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Environmental Quality 
Exposure to pollutants in the air can directly affect health status and is linked to premature death, cancer, heart disease, and respiratory disease.
 
Exposure to Unhealthy Outdoor Air
Trend in outdoor air quality from 2006–08 to 2012–14.
2006–08: 2.203 billion
2007–09: 1.876 billion
2008–10: 1.399 billion
2009–11: 1.252 billion
2010–12: 1.246 billion
2011–13: 1.208 billion
2012–14: 0.982 billion
HP2020 Target: 1.983 billion
Data source: Air Quality System (AQS), EPA.
 
Air Quality Index (AQI) Exceeding 100
In 2012–14, the AQI exceeded 100 for 0.981 billion AQI-weighted people days.
Most Recent: 0.982 billion
HP2020 Target: 1.983 billion
This objective has exceeded the target.
Data source: Air Quality System (AQS), EPA.
 
Children Aged 3–11 Years Exposed to Secondhand Smoke
In 2009–12, 41.3% of children aged 3–11 years were exposed to secondhand smoke.
Most Recent: 41.3%
HP2020 Target: 47.0%
This objective has exceeded the target.
Data source: National Health and Nutrition Examination Survey (NHANES), CDC/NCHS.