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Science 21 June 1963:
Vol. 140. no. 3573, pp. 1317 - 1318
DOI: 10.1126/science.140.3573.1317
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Articles

Ozone Damage: Protection for Plants

J. L. Jones 1

1 31 West Union Street, Pasadena, California

Tobacco plant leaves treated with dried particulate charcoal, diatomaceous earth, and powdered ferric oxide so that a covering formed on the leaves were relatively undamaged by comparison with untreated controls when exposed to as much as 0.9 part of ozone per million in the atmosphere. A theory is offered to explain the results.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)