Fluoride
Las Vegas Valley Water District
Fluoride occurs naturally in surface and groundwater and is also added to drinking water by many water systems. Read More.
Fluoride has been promoted as a chemical that reduces dental cavities. Yet it is now well-established that fluoride primarily exerts its protective effects through topical mechanisms, such as sodium fluoride in toothpaste and mouthwash. In contrast, long-term ingestion of fluoride in water increases dental fluorosis, which includes mottling, pitting and weakening of the teeth. EPA's maximum legal limit is set at 4 parts per million (ppm) to prevent skeletal fluorosis, a condition where bones become brittle and more susceptible to fractures, although these effects may occur at lower doses.
Even fluoride levels of 0.7 ppm, the amount of fluoride in drinking water recommended by the U.S. Public Health Service, can result in too much fluoride for bottle-fed babies. EWG recommends that caregivers mix baby formula with fluoride-free water. The National Toxicology Program is investigating the potential for low doses of fluoride to alter thyroid function and childhood brain development.
351
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.390 ppm | 95 | 95 | 0.150 ppm - 0.740 ppm |
| 2015 | 0.633 ppm | 32 | 32 | 0.230 ppm - 0.700 ppm |
| 2016 | 0.622 ppm | 43 | 43 | 0.199 ppm - 0.704 ppm |
| 2017 | 0.379 ppm | 94 | 94 | 0.142 ppm - 0.753 ppm |
| 2018 | 0.681 ppm | 32 | 32 | 0.271 ppm - 0.731 ppm |
| 2019 | 0.463 ppm | 55 | 55 | 0.141 ppm - 0.753 ppm |
ppm = parts per million
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 4 ppm
ppm = parts per million
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-03 | 14010489-001 | 0.480 ppm |
| 2014-02-03 | 14010489-002 | 0.600 ppm |
| 2014-02-03 | 14010489-003 | 0.700 ppm |
| 2014-02-03 | 14010489-004 | 0.700 ppm |
| 2014-02-03 | 14010489-005 | 0.710 ppm |
| 2014-02-03 | 14010489-006 | 0.710 ppm |
| 2014-02-03 | 14010489-007 | 0.710 ppm |
| 2014-02-03 | 14010489-008 | 0.710 ppm |
| 2014-03-11 | 14030130-001 | 0.220 ppm |
| 2014-05-05 | 14050044-001 | 0.710 ppm |
| 2014-05-05 | 14050044-002 | 0.710 ppm |
| 2014-05-05 | 14050044-003 | 0.700 ppm |
| 2014-05-05 | 14050044-004 | 0.700 ppm |
| 2014-05-05 | 14050044-005 | 0.730 ppm |
| 2014-05-05 | 14050044-006 | 0.730 ppm |
| 2014-05-05 | 14050044-007 | 0.710 ppm |
| 2014-05-05 | 14050044-008 | 0.740 ppm |
| 2014-05-12 | 14050125-001 | 0.250 ppm |
| 2014-05-12 | 14050125-002 | 0.320 ppm |
| 2014-05-12 | 14050125-004 | 0.390 ppm |
| 2014-05-12 | 14050129-002 | 0.150 ppm |
| 2014-05-12 | 14050129-001 | 0.170 ppm |
| 2014-05-12 | 14050129-005 | 0.150 ppm |
| 2014-05-12 | 14050129-003 | 0.160 ppm |
