Table 2 Characteristics of water samples available for assessment of accuracy of at-home biosensor fluoride tests (n = 57)a.
From: The accuracy and usability of point-of-use fluoride biosensors in rural Kenya
Characteristic | ||
|---|---|---|
Water sample source | ||
Borehole/tube well | 28 (49.1%) | |
Rainwater | 11 (19.3%) | |
Protected dug well | 10 (17.5%) | |
Rainwater combined with borehole water | 5 (8.7%) | |
Surface water | 1 (1.8%) | |
Bottled water | 1 (1.8%) | |
Tap water | 1 (1.8%) | |
Time needed for collection (roundtrip, in min) | ||
Mean (SD) | 5.4 (13.0) | |
Is sample used for cooking or drinking? | ||
Yes | 48 (84.2%) | |
No | 9 (15.8%) | |
Was sample treated?b | ||
Yes | 4 (7.0%) | |
No | 53 (93.0%) | |
Is respondent concerned about fluoride from this source? | ||
Yes | 10 (17.5%) | |
No | 47 (82.4%) | |
Fluoride concentrationc | ||
≥1.5 ppm | 45 (78.9%) | |
<1.5 ppm | 12 (21.1%) | |
