| Title | Authors | Year | 
|---|---|---|
| Stratospheric Aerosol Optical Depths, 1850-1990. | 
                               Sato, M. ;…  | 
                                                                                        1993 | 
| Examining the Cr uptake of ryegrass from inorganic compounds and sewage sludge in pot experiements | 
                               Loch, J ;…  | 
                                                                                        1993 | 
| The Environmental Implications of UK Sulphur Emission Policy Options for England and Wales | 
                               Farmer, A.M…  | 
                                                                                        1993 | 
| Effects of acidic gases and mists on the reproductive capability of 3 fern species | 
                               Lawrence, P…  | 
                                                                                        1993 | 
| Terrestrial SSSIs at risk from acidification in Scotland | 
                               Ross, A.…  | 
                                                                                        1993 | 
| Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland | 
                               Black, K.E…  | 
                                                                                        1993 | 
| Terrestrial SSSIs at risk from soil acidification in Wales | 
                               Sketch, C.A…  | 
                                                                                        1993 | 
| 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 | 
| Atmospheric Change - Effect on Plant Pests and Diseases | 
                               Bell, J.N.B…  | 
                                                                                        1993 |