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These Might Be In Your Drinking Water

Post 4 of 177

(Popular Science) With nearly limitless beverage options, you might not realize how much variety exists in the seemingly bland realm of tap water. This colorless refreshment can vary widely from city to city, house to house, or even sink to sink. Here are some surprising items that might show up in your water:

Pesticides
Insecticides and herbicides can wash into rivers and lakes and seep into groundwater. The pesticide atrazine has been linked to hormonal imbalances in lab animals but probably isn’t carcinogenic.

Fluoride
As rock erode, they naturally release fluoride into soil, air, and most water sources. Because it can prevent tooth decay by rebuilding enamel, many communities add extra to the drinking supply.

Chlorine
Water-treatment facilities add chlorine as a disinfectant, and it’s safe at low levels. But some disinfectant produce byproducts that have been linked to miscarriage.

Arsenic
Arsenic occurs naturally in rocks and soil, and it’s linked to increased risk of cancer. A water treatment plant should remove the poison, but private well owners must periodically test for it.

Hydrogen Sulfide
Naturally occurring and harmless, this chemical is still a pain the butt. It smells like rotten eggs, stains clothes, and corrodes pipes.

Lead
Old, corroded metal pipelines can deposit this patent neurotoxin into drinking water, as they did in Flint, Michigan. Children who ingest lead can develop permanent learning disabilities.

Algae
Agricultural runoff or warm water can stimulate fish-killing “algal blooms.” But for us, algae in drinking water is just a nuisance, a musty, fishy taste that persists even after the treatment plant.

Pharma
Everything from amoxicillin to Zyrtec makes its way, via your pee, into the rivers and lakes that supply our water. However, pharmaceuticals only contaminate surface water at extremely low levels.

Copper
You’ll notice a medicinal taste or even greenish hair with just 1.3 milligrams of copper per liter of water. But the metal, which leaches from old pipes, is safer for humans at those levels. Just don’t put it in your fish’s tank.

Salts
Salts are a normal part of water, though a strong salty flavor can indicate a waste-water leak. And a high concentration of sodium or magnesium-sulfate salts might have a laxative effect.

This article was written by chris@canyonmedia.net

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