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 8 · column 1 of 7 · from the scan, no model involved
Air
From Page A1
pollution “accounts for 60 to 80 percent of the visibility impairment in the eastern parks.” Motor vehicle emissions arrive at the park carried by wind currents from the developmental sprawl of Northern Virginia, the Norfolk area and, increasingly, the Shenandoah Valley.
On ozone and its impact on vegetation, the NPS report notes, “Ground level ozone is one of the most widespread pollutants affecting vegetation and public health. . . plants are generally more sensitive to ozone than humans, and the effects range from visible injury on leaves, premature leaf loss, reduced photosynthesis, and reduced growth.”
The Shenandoah National Park’s web site shows photos of ozone injury to leaves of yellow poplar and common milkweed.
Ozone may be impacting
95.6%