| Title | Authors | Year | 
|---|---|---|
| Acid rain and eggshells | 
                               Drent, P.J…  | 
                                                                                        1989 | 
| Environmental Health Criteria 85 Lead- Environmental Aspects | 
                               WHO,  | 
                                                                                        1989 | 
| Acidification and Otter (Lutra lutra) Distribution in Scotland | 
                               Mason, C.F…  | 
                                                                                        1989 | 
| Interacting effects of soil acidity and canopy cover on the species composition of field layer vegetation in oak/hornbeam forests | 
                               Tyler, G.…  | 
                                                                                        1989 | 
| Forest decline and Air Pollution | 
                               Schulze, E.…  | 
                                                                                        1989 | 
| A comparison of plant toxicities of some industrial chemicals in soil culture and soilless culture | 
                               Adema, D ;…  | 
                                                                                        1989 | 
| Environmental Health Criteria 86 Mercury- Environmental Aspects | 
                               WHO,  | 
                                                                                        1989 | 
| Water and the Environment. Circular 7/89 | 
                               Department…  | 
                                                                                        1989 | 
| Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test | 
                               Kühn, R ;…  | 
                                                                                        1989 | 
| Deposition of atmospheric pollutants on forests | 
                               Fowler, D…  | 
                                                                                        1989 |