Title Authors Year
The nutritional status of Picea abies (L.) Karst. across Europe, and implications for "forest decline".

Cape, J.N…

1990
Lichen Physiology and Air-Pollution .2. Statistical-Analysis of the Correlation between SO2, NO2, NO and O3, and Chlorophyll Content, Net Photosynthesis, Sulfate Uptake and Protein- Synthesis of Parmelia-Sulcata Taylor

Von Arb, C…

1990
The difficulties of abating smoke in Late Victorian York

Bowler, C…

1990
Large Lakes: ecological structure and function

Kilham, S.S…

1990
Water and the Environment. Circular 7/89

Department…

1989
Effects of N-emissions on nutrient status and vitality of Pinus sylvestris near a hen house.

…

1989
Environmental Health Criteria 85 Lead- Environmental Aspects

WHO,

 		1989
Unifying nutrient-chlorophyll relationships in lakes.

Prairie, Y.…

1989
Surface Waters (Dangerous Substances) (Classification) Regulations No 2286

HMSO,

 		1989
Environmental Health Criteria 86 Mercury- Environmental Aspects

WHO,

 		1989