CLEAR county synthesis: PUEBLO

Stored model output

# 1. Executive screening summary

Pueblo County has an annual maximum AQI of 143, with the highest ozone AQI recorded at 143 and the highest PM2.5 AQI at 75. The average PM2.5 concentration is 4.692 µg/m³, and the county had 366 days of PM2.5 monitoring. There were 8 days classified as unhealthy for sensitive groups, with no days classified as unhealthy. Ozone monitoring occurred on 354 days, with 354 ozone-related data rows.

# 2. Industrial profile

Pueblo County has 23 facility candidates, with 20 distinct owners and 5 distinct NAICS codes. The top facility owners include ALCO, PUEBLO DEPOT ACTIVITY DEVELOPMENT AUTHORITY, and A.P. GREEN REFRACTORIES (WAS GENERAL RE). The top NAICS codes are 212321, 332999, and 212323. The county also has 23 geocoded facilities, with 23 facilities having ZIP codes.

# 3. PM2.5 and ozone signal

The annual maximum AQI for PM2.5 is 75, and for ozone is 143. The average PM2.5 concentration is 4.692 µg/m³, with 366 days of PM2.5 monitoring. Ozone monitoring occurred on 354 days, with 354 ozone-related data rows. The highest ozone AQI was recorded on July 24, 2024, with an AQI of 143.

# 4. Highest PM2.5 dates

The highest PM2.5 AQI occurred on October 8, 2024, with an average arithmetic mean of 22.14 µg/m³ and a maximum AQI of 75. Other high PM2.5 dates include October 6, 2024, with an average arithmetic mean of 16.65 µg/m³ and a maximum AQI of 65, and October 7, 2024, with an average arithmetic mean of 16.21 µg/m³ and a maximum AQI of 64.

# 5. Confounders and missing data

Potential confounders include wildfire smoke, regional transport, meteorology/wind direction, temperature inversion, agricultural dust, oil and gas activity, traffic/diesel corridors, monitor siting limitations, data completeness, and seasonal patterns. Missing data include facility-level emissions not yet parsed, permit violation records not yet structured, hospitalization data not yet loaded, wind/smoke data not yet loaded, no causal model fitted, and no source apportionment performed.

# 6. What cannot be concluded

No causation, permit violation, enforcement priority, compliance status, or health attribution can be concluded from the provided evidence. The data does not support conclusions about the sources of air pollution or their health impacts.

# 7. Recommended next data pulls and policy addendum candidates

Additional data pulls should include facility-level emissions, structured permit violation records, hospitalization data, and wind/smoke data. Policy addendum candidates may include further investigation into industrial activity, monitoring improvements, and regional air quality coordination.

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