| Title | Authors | Year |
|---|---|---|
| Effect of palladium chloride on the growth of Poe pratensis |
Sarwar, M… |
1970 |
| Lichens as Pollution Monitors |
Hawksworth… |
1970 |
| Mechanisms controlling world water chemistry |
Gibbs, R.J… |
1970 |
| Some morphological and physiological effects of palladium on Kentucky bluegrass |
Benedict, W… |
1970 |
| Kiefernwaldbreitung und Schwefeldioxid-Immissionen im Ruhrgebiet |
Knabe, W.… |
1970 |
| Qualitative scale for estimating sulphur dioxoide in air pollution in England and Wales using epiphytic lichens | Hawksworth, D.… | 1970 |
| The acute toxicity of some heavy metals to different species of aqautic insects |
Warnick, S… |
1969 |
| Fluoride criteria for vegetation reflect the diversity of the plant kingdom. In a Symposium: The technical significance of air quality standards. |
McCune, D.C… |
1969 |
| Survival of fish in 164 herbicides, insecticides, fungicides, wetting agents and miscellaneous substances |
Alabaster,… |
1969 |
| Bryophytes as indicators of air pollution in the Tyne valley |
Gilbert, O.… |
1968 |