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http://dx.doi.org/10.5668/JEHS.2020.46.6.646

A Study on Pollution Conditions and Management of Sand Flooring Related to Animal Feces - Nitrogen Analysis Method Development -  

Jeong, Won-Gu (Gangwon Institute of Health and Environment)
Ha, Ji-Young (Gangwon Institute of Health and Environment)
Oh, Geun-Chan (Gangwon Institute of Health and Environment)
Huh, In-Ryang (Gangwon Institute of Health and Environment)
Choi, Seung-Bong (Gangwon Institute of Health and Environment)
Publication Information
Journal of Environmental Health Sciences / v.46, no.6, 2020 , pp. 646-654 More about this Journal
Abstract
Objectives: Users of parks or children's play facilities have pointed to pets' bowel movements as the most serious problem when using them. In prior studies, a very low detection rate of parasites (eggs) in sand flooring materials has been found. Even though feces have been identified, no parasites (eggs) have been detected. Method: A standard solution of nitrate nitrogen was used to verify the reliability of a new nitrogen analysis method. The linearity, precision, and accuracy of the nitrate nitrogen analysis method were verified. Using this method, the pollution distribution of the sand flooring material and the degree of pollution at each point were investigated. Results: As a result of the verification of the nitrogen analysis method, the linearity was found to be good at r2=0.999 when distilled water is mixed in a standard substance solution. The standard substance additive solution r2=0.968 was found to be good. Precision represented 0.01 to 0.06% RSD for peak height. The recovery rate was 92.4 to 104.0 percent, indicating high accuracy. According to the same method of analysis, the flooring material sand at a general amusement facility with the largest number of concealed spaces was nitrate nitrogen 6.1 times higher than at the entrance of the playground. Also, in a comparison between clean sand and sandy flooring, the average nitrogen concentration of the sand flooring material was 24.4-167 times higher than pure sand. Conclusions: As such, no parasites (eggs) were detected at all points under investigation, but the sand flooring was exposed to animal fecal contamination. Therefore, the management of nitrogenous components should allow accurate identification of animal fecal contamination so that the timing of sand replacement can be managed hygienically and safely.
Keywords
Animal feces; children's play facilities; nitrogen analysis; sand;
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