Elevated Hair Mercury Levels Are Associated With Neurodevelopmental Deficits in Children Living Near Artisanal and Small-Scale Gold Mining in Peru.
artisanal and small‐scale gold mining
child development
environmental pollution
mercury
neurocognitive assessment
Journal
GeoHealth
ISSN: 2471-1403
Titre abrégé: Geohealth
Pays: United States
ID NLM: 101706476
Informations de publication
Date de publication:
May 2020
May 2020
Historique:
received:
04
09
2019
revised:
10
02
2020
accepted:
11
03
2020
entrez:
4
6
2020
pubmed:
4
6
2020
medline:
4
6
2020
Statut:
epublish
Résumé
Children living near artisanal and small-scale gold mining (ASGM) are at risk of exposure to mercury, a neurotoxicant. It is not certain whether such exposures are harming development, as they occur in underresourced contexts entwined with other stressors, such as malnutrition and enteric infection. This study sought to investigate the association between hair-mercury levels and visual-motor, cognitive, and physical development among children living near ASGM in the Peruvian Amazon. Total hair-mercury levels were measured in 164 children ages 5-12 living in Madre de Dios, Peru. Primary outcomes included Visual-Motor Integration assessed via the Beery-VMI Developmental Test, General Cognitive Ability assessed via the Batería-III Woodcock-Munoz (Spanish-language Woodcock-Johnson Tests of Cognitive Abilities), and Physical Health assessed via anthropometry/hemoglobin counts. Mean (SD) hair-mercury level was 2.06 (2.43) μg/g. Fifty-four children (32.9%) had hair-mercury levels above the World Health Organization reference level of 2.0 μg/g. After controlling for sex, child age, maternal education, and family socioeconomic status, each one unit increase in log hair-mercury level was associated with a 1.01 unit decrease in Visual-Motor Integration (95%CI: -2.06, 0.05,
Identifiants
pubmed: 32490301
doi: 10.1029/2019GH000222
pii: GH2150
pmc: PMC7240868
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e2019GH000222Subventions
Organisme : NICHD NIH HHS
ID : P2C HD065563
Pays : United States
Informations de copyright
© 2020. The Authors.
Déclaration de conflit d'intérêts
The authors declare no conflicts of interest relevant to this study.
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