Seyhan Nehri’nde DEET (N, N-dietil-m-toluamid) pestisitinin bulunurluğu ve çevresel risk değerlendirmesi

Böcek kovucu DEET, dünyadaki çok çeşitli ülkelerde suda bulunan en yaygın organik kimyasal kirleticilerden biridir. Bu çalışmada, Aralık 2016 ile Kasım 2017 tarihleri arasında, Seyhan Nehri'ndeki 7 istasyondan mevsimsel olarak yüzey suyu örnekleri toplanmıştır. Seyhan Nehri'ndeki DEET konsantrasyonları 18,55-334,71 ng/L arasında tespit edilmiştir. Yedi örnekleme istasyonunun tamamında DEET tespit edilmiş olup, tespit frekansı % 100’dür. Sonbaharda elde edilen sonuçlar yaz aylarına göre daha yüksek bulunmuştur. Çevresel risk değerlendirmesine göre Seyhan Nehri'ndeki DEET'in çevresel riski yoktur (ölçülen tüm RQ değerleri 0.01'den düşük bulunmuştur).

Anahtar Kelimeler:

pestisit, böcek kovucu, Seyhan Nehri, su kirliliği, çevresel risk değerlendirmesi

Occurrence and environmental risks assessment of DEET (N,N-diethyl-m-toluamide) pesticide in Seyhan River, Turkey

The insect repellent DEET is one of the most common organic chemical pollutants in water in a wide range of countries around the World. In this study, surface water samples were collected seasonally, from 7 stations in Seyhan River, following a period between December 2016 and November 2017. The DEET concentrations in Seyhan River were detected between 18.55-334.71 ng/L. DEET was detected in all seven sampling stations and detection frequency was 100%. Results obtained in autumn were higher than in summer. According to the environmental risk assessment, DEET in the Seyhan River, has no environmental risk (all measured RQ values were lower than 0.01).

Keywords:

pesticide, insect repellent, Seyhan River, water pollution, environmental risk assesment,

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