may also be responsible for measurable anomalies. The signal in Chilean nitrate minerals could be associated with diffusion during crystal growth so the belief that the nitrate is of atmospheric origin is therefore questioned.

blank image
 
    | Supplementary Material (364 KB)
blank image

blank image blank image blank image

 
Published online 26 April 2016
Parallel responses of human epidermal keratinocytes to inorganic SbIII and AsIII 
Marjorie A. Phillips, Angela Cánovas, Pei-Wen Wu, Alma Islas-Trejo, Juan F. Medrano and Robert H. Rice

Environmental context. Increasing commercial use of antimony is raising its environmental presence and thus possible effects on humans and ecosystems. An important uncertainty is the risk that exposure poses for biological systems. The present work explores the similarity in response of human epidermal keratinocytes, a known target cell type, to antimony and arsenic, where deleterious consequences of exposure to the latter are better known.

blank image
 
  
blank image

blank image blank image blank image

 
Published online 12 April 2016
Neuropsychiatric pharmaceuticals and illicit drugs in wastewater treatment plants: a review 
Alexandros G. Asimakopoulos and Kurunthachalam Kannan

Environmental context. Neuropsychiatric pharmaceuticals and illicit drugs in wastewaters are of increasing environmental concern. We compile the recent literature and evaluate the concentrations and profiles of various drugs and their removal efficiencies in wastewater treatment plants. The sewage epidemiology approach, used in the estimation of drug usage in communities, is discussed, and we make recommendations for future research in this area.

blank image
 
blank image

blank image blank image blank image

 
Published online 07 April 2016
Spatiotemporal redox dynamics in a freshwater lake sediment under alternating oxygen availabilities: combined analyses of dissolved and particulate electron acceptors 
Maximilian P. Lau, Michael Sander, Jörg Gelbrecht and Michael Hupfer

Environmental context. At sediment surfaces, the availability of oxygen is controlled by its downward transport from the water surface and its consumption in microbial metabolism. Microorganisms can also consume substances other than oxygen to dispose of the surplus charge that is generated during microbial metabolism. We investigate the complex dynamics of these other substances when the oxygen availability fluctuates, and thereby contribute to the mechanistic understanding of oxygen-consuming processes in aquatic environments.

blank image
 
    | Supplementary Material (383 KB)
blank image

blank image blank image blank image

 
Published online 07 April 2016
Organic sulfur and organic matter redox processes contribute to electron flow in anoxic incubations of peat 
Zhi-Guo Yu, Jörg Göttlicher, Ralph Steininger and Klaus-Holger Knorr

Environmental context. The extent to which organic matter decomposition generates carbon dioxide or methane in anaerobic ecosystems is determined by the presence or absence of particular electron acceptors. Evaluating carbon dioxide and methane production in anaerobic incubation of peat, we found that organic matter predominated as an electron acceptor over considered inorganic electron acceptors. We also observed changes in organic sulfur speciation suggesting a contribution of organic sulfur species to the electron-accepting capacity of organic matter.

blank image
 
    | Supplementary Material (301 KB)
blank image

blank image blank image blank image

 
Published online 29 March 2016
Characterisation of suspended particulate matter in the Rhone River: insights into analogue selection 
Danielle L. Slomberg, Patrick Ollivier, Olivier Radakovitch, Nicole Baran, Nicole Sani-Kast, Hélène Miche, Daniel Borschneck, Olivier Grauby, Auguste Bruchet, Martin Scheringer and Jérôme Labille

Environmental context. The fate and behaviour of pollutants such as pesticides, metals and nanoparticles in natural waters will influence their effects on the environment and human health. Owing to the complexity of natural waters and suspended particulate matter (SPM) that can interact with pollutants, as well as low pollutant concentrations, determination of pollutant fate and transport is non-trivial. Herein, we report a characterisation of the Rhone River chemistry to provide insight into selecting SPM analogues for experimental and modelling approaches.

