Sequential fractionation of phosphorus in lake sediments of northern Greece

The amounts and forms of potentially mobile P in surface sediments from two lakes, Volvi and Koronia, located in Northern Greece were evaluated using a sequential chemical extraction. Five sedimentary P reservoirs were separately quantified: loosely sorbed P (NH4Cl-P); iron associated P (BD-P); calc...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2005, Vol.100 (1-3), p.191-200
Main Authors: FYTIANOS, K, KOTZAKIOTI, A
Format: Article
Language:English
Subjects:
Applied sciences
Biological and physicochemical properties of pollutants. Interaction in the soil
Chemical extraction
Chemical Fractionation - methods
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Environmental Monitoring
Exact sciences and technology
Fractionation
Fresh Water - chemistry
Freshwater
Geologic Sediments - analysis
Geologic Sediments - chemistry
Greece
Lake sediments
Lakes
Particle Size
Phosphorus
Phosphorus - analysis
Phosphorus - chemistry
Pollution
Pollution, environment geology
Sediments
Sodium hydroxide
Soil and sediments pollution
Water Pollutants, Chemical - isolation & purification
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Summary:The amounts and forms of potentially mobile P in surface sediments from two lakes, Volvi and Koronia, located in Northern Greece were evaluated using a sequential chemical extraction. Five sedimentary P reservoirs were separately quantified: loosely sorbed P (NH4Cl-P); iron associated P (BD-P); calcium bound P (HCl-P); metal oxide bound P (NaOH-P) and residual P (organic and refractory P). Samples were taken in two seasons and the average concentration of the fractions of phosphorus were calculated. The results indicated that the TP content and chemically extractable phosphorus in the sediments of Koronia Lake were higher than those of Volvi Lake. Sediment TP was also strongly and positively correlated with sediment Fe. Fine-sized sediments exhibited significantly higher concentrations for both lakes than the sand fraction. The P in the surface sediment mainly consisted of HCl-P and Res-P, while NH4Cl-P and BD-P only constituted a minor part. The rank order of the different P extracts was the same for the two lakes and was Residual-P > HCl-P > NaOH-P > BD-P > NH4Cl-P.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-005-4770-y