In the early hours of 5th March 2010, 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 that caused the vessel to rupture. 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 13 days later on the 18th March 2010 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 HSE found that 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, on the 27th July 2011, 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 had been removed and stored for around three years, with a number of tonnes of residual Titanium Tetrachloride still left in it. The company made the decision to clean the vessel. They 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 the 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 2010 incident and also Regulation 4 of the Control of Major Accident Hazards Regulations 1999 for the 2011 incident. The company was fined £1.6million and £600,000 costs associated with the incident on 5th March 2010 and £600,000 for the charge associated with the incident on 27th July 2011 with £37,868.00 costs.
After the hearing, HSE inspector Brian Fotheringham said, “The incident of 5th March 2010 caused the death of one employee and life changing injuries to another. Had the wind been blowing in the opposite direction it could also have caused a local disaster. However, the company still did not learn lessons from the 2010 incident and had another significant release of the same toxic gas just over a year later. This case must act as a reminder to the industry that there can be no room for complacency when dealing with such dangerous chemicals.”
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