1. Eliminating and Controlling Dust & Noise Hazards July 2002

2. 194 EXPOSURE CONTROLS

3. 195 EFFECTIVE EXPOSURE CONTROL *Controls the hazard - reduces health threat *Promotes ability to work in comfort *Protects all potentially exposed workers The control itself should not create a hazard.

4. 196 POINTS OF CONTROL Miner Path Source of contaminant

5. 197 TYPES OF CONTROLS ENGINEERING ADMINISTRATIVE

6. 198 Preventing Hazard Generation * ENGINEERING * SUBSTITUTION * PROCESS CHANGE * PURCHASE EQUIPMENT THAT WON’T PRODUCE HAZARDS

7. 199 Engineering Controls *Design right to start with! *Redesign as necessary *Maintain *Utilize *Sample to determine effectiveness *Train the workers *Update with technology changes

8. 200  ENGINEERING REDESIGN EXAMPLES AUTOMATE PARTS OF THE PROCESS FOR EXAMPLE: COMPUTERIZED LOADING

9. 201 Engineering Controls l Operator redesigns crusher controls; puts operator in booth. l Reduce speed of moving parts. l Redesign spouts in bagging. l Use water, mist or fog sprays. l Replace metal parts with nonmetal parts.

10. 202 Engineering Controls (used after hazard is generated) l Ventilation »General »Dilution Ventilation »Local Exhaust

11. 203 LOCAL EXHAUST VENTILATION *HOODS *HOODS - Captures substance *DUCT WORK *DUCT WORK - Carries substance away *FANS *FANS - Move AIR through duct work *AIR CLEANER *AIR CLEANER - Removes substance and removes it before air returns to environment *MAKE-UP AIR *MAKE-UP AIR - Replace air exhausted by system

12. 204 Check seals Regular Inspection and Maintenance *Is Absolutely Necessary!

13. 205 Something’s not right!

14. 206 ENCLOSURE & ISOLATION Environmental Cab

15. 207 Engineer Out Path Noise with Barriers  INCREASE DISTANCE *AT THE SOURCE *Select quiet equipment *Reduce impact or impulsive forces *Reduce speed in machines *IN THE TRANSMISSION PATH Separate noise and receiver Use sound absorbing materials

17. 209 Work Practices * Vacuums with HEPA filters * NO dry sweeping * Use wet methods X

18. 210 ADMINISTRATIVE CONTROLS *ROTATE WORKERS / WORK SCHEDULES *ESTABLISH REGULATED AREAS *WARNING SIGNS & BARRICADES *EDUCATION & TRAINING *ELIMINATE THE JOB

19. 211 HAZARD TRAINING INCLUDES : *HAZARDS OF MATERIAL OR PHYSICAL AGENT *HAZARD RECOGNITION *EFFECTIVE CONTROL MEASURES *PPE PROGRAMS INVOLVES: -SUPERVISORS -MINERS

20. 212 ACCOMPLISHED BY: ; FORMAL TRAINING ; HEALTH AND SAFETY MEETINGS ; BOOKLETS ; SIGNS AND LABELS

21. 213 NOISE HAZARDOUS AREA HEARING PROTECTION REQUIRED WARNING SIGNS

22. 214 SUPERVISOR EDUCATION WHEN / WHERE TO GET HELP LEGAL / CORPORATE RESPONSIBILITIES COST / BENEFIT INFORMATION

23. 215 MINER EDUCATION @SAFETY AND HEALTH HAZARD EDUCATION @OPERATING PROCEDURES - EFFECTIVE USE OF CONTROLS @UNDERSTANDING MAINTENANCE NEEDS

24. 216 MINE OPERATOR MUST BE COMMITTED ! 4 FURNISH SAFE / HEALTHY FACILITIES 4 TRAIN MINERS 4 CONTROL HAZARDS 4 MONITOR THE WORKPLACE

25. 217 MINERS : *OBSERVE RULES - * work practices, cleanup, hygiene * NOTIFY SUPERVISORS OF HAZARDOUS CONDITIONS AND PROBLEMS WITH CONTROL MEASURES * MAINTENANCE * USE REQUIRED PPE

26. 218 CONTROL EXPOSURES AT POINT OF WORKER * JOB ROTATION * ENCLOSURES/Booths/Cabs * TRAINING & EDUCATION * PERSONAL MONITORING * MAINTENANCE PROGRAMS

27. 219 PERSONAL PROTECTIVE EQUIPMENT  HEALTH HAZARD CONTROL 3RESPIRATORS 3HEARING PROTECTION 3COVERALLS, GLOVES, BOOTS, GLASSES, HARD HATS

28. 220 Use PPE l WHEN……. l Other controls are being developed and installed l Additional protection is needed l The hazards can’t be controlled any other way

29. 221 l AIRBORNE CONTAMINANTS: 56/57.5005 l NOISE: Part 62 l DRILL DUST CONTROL: 58.620 MSHA REGULATIONS 30 CFR