Mehdi Fazlzadeh; Rohollah Rostami; Sadegh Hazrati
Volume 23, Issue 1 , May and June 2016, , Pages 161-168
Abstract
Background & Objectives:Carbon monoxide (CO) is a colorless, odorless, tasteless, and toxic gas. It is one of the important indoor and outdoor air pollutants. This study was aimed to measure CO concentrations in outdoor and indoor air of residential homes in Ardabil city and to compare the results ...
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Background & Objectives:Carbon monoxide (CO) is a colorless, odorless, tasteless, and toxic gas. It is one of the important indoor and outdoor air pollutants. This study was aimed to measure CO concentrations in outdoor and indoor air of residential homes in Ardabil city and to compare the results with air quality standards. Materials & Methods:For this descriptive-analytical study, concentrations of CO in indoor and outdoor air were measured in 50 dwellings during summer and winter in 2013. Concentrations of CO were measured at breathing zoon using a portable Gas meter for a period of one hour. Results:CO concentrations in outdoor air (2.18±1.13 ppm) were higher than the indoor air (0.57±0.63 ppm). Also, CO concentrations of indoor air in winter (0.63±0.62 ppm) were slightly higher than the summer amounts (0.51±0.65 ppm). The indoor to outdoor (I/O) ratio of 0.37±0.76 was obtained for CO concentration. Conclusion:According to the obtained results, CO concentrations are well below the guideline values and, therefore, Ardabil indoor and outdoor air quality is acceptable in terms of CO indicator.
Aziz Kamran; Gholamreza Sharifi rad; Siamak Mohebi; Heshmatollah Heidari; Sadegh Hazrati
Volume 22, Issue 5 , November and December 2015, , Pages 927-936
Abstract
Background: Nutrition is considered as the most important in hypertension control however, little information is available about the nutritional status of hypertensive patients in our country. This study was aimed to determine the predictive power of perceived benefits, barriers, self efficacy and knowledge ...
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Background: Nutrition is considered as the most important in hypertension control however, little information is available about the nutritional status of hypertensive patients in our country. This study was aimed to determine the predictive power of perceived benefits, barriers, self efficacy and knowledge from fat intake and received dietary energy.
Material and Methods: This cross-sectional study was conducted on 671 rural hypertensive patients with using multistage random sampling method in Ardabil city in 2013. Data were collected by a valid and reliable questionnaire with interview method. Nutritional data were extracted by Nutritionist 4 software and analyzed the SPSS 18 software using Pearson correlation, multiple linear regressions, ANOVA and independent T-test.
Results: the mean of total fat, saturated fat and energy were 92.1±27.1, 32.3±9.7 and 2539.4±398.9 respectively. Total fat, saturated fat and energy had a negative significant correlation with perceived benefits and self efficacy and a positive significant correlation with perceived barriers. Perceived barriers, benefits, efficacy and knowledge predicted 20.9% of the energy change variations, 32.42% of the changes in saturated fat intake and 25.7 of the change in fat intake.
Conclusions: Dietary perceptions in the framework of perceived benefits, barriers, self-efficacy and knowledge could explain of total fat and saturated fat and energy intake in acceptable range.