"Approximately 346 tonnes of hazardous waste is safely secured and kept in the factory premises of UCIL, Bhopal.
"Waste is segregated into four categories which are sevin residue and naphthol residue (95 tonnes), reactor residue (30 tonnes), semi-processed pesticide (56 tonnes) and excavated waste or contaminated soil (165 tonnes)," Union Environment Minister Prakash Javadekar said in a written reply in Lok Sabha.
He was replying to a question whether toxic waste after the tragedy was still lying at the UCIL factory.
"In pursuance of the orders of Supreme Court in April 2014, the Ministry has authorised Central Pollution Control Board (CPCB) to incinerate 10 tonnes of UCIL waste at treatment, storage and disposal facility during August 2015.
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"The Ministry has further sought directions from the Supreme Court on the future roadmap for disposal of the remaining waste and remediation of the contaminated site," Javadekar said.
A government affidavit in 2006 stated that the leak caused 5,58,125 injuries, including 38,478 temporary partial injuries and approximately 3,900 severely and permanently disabling injuries, reports suggest.