Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

A substantial increase in the number of studies using the optical properties (absorbance and fluorescence) of dissolved organic matter (DOM) as a proxy for its chemical properties in estuaries and the coastal and open ocean has occurred during the last decade. We are making progress on finding the actual chemical compounds or phenomena responsible for DOM’s optical properties. Ultrahigh resolution mass spectrometry, in particular, has made important progress in making the key connections between optics and chemistry. But serious questions remain and the last major special issue on DOM optics and chemistry occurred nearly 10 years ago. Controversies remain from the non-specific optical properties of DOM that are not linked to discrete sources, and sometimes provide conflicting information. The use of optics, which is relatively easier to employ in synoptic and high resolution sampling to determine chemistry, is a critical connection to make and can lead to major advances in our understanding of organic matter cycling in all aquatic ecosystems. The contentions and controversies raised by our poor understanding of the linkages between optics and chemistry of DOM are bottlenecks that need to be addressed and overcome.

CDOM --- dissolved organic matter --- Absorbance --- fluorescence --- biomarkers --- Stable isotopes --- Mass Spectrometry --- dissolved organic carbon

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Cyanobacterial blooms are a water quality problem that is widely acknowledged to have detrimental ecological and economic effects in drinking and recreational water supplies and fisheries. There is increasing evidence that cyanobacterial blooms have increased globally and are likely to expand in water resources as a result of climate change. Of most concern are cyanotoxins, along with the mechanisms that induce their release and determine their fate in the aquatic environment. These secondary metabolites pose a potential hazard to human health and agricultural and aquaculture products that are intended for animal and human consumption; therefore, strict and reliable control of cyanotoxins is crucial for assessing risk. In this direction, a deeper understanding of the mechanisms that determine cyanobacterial bloom structure and toxin production has become the target of management practices. This Special Issue, entitled “Advancing Knowledge on Cyanobacterial Blooms in Freshwaters”, aims to bring together recent multi- and interdisciplinary research, from the field to the laboratory and back again, driven by working hypotheses based on any aspect of mitigating cyanobacterial blooms, from ecological theory to applied research.

Research & information: general --- Biology, life sciences --- blooms --- cyanobacteria --- control --- toxins --- phenyl-acyl compounds --- caffeic acid --- non-toxic --- redox microcystin LR --- Microcystis aeruginosa --- logistic equation --- max algal population --- hydrodynamic --- mass transfer --- ecological function --- ecosystems --- harmful cyanobacterial bloom (CyanoHAB) --- proper functioning condition (PFC) --- total maximum daily load (TMDL) --- non-point source (NPS) --- point source (PS) --- Oregon Department of Environmental Quality (ODEQ) --- best management practice (BMP) --- stream-lake linkage --- taxonomic --- bacterial community --- environmental change --- mitten crab culture --- cyanobacteria community --- seasonal variation --- environmental factors --- potentially harmful species --- Lake Guchenghu --- man-made surface water channel --- transboundary --- nestedness --- Balkan --- Dolichospermum lemmermannii --- microcystin --- Lake Ludoš --- dissolved inorganic nitrogen --- dissolved organic carbon --- phosphonate --- subsurface methane maximum --- stoichiometry --- Synechococcus --- cyanobacterial growth --- stress responses --- Pseudanabaena galeata --- oxidative stress --- antioxidative enzymes --- freshwater --- bloom --- air temperature --- nutrients --- model --- subtropical reservoir --- functional groups --- phytoplankton --- seasonal succession --- cyanobacterial bloom --- water quality --- human and animal health --- climate change --- eutrophication

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Cyanobacterial blooms are a water quality problem that is widely acknowledged to have detrimental ecological and economic effects in drinking and recreational water supplies and fisheries. There is increasing evidence that cyanobacterial blooms have increased globally and are likely to expand in water resources as a result of climate change. Of most concern are cyanotoxins, along with the mechanisms that induce their release and determine their fate in the aquatic environment. These secondary metabolites pose a potential hazard to human health and agricultural and aquaculture products that are intended for animal and human consumption; therefore, strict and reliable control of cyanotoxins is crucial for assessing risk. In this direction, a deeper understanding of the mechanisms that determine cyanobacterial bloom structure and toxin production has become the target of management practices. This Special Issue, entitled “Advancing Knowledge on Cyanobacterial Blooms in Freshwaters”, aims to bring together recent multi- and interdisciplinary research, from the field to the laboratory and back again, driven by working hypotheses based on any aspect of mitigating cyanobacterial blooms, from ecological theory to applied research.

blooms --- cyanobacteria --- control --- toxins --- phenyl-acyl compounds --- caffeic acid --- non-toxic --- redox microcystin LR --- Microcystis aeruginosa --- logistic equation --- max algal population --- hydrodynamic --- mass transfer --- ecological function --- ecosystems --- harmful cyanobacterial bloom (CyanoHAB) --- proper functioning condition (PFC) --- total maximum daily load (TMDL) --- non-point source (NPS) --- point source (PS) --- Oregon Department of Environmental Quality (ODEQ) --- best management practice (BMP) --- stream-lake linkage --- taxonomic --- bacterial community --- environmental change --- mitten crab culture --- cyanobacteria community --- seasonal variation --- environmental factors --- potentially harmful species --- Lake Guchenghu --- man-made surface water channel --- transboundary --- nestedness --- Balkan --- Dolichospermum lemmermannii --- microcystin --- Lake Ludoš --- dissolved inorganic nitrogen --- dissolved organic carbon --- phosphonate --- subsurface methane maximum --- stoichiometry --- Synechococcus --- cyanobacterial growth --- stress responses --- Pseudanabaena galeata --- oxidative stress --- antioxidative enzymes --- freshwater --- bloom --- air temperature --- nutrients --- model --- subtropical reservoir --- functional groups --- phytoplankton --- seasonal succession --- cyanobacterial bloom --- water quality --- human and animal health --- climate change --- eutrophication

