Category Archives: Contaminants

Food Allergies and Pesticides- Is There a Link?

By Megan Vick

You may have noticed lately that the number of people, especially children, with food allergies is increasing. With common allergens such as wheat, soy, peanuts, tree nuts, eggs, milk (and milk products), fish, and shellfish, you may wonder why so many people have allergies.


On December 3, 2012, the results of a study were released which tested the hypothesis that chemicals, specifically pesticides, in our drinking water may increase food allergies. The study did not find the two were linked. However, this same study did find (to no surprise) that both environmental pollution and food allergies are increasing in the USA. Read More

4396710 and 4396841 – Which Filter Do I Need?

By Megan Vick


Multiple times a day, our customer service team gets phone
calls regarding the PUR refrigerator water filter for Whirlpool/Kenmore. PUR
makes the filter for both Whirlpool and Kenmore brands and it does have many
product numbers. Both 4396710 and 4396841 will fit the same in your fridge, but
the performance may differ. Here is a quick way to help determine which filter
is right for you!



This is the “Advanced” filter for your model refrigerator.
This filter is slightly slower than its “Deluxe” counterpart, but it removes
more contaminants. It is also NSF tested and certified to meet or exceed NSF
standards 42 and 53. Read More

Friendly Fracking? Companies Embrace Solar Energy

By Megan Vick

In an odd twist of fate, many fracking companies are looking
to the clean energy sector to provide solar energy options for hydraulic
fracturing. Halliburton Co (yes, the same people responsible for the BP oil
spill in 2010) has a machine which relies on solar generated electricity in
combination with Earth’s gravity to shoot sand into underground rock. This rock
contains the ever-precious natural gas or oil. This little machine is called
the SandCastle.

Hydraulic fracturing plant


Fracking has generated tons of controversy because of the
threat to the environment. Specifically, fracking has come under fire for using
“proprietary chemicals” used to release the natural gas. Read More

What a Wonderful, Watery World

This article is
adapted from the original.

By Megan


Similar to Howard Wolowitz from TV’s The Big Bang Theory, former NASA employee and environmental
engineer, John Feighery, designed the bathroom for the International Space
Station. Feighery and his team needed to focus on efficiency, waste management,
and air and water quality to have a successful system aboard the ISS.

Simon Helberg as Howard Wolowitz

In 2003, Feighery changed his focus to helping the global
water crisis. When he spoke to AlertNet, he said, “I’d been working on supplying
clean water to three or four people in space, and meanwhile there are a billion
here on Earth that don’t have it.” This profound change in thought led him to
work in Bangladesh with a group from the US Health and Human Services Department testing
well water. Read More

Rocket Fuel in My Water?!

By Megan Vick

That’s right.  You may have heard about it on the news or seen it online- 26 states have found perchlorate (rocket fuel) in their public water supply. Now the EPA is investigating setting a standard for allowable levels of this chemical in the water supply.

What is Perchlorate?
Perchlorate is derived from perchloric acid and can be both natural and artificial. The most common perchlorate is ammonium perchlorate which is used in pyrotechnics, as well as a component of rocket fuel. Perchlorate can cause numerous health problems both in children and adults.

Rocket Launch

Is Perchlorate in Other Things? Read More

The Safe Drinking Water Act-What It Means for You

Tap waterLet's be honest-most of us give little thought to the source of our tap water, how safe it is, and who regulates it. We simply rely on the federal government and various state and local agencies to protect our drinking water. We trust that our water is safe and clean.

Thanks to the Safe Drinking Water Act (SDWA), we here in the US have some of the safest tap water in the world. Originally passed by Congress in 1974, it protects public health by regulating the nation's public drinking water supply.  In fact, the SDWA is the main federal law that ensures the quality of Americans' drinking water. Read More

My Water Smells Like… (An Exercise in Ick)

Fill in the blank: my water smells like_____________. Hopefully you answered "nothing," or maybe "chlorine." 

A quick Google search yielded some far more interesting results:

(Poop? Really?)

Unfortunately, most contaminantsgive no off-putting scent or taste to your water. (Wouldn't it be more convenient if we could taste lead in our water? Then we'd know we had a problem!) If you do smell something in your water, though, you might have a problem.

So what does your water smell like? If you answered:

Rotten eggs or sewage. You likely have sulfur in your water.  The presence of sulphur, or rather hydrogen sulfide, in even the smallest amount can make your water smell like sewage and can negatively affect taste. Read More

How Clean Is the Water from My Tap?

Glass of water
While the US has one some of the safest drinking water in the world, drinking water sources are still subject to contamination. Bacteria, industrial pollutants, disinfection byproducts, and even pharmaceuticals can all find their way into the public water supply and ultimately, into the water that flows from your tap. In fact, US water utilities have identified over 300 pollutants in the tap water Americans drink! More than half of these chemicals aren't regulated by the government and can legally be present in any amount. And the chemicals the EPA does regulate? They can still end up in your water supply. In 2010 (the latest data available), 10% of all community water systems sold water to consumers that violated at least one EPA standard for safe drinking water. Read More

What’s in Your Water? Common Contaminants in US Drinking Water

Hands in clear waterPure water is colorless, tasteless, and odorless. But because water becomes contaminated by every substance it comes into contact with, by the time it reaches your tap it’s no longer pure H20.

While the US has one of the safest public drinking water supplies in the world, drinking water sources are still subject to contamination. There are many sources of water contamination, including :

Chlorine and Chlorination By-Products
Chlorine is a type of disinfectant, not a contaminant, that’s added to drinking water to control microbes. In addition to the objectionable taste and odor that can be caused by chlorine, chlorination by-products, such as total trihalomethanes (TTHMs), can form in the water. Read More

How Clean Is the Water in My Community?

drinking water
While the US has one of the safest public drinking water supplies in the world, testing by water utilities over the last eight years has identified over 300 pollutants in the tap water Americans drink. More than half of these chemicals aren't subject to government health and safety recommendations and can legally be present in any amount. 

So how clean is the tap water where you live? Well, it depends. Water quality can vary from state to state-and even from city to city. Austin, Texas, for instance, has some of the safest water in the country, but Houston ranks 95th out of 100 for pollutants in its water supply. Read More