فهرست مطالب سیده حوریه فلاح

Exposure to high levels of noise can lead to physical and psychological problems. The purpose of this study was to determine the sound level of welding centers in Babol.

This descriptive study was randomly performed in 20 welding workshops in 2018. The sound level was measured by sound level meter. The researcher-made form was completed by the welders to determine the health consequences of the sound.

Mean and standard deviation of sound level at the side of the machine was122.75±7.65 dB and at one meter away from the device was 87.45±12.76 dB. 42 (84%) and 8 (16%) patients reported that sound persistence was in half shift and less than half shift. 22 (44%) had hearing loss in the last two years.

The results showed that the level of noise was higher than the standard in all measurements next to the device and one meter away from it in all welding centers.

Water contamination of baths causes gastrointestinal, skin and fungal diseases due to pathogens. Therefore, this study was conducted to determine the microbial contamination of natural swimming places water in Behshahr.

The present descriptive study was performed in three natural swimming places. Nine-tube fermentation method was used to determine the bacterial contamination of coliforms, and membrane filtration method was used to measure enterococci. Pearson's correlation coefficient was used for data analysis. 

Total coliforms in 2 samples (22.22 %) were undesirable and in 7 samples (77.78 %) desirable; thermophilic coliforms in one sample (11.11 %) were undesirable and in 8 samples (88.89 %) desirable; and intestinal enterococci in one sample (11.11%) were undesirable and in 8 samples (88.89%) desirable. There was a significant relationship between total coliforms and fecal coliforms and total coliforms and intestinal enterococci (p = 0.001).

Totally, bacteriological contamination index was desirable in the investigated natural swimming places, but in a limited number of samples, the contamination indices were higher than the standard. Funding This study did not have any funds.

 None declared.

This project was not registered. How to cite this article: Amouei A I, Jafari Atrabi M , Fallah S H , Asgharnia H A, Aghalari Z. Survey of Microbial Contamination of Water in Natural Swimming Places of Behshahr in 2017: A Short Report. J Rafsanjan Univ Med Sci 2019; 18 (8): 839-48. [Farsi]

Increasing population growth and shortage of drinking water in arid and semi arid countries like Iran has made optimal use of water in different uses. Give attention to these limitations and water quality due to bottled water use is considered as a serious solution in distribution of sanitary water. Some of the pollutants such as nitrate and nitrite and water components may lead to undesirable effects such as carcinogenesis, cardiovascular disease and hypertension, and effect on the nervous system. So, consumers should be aware of the quality of the water. The purpose of this study was to determine the amount of nitrate and nitrite in some bottled waters in Babol city, Iran.

This cross-sectional and descriptive study was performed on 28 samples of 14 bottled water factories which selected randomly. Two samples of each factory were gathered once every two weeks. The amount of nitrate and nitrite was measured by DR/2000 spectrophotometer. Limit for nitrite in drinking water was 0.2 mg/L and for nitrate was 50 mg/L. Bottled water were classified from A to N brand and then evaluated and compared.

Maximum amount of nitrate and nitrite was 35.2 and 0.0462 mg/L, respectively and minimum amount of nitrate and nitrite was 8.36 and 0.0049 mg/L, respectively. Nitrate and nitrite of all samples in standard limits was less than 0.2 and 50 mg/L.

The results of this study showed that the amount of nitrate and nitrite in 14 different brands of bottled water available in Babol city is based on International and National standards and do not threaten the health of consumers.