Title Authors Year
Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: the pitfalls of biological monitoring.

Van Dobben…

1998
Relationships between atmospheric nitrogen inputs and the vertical nitrogen and phosphorus concentration gradients in the lichen Cladonia portentosa

Hyvdrinen,…

1998
Ammonia concentrations at a site in southern Scotland from 2 yr of continuous measurements

Burkhardt,…

1998
Nitrogen and drought effects on ectomycorrhizae of Norway spruce [Picea abries L. (Karst.)].

Nilsen, P…

1998
Early effects of acid mist on Sitka spruce planted on acid peat.

Sheppard, L…

1998
National Recommended Water Quality Criteria

EPA, US

 		1998
Some effects of acid rain on the mobilisation of elements from bird eggs.

Pyatt, F.B…

1998
UNECE Critical Levels Workshop Proceedings

Guderian, R…

1998
Modelling the spatial distribution of ammonia emissions in the UK

Dragosits,…

1998
The effect of air pollution from nitrogen dioxide (NO2) on epiphytic lichens in Seville, Spain.

Funetes, J.…

1998