Arsenic uptake in orchard trees: implications for dendroanalysis

被引:12
作者
Martin, RR [1 ]
Tomlin, A [1 ]
Marsello, B [1 ]
机构
[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
关键词
arsenic; orchards; neutron activation; tree rings;
D O I
10.1016/S0045-6535(99)00501-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The distribution of arsenic in the stems of fruit trees grown in soils exposed to arsenical pesticides has been studied using neutron activation analysis. The results show arsenic to be confined mainly to heartwood near the pith and active xylem tissue in the most. recent annual growth rings. These results suggest that dendroanalysis for arsenic in fruit trees will not yield a reliable chronology of arsenic exposure. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:635 / 637
页数:3
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