HYDROXYLATED ATRAZINE DEGRADATION PRODUCTS IN A SMALL MISSOURI STREAM

被引：64

作者：

LERCH, RN ^{[1
]}

DONALD, WW ^{[1
]}

LI, YX ^{[1
]}

ALBERTS, EE ^{[1
]}

机构：

[1] ANALYT BIOCHEM LABS INC, COLUMBIA, MO 65202 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1995年 / 29卷 / 11期

关键词：

D O I：

10.1021/es00011a010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This research assessed the occurrence of hydroxylated atrazine degradation products (HADPs) in streamwater from Goodwater Creek watershed in the claypan soil region of northeastern Missouri. Streamwater was sampled weekly from June 1992 to December 1994 at a V-notch weir used to measure streamflow for this 7250-ha watershed. Filtered water samples were prepared by cation exchange solid-phase extraction and analyzed for hydroxyatrazine (HA), deethylhydroxyatrazine (DEHA), and deisopropylhydroxyatrazine (DIHA) by high-performance liquid chromatography with UV detection. HADPs were confirmed by mass spectrometry and an alternative HPLC/UV method. Frequency of HADP detection was 100% for HA, 25% for DEHA, and 6% for DIHA. Concentrations ranged from 0.18 to 5.7 mu g L(-1) for HA, from < 0.12 to 1.9 mu g L(-1) for DEHA, and from < 0.12 to 0.72 mu g L(-1) for DIHA. These results establish that HADPs can contaminate surface water and that HA contamination of surface water is a significant fate pathway for atrazine in this watershed.

引用

页码：2759 / 2768

页数：10

共 57 条

[31] PHOTOSENSITIZED TRANSFORMATIONS OF ATRAZINE UNDER SIMULATED SUNLIGHT IN AQUEOUS HUMIC-ACID SOLUTION [J].