INVESTIGADORES
CARRERAS Hebe Alejandra
artículos
Título:
Distribution of atmospheric trace elements and air quality in Argentina employing the lichen Ramalina celastri as passive biomonitor. Detection of air pollutants emission sources.
Autor/es:
PIGNATA, M.L; PLÁ, R.; MARTINEZ, S.; JASAN, R.; RODRIGUEZ, J.; WANNAZ, EDUARDO; GUDIÑO, G.; CARRERAS, H.A.; GONZALEZ, C.M.
Revista:
International Journal of Environment and Health
Editorial:
Inderscience
Referencias:
Lugar: United Kingdom; Año: 2007 vol. 1 p. 29 - 46
ISSN:
1743-4955
Resumen:
Ramalina celastri was used as a passive biomonitor to study the
relationship between elemental accumulation, emission sources and
physiochemical parameters used as air pollution biomarkers in Argentina. The
concentration of 27 elements was determined in the thalli by Neutron
Activation Analysis (NAA). The content of photosynthetic pigments,
peroxidation products, water and sulphur was determined and a Pollution Index
(PI) was calculated. Factor analysis was used to locate the possible emission
sources of elements. Overall, the elemental concentrations were similar to other
biomonitoring studies. The higher levels of arsenic were related to the soil
particulate matter, which is characteristically rich in this element. High uranium
concentrations were found near a uranium mine and elevated levels of zinc
were found in areas congested with heavy traffic. Although there is no direct
relationship found between the physiological parameters and the elemental
concentrations, the geographical distribution of the PI allowed to detect areas
with increased lichen damage.
relationship between elemental accumulation, emission sources and
physiochemical parameters used as air pollution biomarkers in Argentina. The
concentration of 27 elements was determined in the thalli by Neutron
Activation Analysis (NAA). The content of photosynthetic pigments,
peroxidation products, water and sulphur was determined and a Pollution Index
(PI) was calculated. Factor analysis was used to locate the possible emission
sources of elements. Overall, the elemental concentrations were similar to other
biomonitoring studies. The higher levels of arsenic were related to the soil
particulate matter, which is characteristically rich in this element. High uranium
concentrations were found near a uranium mine and elevated levels of zinc
were found in areas congested with heavy traffic. Although there is no direct
relationship found between the physiological parameters and the elemental
concentrations, the geographical distribution of the PI allowed to detect areas
with increased lichen damage.
was used as a passive biomonitor to study the
relationship between elemental accumulation, emission sources and
physiochemical parameters used as air pollution biomarkers in Argentina. The
concentration of 27 elements was determined in the thalli by Neutron
Activation Analysis (NAA). The content of photosynthetic pigments,
peroxidation products, water and sulphur was determined and a Pollution Index
(PI) was calculated. Factor analysis was used to locate the possible emission
sources of elements. Overall, the elemental concentrations were similar to other
biomonitoring studies. The higher levels of arsenic were related to the soil
particulate matter, which is characteristically rich in this element. High uranium
concentrations were found near a uranium mine and elevated levels of zinc
were found in areas congested with heavy traffic. Although there is no direct
relationship found between the physiological parameters and the elemental
concentrations, the geographical distribution of the PI allowed to detect areas
with increased lichen damage.