| Title | Authors | Year | 
|---|---|---|
| The Effect of pH on Feeding-Behaviour in Newt Larvae (Triturus, Amphibia). | 
                               Griffiths,…  | 
                                                                                        1993 | 
| The exchange of ammonia between the atmosphere and plant communities. | 
                               Sutton, M.A…  | 
                                                                                        1993 | 
| Dissolved inorganic nitrogen budget for a forested catchment at Beddgelert, North Wales | 
                               Stevens, P.…  | 
                                                                                        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 | 
| Critical Loads - Concepts and Applications | 
                               Cresser, M.…  | 
                                                                                        1993 | 
| Critical loads for peat soils | 
                               Cresser, M.…  | 
                                                                                        1993 | 
| The Deposition of Atmospheric Ammonia and Its Effects on Plants | 
                               Pearson, J…  | 
                                                                                        1993 | 
| Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil | 
                               Houdijk, A.…  | 
                                                                                        1993 |