LEAD ABATEMENT TEST QUESTIONS AND ANSWERS

10 ug/ft2 floors 10 ug/ft2 interior windows, sills or stools 100 ug/ft2 window troughs or window well 50 ug/m3 Osha permissible exposure limit 30 ug/m3 Osha action level - Requires 2 hr training & 1 blood test Drinking Water Levels 15 ppb (parts-per-billion) Lead soil levels 400 ppm (parts-per-million) Lead soil Levels (2) 5000 ppm (parts-per-million) HUD requires abatement of soil hazard BLOOD LEAD LEVELS - Children 5 ug/dl requires investigation BLOOD LEAD LEVELS - Children (2) 20 ug/dl = Lead poisoned Blood Lead Levels Adults 20 ug/dl = concern Blood Lead Levels Adults (2) 30 ug/dl = removed from work Blood Lead Levels Adults (3) 15 ug/dl = back to work level Defined forms of abatement Removal, Enclosure, Encapsulation How long does encapsulant last? 20 years Lead Hazards! 1. Contaminated Soil 2. Contaminated Dust 3. Lead Based Paint 4. LBP Friction Surface 5. LBP Impact surface 6. LBP chewable surface Lead Routes Of Entry 1. Inhalation 2. Ingestion Who must conclude all lead hazard control activities? A Lead Inspector or Risk Assessor 2 Health Effects from Lead Exposure 1. Coma 2. Reproductive Systems Engineering Control Used to Reduce Lead Exposure HEPA Vac & AFD When does OSHA require initial air monitoring for lead? At the beginning Only managers and supervisors can see lead medical records FALSE When In Bloodstream Lead can last up to: 30 Days When in Soft Tissue lead can last up to: 6-8 Months When in Bones and Teeth lead can last up to: 30 Years Short term exposure to lead is called? Acute Long term exposure to lead is called? Chronic 4 Activities Prohibited on Job 1. Power Washing 2. Dry Sanding 3. Smoking 4. Eating Caution Tape: Must remain up until clearance is achieved Until a negative initial determination OR negative negative exposure assessment is achieved, employees: Must wear suits and respirators until air monitoring results expose air is below the PEL On a low dust job: Plastic should be extended 6 feet in all directions from the surface. Exterior Plastic must be: Removed at the end of every day. Fit tests take place: Annually / Once a year. Three steps required for an interior lead clearance: Visual, Low, Dust wipe When conducting a clearance from in a 6 room house how many samples are collected ? 8 Samples When conducting a clearance from a 16 room house hoe many dust samples are collected? 8 samples If a worker is suffering heat stroke: Remove them from heat and call 9-1-1 Exterior lead abatement work should stop when: it is raining or winds are higher than 20 mph Testing for lead in blood: 1. Blood lead test (30 day indication) 2. Zinc Protoporphynn - ZPP (6-8 month indication) Methylene Chloride paint strippers are: Not allowed on lead jobs