| Title | Authors | Year | 
|---|---|---|
| Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil | Houdijk, A.… | 1993 | 
| Impacts of sulphur and nitrogen deposition on sites and species of nature conservation importance in Great Britain | Woodin, S.J… | 1993 | 
| Terrestrial SSSIs at risk from soil acidification in Wales | Sketch, C.A… | 1993 | 
| Urban Air Quality in the United Kingdom. First Report of the Quality of Urban Air Review Group | Group,… | 1993 | 
| Atmospheric Change - Effect on Plant Pests and Diseases | Bell, J.N.B… | 1993 | 
| Effect of acid rain on pine needles as food for capercaillie in winter | Spidsx, T.K… | 1993 | 
| Insects and Pollution | Helivvaara… | 1993 | 
| Air Pollution and Tree Health in the United Kingdom | DOE, . | 1993 | 
| Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland | Black, K.E… | 1993 | 
| Salt-Marsh Processes - a Review | Vernberg, F… | 1993 |