blank image
 
    | Supplementary Material (1.9 MB)
blank image

blank image blank image blank image

 
Published online 23 March 2016
From the environment to NMR: water suppression for whole samples in their native state 
Hussain Masoom, Antonio Adamo and André J. Simpson

Environmental context. Environmental samples are best analysed in their native state, with minimal sample preparation, to fully understand the complex interactions and processes occurring in environmental systems. Nuclear magnetic resonance spectroscopy is a powerful tool used to study environmental samples but sample pre-treatment is often required to remove water and improve analysis. We introduce an experimental approach to remove water signals from environmental samples in their natural state, which opens the door to intact sample analysis and more environmentally relevant science.

blank image
 
  
blank image

blank image blank image blank image

 
Published online 23 March 2016
Integrated 1H NMR-based metabolomics analysis of earthworm responses to sub-lethal Pb exposure 
Ting Chen, Yan Liu, Ming-Hui Li, Hua-Dong Xu, Ji-Yang Sheng, Li Zhang and Jun-Song Wang

Heavy metals are non-degradable and are therefore a severe and persistent environmental menace. The toxic effects of Pb were investigated using NMR to determine the metabolic changes in earthworms exposed to Pb. The approach using 1H NMR to analyse earthworm metabolomics demonstrated great potential as a reliable, rapid and convenient tool to assess the toxicity of heavy metals and could be used to identify warning signs of heavy metal contamination of soil.

blank image
 
    | Supplementary Material (205 KB)
blank image

blank image blank image blank image

 
Published online 22 March 2016
Hydroxyl radical formation from bacteria-assisted Fenton chemistry at neutral pH under environmentally relevant conditions 
Jarod N. Grossman and Tara F. Kahan

Environmental context. Reactions in natural waters such as lakes and streams are thought to be extremely slow in the absence of sunlight (e.g. at night). We demonstrate that in the presence of iron, hydrogen peroxide and certain bacteria (all of which are common in natural waters), certain reactions may occur surprisingly quickly. These findings will help us predict the fate of many compounds, including pollutants, in natural waters at night.

blank image
 
    | Supplementary Material (423 KB)
blank image

blank image blank image blank image

 
Published online 29 February 2016
Oxidation products of α- and β-amyrins: potential tracers of abiotic degradation of vascular-plant organic matter in aquatic environments 
M.-A. Galeron, F. Vaultier and J.-F. Rontani

Environmental context. How can we know what happens to organic matter in aquatic environments? Although several compounds exist that can be used to trace the origin and state of organic matter, not many are sufficiently stable and specific to trace degradation processes, but α- and β-amyrins can fulfil that role. Such knowledge will help us better understand and better quantify carbon fluxes in riverine and marine environments.

blank image
 
  
blank image

blank image blank image blank image

 
Published online 29 February 2016
Haloform formation in coastal wetlands along a salinity gradient at South Carolina, United States 
Jun-Jian Wang, Yi Jiao, Robert C. Rhew and Alex T. Chow

Environmental context. Natural haloform emissions contribute to stratospheric ozone depletion but there are major unknown or underestimated sources of these gases. This study demonstrates that soil and water at tidal wetlands are important haloform sources, and emissions peak at the forest–marsh transition zone. The low-lying forested wetlands of the south-eastern United States that are facing sea-level rise and seawater intrusion may become hotspots for haloform emission.

blank image
 
    | Supplementary Material (324 KB)
blank image

blank image blank image blank image

 
Published online 29 February 2016
Arsinothricin, a novel organoarsenic species produced by a rice rhizosphere bacterium 
Masato Kuramata, Futa Sakakibara, Ryota Kataoka, Kenichi Yamazaki, Koji Baba, Masumi Ishizaka, Syuntaro Hiradate, Tsunashi Kamo and Satoru Ishikawa

Environmental context. Rice is a major human dietary source of arsenic. We identified a novel organoarsenic species, arsinothricin, produced by a bacterium in the rice rhizosphere. This result suggests diverse biochemical dynamics and microbial biodiversity of arsenic metabolism in the rice rhizosphere.

