A supervisor in charge of removing asbestos from a Canterbury school boiler house has been prosecuted after he recklessly exposed himself to the potentially-dangerous material.

Mr Conn, then a supervisor with a Medway company licensed to remove asbestos, was spotted working unprotected at the site at Canterbury Academy in Knight Avenue on 30 May 2013 by an inspector from the Health and Safety Executive (HSE).

Mr Conn was seen walking around inside the sealed enclosure without wearing his essential respiratory mask, and with the hood of his protective overalls down. A second worker could be seen removing the asbestos materials but with the correct personal protective equipment in use.

HSE prosecuted Mr Conn at Canterbury Magistrates’ Court May 20th 2014 after investigating the incident.

The court heard that on arrival at the school the HSE Inspector saw the thorough and correct preparations the firm had put in place, which included a fenced-off site compound with restricted access warning signs; a decontamination unit with three separate cleaning areas and the sealed boiler house with a three-stage air lock.

Looking to find someone in charge, the Inspector went down to the basement where work was underway and viewed what was happening inside the sealed enclosure on a CCTV monitor. She saw Mr Conn without his respiratory protection and tried to get his attention by shouting through an airlock.

When that failed, she rang the company telling them they needed to get the worker out of the enclosure. She filmed some of the CCTV footage before the firm managed to make contact with the site and the supervisor was told leave the enclosure.

HSE told the court Mr Conn later admitted his respiratory equipment was in the enclosure with him, on the floor, and that he was aware of the risks and the duty to wear it. He also confirmed he had undertaken the training to be a supervisor.

Mr Conn was fined £1,000 with £1,500 towards costs after admitting a breach of the Health and Safety at Work etc Act 1974.

After the case, HSE Inspector Nicola Wellard said:

“It really does beggar belief that a trained supervisor with a licensed company, fully aware of the very real dangers associated with exposure to asbestos, could then casually disregard those dangers and work in a contaminated environment.”

Around 4,000 people die every year as a result of breathing in asbestos fibres, making it the biggest single cause of work-related deaths in the UK. Airborne fibres can become lodged in the lungs or digestive tract, and can lead to lung cancer or other diseases, but symptoms may not appear for several decades.