| Acronym | Meaning |
| ERP | Environmental Review Process |
| NPA | Natural Population Analysis |
| AQCDS | Air Quality Criteria Documents |
| STIS | Space Telescope Imaging Spectrograph |
| IPPP | Iterative Pariser-Parr-Pople Method |
| ORAU | Oxford Radiocarbon Accelerator Unit (University Of Oxford) |
| HNLC | High-nutrient Low-chlorophyll |
| TACB | Texas Air Control Board |
| EIAP | Environmental Impact Analysis Process |
| SMD | Sauter Mean Diameter |