| Title | Authors | Year |
|---|---|---|
| Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test |
Kühn, R ;… |
1989 |
| Effects of ammonia emission on epiphytic lichen vegetation |
DeBakker, A… |
1989 |
| Acid rain and eggshells |
Drent, P.J… |
1989 |
| Acidification and Otter (Lutra lutra) Distribution in Scotland |
Mason, C.F… |
1989 |
| Lichen Recolonization in London under Conditions of Rapidly Falling Sulfur-Dioxide Levels, and the Concept of Zone Skipping. |
Hawksworth… |
1989 |
| A comparison of plant toxicities of some industrial chemicals in soil culture and soilless culture |
Adema, D ;… |
1989 |
| Indigenous and cultivated plants as bioindicators |
Weinstein,… |
1989 |
| Water and the Environment. Circular 7/89 |
Department… |
1989 |
| Unifying nutrient-chlorophyll relationships in lakes. |
Prairie, Y.… |
1989 |
| Surface Waters (Dangerous Substances) (Classification) Regulations No 2286 |
HMSO, |
1989 |