| PARVQ | NAME |
|---|---|
| < | Less Than |
| <= | Less Than or Equal To |
| = | Equal To |
| > | Greater Than |
| >= | Greater Than or Equal To |
| DN | DNQ - Detected, Not Quantified |
| IN | Internal Standard |
| NA | Not Available - Result Not Available |
| ND | Not Detected |
| NR | Not Reported - Data Not Reported |
| OS | Off Scale |
| PA | Present/Absent |
| RF | Response Factor |
| SU | Surrogate |
| TI | Tentatively Identified Compound |