
Philadelphia Air Quality Index below 100 by...?
Resolves Jul 21, 2026·$355 24h vol
$355 total volume
July 21
84%+33.5%
OutcomeYesNo24h Vol
July 21
—
July 20
—
July 19
$60
July 18
$295
Order Book
July 21
PriceSharesTotal
99.0¢221$219
98.0¢129$126
97.0¢25$24
85.0¢20$17
no trades yet
3.0¢ spread82.0¢20$16
80.0¢20$16
6.0¢7$0
5.0¢10$1
3.0¢127$4
2.0¢200$4
1.0¢32$0
$41 bids$386 asks
Resolution Criteria
This market will resolve to "Yes" if "Philadelphia" 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=pennsylvania. To get to the figures used to resolve this market, select the "Historical Air Quality" tab, then find the finalized figure in the "Philadelphia" 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.
July 21
84%