ARSENIC RESIDUES IN AGRICULTURAL SOILS OF SOUTHWESTERN ONTARIO

被引：16

作者：

MILES, JRW

机构：

[1] Research Institute, Canada Department of Agriculture, London, Ontario

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1968年 / 16卷 / 04期

关键词：

D O I：

10.1021/jf60158a035

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Determination of arsenic residues in farm soils in southwestern Ontario showed the highest residue levels in orchard soils. Residues in four apple orchards were 10.2, 23.1, 39.4, and 107 p.p.m. of arsenic between the trees, and 15.6, 44.9, 67.0, and 121 p.p.m. under the trees. One vegetable soil contained 26.6 p.p.m. of arsenic. The remainder of the 32 farm soils sampled contained residues of less than 10 p.p.m. of arsenic, the normal range for untreated soils. Strata studies conducted on one orchard soil showed a fairly uniform vertical distribution of arsenic residues in the top 6 inches of soil. An improved standard-taper all-glass apparatus, for more efficient absorption of arsine gas in the arsine-molybdenum blue method for arsenic is described. © 1968, American Chemical Society. All rights reserved.

引用

页码：620 / &

共 10 条

[1]

ALBERT WB, 1933, 46 S CAR AGR EXPT ST, P44

[2]

BISHOP R. F., 1962, CANADIAN JOUR SOIL SCI, V42, P77

[3]

BLODGETT E. C., 1941, Plant Disease Reporter, V25, P549

[4]

HARRIS CB, UNPUBLISHED DATA

[5] EXPLORATORY STUDIES ON OCCURRENCE OF ORGANOCHLORINE INSECTICIDE RESIDUES IN AGRICULTURAL SOILS IN SOUTHWESTERN ONTARIO [J].