The police here began investigation into the dumping of bags of insecticides and pesticides into the Neduvode river at Alakkode here that caused health problems to the people.
The pollution of the river was revealed when some local people who went to swim in the river on Monday developed exhaustion and itching. It was then found that the pollution was caused by the large quantities of insecticides and pesticides dumped into the river from a nearby bridge.
At least six local youths who assisted the Fire and Rescue Service personnel in removing the bags of insecticides and pesticides from the river had been hospitalised after they developed some health problems.
The police said six persons who threw the consignment into the river had been identified. The poisonous materials were products cleared from a closed pesticide godown after it was rented out to another person for opening a fertilizer outlet.
The pesticides and insecticides from the shop were dumped into the river on August 1 night, the police said.
Collector V.K. Balakrishnan accompanied by senior officers, including District Medical Officer R. Ramesh, visited the area on Tuesday.
The Fire and Rescue Service personnel led by station officer Antony Kandoth began the task of removing the poisonous garbage from the river early in the morning.
A Fire and Rescue Service unit searched for the poisonous materials in a rubber boat throughout the day. A medical unit was also set up on the river bank to offer medical assistance to those engaged in clearing the hazardous materials from the river.