| Acronym | Meaning |
| CHA | Concept Hazard Analysis |
| PFI | Pulsed Field Ionization |
| ECDL | External-cavity Diode Laser |
| PCM | Phase-change Medium |
| CLD | Certainly Lethal Dose |
| PHF-OCE | Perturbative Hartree-Fock One-center Expansion |
| DON | Dissolved Organic Nitrogen |
| CIRAC | Canadian Institute For Research In Atmospheric Chemistry |
| NIWG | National Interagency Work Group |
| LAMP | Laser Ablation Microprobe |