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In the News…
Public Health and Drinking Water News Briefs
| December 5,
2008 |
| Chlorination Equipment Helps Provide Safe Water to Third-World Countries |
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International Action, a non-profit group based in Washington, D.C.,
has helped provide safe water to more than 400,000 poor Haitians
with the help of chlorination equipment from Norwalk Wastewater
Equipment Company (Norweco), a manufacturer of water and wastewater
treatment products, systems and chemicals.
The company worked for fifteen years to adapt its equipment for
use in small drinking water systems after learning of the extreme
need of people in poor countries. Norweco's chlorinator is now used
in about 20 countries.
Experts say the largest killer of children in all developing countries
is waterborne disease such as cholera, typhoid, hepatitis and chronic
diarrhea which lead to the premature and avoidable deaths of 2.6
million children each year. For $265, International Action can install
a water chlorinator that lasts a generation and will help provide
up to 10,000 people with safe drinking water. They recently joined
forces with a Haitian organization to install 100 cholinators in
23 of the poorest neighborhoods in Port-au-Prince resulting in 400,000
residents receiving clean, safe water for the first time.
The unique thing about International Action's project is the chlorine
lasts in the water for days. Treated water will even overcome bacteria
in containers used to carry the water. International Action is proof
that chlorine is becoming a major force for public health in Haiti.
To learn more about International Action's water projects, please visit:
International Action
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| CDC Updates Guidelines for Disinfection and Sterilization |
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The Center for Disease Control and Prevention (CDC) recently released
The Guideline for Disinfection and Sterilization in Healthcare Facilities,
2008. The guidance presents evidence-based recommendations
on the preferred methods for cleaning, disinfection and sterilization
of patient-care medical devices and for cleaning and disinfecting
the healthcare environment.
The guidelines include recommendations designed to reduce rates
of healthcare-associated infections through appropriate use of both
disinfection and sterilization. Specific recommendations address
a range of topics, including:
- cleaning of patient care devices
- indications for sterilization
- high-level disinfection
- low-level disinfection
- selection and use of disinfectants for noncritical patient-care
devices
- cleaning and disinfecting environmental surfaces in healthcare
facilities
This guidance presents a pragmatic approach to the selection and proper use
of disinfection and sterilization processes, which is based on well-designed
studies assessing the efficacy (through laboratory investigations)
and effectiveness (through clinical studies) of disinfection and
sterilization procedures.
A range of disinfectants for patient-care equipment is covered
in the guidance, and notes that the choice of disinfectant, the
appropriate concentration, and exposure times are based on the risk
for infection associated with use of the equipment and as well as
other factors.
To read more, please visit:
The Center for Disease Control and Prevention
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| Researchers Discover How Bleach Disinfects |
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Bleach is commonly used as a disinfectant, but until now, researchers
have been unable to explain just how bleach works to kill bacteria.
Writing in the journal Cell, researchers describe, for the
first time, the action of ordinary bleach on proteins in bacteria.
First, the proteins unfold in a manner similar to proteins undergoing
heat-related stress, then clump together in a manner similar to
that of the proteins in a cooking hard-boiled egg.
These findings are discussed in a podcast, sponsored by Dow Chemical,
which features an interview with Dr. Ursula Jakob, Associate Professor,
Department of Molecular, Cellular and Developmental Biology University
of Michigan, Ann Arbor, who made these discoveries which researching
a related topic.
To listen to this podcast, please visit:
NPR's
Science Friday
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| Environmentalists Ponder Obama Administration's Priorities for Water Quality Rules |
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A group of academics, environmentalists, and lawmakers claim a
potent combination of Supreme Court decisions, Bush administration
regulatory actions, and congressional inaction-coupled with recent
droughts and the specter of more pronounced problems from climate
change-ha helped create crises of both water quality and water availability
over the past decade.
These groups are hopeful that the new administration and the next
Congress will address the country's water problems, including its
dwindling supplies, inadequate environmental protections, and stalled
cleanup efforts.
At the top of their priority list: - reviving federal laws-particularly
the Clean Water Act-that have been weakened or narrowly interpreted
in recent years,
- boosting funding for the nation's faltering and
aging water infrastructure, and
- strengthening the Environmental
Protection Agency's regulation of water pollution from industry
and power plants.
Many of these priorities appear to align with those of Barack Obama.
As recently as last week, he stressed the need for infrastructure
improvement. During the campaign, he touted his support for water
protection in battleground states like Florida, pledging to help
protect and restore the Florida Everglades. His campaign advisers
say he will support legislation to restore the full scope of environmental
laws that were weakened under the current administration.
To read more, please visit:
US
News & World Report
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In The News-is
a bi-weekly, online service from the Water Quality & Health
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