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Showing 5 results for Ghanadzade
Comparison of respiratory symptoms between welders and official staffs in one of the Arak industrial factory in 2007
Mohammad Javad Ghanadzadeh, Morteza Davoodi, Mehrab Bojari,
Volume 12, Issue 2 (9-2009)
Abstract
Background: The respiratory symptoms in welding workers have been appeare by increasing use of welding various poisoning gases and fumes in machine industry. It is necessary to evaluating of frequency of respiratory symptoms with scientific methods. Methods and Materials: In this historical cohort study, 60 non-smoker welding workers with history of at least 6 months work in welding, and 60 non-smoker office workers who were not expoused to respiratory pollution were selected from machine industry factories of Arak. Data was gathered by questionnaire. Occupationalist performed physical exams and spirometery. Data was statistically analyzed. Results: There was a significant relationship between sore throat (p=0.02), cough (p=0.04), spectrum (p=0.01), and dyspnea (p=0.007) with working in welding. But in symptoms such as rinite, hoarsening, nasal congestion, epistaxis, respiratory assessment and spirometery results difference was not significant. Conclusion: Symptoms of upper respiratory tract stimulation in welding workers were significantly more than non-expoused workers.
Disposal and filtration of wastewater in hospitals of Markazi Province in 2009
M.javad Ghanadzadeh, Ali Akbar Rezaei Ashtiani, Mohammad Rajaei, Abolhasan Faraz,
Volume 13, Issue 3 (9-2010)
Abstract
Background: Hospital wastewater usually contains pathogenic micro-organisms, drugs, radio active materials, and toxic chemical elements that in case of being disposed without filtration, will result in pollution and spread of diseases. Therefore, evaluating the status of wastewater disposal in hospitals is necessary for proper planning. Materials and Methods: In a cross-sectional descriptive study in 2008, data collection was done by means of interviews, observations, and questionnaires in all hospitals of Markazi Province. Noticing the 33 items in the questionnaire, the overall conditions of the hospitals and the methods of using the sewage system were studied, and at the same time, filtration installations and wastewater disposal systems were inspected. Results: Of all the 19 hospitals, 10 used a conventional method of direct disposal of sewage to subterranean shafts, and of the 4 hospitals with filtration installations, three were practically out of order or were not efficient. Five of the hospitals were directly linked to the city sewage system without any pre-filtration. None of the hospitals had a specialized operator of sewage filtration and disposal system. Conclusion: Wastewater disposal in hospitals of Markazi Province is not desirable therefore, such acts as conducting more specific surveys, creating a positive attitude in planners, and providing sufficient funds for filtering wastewater in some of the hospitals are suggested.
The Assessment of Knowledge, Attitude and Practice Student and Teacher About Waste Management for Developing Methods of Educational in 2012
Mohammad Javad Ghanadzadeh, Atena Bolhasani, Nader Akhavan Malayeri, Babak Eshrati, Mohsen Shamsi,
Volume 16, Issue 9 (12-2013)
Abstract

Background: Solid waste is one of the environmental pollution. Therefore the aim of this study was to survey of knowledge, attitude and practice of student and teachers about weast management for developing methods of educational in Arak city.

Materials and Methods: This is a cross sectional and analytical study that was carried out on 1739 student and 149 teacher in school of Arak city in 2012. sampling with cluster and data collection with questionnaire including knowledge, attitude, practice and appropriate resource of education for waste management. Finally data analyzed with statistical tests.

Results: The mean knowledge and attitude student was 4.1±1.9 (out of 8) and was 20.63±5.9 (out of 35) respectively. Based on most educational methods for weast management viewpoint of student book 441 student (29% ) but impact of internet very low interest 487 (32%) of student. Moreover the most educational methods based on level of education significant difference was observed (p=0.001).

Conclusion: Due to a level of knowledge and attitude of student and accsses to educational resourse and huge of weaste in school educational program planned via book, teacher and peer education for student recommended.


