Naslov
Biomonitoring of mercury and other elements using lichens

Autori
Horvat, Milena ; Jeran, Zvonka ; Jaćimović, Radojko ; Prosenc, Ana ; Špirić, Zdravko ; Miklavčić, Vesna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
V: Book of abstracts : 5-th International Conference Mercury as a global Pollutant / Barbosa, J., Melamed, R., and Villas Bôas, R. (eds.) - Rio de Janeiro : CETEM - Center for Mineral Technology, 1999

Skup
: 5-th International Conference Mercury as a global Pollutant

Mjesto i datum
Rio de Janeiro, Brazil, 23.05.1999. - 28.05.1999

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
lichen; mercury; biomonitoring

Sažetak
In the present study two areas were studied: (a) INA Naftaplin Gas Treatment Plant, Molve, Croatia, where the efficiency of industrial facility for removal of Hg from natural gas was investigated, and (b) Mercury mining area, Idrija, Slovenia. In-situ lichen samples (such as Parmelia sulcata, Xanthoria parietina, and Hypogymnia) were collected at various locations of the studied areas for the determination of Hg and other 37 elements. The values for total Hg were correlated with Hg measurements in air, while for other elements values were compared with average concentrations found in contaminated and non-contaminated areas in Europe. In addition, the lichen Hypogymnia physodes from a pristine area (Hg conc. 0.11 ppm) was transplanted to the same locations for a period 5 and 7 months during 1997. Concentrations of Hg in in-situ lichens at INA-Naftaplin, Molve, were relatively low at Gas Treatment Plant, Molve, rarely exceeding 0.55 ppm, except at one location where the values up to 2.8 ppm were found. Concentrations of Hg in air outside the Gas Treatment Plant (CPS) station do not exceed 6 ng/m3, which is typical for non-contaminated areas, while slightly higher values were observed at the CPS station, with an average concentration of about 10 ng/m3, rarely exceeding 50 ng/m3. In Idrija, values for total Hg in lichens were much higher (up to 50 ppm) which correlate well with much higher Hg concentrations in air (from 10 to 300 ng/m3).

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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