| 2014-05-12 | 14050129-004 | 0.200 ppm |
| 2014-05-13 | 14050166-001 | 0.300 ppm |
| 2014-05-13 | 14050166-002 | 0.230 ppm |
| 2014-05-13 | 14050166-011 | 0.400 ppm |
| 2014-05-13 | 14050181-003 | 0.540 ppm |
| 2014-05-13 | 14050181-002 | 0.530 ppm |
| 2014-05-13 | 14050181-011 | 0.160 ppm |
| 2014-05-13 | 14050181-001 | 0.170 ppm |
| 2014-05-13 | 14050181-012 | 0.200 ppm |
| 2014-05-14 | 14050257-001 | 0.250 ppm |
| 2014-05-14 | 14050257-011 | 0.290 ppm |
| 2014-05-14 | 14050257-012 | 0.270 ppm |
| 2014-06-03 | 14050494-001 | 0.300 ppm |
| 2014-06-03 | 14050494-003 | 0.240 ppm |
| 2014-06-03 | 14050494-002 | 0.340 ppm |
| 2014-06-03 | 14050513-001 | 0.250 ppm |
| 2014-06-03 | 14050513-002 | 0.220 ppm |
| 2014-06-03 | 14050513-003 | 0.200 ppm |
| 2014-06-04 | 14060076-001 | 0.240 ppm |
| 2014-06-04 | 14060081-001 | 0.220 ppm |
| 2014-06-04 | 14060081-002 | 0.250 ppm |
| 2014-06-04 | 14060081-003 | 0.210 ppm |
| 2014-06-04 | 14060076-003 | 0.450 ppm |
| 2014-06-04 | 14060076-002 | 0.250 ppm |
| 2014-06-09 | 14060160-001 | 0.220 ppm |
| 2014-06-09 | 14060160-002 | 0.250 ppm |
| 2014-06-09 | 14060160-003 | 0.170 ppm |
| 2014-06-10 | 14060170-002 | 0.310 ppm |
| 2014-06-10 | 14060170-001 | 0.340 ppm |
| 2014-06-10 | 14060165-002 | 0.280 ppm |
| 2014-06-10 | 14060170-003 | 0.180 ppm |
| 2014-06-10 | 14060165-003 | 0.200 ppm |
| 2014-06-10 | 14060165-001 | 0.180 ppm |
| 2014-06-11 | 14060242-003 | 0.200 ppm |
| 2014-06-11 | 14060242-002 | 0.220 ppm |
| 2014-06-11 | 14060242-001 | 0.220 ppm |
| 2014-06-11 | 14060230-003 | 0.220 ppm |
| 2014-06-11 | 14060230-002 | 0.220 ppm |
| 2014-06-11 | 14060230-001 | 0.310 ppm |
| 2014-06-16 | 14060276-002 | 0.230 ppm |
| 2014-06-16 | 14060276-001 | 0.230 ppm |
| 2014-06-16 | 14060276-003 | 0.230 ppm |
| 2014-06-16 | 14060271-003 | 0.190 ppm |
| 2014-06-16 | 14060271-002 | 0.230 ppm |
| 2014-06-16 | 14060271-001 | 0.270 ppm |
| 2014-06-17 | 14060388-002 | 0.260 ppm |
| 2014-06-17 | 14060388-001 | 0.240 ppm |
| 2014-06-17 | 14060393-003 | 0.240 ppm |
| 2014-06-17 | 14060393-001 | 0.190 ppm |
| 2014-06-17 | 14060393-002 | 0.210 ppm |
| 2014-06-17 | 14060388-003 | 0.260 ppm |
| 2014-06-18 | 14060398-002 | 0.250 ppm |
| 2014-06-18 | 14060398-001 | 0.200 ppm |
| 2014-06-25 | 14060526-001 | 0.370 ppm |
| 2014-08-11 | 14080117-001 | 0.370 ppm |
| 2014-08-11 | 14080117-002 | 0.670 ppm |
| 2014-08-11 | 14080117-003 | 0.670 ppm |
| 2014-08-11 | 14080117-004 | 0.680 ppm |
| 2014-08-11 | 14080117-005 | 0.680 ppm |
| 2014-08-11 | 14080117-006 | 0.260 ppm |
| 2014-08-11 | 14080117-007 | 0.680 ppm |
| 2014-08-11 | 14080117-008 | 0.680 ppm |
| 2014-09-23 | 14090415-001 | 0.180 ppm |
| 2014-11-04 | 14110014-001 | 0.570 ppm |
| 2014-11-04 | 14110014-002 | 0.690 ppm |
