TEMPORAL AND SEASONAL-VARIATIONS OF HYDROGEN-PEROXIDE LEVELS IN ESTUARINE WATERS

被引：35

作者：

KIEBER, RJ ^{[1
]}

HELZ, GR ^{[1
]}

机构：

[1] UNIV MARYLAND,DEPT CHEM & BIOCHEM,COLLEGE PK,MD 20742

来源：

ESTUARINE COASTAL AND SHELF SCIENCE | 1995年 / 40卷 / 05期

关键词：

HYDROGEN PEROXIDE; ESTUARINE CHEMISTRY; PHOTOCHEMISTRY; NATURAL WATER CHEMISTRY; PEROXIDE SEASONALITY;

D O I：

10.1006/ecss.1995.0034

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Hydrogen peroxide variability on the Patuxent River at both estuarine and freshwater locations are reported. Estuarine peroxide ranged from 11 to 350 nM and exhibited both diel and seasonal variability. Upriver, high organic, freshwaters showed similar H2O2 profiles to those observed in the estuary. These are the first H2O2 data reported for this estuarine environment. Concentrations are similar in magnitude and range to values reported in both fresh and marine systems. The diel H2O2 variability presented here is similar in structure to marine and freshwaters with an amplitude intermediate between the former and the latter. Possible implications for submicromolar levels of this chemically and biologically labile species in estuarine systems are also discussed.

引用

页码：495 / 503

页数：9

共 41 条

[1]

COOPER SL, 1994, ADV CHEM SER, V237

[2] SPATIAL AND TEMPORAL PATTERNS OF HYDROGEN-PEROXIDE IN LAKE WATERS [J].