| Title | Authors | Year | 
|---|---|---|
| The comparative chemistries of platinum group metals and their periodic neighbors in marine macrophytes | 
                               Yang, J. S…  | 
                                                                                        1989 | 
| A global assessment of natural sources of atmospheric trace metals | 
                               Nriagu, J.O…  | 
                                                                                        1989 | 
| Statutory Instrument (1989): The Sludge (Use in Agriculture) Regulations | 
                               HMSO,  | 
                                                                                        1989 | 
| Simulation of the long-term soil response to acid deposition in various buffer ranges | 
                               Vries, W.;…  | 
                                                                                        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 | 
| The acidification of Scottish lochs | 
                               Battarbee,…  | 
                                                                                        1989 | 
| Indigenous and cultivated plants as bioindicators | 
                               Weinstein,…  | 
                                                                                        1989 | 
| Effects of N-emissions on nutrient status and vitality of Pinus sylvestris near a hen house. | 
                               …  | 
                                                                                        1989 | 
| Deposition of atmospheric pollutants on forests | 
                               Fowler, D…  | 
                                                                                        1989 |