Study of metal distribution in pine and spruce needles
Conference
·
OSTI ID:225215
- Charles Univ., Prague (Czech Republic). Inst. of Environmental Studies
- Univ. of London (United Kingdom). Birkbeck College
- Administration of Protected Landscape Area Elbe Sandstone, Decin (Czech Republic)
This study was performed to assess the conditions for foliar uptake of air-borne metallic pollutants on pine and spruce needles. Needles of coniferous trees (Picea abies, Pinus sylvestris, Pinus strobus) were sampled at three locations in the Protected Landscape Area Elbe Sandstone in the Czech Republic. Solid (CR) and water-soluble (WS) fractions of aerosol adhered to the needle surface, and epicuticular waxes were separated from the needle by the two-step stripping procedure. The WS and CR fractions and the needle body after the stripping procedure were separately analyzed for 24 metals. The quantity of each fraction and its elemental composition is discussed regarding the tree species, needle age and locality. Highest aerosol quantities as well as concentration of metals were found in pine needles (Pinus strobus) from the locality most exposed to the local pollution sources. Epicuticular waxes were analyzed for As, Cd and Pb. The concentrations range from 0.1 to 1.2 {micro}g/g for As and Pb, and from 0.2 to 0.6 {micro}g/g for Cd. The highest metal concentrations were found in waxes of pines (Pinus sylvestris). Values of As and Pb concentration differences between WS fraction and the wax, between the wax and the needle body decrease with the needle age while Cd concentration differences do not depend on the needle age.
- OSTI ID:
- 225215
- Report Number(s):
- CONF-9511137--; ISBN 1-880611-03-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Damage to stomata and inhibition of photosynthesis by toxic pollutants in Pinus sylvestris needles as affected by the exposure time
Pine needles as monitors of atmospheric organic pollutants
Air pollution and the chlorotic dwarf disease of eastern white pine
Journal Article
·
Tue Oct 31 23:00:00 EST 1995
· Russian Journal of Plant Physiology
·
OSTI ID:183608
Pine needles as monitors of atmospheric organic pollutants
Conference
·
Fri Dec 30 23:00:00 EST 1994
·
OSTI ID:49605
Air pollution and the chlorotic dwarf disease of eastern white pine
Journal Article
·
Wed Dec 31 23:00:00 EST 1969
· For. Sci.; (United States)
·
OSTI ID:6863508