AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Authors: ANDREEA ROTARU, EDINA REIZER, VLAD PĂNESCU, SORIN POP, MIHAIL SIMION BELDEAN-GALEA.
DOI: https://doi.org/10.24193/subbchem.2017.3.17
Published Online: 2017-09-30
Published Print: 2017-09-30
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Polycyclic aromatic hydrocarbons (PAHs) make part of the persistent organic pollutants (POPs) class. The most harmful PAHs are generated during the incomplete combustion of organic material. European legislation has recommended the use of bioindicators to estimate the impact of PAHs on the ecosystem. The aim of this work was to investigate the occurrence of atmospheric PAHs in 14 urban areas in Romania, using moss as bioindicator. The pollution emission sources, applying diagnostic ratios, were also evaluated. The PAHs were analyzed by gas chromatography-mass spectrometry (GS-MS). This study showed the presence of PAHs in moss samples in concentrations which are dependent on the sampling zone, ranging from 2.7 to 394 ng g-¹. The cities with the highest amounts of total PAHs were found within the Carpathian arch, while the cities situated in the western part of the country had the lowest amounts. The FLA/(FLA PYR) and FL/(FL PYR) ratios indicate both the diesel emission source, fossil fuels combustion source and wood or coal combustion source which may come either from traffic, industrial activities, centralized heating systems, or from other type of industry.
Keywords: Polycyclic aromatic hydrocarbons, urban atmosphere, bioindicators, moss, GC-MS
