Seasonal and spatial variations of source and drinking water quality in small municipal systems of two Canadian regions

Scheili, A.; Rodriguez, Manuel J.; Sadiq, Rehan

doi:10.1016/j.scitotenv.2014.11.069

Cited by 44 publications

(8 citation statements)

References 35 publications

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“…Recent studies show that variables such as raw water source, temperature, pipeline materials, nutrients availability and disinfection methods affect into the microbial dynamics inside the distribution networks (Scheili et al, 2015;Delafont et al, 2016). Comparison between the systems in present study confirmed that each DWDS is unique.…”

Section: Discussionsupporting

confidence: 76%

Drinking Water Quality in Distribution Systems of Surface and Ground Waterworks in Finland

Ikonen¹,

Hokajärvi²,

Heikkinen³

et al. 2017

Journal of Water Security

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Abstract. Physico-chemical and microbiological water quality in the drinking water distribution systems (DWDSs) of five waterworks in Finland with different raw water sources and treatment processes was explored. Water quality was monitored during four seasons with on-line equipment and bulk water samples were analysed in laboratory. Seasonal changes in the water quality were more evident in DWDSs of surface waterworks compared to the ground waterworks and artificially recharging ground waterworks (AGR). Between seasons, temperature changed significantly in every system but pH and EC changed only in one AGR system. Seasonal change was seen also in the absorbance values of all systems. The concentration of microbially available phosphorus (MAP, μg PO₄-P/l) was the highest in drinking water originating from the waterworks supplying groundwater. Total assimilable organic carbon (AOC, μg AOC-C/l) concentrations were significantly different between the DWDSs other than between the two AGR systems. This study reports differences in the water quality between surface and ground waterworks using a wide set of parameters commonly used for monitoring. The results confirm that every distribution system is unique, and the water quality is affected by environmental factors, raw water source, treatment methods and disinfection.

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Section: Discussionsupporting

confidence: 76%

Drinking Water Quality in Distribution Systems of Surface and Ground Waterworks in Finland

Ikonen¹,

Hokajärvi²,

Heikkinen³

et al. 2017

Journal of Water Security

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“…The spatial dependencies between land use showed diversity within the whole catchment (Tu and Xia 2008 ; Phung et al 2015 ). Studies of relations in a spatial system are important due to the recognition of spatio-temporal patterns and the associated sources of pollution (Su et al 2011 ; Scheili et al 2015 ; Thapa et al 2017c ). At the research sampling site located close to the sandstone mine, they decrease with the occurrence of a greater concentration of TSS.…”

Section: Discussionmentioning

confidence: 99%

Evaluating the applicability of MESS (matrix exponential spatial specification) model to assess water quality using GIS technique in agricultural mountain catchment (Western Carpathian)

Halecki

Stachura

Fudała

et al. 2018

Environ Monit Assess

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The formation of many sources of pollution in a short period of time is due to mountain soil erosion by water. One of the major mechanisms decisive in the intensification of such erosion is the loosening of soil material on the slope. Water quality studies show the impact of diversified spatial management and allow making the right decisions in environmental management in mountain areas with high variability of use and land cover. The research undertaken as part of the paper was carried out in order to determine the dependency between total suspended solids (TSS) and the physicochemical parameters of surface waters and the amount of soil losses in the use structure within the mountain catchment. The paper focused on the frequency of phenomena in time and the possibility of stopping the surface runoff on the slope and on the soil’s susceptibility to water erosion. The dependencies between multipoint sampling and the concentration of material washed off the slope due to precipitation were verified with a multivariate analysis. Sampling took place in hydrometric sections, and during small floods, in the waterbed cross section. Research shows that such sampling is the basis for the calculation of the transported load, reflecting the average variation in concentration. The variation in the volume of the load from the individual parts of the catchment was assessed by the spatial autoregressive model. It was found that the use of river basin areas affects water chemistry. Water reservoirs are an important ecological barrier for the migration of nitrate nitrogen (N-NO3) and phosphate phosphorus (P-PO4), which is marked by changes in the growing season. Water along the sections of the river near the quarry with a high degree of sodding showed good quality condition. Despite significant differences between measurement sampling sites, high total dissolved solid (TDS) values were found in communities adjacent to forests and meadows. However, the highest electrical conductivity (EC) and TSS concentrations were found in the interface with cultivated areas. Biogenic indices showed variation depending on the way the adjacent areas were used. GIS linked spatial variables with the formation of water pollution. The analysis of spatial autoregression pointed to the impact of arable land. Moreover, the analysis of spatial autoregression with the MESS function designated a connection between agricultural land use and nitrite nitrogen (N-NO2), EC, TSS, and dissolved oxygen (DO). Graphical abstractᅟ Electronic supplementary materialThe online version of this article (10.1007/s10661-018-7137-x) contains supplementary material, which is available to authorized users.

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“…Uyak et al indicated a higher level of available TOC will provide more THMs. Scheili et al demonstrated rate of THMs and HAAs formation increase as TOC increases [10][11][12][13][14].…”

Section: Effect Of Water Toc On the Formation Of Dbpsmentioning

confidence: 99%

Factors Affecting on Formation of DBPs in Greater Cairo Drinking Water

Souaya¹,

Abdullah²,

Mossad³

2015

Organic Chem Curr Res

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Seasonal and spatial variations of source and drinking water quality in small municipal systems of two Canadian regions

Cited by 44 publications

References 35 publications

Drinking Water Quality in Distribution Systems of Surface and Ground Waterworks in Finland

Drinking Water Quality in Distribution Systems of Surface and Ground Waterworks in Finland

Evaluating the applicability of MESS (matrix exponential spatial specification) model to assess water quality using GIS technique in agricultural mountain catchment (Western Carpathian)

Factors Affecting on Formation of DBPs in Greater Cairo Drinking Water

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