| Title | Authors | Year | 
|---|---|---|
| Critical Loads: Concepts and Applications | 
                               Harriman, R…  | 
                                                                                        1993 | 
| Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain | 
                               Woodin, S.J…  | 
                                                                                        1993 | 
| Insects and Pollution | 
                               Helivvaara…  | 
                                                                                        1993 | 
| Reproduction in two submersed macrophytes declines progressively at low pH. | 
                               Titus, J.E…  | 
                                                                                        1993 | 
| Urban Air Quality in the United Kingdom. First Report of the Quality of Urban Air Review Group | 
                               Group,…  | 
                                                                                        1993 | 
| Examining the Cr uptake of ryegrass from inorganic compounds and sewage sludge in pot experiements | 
                               Loch, J ;…  | 
                                                                                        1993 | 
| Air Pollution and Tree Health in the United Kingdom | 
                               DOE, .  | 
                                                                                        1993 | 
| Atmospheric deposition of sulphur and nitrogen in heathland ecosystems. | 
                               Bobbink, R…  | 
                                                                                        1993 | 
| The effect of external stress and disturbance factors on Calluna dominated heathland vegetation. | 
                               Berdowski,…  | 
                                                                                        1993 | 
| Salt-Marsh Processes - a Review | 
                               Vernberg, F…  | 
                                                                                        1993 |