The Assessment of H2S Emission from Araç Stream, in Karabük

Abstract

Odor pollution is an important type of pollution that is subject to complaints in terms of quality of life and health. Since the odor perception is a sensorial process that occurs naturally with breathing, it is difficult to avoid when exposed. H2S is one of the main sources of odor pollution and wastewater reservoir, estuarine and polluted river or waterways are among the most suitable areas for H2S formation. The aim of this study is to determine the changes in H2S concentrations on Araç Stream. Therefore, in this study, H2S concentrations were determined instantaneously by using portable handheld gas monitors in air samples from the surface of Araç Stream at 15 points within the boundaries of Karabük city, and at the same time, pH and temperature values were determined. According to results, there were statistically significant differences in the H2S and pH values between the sampling points (p <0.05). H2S concentration decreased in the order according to the sampling points as SP10< SP1< SP11< SP2< SP12< SP3< SP13< SP14< SP7< SP8< SP9< SP15< SP4< SP5< SP6. The highest level was determined after the industrial zone and the lowest levels were determined at the furthest point from the city center and industrial facilities. The results were shown in a map by using ArcMap program of ArcGIS software package.