Have the employees been trained on the hazards resulting from dusts and on the means of preventing dust?
Are raw materials stored in closed systems?
Is heaped up loose material covered with sheets?
Are sacks containing dusty materials resealed after use?
Are the storage areas for dusty materials marked and designed with adequate space for filling and removal processes?
Are the storage vessels (e.g. silos, big bags, sacks) adequately protected against damage (e.g. by loading forks of forklifts)?
Are the discharge heights at filling and discharging stations (e.g. belt transfer points) reduced to a minimum?
Are wet processing methods used as far as possible instead of dry processing methods (e.g. when sawing, cutting or grinding)?
Can fast machining methods be replaced by slower methods?
Are the used dry bulk materials as coarse-grained as possible?
Is unnecessary release of the solids avoided?
Are all workers wearing appropriate PPE?
Is the generation of dust minimised as a result of enclosure or extraction directly at the source of dust?
Have the location and number of sources of hazardous substances, the existing thermal flows and the individual movement of the hazardous substances been taken into account in the layout of the room ventilation?
Are interference factors (draughts, movement of employees and vehicles, blind spots, opening of doors/gates etc.) taken into account?
Is the spreading of dust to nearby work rooms avoided?
Is the supply air delivered from non-contaminated areas?
Is the exhaust air, in particular if it is fed back into the work rooms, adequately cleaned?
Is the area complied with Workplace Exposure Limit (WEL)?
Have all means been exploited in order to prevent substances from being released?
Are devices provided to collect material that is falling down or being released?
Is the collection device robust, easily accessible, simple to empty and to operate?
Can the collection device be emptied in a dust-free manner?
Is falling wet or paste-like material collected or contained and disposed of as quickly as possible?
Are granulates, pellets or tablets prevented from lying on the ground and being crushed by being stepped on?
Are stored bagged materials protected by an impact protector?
Can bags be emptied and compressed in a dust-free manner?
Have the employees and supervisors been trained on the dust-free disposal of wastes?
Overall Observations and Recommendations