Heavy metal pollutant in urban street dust has become a growing concern in recent years. Street dust samples from urban and suburban areas were collected from the Sarajevo area, Bosnia and Herzegovina, during the spring season of 2013. Samples were collected from low and high density traffic roads, industrial zones, parks, parking places, hospitals and local health centres, school gardens. The levels of heavy metals of street dusts were determined by flame atomic absorption spectrometry (FAAS). Cadmium, chromium, copper, nickel, iron, manganese, lead and zinc levels in the dust samples were found in the range of 0.58–3.65, 3.42–60.82, 5.49– 388, 9.31–161, 647–2244, 6.10–13.32, 31.63-1760 and 40.29–378 μg/g, respectively. The highest metal concentrations were found in samples from industrial zone and in the streets with heavy traffic. The lowest levels of the metal concentrations were found in the samples from health centres and school gardens. The concentrations of the metals were, in most of cases, similar to the mean world-wide contents of the street dust samples. Correlations between heavy trace metal levels of the dust samples were also evaluated.

Aims: This study explores the total quantity of sulfur secondary metabolites in the plant organs of garlic and ramsons, the content of total phenol and their correlation to the antioxidant capacity (AOC). There are different reports about correlation of secondary

Eight samples of iron slag and two metallic artefacts from two Early Iron Age sites in central Bosnia and Herzegovina, ��olaci and Pod, were analysed using chemical instrumental methods. Atomic absorption spectrometry was applied to determine major (Fe, Al,Ca, Na, Mg, K and Mn) and trace elements (Cr, Cu, Co, Ni and Zn), while gravimetric method and molecular visible spectrometry were applied to determine Si and Ti, respectively. Infrared spectrum of selected samples was recorded during different phases ofanalysis and the results show that the primary ore was hematite. Results also indicate that residents from both sites, which are adjacent, used the same ore source. Low values of Ca, whose compounds are used as flux in later stages of the processing of iron ore, show that the processing of iron at the study sites was in the beginning stage of its development.Based on the obtained results, metallic artefacts found at the site ��olaci probably came from site Pod. Graphical presentation of the content relation ship between the selected metal oxides in the slag was preformed to present differences between samples from two sites. Analysis of trace elements in the analysed slags confirmed that they originate from Early Iron Age.

UDK 582.28:547.56          630*81:582.28 Disposal and incineration or recycling of old and waste wood represents an environmental problem. In most cases, agents on the basis of chlorinated phenols were used for wood preservation. These substances penetrate deeper into the wood and because of their chemical stability it remain for decades. This is an environmental problem since chlorinated phenols are among the most acute and chronic toxic contaminants. One of the promising methods to resolve this problem is biodegradation of chlorinated phenols by microorganisms and by fungi, lately. The toxicity of chlorinated phenols against ligninolytic fungi Hypoxylon fragiforme (Hf) and Coniophora puteana (Cp) has been investigated in this paper. Results showed that the maximum concentration of chlorinated phenols, that allows the growth of Hp and Cp fungi, is 2.5 mmol/L. Testing the impact of eight chlorinated phenols on the growth of fungi, it was determined that chlorinated phenols show less antifungal activity to Hp fungus. Antifungal activity to both fungi increases with the number of substituted chlorine atoms. Also, an important role in antifungal activity, have a physico-chemical properties of chlorinated phenols, primarily LogKow, pKa and the Henry constant. Position of chlorine atoms in the molecule also has a certain influence.

Environmental contamination by polycyclic aromatic hydrocarbons (PAHs) has caused increasing concern because of their known, or suspected, carcinogenic and mutagenic effects. Polycyclic aromatic hydrocarbons occurring in the environment are usually the result of the incomplete combustion of carbon containing materials. The main sources of severe PAHs contamination in soil come from fossil fuels, i.e. production or use of fossil fuels or their products, such as coal tar and creosote. Creosote is used as a wood preservation for railway ties, bridge timbers, pilling and large-sized lumber. It consists mainly of PAHs, phenol and cresol compounds that cause harmful health effects. Research on biodegradation has shown that a special group of microorganisms, the white-rot fungi and brown-rot fungi, has a remarkable potential to degrade PAHs. This paper presents a study of the antifungal activity of 12 selected PAHs against two ligninolytic fungi Hypoxylon fragiforme (white rot) and Coniophora puteana (brown rot). The antifungal activity of PAHs was determined by the disc-diffusion method by measuring the diameter of the zone of inhibition. The results showed that the antifungal activity of the tested PAHs (concentration of 2.5 mmol/L) depends on the their properties such as molar mass, solubility in water, values of log Kow, ionization potential and Henry’s Law constant as well as number of aromatic rings, molecule topology or pattern of ring linkage. Among the 12 investigated PAHs, benzo(k) fluoranthene with five rings, and pyrene with four cyclic condensed benzene rings showed the highest antifungal activity.

Velida Vatrenjak-Velagic,1 Vanes Mirovic,1 Mustafa Memic,1 Alen Hadzovic,1 Vedrana Vidovic,1 Lahira Hadzic,1 Olgica Gmaz,1 Ekrem Velagic,2 Mirza Velagic,2 Amil Habul,2 Jovo Andric,3 Zijada Krvavac,3 and Mira Grgic3 1The Faculty of Science, University of Sarajevo, B&H 2The MEDA, Engineering, Construction, Design and Environment Company, Sarajevo, B&H, and 3The Ministry of Physical Planning and Protection of the Environment, Sarajevo Canton, B&H