A “toolbox” for biological and chemical monitoring requirements for the European Union's Water Framework Directive

Allan, Ian; Vrana, Branislav; Greenwood, R. C.; Mills, Graham A.; Roig, Benoît; Gonzalez, Catherine

doi:10.1016/j.talanta.2005.09.043

Cited by 298 publications

(169 citation statements)

References 194 publications

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“…A greedy backward selection approach was implemented, starting from the model in Equation (2). By this means, the terms with the lowest contribution to the overall Bayesian Information Criteria (BIC, objective function) were iteratively removed from the model until a stable configuration was reached.…”

Section: Multivariate and Probability Linear Modelsmentioning

confidence: 99%

“…In that manner, both water quality parameters would keep complementing to each other while major attention is given to biodegradable organic matter and not to the recalcitrant one [33,47]. Allan et al [2] acknowledged that COD, BOD 5 and BOD 5 /COD ratio are important water quality parameters to be considered, yet they stated that the combination of standard spot sampling techniques and laboratory analysis with emerging technologies (i.e., biomarkers or biosensors) would provide a more realistic overview of the impacts of contaminants on aquatic organisms.…”

Section: Response Of the Mmif To Physico-chemical Variables By Means mentioning

confidence: 99%

“…The aim is to protect and prevent a further decline of the ecological and chemical water status of European fresh and brackish watercourses. By 2027, all surface watercourses should reach 'good ecological and chemical conditions' [1,2].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Assessing the Ecological Relevance of Organic Discharge Limits for Constructed Wetlands by Means of a Model-Based Analysis

Donoso

Gobeyn

Villa-Cox

et al. 2018

Water

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Polder watercourses within agricultural areas are affected by high chemical oxygen demand (COD) and biological oxygen demand (BOD 5 ) concentrations, due to intensive farming activities and runoff. Practical cases have shown that constructed wetlands (CWs) are eco-friendly and cost-effective treatment systems which can reduce high levels of organic and nutrient pollution from agricultural discharges. However, accumulated recalcitrant organic matter, originated by in-situ sources or elements of CWs (i.e., plants or microbial detritus), limits the fulfilment of current COD discharge threshold. Thus, to evaluate its relevance regarding rivers ecosystem health preservation, we analysed the response of bio-indicators, the Multimetric Macroinvertebrate Index Flanders (MMIF) and the occurrence of organic pollution sensitive taxa towards organic pollutants. For this purpose, statistical models were developed based on collected data in polder watercourses and CWs located in Flanders (Belgium). Results showed that, given the correlation between COD and BOD 5 , both parameters can be used to indicate the ecological and water quality conditions. However, the variability of the MMIF and the occurrence of sensitive species are explained better by BOD 5 , which captures a major part of their common effect. Whereas, recalcitrant COD and the interaction among other physico-chemical variables indicate a minor variability on the bio-indicators. Based on these outcomes we suggest a critical re-evaluation of current COD thresholds and moreover, consider other emerging technologies determining organic pollution levels, since this could support the feasibility of the implementation of CWs to tackle agricultural pollution.

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Section: Multivariate and Probability Linear Modelsmentioning

confidence: 99%

Section: Response Of the Mmif To Physico-chemical Variables By Means mentioning

confidence: 99%

See 1 more Smart Citation

Assessing the Ecological Relevance of Organic Discharge Limits for Constructed Wetlands by Means of a Model-Based Analysis

Donoso

Gobeyn

Villa-Cox

et al. 2018

Water

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“…However, despite rapid and on-going developments in the area of microfluidic/lab-on-a-chip technology for chemical analyses over the last 20 years or so, and the significant requirements and opportunities which exist for autonomous environmental monitoring systems [10,11], relatively few field deployable microfluidic devices based on reagent chemistry have come to fruition.…”

Section: Examples Of Deployable Microfluidic Devicesmentioning

confidence: 99%

Development and Deployment of a Microfluidic Platform for Water Quality Monitoring

Cleary

Maher

Diamond

2013

Smart Sensors, Measurement and Instrumentation

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Abstract. There is an increasing demand for autonomous sensor devices which can provide reliable data on key water quality parameters at a higher temporal and geographical resolution than is achievable using current approaches to sampling and monitoring. Microfluidic technology, in combination with rapid and on-going developments in the area of wireless communications, has significant potential to address this demand due to a number of advantageous features which allow the development of compact, low-cost and low-powered analytical devices. Here we report on the development of a microfluidic platform for water quality monitoring. This system has been successfully applied to in-situ monitoring of phosphate in environmental and wastewater monitoring applications. We describe a number of the technical and practical issues encountered and addressed during these deployments and summarise the current status of the technology.

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“…Within the next few years, the implementation of the WFD will require a considerable additional monitoring effort to be undertaken and a wide range of 434 substances of different chemical groups to be identified. The WFD does not mandate the use of a particular set of monitoring methods, but aims at ensuring the establishment of an adequate monitoring program and encouraging the development of new technologies and more suitable methodologies allowing on-site field monitoring (Allan et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Highly Specific Biosensors to Herbicides, Based on Sensitive- and Resistant-Mutants of Microalgae

Hernández-Allica¹,

Carrera-Martínez²,

López‐Rodas³

et al. 2011

Herbicides and Environment

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A “toolbox” for biological and chemical monitoring requirements for the European Union's Water Framework Directive

Cited by 298 publications

References 194 publications

Assessing the Ecological Relevance of Organic Discharge Limits for Constructed Wetlands by Means of a Model-Based Analysis

Assessing the Ecological Relevance of Organic Discharge Limits for Constructed Wetlands by Means of a Model-Based Analysis

Development and Deployment of a Microfluidic Platform for Water Quality Monitoring

Highly Specific Biosensors to Herbicides, Based on Sensitive- and Resistant-Mutants of Microalgae

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