Toxic element contamination in waters from the massive sulfide deposits and wastes around Giresun, Turkey

Necati KARAKAYA; Muazzez ÇELİK KARAKAYA

Makale detayları

Toxic element contamination in waters from the massive sulfide deposits and wastes around Giresun, Turkey

Yazarlar:

Necati KARAKAYA | Muazzez ÇELİK KARAKAYA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2014 Vol.23 Issue 2, pp.113-128

Belge Tipi:

Makale

Yayın Tarihi:

5/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000731619

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985

Özet:

 

This study assessed the quality of water polluted with mine drainage waters, some of which is used for drinking and agriculture, in the urban areas of the Giresun region, Turkey. A total of 40 water samples were collected from the main rivers and stream, spring, and drainage waters. All samples were analyzed for physical and chemical parameters. The tectonically controlled massive sulfide deposits hosted in the Maastrichtian-Eocene magmatic rocks are either active or have been abandoned. The main ore mineral assemblages are chalcopyrite, sphalerite, galena, and pyrite. The oxidation of the sulfide minerals in the deposits and wastes has caused acid mine drainage (AMD). Most of the spring, stream, and drainage waters have a strongly acidic pH and high sulfate content, and concentrations of Pb, Zn, Fe, and Cu can reach extremely high values. In addition to these elements, the concentrations of Cd, As, Mo, Se, Sb, Tl, and Bi are higher than the international and national drinking water guideline limits. Fe, Al, and Zn levels in stream, spring, and drainage waters are substantially higher than those in the rivers. The risk index values of hazardous elements in the river water show no or low risk, while most of the stream, spring, and drainage waters show high and/or extremely high risk values. The concentrations of the metals and pollution levels of most of the stream, spring, and drainage waters may pose great environmental risks through the changes they cause and disturbances brought to the living things in the area.

 

This study assessed the quality of water polluted with mine drainage waters, some of which is used for drinking and agriculture, in the urban areas of the Giresun region, Turkey. A total of 40 water samples were collected from the main rivers and stream, spring, and drainage waters. All samples were analyzed for physical and chemical parameters. The tectonically controlled massive sulfide deposits hosted in the Maastrichtian-Eocene magmatic rocks are either active or have been abandoned. The main ore mineral assemblages are chalcopyrite, sphalerite, galena, and pyrite. The oxidation of the sulfide minerals in the deposits and wastes has caused acid mine drainage (AMD). Most of the spring, stream, and drainage waters have a strongly acidic pH and high sulfate content, and concentrations of Pb, Zn, Fe, and Cu can reach extremely high values. In addition to these elements, the concentrations of Cd, As, Mo, Se, Sb, Tl, and Bi are higher than the international and national drinking water guideline limits. Fe, Al, and Zn levels in stream, spring, and drainage waters are substantially higher than those in the rivers. The risk index values of hazardous elements in the river water show no or low risk, while most of the stream, spring, and drainage waters show high and/or extremely high risk values. The concentrations of the metals and pollution levels of most of the stream, spring, and drainage waters may pose great environmental risks through the changes they cause and disturbances brought to the living things in the area.

Makale detayları

Toxic element contamination in waters from the massive sulfide deposits and wastes around Giresun, Turkey

Yazarlar: Necati KARAKAYA | Muazzez ÇELİK KARAKAYA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Earth Sciences 2014 Vol.23 Issue 2, pp.113-128

Belge Tipi: Makale

Yayın Tarihi: 5/2014

Belge Dili: Türkçe

Document ID (Org No.): 2000731619

Sıklık: İki Aylık

eISSN: 1303-619X

pISSN: 1300-0985

Sayı

Yazarlar:

Necati KARAKAYA | Muazzez ÇELİK KARAKAYA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2014 Vol.23 Issue 2, pp.113-128

Belge Tipi:

Makale

Yayın Tarihi:

5/2014

Belge Dili:

Türkçe

Document ID (Org No.):

2000731619

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985