United States. Environmental Protection Agency. Health and Environmental Impacts Division

• Final regulatory impact analysis (RIA) for the SO₂ National Ambient Air Quality Standards (NAAQS)
• Integrated review plan for the national ambient air quality standards for lead
• Integrated review plan for the national ambient air quality standards for lead, external review draft
• Ozone national ambient air quality standards, scope and methods plan for welfare risk and exposure assessment
• Particulate matter urban-focused visibility assessment
• Policy assessment for the review of the lead national ambient air quality standards
• Policy assessment for the review of the particulate matter national ambient air quality standards
• Quantitative health risk assessment for particulate matter
• Quantitative risk and exposure assessment for carbon monoxide
• Quantitative risk and exposure assessment for carbon monoxide--amended
• Regulatory impact analysis for the final Mercury and Air Toxics Standards
• Regulatory impact analysis for the proposed standards of performance for greenhouse gas emissions for new stationary sources