10 of the worst counties in the US for air pollution near public schools

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<19

>80

% non-white population

1. Allegheny County, Pennsylvania

2. Ada County, Idaho

3. Camden County, New Jersey

4. Canyon County, Idaho

5. Philadelphia County, Pennsylvania

6. Twin Falls County, Idaho

7. Bonneville County, Idaho

8. Hamilton County, Ohio

9. Cook County, Illinois

10. Multonah County, Oregon

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10

<19

>80

% non-white population

1. Allegheny County,

Pennsylvania

2. Ada County, Idaho

3. Camden County,

New Jersey

4. Canyon County, Idaho

5. Philadelphia County,

Pennsylvania

6. Twin Falls County, Idaho

7. Bonneville County, Idaho

8. Hamilton County, Ohio

9. Cook County, Illinois

10. Multonah County,

Oregon