DETERMINATION OF TRACE-ELEMENTS, INCLUDING REGIONAL TRACERS, IN RHODE-ISLAND PRECIPITATION

被引：61

作者：

HEATON, RW

RAHN, KA

LOWENTHAL, DH

机构：

[1] Center for Atmospheric Chemistry Studies, Graduate School of Oceanography, University of Rhode Island, Narragansett

来源：

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1990年 / 24卷 / 01期

关键词：

elemental tracers; instrumental neutron activation analysis (INAA); Precipitation analysis; trace elements;

D O I：

10.1016/0960-1686(90)90450-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sampling and analytical methods have been developed to determine 20-40 trace elements plus sulfate in precipitation. Samples are collected on an event basis in polyethylene bags, and are then freeze-dried and analyzed by instrumental neutron activation. Concentration data are presented for 3 years' precipitation samples from southern Rhode Island. Elemental solubility data are presented for a smaller set of samples. Elemental concentrations vary seasonally: crustal and pollutant elements have maximum concentrations in summer, and marine elements have maxima in the winter. The data were collected for use in receptor modelling studies, and the four elements most useful as tracers for regional pollution sources (Se, As, Sb, and noncrustal V) are all well determined. © 1990.

引用

页码：147 / 153

页数：7

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