Title Authors Year
National Recommended Water Quality Criteria

EPA, US

 		1998
The relationship between nitrogen deposition, species composition and foliar nitrogen concentrations in woodland flora in the vicinity of livestock farms.

Pitcairn, C…

1998
Ecological effects of atmospheric reactive N deposition on semi-natural terrestrial ecosystems.

Lee, J.A.;…

1998
Modelling the spatial distribution of ammonia emissions in the UK

Dragosits,…

1998
The nitrogen content of upland rivers in Britain: the significance of organic N

Chapman, P.…

1998
Sensitive bioassays for risk assessment of contaminated soils

Vaughan, G…

1998
River Quality in Northern Ireland 1995

Service,…

1998
Sulphur isotopic investigation of a polluted raised bog and the uptake of pollutant sulphur by Sphagnum

Thompson, A…

1998
Effects of grass-encroachment on vegetation and soil in Dutch dry dune grasslands

Veer, M.A.C…

1998
Environmental effects of ozone depletion: 1998 assessment

UNEP,

 		1998