| Title | Authors | Year | 
|---|---|---|
| Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation | Faafeng, B… | 1993 | 
| Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain | Woodin, S.J… | 1993 | 
| SSSIs in England at risk from acid rain | Bissett, K… | 1993 | 
| Estimating the relative contribution of SOx, NOx and NHx inputs to effects of atmospheric deposition | Sutton, M.A… | 1993 | 
| Insects and Pollution | Helivvaara… | 1993 | 
| Review of the impact of current and future acid deposition in Wales | Reynolds, B… | 1993 | 
| Dissolved inorganic nitrogen budget for a forested catchment at Beddgelert, North Wales | Stevens, P.… | 1993 | 
| Critical Loads - Concepts and Applications | Cresser, M.… | 1993 | 
| The Environmental Implications of UK Sulphur Emission Policy Options for England and Wales | Farmer, A.M… | 1993 | 
| Air Pollution and Tree Health in the United Kingdom | DOE, . | 1993 |