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Chemical company fined £3million after the release of toxic vapour cloud on two separate occasions

A little over sixteen months later there was another incident involving the same toxic chemical.

Hull Crown Court heard that at the Grimsby plant of Cristal Pigment UK Limited (formerly Millennium Inorganic Chemicals), there was a build-up of Titanium Tetrachloride within a vessel. The chemical came into contact with water creating a violent reaction, which ruptured the vessel. The liquid came into contact with the air creating a large toxic vapour cloud.

One worker Paul Doyley, 48, was showered with the corrosive liquid and blanketed by the rapidly expanding toxic vapour cloud, he died from his injuries. His colleague Ron Ingoldby was also covered by the dense cloud, surviving his injuries but with irreversible lung damage

The large poisonous vapour cloud rapidly expanded to several metres in height and poured out from the site as a thick, dense white cloud. The wind blew the cloud out across the river Humber and closed down the shipping lanes for several hours, until the incident was eventually brought under control by the Humberside Fire and Rescue Service.

The investigation by the Health and Safety Executive (HSE) found the company had deviated from the normal operating procedures, which led to the dangerous build-up of the chemical. Parts of the plant and its procedures were poorly designed and the company had not established robust safety management procedures and systems of work to assess and control risk and to ensure that these were actually followed.

The following year there was another uncontrolled release of a toxic vapour during the cleaning of a redundant vessel.

The vessel, which is normally connected to the chemical production plant, was being replaced. The old vessel was removed and stored, for around three-years, with a number of tonnes of residual Titanium Tetrachloride.

The Health and Safety Executive’s investigation found that the company made the decision to clean the vessel. The company poorly managed the design and installation of fabricated plates to seal the vessel before carrying out the cleaning process. The plates were incompatible, incorrectly designed and used inappropriate sealants that could not contain the gas created during the procedure, releasing a toxic vapour cloud.

Cristal Pigment UK Ltd of Stallingborough pleaded guilty to the following charges: Sections 2(1) and 3(1) of the Health and Safety at Work etc. Act 1974, for the first incident and also Regulation 4 of the Control of Major Accident Hazards Regulations 1999 for the second incident. The company was fined £1.8mil and £600,000 for charges associated with the first incident and fined £600,000 for the charge associated with the second incident with costs of £37,868.00.

Added: 10-11-2016
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