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. 2015 Apr;35(4):358-66.
doi: 10.1002/jat.3023. Epub 2014 Aug 15.

In utero and early childhood exposure to arsenic decreases lung function in children

Rogelio Recio-Vega  1 , Tania Gonzalez-Cortes, Edgar Olivas-Calderon, R Clark Lantz, A Jay Gandolfi, Cesar Gonzalez-De Alba
Affiliations

In utero and early childhood exposure to arsenic decreases lung function in children

Rogelio Recio-Vega et al. J Appl Toxicol. 2015 Apr.

Abstract

The lung is a target organ for adverse health outcomes following exposure to As. Several studies have reported a high prevalence of respiratory symptoms and diseases in subjects highly exposed to As through drinking water; however, most studies to date has been performed in exposed adults, with little information on respiratory effects in children. The objective of the study was to evaluate the association between urinary levels of As and its metabolites with lung function in children exposed in utero and in early childhood to high As levels through drinking water. A total of 358 healthy children were included in our study. Individual exposure was assessed based on urinary concentration of inorganic As. Lung function was assessed by spirometry. Participants were exposed since pregnancy until early childhood to an average water As concentration of 152.13 µg l⁻¹. The mean urinary As level registered in the studied subjects was 141.2 µg l⁻¹ and only 16.7% had a urinary concentration below the national concern level. Forced vital capacity was significantly decreased in the studied population and it was negatively associated with the percentage of inorganic As. More than 57% of the subjects had a restrictive spirometric pattern. The urinary As level was higher in those children with restrictive lung patterns when compared with the levels registered in subjects with normal spirometric patterns. Exposure to As through drinking water during in utero and early life was associated with a decrease in forced vital capacity and with a restrictive spirometric pattern in the children evaluated.

Keywords: Arsenic; children; in utero exposure; lung function; spirometry.

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Figures

Figure 1
Figure 1
Relationship between percent of predicted FEV1 and FVC with total arsenic urinary levels.
See this image and copyright information in PMC

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