| Acronym | Meaning |
| NARSTO | North American Research Strategy For Tropospheric Ozone |
| APCI | Atm. Pressure Chem. Ionization |
| CTBTO | Comprehensive Nuclear-Test-Ban Treaty Organization |
| HAART | Highly Active Antiretroviral Therapy |
| XEDS | X-ray Energy Dispersive Spectroscopy |
| EASC | Extended Anaerobic Sludge Contact |
| MAGICC | Model For The Assessment Of Greenhouse-gas Induced Climate Change |
| TTLC | Total Threshold Limit Concentration |
| QDPT | Quasi-degenerate Perturbation Theory |
| ABSORB | Arctic Beaufort Sea Oilspill Research Body |