Data on Nitrate–Nitrite pollution in the groundwater resources a Sonqor plain in Iran

Nitrate is a groundwater pollutant which in higher concentrations limits, leads to health hazard such as Methemoglobinemia and formation of nitrosamine compounds. In this research, the nitrate and nitrite concentrations in all water resources in the villages of Songor plain were determined and the relationship between these values with the water table and zonation of nitrate concentration were investigated in the GIS environment. In this study, 37 samples of all groundwater resources of Sonqor plain were taken in, high water (March 2016) and low water (October 2017) periods. Water nitrate levels were then determined by spectrophotometry and results compared with national standards of Iran and analyzed by SPSS. Finally, the concentration distribution mapping was carried out in GIS environment and the factors affecting nitrite changes were analyzed. Nitrate concentration of water resources of Sonqor plain was fluctuating at 3.09–88.5 mg per Liter. In one station, nitrite concentrations in the high (88.5 mg/L) and low (71.4 mg/L) water seasons were higher than the maximum limit. Low thickness of alluvium, the site of wells in the downstream farmlands, the farming situation of the region, nitrate leaching from agricultural soils and wide use of nitrogen fertilizers in agriculture were considered as the causes of the pollution in one station. Though the average concentration of nitrate and nitrite are not high in this region, but because of problematic consequences of high nitrate concentrations to human health, proper management in use of chemical fertilizers, treatment or disposal of contaminated wells and protection of water wells is highly recommended

Formation of disinfection by-products and fungal contamination data in public swimming pools: A case study in Gonabad, Iran

Existence of fungi and disinfection by-products (DBPs) in public swimming pools water are dangerous since it can seriously affect on health of swimmers. This data study aimed to determine the fungi contamination and DBPs concentration including trihalomethanes (THMs), haloacetic acids (HAAs), halamines and cyanogen halides and haloacetonitriles (HANs) of swimming pools (chlorine based) in Gonabad County, Iran. So, the fungal load and DBPs concentration were investigated in two swimming pools in the middle of spring of 2017 by collecting a number of 9 water samples and 9 samples of lateral facilities of each pool by membrane filtration technique and sterile carpet. The DBPs concentrations were measured by gas chromatograph technique. The results showed that the pools were contaminated with Dermatophyte (trichophyton mentagrophytes and epidermophyton flucosomes), yeasts, and more with opportunistic saprophytic fungi. 24.8%, 22.7%, 16.9%, and 11.4% saprophytic fungi were separated from pool side, locker room, pool water, and shower positions, respectively. 7.4% and 3.2% of yeast fungi as well as 0.23% and 0.2% of dentofacies of causative agents of tinea were separated from the pools water and showers as well as locker room and shower positions, respectively. According to the data, halamines and cyanogen halides had the highest concentrations, followed by HAAs, THMs and HANs respectively. Among the halamines and cyanogen halides, HAAs, THMs and HANs, trichloramine acid was the most dominant species, followed by trichloroacetic acid and dichloramine, respectively

Ultraviolet radiation rate in Mashhad, Iran

Todays, Climate change can be effect on the intensity of ultraviolet (UV) radiation and cause of many human diseases. In this cross-sectional study, changes of the intensity of UV ray were associated with the changes in latitude and longitude, height, climatic conditions, natural and human-made artifacts. Given that the highest radiation intensity was at the beginning of the summer, the radiation rate of UV ray in Mashhad was measured in the summer using a Hagner radiometer, the UV-A model. The radiation rate of the UV ray was determined in 2000 stations, which were 5 km far from each other. Data were analyzed using SPSSv16 software, T-test, and ANOVA tests. The results of this study showed that the radiation rate of UV ray in Mashhad was 0.49±0.143 mSv per year. The findings showed that latitudinal and longitudinal changes did not have a significant effect on the intensity of UV radiation (P > 0.001). The changes in the height above the sea level influenced the irradiance rate of UV and increasing the height above the sea level raised UV radiation (P < 0.001). Human artifacts significantly changed the rate of UV radiation (P < 0.001). Cloudy, semi-cloudy and sunny conditions had the most effects on UV radiation (P < 0.001). The results revealed that the average rate of UV ray in Mashhad was below the global standard (10 W/m2 for UV ray), and traffic in open air could not be risky. © 2018 The Author

Assessing fluoride and nitrate contaminants in drinking water resources and their health risk assessment in a Semiarid region of Southwest Iran

Spatial and temporal variability of fluoride and nitrate in groundwater resources of rural area of Saravan county, Iran were analyzed 2013�2017 using GIS (V10.3). The results were used for human health risk assessment, using probabilistic techniques. The annual mean concentration of fluoride during 2013 to 2017 in villages of Saravan county was 0.42, 0.62, 0.67, 0.57, and 0.55 mg L �1 , and the maximum values were 1.1, 1.42, 1.76, 1.46, and 1.3 mg L �1 , respectively. Also, the annual mean concentration of nitrate during 2013 to 2017 in Saravan county villages were 12.53, 14.1, 15.43, 14.34, and 14.02, and the maximum values were 66.1, 80, 35.6, 76.12, and 40 mg L �1 , respectively. Spatial, temporal, and spatiotemporal variability of fluoride and nitrate in groundwater resources were relatively not constant over the years. The calculated HQ value of fluoride was for groups of infant (0.013�0.235), children (0.035�1.83), teenagers (0.067�1.1), and adults (0.053�0.94). The maximum HQ value was >1 for children and teenagers during the study period. Meanwhile, the HQ values of nitrate were (0.005�0.4) for infants, (0.035�2.69) children, (0.025�2) teenagers, and (0.02�1.6) for adults. Hence, the maximum HQ value was >1 for children, teenagers, and adult during the study period. This study showed that children, teenagers, and adult are vulnerable groups at risk of non-carcinogenic hazards for being exposed to drinking water with high fluoride and nitrate concentration. © 2019 Desalination Publications. All rights reserved

