INTERNATIONAL JOURNAL OF ECOSYSTEMS AND ECOLOGY SCIENCE-IJEES, sa.4, ss.883-894, 2017 (ESCI)
Hydrogen sulfide (H2S) and Carbon monoxide (CO) are the undesired products of petroleum refineries. Herein, the chemical and physical properties, some statistical values about the H2S and CO levels measured from the different sites of the Earth are compiled from the literature. Furthermore, health issues and the concentration risk levels were compiled from literature and reported. Finally, following this detailed description, health risks were evaluated and conclusions were drawn.