| Title | Authors | Year | 
|---|---|---|
| Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees. | 
                               Cape, J.N…  | 
                                                                                        1993 | 
| How Britain hides its acid soil | 
                               Pearce, F…  | 
                                                                                        1993 | 
| Urban Air Quality in the United Kingdom. First Report of the Quality of Urban Air Review Group | 
                               Group,…  | 
                                                                                        1993 | 
| Stratospheric Aerosol Optical Depths, 1850-1990. | 
                               Sato, M. ;…  | 
                                                                                        1993 | 
| The effect of external stress and disturbance factors on Calluna dominated heathland vegetation. | 
                               Berdowski,…  | 
                                                                                        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 | 
| Zinc Phytotoxicity | 
                               Chaney, R.…  | 
                                                                                        1993 | 
| Diet and Habitat Use of the Dotterel Charadrius-Morinellus in Scotland | 
                               Galbraith,…  | 
                                                                                        1993 | 
| Terrestrial SSSIs at risk from soil acidification in Wales | 
                               Sketch, C.A…  | 
                                                                                        1993 |