1 the presence of flammable gases or contaminants in the atmosphere
2 the adequacy of the following—(a) ventilation;(b) coal dust inertisation;(c) emergency, first aid and fire fighting equipment
3 the condition of the following—(a) ventilation control devices;(b) auxiliary fans;(c) surfaces over which persons may travel or vehicles may be driven;(d) the support for the roof and sides of the workings
4 the stability of roadways in the workings
5 indications of heating or fire
6 abnormal water inflow
7 plant malfunction
8 the proper functioning of communication and monitoring systems
9 excessive accumulation of mud, water or coal
10 thermal environmental conditions