Heavy metals pollution of aquatic ecosystems in the vicinity of a recently closed underground lead-zinc mine (Basque Country, Spain)

被引:1
作者
Marqués, MJ
Martínez-Conde, E
Rovira, JV [1 ]
Ordóñez, S
机构
[1] Univ Complutense Madrid, Dept Ecol, E-28040 Madrid, Spain
[2] Univ Alicante, Dept Environm & Earth Sci, E-03080 Alicante, Spain
来源
ENVIRONMENTAL GEOLOGY | 2001年 / 40卷 / 09期
关键词
aquatic ecosystems; heavy metals; pollution; polymetallic sulphide mine; Troya Mine;
D O I
暂无
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A presentation is made of the study of an underground polymetallic sulphide mine and the pollution caused by this in the adjoining aquatic ecosystems. Troya Mine is in the Basque Cantabrian region (northern Spain). The annual production of the ore deposit of over 3.7 million tons of Pb (0.9%), Zn (11.2%) and Cu (0.2%) was 300,000 t. It was open and producing from 1986-1993. The mineralization was made up of pyrite, marcasite, sphalerite, galena, chalcopyrite and arsenopyrite. Only the Zn and the Pb were mined. We studied the distribution and behaviour of the heavy metals Zn, Pb, Fe, Mn, Cu, Cr and Cd in the water column, dissolved and suspended fractions, and in the sediments of Estanda Stream and of Gezala Creek. Zn, Cd and Mn tend to be found in the water; Fe, Pb, Cu and Cr appear as an adsorbed fractionin the solid phases. Those of the second group are significantly linked to the fluvial sediments and present very high levels. The concentrations of the metals are conditioned by the waters from the mine galleries, by the leached waste, by the surface runoff, and by overflow from the spillway of the tailings pond. Our observations provide knowledge on the extent of the polluting power of the metals, the physico-chemical effects in play and the subsequent chances of recovering these highly affected environments.
引用
收藏
页码:1125 / 1137
页数:13
相关论文
共 43 条
[1]   EVALUATION OF EXTRACTION TECHNIQUES FOR DETERMINATION OF METALS IN AQUATIC SEDIMENTS [J].
AGEMIAN, H ;
CHAU, ASY .
ANALYST, 1976, 101 (1207) :761-767
[2]   STUDY OF DIFFERENT ANALYTICAL EXTRACTION METHODS FOR NON-DETRITAL HEAVY-METALS IN AQUATIC SEDIMENTS [J].
AGEMIAN, H ;
CHAU, ASY .
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, 1977, 6 (01) :69-82
[3]   AGRICULTURAL USE OF METAL POLLUTED SOIL NEAR AN OLD LEAD-ZINC MINE IN OIARTZUN (BASQUE COUNTRY, SPAIN) [J].
ANSORENA, J ;
MARINO, N ;
LEGORBURU, I .
ENVIRONMENTAL TECHNOLOGY, 1995, 16 (03) :213-222
[4]  
AYALA FJ, 1984, 7 C INT MIN MET BARC, P75
[5]  
BUSTILLO M, 1985, BOL GEOL MIN, V96, P48
[6]  
BUSTILLO M, 1980, REV I INVEST GEOL, V34, P339
[7]  
*DFGGV, 1994, EST HIDR AC TROYA
[8]  
*DIEGV, 1995, 220 DIEGV INFO
[9]  
*DIEGV, 1995, 219 DIEGV INFO
[10]  
*DIEGV, 1993, EST PREL DET POS CON