COMPARISON OF SHORT-TERM AND LONG-TERM EXPERIMENTS DETERMINING THE VOLATILITY OF ATRAZINE FROM DIFFERENT SOIL SURFACES

被引:3
|
作者
SCHNEIDER, P [1 ]
SCHEUNERT, I [1 ]
KETTRUP, A [1 ]
机构
[1] GESELL FORSCH INST OKOL CHEM,W-8042 NEUHERBERG,GERMANY
关键词
ATRAZINE; SOIL; VOLATILITY; CHAMBER; DIRECT MEASUREMENT;
D O I
10.1016/0048-9697(92)90162-L
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The volatilization behaviour of surface applied ATRAZINE (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) from two extremely different soils was determined directly by cold trapping of quantities of the airborne pesticide. Two-day experiments in the laboratory, as compared to minimum 15-day experiments in a climatized room, yielded shorter volatilization half-lives and volatilization rates, which are higher and strongly dependent on laboratory temperature variations. Climatized long-term experiments were mainly influenced by the soil moisture contents and yielded similar volatilization half-life values for the dry soils, showing a negative deviation for moist sand soil and a positive deviation for moist peat soil.
引用
收藏
页码:391 / 398
页数:8
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