Abstract:
:Microcystin release from algal cells influences use of copper-algaecides in water resources. Accurate data regarding relationships between copper-algaecide exposures and responses of microcystin-producing algae are needed to make informed management decisions. Responses of Microcystis aeruginosa were measured in terms of cellular microcystin-LR (MC-LR), aqueous MC-LR, and chlorophyll-a following exposure to CuSO4 and copper-ethanolamine. Comparisons were made between treated and untreated samples, and copper formulations. EC50s and slopes for M. aeruginosa responses to copper exposures were calculated. Algal responses followed a sigmoidal exposure-response relationship, and cellular MC-LR and chlorophyll-a were negatively related to copper concentrations. Aqueous MC-LR increased with copper concentrations, although the increase in aqueous MC-LR was not proportional to decreases in cellular MC-LR and chlorophyll-a. Cellular MC-LR and chlorophyll a declined at a greater rate than aqueous MC-LR increased. Total MC-LR was less than untreated controls following copper exposure. Differences were measured between copper formulations in terms of aqueous and total MC-LR concentrations at concentrations of 0.5 and 1.0 mg Cu L-1. Aqueous and total MC-LR were greater (10-20%) following exposure to CuSO4 compared to copper-ethanolamine one day following exposure. The positive relationship between copper concentration and aqueous MC-LR at 0.07-1.0 mg Cu L-1 demonstrates that lower copper concentrations were as effective as higher concentrations in controlling M. aeruginosa while decreasing the total amount of MC-LR, and minimizing the proportion of MC-LR released to the aqueous-phase. Results serve to support more accurate risk evaluations of MC-LR concentrations when M. aeruginosa is exposed to copper-algaecides and when it is untreated.
journal_name
Chemospherejournal_title
Chemosphereauthors
Iwinski KJ,Calomeni AJ,Geer TD,Rodgers JH Jrdoi
10.1016/j.chemosphere.2015.12.070subject
Has Abstractpub_date
2016-03-01 00:00:00pages
74-81eissn
0045-6535issn
1879-1298pii
S0045-6535(15)30524-5journal_volume
147pub_type
杂志文章相关文献
CHEMOSPHERE文献大全abstract::The Upper Hudson River (UHR) has been contaminated with polychlorinated biphenyls (PCBs) since the 1940s due to the manufacture of capacitors at two plants near Hudson Falls and Fort Edward, NY by General Electric (GE). Dredging of portions of the UHR was conducted from 2009 to 2015 as a partial remedy for this contam...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.127438
更新日期:2020-11-01 00:00:00
abstract::Use of wastewater is known to provide nutrients for crop plants, but its potential to improve phosphorus (P) availability in semi-arid regions is poorly understood. In this study, seasonal changes in soil P availability as well as associated phyiscochemical and biochemical indicators were investigated from the wastewa...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.124725
更新日期:2020-01-01 00:00:00
abstract::Ballast water managements systems (BWMS) installed on vessels may use active substances to inactivate organisms. This paper provides new insights in the global issue of noxious disinfection by-products (DBP) discharge with ballast water, and the related risk assessment for human health. The GESAMP ballast water workin...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.06.101
更新日期:2019-11-01 00:00:00
abstract::The contamination of cereals with arsenic (As) is a global health and agronomic concern. This study compared the physiological response, As uptake and As speciation in the grains and above ground tissues of 20 wheat cultivars exposed to 5 mg As kg-1 soil as either arsenate (AsV) or dimethylarsenate (DMA) under glassho...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.04.043
更新日期:2017-08-01 00:00:00
abstract::Eight software applications are compared for their performance in estimating the octanol-water partition coefficient (Kow), melting point, vapor pressure and water solubility for a dataset of polychlorinated biphenyls, polybrominated diphenyl ethers, polychlorinated dibenzodioxins, and polycyclic aromatic hydrocarbons...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.11.137
更新日期:2018-03-01 00:00:00
abstract::The possible abiotic reduction of selenite to form elemental Se was studied under controlled conditions in the presence of ferrous iron. The reduction of selenite and formation of Se (0) was found to be a surface-mediated reaction by iron oxides. Without the presence of the reactive surface of freshly precipitated iro...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2008.10.043
更新日期:2009-02-01 00:00:00
abstract::A woody-biochar was added to waste biomass during a composting process. The resulting compost-char was amended to a metal contaminated soil and two plant species, L. perenne and E. sativa, were grown in a pot experiment to determine 1) plant survival and stress factors, 2) uptake of metals to plants and, 3) chemical c...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.125255
更新日期:2020-03-01 00:00:00
abstract::Photochemical behavior of various polycyclic aromatic hydrocarbons (PAHs) on Fe3+-modified montmorillonite was explored to determine their potential kinetics, pathways, and mechanism under visible light. Depending on the type of PAH molecules, the transformation rate follows the order of benzo[a]pyrene ≈ anthracene > ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.06.106
