PCDD/F and PCB in spruce forests of the Alps.
Environ Pollut
; 157(12): 3280-9, 2009 Dec.
Article
en En
| MEDLINE
| ID: mdl-19570598
PCDD/F and PCB concentrations in remote mountainous spruce stands of the Central European Alps show strong geographic variation. Independent of the matrix (0.5 year old needles, humus or mineral soil), the highest pollutant levels were always found at the lateral zones of the mountain range. High levels coincided with strong precipitation, particularly along the northern margin of the study region. The most volatile PCB congener propagated farther into the colder, drier central Alps than the heavier species. Matrices with different accumulation history (needles and humus) repeatedly reflected different spatial emission patterns. Consistent with its much longer exposure, pollutant levels in humus exceeded those of needles by up to two orders of magnitude. Needle contamination varied with altitude but the vertical trends were highly variable between transsects and changed between years, too.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Polímeros
/
Árboles
/
Benzofuranos
/
Bifenilos Policlorados
/
Picea
/
Contaminantes Ambientales
/
Dibenzodioxinas Policloradas
País/Región como asunto:
Europa
Idioma:
En
Revista:
Environ Pollut
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2009
Tipo del documento:
Article
País de afiliación:
Austria
Pais de publicación:
Reino Unido