blank image
 
    | Supplementary Material (681 KB)
blank image

blank image blank image blank image

 
Published online 11 February 2016
The effect of pH, organic ligand chemistry and mineralogy on the sorption of beryllium over time 
Vanessa Boschi and Jane K. Willenbring

Environmental context. Beryllium is a toxic environmental contaminant but has many industrial and scientific applications. Our work explores the effects of soil composition on beryllium retention, focussing on organic matter, mineralogy and pH and concludes that phosphorus and sulfur oxides in addition to soil acidity are strong controls on beryllium mobility. These results aid in future predictions regarding the fate of beryllium in the environment.

blank image
 
  
blank image

blank image blank image blank image

 
Published online 10 February 2016
Secondary organic aerosol formation from ethyne in the presence of NaCl in a smog chamber 
Shuangshuang Ge, Yongfu Xu and Long Jia

Environmental context. Ethyne is the lightest of the non-methane hydrocarbons, whose oxidation product, glyoxal, is an important precursor of secondary organic aerosol. This study explores the effects of relative humidity on the formation of secondary organic aerosol under irradiation in the presence of nitrogen oxides and sodium chloride. Results show that relative humidity can enhance aerosol formation, which provides evidence of the contribution of ethyne to organic particles.

blank image
 
  
blank image

blank image blank image blank image

 
Published online 05 February 2016
Automatic and predictive fractionation of organic micropollutants in contaminated water 
Marine Brogat, Estelle Baures, Amelie Sellier, Fabien Mercier, Marie Doloy, Olivier Thomas and Benoit Roig

Environmental context. The safeguarding of water supplies and drinking water is a major issue in the consideration of human health risk management. In this context, an automatic and on-site fractionation system for the detection of organic contaminants has been developed. The main goal of this system is to establish an initial diagnosis by identifying a class of substances involved in a case of pollution.

blank image
 
    | Supplementary Material (90 KB)
blank image

blank image blank image blank image

 
Published online 07 January 2016
Photon flux dependence on solute environment in water ices 
Alexander S. McFall and Cort Anastasio

Environmental context. Anthropogenic pollutants deposited in and on snowpacks can undergo many sunlight-driven reactions. These processes have been studied, but typically without measuring the photon flux, the amount of light seen by the reactants, which is needed for comparing results across studies. This work investigates the effects of container albedo, solute location and mechanical ice crushing on the photon flux in laboratory ice samples to understand how these factors might affect photochemical rates.

blank image
 
    | Supplementary Material (526 KB)
blank image

blank image blank image blank image

 
Published online 04 January 2016
Chromate adsorption from chromite ore processing residue eluates by three Indian soils 
K. Matern and T. Mansfeldt

Environmental context. Chromate (CrO42–)-containing waste is illegally dumped in some places in the state of Uttar Pradesh, north India, although CrO42– is known to be toxic and carcinogenic. Because CrO42– is leached from the landfills, this study investigated the adsorption of CrO42– by soils. The results indicated that CrO42– is highly leachable and adsorption is inhibited, which leads to contamination of the groundwater and drinking water in this area.

blank image
 
  
blank image

blank image blank image blank image

 
Published online 21 December 2015
Quantification of nitroaromatic compounds in atmospheric fine particulate matter in Hong Kong over 3 years: field measurement evidence for secondary formation derived from biomass burning emissions 
Ka Shing Chow, X. H. Hilda Huang and Jian Zhen Yu

Environmental context. Nitroaromatic compounds constitute an important portion of brown carbon and thereby contribute to the light-absorbing properties of atmospheric aerosols. We report their abundance in Hong Kong over 3 years and show that they were mainly associated with aged biomass burning particles. Knowledge of the abundance and sources of nitroaromatic compounds could assist in evaluating their contribution to brown carbon and in apportioning secondary organic aerosols from biomass burning sources.

