| Nitrogen leached from soil, total, 1990-2012 | Environmental Reporting | Ministry for the Environment | Creative Commons Attribution 3.0 New Zealand | Table | Table | 6680 | 104 | ||
| Nitrate leaching from livestock time series 1990–2017 | Environmental Reporting | Ministry for the Environment | Creative Commons Attribution 4.0 International | Table | Table | 3940 | 48 |