Main Title |
Effects of Nitrogen Oxides on Vegetation. |
Author |
Tingey, D. T. ;
|
CORP Author |
Corvallis Environmental Research Lab., OR. |
Year Published |
1985 |
Report Number |
EPA/600/D-85/265; |
Stock Number |
PB86-119542 |
Additional Subjects |
Nitrogen oxides ;
Tolerances(Physiology) ;
Vegetation ;
Plant physiology ;
Concentration(Composition) ;
Inorganic nitrates ;
Nitrites ;
Absorption ;
Photosynthesis ;
Lichens ;
Chlorophylls ;
Pine trees ;
Grasses ;
Populus nigra ;
Betula pendula
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-119542 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
35p |
Abstract |
The data support the conclusion that lower plants are relatively tolerant of NO2, as are higher plants. Gas-phase concentrations required to cause effects are much higher than occur in the ambient. However, caution must be exercised concerning the possible effects of nitrate and nitrite delivered to the plants via wet deposition processes as thallophytes can absorb the ions directly from the environment. Nitrite (0.5 to 1.0mM) can reduce the chlorophyll content of lichens and the photosynthetic rate of algae. Additional studies are required to determine if the wet deposition rates that occur in ambient conditions are detrimental to lower plants. |
PUB Date Free Form |
Oct 85 |
Category Codes |
13B; 6C; 6T; 68A; 57C; 57Y |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
601717955 |
Origin |
NTIS |
Type |
CAT |