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Some metallic toys, low-cost jewelry present health risks for young children

Date:
March 5, 2014
Source:
Polytechnique Montréal
Summary:
We know that babies and young children often put non-food items in their mouths, a behavior that occasionally leads to swallowing of foreign objects. Metallic toys and low-cost jewelry often contain toxic substances such as lead and cadmium. Do these objects present a health risk for young children? "We observed that cadmium and lead contamination, both very toxic metals, are a major problem, especially when it comes to metallic jewelry and toys. Copper, nickel, arsenic and antimony were also present in some samples," explains the author of a new article.

We know that babies and young children often put non-food items in their mouths, a behaviour that occasionally leads to swallowing of foreign objects. Metallic toys and low-cost jewelry often contain toxic substances such as lead and cadmium. Do these objects present a health risk for young children?

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To answer this question, Gérald J. Zagury, a professor in the Department of Civil, Geological and Mining Engineering at Polytechnique Montréal, and Mert Guney, a former doctoral student under Professor Zagury's supervision, examined metals contamination in a selection of 72 toys and jewelry items purchased on the North American market. They then conducted in vitro tests on 24 samples by recreating the biochemical conditions of the gastrointestinal system in the laboratory in order to get an accurate answer.

"We observed that cadmium and lead contamination, both very toxic metals, are a major problem, especially when it comes to metallic jewelry and toys. Copper, nickel, arsenic and antimony were also present in some samples," explains Professor Zagury. In-depth tests showed that the metals can be mobilized into the digestive fluids once contaminated items are ingested.

The researchers also observed that the mobilized quantities of cadmium, lead and nickel from some samples exceeded the safety threshold levels that a child can be exposed to without suffering acute harmful effects (abdominal pain, nausea, vomiting and diarrhea) or variable chronic effects depending on the contaminant. It must be noted that chronic ingestion of lead and cadmium can have irreversible effects on a child's intellectual development.


Story Source:

The above story is based on materials provided by Polytechnique Montréal. Note: Materials may be edited for content and length.


Journal Reference:

  1. Mert Guney, Gerald J. Zagury. Bioaccessibility of As, Cd, Cu, Ni, Pb, and Sb in Toys and Low-Cost Jewelry. Environmental Science & Technology, 2014; 48 (2): 1238 DOI: 10.1021/es4036122

Cite This Page:

Polytechnique Montréal. "Some metallic toys, low-cost jewelry present health risks for young children." ScienceDaily. ScienceDaily, 5 March 2014. <www.sciencedaily.com/releases/2014/03/140305125241.htm>.
Polytechnique Montréal. (2014, March 5). Some metallic toys, low-cost jewelry present health risks for young children. ScienceDaily. Retrieved March 28, 2015 from www.sciencedaily.com/releases/2014/03/140305125241.htm
Polytechnique Montréal. "Some metallic toys, low-cost jewelry present health risks for young children." ScienceDaily. www.sciencedaily.com/releases/2014/03/140305125241.htm (accessed March 28, 2015).

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