blank image
 
    | Supplementary Material (483 KB)
blank image

blank image blank image blank image

 
Published online 18 December 2015
Relationship of arsenic speciation and bioavailability in mine wastes for human health risk assessment 
Violet Diacomanolis, Barry N. Noller, Raijeli Taga, Hugh H. Harris, Jade B. Aitken and Jack C. Ng

Environmental context. X-Ray absorption near-edge spectroscopy (XANES) was applied to give arsenic chemical forms directly in the solid phase of mine wastes from two mine sites, including fluvial dispersion. The arsenic speciation data explained the variation of in vitro bioaccessibility and in vivo bioavailability (rat uptake) data of the mine wastes. The As speciation from XANES fitting supported the hypothesis that when soil intake is adjusted for bioaccessibility, the potential health risk estimate to local residents is significantly lower.

blank image
 
    | Supplementary Material (870 KB)
blank image

blank image blank image blank image

 
Published online 18 December 2015
Enantioselective determination of ibuprofen residues by chiral liquid chromatography: a systematic study of enantiomeric transformation in surface water and sediments 
María Eugenia León-González and Noelia Rosales-Conrado

Environmental context. Ibuprofen, a common anti-inflammatory drug and one of many pharmaceuticals sold as a mixture of enantiomers, has recently been found in river and surface waters. There are, however, few analytical methods able to separate and accurately measure ibuprofen enantiomers in environmental matrices. This study reports a method for quantifying ibuprofen enantiomers in sediments and surface water, and applies it to shed light on the degradation and fate of the enantiomers in aquatic systems.

blank image
 
    | Supplementary Material (112 KB)
blank image

blank image blank image blank image

 
Published online 15 December 2015
Changes in terrestrial organic matter and pollutant input to the Yangtze River Estuary, East China Sea, during the past century 
Xiaoyong Duan, Yanxia Li, Xianguo Li, Yi Gao and Dahai Zhang

Environmental context. The concentrations of n-alkanes, phthalates and alkylphenols in a dated sediment core from the Yangtze River estuary steadily increased, with evident peaks in c. 1980 and c. 2000. Most of the phthalates and alkylphenols in the core originated from direct industrial and municipal discharges into the lower reaches of the Yangtze River, whereas the n-alkanes were mainly from aquatic and terrestrial plants. The Yangtze River discharge plays an important role in the sedimentary records of organic compounds.

blank image
 
    | Supplementary Material (211 KB)
blank image

blank image blank image blank image

 
Published online 23 November 2015
Effects of pH value, chloride and sulfate concentrations on galvanic corrosion between lead and copper in drinking water 
Ding-Quan Ng and Yi-Pin Lin

Environmental context. Galvanic corrosion has been recently reported as the main cause of lead contamination in drinking water in urban cities. Conditions that can deter or promote galvanic corrosion, however, are not well understood. Fundamental investigations exploring the mechanisms and processes involved in galvanic corrosion in drinking water could help to implement proper corrective measures to safeguard public health from lead contamination.

blank image
 
    | Supplementary Material (489 KB)
blank image

blank image blank image blank image

 
Published online 23 November 2015
Compositions and isotopic differences of iso- and anteiso-alkanes in black mangroves (Avicennia germinans) across a salinity gradient in a subtropical estuary 
Ding He, Bernd R. T. Simoneit, Blanca Jara and Rudolf Jaffé

Environmental context. Mangroves dominate at the interface between land and sea, especially along tropical and subtropical coasts. To gain a better understanding of how mangroves respond to various environmental stress factors, we investigated the use of monomethylalkanes as potential chemical tracers for black mangroves. The application of these chemical tracers could elucidate how black mangroves respond to environmental stress such as sea level rise in mixed mangrove environments.

blank image
 
    | Supplementary Material (534 KB)
blank image

blank image blank image blank image

 
Published online 23 November 2015
Theoretical study of the gaseous hydrolysis of NO2 in the presence of NH3 as a source of atmospheric HONO 
Xu Wang, Feng-Yang Bai, Yan-Qiu Sun, Rong-Shun Wang, Xiu-Mei Pan and Fu-Ming Tao

