Tarenni Colliery 1858, when the Primrose Colliery was owned by Morgan and Lewis, fumes of an engine boiler suffocated 14 men and boys, and 7 horses. According to HM Inspectorate of Mines and Quarries data, outside the Gwendraeth valley, Tarenni Colliery had the highest set of recorded incidents for coal damp and methane gas explosions. In total during its production lifetime, there were six outbursts in which three men lost their lives: one on 12 December 1914; two on 17 February 1941. On 1 November 1909, water from the abandoned Ynysgeinon pit caused the death of five miners at Tarenni No.2. On
Gas gangrene as a degree of loud and distinctive crepitus caused by gas escaping the necrotic tissue. Gas gangrene is caused by exotoxin-producing "Clostridium" species (most often "C. perfringens", and "C. novyi", but less commonly "C. septicum" or "C. ramnosum"), which are mostly found in soil, but also found as normal gut flora, and other anaerobes (e.g., "Bacteroides" and anaerobic streptococci). The exotoxin is commonly found in "C. perfringens" type A strain and is known as alpha toxin. This alpha toxin is a lethal toxin and also known as phospholipase C (lecithinase). It increases vascular permeability and produces necrotizing activity. These environmental