Chicago Air Quality Index below 100 by...?

This market will resolve to "Yes" if "Chicago" has a PM2.5 Air Quality Index of below 100 between July 17, 2026 and the specified date. Otherwise, this market will resolve to "No". This market's resolution source will be https://www.airnow.gov/state/?name=illinois. To get to the figures used to resolve this market, select the "Historical Air Quality" tab, then find the finalized figure for the"Chicago" row under the "Daily AQI for PM2.5" column. This market may remain open for two days after the specified date to confirm the daily AQI figures for the specified timeframe. If the figures remain unavailable, another credible resolution source will be chosen.