Dietary exposure to lead by children and adults in the Jinhu area of China |
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| Authors: | C-N Wang X-Y Song Q Gao F Wang P Liu Y-N Wu |
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| Affiliation: | 1. Department of Nutrition and Food Hygiene , School of Public Health, Southeast University , Nanjing, China wcnseu@126.com;3. Department of Nutrition and Food Hygiene , School of Public Health, Southeast University , Nanjing, China;4. The Supervision, Inspection and Testing Center of Agricultural Products Quality and Security , Ministry of Agriculture , Jiangsu, China;5. Department of Epidemiology and Biostatistics , School of Public Health, Southeast University , Nanjing 210009, China;6. Chinese Center for Diseases Control and Prevention , National Institute for Nutrition and Food Safety , Beijing 100050, China |
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| Abstract: | This paper reports an estimate of the dietary intake of lead by children and adults from the Jinhu area in South-eastern China. A duplicate diet approach was used to collect food samples in November and December 2007. The lead content was measured by furnace atomic absorption spectrometry. Median lead intakes for different groups were as follows: children: 1.65 µg(kgbw)?1 day?1; and adults: 1.10 µg(kgbw)?1 day?1. No exposure exceeded the provisional tolerable weekly intake (PTWI) of 25 µg(kgbw)?1 week?1 proposed by the World Health Organization (WHO). However, median and maximum exposure for the children group amounted to 60.8% and 97.2% of the PTWI, respectively, which were higher than those for adults, which were 40.5% and 86.4%, respectively. It was concluded that health risks due to dietary lead intake seem to be high in Jinhu. |
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| Keywords: | lead dietary exposure duplicate method child adult provisional tolerable weekly intake (PTWI) |
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