Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : University of Technology

Measurement of Environmental Awareness of University of Technology Students towards some Environmental Statements

Azhar M. Haleem; Daliah M. Hassan

Engineering and Technology Journal, 2016, Volume 34, Issue 3, Pages 59-67

Environmental awareness level for university of technology students was investigated at scholastic year (2013-2014) towards some environmental statements suggested by the researcher and endorsed by ten of local environmental experts. 341 students were selected by using random selection technique divided into (176) male and (165) female belong to different scientific departments and different stream. Questionnaire form was designed, included 30 questions distributed at three contents, pollution, environmental awareness and environmental conservation, ten questions for each topic, Likert quaternary scale with known weight was used. All findings were analyzed by descriptive analysis, T test and variable analyses (ANOVA I). From the results, we note environmental awareness towards environmental status among students of university (72.1%) Compared with the supposed ratio (70%), there is no significant differences according to gender variable.

Radon Concentrations Assessment and Effective Dose Estimation in The Buildings of University of Technology/ Baghdad

Sahar A. Amin; Saadi M. D. Al-Nuzal; Muwafaq H. M. Lami and; Shemaa K. Kataa

Engineering and Technology Journal, 2014, Volume 32, Issue 13, Pages 3216-3227

The objective of the present work was to assess the distribution of radon in the University of Technology buildings, Baghdad - Iraq and to identify the effective dose of radon exposure to the staff using passive dosimeter (SSNTD) CR-39. One hundred CR-39 dosimeters were distributed over different buildings in the University campus according to the number of floors area. The exposure time started from December 2012, and the dosimeters were left inside buildings for 40 days. Only 93 dosimeters were collected, while the remaining 7 were considered lost. The average concentrations were calculated in units of Bqm-3, for each sample in each building, and then are repeated after grouping in each floor of the same building. The average radon concentrations per building and at the university as a whole were also calculated.
Radon concentrations were found to vary from 80.1 to 416.7 Bqm-3. The highest radon concentration with a mean value of 416.7 Bqm-3 was found atuniversity press section building, while the lowest radon concentration was found at the welding division 2 building with a mean value of 80.1 Bqm-3. The average value of radon concentration at the university was found to have the value of 181.9 Bqm-3 which is less than the recommended value of 200 Bqm-3 UNSCEAR [18].
Dose rate (in µSv/h), annual dose rate (in mSv/y & WLM/y), cumulative dose (in mSv& WLM) and cancer risk were also calculated. It was found that the university staffs are exposed annually to 2.083 mSv which equal to 0.231 Working Level Month (WLM) from radon gas and its short-lived daughters. Hence, a person takes on the average an annual effective dose equivalent to 2.56and 1.84mSv according to average value considered by UNSCEAR [18] and ICRP [19], respectively. This implies an expected value for lung cancer probability of 0.0046.