College of Environmental Sciences and technologies will hold a training course entitled "The Preparation of chemicals substances and methods of calculating its concentrations" In the Seminars hall within the department of Environmental Sciences for three days and for the period 14-16/4/2013. The participants will be from academic, institutional, and agricultural background. It expected for the participants to recognize the measurement, calculation and preparation chemicals concentrations. To find out how to take part in the training course above please refer to the college.