| Title | Authors | Year |
|---|---|---|
| Sensitive bioassays for risk assessment of contaminated soils |
Vaughan, G… |
1998 |
| Ammonia: emission, atmospheric transport and deposition |
Asman, W.A.… |
1998 |
| Nitrogen deposition and ectomycorhizas |
Wallenda, T… |
1998 |
| Workshop on critical limits and effects based approaches for heavy metals and persistent organic pollutants |
Pollution,… |
1998 |
| Differential effects of ammonium nitrate on three heathland species |
De Graaf, M… |
1998 |
| Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: The pitfalls of biological monitoring |
Dobben, H.F… |
1998 |
| Time-space analyses of the British lichen flora, with particular reference to air quality surveys |
Seaward, M.… |
1998 |
| Assessment of Cd, Pb and Zn contamination in roadside soils and grasses from Gipuzkoa (Spain) |
Garcia, R… |
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 |