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Riverbank filtration (RBF) schemes for the production of drinking water are increasingly challenged by new constituents of concern, such as organic micropollutants and pathogens in the source water and hydrological flow variations due to weather extremes. RBF and new technology components are integrated and monitoring and operating regimes are adopted to further optimize water treatment in bank filtration schemes for these new requirements. This Special Issue presents results from the EU project AquaNES “Demonstrating synergies in combined natural and engineered processes for water treatment systems” (www.aquanes.eu). Additionally, papers from other research groups cover the efficiency of bank filtration and post-treatment, advantages and limitations of combining natural and engineered processes, parameter-specific assessment of removal rates during bank filtration, and the design and operation of RBF wells. The feasibility, design, and operation of RBF schemes under specific site conditions are highlighted for sites in the US, India, and South Korea

floods --- environmental monitoring --- river bank filtration --- heavy metals --- riverside water source --- entrance velocity --- ultrafiltration --- online monitoring --- drinking water treatment --- water treatment --- system costs --- optimization --- biofilm --- fluorescence excitation-emission matrix --- riverbed --- inorganic chemicals --- well structure remodeling --- riverbank filtration (RBF) --- sub-oxic conditions --- electro-chlorination --- energy generation --- pressure loss --- bank filtrate portion --- removal efficacy --- bank filtrate --- manganese --- out/in membrane comparison --- pharmaceutical residues --- analytical method --- hydrochemistry --- subsurface geology --- dissolved organic matter --- column experiments --- storage tank --- groundwater --- organic matter composition --- water supply --- rural water supply --- collector wells --- mirror-image method --- southern India --- gabapentin --- microorganisms --- site investigation --- small communities --- decentralized capillary nanofiltration --- PHREEQC --- renewable energy --- droughts --- hydrological trends --- bank filtration --- filter cake --- sulphate --- point-bar alluvial setting --- inline electrolysis --- energy efficiency --- Ganga --- climate change --- turbine --- Nakdong River --- organic matter degradation --- oxypurinol --- slow sand filtration --- suboxic --- PARAFAC-EEM --- Krishna River --- water quality --- smart villages --- micropollutants --- anoxic --- dissolved organic carbon (DOC) --- attenuation --- organic micropollutants --- disinfection --- surface water treatment --- nitrate --- drinking water hydropower --- pesticides --- disinfection by-products --- Damodar --- pathogen barrier --- organic carbon --- salinity --- sustainable water production --- clogging --- Yamuna --- LC-OCD --- redox sensitivity --- pharmaceuticals --- high temperature --- performance --- riverbank filtration --- trihalomethanes --- iron

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Comprehensive understanding of surface water and groundwater interaction is essential for effective water resources management. Groundwater and surface water are closely connected components that constantly interact with each other within the Earth’s hydrologic cycle. Many studies utilized observations to explain the surface water and groundwater interactions by carefully analyzing the behavior of surface water features (streams, lakes, reservoirs, wetlands, and estuaries) and the related aquifer environments. However, unlike visible surface water, groundwater, an invisible water resource, is not easy to measure or quantify directly. Nevertheless, demand for groundwater that is highly resilient to climate change is growing rapidly. Furthermore, groundwater is the prime source for drinking water supply and irrigation, and hence critical to global food security. Groundwater needs to be managed wisely, protected, and especially sustainably used. However, this task has become a challenge to many hydrologic systems in arid to even humid regions because of added stress caused by changing environment, climate, land use, population growth, etc. In this issue, the editors present contributions on various research areas such as the integrated surface water and groundwater analysis, sustainable management of groundwater, and the interaction between surface water and groundwater. Methodologies, strategies, case studies as well as quantitative techniques for dealing with combined surface water and groundwater management are of interest for this issue.

Research & information: general --- Environmental economics --- groundwater-surface water interaction --- analytical --- numerical --- FEMME --- STRIVE --- MODFLOW --- Long Short-Term Memory --- groundwater level prediction --- groundwater withdrawal impact --- groundwater level variation --- machine learning --- integrated surface water and groundwater analysis --- climate change --- hydraulic fracturing --- construction of well pads --- MIKE-SHE --- MIKE-11 --- northwestern Alberta --- SWAT+ --- groundwater --- modeling --- groundwater–surface water interactions --- rainwater harvesting --- climate variability --- small island developing states --- improved water governance --- national sustainable development plans --- SDG6 --- community participation --- drinking water supply --- water supply scheme --- surface water/groundwater interactions --- managed aquifer recharge --- induced riverbank filtration --- groundwater resource management --- water curtain cultivation --- surface–groundwater interaction --- water budget analysis --- Nera River --- carbonate aquifer --- recession curves --- seismic sequence --- permafrost hydrology --- Russian Arctic --- water tracks --- hydrological connectivity --- stable water isotopes --- dissolved organic carbon --- electrical resistivity tomography --- taliks --- flood --- surface and groundwater interactions --- HEIFLOW --- Managed Aquifer Recharge --- groundwater tracer --- heat transport --- surface–ground-water interactions --- infiltration basin --- groundwater hydrology --- young water fraction --- global meteoric water line --- northern Italian Apennines --- stakeholder participation --- surface water-groundwater interaction --- scenario modelling --- integrated water management --- agent-based modelling --- SimCopiapo --- water balance --- water table fluctuation method --- irrigated pastures --- deep percolation --- aquifer recharge --- clay soils --- flood irrigation --- water management --- surface water --- n/a --- groundwater-surface water interactions --- surface-groundwater interaction --- surface-ground-water interactions