A BIOLOGICAL SCALE FOR ESTIMATION OF SULPHUR DIOXIDE POLLUTION

[1] Barkman J.J., 1958, ECOLOGY CRYPTOGAMIC

[2] BRYOPHYTES AS INDICATORS OF AIR POLLUTION IN TYNE VALLEY [J]. NEW PHYTOLOGIST, 1968, 67 (01) : 15 - &

[3] FURTHER STUDIES ON EFFECT OF SULPHUR DIOXIDE ON LICHENS AND BRYOPHYTES [J]. NEW PHYTOLOGIST, 1970, 69 (03) : 605 - &

[4] GILBERT OL, 1968, THESIS U NEWCASTLE

[5] Laundon J.R., 1967, LICHENOLOGIST, V3, P277, DOI [10.1017/S0024282967000362, DOI 10.1017/S0024282967000362]

[6] LINES R, 1967, ATMOSPHERIC POLLUTIO

[7] STRATMANN H, 1963, 1184 FORSCHB LAND NR

[8] 1966, NATIONAL SURVEY SMOK

[1] Barkman J.J., 1958, ECOLOGY CRYPTOGAMIC

[2] BRYOPHYTES AS INDICATORS OF AIR POLLUTION IN TYNE VALLEY [J]. NEW PHYTOLOGIST, 1968, 67 (01) : 15 - &

[3] FURTHER STUDIES ON EFFECT OF SULPHUR DIOXIDE ON LICHENS AND BRYOPHYTES [J]. NEW PHYTOLOGIST, 1970, 69 (03) : 605 - &

[4] GILBERT OL, 1968, THESIS U NEWCASTLE

[5] Laundon J.R., 1967, LICHENOLOGIST, V3, P277, DOI [10.1017/S0024282967000362, DOI 10.1017/S0024282967000362]

[6] LINES R, 1967, ATMOSPHERIC POLLUTIO

[7] STRATMANN H, 1963, 1184 FORSCHB LAND NR

[8] 1966, NATIONAL SURVEY SMOK