mohammad amin ghorbanpour

Since there are various factors with different importance that determine environmental health status of hospitals, judging and prioritizing the required corrective actions using the current qualitative checklists is problematic and, in some cases, deceptive. This study explored a decision support model for hospital environmental health status to establish a quantitative method based on the analytic hierarchy process (AHP) using the Iranian National Hospital Evaluation checklist.

The research was done in two separate phases; first, score weighting of the criteria and subcriteria (questions) in the existing checklist using the AHP, and second, a field study of the environmental health status of the hospitals using a weighted checklist. In the field study, the environmental health status of the studied hospitals was sored using checklist questions, and finally, the final scores of each criterion were calculated and aggregated to determine the environmental health status of the studied hospitals.

Among the main criteria, the infection control criteria with a final weight coefficient of 0.5371, was the most important factor, and the building criteria with a final weight coefficient of 0.0341 had the lowest weight in determining the environmental health status of the hospitals. On average, the environmental health status of the studied hospitals was about 76%, which are in a moderate status.

The environmental health status of Iran’s hospitals has typically been evaluated only qualitatively and without considering their weight importance. The present study provides a flexible method for quantitative assessment of the environmental health status of hospitals.

High concentrations of respirable airborne particles can increase the risk of lung disease and consequent deaths in people exposed to it. The purpose of this study was to determine the respirable particulate matter (PM) concentration in bakeries in Saveh.

This study done as a cross-sectional descriptive study. 25 air samples were collected by means of cyclone and paper filter equipped by air sampling pump. The respirable particulate matter concertation was measured by gravimetric method. The obtained data managed by SPSS 16 software and analyzed using suitable statistics tests (mean±Stdv., regression etc.,)..

The results show Lavash bakery has the highest PM concentration (9.15 mg/m3) in comparison with two others (Sangak and Barbari).

This study revealed the density of respirable PM had high level and the workers in Saveh bakeries are exposed to a dangerous level of PM, and inhale a high level of PM in all bakeries in Saveh.

 Saveh city -located in the semi-arid area in Iran- has brackish water and it was forced to use reverse osmosis desalting systems.  Water is not distributed through the distribution network to homes so, people have to buy water from certain places and transfer water through household storage vessel. They have to buy more water and keep it at home for more than 1 week. Therefore, the probability of microbial contamination or the regrowth of microorganisms rise.  The aim of this study was to evaluate the changes in the free residual chlorine (FRC) and the number of bacteria in desalinated water samples that collected from water kiosk system that provide desalinated water for the public. Samples collected at the beginning and the end of the water network and stay for 9 days at room temperature and similar condition as public stored at home. The samples analyzed for FRC, total coliform (TC), fecal coliform (FC), heterotrophic plate count (HPC) and organic matter for 9 days. The results indicated that FRC concentration at the beginning of water network was 1 mg/L and after 9 days it was reached to 0.5 mg/L at the end of the water network. The amount of UV254 at the end of water network was 0.0134 cm-1 and after 9 days it was reached to 0.0125 cm-1. There aren’t detected any TC and FC in samples even at beginning of the examination and also, after 9 days storage of water. The number of HPC colony for samples at the end of the network it reached 22 CFU/ml, after 9 days. It was concluded that desalinated water that stored at household storage vessel in Saveh has good quality and meets standard limit value until 9 days. It should be noted that this conclusion depends on various conditions, including various environmental factors. However, Water treatment officials need to pay more attention to the amount of chlorine remaining in drinking water in Saveh because after 9 days, there was still 0.5 mg/L of residual free chlorine in the water.

Background and Nitrate, nitrite and other physicochemical parameters of the pollutants of groundwater resources which are mainly associated with agricultural and wastewater disposal areas. The aim of this study was to determine these parameters in drinking groundwater resource of Saveh city using Geographic Information System during the year of 2018 and investigation of contaminant’s in the region’s aquifer.
In this descriptive cross - sectional study, data including temperature, Nitrate, Nitrite, pH, TDS, Total hardness, Fluoride, Ammonium, Sulfate, Chloride, and Sodium’s monitoring in Saveh during the year of 2018. Monthly concentrations of these parameters were calculated, and then relationships between pollutants and region’s aquifer analyzed by GIS software version 9.3. Also, the Inverse Distance Wighted (IDW) method was used to estimate the conditions of the whole region.
Findings: The average concentration of chlorine, sulfate, electrical conductivity, total soluble solids, total hardness and sodium exceeds the permissible limits, and the non-qualitative water conditions are quite evident. Also, the amount of two magnesium and sulfate synergist ions that in their 1053 standard should not exceed 250 and 30 mg/l respectively, but unfortunately did not conform to this standard. It should be kept in mind that the high level of these two ions simultaneously can disrupt the harshness. Fluoride and nitrate levels were also acceptable range in all areas.
The highest deviation level from 1053 standard was for total soluble solids, sodium, magnesium, and sulfate. It is better to consider a comprehensive program to solve the problem, including use of nanotechnology, filtering or ion exchange