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Increased lead absorption in children of workers in a lead storage battery plant
Insights
Children of storage battery plant workers show increased lead absorption. This study highlights workplace lead exposure risks extending to families, particularly young children, via contaminated household dust.
Area of Science:
- Environmental Health
- Occupational Health
- Pediatric Toxicology
Background:
- Workplace toxicant exposure poses risks to families.
- Limited research exists on lead exposure in storage battery industry families.
- Children are particularly vulnerable to environmental toxins.
Purpose of the Study:
- To investigate lead absorption in children of workers in the storage battery production industry.
- To compare lead levels in children of exposed workers versus control families.
- To identify potential pathways of lead exposure within the home environment.
Main Methods:
- A comparative study involving 27 children (ages 1-6) of 22 storage battery plant workers and 32 control children.
- Measurement of blood lead and erythrocyte protoporphyrin levels.
- Assessment of household lead contamination in paint, water, and dust.
Main Results:
- Children of workers exhibited significantly higher blood lead levels (p < 0.001).
- Elevated erythrocyte protoporphyrin values were observed in workers' children (p < 0.003).
- Higher lead concentrations in household dust were found in workers' homes (p < 0.001), while paint and water lead levels were similar.
Conclusions:
- Children of storage battery workers demonstrate increased lead absorption.
- Lead is likely transferred from the workplace via worker's clothing, skin, or hair.
- Household dust serves as a significant exposure route for lead in these children.
Abstract:
Exposure to toxic materials originating in the workplace has been recognized in families of workers in several industries. However, to date this problem has not been studied in the storage battery production industry. Twenty-seven one- to six-year-old children of 22 workers at a storage battery plant at high risk of exposure to lead oxide were compared with 32 one- to six-year-old children in 22 neighborhood control families for evidence of increased lead absorption. Workers' children had significantly higher blood lead (p less than 0.001) and erythrocyte protoporphyrin (p less than 0.003) values than control children. Household exposures to lead in paint and water were similar for the two groups, but workers' homes had significantly higher concentrations of lead in dust (p less than 0.001). It is postulated that lead is brought home on the skin, hair and clothing of the workers and that their children are ingesting or inhaling the lead in household dust. This is the first report of increased lead absorption in children of workers in this industry.