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. 2009 Dec 10;10(1):122. doi: 10.1186/1465-9921-10-122

Figure 2.

Figure 2

Interaction between fruits and vegetables index and ozone levels (Q1-Q4) for IL8, FEV1 and FVC. Q1 = ≤ 25 ppb, max 8-h moving average Q4 = ≥ 38 ppb, max 8-h moving average.