EVALUATION OF IRON INGESTION WITH DRINKING WATER IN DIFFERENT AGE GROUPS OF BIROBIDZHAN
The present article evaluates the iron ingestion with drinking water into a person's body and the non-carcinogenic risk of this process. The purposes of the article is quantitative assessment of iron content in drinking water of Birobidzhan city, and establish quantitative characteristics of its ingestion with drinking water in different age groups. The material includes the analysis of 480 samples of drinking water. The research period lasted from January 2013 up to December 2015. Photometric method was used to identify iron mass concentration. It was found that daily iron ingestion with drinking water in Birobidzhan is on the average from 0.005 to 0.067 mg/kg per day for an adult with regard to its concentration in drinking water and from 0.006 to 0.155 mg/kg per day for children with regard to their age and other factors. The obtained results do not exceed the reference dose of 0.300 mg/kg per day. For the standard values of exposure factors the potential dose of iron ingestion with drinking water is from 3 942 to 53 217 mg for an adult for 30 years and from 264 to 7 983 mg for a child for 6 years. The smallest hazard ratio HQ = 0,017 was obtained in estimating water consumption by the adult population of Birobidzhan, for the group of samples of drinking water with concentration of total iron 0.18 mg/dm3. The greatest hazard ratio HQ = 0,517 was obtained in estimating water consumption by the group of children less than 6 years, for the group of samples of drinking water with a total iron concentration of 2.43 mg/dm3.