Title Authors Year
Bryophytes and heavy metals: a literature review

Tyler, G.…

1990
Forest soil chemical changes between 1949-50 and 1987

Billett, M.…

1990
Calculated rates of soil acidification of intensively used grassland in the Netherlands.

Oenema, O…

1990
Alger, lavar och Garrupprattning hos unggranar langs en kvavegradient Sverige-Holland

Garansson,…

1990
Surface Waters (Dangerous Substances) (Classification) Regulations No 2286

HMSO,

 		1989
Environmental Health Criteria 86 Mercury- Environmental Aspects

WHO,

 		1989
A regression model for nitrate leaching in Northern Ireland.

Smith, R.V…

1989
Acute toxicity of six metals to the rotifer Brachionus calyciflorus, with comparisons to other freshwater organisms

Couillard,…

1989
The comparative chemistries of platinum group metals and their periodic neighbors in marine macrophytes

Yang, J. S…

1989
A global assessment of natural sources of atmospheric trace metals

Nriagu, J.O…

1989