carbon monoxide

Although many attempts have been made to convert captured CO2 into useful products, until now most researchers have only shown the ability to produce carbon monoxide.

Dorset Police, who previously said carbon monoxide poisoning was a possible cause, said the deaths were still being treated as "unexplained".

Cigarettes release thousands of different chemicals when they burn, including carbon monoxide, lead and ammonia.

In the case of large, multiple-battery fires, they can burn for days, all the while releasing toxic gases such as hydrogen fluoride, hydrogen chloride, carbon monoxide and carbon dioxide.

The employees were treated for heat-related illness, the report said, but when their symptoms didn’t improve, they were treated at a hospital for carbon monoxide exposure.