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Does A Brita Filter Remove Arsenic

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doi: x.1016/j.envres.2017.07.018. Epub 2017 Jul xv.

Effectiveness of table meridian water bullpen filters to remove arsenic from drinking water

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  • PMID: 28719869
  • PMCID: PMC5571974
  • DOI: x.1016/j.envres.2017.07.018

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Effectiveness of table peak water pitcher filters to remove arsenic from drinking water

Roxanna Barnaby  et al. Environ Res. 2017 October .

Complimentary PMC article

Abstruse

Arsenic contamination of drinking water is a serious threat to the health of hundreds of millions of people worldwide. In the United states of america ~iii million individuals drink well h2o that contains arsenic levels above the Environmental Protection Agency (EPA) maximum contaminant level (MCL) of 10μg/L. Several technologies are available to remove arsenic from well water including anion substitution, adsorptive media and opposite osmosis. In improver, bottled water is an alternative to drinking well water contaminated with arsenic. However, there are several drawbacks associated with these approaches including relatively high cost and, in the case of bottled h2o, the generation of plastic waste. In this written report, we tested the power of v tabletop water pitcher filters to remove arsenic from drinking water. We report that only 1 tabletop h2o bullpen filter tested, ZeroWater®, reduced the arsenic concentration, both Every bit3+ and As5+, from 1000μg/Fifty to < 3μg/L, well below the MCL. Moreover, the amount of total dissolved solids or competing ions did not affect the ability of the ZeroWater® filter to remove arsenic below the MCL. Thus, the ZeroWater® pitcher filter is a toll constructive and short-term solution to remove arsenic from drinking h2o and its use reduces plastic waste product associated with bottled h2o.

Keywords: Arsenic; Drinking water; Filtration; Water filter; Water quality.

Conflict of interest statement

Conflict OF Interest

The authors declare no competing fiscal interest.

Figures

Figure 1
Effigy one

The ability of five tabletop water pitcher filters, listed by the brand name, to remove arsenic (10 μg/L) from soft water. Control represents ICP-MS measurement of the arsenic solution before it was added to the filters. Iii lots of each filter were tested, 1 L/filter. *P<0.05 versus 10 μg/L. **P<0.001, indicates that the ZeroWater® filter reduced the arsenic concentration in the filtrate to less than 0.05 μg/L. Data presented as the mean ± SEM. Effluent arsenic concentrations were: ZeroWater® (below detection, 100% removed by filtration), PUR® (6.9 ± 0.half-dozen μg/Fifty, 31% removed past filtration), Brita® (7.7 ± 0.eight μg/50, 23% removed by filtration), HDX® (eight.6 ± 0.8 μg/L, 14% removed past filtration), and Dandy Value® (8.half dozen ± 0.6 μg/L, fourteen% removed by filtration).

Figure 2
Effigy 2

The ability of 5 tabletop water pitcher filters, listed by the brand name, to remove arsenic (100 μg/50) from soft water. Command represents ICP-MS measurements of the arsenic solution before information technology was added to the filters. Iii lots of each filter were tested, ane L/filter. *P<0.05 versus 100 μg/L **P<0.001, indicates that the ZeroWater® filter reduced the arsenic concentration in the filtrate to less than 0.05 μg/L. Data presented as the hateful ± SEM. Effluent arsenic concentrations are: ZeroWater® (below detection, 100% removed past filtration), PUR® (65.2 ± 5.v μg/50, 34.8% removed by filtration), Brita® (72.4 ± vii.7 μg/50, 27.6% removed by filtration), HDX® (81.8 ± vi.6 μg/Fifty, 18.2% removed by filtration), and Great Value® (79.ix ± 2.4 μg/L, 20.1% removed by filtration).

Figure 3
Effigy three

The ability of 5 tabletop h2o bullpen filters, listed by the make name, to remove arsenic (1,000 μg/Fifty) from soft h2o. Control represents ICP-MS measurements of the arsenic solution before information technology was added to the filters. Three lots of each filter were tested, 1 L/filter. *P<0.05 versus 1,000 μg/L **P<0.001, indicates that the ZeroWater® filter reduced the arsenic concentration in the filtrate to less than 10 μg/L (mean 2.63 μg/L ± two.06 μg/L). Information presented every bit the mean ± SEM. Effluent arsenic concentrations were: ZeroWater® (2.7 ± ii.0 μg/50, 99.7% removed by filtration), PUR® (737.vii ± 72.4 μg/L, 26.2% removed past filtration), Brita® (808.2 ± 99.2 μg/50, 19.2% removed by filtration), HDX® (913.5 ± 95.0 μg/L, 8.7% removed by filtration), and Great Value® (916.eight ± 56.8 μg/L, eight.3% removed past filtration).

Figure 4
Effigy iv

The ability of the ZeroWater® pitcher filter to remove arsenic from 100 liters of water (measured in i L aliquots) containing 10 μg/Fifty or 100 μg/Fifty arsenic dissolved in either soft water or moderately hard water. Three lots of filters were tested. ICP-MS was used to measure arsenic in a total of one,200 samples. Data are plotted in a stacked bar nautical chart. The Y-axis represents the number of samples plotted as a function of the arsenic concentration measured in the filtered water (Ten axis). Data in each bin is centered on the value (eastward.g., the offset stacked bar is centered on 0, indicating that the arsenic concentration in those samples was between the limit of detection of 0.05 μg/L and <0.125 μg/50. The 2d bar from the left is centered on 0.25 μg/L, indicating that the arsenic concentration in those samples is >0.125 μg/L and <0.375 μg/L. An increment in the hardness of the h2o reduced the ability of the ZeroWater® filter to remove arsenic from the 100 μg/L solution according to a Fisher's verbal test (p < 2.2e-16).

Figure 5
Figure v

The arsenic concentration in the 1,200 filtered samples is presented equally private data points equally a office of the liters filtered (measured in 1 Fifty aliquots). 1,197 of the 1,200 samples tested were <1 μg/L.

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Does A Brita Filter Remove Arsenic,

Source: https://pubmed.ncbi.nlm.nih.gov/28719869/

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