Metal concentrations in edible mushrooms following municipal sludge application on forest land.
In the context of biosolids utilisation in forestry, effects of sludge application on mushroom metal concentration were studied in six sites of maritime pine forests in the South-West of France. Municipal sludge were applied at a rate of 6 T dry matter per hectare. Edible mushrooms were collected two years after sludge application. As, Cd, Cu, Hg, Pb, Se and Zn concentrations were determined. Results showed a high variability for trace element concentrations in mushrooms collected from control areas. No significant correlation was found between soil parameters (pH and trace elements concentrations) and mushroom trace element concentrations. Even if the concentration of trace metals increased in the soils, sludge application did not affect As, Cu, Se and Zn concentrations in carpophores but slightly increased Cd, Pb and Hg concentrations on some sites. This effect is dependent on sludge type and sites.
Benbrahim
Mohammed
M
Institut National de la Recherche Agronomique, Unité de Recherches Forestières, UR 911 INRA, Domaine de l'Hermitage, Route d'Arcachon, 33610 Gazinet-Cestas, France.
Denaix
Laurence
L
Thomas
Anne-Laure
AL
Balet
Julie
J
Carnus
Jean-Michel
JM
D000363:Agaricales / Q000737:chemistry*; D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D003300:Copper / Q000032:analysis; D005506:Food Contamination; D005602:France; D006801:Humans; D007854:Lead / Q000032:analysis; D008628:Mercury / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D028223:Pinus; D012643:Selenium / Q000032:analysis; D012722:Sewage; D012989:Soil Pollutants / Q000032:analysis*; D014197:Trees; D015032:Zinc / Q000032:analysis
D019216:Metals, Heavy; D012722:Sewage; D012989:Soil Pollutants; D002104:Cadmium; D007854:Lead; D003300:Copper; D008628:Mercury; D012643:Selenium; D015032:Zinc; D001151:Arsenic