Bly- og kadmiuminnholdet i groennsaker, frukt og baer, dyrket i Oslo kommunale skolehager 1981.

allium ampeloprasum allium cepa analyse chimique apples beetroot black currants broccoli brocoli cabbages cadmio cadmium cassis cauliflowers celeriac chemical analysis chou fleur chou pomme chou vert cinc cobre col coliflor copper cuivre daucus carota fer gooseberries groseille rouge grosella grosella negra grosella roja hierro iron kales lead manganese manganeso manzana mercure mercurio mercury noruega norway oligoelementos papa plomb plomo pollution du sol pomme pomme de terre potatoes red currants remolacha repollo rutabaga rutabagas soil soil pollution sol suelo tomate tomatoes trace elements zinc