| Title | Authors | Year |
|---|---|---|
| The variation in the acidity of ground and surface waters in Northern Ireland |
Jordan, C… |
1990 |
| Growth, ectomycorrhizae and nonstructural carbohydrates of loblolly pine seedlings exposed to ozone and soil water defect |
Meier, S.;… |
1990 |
| Calculated rates of soil acidification of intensively used grassland in the Netherlands. |
Oenema, O… |
1990 |
| Air pollution and tree-dwelling aphids. Population Dynamics of Forest Insects |
McNeill, S… |
1990 |
| Water and the Environment. Circular 7/89 |
Department… |
1989 |
| Environmental Health Criteria 86 Mercury- Environmental Aspects |
WHO, |
1989 |
| Indigenous and cultivated plants as bioindicators |
Weinstein,… |
1989 |
| Unifying nutrient-chlorophyll relationships in lakes. |
Prairie, Y.… |
1989 |
| Peat acidification in Scotland |
Skiba, U.;… |
1989 |
| Surface Waters (Dangerous Substances) (Classification) Regulations No 2286 |
HMSO, |
1989 |