فهرست مطالب mojtaba zokaie

Investigations of accidents in industry have shown that various factors affect the occurrence of accidents. Therefore, the aim of this study was to investigate the relationship between the prevalence of occupational accidents with individual and occupational factors in the industrial work environment of Qom province.

This descriptive study was performed based on the incidents registered in the Labor Inspection Office of Qom Province in 2017. All cases were selected and 1048 cases were reviewed according to the accurate registration of incidents. Necessary parameters were extracted from accident reporting forms and their frequency and frequency percentage were analyzed by SPSS 18 software.

The highest number of accidents was in the age range of 20-30 years with less than 5 years of work experience. The lowest number of accidents was related to bachelor's degree and higher. In addition, a high number of victims (41.5%) were involved in construction activities. In the study of the working population, the highest number of accidents was related to workshops with a staff number of 10-24. In investigating the causes of accidents, 33.2% of accidents were identified as lack of safety training and 24.2% as lack of safe work procedures. In the group of equipment causes, the highest share of accidents was due to the lack of proper equipment and in relation to human causes, the main reason for the accident was the non-stopping of the device during repair.

The results of the present study showed that demographic and occupational factors, such as age, work experience, and type of industry were very important in the occurrence of industrial accidents. In addition, it was found that managerial, equipment and human causes each have an effective role in the occurrence of accidents, which can be significantly reduced using more supervision by managers and recruiting safety and health officials, and finally observing safety principles in all areas of work.

Analysis of accident data based on social and economic factors can be useful in determining injury patterns and establishing operational policies to improve safety and health. The purpose of this study is to investigate the effect of socio-economic factors in accidents.

This descriptive-analytical study was conducted based on information obtained from the Labor Inspection Office of Qom Province in 2017. In this study, the required information was extracted from recorded accident forms of 1048 accident cases occurred among victims who were over 18 years old. In this study, the dependent variables include the outcome of accidents divided into two groups of accidents leading to death and injury. Data were analyzed using Stata Software version 23 (Stat Crop. USA).

Based on the results, the presence of a safety officer in the industry reduced the risk of accidents leading to injury (AOR = 0.87, 95% CI: 0.72-0.91, P<0.05), people who had received safety training were 0.0009 times less likely to experience accidents leading to injury compared to the other group (AOR = 0.009, 95% CI: 0.0-0.16. P<0.05), and people with undergraduate education were 1.98 times more likely to experience accidents leading to injury (AOR = 0.009, 95% CI: 1.25-2.2. P<0.05). It was further found that people who have experienced the accident beforehand are less likely to have accidents leading to injury than the other group (AOR = 0.05, 95% CI: 0.005-0.72. P<0.05).

Therefore, as indicated, many factors have domino effects on different social damages and problems. Accordingly, to lower accidents and modify workforce cul ture, multi-faceted strategies should be applied properly.

Most industrial accidents are due to unsafe behaviors in the workplace. Therefore, the present study was aimed to investigate the role of individual factors on the consequence of accidents. This descriptive-analytical study was carried out based on data obtained from 1048 accidents registered in the Labor Inspection Office of one of the industrial provinces of Iran. In this study, individual factors were extracted from accident reporting forms and analyzed by SPSS software version 18. In the current study, the results showed that the least number of accidents was related to employee who had a bachelor degree or above. Of 95% reported fatalities were male and 73% of them were married. The results of statistical test showed that there is a significant relationship between outcome type and marital status (p <0.001). It was also found that the employees under 30 years old had the highest number of minor injuries and death. Fisher test showed a significant relationship between age and outcome (p <0.001). All minor, major injuries and death cases occurred among workers with less than 5 years of work experience. Also the workers with 25-30 years of work experience had the lowest percentage of accidents. The results of Chi-square test showed no significant relationship between outcome type and work experience (p <0.001). Individual factors such as gender, citizenship, age group, marital status, educational level, work experience and related work experience have an important role in the frequency and severity of accidents in industries.

With the developing use of electricity in all aspects of human life, electricity accidents have also increased. One of the main components of the for the prevention policy, is the safety performance assessment of the organization's or industry's by using appropriate performance indicators with related operations.

This study was a descriptive-analytical of 6 steps including: analysis of work Breakdown Structure of the project, preliminary hazard analysis of the operation, the establishing of the accident causal network, determination of control measures, extraction of active performance indicators and validation of the indicators.

In this study, the probability of occurrence of electric shock was 0.053 calculated using the method of BN and 11 active performance indicators were developed. The R-square value of the incident frequency with the active indicators of the total project was 0.819 and P-value was less than 0.05. Therefore, these results indicate that the correlation between incident frequency as an associated variable and active indicators as independent variables in the whole project is significant.

As the project progresses, the nature and level of risk of the operation of construction projects is changing. Therefore, indicators of safety performance measurements in these projects should be sensitive to rapid changes. For this reason, active indicators with a short-term measurement period are more effective in measuring the safety performance of construction operations.

One of the pollutants that is developing in human life day by day is Magnetic field. In modern urban transport systems, diesel motors have been replaced with electric motors, working with alternating and direct currents, and leading to occupational exposure of drivers with magnetic fields. This study aimed to determine the urban train's drivers exposure with static magnetic fields and compare it with national occupational exposure limits.
In order to measure the train's drivers exposured with static magnetic field, several samples were selected from urban AC and DC and AC intercity trains, in the 1,2,4, and 5 lines of Tehran, Iran. After determination of the sampling location, static magnetic field was measured by three axes magnetic field meter (HI-3550), according to the standard IEEE std C95.3.1 and previous studies. In order to analyze the data, SPSS software (ver. 20) was used.
The maximum exposure of drivers was in DC trains- line 2- (0.52 mT), meanwhile, average exposure of AC trains driver (0.095 mT) was higher than DC trains driver (0.081 mT). The average magnetic flux density between different lines has not have significant differences. The highest levels of time-weighted average exposure were related to line 1 AC train drivers (0.06 mT).
Exposure of train’s drivers was 10 time higher than background level, indicating a significant exposure in this job. However, in none of the assessment situation, the whole body exposure of train’s drivers was not exceeded from National Occupational Exposure Level (TWA= 0.2 and ceiling= 2 T). Of course, it does not imply that this level of exposure is completely safe, because different studies have reported health problems even at lower values of the magnetic field.

Most of Iranian Oil Terminals are located in tropical regions and consequently, disorders of heat stress among workers are expected. There are many heat stress indices with self-advantages and disadvantages which are used for evaluating the amount of heat stress. The aim of the present study was to evaluate the reliability of WBGT, ET and CET indices by comparison to core body temperature in Kharg Oil Terminal Company. Participants (n=94) were workers in different units of the terminal. After identifying units and type of activities, the air and wet temperatures, WBGT, and core body temperature (oral and ear drum) in three situations including outdoor and indoor activities were measured. The means and standard deviations of WBGT, ET, and CET in the indoor and outdoor workplaces were 26.9±4.29, 25.94±4.05, 26.11±3.6 C° and 29.76±3.51, 28.03±4.05, 29.36±3.51 C°, respectively. The statistical correlation between the above mentioned heat stress indices with oral and tympanic temperatures were significant (p<0.001). The regression equations showed that the most determinant coefficient belongs to WBGT and oral temperature. It was concluded that the WBGT, ET, and CET with core body temperature had significant correlations and that WBGT was the most accurate index to determine the heat stress among workers.