N&O Index Card

Subject/Name: Air - Pollution

Article(s) Referenced In:

1. Environmental agency adjusts pollution limits. Picture. N&O, Feb-11-77, 35:1
2. Study points to pollution in tree deaths. N&O, Feb-19-77, 5-B:1
3. Suspect in pine deaths eyed for human effects. N&O, Feb-24-77, 37:4
4. Editorial: Tree killer may harm humans. N&O, Feb-25-77, 4:1

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