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Legend (OAR_OAP/RagweedPollenSeason)

Change in Ragweed Pollen Season, 1995–2015 (0)
-1 day -1 day
+6 days +6 days
+11 days +11 days
+15 days +15 days
+18 days +18 days
+21 days +21 days
+24 days +24 days
+25 days +25 days