The risk estimates from the vast majority of the short-term studies include the effects of only one or two-day exposure to air pollution.
Risk estimates include effects from 1 or 2 days of pollution exposure.
In addition to following up on significant reported findings and recommendations from previous financial audits or attestation engagements, auditors should consider significant findings identified in performance audits and other studies if these findings relate to subject matter or assertions of the attestation engagement.