Environmental context. Nitrous acid is an important atmospheric trace gas, but the sources and the chemical mechanisms of its production are not well understood. This study explores the effects of ammonia and water on the hydrolysis of nitrogen dioxide and nitrous acid production. The calculated results show that ammonia is more effective than water in promoting the hydrolysis reaction of nitrogen dioxide.

blank image
 
    | Supplementary Material (469 KB)
blank image

blank image blank image blank image

 
Published online 16 November 2015
Dialkylsulfate formation in sulfuric acid-seeded secondary organic aerosol produced using an outdoor chamber under natural sunlight 
Jiaying Li, Myoseon Jang and Ross L. Beardsley

Environmental context. Laboratory and field studies have both provided evidence for organosulfate formation by esterification of H2SO4 with organic compounds in aerosols. Using an outdoor chamber, the production of dialkylsufate was measured for organic aerosols produced by photooxidation of various hydrocarbons in the presence of H2SO4 aerosol and NOx. The formation of organosulfates influences the decrease of both aerosol acidity and aerosol hygroscopicity.

blank image
 
    | Supplementary Material (968 KB)
blank image

blank image blank image blank image

 
Published online 16 November 2015
Arsenic metabolism in cyanobacteria 
Shin-ichi Miyashita, Chisato Murota, Keisuke Kondo, Shoko Fujiwara and Mikio Tsuzuki

Environmental context. Cyanobacteria are ecologically important, photosynthetic organisms that are widely distributed throughout the environment. They play a central role in arsenic transformations in terms of both mineralisation and formation of organoarsenic species as the primary producers in aquatic ecosystems. In this review, arsenic resistance, transport and biotransformation in cyanobacteria are reviewed and compared with those in other organisms.

blank image
 
  
blank image

blank image blank image blank image


blank image Environmental Chemistry
Volume 13 Number 3 2016
Peter Campbell Tribute

 
Subscriber Login
Username:
Password:  

 
 
Foreword to the tribute issue for Professor Peter Campbell 
blank image
Kevin J. Wilkinson
pp. i-ii

 
 

blank image blank image blank image

 
When are metal complexes bioavailable? 
blank image
Chun-Mei Zhao , Peter G.C. Campbell and Kevin J. Wilkinson
pp. 425-433

Environmental context. The concentration of a free metal cation has proved to be a useful predictor of metal bioaccumulation and toxicity, as represented by the free ion activity and biotic ligand models. However, under certain circumstances, metal complexes have been shown to contribute to metal bioavailability. In the current mini-review, we summarise the studies where the classic models fail and organise them into categories based on the different uptake pathways and kinetic processes. Our goal is to define the limits within which currently used models such as the biotic ligand model (BLM) can be applied with confidence, and to identify how these models might be expanded.

   | Supplementary Material (187 KB)  |        Open Access Article
 

blank image blank image blank image

 
Developing a sentinel mollusc species for toxicity assessment: metal exposure, dose and response – laboratory v. field exposures and resident organisms 
blank image
Anne Taylor and William Maher
pp. 434-446

Environmental context. Metal contamination in estuarine sediments can affect ecosystem health. Molluscs are commonly used as environmental indicators because they accumulate contaminants that cause adverse health effects. We investigated metal uptake and effects in the Sydney cockle, comparing exposure to contaminated lake sediments in situ and in laboratory aquariums. Although differences were observed between the different exposure types, all approaches were found to be valid for investigating metal health effects in this organism.

