Bioaccumulation of Cadmium Content in Mushroom and Soil in Delhi-NCR Region of India

Abstract

This study was carried to estimate the distribution and accumulation of cadmium in wildly grown edible mushroom and its underlying soil from surrounding areas of Delhi-NCR. Samples were collected from regions polluted with industrial drainage and heavy traffic. Cadmium accumulations in these were compared with that of wildly grown mushroom collected from non polluted cultivated and remote residential areas of Delhi. Commercial samples of mushroom were also collected and analyzed. All these study was conducted on four different varieties of mushroom i.e. Button mushroom (Agaricus bisporus), Oyster mushroom (Pleurotus sajor-caju), Milky mushroom (Calocybe indica) and Shiitake (Lentinus edodes). The levels of cadmium were analyzed using Flame Atomic Absorption Spectrometry. The results from the two way ANOVA showed that there was significant variation in trace metal concentrations at different locations. From correlation analysis it was found trace metals concentration in soil and mushroom samples were positively correlated.