LEAD CONTAMINATION LEVELS IN POTABLE, IRRIGATION AND WASTE-WATERS FROM AN INDUSTRIAL-AREA IN SOUTHERN SPAIN

被引：10

作者：

CABRERA, C ^{[1
]}

LOPEZ, MC ^{[1
]}

GALLEGO, C ^{[1
]}

LORENZO, ML ^{[1
]}

LILLO, E ^{[1
]}

机构：

[1] LAB AGROALIMENTARIO GRANADA,E-18014 ATARFE,SPAIN

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 1995年 / 159卷 / 01期

关键词：

LEAD; WATER CONTAMINATION; ENVIRONMENTAL POLLUTION; ATOMIC ABSORPTION SPECTROMETRY;

D O I：

10.1016/0048-9697(94)04315-E

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We describe a method for the direct determination of lead in potable, irrigation and waste waters, using electrothermal atomization atomic absorption spectrometry with HNO3 and NH4H2PO4-NH4 NO3 as chemical modifiers. The temperature and time programs for mineralization and atomization of the element in each type of sample were optimized. We verified the sensitivity, accuracy and precision of the method and ruled out matrix interferences. The method was used to determine lead in waters sampled on an industrial area of the province of Granada in southeastern Spain. The range of lead concentrations in the samples tested were from 9.6 to 22.4 mu g l(-1) in potable water, from 6.3 to 103.7 mu g l(-1) and from 10.0 to 63.5 mu g l(-1) in wastewater. The possible sources of contamination, its repercussions on Pb levels in food and feed crops in this region, as well as the possible risks to human health were also evaluated.

引用

页码：17 / 21

页数：5

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