FORMATION OF MUTAGENIC ORGANIC BY-PRODUCTS AND AOX BY CHLORINATION OF FRACTIONS OF HUMIC WATER

被引：25

作者：

LANGVIK, VA ^{[1
]}

HOLMBOM, B ^{[1
]}

机构：

[1] ABO AKAD UNIV,DEPT FOREST PROD CHEM,SF-20700 TURKU,FINLAND

来源：

WATER RESEARCH | 1994年 / 28卷 / 03期

关键词：

HUMIC WATER; FRACTIONS OF; CHLORINE-TREATMENT; MUTAGENIC BY-PRODUCTS;

D O I：

10.1016/0043-1354(94)90006-X

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dissolved organic matter from a lake was isolated and fractionated by sorbtion on an XAD-I column and then separated into humic and fulvic acids. After chlorine- treatment of the fractions 2-chloro-3-dichloromethyl-4-oxo-butenoic acid, MX, and three related compounds were determined by means of GC/MS in the selected ion monitoring mode. Mutagenicity was determined in the Ames test and adsorbable organic halogen (AOX) was determined by adsorption to activated carbon followed by neutron activation analysis. AOX formation per unit organic carbon was similar in the hydrophilic and hydrophobic fractions, but the hydrophobic fraction produced more mutagenic activity and MX than the hydrophilic one. The humic acid fraction produced slightly more mutagenicity and MX than the fulvic acid fraction per unit organic carbon. However, there are more fulvic acids than humic acids in natural waters and therefore fulvic acids contribute more to the mutagenicity and MX formation in chlorinated natural waters.

引用

页码：553 / 557

页数：5

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