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Preparations for the reclamation of a lagoon containing canal dredgings contaminated with heavy metals including mercury
Author(s) -
Edwards Philip R.,
Pumphrey Nicholas W. J.
Publication year - 1981
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740321002
Subject(s) - land reclamation , mercury (programming language) , contamination , environmental chemistry , environmental science , mercury contamination , heavy metals , soil contamination , environmental engineering , chemistry , ecology , biology , computer science , programming language
The uptake of trace metals, in particular mercury, into crops from contaminated canal dredgings contained in a lagoon has been studied in field trials and other experiments. In none of these experiments was it possible to demonstrate a significant difference ( P <0.05) between mercury or other metal concentration in plants exposed to the contaminated dredgings and in plants grown as controls. No problem with metal contamination of crops is anticipated when the lagoon is reclaimed for agricultural purposes but it will be necessary to cover the dredgings with 30 cm of soil to ensure adequate yields of shallow‐rooted crops.