| Acronym | Meaning |
| GDR | Geophysical Data Record |
| IAEG | International Association Of Engineering Geology |
| AHR | Aryl Hydrocarbon Receptor |
| PSNS | Pretreatment Standards For New Sources |
| CA | Corrective Action |
| CLSM | Controlled Low Strength Material |
| QAMB | Quality Assurance Materials Bank (USEPA) |
| BS | Breathing Sphere (approxn. In Mol.-scattering Calcns.) |
| FAST | Fugitive Assessment Sampling Train |
| CLD | Certainly Lethal Dose |