The excess of Lead in the human blood is extremely dangerous for their health specially for their nervous system. 8-Hydroxy quinoline (8-HQ) is used as complexing reagent and reacts with metals to form uncharged chelates. Hence it is imperative that the excess amount of Lead in the blood of children excreted by means of complexes which make lead soluble and excreted it through urine. The mixed ligand complexes of 8-Hydroxy Quinoline (8-HQ), and Glycollate (gly 1-), lactate (lact 1-), malate

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... 2-) and tartrate (tart 2-) with Pb (II) have been studied polarographically at constant ionic strength, =1.5 M (NaNO 3) and pH 5.95 at 250.1ºC. The reduction of the complexes at d.m.e. is reversible and diffusion controlled. (8-HQ)] is formed in each case and the stability constant at 25 0 C are; log  11 = 6.844, 6.915, 7.122 and 6.416 respectively. The present study is aimed at presenting complexes which make excess lead soluble. Hence it is highly useful for the health of children as well as for adults. INTRODUCTION Environmental pollution is very prominent in point source areas such as mining, foundries and smelters and other metal based industrial operations 1-3. The excess of Lead in the blood of children is extremely dangerous for their health specially for their nervous system. Headache , poor attention spam, irritability, loss of memory and dullness are the early symptoms of the effect of Lead exposure on the central nervous system 4,5. In the modern fashion oriented society people are crazy for interior decoration which increases the possibility of lead pollution. Lead pollution is caused chiefly by the water pipes used in carrying water to the houses and by paints used in school's and houses. Hence it is imperative that the excess amount of Lead in the human blood excreted by means of complexes which make lead soluble and excreted it through urine. The present study is aimed at presenting complexes which make excess lead soluble.Hence it is highly useful for the health of children as well as for adults. It will have tremendous medicinal value in future. From the survey of literature 6-15 it appears that polarographic studies of mixed complexes of Pb (II) with 8-Hydroxy Quinoline and glycollate, lactate, malate and tartrate are still lacking. Hence the present work has been under taken. The communication deals with the studies of mixed ligand complexes of Pb(II) with 8-Hydroxy Quinoline and glycollic acid, lactic acid, malic acid and tartaric acid.