| Title | Authors | Year |
|---|---|---|
| Epiphyte recolonization of oaks along a gradient of air pollution in south-east England, 1979-1990. |
Bates, J.W… |
1990 |
| Calculated rates of soil acidification of intensively used grassland in the Netherlands. |
Oenema, O… |
1990 |
| Eutrophication: assessment, research and management with special reference to Scotland's Freshwaters |
Bailey-… |
1990 |
| Effects of ammonia, ammonium sulphate and sulphur dioxide on the frost sensitivity of Scots pine (Pinus sylvestris L.) |
Dueck, T.A… |
1990 |
| Acid rain and eggshells |
Drent, P.J… |
1989 |
| Acidification and Otter (Lutra lutra) Distribution in Scotland |
Mason, C.F… |
1989 |
| A comparison of plant toxicities of some industrial chemicals in soil culture and soilless culture |
Adema, D ;… |
1989 |
| Water and the Environment. Circular 7/89 |
Department… |
1989 |
| Indigenous and cultivated plants as bioindicators |
Weinstein,… |
1989 |
| Surface Waters (Dangerous Substances) (Classification) Regulations No 2286 |
HMSO, |
1989 |