| Title | Authors | Year | 
|---|---|---|
| Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test | 
                               Kühn, R ;…  | 
                                                                                        1989 | 
| Lichen Recolonization in London under Conditions of Rapidly Falling Sulfur-Dioxide Levels, and the Concept of Zone Skipping. | 
                               Hawksworth…  | 
                                                                                        1989 | 
| Unifying nutrient-chlorophyll relationships in lakes. | 
                               Prairie, Y.…  | 
                                                                                        1989 | 
| Peat acidification in Scotland | 
                               Skiba, U.;…  | 
                                                                                        1989 | 
| Indigenous and cultivated plants as bioindicators | 
                               Weinstein,…  | 
                                                                                        1989 | 
| A regression model for nitrate leaching in Northern Ireland. | 
                               Smith, R.V…  | 
                                                                                        1989 | 
| Effects of SO2, NO2, and O3 on Population Development and Morphological and Physiological Parameters of Native Herb Layer Species in a Beech Forest. | 
                               Steubing, L…  | 
                                                                                        1989 | 
| Acute toxicity of six metals to the rotifer Brachionus calyciflorus, with comparisons to other freshwater organisms | 
                               Couillard,…  | 
                                                                                        1989 | 
| A global assessment of natural sources of atmospheric trace metals | 
                               Nriagu, J.O…  | 
                                                                                        1989 | 
| Deposition of atmospheric pollutants on forests | 
                               Fowler, D…  | 
                                                                                        1989 |