| 2014-11-04 | 14110014-003 | 0.700 ppm |
| 2014-11-04 | 14110014-004 | 0.690 ppm |
| 2014-11-04 | 14110014-005 | 0.690 ppm |
| 2014-11-04 | 14110014-006 | 0.700 ppm |
| 2014-11-04 | 14110014-007 | 0.710 ppm |
| 2014-11-04 | 14110014-008 | 0.700 ppm |
| 2015-02-02 | 15010444-001 | 0.490 ppm |
| 2015-02-02 | 15010444-002 | 0.630 ppm |
| 2015-02-02 | 15010444-003 | 0.650 ppm |
| 2015-02-02 | 15010444-004 | 0.650 ppm |
| 2015-02-02 | 15010444-005 | 0.700 ppm |
| 2015-02-02 | 15010444-006 | 0.700 ppm |
| 2015-02-05 | 15020058-007 | 0.660 ppm |
| 2015-02-05 | 15020058-008 | 0.700 ppm |
| 2015-05-07 | 15050054-001 | 0.690 ppm |
| 2015-05-07 | 15050054-002 | 0.670 ppm |
| 2015-05-07 | 15050054-003 | 0.690 ppm |
| 2015-05-07 | 15050054-004 | 0.680 ppm |
| 2015-05-07 | 15050054-005 | 0.690 ppm |
| 2015-05-07 | 15050054-006 | 0.680 ppm |
| 2015-05-07 | 15050054-007 | 0.690 ppm |
| 2015-05-07 | 15050054-008 | 0.680 ppm |
| 2015-08-03 | 15070648-001 | 0.430 ppm |
| 2015-08-03 | 15070648-002 | 0.660 ppm |
| 2015-08-03 | 15070648-003 | 0.670 ppm |
| 2015-08-03 | 15070648-004 | 0.670 ppm |
| 2015-08-03 | 15070648-005 | 0.660 ppm |
| 2015-08-03 | 15070648-006 | 0.230 ppm |
| 2015-08-03 | 15070648-007 | 0.670 ppm |
| 2015-08-03 | 15070648-008 | 0.660 ppm |
| 2015-11-16 | 15110230-001 | 0.480 ppm |
| 2015-11-16 | 15110230-002 | 0.630 ppm |
| 2015-11-16 | 15110230-003 | 0.640 ppm |
| 2015-11-16 | 15110230-004 | 0.640 ppm |
| 2015-11-16 | 15110230-005 | 0.660 ppm |
| 2015-11-16 | 15110230-006 | 0.640 ppm |
| 2015-11-16 | 15110230-007 | 0.630 ppm |
| 2015-11-16 | 15110230-008 | 0.640 ppm |
| 2016-02-08 | 16020082-001 | 0.670 ppm |
| 2016-02-08 | 16020082-002 | 0.640 ppm |
| 2016-02-08 | 16020082-003 | 0.630 ppm |
| 2016-02-08 | 16020082-004 | 0.620 ppm |
| 2016-02-08 | 16020082-005 | 0.660 ppm |
| 2016-02-08 | 16020082-006 | 0.650 ppm |
| 2016-02-08 | 16020082-007 | 0.620 ppm |
| 2016-02-08 | 16020082-008 | 0.660 ppm |
| 2016-05-09 | S1601630005 | 0.199 ppm |
| 2016-05-25 | 16050274-001 | 0.480 ppm |
| 2016-05-25 | 16050274-002 | 0.670 ppm |
| 2016-05-25 | 16050274-003 | 0.670 ppm |
| 2016-05-25 | 16050274-004 | 0.680 ppm |
| 2016-05-25 | 16050274-005 | 0.660 ppm |
| 2016-05-25 | 16050274-006 | 0.660 ppm |
| 2016-05-25 | 16050274-007 | 0.680 ppm |
| 2016-05-25 | 16050274-008 | 0.660 ppm |
| 2016-05-31 | S1601677001 | 0.452 ppm |
| 2016-09-01 | S1602460001 | 0.302 ppm |
| 2016-09-01 | S1602460002 | 0.645 ppm |
| 2016-09-01 | S1602460003 | 0.676 ppm |
| 2016-09-01 | S1602460004 | 0.683 ppm |
| 2016-09-01 | S1602460005 | 0.666 ppm |
| 2016-09-01 | S1602460006 | 0.238 ppm |
| 2016-09-01 | S1602460007 | 0.679 ppm |
| 2016-09-01 | S1602460008 | 0.666 ppm |