Quantity & quality analysis and associated management practices of solid waste generated in the general dentistry offices in the city of Arak, 2015
Ali Koolivand, Mohammad Javad Ghanadzadeh, Mohammad Sadegh Rajaee, Masoumeh , Rahim Mousavi,
Volume 19, Issue 7 (10-2016)
Abstract

Background: As dental solid waste are among the most important environmental pollutants due to its high contents of toxic and hazardous agents, suitable treatment and management of it are of great importance. The objective of this study was to quantity & quality analyses of dental solid waste and associated management practices in the general dentistry offices in the city of Arak.

Materials and Methods: 15 samples of solid waste were taken from the 5 selected general dentistry offices, classified into 66 components and 4 fractions, and then the quantity & quality characteristics were evaluated. Management practices of the solid waste were also investigated by using a questionnaire.

Results: According to the results, per capita and the average generation rate of each dentistry office were 66.71 g/day-patient and 1340.45 g/day, respectively. Potential infectious, domestic-type, chemical & pharmaceutical, and toxic wastes consisted of 54.25%, 35.14%, 8.19%, and 2.14% of the waste generated, respectively. 10 components including latex gloves, nylon & plastic, saliva & blood-contaminated kleenex, paper & cardboard, used ampoules, saliva ejector tubes, gypsum, food waste, saliva & blood-contaminated dental rolls, and nylon gloves were responsible for more than 80% of the total waste generated, respectively.

Conclusion: Each fraction of dental solid waste (toxic, chemical & pharmaceutical, potential infectious and domestic-type wastes) should be separately collected and disposed of according to the related criteria.


Prediction of Changes in Temperature-Humidity Index in the Coming Decades According to the Climate Change Phenomenon based on Radiative Forcing Scenarios in a Dry Climate
Dr Mehdi Asghari, Dr Gholamabbas Fallah Ghalhari, Dr Marzieh Abbasinia, Dr Farbod Ebadifard Azar, Dr Fahimeh Shakeri, Dr Mohammad Javad Ghanadzade, Mr Gholam Heidar Teimori, Dr Sanaz Karpasand, Dr Hossein Safari,
Volume 26, Issue 3 (August & September 2023)
Abstract
Introduction: One of the biggest environmental challenges of the 21st century is the phenomenon of climate change and global warming, which can cause numerous health problems. One significant health issue associated with climate change is the increase in the prevalence of heat stress, particularly in occupational encounters in hot outdoor environments. So this study aimed to predict and model temperature and humidity indices in the coming decades in a dry climate.
Methods: This study obtained daily atmospheric parameters, including minimum temperature, maximum temperature, and relative humidity of Kerman station, representing a dry climate, for a period of 30 years (1965 to 2005) from the meteorological organization. Modeling of these parameters and calculation of the Temperature and Humidity Index (THI) were performed using the atmospheric general circulation model HadGEM2-ES and the CORDEX dynamic microscaler model. Three different radiative forcing scenarios, including optimistic (RCP 2.6), intermediate (RCP 4.5), and pessimistic (RCP 8.5), were considered for the coming decades (three 30-year periods from 2011 to 2099). The Ethics Committe of Iran University of Medical Sciences (IUMS) approved the present study (Code: IR.IUMS.REC.1400.020).
Results: The results of the study showed an increasing trend for minimum and maximum temperature parameters in all three time periods using the three scenarios considered. Moreover, the increase in temperature in the decades of 2099-2071 was more pronounced compared to the previous decades. The results also demonstrated an increasing trend in the THI index based on all three scenarios. The average results obtained using these scenarios showed an increase of 2.11, 2.53, and 3.3 degrees Celsius, respectively, in this index until the end of the last century compared to the base decades.
Conclusions: Overall, the increase in temperature and the investigated THI index in the studied station, based on all three scenarios, will lead to changes in thermal comfort. Higher levels of thermal discomfort will not only occur in hot months and seasons but also in other seasons. Therefore, proper planning should be implemented to address the adverse effects of climate change on people's health.

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