| Parameter | Description | Unit | Source |
|---|
| datetime | Date and Time | YYYY-MM-DD hh:mm | |
| temp | Air Temperature | °C (Degrees Celsius) | NOAA: Global Hourly - Integrated Surface Database (ISD) |
| dew | Dew Point Temperature | °C (Degrees Celsius) | NOAA: Global Hourly - Integrated Surface Database (ISD) |
| RH | Relative Humidity | % (Percent) | This value is calculated from temperature and dew point using the Magnus Formula a described in the Facilities Environmental Severity Classification Study (Page 22). |
| AH | Absolute Humidity | mg/m3 (Milligrams per Cubic Meter) | This value is calculated from temperature and dew point using the Magnus Formula a described in the Facilities Environmental Severity Classification Study (Page 22). |
| SO2 | Sulfur Dioxide (SO2) | ppb (Parts per Billion) | EPA: Air Quality System (AQS) |
| O3 | Ozone (O3) | ppm (Parts per Million) | EPA: Air Quality System (AQS) |
| Cl_wet | Chloride (Cl) | mg/L | Cl concentration NADP: National Trends Network (NTN) |
| Cl_dry | Chloride (Cl) | µg/m3 | Mean ambient particulate chloride (Cl) concentrationEPA: Clean Air Status and Trends Network (CASTNET) |
| Cl_chem | Chloride (Cl) | µg/m3 | DRYCHEM Chloride (Cl) concentration from Teflon filter EPA: Clean Air Status and Trends Network (CASTNET) |