Low-cost informational intervention reduced drinking water arsenic exposure in Bangladesh
Raghav R Reddy e outros, 2023 · PNAS Nexus
A low-cost informational intervention providing water testing results and recommendations reduced household drinking water arsenic levels by 64% compared to the control group.
Estimativa · household drinking water arsenic concentration, % reduction
64,0
% reduction
O estudo não informa intervalo.
P < 0.001
- Desenho
- Experimento aleatório. Staggered household-level randomized controlled trial
- População
- Rural households drinking water with arsenic levels above 10 µg/L in Phulsara Union, Chowgacha Upazilla, Jessore District, Bangladesh, 2017–2019
- Amostra
- 332 · households (169 in Group A, 163 in Group B)
Onde está o número
Results > Response to informational intervention; Results, subsection 'Response to informational intervention', fourth paragraph
showed that households in Group A that had received the intervention at Stage I had arsenic levels in their drinking water that were, on average, 64% lower than households in Group B that had not received the intervention (P < 0.001).
Contexto
What changed: Households received educational materials, their well's arsenic test results, and personalized recommendations for nearby safer water sources, with optional free testing for alternate wells. Comparison: Compared to control households whose wells were tested at baseline but did not receive information until Stage II. Limits: The study was conducted in one union in Bangladesh where deep tube wells were geologically unfeasible, and urinary biomarkers or total dietary exposure were not assessed.
Caminho no grafo
- FamíliaInformação e persuasão
- TipoCampanha de informação
- EixoÁgua e saneamento
MAGI só cita evidência deste instrumento
Lugares do estudo
- Bangladesh · País · BD
- Licença
- CC-BY
- Revisão
- Extraído por máquina, não revisadoExtraído por: gemini-3.8-flash, 2026-10-23