| 2016-10-06 | S104609005 | 0.687 ppm |
| 2016-10-06 | S1604609001 | 0.624 ppm |
| 2016-10-06 | S1604609002 | 0.671 ppm |
| 2016-10-06 | S1604609003 | 0.681 ppm |
| 2016-10-06 | S1604609004 | 0.681 ppm |
| 2016-10-06 | S1604609005 | 0.687 ppm |
| 2016-10-06 | S1604609006 | 0.296 ppm |
| 2016-10-06 | S1604609007 | 0.681 ppm |
| 2016-10-06 | S1604609008 | 0.697 ppm |
| 2016-11-02 | S1605415001 | 0.686 ppm |
| 2016-11-02 | S1605415002 | 0.683 ppm |
| 2016-11-02 | S1605415003 | 0.679 ppm |
| 2016-11-02 | S1605415004 | 0.679 ppm |
| 2016-11-02 | S1605415005 | 0.704 ppm |
| 2016-11-02 | S1605415006 | 0.704 ppm |
| 2016-11-02 | S1605415007 | 0.686 ppm |
| 2016-11-02 | S1605415008 | 0.704 ppm |
| 2017-02-01 | S1606056001 | 0.633 ppm |
| 2017-02-01 | S1606056002 | 0.679 ppm |
| 2017-02-01 | S1606056003 | 0.692 ppm |
| 2017-02-01 | S1606056004 | 0.692 ppm |
| 2017-02-01 | S1606056005 | 0.679 ppm |
| 2017-02-01 | S1606056006 | 0.633 ppm |
| 2017-02-01 | S1606056007 | 0.702 ppm |
| 2017-02-01 | S1606056008 | 0.682 ppm |
| 2017-05-01 | S1702783001 | 0.292 ppm |
| 2017-05-03 | S1700924001 | 0.689 ppm |
| 2017-05-03 | S1700924002 | 0.683 ppm |
| 2017-05-03 | S1700924003 | 0.673 ppm |
| 2017-05-03 | S1700924004 | 0.683 ppm |
| 2017-05-03 | S1700924005 | 0.686 ppm |
| 2017-05-03 | S1700924006 | 0.630 ppm |
| 2017-05-03 | S1700924007 | 0.679 ppm |
| 2017-05-03 | S1700924008 | 0.696 ppm |
| 2017-05-08 | S1703312001 | 0.245 ppm |
| 2017-05-08 | S1703196002 | 0.329 ppm |
| 2017-05-08 | S1703196004 | 0.517 ppm |
| 2017-05-08 | S1703196003 | 0.207 ppm |
| 2017-05-08 | S1703195002 | 0.150 ppm |
| 2017-05-08 | S1703195004 | 0.183 ppm |
| 2017-05-08 | S1703195003 | 0.158 ppm |
| 2017-05-08 | S1703195005 | 0.159 ppm |
| 2017-05-08 | S1703195001 | 0.246 ppm |
| 2017-05-09 | S1703308001 | 0.309 ppm |
| 2017-05-09 | S1703308003 | 0.231 ppm |
| 2017-05-09 | S1703308002 | 0.552 ppm |
| 2017-05-09 | S1703183004 | 0.280 ppm |
| 2017-05-09 | S1703183003 | 0.217 ppm |
| 2017-05-09 | S1703308004 | 0.519 ppm |
| 2017-05-09 | S1703183001 | 0.304 ppm |
| 2017-05-09 | S1703183002 | 0.190 ppm |
| 2017-05-10 | S1703184005 | 0.419 ppm |
| 2017-05-10 | S1703184003 | 0.293 ppm |
| 2017-05-15 | S1703185003 | 0.197 ppm |
| 2017-05-15 | S1703185001 | 0.148 ppm |
| 2017-05-15 | S1703185002 | 0.167 ppm |
| 2017-06-05 | S1703270003 | 0.254 ppm |
| 2017-06-05 | S1703270001 | 0.204 ppm |
| 2017-06-05 | S1703270002 | 0.206 ppm |
| 2017-06-05 | S1703431002 | 0.190 ppm |
| 2017-06-05 | S1703431001 | 0.201 ppm |
| 2017-06-05 | S1703431003 | 0.302 ppm |
| 2017-06-05 | S1703586001 | 0.222 ppm |
| 2017-06-05 | S1703586003 | 0.183 ppm |
| 2017-06-05 | S1703586002 | 0.147 ppm |
| 2017-06-06 | S1703808001 | 0.181 ppm |
