LEAD ABATEMENT EXAM WITH COMPLETE SOLUTIONS

10 ug/ft2 - ANSWER-floors 10 ug/ft2 - ANSWER-interior windows, sills or stools 100 ug/ft2 - ANSWER-window troughs or window well 50 ug/m3 - ANSWER-Osha permissible exposure limit 30 ug/m3 - ANSWER-Osha action level - Requires 2 hr training & 1 blood test Drinking Water Levels - ANSWER-15 ppb (parts-per-billion) Lead soil levels - ANSWER-400 ppm (parts-per-million) Lead soil Levels (2) - ANSWER-5000 ppm (parts-per-million) HUD requires abatement of soil hazard BLOOD LEAD LEVELS - Children - ANSWER-5 ug/dl requires investigation BLOOD LEAD LEVELS - Children (2) - ANSWER-20 ug/dl = Lead poisoned Blood Lead Levels Adults - ANSWER-20 ug/dl = concern Blood Lead Levels Adults (2) - ANSWER-30 ug/dl = removed from work Blood Lead Levels Adults (3) - ANSWER-15 ug/dl = back to work level Defined forms of abatement - ANSWER-Removal, Enclosure, Encapsulation How long does encapsulant last? - ANSWER-20 years Lead Hazards! - ANSWER-1. Contaminated Soil 2. Contaminated Dust 3. Lead Based Paint 4. LBP Friction Surface 5. LBP Impact surface 6. LBP chewable surface