
Polymarket shows market prices. Foretrace adds AI probability estimates, opposing evidence and a price-dependent outcome or pass decision for each open market.
Sampled market observations, not AI forecasts. Lines connect available observations. Legend values are current provider quotes; chart points may be older.
These are market-implied probabilities, not AI forecasts. A displayed quote may differ from the price available for your order.
This market is closed. Its historical data remains available.
How research worksThis market will resolve to "Yes" if "Columbus" 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=ohio. To get to the figures used to resolve this market, select the "Historical Air Quality" tab, then find the finalized figure in the "Columbus" 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.
This market is closed. Its historical data remains available.
How research worksThis market will resolve to "Yes" if "Columbus" 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=ohio. To get to the figures used to resolve this market, select the "Historical Air Quality" tab, then find the finalized figure in the "Columbus" 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.
Resolution sourceThis market is closed. Its historical data remains available.
How research worksThis market will resolve to "Yes" if "Columbus" 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=ohio. To get to the figures used to resolve this market, select the "Historical Air Quality" tab, then find the finalized figure in the "Columbus" 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.
Resolution sourceThis market is closed. Its historical data remains available.
How research worksThis market will resolve to "Yes" if "Columbus" 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=ohio. To get to the figures used to resolve this market, select the "Historical Air Quality" tab, then find the finalized figure in the "Columbus" 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.
Resolution sourceRetrieved 10/3/2026, 9:15:54 PM UTC. Provider data is cached for up to 60 seconds. The upstream quote timestamp can be older.