| 2017-06-06 | S1703808002 | 0.173 ppm |
| 2017-06-06 | S1703808003 | 0.174 ppm |
| 2017-06-06 | S1703735001 | 0.145 ppm |
| 2017-06-06 | S1703735003 | 0.142 ppm |
| 2017-06-06 | S1703735002 | 0.204 ppm |
| 2017-06-07 | S1703809001 | 0.193 ppm |
| 2017-06-07 | S1704004001 | 0.230 ppm |
| 2017-06-07 | S1704004002 | 0.197 ppm |
| 2017-06-07 | S1704003001 | 0.190 ppm |
| 2017-06-12 | S1703811001 | 0.215 ppm |
| 2017-06-12 | S1703813002 | 0.204 ppm |
| 2017-06-12 | S1703811002 | 0.205 ppm |
| 2017-06-12 | S1703812001 | 0.191 ppm |
| 2017-06-12 | S1703810002 | 0.197 ppm |
| 2017-06-12 | S1703810003 | 0.203 ppm |
| 2017-06-12 | S1703813001 | 0.202 ppm |
| 2017-06-12 | S1703810001 | 0.191 ppm |
| 2017-06-12 | S1703812002 | 0.214 ppm |
| 2017-06-14 | S1703814003 | 0.177 ppm |
| 2017-06-14 | S1703814001 | 0.161 ppm |
| 2017-06-14 | S1703814002 | 0.177 ppm |
| 2017-06-14 | S1703815002 | 0.173 ppm |
| 2017-06-14 | S1703815004 | 0.170 ppm |
| 2017-06-14 | S1703815003 | 0.211 ppm |
| 2017-06-27 | S1703816001 | 0.213 ppm |
| 2017-07-19 | S1704278001 | 0.365 ppm |
| 2017-07-24 | S1704294001 | 0.181 ppm |
| 2017-08-14 | S1703085001 | 0.305 ppm |
| 2017-08-14 | S1703085002 | 0.696 ppm |
| 2017-08-14 | S1703085003 | 0.703 ppm |
| 2017-08-14 | S1703085004 | 0.706 ppm |
| 2017-08-14 | S1703085005 | 0.722 ppm |
| 2017-08-14 | S1703085006 | 0.240 ppm |
| 2017-08-14 | S1703085007 | 0.693 ppm |
| 2017-08-14 | S1703085008 | 0.713 ppm |
| 2017-08-22 | S1705156001 | 0.255 ppm |
| 2017-08-29 | S1705295001 | 0.183 ppm |
| 2017-11-07 | S1705758001 | 0.658 ppm |
| 2017-11-07 | S1705758002 | 0.724 ppm |
| 2017-11-07 | S1705758003 | 0.746 ppm |
| 2017-11-07 | S1705758004 | 0.735 ppm |
| 2017-11-07 | S1705758005 | 0.739 ppm |
| 2017-11-07 | S1705758006 | 0.753 ppm |
| 2017-11-07 | S1705758007 | 0.750 ppm |
| 2017-11-07 | S1705758008 | 0.753 ppm |
| 2018-02-14 | S1707948001 | 0.731 ppm |
| 2018-02-14 | S1707948002 | 0.728 ppm |
| 2018-02-14 | S1707948003 | 0.728 ppm |
| 2018-02-14 | S1707948004 | 0.713 ppm |
| 2018-02-14 | S1707948005 | 0.728 ppm |
| 2018-02-14 | S1707948006 | 0.724 ppm |
| 2018-02-14 | S1707948007 | 0.731 ppm |
| 2018-02-14 | S1707948008 | 0.731 ppm |
| 2018-05-09 | S1801296001 | 0.668 ppm |
| 2018-05-09 | S1801296002 | 0.684 ppm |
| 2018-05-09 | S1801296003 | 0.687 ppm |
| 2018-05-09 | S1801296004 | 0.687 ppm |
| 2018-05-09 | S1801296005 | 0.703 ppm |
| 2018-05-09 | S1801296006 | 0.701 ppm |
| 2018-05-09 | S1801296007 | 0.681 ppm |
| 2018-05-09 | S1801296008 | 0.701 ppm |
| 2018-08-15 | S1803230001 | 0.348 ppm |
| 2018-08-15 | S1803230002 | 0.705 ppm |
| 2018-08-15 | S1803230003 | 0.705 ppm |
| 2018-08-15 | S1803230004 | 0.709 ppm |
| 2018-08-15 | S1803230005 | 0.719 ppm |