Estimation of the groundwater quality index and investigation of the affecting factors their changes in Shiraz drinking groundwater, Iran

This study aimed to determine the groundwater quality index (WQI) and investigate the anthropogenic factors causing changes in this index in Shiraz plain. This research studied the quality of groundwater of 35 wells for five years. Groundwater samples were analyzed for pH, TDS, TH, HCO3�1, Cl�1, F�1, SO4�2, Ca+2, Mg+2, No3-1, and Na+1 and a microbial parameter was analyzed to compute the water quality index (WQI). Factors Affecting was evaluated using field studies, Google Earth, and multivariate statistical analysis and piper diagram. The computed WQI values ranged from 40.01 to 117.38. Overall, 5.7 of groundwater sites sampled had excellent water quality, while 65.7 were good. 28.6 of the samples indicated poor water quality. The zoning results showed that the water quality index (WQI) was worsening from northwest to southeast and from northeast to southeast. The correlation between water quality index WQI and changes in industrial land use and between water quality index (WQI) and changes in the unused lands were 0.46, and 0.35, respectively. Principal component analysis (PCA) on the chemical parameters revealed two factors that account for about 77.44 of the total variance in groundwater quality data set; the first factor (with high Eigen values) indicates that variation in water quality is due to natural origin. According to the results of hierarchical cluster analysis (HCA), there are three quality groups in groundwater of the research area: the first group of 8 wells, the second group of 11 wells, and the third group of 16 wells. In this context, the Piper diagram also indicates groundwater facies of the study area were Ca2+ - Mg2+ HCO3�; this is also due to water interaction, the limestone of a karst aquifer. The groundwater hydro-chemical in the study area is the majority of human activity, but it is influenced to some degree by the natural process. © 202

Estimation of the groundwater quality index and investigation of the affecting factors their changes in Shiraz drinking groundwater, Iran

This study aimed to determine the groundwater quality index (WQI) and investigate the anthropogenic factors causing changes in this index in Shiraz plain. This research studied the quality of groundwater of 35 wells for five years. Groundwater samples were analyzed for pH, TDS, TH, HCO3�1, Cl�1, F�1, SO4�2, Ca+2, Mg+2, No3-1, and Na+1 and a microbial parameter was analyzed to compute the water quality index (WQI). Factors Affecting was evaluated using field studies, Google Earth, and multivariate statistical analysis and piper diagram. The computed WQI values ranged from 40.01 to 117.38. Overall, 5.7 of groundwater sites sampled had excellent water quality, while 65.7 were good. 28.6 of the samples indicated poor water quality. The zoning results showed that the water quality index (WQI) was worsening from northwest to southeast and from northeast to southeast. The correlation between water quality index WQI and changes in industrial land use and between water quality index (WQI) and changes in the unused lands were 0.46, and 0.35, respectively. Principal component analysis (PCA) on the chemical parameters revealed two factors that account for about 77.44 of the total variance in groundwater quality data set; the first factor (with high Eigen values) indicates that variation in water quality is due to natural origin. According to the results of hierarchical cluster analysis (HCA), there are three quality groups in groundwater of the research area: the first group of 8 wells, the second group of 11 wells, and the third group of 16 wells. In this context, the Piper diagram also indicates groundwater facies of the study area were Ca2+ - Mg2+ HCO3�; this is also due to water interaction, the limestone of a karst aquifer. The groundwater hydro-chemical in the study area is the majority of human activity, but it is influenced to some degree by the natural process. © 202

Corrigendum to data on nitrate�nitrite pollution in the groundwater resources a Sonqor plain in Iran Data in Brief Volume 20 (2018) Pages 394�401, (S2352340918308734), (10.1016/j.dib.2018.08.023)

The authors regret to say that they have forgotten to cite a key reference for the Table 4 and Fig. 7 during the preparation of draft manuscript. In this regard, the following citation should be considered as the reference for the mentioned sections: Setareh Parasto, Rezaei Mansour, Hassani Amir Hossam, Zeinatizadeh Ali Akbar. Distribution of groundwater pollution to nitrate in GIS environment: A case study of Songhar plain. Journal of Kermanshah University of Medical Sciences (improvement) (journal of Kermanshah University of Medical Sciences). 1393 cited 2021October28; 18 (3 (76)): 157�164. Available from: https://www.sid.ir/fa/journal/ViewPaper.aspx?id=224048.The authors would like to apologize for the authors of the above-detailed article any inconvenience caused. © 2022 The Author