PB ISOTOPES AND PB, ZN AND CD CONCENTRATIONS IN THE RIVERS FEEDING A COASTAL POND (THAU, SOUTHERN FRANCE) - CONSTRAINTS ON THE ORIGIN(S) AND FLUX(ES) OF METALS

被引：85

作者：

MONNA, F ^{[1
]}

BENOTHMAN, D ^{[1
]}

LUCK, JM ^{[1
]}

机构：

[1] UNIV MONTPELLIER 2,GEOFLUIDES BASSINS EAUX LAB,URA D1767,F-34095 MONTPELLIER 05,FRANCE

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 1995年 / 166卷 / 1-3期

关键词：

LEAD POLLUTION; ZINC POLLUTION; CADMIUM POLLUTION; LEAD ISOTOPES; THAU BASIN; SOUTHERN FRANCE;

D O I：

10.1016/0048-9697(95)04514-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this study was to identify the various sources and the behaviour of Pb, Zn and Cd in the watershed of the Thau pond (southern France), using Pb isotopes and Pb, Zn and Cd contents. The study was carried out at two different sites. The first (sub-watershed of the Vene river) presents a high density of potential sources of anthropogenic pollution (liquid urban wastes, road traffic, industries) coupled with a karstic-type water supply. The second (Pallas zone) is located in a mainly agricultural area distant from industrial activities. Several main sources of lead pollution are distinguished using the Pb-206/Pb-207 ratio: lead from gasoline (1.109-1.111), natural lead leached out of rocks and soils (1.198-1.200) and lead from treated or untreated urban wastes (1.147-1.162). The transfer of gasoline lead to the rivers occurs essentially during rainfall; in the Vene area, the urban anthropogenic lead component dominates while the 'rock-derived' lead is the main source in the rural area of the Pallas. Relationships existing between Pb concentrations, Pb/Zn ratios and Pb-206/Pb-207 ratios make it possible to determine the various transfer cycles of these different elements. Metal concentrations in water remain very low: Pb < 9 ppb (mu g/l), Zn < 35 ppb and Cd < 0.4 ppb, much lower than the norms accepted for drinking water.

引用

页码：19 / 34

页数：16

共 36 条

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