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Population growth, urbanization and anthropogenic activities are becoming a serious problem for water resources in Turkey, which necessitates their monitoring and maintenance of water quality. In this study, water quality was implemented in the Porsuk Stream in Inner Anatolia, Turkey. Water samples were collected at monthly intervals between the period of 2008-2010 at four selected stations. Twenty one water quality parameters were measured which are water temperature (T), pH, dissolved oxygen (DO), electrical conductivity (EC), salinity, turbidity, chloride, suspended solids, dissolved solids, organic nitrogen (Org-N), ammonium nitrogen (NH3-N), nitrite nitrogen (NO2-N), nitrate nitrogen (NO3-N), total organic carbon, biological oxygen demand (BOD), chemical oxygen demand (COD), total coliform, alkalinity, orthophosphate phosphorus (PO43--P), total phosphorus and chlorophyll-a. The monitoring was conducted to see how the water quality changed along the stream in response to various anthropogenic activities. Besides, a paired t-test was utilized to determine the concentration differences at stations above and below the single most important point source of pollutants (Eskişehir city). Moreover, a regression model was used to establish relations between water quality parameters and flow and to estimate nonpoint source loadings.

When the whole earth is considered as a geographic place, it is clearly seen that the physical and social processes in the Earth’s crust have a direct or indirect connection with geography. In this century named information era, it is vital to find new solutions to people’s problems by getting different results from gathering, providing, and querying information.

Geographic information systems are frequently used in the preparation and implementation stages of environmental impact assessment (EIA) projects. However, the failure to use spatial data effectively during the monitoring phase, which is the final step of the assessment process, causes the inability to determine whether the activities undertaken in the report are implemented. This situation causes EIA reports and activities to be questioned or even not accepted by the public.

By inter-organizational data sharing, geographical data needs can be met and duplicate data productions can be avoided.  However, the problem of updating the geographical data provided always comes out as the real problem.  At this point, there are approaches that are defined as Crowdsourcing which refers the way of solving the problems of the institutions by utilizing the knowledge and experience outsourced. The most important institutional concern regarding crowdsourcing and geographical data extraction reveals itself as data consistency and accuracy.

With the system developed within the scope of this study, the status of EIA projects in implementation with the development of the project will be effectively controlled with the participation of the administration and the public. A crowdsourcing-based system has been prepared and introduced to ensure the participation of the public. With this study, the development of the project and the problems experienced during the monitoring phase can be controlled. Thus, it will be ensured that any negative situation that could be experienced will be prevented or minimized in a way that will not harm the environment.  

This study investigated optimum operating conditions of supercritical water oxidation (SCWO) for octol and compared the degradation of its components TNT (2,4,6-trinitrotoluene) and HMX (octahydro-1,3,5,7- tetranitro-1,3,5,7-tetrazocine, octogen) under the same conditions. Pilot scale experiments were conducted at various temperatures, reaction times and oxidant amounts. Removal efficiency, by-product analysis and toxicity tests were selected as the performance criteria for the SCWO. Optimum conditions were determined as a temperature of 500 C, 120 s of oxidation time and an oxidant ratio of 150%. Removal of octol was achieved at a rate of 99.99%, while TNT and HMX were removed individually at a rate of ~85% when they existed in the wastewater. No toxicity was observed at the end of the octol oxidation, whereas toxicity was found in the TNT and HMX oxidation due to the formation of TNT isomer and aniline. Higher initial organic material concentrations promoted the removal rates. These results demonstrated that SCWO can be effectively used for the degradation of ammunition wastewater even when concentrations are high.

Polycyclic Aromatic Hydrocarbons (PAHs) are aromatic hydrocarbons with three or more fused benzene rings that include carbon and hydrogen. These are thought to be harmful to human health, and we cannot avoid being exposed to them because they are widely disseminated throughout the environment. PAHs enter our bodies through the air, water, food, and soil. The developments in different sources of generation, analysis, and remediation approaches are reviewed in this paper based on recent available literature. The chemistry of PAHs, their exposure routes, and their health implications are also discussed. In this manuscript future scope of work as well as removal and reduction of carcinogenic PAHs are also discussed briefly. These types of review article are one of the most promising solutions to reduce air pollution issues from environment. This study could be one of the best studies to reduce carcinogenic pollutants from our environment.