 
  
 

blank image blank image blank image

 
Evaluating the concentration addition approach for describing expected toxicity of a ternary metal mixture (Ni, Cu, Cd) using metal speciation and response surface regression 
blank image
Yamini Gopalapillai and Beverley Hale
pp. 447-456

Environmental context. Environmental quality guidelines are often based on an ‘additive’ approach using single metal toxicity values. We evaluated the ‘additive’ approach by testing it on three priority pollutant metals (Ni, Cu, Cd), and found that the toxicity of the metal mixture was less than additive when dose was expressed as total metal concentration, but it was additive when dose was expressed as bioavailable metal. We suggest that for metal mixtures, a more realistic indicator of risk is provided by calculations based on the bioavailable form of metals.

 
    | Supplementary Material (403 KB)
 

blank image blank image blank image

 
Toxicity of engineered copper (Cu0) nanoparticles to the green alga Chlamydomonas reinhardtii 
blank image
Emanuel Müller , Renata Behra and Laura Sigg
pp. 457-463

Environmental context. Engineered copper nanoparticles are presently under development for various uses and may thus be finally released into the aquatic environment. Copper is well known to be both an essential and a toxic element for aquatic organisms. Here, we investigate the toxicity of copper nanoparticles to a green alga and compare it with the toxicity of dissolved copper.

 
    | Supplementary Material (597 KB)
 

blank image blank image blank image

 
Metal speciation from stream to open ocean: modelling v. measurement 
blank image
Edward Tipping , Stephen Lofts and Anthony Stockdale
pp. 464-477

Environmental context. The chemical speciation of metals strongly influences their transport, fate and bioavailability in natural waters. Analytical measurement and modelling both play important roles in understanding speciation, while modelling is also needed for prediction. Here, we analyse a large set of data for fresh waters, estuarine and coastal waters, and open ocean water, to examine how well measurements and modelling predictions agree.

   | Supplementary Material (885 KB)  |        Open Access Article
 

blank image blank image blank image

 
Determination of the free-ion concentration of rare earth elements by an ion-exchange technique: implementation, evaluation and limits 
blank image
Sébastien Leguay , Peter G. C. Campbell and Claude Fortin
pp. 478-488

Environmental context. The lanthanides are a group of heavy elements (from lanthanum to lutetium) increasingly used in many electronic consumer products and little is known about their environmental mobility and toxicity. In natural systems, these elements will bind to natural organic matter but metal toxicity is usually defined by the free metal ion concentration. Here, we propose a method based on sample equilibration with an ion-exchange resin to measure the free lanthanide ion concentration in the presence of natural organic matter.

 
    | Supplementary Material (447 KB)
 

blank image blank image blank image

 
Lead solubility in seawater: an experimental study 
blank image
Brad M. Angel , Simon C. Apte , Graeme E. Batley and Mark D. Raven
pp. 489-495

Environmental context. Many trace metals including lead are only sparingly soluble in seawater and may exist in both dissolved and particulate forms (e.g. as precipitates). Aquatic organisms may experience different toxic effects from exposure to dissolved and particulate trace metals. This study reports the limits to lead solubility in seawater that influence the exposure to these forms of lead in the field and the laboratory.

   | Supplementary Material (531 KB)  |        Open Access Article
 

blank image blank image blank image

 
Influence of dissolved organic matter (DOM) source on copper speciation and toxicity to Brachionus plicatilis 
blank image
Tara N. Tait , Christopher A. Cooper , James C. McGeer , Chris M. Wood and D. Scott Smith
pp. 496-506

Environmental context. Organic matter dissolved in water can mitigate toxic effects of copper, which should be taken into account when estimating risks of copper pollution. The composition of this organic matter, however, can vary widely, and these variations might also need to be taken into account. This work addresses the question of organic matter quality and demonstrates that only the amount and not the source influences copper toxicity – good news for risk analysis because it simplifies predictions of the effects of copper in specific receiving waters.

 
    | Supplementary Material (273 KB)
 

blank image blank image blank image

 
Surfactant toxicity to Artemia franciscana and the influence of humic acid and chemical composition 
blank image
Rachel D. Deese , Madeline R. LeBlanc and Robert L. Cook
pp. 507-516

