Impacts of climate change on surface water quality in relation to drinking water production

Delpla, Ianis; Jung, Aude-Valérie; Baurès, Estelle; Clément, Michel; Thomas, Olivier

doi:10.1016/j.envint.2009.07.001

Cited by 839 publications

(442 citation statements)

References 99 publications

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“…Previous studies have shown that shallow-eutrophic lakes are likely to be highly vulnerable to climate change (Delpla et al 2009;Qin et al 2010). In this study, the surface air temperature was projected to increase by about 4 C during 2070À2099 in the Lake Taihu Basin.…”

Section: Discussionmentioning

confidence: 93%

“…Several direct connections between algal blooms and causative factors have been recognized in previous research, including nutrient over-enrichment and undesirable hydrodynamic conditions. It is now broadly accepted among researchers that climate change has potential impacts, not only on water availability and hydrological risks (Jiang et al 2013a;van Vliet et al 2013), but also on physical, chemical, and biological processes in aquatic ecosystems, especially in eutrophic water bodies (Delpla et al 2009;Qin et al 2010;Islam et al 2012;Paerl & Paul 2012;Zhang et al 2012a;Park et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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A coupled modeling approach to predict water quality in Lake Taihu, China: linkage to climate change projections

Tang

Jiang

et al. 2015

Journal of Freshwater Ecology

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Climate change is expected to impact water quality and ecosystem health in water bodies. In this study, a modeling framework was developed to assess the response of environmental variables to climate change scenarios in Lake Taihu, China. A coupled hydrodynamic-water quality-sediment flux model was employed to simulate water quality processes under future climate scenarios projected from a general circulation model (GCM) forced by the Representative Concentration Pathway 8.5 (RCP 8.5). The results showed that the climate change impacted physico-chemical parameters and biological interactions in Lake Taihu. The annual average water temperature increased by 0.96, 2.09, and 3.2 C by the 2020s, 2050s, and 2080s, respectively. Daily temperature stratification tended to occur earlier and the period of stratification increased, especially in summer during calm wind conditions. The sediment flux increased and dissolved oxygen (DO) concentration decreased with climate change. Additionally, climate change increased the onset time, duration, and areas of algal blooms. The results showed that the blooms activation time advanced approximately six days per decade. The onset time of algal blooms of 2080s was in February and March and the elevated concentration of chlorophyll a lasted until late autumn in the west lake region. The chlorophyll a concentration in summer did not increase substantially (about 10À15 mg/L). Overall, water management strategies and ecological restoration plans in Lake Taihu, mainly based on nutrient load reduction and hydrodynamic modification, should incorporate anticipated effects of climate change.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

A coupled modeling approach to predict water quality in Lake Taihu, China: linkage to climate change projections

Tang

Jiang

et al. 2015

Journal of Freshwater Ecology

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“…For example, since the end of the last century, various reports have shown considerable DOC increase in the freshwaters of Northern and Central Europe (Hejzlar et al, 2003;Worrall et al, 2004;Evans et al, 2005;Monteith et al, 2007). These observed changes have been linked to such factors as increase of air temperature, rainfall intensity and atmospheric carbon dioxide, or a decline in acid deposition, although their detailed role are still under debate (Delpla et al, 2009). Recent scientific developments in freshwater ecology have highlighted the actual and predicted impact of climate change also on the increase of phosphorus loadings to lakes (Jeppesen et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

The influence of glucose and peat extract additions on the spring recruitment of Gonyostomum semen from the sediments

2014

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The effect of two various forms of DOC on the Gonyostomum semen recruitment from sediments was conducted under experimental laboratory conditions. We tested the hypothesis that DOC is a factor enhancing spring recruitment of the species by exposing sediments from a humic lake with a 17-year bloom history, to three various DOC additions (two solutions of glucose and one solution of a peat extract). Sediments and lake water were incubated for 14 days at 16°C, in 14:10 h light:dark cycle, with germling and adult cell abundance ascertained in the water every third day, and water parameters every seventh day. Our important findings were that (1) Gonyostomum recruitment was uneven and the period of germination was relatively short; (2) all treatments significantly affected germling occurrence; however, sugar-derived DOC seemed to suppress the recruitment, whereas peat extract improved it. Due to the additional phosphorus load in peat treatment (against phosphorus-free sugar treatments), it is likely that it played a major role in the observed differences, however, our results did not exclude the potential role of peatderived DOC forms. In conclusion, we proposed that Gonyostomum expansion is supported by enhanced recruitment from sediment seed banks related to water chemistry alterations, driven by the climate change.

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“…SM samples were taken in a period with almost no precipitation (0 mm); they are the most contaminated, likely due to low precipitation in this dry season which suggests a higher concentration of pollutants in the water of river. The increase in temperature, as observed in summer, promotes water evaporation and can elevate the dissolution of substances in water, including some metals (Delpla et al, 2009;Mazzeo and Marin-Morales, 2015). However, much precipitation occurred in the winter seasons (72.14 mm in January and 90.93 mm in February 2015.)…”

Section: Physico-chemical Analysesmentioning

confidence: 99%

Efficacy of Avena Sativa L. And Trifolium Alexandrinum L. Test System for Detecting the Genotoxic and Phytotoxic Potential of Water Pollution

Khelif¹

2016

Appl Ecol Env Res

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Abstract. The Reghaïa Lake (Algiers, Algeria) is contaminated by the untreated industrial effluents discharge of Reghaïa-Rouiba industrial park, via El Biar River. The present report is the first study which addresses the effects of industrial wastewaters rejected into the lake in light of genotoxic and phytotoxic effects, using Avena sativa L. and Trifolium alexandrinum L. test system. The wastewaters were collected seasonally at the mouth of El Biar River and analyzed using chemical analysis and biological assays, including the germination and root elongation inhibition test, mitotic index and micronucleus test. Results showed that samples collected during the summer season (SM) were high contaminated by heavy metals than that of the winter season (WN). Furthermore, the WN samples have relatively low phytotoxicity on A. sativa seed germination and T. alexandrinum root elongation (no EC50 was determined). Genotoxicity of the SM samples is evident in A. sativa by a significant depression of mitotic activity, induction of several chromosomal aberrations and occurrence of micronuclei in T. alexandrinum. All the results indicated that the samples from the El Biar discharging river in Reghaïa Lake exhibited genotoxicity and argue for the possible use of A. sativa and T. alexandrinum plant system for genotoxicity assays.

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Impacts of climate change on surface water quality in relation to drinking water production

Cited by 839 publications

References 99 publications

A coupled modeling approach to predict water quality in Lake Taihu, China: linkage to climate change projections

A coupled modeling approach to predict water quality in Lake Taihu, China: linkage to climate change projections

The influence of glucose and peat extract additions on the spring recruitment of Gonyostomum semen from the sediments

Efficacy of Avena Sativa L. And Trifolium Alexandrinum L. Test System for Detecting the Genotoxic and Phytotoxic Potential of Water Pollution

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