Abstract
This report summarizes the present knowledge concerning the impact of automobile exhausts on plants and the research carried out at IVL in this field during the period 1988-1991. The investigations carried out at motorway E6 south of Gothenburg show: * that the concentrations of ethylene are high enough to cause pronounced effects on the bio indicator petunia, * that the ozone concentrations in the vicinity of the motorway are lower than the regional background concentrations, which was reflected in significantly less visible ozone injury on the ozone bio indicator, subterranean clover, close to the motorway after an ozone episode, * that the less ozone sensitive red clover, in contrast to subterranean clover, showed stimulated growth with increasing distance from the motorway, * that there was a tendency towards higher yields for cereals in the vicinity of the motorway, but the extent of and cause for this growth stimulation is not known at present. The effects of metals from catalytic converters is as yet uncertain, as is the understanding of effects of nitrogen oxides. 45 refs, 16 figs, 7 tabs
Citation Formats
Pleijel, H, Ahlfors, A, Skaerby, L, Pihl Karlsson, G, and Sjoedin, Aa.
The effect of vehicle exhausts on crops and other utility plants close to roads; Trafikavgasers effekter paa groedor och andra nyttovaexter i naerheten av vaegar.
Sweden: N. p.,
1993.
Web.
Pleijel, H, Ahlfors, A, Skaerby, L, Pihl Karlsson, G, & Sjoedin, Aa.
The effect of vehicle exhausts on crops and other utility plants close to roads; Trafikavgasers effekter paa groedor och andra nyttovaexter i naerheten av vaegar.
Sweden.
Pleijel, H, Ahlfors, A, Skaerby, L, Pihl Karlsson, G, and Sjoedin, Aa.
1993.
"The effect of vehicle exhausts on crops and other utility plants close to roads; Trafikavgasers effekter paa groedor och andra nyttovaexter i naerheten av vaegar."
Sweden.
@misc{etde_10129995,
title = {The effect of vehicle exhausts on crops and other utility plants close to roads; Trafikavgasers effekter paa groedor och andra nyttovaexter i naerheten av vaegar}
author = {Pleijel, H, Ahlfors, A, Skaerby, L, Pihl Karlsson, G, and Sjoedin, Aa}
abstractNote = {This report summarizes the present knowledge concerning the impact of automobile exhausts on plants and the research carried out at IVL in this field during the period 1988-1991. The investigations carried out at motorway E6 south of Gothenburg show: * that the concentrations of ethylene are high enough to cause pronounced effects on the bio indicator petunia, * that the ozone concentrations in the vicinity of the motorway are lower than the regional background concentrations, which was reflected in significantly less visible ozone injury on the ozone bio indicator, subterranean clover, close to the motorway after an ozone episode, * that the less ozone sensitive red clover, in contrast to subterranean clover, showed stimulated growth with increasing distance from the motorway, * that there was a tendency towards higher yields for cereals in the vicinity of the motorway, but the extent of and cause for this growth stimulation is not known at present. The effects of metals from catalytic converters is as yet uncertain, as is the understanding of effects of nitrogen oxides. 45 refs, 16 figs, 7 tabs}
place = {Sweden}
year = {1993}
month = {Nov}
}
title = {The effect of vehicle exhausts on crops and other utility plants close to roads; Trafikavgasers effekter paa groedor och andra nyttovaexter i naerheten av vaegar}
author = {Pleijel, H, Ahlfors, A, Skaerby, L, Pihl Karlsson, G, and Sjoedin, Aa}
abstractNote = {This report summarizes the present knowledge concerning the impact of automobile exhausts on plants and the research carried out at IVL in this field during the period 1988-1991. The investigations carried out at motorway E6 south of Gothenburg show: * that the concentrations of ethylene are high enough to cause pronounced effects on the bio indicator petunia, * that the ozone concentrations in the vicinity of the motorway are lower than the regional background concentrations, which was reflected in significantly less visible ozone injury on the ozone bio indicator, subterranean clover, close to the motorway after an ozone episode, * that the less ozone sensitive red clover, in contrast to subterranean clover, showed stimulated growth with increasing distance from the motorway, * that there was a tendency towards higher yields for cereals in the vicinity of the motorway, but the extent of and cause for this growth stimulation is not known at present. The effects of metals from catalytic converters is as yet uncertain, as is the understanding of effects of nitrogen oxides. 45 refs, 16 figs, 7 tabs}
place = {Sweden}
year = {1993}
month = {Nov}
}