COOK COUNTY TRAILER
Site ID: 17-031-4002 · 41.8552°N, 87.7525°W
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Monitors
| Parameter | POC | First Year | Last Sample |
|---|---|---|---|
| Carbon monoxide | 1 | 1983 | 2012-12-31 |
| Sulfur dioxide | 1 | 1983 | 2014-12-31 |
| SO2 max 5-min avg | 1 | 2010 | 2014-12-31 |
| Nitric oxide (NO) | 1 | 1984 | 2025-09-09 |
| Nitrogen dioxide (NO2) | 1 | 1983 | 2025-09-30 |
| Nitrogen dioxide (NO2) | 2 | 1983 | 1984-12-26 |
| Oxides of nitrogen (NOx) | 1 | 1984 | 2025-09-09 |
| Ozone | 1 | 1983 | 2025-09-30 |