Lead-based paint is defined by 0.05% lead by weight paired with which mg/cm2 value?

Lead-based paint is defined by 0.05% lead by weight paired with which mg/cm2 value?

• A. 0.1% by weight / 2.0 mg/cm2
• B. 0.01% by weight / 0.5 mg/cm2
• C. 0.5% by weight / 5 mg/cm2
• D. 0.05% by weight / 1.0 mg/cm2

Answer: (D)

Lead-based paint is identified by two criteria: the amount of lead in the paint itself (by weight) or the amount of lead on the surface per area (lead loading). The commonly used surface-loading threshold is 1.0 mg of lead per square centimeter. So, when a problem pairs a lead content by weight with a surface loading value, the valid pairing is the one that uses the 1.0 mg/cm2 threshold, since that matches the recognized criterion for lead-based paint hazard. The other options propose different mg/cm2 values that do not meet this standard, even if their weight-percent figures vary.

Lead-based paint is identified by two criteria: the amount of lead in the paint itself (by weight) or the amount of lead on the surface per area (lead loading). The commonly used surface-loading threshold is 1.0 mg of lead per square centimeter. So, when a problem pairs a lead content by weight with a surface loading value, the valid pairing is the one that uses the 1.0 mg/cm2 threshold, since that matches the recognized criterion for lead-based paint hazard. The other options propose different mg/cm2 values that do not meet this standard, even if their weight-percent figures vary.