| Title: | "Organic persistent toxic substances in soils, waters and sediments along an altitudinal gradient at Mt. Sagarmatha, Himalayas, Nepal" |
| Author(s): | Guzzella L; Poma G; De Paolis A; Roscioli C; Viviano G; |
| Address: | "IRSA-CNR, via del Mulino 19, 20047 Brugherio, MB, Italy. guzzella@irsa.cnr.it" |
| DOI: | 10.1016/j.envpol.2011.06.015 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "Persistent Organic Pollutants (POPs) and Polycyclic Aromatic Hydrocarbons (PAHs) are important classes of compounds of serious environmental concern. These compounds were measured in waters, sediments and soils from several high altitude sites in the Sagarmatha National Park (Nepal) and included in the Himalayan ridge. In water samples, low-level substituted PCBs and PBDEs, along with more volatile PAHs, were the most common contaminants. In sediment and soil samples, the PCB profile was mainly composed of medium-level chlorinated congeners and significantly correlated with altitude. The PAH profile for water and soil samples showed the main contribution of pyrogenic PAHs due to emissions of solid combustion, whereas the profile for sediments indicated the main contribution of pyrogenic PAHs from gasoline emissions. The PAH levels measured in Himalayan samples must be considered as low to medium contaminated, whereas the regarded Himalayan stations can be considered undisturbed remote areas concerning PCB, PBDE and OC compounds" |
| Keywords: | Altitude Environmental Monitoring Environmental Pollutants/*analysis/toxicity Environmental Pollution/statistics & numerical data Fresh Water/*chemistry Geologic Sediments/*chemistry Halogenated Diphenyl Ethers/analysis Hazardous Substances/*analysis/toxi; |
| Notes: | "MedlineGuzzella, Licia Poma, Giulia De Paolis, Adolfo Roscioli, Claudio Viviano, Gaetano eng England 2011/07/15 Environ Pollut. 2011 Oct; 159(10):2552-64. doi: 10.1016/j.envpol.2011.06.015. Epub 2011 Jul 14" |