更新日期:2017-10-01 00:00:00
abstract::A simple Ca(OH)(2)-based replacement-precipitation process was applied to the removal of EDTA-chelated copper from wastewaters. The effect of initial pH of the solution, molar ratio of Ca(2+) to Cu(II), the presence of CO(2) on the removal efficiency was investigated. The experimental results showed that the Ca(OH)(2)...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2008.06.010
更新日期:2008-10-01 00:00:00
abstract::Recently, a new sampling device combining active and passive sampling (APS) was developed for the measurement of time-averaged concentrations of metal species and both polar and non-polar organic contaminants in water. By coupling a diffusion cell (loaded with a set of sorbents selective for different substances) with...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.124400
更新日期:2019-12-01 00:00:00
abstract::Bromination of ethynylestradiol (EE2) was studied using fluorescence and conventional and stopped-flow absorbance spectroscopy. EE2 transformations in the presence of bromine were determined to proceed through sequential reactions. The first step is very rapid and results in the formation of a brominated cyclohexadien...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2008.02.055
更新日期:2008-06-01 00:00:00
abstract::The purpose of this study is to investigate the bio-accumulation of Cd(II), Cu(II), Pb(II) and Zn(II) in Pittosporum tobira (Thunb.) Aiton leaves sampled in different zones of Messina, in order to assess the level of atmospheric metal deposition in correlation with the traffic volume. Derivative stripping chronopotent...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2004.11.066
更新日期:2005-05-01 00:00:00
abstract::Alginate-immobilized Trametes versicolor decolorized Amaranth at similar rates in repeated batch culture when the dye was present in either (i) modified Kirk's medium containing 0.22 gl(-1) ammonium tartrate, (ii) the same buffer, thiamine, trace elements and glucose concentrations as in the modified Kirk's medium, or...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2005.03.070
更新日期:2005-11-01 00:00:00
abstract::The quantity and spectroscopic features of dissolved organic matter (DOM) in treated wastewaters were studied for up to 57 facilities across 12 industrial categories to evaluate the potential influences of the effluents on downstream ecosystems and the feasibility of spectroscopic techniques in discriminating pollutio...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2015.02.028
更新日期:2015-05-01 00:00:00
abstract::This work aimed to perform selective experimental arrays based on the electro-Fenton hybrid (EFH) process for pollutants abatement and toxicity reduction in brewery wastewater (BW). Fenton and electrocoagulation (EC) methods were assessed preliminarily, including the Fe2+ catalyst yield and H2O2 loss. Each method perf...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.128367
更新日期:2021-01-01 00:00:00
abstract::Twenty-three barbels (Barbus graellsii), 30 bleaks (Alburnus alburnus) and 4 sediment samples were collected from four areas of the Cinca River (NE Spain), upstream and downstream of a mercury cell chlor-alkali plant. Mercury concentration in sediments downstream of the plant was about 25 times higher than the concent...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2006.07.053
更新日期:2007-01-01 00:00:00
abstract::We investigated the effects of the inclusion of biological activated carbon (BAC) on membrane fouling in combined process of ozonation, coagulation and ceramic membrane filtration (O3 + PACl + CMF) for treating secondary effluent. Inclusion of BAC between ozonation and coagulation reduced membrane permeability. The no...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2018.12.071
更新日期:2019-04-01 00:00:00
abstract::This study investigated the abatement of a number of antimicrobials frequently detected in municipal wastewater by conventional ozonation and a recently developed ozone-based advanced oxidation process, the electro-peroxone (E-peroxone) process. A synthetic water and a real secondary wastewater effluent were spiked wi...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.06.205
更新日期:2019-11-01 00:00:00
abstract::The discovery that natural and synthetic chemicals, in the form of excreted hormones and pharmaceuticals, as well as a vast array of compounds with domestic and industrial applications, can enter the environment via wastewater treatment plants and cause a wide variety of environmental and health problems even at very ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2007.04.069
更新日期:2007-10-01 00:00:00
abstract::Phytoremediation technology has been applied for heavy metal elimination for many years, however little research about the difference of remediation efficiency of hyperaccumulator in different soils was reported. Here, a pot experiment was conducted with a cadmium (Cd)/zinc hyperaccumulator Sedum alfredii Hance grown ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.127986
更新日期:2021-01-01 00:00:00
abstract::Microbial contamination in drinking water is of great concern around the world because of high pathogenic risks to humans. Semiconductor photocatalysis has aroused an increasing interest as a promising environmental remediation technology for water disinfection and microbial control. Among various photocatalysts, grap...
