Influence of pH on the accumulation of cadmium and lead in earthworms (Aporrectodea caliginosa) under controlled conditions

This study was conducted with soils from the vicinity of Oulu, northern Finland to investigate the effect of pH on the accumulation of Cd and Pb in earthworms. The earthworms (Aporrectodea caliginosa) were maintained in wooden boxes in two series of experiments. The calcium, pH and heavy metal conte...

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Bibliographic Details
Published in:Annales zoologici fennici 1992, Vol.29 (2), p.105-111
Main Authors: Peraemaeki, P, Itaemies, J, Karttunen, V, Lajunen, L.H.J, Pulliainen, E
Format: Article
Language:English
Subjects:
Acid soils
Animal, plant and microbial ecology
Aporrectodea caliginosa
Applied ecology
Biological and medical sciences
CADMIO
CADMIUM
Calcium
Earthworms
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on protozoa and invertebrates
EXPERIMENTACION EN LABORATORIO
EXPERIMENTATION EN LABORATOIRE
FINLAND
FINLANDE
FINLANDIA
Fundamental and applied biological sciences. Psychology
Heavy metals
LABORATORY EXPERIMENTATION
LEAD
LUMBRICIDAE
Organic soils
PLOMB
PLOMO
POLLUTION DU SOL
POLUCION DEL SUELO
Sand soils
Soil organic matter
SOIL POLLUTION
Worms
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Summary:This study was conducted with soils from the vicinity of Oulu, northern Finland to investigate the effect of pH on the accumulation of Cd and Pb in earthworms. The earthworms (Aporrectodea caliginosa) were maintained in wooden boxes in two series of experiments. The calcium, pH and heavy metal content (Pb and Cd) were adjusted in order to follow the influence of pH on the Pb and Cd uptake by the worms. The cadmium uptake seems to clearly depend on the pH of the soil and the accumulation becomes faster at a lower pH. The same trend is also seen in lead accumulation. The concentration ratio for cadmium over a period of 230 days varied from 13 to 33.
ISSN:0003-455X
1797-2450