CO2 mine leaks: Measures to protect homes must be better implemented, study suggests

Existing risk assessments and guidelines addressing CO2 ingress into buildings near former mines in Scotland are not always implemented, according to a new study commissioned after a leaking mine caused people to fall ill in their homes.

In 2014, residents in the forming mining area of Gorebridge sought medical help after CO2 had seeped into their newly built homes from old mine shafts nearby, prompting the Scottish government to commission consultants RSKW to look into the prevalence of the gas in disused mines across Scotland.

In its report, RSKW has identified a total of 12 incidents in Scotland over the past few decades, including the Gorebridge event. It found that while the current processes to protect properties from CO2 entering homes are largely satisfactory, they are not always carried out by developers and local authorities. 

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