Abstract
AbstractWetlands are important ecosystems that provide biodiversity and buffer aquatic ecosystems. This study monitored the quality of surface water in the Efteni wetland system in Turkey, which is intertwined with the Melen River. Basic water quality parameters and 26 different trace elements were analysed by standard methods (USEPA method 200.7 and ISO 11885) using inductively coupled plasma in water samples taken from inflows, an internal lake and the outlet of the wetland in different seasons (before, during and after the flowering) in 2011. Trace element concentrations differed between tributaries flowing to and within the wetland. Natural attenuation was observed for health risk elements such as molybdenum, copper, nickel, boron and vanadium in all seasons. Most trace elements were observed at their lowest levels during the flowering period. These results confirm that the Efteni wetland acts as a retention zone and, due to its important location in the River Melen watershed, warrants protection.
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