Concentration
Concentration
Concentration
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What’s in your drinking water?<br />
National Primary Drinking Water Standards as of 10/03<br />
Contaminant<br />
Parts per<br />
Million (ppm)<br />
Potential Health Effects from<br />
Ingestion of Water<br />
Arsenic 0.010<br />
Skin damage or problems with circulatory<br />
systems, and may have increased<br />
risk of getting cancer<br />
Asbestos (fibers >10<br />
micrometers)<br />
7 (million<br />
fibers per<br />
Liter)<br />
Increased risk of developing benign<br />
intestinal polyps<br />
Carbon<br />
tetrachloride<br />
0.005<br />
Liver problems; increased risk of cancer<br />
Lead 0.015<br />
Infants and children: Delays in physical<br />
or mental development; children could<br />
show slight deficits in attention span<br />
and learning abilities; Adults: Kidney<br />
problems; high blood pressure<br />
Mercury (inorganic) 0.002<br />
Kidney damage<br />
Source: US EPA. Water On Tap: What You Need To Know. Modified 12/14/2004. EPA. 3/13/2008.<br />
http://www.epa.gov/safewater/wot/pdfs/book_waterontap_full.pdf
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