Environmental context. Surfactants, a pollutant class routinely introduced into aquatic environments, can be toxic to a variety of species. It is thus important to understand how surfactants’ toxicity is influenced by their interactions with other environmental constituents, including natural organic matter. We report the changes in toxicity of three surfactants to brine shrimp in the presence of unmodified and chemically modified humic acids.

 
    | Supplementary Material (303 KB)
 

blank image blank image blank image

 
A comparative study of long-term Hg and Pb sediment archives 
blank image
Stephen A. Norton , George L. Jacobson , Jiří Kopáček and Tomáš Navrátil
pp. 517-527

Environmental context. Lead and mercury are toxic atmospheric pollutants emitted in large quantities since 1850. Accumulating lake and peat sediments capture the pollutants from the atmosphere and indirectly record changes in deposition through time. This study of four long-term sediment records addresses the questions, ‘What proportion of this atmospheric deposition is natural background?’ and ‘Does the archive faithfully represent true rates of atmospheric deposition?’

 
  
 

blank image blank image blank image

 
Long-term responses in soil solution and stream-water chemistry at Hubbard Brook after experimental addition of wollastonite 
blank image
Shuai Shao , Charles T. Driscoll , Chris E. Johnson , Timothy J. Fahey , John J. Battles and Joel D. Blum
pp. 528-540

Environmental context. Calcium silicate was added to a forest watershed in New Hampshire, USA, to accelerate its recovery from acid rain. The acid–base status of soil and stream quality improved over the 12-year study, with the most pronounced response in the upper elevation and the upper soil of the watershed. A total of 95 % of the added calcium and 87 % of the added silica were retained in the watershed over the study period.

 
    | Supplementary Material (723 KB)
 

blank image blank image blank image

   
These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.

    EN16029  Accepted 15 June 2016
    Role of microbial reducing activity in antimony and arsenic release from an unpolluted wetland soil: a lab scale study using sodium azide as a microbial inhibiting agent
    Asmaa Rouwane, Marion Rabiet, Isabelle Bourven , Malgorzata Grybos , Lucie Mallet, Gilles Guibaud
    Abstract


    EN16049  Accepted 10 June 2016
    Carbon and Nitrogen dynamics in decaying wood: paleoenvironmental implications
    Romain Tramoy, Mathieu Sebilo, Thanh Thuy Nguyen Tu, Johann Schnyder
    Abstract


    EN16038  Accepted 06 June 2016
    Insights into natural organic matter and pesticide characterisation and distribution in the Rhone River
    Danielle Slomberg, Patrick Ollivier, Olivier Radakovitch, Nicole Baran, Nicole Sani-Kast, Auguste Bruchet, Martin Scheringer, Jerome Labille
    Abstract


    EN16046  Accepted 30 May 2016
    Comparative evaluation of iron leach from different sources of fly ash under atmospherically relevant conditions
    Jaya Borgatta, Amanda Paskavitz, Deborah Kim, Juan Navea
    Abstract


    EN15230  Accepted 30 May 2016
    Molecular Composition of Urban Organic Aerosols on Clear and Hazy Days in Beijing: A Comparative Study Using FT-ICR MS
    Bin Jiang, Binyu Kuang, Yongmei Liang, Jingyi Zhang, Hilda Huang, Chunming Xu, Jian Zhen Yu, Quan Shi
    Abstract


    EN16005  Accepted 18 May 2016
    Proteins are a major component of dissolved organic nitrogen (DON) leached from terrestrially aged Eucalyptus camaldulensis leaves.
    Clayton Harris, Ewen Silvester, Gavin Rees, John Pengelly, Ljiljana Puskar
    Abstract


6


The Most Read ranking is based on the number of downloads from the CSIRO PUBLISHING website of articles published in the previous 12 months. Usage statistics are updated daily.

