aqs_quarterly_summary_by_site
Retrieve quarterly air quality data for specific monitoring sites to analyze seasonal patterns and trends using aggregated measurements by calendar quarter.
Instructions
Retrieve quarterly summary data for a specific air quality monitoring site. Quarterly summaries aggregate measurements by calendar quarter, providing observation counts, arithmetic means, and maximum values. Useful for analyzing seasonal patterns and trends at individual monitoring locations.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| No | Email address for API authentication. Optional if AQS_EMAIL environment variable is set. | ||
| key | No | API key for authentication. Optional if AQS_API_KEY environment variable is set. | |
| param | Yes | Parameter code (pollutant). Common codes: 44201 (Ozone), 88101 (PM2.5), 81102 (PM10), 42401 (SO2), 42101 (CO), 42602 (NO2). Up to 5 comma-separated codes allowed. | |
| bdate | Yes | Begin date in YYYYMMDD format. Must be in the same calendar year as edate. | |
| edate | Yes | End date in YYYYMMDD format. Must be in the same calendar year as bdate. | |
| state | Yes | Two-digit FIPS state code (e.g., "06" for California, "36" for New York). | |
| county | Yes | Three-digit FIPS county code (e.g., "037" for Los Angeles County). | |
| site | Yes | Four-digit AQS site number within the county. |