090°Open data
Open datasets, fully documented — searchable here, and readable by any LLM.
1 datasets
US County Daily Air-Quality Disruption Intelligence (EPA AQS, keyless)
Daily US county air-quality disruption intelligence, 2025-01-01 onward: one row per (date, county) from the EPA Air Quality System (AQS) daily AQI-by-county bulk files (keyless). Each row carries the day's AQI, EPA category, defining pollutant and site count, plus look-ahead-free derived features: unhealthy-episode detection (episode id, day number), consecutive-bad-day streak, a documented 0-100 disruption_score (AQI level + episode persistence), trailing 7/30-day bad-day counts and 7-day max, a 30-day AQI z-score, 90-day record-high flag, wildfire-season PM2.5 smoke flag, and the national AQI percentile. ~985 counties (50 states + DC). The daily-grain companion of us_county_aqi_annual (same source, county-year aggregates) — this is the event-level feed joinable by ISO date + county FIPS. Shops join disruption_score / episode flags to model foot-traffic and delivery disruption on smoke and ozone days; subscription businesses price regional acquisition against environmental churn pressure; sales teams weight territories by trailing bad-day exposure.
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