Sohrab Delangizan, Zainab Jafari Motlagh,
Volume 6, Issue 1 (5-2013)
Abstract
Background
and Objectives:
Dust phenomenon has adverse effects on the health of the population.Due to the
increasing concentration of Kermanshah dust phenomenon in recent years, The aim
of this study was to measure the concentration of the sensitivity coefficients
between dust phenomenon hospitalization and mortality rates for heart and
respiratory.
Materials
and Methods:
This was a descriptive study in which we studied the sensitivity coefficient of
hospitalization and mortality rates for heart disease and respiratory to
changes of dust concentration.. The study duration was during March-September
2010 and 2011. We collected the dust
phenomenon data from Kermanshah Province Environmental Protection Department.
The admissions and mortality of the cardiovascular and respiratory sufferers
was collected from the Imam Ali, Imam
Reza, and Imam Khomeini governmental hosiptals in Kermanshah.
Results: 1% increase in air pollution
caused by the dust phenomenon will result in increasing about 0.5 % of the respiratory patients, 1% cardiac patients,
and about 0.3% of the heart disease mortality. The relationship between dust
phenomenon and respiratory sufferers was statistically not significant.
Conclusions: We found that respiratory and
cardiovascular hospital admission has a high sensitivity to dust phenomenon.
This sensitivity has increased from 2010 to 2011. This sensitivity was greater
for males than females. At least, during
March-September 2010, for every 100% increase in the concentration of dust
phenomenon, cardiovascular mortality increased by 29%.
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Mohammad Sadegh Sekhavatjou, Roya Zekavati, Mohsen Peymani Froshani,
Volume 6, Issue 3 (12-2013)
Abstract
Objectives: Many of non-respiratory and respiratory disorders are associated with bioaerosols in indoor and outdoor air. The best conditions for bioaerosols life are high humidity and moderate temperatures, which exist usually in indoor spaces such as the prisons, where density of individual is high. Pathogen spreading centers cause the prisoners health at risk of disease outbreaks through airborne and breathing, sneezing, and coughing. Therefore, the aim of this research work was to measure concentration of particulate matters and also to identify and determine bacteria existing in the prisoners breathing air at high-density areas in one of the prisons and their relationship with each other.
Materials & Method: we conducted this research during summer and winter of 2012. We used TSI apparatus for collecting particles (PM2.5 and PM10). Blood agar and EMB agar media were applied to measure bacteria in indoor air (bedchambers and clinical admission wards) of the prison. According to NIOSH 0800 method, High volume pump with 28.3 L/min flow and a Single-stage Anderson Impactor were used for sampling. The time of measuring for each plate was 2.5 min. Finally, the data achieved were analyzed using SPSS after counting and detecting bacterial colonies grown and determining its density (CFU/m³) for two consecutive seasons of summer and winter. The tests analyzed by SPSS were ANOVA, Post hoc, correlation, and Pearson correlation tests.
Results: Amounts of particulate matter in bedchambers were exceeded than 24-hour EPA limits, while it was less than the limits in clinical admission wards. Gram-positive and gram-negative bacteria were found in three bedchambers (50% of the bedchambers) however, gram-positive bacteria were cultivated only in three bedchambers. The maximum bacterial contamination was measured at the main Lobby of the prison and bedchamber II and the minimum value was observed in admitted patient and TB patient wards. Results showed that there is no significant relationship between the particulate matters and the bacterial density during neither summer nor winter, but there is a strong and direct relationship between the prisoners population density, ventilation systems, and bacterial density n indoor air of the studied prison.
Conclusion: Based on the results, the maximum contamination load and exceeded concentration was observed in public sections and bedchambers. This findings were attributed to the daily entry of new prisoners, high population density in prison, presence of ill prisoners, prisoners with hidden respiratory disease showing no symptoms yet, old building, climatic conditions of the region, low efficiency of ventilation systems, and influx of particulates. To filter and purify prison indoor air, it is crucial to take serious action plans such as reducing criminal population density, sanitary and engineering measures
Maryam Delfani, Maryam Mohammadi Rouzbahani, Nasrin Choobkar, Noushin Salimi,
Volume 15, Issue 3 (12-2022)
Abstract
Background and Objective: Today, oil and gas industries are important resources for obtaining energy and income. During the production of oil and gas, very complex compounds that include organic and inorganic substances, petroleum hydrocarbons and aromatic and aliphatic compounds are transferred to the environment. benzene, toluene, ethylbenzene and xylenes, which are called BTEX for short, are very important monoaromatic pollutants. Therefore, the present study was conducted to investigate the effect of exposure to BTEX on some clinical factors of the exposed people in the oil warehouse and office workers in Kermanshah National Oil Products Distribution Company.
Materials and Methods: This cross-sectional study was conducted in 2018. The samples of this study include the personnel working in the oil warehouse and the office staff of the National Oil Products Distribution Company in Kermanshah. After completing the demographic information of the participants in terms of the inclusion criteria and after collecting the results of the physiological tests of the employees, SPSS19 software was used for statistical analysis.
Results: The results of the present study showed that the spirometric indices decreased in the workers exposed to BTEX compounds, but it was not statistically significant. Also, the number of red blood cells (6.73%) was significantly lower in non-administrative employees, as well as red white blood cells (6.61%), SGOT (10.14%) and SGPT (5.09%) in non-administrative employees. It has been more.
Conclusion: The number of platelets was higher in office workers. Considering the dangers of BTEX pollution for human health, it is recommended to use preventive measures such as using a special mask and a shift work system.
