| Title | Authors | Year |
|---|---|---|
| Environmental effects of manganese and proposed freshwater guidelines to protect aquatic life in British Columbia |
Reimer, P.… |
1999 |
| Ranking of epiphytic lichen sensitivity to air pollution using survey data: A comparison of indicator scales |
Van Dobben… |
1999 |
| Chemistry of Atmospheres |
Wayne, R.P… |
1999 |
| Mapping of ammonia pollution with epiphytic lichens in the Netherlands |
Van Herk, C… |
1999 |
| Undergrowth as a biomonitor for deposition of N and acidity in pine forest. |
Van Dobben… |
1999 |
| Distribution in Portugal of some pollutants in the lichen Parmelia sulcata |
Freitas, M… |
1999 |
| The effect of increased deposition of atmospheric N on Cv in upland Britain. |
Carroll, J.… |
1999 |
| Methane release from peat soils: effects of Sphagnum and Juncus. |
Roura-Carol… |
1999 |
| Protocol to abate acidification, eutrophication and ground-level ozone. |
UNECE, .… |
1999 |
| Inventory of information sources on chemicals Persistent Organic Pollutants |
UNEP, |
1999 |