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Wisconsin Lakes Study (II): Statistical Covariance Analysis of Physical and
Chemical Data
Robert Clifford, Jr., John Wilkinson, Nicholas L. Clesceri, Keith A. Booman
and Richard I. Sedlak, Jr.
*
January 1985
2
ABSTRACT
Statistical covariance analysis of data collected by the Soap and
Detergent Association during its Wisconsin Lakes Study assessed the
effectiveness of an interim detergent phosphorus ban. The covariance of
basic limnological parameters between lakes expected to be…
Clean homes. Clean workplaces. Clean schools. We’re all drawn to the clean we can "see." But we also know that just because something looks clean, doesn’t mean it really is clean. Learn about the role disinfecting and sanitizing in preventing the spread of illness-causing germs. You can’t see germs — like Salmonella, E. coli, or Influenza. But "pathogenic," or disease-causing, germs can be alive and thriving on surfaces all around you — at home, at work and at school…
Whether you're just getting started or are experienced at cleaning, we have advice for you. Get all the cleaning basics, room by room guides or get your laundry and dishwashing questions answered. Whether you are doing some spring cleaning or getting ready for the holidays, we can help.
Here are some cleaning guides that may help:
Renters…
People don't typically dispose of cleaning products - they use them up. Empty packages can then be recycled or discarded with other household waste. Unused amounts of cleaning products can generally be safely disposed of down the drain or in the trash. That's not the case with all products found around the home. For those products that do require special handling, such as solvent-based paints, used motor oil and certain pesticides, household hazardous…
Your teeth are clean. But is your bathroom?
Whether your children are learning how to brush their teeth or water splashed and left spots, how do you keep the mirror clean? It’s wonderful that you’ve convinced your children to brush their teeth. But unfortunately, good oral hygiene often comes with a mess – toothpaste globs and schmears on the counter and mirror. Not to worry. With a little bit of elbow grease and the right product, your bathroom can look as good as new. (Until the next…
A new year is a chance for a clean slate and a clean home. Our checklist can help you set a new schedule.
The Cold Water Saves Initiative educates about the benefits of cold water washing, a sustainable action that greatly benefits the environment with little effort on the individual’s part.
What's in it for me?
Save energy.
Save your clothes.
Save the planet.
About 90% of the energy the washing machine uses goes towards heating the water. According to the Sierra Club, every household that switches to cold water washing could eliminate about…
State of: 2007-12-19
SIDS Initial Assessment Repor t
For
SIAM 25
16-19 October 2007, Helsinki
1. Chemical Name: Category of Alkyl sulfates, Alkane sulfonates and α-Olefin
sulfonates
2. CAS Number: See Tables 1-1 and 1-2
3. Sponsor Country: Germany
Contact Point:
BMU (Bundesministerium für Umwelt, Naturschutz und
Reaktorsicherheit)
Contact person:
Dr. Reiner Arndt
Postfach 12 06 29
D-53048 Bonn
4. Shared Partnership with: SDA / Alkylsulfate Consortium
5. Roles/…
Think about all the "public" surfaces you touch on your way to work – railings, door handles, coins and tokens, cash machines, elevator buttons and more. Then, when you get to your destination, washing your hands probably isn't the first thing you do. Instead, you probably grab a cup of coffee and turn on your computer. If you power up before you clean up, all the germs and bacteria that commuted with you are transferred from your hands to your workstation. Ugh! And then, if…
iSTREEM® is a free, web-based GIS-model that estimates the concentration of a chemical that go down the drain and residual levels that subsequently enter the aquatic environment.
This publicly available tool can be used to enhance researchers’ understanding of water quality by estimating chemical concentrations in wastewater treatment plant effluent, surface waters and at many drinking water intakes at…