Investigating a surface water quality monitoring approach for QwaQwa, South Africa, by combining biological in vitro tests and chemical analyses DOI Creative Commons
Marinda Avenant,

Hilmar Börnick,

Stephanie Graumnitz

et al.

Frontiers in Water, Journal Year: 2024, Volume and Issue: 6

Published: July 1, 2024

Introduction Water quality assessment is a fundamental requirement for comprehensive water management. Access to not exclusively quantitative issue, as human activities often lead negative impacts on due pollution. This results in need the systematic monitoring of bodies surveil ongoing pollution dynamics and, if needed, facilitate implementation suitable solutions Methods To that effect, March 2022 and July 2023, we conducted two sampling campaigns four headwater streams QwaQwa, South Africa, assess under high (summer) low (winter) flow conditions. The overarching aim was support local decision-makers with relevant information semirural less studied area. Beside hydrological characterization catchment, which drains mountainous areas around Phuthaditjhaba (the main town region), physicochemical biological were conducted, including vitro tests detecting endocrine disruption, dioxin-like impacts, genotoxic potentials water. Results elemental analysis showed at several sites, Al, Cu, Mn, Fe, Zn above Target-Water-Quality-Range (TWQR) aquatic ecosystems Mn additionally TWQR domestic use. Interestingly, organic micropollutants (OMPs) revealed region incidence HIV infections, given occurrence drugs efavirenz, its transformation product 8-OH-efavirenz nevirapine, among other micropollutants. Possibly, signals from disruption are also induced by detected Our ultimately show even though anthropogenic increase upstream downstream, none sites without concern. indicates urgent measures these this region.

Language: Английский

Investigating a surface water quality monitoring approach for QwaQwa, South Africa, by combining biological in vitro tests and chemical analyses DOI Creative Commons
Marinda Avenant,

Hilmar Börnick,

Stephanie Graumnitz

et al.

Frontiers in Water, Journal Year: 2024, Volume and Issue: 6

Published: July 1, 2024

Introduction Water quality assessment is a fundamental requirement for comprehensive water management. Access to not exclusively quantitative issue, as human activities often lead negative impacts on due pollution. This results in need the systematic monitoring of bodies surveil ongoing pollution dynamics and, if needed, facilitate implementation suitable solutions Methods To that effect, March 2022 and July 2023, we conducted two sampling campaigns four headwater streams QwaQwa, South Africa, assess under high (summer) low (winter) flow conditions. The overarching aim was support local decision-makers with relevant information semirural less studied area. Beside hydrological characterization catchment, which drains mountainous areas around Phuthaditjhaba (the main town region), physicochemical biological were conducted, including vitro tests detecting endocrine disruption, dioxin-like impacts, genotoxic potentials water. Results elemental analysis showed at several sites, Al, Cu, Mn, Fe, Zn above Target-Water-Quality-Range (TWQR) aquatic ecosystems Mn additionally TWQR domestic use. Interestingly, organic micropollutants (OMPs) revealed region incidence HIV infections, given occurrence drugs efavirenz, its transformation product 8-OH-efavirenz nevirapine, among other micropollutants. Possibly, signals from disruption are also induced by detected Our ultimately show even though anthropogenic increase upstream downstream, none sites without concern. indicates urgent measures these this region.

Language: Английский

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