Variation Of Ge Concentration In Some Coniferous Species Over Long Years

Öz

: Increasing natural events and human activities in the last century led to the release of an excessive amount of inorganic and organic pollutants into the environment and natural ecosystems. One of the most important pollutants disrupting the balance between living organisms in the ecosystem is metals. Heavy metals, in particular, are transported to the top levels of the food chain and cause harm to the living organisms. Therefore, among the pollutants, heavy metals have a specific ecological importance. Heavy metals are carcinogenic and, due to their bioaccumulative, non-degradable, and refractory characteristics, they pose serious health risks to living systems and the environment. Pinus pinaster (Pp), Cupressus arizonica (Cpa), Picea orientalis (Po), Cedrus atlantica (Cda) and Pseudotsuga menziesii (Pm) species were examined in the present study. Changes in Ge concentrations in these species by directions and organs in the periods 1988-1992 and 2013-2017 were determined. As a result of the study, the lowest Ge concentration was found in the west in the Pb (872.8) and the highest one in the north in the Cpa (6367.5). The present study revealed that Ge accumulation in the plant species analyzed here is at a considerably high level. These results suggest that Ge pollution in the air is very high.

Anahtar Kelimeler

• Germanium
• Cedrus atlantica
• Pinus pinaster
• Heavy Metals

Bazı İğne Yapraklı Türlerde Uzun Yıllar Boyunca Ge Konsantrasyonunun Değişimi

Öz

Son yüzyılda artan doğa olayları ve insan faaliyetleri, aşırı miktarda inorganik ve organik kirleticinin çevreye ve doğal ekosistemlere salınmasına neden olmuştur. Ekosistemde canlı organizmalar arasındaki dengeyi bozan en önemli kirleticilerden biri metallerdir. Özellikle ağır metaller besin zincirinin en üst basamaklarına taşınarak canlı organizmalara zarar vermektedir. Bu nedenle kirleticiler arasında ağır metallerin özel bir ekolojik önemi vardır. Ağır metaller kanserojendir ve biyoakümülatif, parçalanmayan ve dirençli özellikleri nedeniyle canlı sistemleri ve çevre için ciddi sağlık riskleri oluştururlar. Bu çalışmada Pinus pinaster (Pp), Cupressus arizonica (Cpa), Picea orientalis (Po), Cedrus atlantica (Cda) ve Pseudotsuga menziesii (Pm) türleri incelenmiştir. Bu türlerdeki Ge konsantrasyonlarının 1988-1992 ve 2013-2017 dönemlerinde yönlere ve organlara göre değişimleri belirlenmiştir. Çalışma sonucunda en düşük Ge konsantrasyonu batıda Pb'de (872,8) ve en yüksek Ge konsantrasyonu kuzeyde Cpa'da (6367,5) bulunmuştur. Mevcut çalışma burada analiz edilen bitki türlerinde Ge birikiminin oldukça yüksek seviyede olduğunu ortaya koymuştur. Bu sonuçlar havadaki Ge kirliliğinin çok yüksek olduğunu göstermektedir.

Anahtar Kelimeler

• Germanyum
• Cedrus atlantica
• Pinus pinaster
• Ağır Metaller

Kaynakça

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