EPA Lead Risk Assessor Cert. Exam

ug/g - Answer- microgram per gram ug/ft2 - Answer- microgram per foot square (dust sampling) mg/cm2 - Answer- milligrams per centimeter squared (XRF) ug/dL - Answer- microgram per deci-liter ug/m3 - Answer- microgram per deci-liter (quantity in blood) 1% - Answer- 10,000 ppm Allowed quantity of lead in dry surface paint when testing with XRF. - Answer- 1.0 mg/cm2 Allowed quantity of lead in dry surface paint when testing with paint chip - Answer- 5000 ppm Allowed quantity of lead in dry surface paint by weight - Answer- .5% = 5000ppm Lead Quantities for Dust Clearance from floors/carpet - Answer- 40 ug/ft2 Lead Quantities for Dust Clearance from furniture - Answer- 40 ug/ft2 Lead Quantities for Dust Clearance from window sills - Answer- 250 ug/ft2 Lead Quantities for Dust Clearance from window wells - Answer- 400 ug/ft2 Lead Quantities for Dust Clearance from outside concrete - Answer- 800 ug/ft2 Lead Quantities for Soil Clearance in contact areas - Answer- 400 ppm Lead Quantities for Soil Clearance in non-contact areas - Answer- 1200 ppm Allowable lead quantity in water - Answer- 15 ppb/liter, or 15 mgL Lead blood level of concern for children - Answer- 5 ug/dL NIOSH Lead blood level of concern - Answer- 25 ug/dL OSHA employee lead blood level of concern - Answer- 40 ug/dL OSHA medical removal lead blood level - Answer- 50 ug/d?