Piotr Daniszewski, Ryszard Konieczny, Heavy Metal Content in Water of Starzyc Lake (North-West Poland), ILCPA Volume 13, International Letters of Chemistry, Physics and Astronomy (Volume 13)
https://www.scipress.com/ILCPA.13.269
Abstract:
    The present research work deals with the quantification of toxic heavy metals in the water samples collected from Lake of Starzyc (North-West Poland). While the annual average concentration of Cd was calculated as 0.30 ppm in 2008 of the year and 0.21 ppm in 2009 of the year. The values obtained were found to be below the permissible limit of 2.0 ppm set for inland surface water. While the annual average concentration of Cr was calculated as 1,73 ppm in 2008 of the year and 1.67 ppm in 2009 of the year. Which was very much above the permissible limit of 0.1 ppm set for inland surface water. The observed annual average concentration of Cu in the water was 0.03 ppm in 2008 of the year and 0.06 ppm in 2009 of the year, which was below the permissible limit of 3.0 ppm set for inland surface water. While the annual average concentration of Hg was calculated as 0.02 ppm in 2008 of the year and 0.03 ppm in 2009 of the year, which was very much above the maximum limit of 0.01 ppm set for inland surface water. The annual average concentration of Ni in the water samples was observed to be 1.80 ppm in 2008 of the year and 2.07 ppm in 2009 of the year, which is close to the limit of 3.0 ppm set for inland surface water. The annual average concentration of Pb in the water samples was observed to be 0.08 ppm in 2008 of the year and 0.07 ppm in 2009 of the year, which is above the permissible limit of 0.1 ppm set for inland surface water. The results of the present investigation indicate that the annual average concentration of Zn in water samples was 3.52 ppm in 2008 of the year and 3.18 ppm in 2009 of the year, which is above the permissible limit of 5.0 ppm set for inland surface water.
Keywords:
    Hydride Generation, Lake of Starzyc (North-West Poland), Lake Water, Toxic Heavy Metals