A Study on the Heavy Metals in Crayons and Oil Pastele

크레용 및 파스중의 중금속에 관한 연구

  • Lee, Chung-Kyung (Dept. of Health Administration, Chin]u Nurse and Health Junior College) ;
  • Lee, Sang-Bong (Dept. of Preventive medicine, College of Medicine, Gyeongsang National University)
  • Published : 1987.10.01

Abstract

This study was carried out to determine the content of heavy metals in Crayons and Oil Pastele. Samples were collected from 3 manufacturing companies of Crayons and 2 manufacturing comppanies of Oil Pastele. The content of lead and cadmium were analyzed by flame atomic absorption spectrophotometer. The results obtained were as follows: 1. The average content of lead in Crayons and Oil Pastele were 26.2 ppm, 70.5 ppm, and the range 11.0-69.5 ppm, 26.5-353.0 ppm respectively. 2. The average content of cadmium in Crayons and Oil Pastele were all 4.1 ppm and range were 3.0-5.0 ppm, 2.5-5.0 ppm respectively.

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