Study of Electric Conductivity of Urban Stream Water Polluted with Municipal Effluents

Chusov, Alexander; Bondarenko, Ekaterina; Andrianova, M. Yu.

doi:10.4028/www.scientific.net/amm.641-642.1172

Cited by 17 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The PCA analysis showed that distance from the study sites to built-up areas and conductivity were the main factors contributing to their separation. The significance of distance from the study sites to built-up areas and increasing of conductivity was already highlighted by other authors (Chusov et al 2014;Moreyra and Padovesi-Fonseca 2015;Prescott and Eaton 2018). According to some authors (Novikmec et al 2016) proportion of urban land was positively related with water conductivity, i.e., water ecosystems with high proportion of urban areas in their catchments were characterized by high values of conductivity.…”

Section: Environmental Difference Between Rural and Urban Samplessupporting

confidence: 55%

Main macroinvertebrate community drivers and niche properties for characteristic species in urban/rural and lotic/lentic systems

et al. 2021

View full text Add to dashboard Cite

The effect of urbanization is often reflected both in lotic and lentic habitats, through changes in diversity and structural and compositional changes in macroinvertebrate communities. In this study, we focused on macroinvertebrate assemblage in lotic and lentic ecosystems of the Krąpiel River catchment area (NW Poland) with the following aims: (1) to determine the main driver in structuring lotic and lentic macroinvertebrate communities and the factors that influence them in urban versus rural landscapes; (2) to test whether the diversity of macroinvertebrate assemblages in urban lotic/lentic ecosystems is lower than that in rural landscapes; (3) to identify characteristic macroinvertebrate species for urban and rural lotic/lentic ecosystems; to (4) determine species tolerance ranges and species optimums, with special emphasis on characteristic “urban” and “rural” species. Distance from study sites to built-up areas and conductivity were the main factors contributing to the separation of urban vs. rural habitats. For lotic sites, temperature, the percentage of built-up area, insolation, and oxygen concentration were the main factors significantly associated with changes in community composition. For lentic sites, insolation, temperature, and BOD5 were recognized as the main factors which are significantly associated with changes in community composition. The results for lentic habitats were as expected: average species richness was higher in rural than in urban habitats. The characteristic species for each of the four habitat groups included Mideopsis orbicularis for Lentic rural habitats; Hygrobates longipalpis for Lotic rural habitats; Piona sp. for Lentic urban habitats; Mideopsis crassipes for Lotic urban habitats. Hygrobates longipalpis and Piona sp. were at the opposite sides with respect to the degree of urbanization. Result of this investigation has shown that the impact of urbanization and consequently the implementation of conservation measures should be viewed separately within the lentic and lotic gradient.

show abstract

Section: Environmental Difference Between Rural and Urban Samplessupporting

confidence: 55%

Main macroinvertebrate community drivers and niche properties for characteristic species in urban/rural and lotic/lentic systems

et al. 2021

View full text Add to dashboard Cite

show abstract

“…(2020) 2:1788 | https://doi.org/10.1007/s42452-020-03572-7 Thus, the mean conductivity values for water from Ureje and Awedele from this study indicate augmented levels of nutrients, salts and impurities. In other studies, increased conductivity of surface water downstream canalization outlets that discharge drainage and stormwaters from urban settlements have been reported [19,34]. Observations for heavy metals in surface water samples revealed that all metals measured were within WHO specified limits, except Pb, Cd, Fe and Mn in surface water of both rivers which were above the recommended limits.…”

Section: Surface Water Quality Across Sitesmentioning

confidence: 67%

Watershed land use, surface water vulnerability and public health risks of two urban rivers, Ado-Ekiti, South-West Nigeria

