Hindu ritual of immersing idols in ponds , rivers and lakes is causing problems . Paints on idols often contain toxic metals , such as lead and mercury . They contaminate plants , poison animals and irrigation and drinking water . ` ` ' immersion '' suggested as a solution -- idol is sprinkled symbolically with water .
Hindu ritual of immersing idols in oceans , rivers and lakes is causing contamination . Paints on idols often contain toxic metals , such as lead and mercury . Pollutants contaminate plants , poison fish and irrigation and drinking water . `` Dry immersion '' suggested as a solution -- idol is sprinkled symbolically with water .