Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 6 · column 5 of 6 · from the scan, no model involved
The state and the Park Service diverge over the issue of how much pollution is too much. The federal Clean Air Act sets acceptable levels for airborne pollutants at a level much higher than what park officials consider safe, and Virginia follows these guidelines.
The park’s zero tolerance attitude is not accepted by the state, says Dan Salkovitz, an engineer with the Virginia Department of
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