EPA LEAD RISK ASSESSOR CERT EXAM QUESTIONS WITH CORRECT ANSWERS

Ug/g - microgram per gram Ug/ft2 - microgram per foot square (dust sampling) Mg/cm2 - milligrams per centimeter squared (xrf) Ug/dl - microgram per deci-liter Ug/m3 - microgram per deci-liter (quantity in blood) 1% - 10,000 ppm Allowed quantity of lead in dry surface paint when testing with xrf. - 1.0 mg/cm2 Allowed quantity of lead in dry surface paint when testing with paint chip - 5000 ppm Allowed quantity of lead in dry surface paint by weight - .5% = 5000ppm Lead quantities for dust clearance from floors/carpet - 40 ug/ft2 Lead quantities for dust clearance from furniture - 40 ug/ft2 Lead quantities for dust clearance from window sills - 250 ug/ft2 Lead quantities for dust clearance from window wells - 400 ug/ft2 Lead quantities for dust clearance from outside concrete - 800 ug/ft2 Lead quantities for soil clearance in contact areas - 400 ppm Lead quantities for soil clearance in non-contact areas - 1200 ppm Allowable lead quantity in water - 15 ppb/liter, or 15 mgl Lead blood level of concern for children - 5 ug/dl Niosh lead blood level of concern - 25 ug/dl Osha employee lead blood level of concern - 40 ug/dl Osha medical removal lead blood level - 50 ug/d? Lead paint 1978 level allowed - .06%; 600 ppm Current level lead allowed in paint - .009%; 90 ppm Lead paint allowed in all other consumer products - .01%; 100 ppm Hazardous waste toxic characteristic leaching procedure (tclp) - 5 ppm The use of lead based paint exceeding .06% was banned - in 1978 for residential housing. T/f the concentration of lead paint in deteriorating housing must be greater than 1 mg/cm2 by xrf to pose a threat to workers doing renovation or abatement practices. - false Title x does not apply to; - bridges and steel structure; hotels and motels rented less than 100 days and commercial complexes. What is the primary objective of a lead paint risk assessment? - to discover lead hazards