ArticleRevista cientifica odontologica (Universidad Cientifica del Sur)
Comparison of fluoride concentration and ph levels in drinking water between rainy and dry seasons in Tláhuac, Mexico City.
Article in Revista cientifica odontologica (Universidad Cientifica del Sur). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: To compare seasonal variations in fluoride concentrations and their relationship with pH in drinking water from the Tláhuac borough during rainy and dry periods. Materials and Methods: A descriptive cross-sectional study was conducted to evaluate fluoride concentrations and pH levels in drinking water during the rainy and dry seasons in the Tláhuac borough. Samples were collected from 53 neighborhoods and stored at 4 °C until analysis. Fluoride concentrations were determined using a potentiometric method with an ion-selective electrode, and pH was measured using a digital pH meter. Results: A total of 106 drinking water samples from 53 neighborhoods were analyzed across both seasons. The overall mean fluoride concentration was 0.509 ± 0.154 ppm, and the mean pH was 7.25 ± 0.48. Fluoride concentrations were significantly higher during the dry season than during the rainy season (p ≤ 0.0001). Likewise, pH values showed a significant increase during the dry period (p ≤ 0.0002). Pearson correlation analysis revealed a positive association between higher pH values and increased fluoride concentrations (p ≤ 0.049). Conclusion: Dry-season conditions significantly increased both fluoride concentrations and pH levels in drinking water, highlighting the influence of hydroclimatic and geochemical factors on fluoride mobilization. These findings underscore the need for continuous seasonal monitoring and for considering pH as a key indicator in assessing the risk of fluoride exposure.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.