2021 Owens Corning Sustainability Report | Reducing Our Environmental Footprint | Air Quality Management | 164 AIR QUALITY MANAGEMENT PERFORMANCE Across all our operations around the world, we are working to reduce a wide range of air emissions. By working to achieve the goals we have set for ourselves, we are contributing to a healthier environment in the areas where we operate — and beyond. We manage, track, and report VOC air emissions against our baseline year of 2018. In 2021, in addition to the aggregate intensity reductions discussed earlier in the chapter, we saw a 2% reduction in absolute VOC air emissions. We manage, track, and report PM2.5 emissions against our baseline year of 2018. In 2021, in addition to the aggregate intensity reductions discussed earlier in the chapter, we saw a 3% increase in absolute in PM2.5 emissions. Volatile Organic Compounds (VOC) Footprint  VOC Emissions  Aggregate Intensity Percentage ― 2030 Goal ABSOLUTE METRIC TONS INTENSITY PERCENTAGE 2018 2019 2020 2021 Absolute Metric Tons 2,327 2,202 2,053 2,389 Aggregate Intensity Percentage 100 94 89 86 Aggregate Intensity (Metric Tons Normalized by Revenue, in Millions) 0.326 0.306 0.290 0.280 Fine Particulate Matter (PM2.5) Footprint 500 1000 1500 2000 2500 3000 20 40 60 80 10 0 12 0  PM2.5 Emissions  Aggregate Intensity Percentage ― 2030 Goal ABSOLUTE METRIC TONS INTENSITY PERCENTAGE 2018 2019 2020 2021 Absolute Metric Tons 2,362 2,248 2,117 2,323 Aggregate Intensity Percentage 100 95 90 82 Aggregate Intensity (Metric Tons Normalized by Revenue, in Millions) 0.331 0.313 0.299 0.273 50 0 1000 1500 2000 2500 3000 20 40 60 80 10 0 12 0