| Term | Definition |
|---|---|
| Acidification |
Acidification refers to acid deposition from the atmosphere, mainly in the form of rain. Emissions of SO2 and NOx can result in strong and damaging acids. Although there is currently no evidence of acid rain in New Zealand (MfE 2001), SO2 and NOx emissions are closely monitored and regarded as an important issue in New Zealand. |
| Anthropogenic Emissions |
These are emissions that result from human activities (e.g. the emissions from the combustion of petrol in an automobile) as opposed to emissions that occur naturally (biogenic emissions). |