Data on fluoride concentration levels in cold and warm season in City area of Sistan and Baluchistan Province, Iran

The need for fluoride in drinking water to the extent that reduces the amount of tooth decay and the other hand does not cause dental fluorosis, has been well documented as an important fact. The aim of this research is to survey values of fluoride in drinking water in Sistan and Baluchestan. In this descriptive and analytical study, the number of 551 samples during 4 seasons of 2013 year from rural drinking water sources via rural water and Wastewater Company has been taken. The concentration of fluoride in water samples was measured using SPADNS method. Results shows that the average concentration of fluoride in drinking water supplies for the rural region of Khash, Sarbaz, Iranshahr, Saravan, Nickshahr city are 0.72 (±0.31), 0.55(±0.21), 0.33 (±0.127), 0.6 (±0.24), 0.435 (±0.23) respectively.


a b s t r a c t
The need for fluoride in drinking water to the extent that reduces the amount of tooth decay and the other hand does not cause dental fluorosis, has been well documented as an important fact. The aim of this research is to survey values of fluoride in drinking water in Sistan and Baluchestan. In this descriptive and analytical study, the number of 551 samples during 4 seasons of 2013 year from rural drinking water sources via rural water and Wastewater Company has been taken. The concentration of fluoride in water samples was measured using SPADNS method. Results shows that the average concentration of fluoride in drinking water supplies for the rural region of Khash, Sarbaz, Iranshahr, Saravan, Nickshahr Samples were taken via polyethylene packaging with volume of 1 l from any source of drinking water provided for residents. Also samples were transported to the water laboratory in each city as soon as possible in a specified conditions Experimental features Determine the concentration levels of fluoride

Data source location
Sistan and Baluchestan province. Iran

Data accessibility Data are included in this article
Value of the data Based on the data, Fluoridation of drinking water in rural areas with less than the WHO optimum value is recommended.
Based on the data, in areas with low level of fluoride in drinking water, consuming food and beverages with high level of fluoride is suggested.
Combining the reported data on fluoride concentrations in drinking water with information on ambient temperature is very useful.
The data shown here will be informative for health policy makers by assigning interception actions against adverse health effects of fluoride with considering fluoride intake by drinking water and food.

Data
See Figs. 1 to 3 and Table 1 here.

Study area description
Sistan-and-Baluchistan province in South-East of Iran between the latitudes 25°4′-31°25′ N and Longitudes 58°55′-63°20′ E, encompassing an area is about 18175 km 2 (Fig. 4).The area has a hot climate, and the highest and lowest air temperatures respectively are 50°C and −7°C, with an annual average of 25°C.

Sample collection and analytical procedures
This cross sectional study has been conducted on rural drinking water sources under supervision of department of rural water and waste water province for a year. According to standard method number 2348 Institute of Standards & Industrial Research of Iran, Sampling was carried out randomly  in different seasons. The number of sampling, was variable. Samples were taken via polyethylene packaging with volume of 1 l from any source of drinking water provided for residents. Also samples were transported to the water laboratory in each city as soon as possible in a specified condition. Fluoride concentration was estimated using HACH device (spectrophotometer DR/5000 Company, USA) -Spectrophotometer (DR 5000-HACH). By SPADNS Method at wavelength of 580 nm [1][2][3][4][5][6]. Ultimately, with employing Arc GIS 9.3 software, fluoride ion dispersion at the provincial level, with using geographic coordinates (longitude and latitude regions) from collected water place, has been depicted, then description of critical points was discussed. Excel software has been used for statistical analysis of results and its comparison with national standard number 1053 Institute of Standards and Industrial Research of Iran with announcement of maximum allowable concentration of fluorides in drinking water (0.5 to 1.5 mg/l) [7][8][9][10][11].

Transparency document. Supporting information
Transparency data associated with this article can be found in the online version at http://dx.doi. org/10.1016/j.dib.2018.03.060.