et al. 2020

View full text Add to dashboard Cite

The disruption of watersheds due to indiscriminate land use and urban development increases the vulnerability of adjacent surface water to contaminants of anthropogenic origin. This study assessed the relationship between disrupted watershed, drinking water quality and health risks of two urban rivers: Ureje and Awedele, Ado-Ekiti (Nigeria). Monthly samples of surface water (n = 60, per river) collected across seasons for 6 months (January-June, 2017) were analyzed for twenty-nine drinking water parameters including metals, nutrients (phosphates and nitrates) and pathogens using standard methods. The difference in the mean concentration of parameters between rivers was determined using t test, while the association between change in seasons and water quality parameters of both rivers was highlighted using principal component analysis (PCA). The risk was assessed based on on-site inspection studies and water sample analysis using WHO semiquantitative risk matrix approach. Inferences on surface water vulnerability were made from percentage built-up areas, riparian cover and stream order within each watershed. Mean concentrations of Pb, Cd, Fe, Mn, nitrates and coliform presence in samples from Awedele river (0.02 ± 0.00; 0.005 ± 0.001; 5.44 ± 1.33; 0.81 ± 0.03; 58.03 ± 0.10 mg/L; 1.2 × 10 6 MPN/100 ml, respectively) and Cd, Fe, Mn, nitrates and coliform in samples from Ureje river (0.004 ± 0.0001; 4.96 ± 0.12; 0.54 ± 0.01; 62.08 ± 0.02 mg/L; 1.6 × 10 3 MPN/100 ml, respectively) were above the permissible limits of WHO drinking guidelines. Risk assessment revealed urban runoff and unsanitary practices within the watershed as possible hazardous events which may compromise water quality of both rivers, while the PCA associated greater likelihood of surface water deterioration with areas of a higher percentage built-up area and lesser riparian density and width. We infer that disrupted watersheds and greater riparian depletion due to urbanization increased chances of metals and pathogens incidence that negatively impacts water. A twofold strategy of policy protection of watersheds and public health education on sourcing polluted surface water is recommended.

show abstract

“…In natural streams, conductivity tends to be low in headwater reaches and then increase in downstream reaches, especially when streams pass through urban areas ( Chusov, Bondarenko & Andrianova, 2014 ). However, previous studies of effluent-fed streams have reported elevated conductivities near outfalls and then relatively stable values downstream ( Chen et al, 2009 ; Prat et al, 2013 ; Matamoros & Rodríguez, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Seasonal and longitudinal water quality dynamics in three effluent-dependent rivers in Arizona

Hamdhani

Eppehimer

Quanrud

et al. 2023

PeerJ

View full text Add to dashboard Cite

Effluent-fed streams, which receive inputs from wastewater treatment plants, are becoming increasingly common across the globe as urbanization intensifies. In semi-arid and arid regions, where many natural streams have dried up due to over extraction of water, many streams rely completely on treated effluent to sustain baseflow during dry seasons. These systems are often thought of as ‘second-class’ or highly disturbed stream ecosystems, but they have the potential to serve as refuges for native aquatic biota if water quality is high, especially in areas where few natural habitats remain. In this study, we investigated seasonal and longitudinal water quality dynamics at multiple sites across six reaches of three effluent-dependent rivers in Arizona (USA) with the objective (1) to quantify changes in effluent water quality due to distance traveled and season/climate and (2) to qualify whether water quality conditions in these systems are sufficient to support native aquatic species. Study reaches ranged in length from 3 to 31 km and in geographic setting from low desert to montane conifer forest. We observed the lowest water quality conditions (e.g., elevated temperature and low dissolved oxygen) during the summer in low desert reaches, and significantly greater natural remediation of water quality in longer vs. shorter reaches for several factors, including temperature, dissolved oxygen and ammonia. Nearly all sites met or exceeded water quality conditions needed to support robust assemblages of native species across multiple seasons. However, our results also indicated that temperature (max 34.2 °C), oxygen levels (min 2.7 mg/L) and ammonia concentrations (max 5.36 mg/L N) may occasionally be stressful for sensitive taxa at sites closest to effluent outfalls. Water quality conditions may be a concern during the summer. Overall, effluent-dependent streams have the capacity to serve as refuges for native biota in Arizona, and they may become the only aquatic habitat available in many urbanizing arid and semi-arid regions.

show abstract

Study of Electric Conductivity of Urban Stream Water Polluted with Municipal Effluents

Cited by 17 publications

References 1 publication

Main macroinvertebrate community drivers and niche properties for characteristic species in urban/rural and lotic/lentic systems

Main macroinvertebrate community drivers and niche properties for characteristic species in urban/rural and lotic/lentic systems

Watershed land use, surface water vulnerability and public health risks of two urban rivers, Ado-Ekiti, South-West Nigeria

Seasonal and longitudinal water quality dynamics in three effluent-dependent rivers in Arizona

Contact Info

Product

Resources

About