Sandıklı havzası (Afyonkarahisar-Türkiye) içme sularında doğal radyoaktivite ve duraylı izotop özelliklerinin belirlenmesi

Year 2018, Volume: 24 Issue: 3, 545 - 553, 29.06.2018

Fatma Aksever , Ayşen Davraz , Remzi Karagüzel

Abstract

Sandıklı
havzası Türkiye'nin güneybatısında yeralmaktadır. Bu makalede, Sandıklı
havzasındaki akifer sisteminin beslenimini anlamak için yeraltısuyu duraylı
izotop analizleri değerlendirilmiştir. Bu amaçla, havzada 2009-2010 yıllarında
iki dönem boyunca yeraltısuları örnekleri toplanmış ve duraylı izotop ile doğal
radyoaktivite analizleri yapılmıştır. Bölgedeki yeraltısularının δ¹⁸O
ve δ²H içerikleri sırasıyla ‰-8.08 ile ‰-10.77 ve ‰-52.44 ile
‰-69.53 arasındadır. Duraylı izotop verileri genellikle Küresel Meteorik Su
Doğrusu üzerindedir ve sular meteorik kökenlidir. Yeraltısularının trityum
içeriği kurak dönemde 0.00-4.20 TU ve yağışlı dönemde 0.30-5.40 TU arasındadır.
Trityum içeriğine göre yeraltısuları derin akifer ve yavaş dolaşımı
göstermektedir. Yeraltısularındaki doğal radyoaktivitenin belirlenmesi insan
sağlığı açısından önemlidir. Suların toplam alfa ve beta radyoaktivite
konsantrasyonları 29-162 mBq L⁻¹ ve 70-330 mBq L⁻¹
arasında değişmektedir. Havzadaki içme sularında toplam α ve ß radyoaktivite
konsantrasyonları nispeten düşük ve Dünya Sağlık Örgütü'nün içme suyu
kriterlerine uygundur.

Keywords

İçme suyu, Duraylı izotop, Doğal radyoaktivite, Sandıklı havzası

Determination of stable isotope characteristics and natural radioactivity in drinking waters in Sandıklı basin (Afyonkarahisar-Turkey)

Abstract

The
Sandıklı basin is located in the southwestern part of Turkey. In this paper, groundwater
stable isotope analyzes were evaluated to understand the recharge of the
aquifer system in the Sandıklı basin. For this, samples of groundwater were
collected for two periods in 2009-2010 years and the stable isotope and natural
radioactivity analyzes were made in the basin. The δ¹⁸O and δ²H
contents of groundwaters in the region range from -8.08 to -10.77‰ and
from-52.44 to -69.53‰, respectively. The stable isotope data lie generally
above the Global Meteoric Water Line and waters are meteoric origin. The
tritium content of the groundwaters ranges from 0.00 to 4.20 TU in dry period
and from 0.30 to 5.40 TU in rainy period, respectively. These δ³H
values of waters could be represented that this waters are deep aquifer waters
and slow circulation. The determination of the natural radioactivity in
groundwater is important in terms of human health. The gross alpha and gross
beta radioactivity concentrations of waters varied between 29-162 mBq L⁻¹
and 70-330 mBq L⁻¹, respectively. The results have shown that gross
α and ß radioactivity concentrations in drinking waters in the basin are
relatively low and suitable the World Health Organization regulations for
drinking water.

Keywords

Drinking water, Stable isotope, Natural radioactivity, Sandıklı basin

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