Yazar "Tavşanoğlu, Ülkü Nihan" seçeneğine göre listele

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  • Küçük Resim
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    A review of plastic pollution in aquatic ecosystems of Turkey
    (Springer Heidelberg, 2022) Çevik, Cem; Kideys, Ahmet Erkan; Tavşanoğlu, Ülkü Nihan; Kankılıç, Gökben Başaran; Gündoğdu, Sedat
    Turkey is one of the major plastic pollution sources in the Mediterranean and the Black Sea. This review summarizes present information, data, and legislation on plastic pollution in Turkish aquatic ecosystems. According to results derived from reviewed studies, both macro- and microplastic pollutions were documented in Turkish aquatic ecosystems. Most of the studies on plastic pollution in Turkish waters were performed in the marine environment while only four were conducted in freshwater environments. Spatially, the majority of these studies, which were on levels in the marine environment, were conducted on the northeastern Mediterranean coasts of Turkey, especially Iskenderun and Mersin Bays. Additional studies were carried out on either the ingestion/presence/impact of microplastics by/to aquatic organisms or the entanglement of marine organisms in plastics. There were also studies assessing the microplastic content of commercial salt, and another has reported microplastic presence in traditional stuffed mussels sold in Turkish streets. Some studies were conducted on microplastic presence and/or their removal in wastewater treatment plants in Mersin, Adana, Mugla, and Istanbul cities. Macro- and microliter loading from a few Turkish rivers to the sea was also estimated. All these investigations indicate that Turkish aquatic environments have significant plastic pollution problems, which were also underlined by the legislative studies. The need for further studies in this field still exists, especially in freshwater environments.
  • Küçük Resim
    Öğe
    Assessment of heavy metal pollution with different indices in Sureyyabey dam lake in Turkey
    (Taylor & Francis Ltd, 2023) Erdoğan, Şeyda; Kankılıç, Gökben Başaran; Seyfe, Merve; Tavşanoğlu, Ülkü Nihan; Akın, Şenol
    The current study, for the first time, focused on the determination of pollution levels and spatial distribution of heavy metals in Sureyyabey Dam Lake which is an important water source for the surrounding area. Water and sediment samples were taken seasonally from six sites exposed to different anthropogenic impacts. The most enriched elements in the Dam Lake were As, Cd, Mo, and Pb. In all sampling sites, the average heavy metal concentrations indicated low risk except for Cd and Pb which were classified in the moderate ecological risk class. Overall, the ecological risk was low for one site (S3) because of the far distance from the residential areas, while the ecological risk of the other stations was moderate. According to water analysis results, the aquatic life criteria could not be met for Zn, Cu, Cr, and Hg in Sureyyabey Dam Lake. Although the dam lake is used only for irrigation purposes, the Sureyyabey Dam Lake water is not suitable for drinking according to the metal limit values of the World Health Organisation. The results of the current study will contribute to the awareness of local authorities by using several indices on taking the necessary precautions.