Turbidity and nitrate transfer in karstic aquifers in rural areas: The Brionne Basin case-study

Nebbache, S.; Feeny, Veronique; Poudevigne, Isabelle; Alard, Didier

doi:10.1006/jema.2001.0444

Cited by 18 publications

(7 citation statements)

References 23 publications

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“…Furthermore, NO 3 − showed a signi cantly positive correlation with DOC, indicating NO 3 − and DOC were discharged into the system at the same time during the rainfall events. Moreover, NO 3 − indicated strong negative correlations with turbidity and TSS through all events, although Nebbache et al (2001) revealed no clear correlation between turbidity and NO 3 − concentration, whether positive or negative during the rainfall event. These negative correlations can suggest different sources for NO 3 − , turbidity and TSS.…”

Section: Evaluation Of Correlation Among On-line and Lab Surrogate Parameters For Storm Eventsmentioning

confidence: 80%

Stormwater Monitoring Using On-line UV-Vis Spectroscopy for Surrogate Measurements of Chemical Contaminants and Compared With Microbiological Data

Huang

Chow

Shi

et al. 2021

Preprint

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Stormwater runoff contains a myriad of pollutants, including faecal microbes, and can pose a threat to urban water supplies, impacting both economic development and public health. Therefore, it is a necessity to implement a real-time hazard detection system that can collect a substantial amount of data, assisting water authorities to develop preventive strategies to ensure the control of hazards entering drinking water sources. An on-line UV-Vis spectrophotometer was applied in the field to collect real-time continuous data for various water quality parameters (nitrate, DOC, turbidity and total suspended solids) during three storm events in Mannum, Adelaide, Australia. This study demonstrated that the trends for on-line and comparative laboratory analysed samples were complimentary through the events. Nitrate and DOC showed a negative correlation with water level while turbidity and total suspended solids indicated a positive correlation with water level during the high rainfall intensity. The correlations among nitrate, DOC, turbidity, total suspended solids, and water level are the opposite during the low rainfall intensity. Nitrate, one of the main pollutants in stormwater, was investigated and used as a surrogate parameter for microbial detection. However, the microbiological data (E.coli) from captured storm events showed poor correlations to nitrate and other typical on-line parameters in this study, possibly explained by the nature of the stormwater catchment outside of rain events, where the sources of bacteria and nutrients may be physically separate until mixed during surface runoff as a result of rainfall. In addition, the poor correlations among the microbiological data and on-line parameters can be due to the different sources of bacteria and nutrients that end up into the stormwater drain.

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Section: Evaluation Of Correlation Among On-line and Lab Surrogate Parameters For Storm Eventsmentioning

confidence: 80%

Stormwater Monitoring Using On-line UV-Vis Spectroscopy for Surrogate Measurements of Chemical Contaminants and Compared With Microbiological Data

Huang

Chow

Shi

et al. 2021

Preprint

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“…Nebbache et al (2001) [96] particles transport in humid region Massei et al (2003) [97] particles transport in humid region Alberic (2004) [98] river backflooding in humid region Celico et al (2004) [99] contamination risk no SF process Aquilina et al (2006) [100] epikarst hydrology no SF process Massei et al (2006) [101] particles transport in humid region Milanovic (2007) [102] regional hydrogeology no SF process Jardani et al (2007) [103] sinkhole occurrence in humid region Fournier et al (2008) [104] particles transport no SF process Polemio et al (2009) [105] vulnerability assessment no SF process Guillaume et al (2020) [106] vulnerability assessment no SF process Exclusions have been due to two causes (see third column of Table A1). In essence, the 264 above listed articles dealing with cases in karst areas with no water scarcity, or in which no 265 SF processes are described.…”

Section: Author (S) and Year Main Objective Exclusion Causementioning

confidence: 99%

Sinkhole Flooding and Aquifer Recharge in Arid to Dry Sub-Humid Regions: A Systematic Review

Rose¹

2021

Preprint

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Sinkhole flooding is an essential hydrological process to recharge karst aquifer in arid to dry sub-humid regions. On the other hand, the increase of rain extremes is one of the major consequences of the global warming, together with the expansion of drylands. Thus, appropriate runoff regulation in endorheic karst basins in order to reduce the risk of flooding and improve the quantity and quality of the water drained by sinkholes will be more and more crucial. With these premises, a systematic review was performed by using WoS engine to infer the best practices for the karst water management in regions actually or potentially affected by water scarcity. Hydrological models are essential to manage the consequences of climate change on karst water resource, however the review shows that providing the tools necessary for reliable modeling is still challenging. Finally, due to the intrinsic vulnerability of the karst aquifers, pollution reduction and wastewater recycling policy will play key role in the next decades.

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“…Indeed the commonest disturbances that alter ecosystem integrity are now anthropogenic. Stream regulation for example reduces flow amplitude, induces temperature changes, alters material transport and major biophysical patterns (Stanford et al ., 1996; Ward, 1998), while agricultural and industrial activities are an important source of disturbance to nutrient cycling and contaminant introduction (Nebbache et al ., 2001; Vitousek et al ., 1997). As most of these activities (including management) address the landscape level, landscapes have increasingly become the relevant level of observation for analysing risks to ecosystem integrity.…”

Section: Contribution Of Landscape Ecological Concepts To Risk Assessmentioning

confidence: 99%

Riverine landscape dynamics and ecological risk assessment

Leuven

Poudevigne

2002

Freshwater Biology

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1. The aim of ecological risk assessments is to evaluate the likelihood that ecosystems are adversely affected by human‐induced disturbance that brings the ecosystem into a new dynamic equilibrium with a simpler structure and lower potential energy. The risk probability depends on the threshold capacity of the system (resistance) and on the capacity of the system to return to a state of equilibrium (resilience). 2. There are two complementary approaches to assessing ecological risks of riverine landscape dynamics. The reductionist approach aims at identifying risk to the ecosystem on the basis of accumulated data on simple stressor–effect relationships. The holistic approach aims at taking the whole ecosystem performance into account, which implies meso‐scale analysis. 3. Landscape patterns and their dynamics represent the physical framework of processes determining the ecosystem's equilibrium. Assessing risks of landscape dynamics to riverine ecosystems implies addressing complex interactions of system components (e.g. population dynamics and biogeochemical cycles) occurring at multiple scales of space and time. 4. One of the most important steps in ecological risk assessment is to establish clear assessment endpoints (e.g. vital ecosystem and landscape attributes). Their formulation must recognise that riverine ecosystems are dynamic, structurally complex and composed of both deterministic and stochastic components. 5. Remote sensing (geo)statistics and geographical information systems are primary tools for quantifying spatial and temporal components of riverine ecosystem and landscape attributes. 6. The difficulty to experiment at the riverine landscape level means that ecological risk management is heavily dependent on models. Current models are targeted towards simulating ecological risk at levels ranging from single species to habitats, food webs and meta‐populations to ecosystems and entire riverine landscapes, with some including socio‐economic considerations.

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Turbidity and nitrate transfer in karstic aquifers in rural areas: The Brionne Basin case-study

Cited by 18 publications

References 23 publications

Stormwater Monitoring Using On-line UV-Vis Spectroscopy for Surrogate Measurements of Chemical Contaminants and Compared With Microbiological Data

Stormwater Monitoring Using On-line UV-Vis Spectroscopy for Surrogate Measurements of Chemical Contaminants and Compared With Microbiological Data

Sinkhole Flooding and Aquifer Recharge in Arid to Dry Sub-Humid Regions: A Systematic Review

Riverine landscape dynamics and ecological risk assessment

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