Which sampling criterion is used for lead in dust?

Which sampling criterion is used for lead in dust?

• A. Soil Sampling Criteria
• B. Dust Sampling Criteria
• C. Paint Chip Sampling Criteria
• D. Air Sampling Criteria

Answer: (B)

Lead on indoor surfaces comes primarily from settled dust, which people can ingest through hand-to-mouth contact. Because of that, the standard approach for evaluating exposure uses dust sampling criteria. This set of criteria is designed for collecting and analyzing dust wipe samples from surfaces such as floors and window sills, and the results are reported as the amount of lead per area (for example, micrograms of lead per square foot). It ensures the sampling method, area defined, and analytical approach are consistent so decisions about remediation or clearance levels are meaningful. Other media have their own criteria—for outdoor exposure, soil sampling criteria apply; to assess lead content in painted material itself, paint chip sampling criteria are used; for inhalation risk, air sampling criteria are used. Each criterion matches the specific medium being evaluated, and dust-specific criteria are the appropriate choice when the focus is lead in dust.

Lead on indoor surfaces comes primarily from settled dust, which people can ingest through hand-to-mouth contact. Because of that, the standard approach for evaluating exposure uses dust sampling criteria. This set of criteria is designed for collecting and analyzing dust wipe samples from surfaces such as floors and window sills, and the results are reported as the amount of lead per area (for example, micrograms of lead per square foot). It ensures the sampling method, area defined, and analytical approach are consistent so decisions about remediation or clearance levels are meaningful.

Other media have their own criteria—for outdoor exposure, soil sampling criteria apply; to assess lead content in painted material itself, paint chip sampling criteria are used; for inhalation risk, air sampling criteria are used. Each criterion matches the specific medium being evaluated, and dust-specific criteria are the appropriate choice when the focus is lead in dust.