Title Authors Year
Effect of acid rain on pine needles as food for capercaillie in winter

Spidsx, T.K…

1993
North Sea quality status report 1993

OSPARCOM,…

1993
Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation

Faafeng, B…

1993
Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees.

Cape, J.N…

1993
Urban Air Quality in the United Kingdom. First Report of the Quality of Urban Air Review Group

Group,…

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
Observations on the changes in nitrate concentrations in seven upland moorland catchments in north eastern Scotland

Black, K.E…

1993
The Deposition of Atmospheric Ammonia and Its Effects on Plants

Pearson, J…

1993