| Title | Authors | Year | 
|---|---|---|
| Large Lakes: ecological structure and function | 
                               Kilham, S.S…  | 
                                                                                        1990 | 
| Acidic Deposition, its nature and impacts, Glasgow Conference Abstracts | 
                               Caporn, S.J…  | 
                                                                                        1990 | 
| The variation in the acidity of ground and surface waters in Northern Ireland | 
                               Jordan, C…  | 
                                                                                        1990 | 
| Successional changes in the soft-water macrophyte vegetation of (sub)atlantic, sandy, lowland regions during this century | 
                               Arts, G.H.P…  | 
                                                                                        1990 | 
| Environmental Health Criteria 86 Mercury- Environmental Aspects | 
                               WHO,  | 
                                                                                        1989 | 
| Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test | 
                               Kühn, R ;…  | 
                                                                                        1989 | 
| Acid rain and eggshells | 
                               Drent, P.J…  | 
                                                                                        1989 | 
| Deposition of atmospheric pollutants on forests | 
                               Fowler, D…  | 
                                                                                        1989 | 
| Acidification and Otter (Lutra lutra) Distribution in Scotland | 
                               Mason, C.F…  | 
                                                                                        1989 | 
| Effects of cadmium and PCBs on reproduction of the sea star Asterias rubens: aberrations in the early development | 
                               Besten, P.…  | 
                                                                                        1989 |