Rank Paper Details
1. Published 25 September 2015
Marine microplastic-associated biofilms – a review

Sonja Oberbeckmann, Martin G. J. Löder and Matthias Labrenz

2. Published 25 September 2015
Beyond the ocean: contamination of freshwater ecosystems with (micro-)plastic particles

Rachid Dris, Hannes Imhof, Wilfried Sanchez, Johnny Gasperi, François Galgani, Bruno Tassin and Christian Laforsch

3. Published 25 September 2015
Adsorption of trace metals by microplastic pellets in fresh water

Andrew Turner and Luke A. Holmes

4. Published 25 September 2015
Microplastic contamination in an urban area: a case study in Greater Paris

Rachid Dris, Johnny Gasperi, Vincent Rocher, Mohamed Saad, Nicolas Renault and Bruno Tassin

5. Published 4 January 2016
First national-scale reconnaissance of neonicotinoid insecticides in streams across the USA

Michelle L. Hladik and Dana W. Kolpin

6. Published 25 September 2015
Questions of size and numbers in environmental research on microplastics: methodological and conceptual aspects

Montserrat Filella

7. Published 25 September 2015
Characterisation of microplastics and toxic chemicals extracted from microplastic samples from the North Pacific Gyre

Lorena M. Rios Mendoza and Patrick R. Jones

8. Published 4 January 2016
Distributions of neonicotinoid insecticides in the Commonwealth of Massachusetts: a temporal and spatial variation analysis for pollen and honey samples

Chensheng (Alex) Lu, Chi-Hsuan Chang, Lin Tao and Mei Chen

9. Published 25 September 2015
Plastic pollution in Swiss surface waters: nature and concentrations, interaction with pollutants

Florian Faure, Colin Demars, Olivier Wieser, Manuel Kunz and Luiz Felippe de Alencastro

10. Published 25 September 2015
Focal plane array detector-based micro-Fourier-transform infrared imaging for the analysis of microplastics in environmental samples

Martin Günter Joachim Löder, Mirco Kuczera, Svenja Mintenig, Claudia Lorenz and Gunnar Gerdts

11. Published 27 July 2015
A recent survey of naturally occurring organohalogen compounds

Gordon W. Gribble

12. Published 19 November 2015
A novel method for the quantification, characterisation and speciation of silver nanoparticles in earthworms exposed in soil

Sunday Makama, Ruud Peters, Anna Undas and Nico W. van den Brink

13. Published 19 November 2015
Transformations that affect fate, form and bioavailability of inorganic nanoparticles in aquatic sediments

Richard Kynaston Cross, Charles Tyler and Tamara S Galloway

14. Published 25 May 2016
When are metal complexes bioavailable?

Chun-Mei Zhao, Peter G.C. Campbell and Kevin J. Wilkinson

15. Published 19 November 2015
Interaction of humic acids with soil minerals: adsorption and surface aggregation induced by Ca2+

Nanci Kloster and Marcelo Avena

16. Published 19 November 2015
Phosphorus and arsenic distributions in a seasonally stratified, iron- and manganese-rich lake: microbiological and geochemical controls

Adam Hartland, Martin S. Andersen and David P. Hamilton

17. Published 27 July 2015
Iron-catalysed oxidation and halogenation of organic matter in nature

Peter Comba, Marion Kerscher, Torsten Krause and Heinz Friedrich Schöler

18. Published 4 January 2016
Effects of myo-inositol hexakisphosphate and orthophosphate adsorption on aggregation of CeO2 nanoparticles: roles of pH and surface coverage

Biao Wan, Yupeng Yan, Fan Liu, Wenfeng Tan, Jiajie He and Xionghan Feng

19. Published 19 November 2015
Characterisation of bioaccumulation dynamics of three differently coated silver nanoparticles and aqueous silver in a simple freshwater food chain

Judit Kalman, Kai B. Paul, Farhan R. Khan, Vicki Stone and Teresa F. Fernandes

20. Published 4 January 2016
Are humans exposed to increasing amounts of unidentified organofluorine?

Leo W. Y. Yeung and Scott A. Mabury


      
Current Issue
Journal Cover
Volume 13 (3)

red arrow Submit Article
blank image
Use the online submission system to send us your paper.

 Advertisement


   
Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2016