| Title | Authors | Year |
|---|---|---|
| Effects of atmospheric NH3 on epiphytic lichens in the Netherlands: the pitfalls of biological monitoring. |
Van Dobben… |
1998 |
| Peroxyacetyl nitrates (PAN) and other minor pollutants |
Temple, P.J… |
1998 |
| Soil nitrous oxide and nitric oxide emissions as indicators of the exceedance of critical loads of atmospheric nitrogen deposition in semi-natural ecosystems |
Skiba, U.;… |
1998 |
| Early effects of acid mist on Sitka spruce planted on acid peat. |
Sheppard, L… |
1998 |
| UNECE Critical Levels Workshop Proceedings |
Guderian, R… |
1998 |
| Nitrogen deposition and ectomycorhizas |
Wallenda, T… |
1998 |
| Impacts and fate of experimentally enhanced nitrogen deposition on a British lowland heath. |
Power, S.;… |
1998 |
| Time-space analyses of the British lichen flora, with particular reference to air quality surveys |
Seaward, M.… |
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 |