journal_title:Chemosphere
pub_type: 杂志文章,评审
doi:10.1016/j.chemosphere.2018.09.137
更新日期:2019-01-01 00:00:00
abstract::Several anthropogenic contaminants, including pesticides and heavy metals, can affect honey bee health. The effects of mixtures of heavy metals and pesticides are rarely studied in bees, even though bees are likely to be exposed to these contaminants in both agricultural and urban environments. In this study, the leth...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.10.068
更新日期:2018-01-01 00:00:00
abstract::In a historical mining area residual material has been filled on land and these locations are used today as agricultural soils or house gardens. The antimony concentrations in these soils are up to 500 mg/kg. Antimony transfer into 19 vegetable and crop species was investigated. In grain and other storage organs up to...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(00)00037-0
更新日期:2000-12-01 00:00:00
abstract::Municipal wastewater treatment plant (WWTP) effluents represent an important contamination source of antibiotic resistance, threatening the ecological safety of receiving environments. In this study, the release of antibiotic resistance to sulfonamides and tetracyclines in the effluents of ten WWTPs in China was inves...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.01.041
更新日期:2017-04-01 00:00:00
abstract::Transformation processes of nitroaromatic compounds (NAC) are described that lead to polar and highly hydrophilic metabolites in ammunition waste water. For the identification of proposed metabolites, several analytical methods for the separation and determination of these compounds were developed and applied to the i...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(98)00106-4
更新日期:1998-09-01 00:00:00
abstract::This study evaluated the effect of humic acid (HA) on physicochemical properties of bacterial surfaces and on mass transfer of polycyclic aromatic hydrocarbons (PAHs) from aqueous phase into intracellular bacteria. Due to this process' potential for bacterial degradation, using Sphingobium sp. PHE3, degradation of phe...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.06.026
更新日期:2017-10-01 00:00:00
abstract::Tris (2-chloroethyl) phosphate (TCEP), a substitute for brominated flame retardants (FRs) that have been phased out of use, is frequently detected in aqueous environments. However, previous studies on its endocrine disrupting effects have mainly focused on terrestrial mammals. Here, to comprehensively evaluate the pot...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2016.10.038
更新日期:2017-02-01 00:00:00
abstract::The electrochemical oxidation of aniline (AN) and ortanilic (OA), metanilic (MA) and sulfanilic (SA) acids was performed using as anode a boron-doped diamond (BDD) electrode. Tests were performed with model solutions of the different amines, with concentrations of 200mg L(-1), using as electrolyte 0.035 M Na2SO4, in a...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2010.02.031
更新日期:2010-04-01 00:00:00
abstract::The unexpected incorporation of ionic Mn and Fe in the crystalline structure of titanate nanowires was accomplished when a contaminated a titanium source was used. The presence of Mn (8.1 mg L-1) and Fe (4.3 mg L-1) result in the production of a novel co-doped (Fe,Mn) titanate nanowires (TNW) material with improved op...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.126240
更新日期:2020-07-01 00:00:00
abstract::Halonitromethanes (HNMs) as one typical class of nitrogenous disinfection byproducts in drinking water and wastewater are receiving attentions due to their high toxicity. This study applied a simulator of the human gastrointestinal tract to determine the dehalogenation processes of trichloronitromethane, bromonitromet...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2018.08.039
更新日期:2018-11-01 00:00:00