| µg/m³ | micrograms per cubic metre |
| µm | micrometre |
| AAQG | Ambient Air Quality Guidelines |
| AS/NZS | Australian / New Zealand Standard |
| BAM | beta attenuation monitor |
| BaP | benzo(a)pyrene |
| BS EN | British Standards Institution European Norm standard |
| CFR | United States Code of Federal Regulations (40 CFR 51 is the same as Title 40, Part 51 of the CFR) |
| CO | carbon monoxide |
| DAS | data acquisition system / datalogger |
| FDMS | filter dynamics measurement system |
| H2S | hydrogen sulphide |
| Hi-vol | high-volume sampler |
| mg/m³ | milligrams per cubic metre |
| NAQWG | National Air Quality Working Group |
| NES | national environmental standards |
| NIWA | National Institute of Water and Atmospheric Research Limited |
| NMHC | non-methane hydrocarbon |
| NO | nitric oxide |
| NO2 | nitrogen dioxide |
| NOx | oxides of nitrogen (eg, nitrogen dioxide and nitrous oxide) |
| NZST | New Zealand Standard Time |
| O3 | ozone |
| PAH | polycyclic aromatic hydrocarbon |
| PM2.5 | particulate matter with an aerodynamic diameter of 2.5 microns or less |
| PM10 | particulate matter with an aerodynamic diameter of 10 microns or less |
| PMT | photomultiplier tube |
| ppb | parts per billion |
| ppm | parts per million |
| RMA | Resource Management Act 1991 |
| SO2 | sulphur dioxide |
| TEOM | tapered element oscillating microbalance |
| TSP | total suspended particulate |
| USEPA | United States Environmental Protection Agency |
| UV | ultraviolet |
| VOC | volatile organic compounds |
|
WHO |
World Health Organization |