| Title | Authors | Year | 
|---|---|---|
| Terrestrial SSSIs at risk from soil acidification in Wales | 
                               Sketch, C.A…  | 
                                                                                        1993 | 
| The exchange of ammonia between the atmosphere and plant communities. | 
                               Sutton, M.A…  | 
                                                                                        1993 | 
| The Effect of pH on Feeding-Behaviour in Newt Larvae (Triturus, Amphibia). | 
                               Griffiths,…  | 
                                                                                        1993 | 
| Insects and Pollution | 
                               Helivvaara…  | 
                                                                                        1993 | 
| Reproduction in two submersed macrophytes declines progressively at low pH. | 
                               Titus, J.E…  | 
                                                                                        1993 | 
| The effects of dust on vegetation - a review | 
                               Farmer, A.M…  | 
                                                                                        1993 | 
| Estimating the relative contribution of SOx, NOx and NHx inputs to effects of atmospheric deposition | 
                               Sutton, M.A…  | 
                                                                                        1993 | 
| Air Pollution and Tree Health in the United Kingdom | 
                               DOE, .  | 
                                                                                        1993 | 
| North Sea quality status report 1993 | 
                               OSPARCOM,…  | 
                                                                                        1993 | 
| Effects of acidic gases and mists on the reproductive capability of 3 fern species | 
                               Lawrence, P…  | 
                                                                                        1993 |