The joint committee tasked with probing the leak, headed by former Andhra Pradesh High Court Justice B Sheshasayana Reddy has also called for a pan-India audit of factory safety inspections "in light of many accidents reported due to failure of safety measures and lack of training”. Among these were, the only temperature monitoring gauge at the bottom of the tank, the outdated design of the tank, absence of any interlock system arrangement between the temperature monitoring and refrigeration systems, and no external water spray arrangement over the tank in case of temperature increase. However, NDRF refuted reports of second gas leakage in Vizag. Poor safety awareness, inadequate risk assessment response, poor process safety management system and slackness of management was also found during ten investigation. The committee established that an uncontrolled styrene vapor was released from the N6 tank of LG polymers on May 7. According to the committee’s report, several key lapses were found in the plant’s adherence to safety norms. Ever since then, the HPC has been in discussions with the district administration, Greater Visakhapatnam Municipal Corporation (GVMC), and other bodies. The rise in the temperature caused the styrene liquid to eventually vaporise and increase the pressure; it was a tank with small vents," the report said. It also found the poor design of the tank, inadequate refrigeration and faulty cooling system, absence of circulation and mixing systems, inadequate measures and parameters and poor safety protocol led to the disaster causing loss of lives. Vizag gas leak Updates: Andhra govt to airlift 500 kgs of PTBC from Daman to neutralise chemical; special NDRF team to fly in from Pune Vizag Gas Leak LIVE Updates: The Central government is flying in a specialised CBRN (chemical, biological, radiological and nuclear) team of the NDRF from Pune to Vishakhapatnam. advertisement. The Tribune, the largest selling English daily in North India, publishes news and views without any bias or prejudice of any kind. Aneesha Mathur New Delhi May 30, … The concentration of Styrene in the air at Venkatapuram village, which is about 100 meters from the factory, was beyond hazardous levels at 461 ppm on May 7, 374 ppm after over 24 hours on May 8, and remained at 1.5 ppm even on May 10, three days after the disaster. Chiller system was switched off at 6 pm the previous evening as part of routine maintenance and no temperature or pressure monitoring was done at the middle or top of the tank where space is left for vapourisation, found the committee.In addition, the report also pointed out that TBC (Tertiary Butyl Catechol) which is an inhibitor chemical to slow down the reactions, was not topped up since April 1 since there was no TBC stored at the site. For reprint rights: Syndications Today, The concentration of Styrene in the air at Venkatapuram village, which is about 100 meters from the factory, was beyond hazardous levels on May 7. The high-power committee also found that the emergency alarm system was not used at the plant after the leak "despite there being a total of 36 activation points, including one at the factory gate. Sources privy to report said the high-power committee found that "the accident occurred due to uncontrolled styrene vapour release from the M6 tank, qualifies as a major accident as per the definition under MSIHC rules". As per the National Disaster Response Force(NDRF), the death toll was 11, an… "The temperature in the tank rose substantially. An FIR was registered after the hazardous styrene gas leaked from the plant causing widespread panic in the area. “With the experience from the world over of Styrene, it takes a considerable amount of idle time to have polymerization inside the tank if effective inhibition and chilling is maintained. Vizag gas leak: Report on impact of tragedy on victims in five days. According to the committee’s report, ambient air in urban areas generally contains between 0.29-3.8 microgram/cubic metre of styrene. The report has also flagged several lapses by the government and local administration in the tragedy, in addition to the failure of the factory inspectors to ensure that basic safety protocols were put in place at the chemical plant. An affidavit filed by the Ministry of Environment and forests (MoEF) on May 29 has also revealed a serious lapse on the part of the monitoring agencies - the status report filed before NGT by the central government indicates that the LG Polymers factory did not have proper environmental clearance or approvals from authorities responsible for assessing environmental impact.

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