IMPACT OF CEMENT DUST ON GROWTH AND METABOLISM OF BRASSICA OLEREACEAS.K. RAFIQ, S. KHALID, B.A. SHEIKH, N.A. KHAN AND M.I. PAULAbstract The impact of cement dust on different biochemical parameters viz chlorophyll, phaeophytin, caroteniod free sugar, starch, amino acid and proteins were studied for a period of one year. All the parameters except amino acids showed a remarkable decrease as compared to control. Total chlorophyll content decreased by 91% and 83%, total phaeophytin by 86% and 76%, cartoeniod by 70% and 56%, Starch by 33% and 11%, free sugar by 17% and 6% and protein by 28% and 19% respectively at 50m and 100m away sites as compared to control. The amount of amino acid showed an increase of 13% and 5% at the same sites as compared to control.
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