Reuse
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Best air quality counties
Top 10 counties by annual good-day share, with attribution back to the ranking page.
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Worst air quality counties
Bottom 10 counties by annual good-day share, with attribution back to the ranking page.
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Open datasets card
Headline counts for the county, CBSA and state downloadable datasets.
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Per-county cards
One card per county at /embed/county/<slug>, linked from each county page.
Widget routes carry noindex,follow so they never compete with the canonical pages.
Compilations are CC BY 4.0; reuse with attribution.