Investigation of Acute Toxicity of Four Heavy Metal (Pb, Co, Ba, Cr) Salts in the Water Frog (Rana ridibunda Pallas, 1771)

Öz

One of the dangerous chemical of water pollution is heavy metals. Heavy metals are trace amounts in aquatic ecosystems; atmospheric activities, erosion of geological structures or anthropogenic effects increase in water concentrations. In this study four different heavy metal salts (Pb, Co, Ba, Cr) of the 96-hour LC50 value calculated abundantly observed in tadpole in suitable habitat in Turkey (Pelophylax ridibundus Pallas, 1771) were determined. The experiments were carried out in containers containing different concentrations of metal salt in the known test water of the chemical structure. The experiments were carried out in 1 liter containers at 0, 1, 10, 50, 100 and 200 mg/L heavy metal concentrations.The data obtained at the end of the study were evaluated by using probit analysis method; as a result, the LC50 values for water tadpoles for 96 hours were Pb 99.702; Co 69.783; Ba 62.737; Cr 30.002; mg/L respectively.

Anahtar Kelimeler

• Pelophylax ridibundus
• tadpole
• LC50

Su Kurbağasında İribaşlarında (Rana ridibunda Pallas, 1771) Dört Ağır Metal ( Pb, Co, Ba, Cr) Tuzunun Akut Toksisitesinin Araştırılması

Öz

Su kirliliğini oluşturan tehlikeli etkenlerden biri de ağır metallerdir. Ağır metaller sucul ekosistemlerde eser miktarda bulunurken atmosferik faaliyetler, jeolojik yapıların erozyonu veya antropojenik faktörler sonucu sudaki konsantrasyonlarında artış görülmektedir. Tarımsal ve endüstriyel kökenli dört farklı ağır metal (Pb, Co, Ba, Cr) tuzunun 96 saatlik LC50 değeri iribaşlarda (Rana ridibunda Pallas, 1771) tespit edilmiştir.  Deneyler bir seri halinde yürütülmüş ve akut toksisiteyi belirlemek için toplam 200 iribaş kullanılmıştır. Lethal doz deneyler 1 litrelik PVC kaplar içinde 0 ppm, 1 ppm, 10 ppm, 50 pmm, 100 ppm ve 200 ppm ağır metal konsantrasyonlarında gerçekleştirilmiştir.. Ağır metal araştırmalarından elde edilen veriler, probit analiz istatistik metodu kullanılarak değerlendirildi ve su iribaşlar için 96 saat LC50 değeri Cr 30,002; Ba 62,737; Co 69.783; Pb 99,702 olarak belirlenmiştir.

Anahtar Kelimeler

• Pelophylax ridibundus
• iribaş
• LC50

Kaynakça

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