| POZO, Karla Andrea, G. PERRA, V. GOMEZ, R. BARRA a R. URRUTIA. TEMPORAL TRENDS OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) IN A DATED SEDIMENT CORE OF A HIGH ATITUDE MOUNTAIN LAKE: CHUNGARA LAKE-NORTHERN CHILE (18 degrees S). JOURNAL OF THE CHILEAN CHEMICAL SOCIETY. CONCEPCION: SOC CHILENA QUIMICA, 2014, roč. 59, č. 3, s. 2564-2567. ISSN 0717-9707. |
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@article{1299714,
author = {Pozo, Karla Andrea and Perra, G. and Gomez, V. and Barra, R. and Urrutia, R.},
article_location = {CONCEPCION},
article_number = {3},
keywords = {HIGH-ALTITUDE LAKE; POLYCHLORINATED-BIPHENYLS; FLUXES; PCBS},
language = {eng},
issn = {0717-9707},
journal = {JOURNAL OF THE CHILEAN CHEMICAL SOCIETY},
title = {TEMPORAL TRENDS OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) IN A DATED SEDIMENT CORE OF A HIGH ATITUDE MOUNTAIN LAKE: CHUNGARA LAKE-NORTHERN CHILE (18 degrees S)},
volume = {59},
year = {2014}
}
TY - JOUR
ID - 1299714
AU - Pozo, Karla Andrea - Perra, G. - Gomez, V. - Barra, R. - Urrutia, R.
PY - 2014
TI - TEMPORAL TRENDS OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) IN A DATED SEDIMENT CORE OF A HIGH ATITUDE MOUNTAIN LAKE: CHUNGARA LAKE-NORTHERN CHILE (18 degrees S)
JF - JOURNAL OF THE CHILEAN CHEMICAL SOCIETY
VL - 59
IS - 3
SP - 2564-2567
EP - 2564-2567
PB - SOC CHILENA QUIMICA
SN - 07179707
KW - HIGH-ALTITUDE LAKE
KW - POLYCHLORINATED-BIPHENYLS
KW - FLUXES
KW - PCBS
N2 - In this study levels, fluxes and temporal trend of PAHs are reported in a sediment core from Chungara Lake (18 degrees S) in Northern Chile. The sediments were obtained by Kayac corer and freeze dried. PAHs were extracted in SOXHLET system and measured by HPLC with diode array detector and fluorescence detection. Sedimentary record chronology was determined using Pb-210 isotopes and organic carbon (%) was also measured in sediments. Concentrations (ng g(-1) d.w.) of PAHs were low ranging from similar to 1 to 50. PAHs fingerprint was dominated by 3-ring (21%) and 4-ring. Organic carbon (%) ranged from similar to 17 to 24 (21 +/- 3) and no statistical significant correlation (p<0.05) was detected between OC (%) and PAHs along the sediment core. PAHs fluxes (mu g m(-2)yr(-1)) fluctuated from similar to 0.3 (cm 1) to 35 (cm 5) in 1978. LPAHs/HPAHs ratios (0.04 to 3) indicate petrogenic and pyrolytic origin of PAHs. This results contributes with new information of PAHs deposition at high altitudinal lake in Southern Hemisphere.
ER -
POZO, Karla Andrea, G. PERRA, V. GOMEZ, R. BARRA a R. URRUTIA. TEMPORAL TRENDS OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) IN A DATED SEDIMENT CORE OF A HIGH ATITUDE MOUNTAIN LAKE: CHUNGARA LAKE-NORTHERN CHILE (18 degrees S). \textit{JOURNAL OF THE CHILEAN CHEMICAL SOCIETY}. CONCEPCION: SOC CHILENA QUIMICA, 2014, roč.~59, č.~3, s.~2564-2567. ISSN~0717-9707.
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