| Title | Authors | Year | 
|---|---|---|
| Long-term change in the suitability of welsh streams for dippers Cinclus cinclus as a result of acidification and recovery: A modelling study. | 
                               Ormerod, S.…  | 
                                                                                        1989 | 
| Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test | 
                               Kühn, R ;…  | 
                                                                                        1989 | 
| A global assessment of natural sources of atmospheric trace metals | 
                               Nriagu, J.O…  | 
                                                                                        1989 | 
| Lichen Recolonization in London under Conditions of Rapidly Falling Sulfur-Dioxide Levels, and the Concept of Zone Skipping. | 
                               Hawksworth…  | 
                                                                                        1989 | 
| Peat acidification in Scotland | 
                               Skiba, U.;…  | 
                                                                                        1989 | 
| Determination of plant-available soil manganese | 
                               Reisenauer…  | 
                                                                                        1988 | 
| Quantitative Assessment of Worldwide Contamination of Air, Water, and Soils by Trace Metals | 
                               Nriagu, J.O…  | 
                                                                                        1988 | 
| Understanding the Pollution Sensitivity of Lichens | 
                               Richardson…  | 
                                                                                        1988 | 
| Lake Acidification in the United Kingdom 1800-1986 | 
                               Battarbee,…  | 
                                                                                        1988 | 
| Environmental Health Criteria 81 Vanadium | 
                               WHO,  | 
                                                                                        1988 |