Author: Benyamin Cohen

  • Dawn dishwashing liquid used to clean animals affected by oil spill

    As one the
    worst oil spills in American history
    continues to wreak havoc in the U.S.
    Gulf Coast, local birds and animals are finding themselves muddied in
    toxic sludge. Surprisingly, volunteers and rescue crews are using a
    common household ingredient to clean up the oil-coated
    wildlife
    — Dawn dishwashing liquid. 
     
    The “tough on grease” dish detergent, commonly found at kitchen
    sinks across America, is used by animal rescue and rehabilitation teams
    to help gently remove oil from feathers, fur, and skin of oil-soaked
    critters. Proctor & Gamble, which owns Dawn, has donated thousands
    of bottles to wildlife conservation programs over the past 30 years,
    cleansing more than 75,000 animals.
     
    The International Bird Rescue Research Center (IBRRC), a California-based
    nonprofit group, treated 1,084 birds in a 2007 San Francisco oil spill.
    According to the group’s website, it recommends cleaning birds with
    Dawn dishwashing liquid because of the cleanser’s ability to remove most oils and its
    effectiveness at low concentrations as well as the fact that it is
    non-irritating to the skin and eyes and easily rinsed from bird
    feathers. 
     
    “We discovered that Dawn is an effective way to clean and
    rehab animals,” explained Jay Holcomb, the executive director of the
    IBRRC. “[It’s] strong enough to remove the oil quickly, but mild on
    their skin and feathers.”
     
    A bird covered in oil tries to preen itself. While that may seem
    like a good thing, it actually leads to the bird ingesting the oil. As
    well, over-eager volunteers often attempt to quickly rub the oil off,
    which can also be more dangerous than helpful.
     
    The trick to removing oil is to force it to be suspended in water,
    so it can be rinsed away. That’s not an easy task, since oil and water
    are notoriously hard to mix, and in Dawn’s case, it achieves this feat
    using a group of chemicals known as “surfactants,” a term that’s short
    for “surface active agent.”
     
    Surfactants reduce the surface tension of
    water and can weaken the barrier that automatically forms between oil
    and water, allowing them to unnaturally mix. Dawn specifically uses
    anionic surfactants — such as alkyl dimethyl amine oxide, found in Dawn
    Power Dissolver — which means the detergent’s molecules don’t convert
    to ions in water. Combined with other ingredients like viscosity
    adjusters, buffering agents, and processing aids, this allows the soap to
    wash away oil without leaving behind a residue.
     
    According to a November 14, 2007, article on Slate, specially
    trained workers clean the birds in a solution of 1 percent dishwashing
    soap and warm water. The water temperature should match the bird’s
    internal temperature of about 103 to 105 degrees Fahrenheit. “Up to 15
    tubs can be used for a single animal; washing a bird the size of a pelican might
    take 300 gallons of water,” wrote Morgan Smith.
     
    As
    part of the Minnie Driver
    -headed Everyday
    Wildlife Champions
    campaign, consumers who use Dawn can help
    rescue/rehab efforts directly. Next time you’re at the store, look for
    special-edition
    bottle of Dawn
    (it’ll have a cute animal image on the bottle). Take
    it home and head to the donation
    activation page
    at the Dawn website.
     
    Once you plug in the special
    code on the bottle, $1 dollar will be donated to wildlife
    groups
    like the Marine Mammal Center and
    the
    International Bird Rescue Research Center
    . Dawn’s goal is
    to raise $500,000.
     
    For those wishing to help scrub the animals in
    person, the National
    Audubon Society
    and the Tri-State Bird Rescue and
    Research
    , among others, are coordinating volunteer efforts.
     
     

    Story written and researched by Benyamin Cohen, Matt Hickman,
    Russell McLendon, and Steve Pollak at Mother Nature Network.
     

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