Table 1.
Hazard index (HI), maximum cumulative ratio (MCR), and top-ranked high-priority substances in the twenty-one tap water samples collected at Puerto Rico (PR) a.
| Sample ID | HI | HQmax | MCR | Top 5 High-Priority Substances (HQ from high to low) |
|---|---|---|---|---|
| BN7 | 0.4260 | 0.2056 | 2.0721 | As, Fe, Sr, Cu, Pb |
| BN8 | 0.3498 | 0.2089 | 1.6744 | As, Fe, Sr, Ba, PFOA |
| BN9 | 0.3143 | 0.1748 | 1.7979 | As, Fe, Sr, Cu, Ba |
| BN10 | 0.3164 | 0.1678 | 1.8854 | As, Fe, Sr, Cu, Ba |
| BN11 | 0.5733 | 0.3302 | 1.7361 | As, Fe, Cu, U, Pb |
| BN12 | 0.5954 | 0.4439 | 1.3412 | As, Fe, Sr, Pb, Ba |
| BN13 | 0.7416 | 0.4166 | 1.7804 | As, Fe, U, Pb, Sr |
| BN14-BA | 0.4411 | 0.2480 | 1.7785 | As, Fe, Sr, Pb, Cu |
| BN15-BA | 0.4667 | 0.2458 | 1.8982 | As, Fe, Sr, Cu, Ba |
| BN16-MN | 0.5037 | 0.2367 | 2.1278 | As, Fe, Cu, Sr, Pb |
| PN1-VA | 0.5213 | 0.2770 | 1.8819 | As, Cu, Fe, Sr, Al |
| PN2 | 0.5263 | 0.2754 | 1.9107 | As, Fe, Sr, Ni, Pb |
| PN1-SJ | 0.7110 | 0.4206 | 1.6903 | As, Fe, PFOA, Cu, Sr |
| PN1-CL | 0.8349 | 0.4912 | 1.6998 | As, Cu, Fe, PFOA, Sr |
| PN1-MN | 1.3403 | 0.9914 | 1.3520 | As, Fe, Sr, Pb, Cu |
| PN1-HA | 0.8359 | 0.4801 | 1.7411 | As, Fe, Sr, Cu, Pb |
| PN1-AG | 0.6382 | 0.4054 | 1.5742 | As, Fe, Cu, U, PFOA |
| PS1-MY | 0.4576 | 0.3011 | 1.5200 | As, Fe, Sr, Ba, Zn |
| PS1-GU | 0.8760 | 0.5339 | 1.6407 | As, Fe, Ba, Cu, PFOA |
| PS1-CY | 1.0016 | 0.6448 | 1.5534 | As, Fe, Sr, PFOA, Pb |
| PS1-HU | 0.4242 | 0.3202 | 1.3248 | As, Fe, Pb, Cu, Sr |
a:
HI, HQmax, and MCR values were calculated based on selected human-health benchmarks as indicated in Table S11.