| Title | Authors | Year | 
|---|---|---|
| Toxicity of heavy metals to brine shrimp Artemia. | 
                               Gajbhiye, S…  | 
                                                                                        1990 | 
| Air pollution and agricultural aphid pests. I: Fumigation experiments with SO2 and NO2. | 
                               Houlden, G…  | 
                                                                                        1990 | 
| Sediment chemistry and atmospheric contamination | 
                               Rippey, B…  | 
                                                                                        1990 | 
| Effects of nitrogen dioxide pollution on the growth of 3 fern species. | 
                               Ashenden, T…  | 
                                                                                        1990 | 
| The nutritional status of Picea abies (L.) Karst. across Europe, and implications for "forest decline". | 
                               Cape, J.N…  | 
                                                                                        1990 | 
| Large Lakes: ecological structure and function | 
                               Kilham, S.S…  | 
                                                                                        1990 | 
| The difficulties of abating smoke in Late Victorian York | 
                               Bowler, C…  | 
                                                                                        1990 | 
| Cation-exchange properties and adaptation to soil acidity in bryophytes | 
                               Buscher, P…  | 
                                                                                        1990 | 
| Epiphyte recolonization of oaks along a gradient of air pollution in south-east England, 1979-1990. | 
                               Bates, J.W…  | 
                                                                                        1990 | 
| Alger, lavar och Garrupprattning hos unggranar langs en kvavegradient Sverige-Holland | 
                               Garansson,…  | 
                                                                                        1990 |