Title Authors Year
Physiological-effects of long-term exposure to low concentrations of SO2 and NH3 on poplar leaves

Hove, L.W.A…

1991
Influence of HN3 and (HN4)2 SO4 on heathland vegetation

Van der…

1991
Forestry and soil protection in the UK

Moffatt, A.…

1991
Increases in soil acidity in north west Wales between 1957 and 1990

…

1991
Comparisons of 3 Woodland Sites in NW Britain Differing in Richness of the Epiphytic Lobarion-Pulmonariae Community and Levels of Wet Acidic Deposition

Farmer, A.M…

1991
Nitrate in soil water

Westling, O…

1991
Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system.

Mansfield,…

1991
Environmental Health Criteria 125 Platinum

WHO,

 		1991
Nitrogen Uptake and Allocation by Calluna-Vulgaris (L) Hull and Deschampsia-Flexuosa (L) Trin Exposed to 15NH3

Dueck, T.A…

1991
Effects of ionising radiation on aquatic organisms

National…

1991