Together they have travelled the world to such far-flung places as India and Mexico, but now Christopher Morgan and his partner Jean are sharing a completely different experience - the pain and emotional stress of his terminal cancer caused by working with asbestos.

Christopher, a 58-year-old former pipe fitter used to cycle 19 miles to work and back every day, but the once active father of three daughters and grandfather to eight now has to resort to sleeping in a chair to avoid the pain he suffers when laying down. Jean, who can't bear to be apart from the man she loves, sleeps next to him on the sofa.

"We don't laugh like we used to and I do miss the laughter. We feel now that there's nothing to laugh about. We were always going out, always going on international holidays. We had a few more planned and we both wanted to go to Vietnam, but at the moment that's on hold..."

Christopher can trace the cause of his mesothelioma back to his days as an apprentice in a metals firm in London's famous jewellery quarter, Hatton Garden.

He breathed in deadly asbestos fibres when breaking the substance from pipes with a hammer and sweeping it up before cutting new asbestos jointing and rope to insulate boilers. He was never told anything about the dangers he faced and was never given any protective equipment.

It was in July 2008 that Christopher first began to suspect that all was not well. A pain in his side led him to his GP and then to hospital. After investigations, ultrasound and biopsies the worst was confirmed. Sadly for Christopher it was no surprise and the start of a family tragedy repeating.

"I guessed it was Mesothelioma. Some of my family have died of it. It's been like a sword of Damocles. The hardest person to tell was my mother. She knew what it was because her brother died of it."

According to Jean, Christopher's condition is has affected everyone in the family - young and old:

"I don't think one of his grandsons recognised him because of all the weight he lost. He's always been jolly, he's always having a joke, like he's taken on tigers when we've been on safari, but I think they just stared at him and thought 'he's not granddad'. They all sort of backed off. I think it was very hard for them to see him like that."

Christopher is undergoing intensive treatment to prolong his life, but Jean knows all to well that there is no cure for the dreadful disease and that is taking its toll.

"We're both tired. Chris is tired because of his illness and looking after Chris is exhausting. I don't usually tell Chris this. I go to work as much as I can to keep things normal. I take every day as it comes. If he's feeling well I say 'Oh can I go to work today?' and he'll say 'Yeah of course you can' and if he's not feeling too well I won't go in so I can spend more time with him."

To some, asbestos is a health risk of times past. This ignorance may be deadly. Any building built or refurbished before 2000 could contain the substance - and it remains a very real threat. Every week, an estimated 20 tradesmen die from this hidden killer, and the numbers are increasing.

Christopher said, "I think it's absolutely disgusting that there are people still being exposed to this material. They need to learn what asbestos looks like. If they come across something that looks like it could be asbestos they should report it and not disturb it until they know for sure. It is best to be wrong and live than to take a chance and die."

Christopher's warning to tradesmen is personal, stark and pleading:

"I was once like you, fit, healthy and doing what I wanted to. Now look at the state of me, all because I didn't take asbestos seriously and just saw it as a little bit of dust.

"You may be 17, 18 or any other age, but you're not immortal and what you do today may have terrible consequences 30 years down the road. 30 or 40 years may seem like a long time, but I can assure you it isn't. That time goes fast. If you take risks with asbestos you could die of mesothelioma and it is not a nice disease. If you want to live longer and not die then listen to what I'm saying. Take it seriously and don't expose yourself to it."