| 2018-08-15 | S1803230006 | 0.271 ppm |
| 2018-08-15 | S1803230007 | 0.686 ppm |
| 2018-08-15 | S1803230008 | 0.715 ppm |
| 2018-11-19 | S1805664001 | 0.670 ppm |
| 2018-11-19 | S1805664002 | 0.702 ppm |
| 2018-11-19 | S1805664003 | 0.684 ppm |
| 2018-11-19 | S1805664004 | 0.698 ppm |
| 2018-11-19 | S1805664005 | 0.723 ppm |
| 2018-11-19 | S1805664006 | 0.723 ppm |
| 2018-11-19 | S1805664007 | 0.698 ppm |
| 2018-11-19 | S1805664008 | 0.723 ppm |
| 2019-02-11 | S1807964001 | 0.739 ppm |
| 2019-02-11 | S1807964002 | 0.746 ppm |
| 2019-02-11 | S1807964003 | 0.746 ppm |
| 2019-02-11 | S1807964004 | 0.753 ppm |
| 2019-02-11 | S1807964005 | 0.739 ppm |
| 2019-02-11 | S1807964006 | 0.703 ppm |
| 2019-02-11 | S1807964007 | 0.323 ppm |
| 2019-02-11 | S1807964008 | 0.735 ppm |
| 2019-04-23 | S1906235001 | 0.206 ppm |
| 2019-04-23 | S1906235002 | 0.176 ppm |
| 2019-04-23 | S1906235003 | 0.170 ppm |
| 2019-04-23 | S1906235004 | 0.174 ppm |
| 2019-04-23 | S1906235005 | 0.203 ppm |
| 2019-04-23 | S1906235006 | 0.157 ppm |
| 2019-04-23 | S1906235007 | 0.141 ppm |
| 2019-04-23 | S1906235008 | 0.144 ppm |
| 2019-04-23 | S1906235009 | 0.156 ppm |
| 2019-04-23 | S1906236001 | 0.183 ppm |
| 2019-04-23 | S1906236002 | 0.179 ppm |
| 2019-04-23 | S1906236003 | 0.181 ppm |
| 2019-04-23 | S1906236004 | 0.187 ppm |
| 2019-04-23 | S1906236005 | 0.194 ppm |
| 2019-04-23 | S1906236006 | 0.178 ppm |
| 2019-04-23 | S1906236007 | 0.166 ppm |
| 2019-04-23 | S1906236008 | 0.178 ppm |
| 2019-04-23 | S1906236009 | 0.215 ppm |
| 2019-04-23 | S1906236010 | 0.200 ppm |
| 2019-04-23 | S1906236011 | 0.193 ppm |
| 2019-04-30 | S1907076001 | 0.196 ppm |
| 2019-05-15 | S1902185001 | 0.611 ppm |
| 2019-05-15 | S1902185002 | 0.605 ppm |
| 2019-05-15 | S1902185003 | 0.675 ppm |
| 2019-05-15 | S1902185004 | 0.675 ppm |
| 2019-05-15 | S1902185005 | 0.672 ppm |
| 2019-05-15 | S1902185006 | 0.271 ppm |
| 2019-05-15 | S1902185007 | 0.675 ppm |
| 2019-05-15 | S1902185008 | 0.675 ppm |
| 2019-07-02 | S1916252001 | 0.162 ppm |
| 2019-08-08 | S1921560001 | 0.664 ppm |
| 2019-08-08 | S1921560002 | 0.667 ppm |
| 2019-08-08 | S1921560003 | 0.706 ppm |
| 2019-08-08 | S1921560004 | 0.723 ppm |
| 2019-08-08 | S1921560005 | 0.720 ppm |
| 2019-08-08 | S1921560006 | 0.273 ppm |
| 2019-08-08 | S1921560007 | 0.706 ppm |
| 2019-08-08 | S1921560008 | 0.717 ppm |
| 2019-08-20 | S1923827001 | 0.207 ppm |
| 2019-11-27 | S1961094001 | 0.732 ppm |
| 2019-11-27 | S1961094002 | 0.714 ppm |
| 2019-11-27 | S1961094003 | 0.732 ppm |
| 2019-11-27 | S1961094004 | 0.726 ppm |
| 2019-11-27 | S1961096001 | 0.720 ppm |
| 2019-11-27 | S1961096002 | 0.723 ppm |
| 2019-11-27 | S1961096003 | 0.717 ppm |
| 2019-11-27 | S1961096004 | 0.726 ppm |