Important considerations for establishing a secondary ozone standard to protect vegetation

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · JAPCA, the International Journal of Air Pollution Control and Hazardous Waste Management; (USA)

DOI:https://doi.org/10.1080/08940630.1989.10466588· OSTI ID:7156072

Lefohn, A S ^[1]; Runeckles, V C ^[2]; Krupa, S V ^[3]; Shadwick, D S ^[4]

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1. A.S.L. and Associates, Helena, MT (USA)
2. Univ. of British Columbia, Vancouver (Canada)
3. Univ. of Minnesota, St. Paul (USA)
4. NSI Technology Services Corp., Research Triangle Park, NC (USA)

Based on recent evidence published in the literature, as well as retrospective studies using data from the National Crop Loss Assessment Network (NCLAN), cumulative indices can be used to describe exposures of ozone for predicting agricultural crop effects. However, the mathematical form of the standard that may be proposed to protect crops does not necessarily have to be of the same form as that used in the statistical or process oriented mathematical models that relate ambient ozone exposures with vegetation effects. This paper discusses the limitations associated with applying a simple statistic that may take the place of a more biologically meaningful exposure parameter. While the NCLAN data have been helpful in identifying identifying indices that may be appropriate for establishing exposure-response relationships, the limitations associated with the NCLAN protocol need to be considered when attempting to apply these relationships in the establishment of a secondary national ambient air quality standard. The Weibull model derived from NCLAN experiments must demonstrate its generality and universal applicability. Furthermore, its predictive power must be tested using independent sets of field data.

• OSTI ID: 7156072
• Journal Information: JAPCA, the International Journal of Air Pollution Control and Hazardous Waste Management; (USA), Journal Name: JAPCA, the International Journal of Air Pollution Control and Hazardous Waste Management; (USA) Vol. 39:8; ISSN JIJME; ISSN 0894-0630
• Country of Publication: United States
• Language: English

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