What working condition did miners have to endure in the coalmine?

Miners in coal mines endured hazardous working conditions, including exposure to toxic dust and gases, which led to respiratory diseases like black lung. They often worked long hours in dark, cramped spaces with inadequate ventilation and poor lighting. Additionally, the risk of accidents was high due to unstable tunnels, falling rocks, and the potential for explosions. These factors contributed to a dangerous and physically demanding work environment.