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LETTER TO THE EDITOR
Year : 2017  |  Volume : 6  |  Issue : 2  |  Page : 90-91

Estimation of cancer risk due to exposure to lead contamination in Joss paper


1 Sanitation 1 Medical Center, Bangkok, Thailand
2 Department of Tropical Medicine, Hainan Medical University, Haikou, Hainan, China

Date of Web Publication22-Jun-2017

Correspondence Address:
Beuy Joob
Sanitation 1 Medical Center, Bangkok
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2278-330X.208857

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How to cite this article:
Joob B, Wiwanitkit V. Estimation of cancer risk due to exposure to lead contamination in Joss paper. South Asian J Cancer 2017;6:90-1

How to cite this URL:
Joob B, Wiwanitkit V. Estimation of cancer risk due to exposure to lead contamination in Joss paper. South Asian J Cancer [serial online] 2017 [cited 2017 Aug 24];6:90-1. Available from: http://journal.sajc.org/text.asp?2017/6/2/90/208857

Dear Editor,

Contamination of heavy metal is a big concern in public health. Contact with heavy metal might imply the cancer risk. Lead is the heavy metal that is widely mentioned for its contamination and relationship to cancer. In the recent publication, the risk due to contact of lead contaminated in Ayurveda product is reported.[1] In real life, the contamination of lead can be seen in several objects. A forgotten object is Joss paper, which is widely used in Chinese communities around the world. The Joss paper is regularly used in religious practice by the Chinese and exposure to the lead on the Joss paper can be expected. According to a recent report, the level of lead contamination in each Joss paper is equal to 0.58–320.81 μg/g (ppm).[2] Here, the authors assess cancer risk from contact with lead contaminated Joss paper using the cancer risk assessment technique as used in the previous publication.[1] In the present model, individual lifetime cancer risk is equal to “concentration of contaminated lead in Joss paper × lifetime unit risk factor.” As noted in the previous paper “unit risk factor of lead is equal to 1.2 ×10−5 m 3/μg” and “lead density equal to 11,340 kg/m3.”[1] According to this basic information, the derived individual lifetime cancer risk is equal to 6882.93–43655.82. This rate is considerable high comparing to the previously estimated rate in case of lead contaminated Ayurveda product.[1] Since Joss paper is widely used around the world, the cancer risk due to this ritual object is of concern.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

 
  References Top

1.
Joob B, Wiwanitkit V. Estimation of cancer risk due to exposure to lead contamination in Thai Ayurveda products. Indian J Cancer 2015;52:550.  Back to cited text no. 1
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2.
Chew NK, Lee MK, Mohd MA, Tan CT. Parkinson's disease in occupational exposure to Joss paper, a report of two cases. Neurol J Southeast Asia 2003;8:117-20.  Back to cited text no. 2
    




 

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