Abstract
Plants are, without doubt, the best indicators of a large number of different types of air pollution, but only as far as gaseous impurities are concerned. Plants will record damaging concentrations of air pollutants any time they are growing. Only a minimum of apparatus is needed to grow plants. Each toxic gas has its own specific symptoms, and different plants have different sensitivities to the toxic gases. Correlations between concentration of air pollutants and the amount of leaf damage are excellent.
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Claims 5
Claim · model-written summary
Plants indicate many gaseous air pollutants.
- Taxon
- PlantsViridiplantaee0
- Outcome
- indicators of a large number of different types of air pollutione0
- Qualifier
- only as far as gaseous impurities are concernede0
Verbatim
e0“Plants are, without doubt, the best indicators of a large number of different types of air pollution, but only as far as gaseous impurities are concerned.”
Claim · model-written summary
Growing plants record damaging air pollutant concentrations.
- Taxon
- PlantsViridiplantaee0
- Organ / stage
- growinge0
- Outcome
- damaging concentrations of air pollutantse0
Verbatim
e0“Plants will record damaging concentrations of air pollutants any time they are growing.”
Claim · model-written summary
Different plants have different sensitivities to toxic gases.
- Taxon
- plantsViridiplantaee0
- Outcome
- sensitivities to the toxic gasese0
Verbatim
e0“different plants have different sensitivities to the toxic gases.”
Claim · model-written summary
Each toxic gas causes its own specific plant symptoms.
Not reportedTaxon
Verbatim
e0“Each toxic gas has its own specific symptoms”
Claim · model-written summary
Air pollutant concentration correlates strongly with leaf damage.
Not reportedTaxon
Verbatim
e0“Correlations between concentration of air pollutants and the amount of leaf damage are excellent.”