Byline: DEREK BELLIS

THE narcotic effects of gas on scuba divers could be the reason why three men died in a North Wales quarry, a coroner said yesterday.

Dubbed the pool of death, Dorothea Quarry in the Nantlle Valley claimed the three lives in separate accidents.

Coroner Dewi Pritchard Jones said that the common factor in the tragedies and in many other fatalities he had dealt with involving the quarry, had been nitrogen narcosis. He added: ``It affects the ability to deal with emergencies and what can be a minor incident becomes major. I think ...

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