# Update on Endemic Fluorosis in a Region of Europe (Tenerife, Canary Islands)
## 3 Results and Discussion
### Exposure Assessment and Risk Characterization
\begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Municipality**} & \multicolumn{2}{c}{**EDI (mg/L)**} & \multicolumn{2}{c}{**Contribution UL**} & \multicolumn{2}{c}{**Contribution UL**} & \multicolumn{2}{c}{**Contribution UL**} & \multicolumn{2}{c}{**Contribution UL**} \\  & **1 L** & **1.5 L** & **2 L** & **1 L** & **1.5 L** & **1 L** & **1.5 L** & **1.5 L** & **2 L** & **1.5 L** & **2 L** \\ \hline Santa Cruz de & 2.08 & 3.12 & 4.16 & 138.6 & 207.9 & 83.2 & 124.8 & 62.4 & 83.2 & 44.6 & 59.4 \\ \hline La Laguna & 1.64 & 2.46 & 3.28 & 109.2 & 163.8 & 65.5 & 98.3 & 49.2 & 65.5 & 35.1 & 46.8 \\ \hline El Rosario & 0.89 & 1.33 & 1.77 & 59.1 & 88.6 & 35.5 & 53.2 & 26.6 & 35.5 & 19.0 & 25.3 \\ \hline Tegueste & 4.37 & 6.55 & 8.73 & 291.2 & 436.7 & 174.7 & 262.0 & 131.0 & 174.7 & 93.6 & 124.8 \\ \hline Tacoronte & 0.47 & 0.71 & 0.95 & 31.6 & 47.5 & 19.0 & 28.5 & 14.2 & 19.0 & 10.2 & 13.6 \\ \hline El Sauzal & 1.59 & 2.39 & 3.18 & 106.1 & 159.1 & 63.6 & 95.4 & 47.7 & 63.6 & 34.1 & 45.5 \\ \hline La Matanza de & 4.13 & 6.20 & 8.27 & 275.6 & 413.3 & 165.3 & 248.0 & 124.0 & 165.3 & 88.6 & 118.1 \\ \hline La Victoria de & 3.63 & 5.45 & 7.26 & 242.2 & 363.2 & 145.3 & 217.9 & 109.0 & 145.3 & 77.8 & 103.8 \\ \hline Santa Ursula & 2.00 & 3.00 & 4.00 & 133.4 & 200.1 & 80.0 & 120.1 & 60.0 & 80.0 & 42.9 & 57.2 \\ \hline La Orotava & 1.28 & 1.92 & 2.56 & 85.3 & 128.0 & 51.2 & 76.8 & 38.4 & 51.2 & 27.4 & 36.6 \\ \hline Puerto de la & 1.23 & 1.85 & 2.46 & 82.1 & 123.2 & 49.3 & 73.9 & 37.0 & 49.3 & 26.4 & 35.2 \\ \hline Los Realejos & 1.49 & 2.23 & 2.98 & 99.2 & 148.8 & 59.5 & 89.3 & 44.6 & 59.5 & 31.9 & 42.5 \\ \hline San Juan de la & 2.48 & 3.72 & 4.96 & 165.3 & 248.0 & 99.2 & 148.8 & 74.4 & 99.2 & 53.1 & 70.9 \\ Rambla & 3.32 & 4.98 & 6.64 & 221.3 & 331.9 & 132.8 & 199.1 & 99.6 & 132.8 & 71.1 & 94.8 \\ \hline Icod de los & 5.28 & 7.92 & 10.56 & 352.0 & 528.0 & 211.2 & 316.8 & 158.4 & 211.2 & 113.1 & 150.9 \\ \hline Garachico & 3.75 & 5.63 & 7.51 & 250.2 & 375.3 & 150.1 & 225.2 & 112.6 & 150.1 & 80.4 & 107.2 \\ \hline El Tanoue & 10.61 & 15.92 & 21.22 & 707.4 & 1061.1 & 424.5 & 636.7 & 318.3 & 424.5 & 227.4 & 303.2 \\ \hline Los Silos & 3.29 & 4.94 & 6.58 & 219.4 & 329.0 & 131.6 & 197.4 & 98.7 & 131.6 & 70.5 & 94.0 \\ \hline Buenavista & 2.25 & 3.38 & 4.51 & 150.2 & 225.3 & 90.1 & 135.2 & 67.6 & 90.1 & 48.3 & 64.4 \\ \hline Candelaria & 0.94 & 1.41 & 1.88 & 62.6 & 93.8 & 37.5 & 56.3 & 28.2 & 37.5 & 20.1 & 26.8 \\ \hline Arafo & 0.94 & 1.40 & 1.87 & 62.4 & 93.5 & 37.4 & 56.1 & 28.1 & 37.4 & 20.0 & 26.7 \\ \hline Güimar & 1.20 & 1.79 & 2.39 & 79.7 & 119.6 & 47.8 & 71.7 & 35.9 & 47.8 & 25.6 & 34.2 \\ \hline Fasnia & 2.26 & 3.38 & 4.51 & 150.4 & 225.7 & 90.3 & 135.4 & 67.7 & 90.3 & 48.4 & 64.5 \\ \hline Arico & 1.08 & 1.63 & 2.17 & 72.3 & 108.4 & 43.4 & 65.0 & 32.5 & 43.4 & 23.2 & 31.0 \\ \hline Granadilla de & 1.22 & 1.84 & 2.45 & 81.6 & 122.4 & 49.0 & 73.5 & 36.7 & 49.0 & 26.2 & 35.0 \\ \hline San Miguel de & 1.02 & 1.53 & 2.04 & 68.0 & 102.1 & 40.8 & 61.2 & 30.6 & 40.8 & 21.9 & 29.2 \\ \hline Vilaflor & 2.32 & 3.49 & 4.65 & 154.9 & 232.4 & 92.9 & 139.4 & 69.7 & 92.9 & 49.8 & 66.4 \\ \hline Arona & 0.45 & 0.68 & 0.91 & 30.3 & 45.5 & 18.2 & 27.3 & 13.6 & 18.2 & 9.7 & 13.0 \\ \hline Adeje & 0.37 & 0.55 & 0.73 & 24.5 & 36.7 & 14.7 & 22.0 & 11.0 & 14.7 & 7.9 & 10.5 \\ \hline Guía de Isora & 1.62 & 2.43 & 3.24 & 108.1 & 162.2 & 64.9 & 97.3 & 48.7 & 64.9 & 34.8 & 46.3 \\ \hline Santiago del & 1.16 & 1.74 & 2.32 & 77.3 & 116.0 & 46.4 & 69.6 & 34.8 & 46.4 & 24.9 & 33.1 \\ \hline \end{tabular}
\end{table} 
Table 5: Fluoride EDI and percentage contribution to ULs from public water supply in the different municipalities on the island of Tenerife for the age ranges 1–3 years, 4–8 years, 10–14 years and >18 years. In the group of infants aged 4 to 8 years (consuming 1.5 L/day), the ULs are exceeded in 13 municipalities; Santa Cruz de Tenerife, Tegueste, La Matanza, la Victoria, San Juan de la Rambla, la Guancha, Icod de los Vinos, Garachico, el Tangue, los Silos, Buenavista and Fasnia and Vilaflor.