From: "norgesen" <[EMAIL PROTECTED]>
Date: November 15, 2008 8:00:38 AM PST
To: <[EMAIL PROTECTED]>
Subject: [cia-drugs] Rocket-Fuel Ingredient, Perchlorate In Our Tap
Water
Reply-To: cia-drugs@yahoogroups.com
Rocket-Fuel Ingredient, Perchlorate In Our Tap Water
By WaterTech, on 14-11-2008
Rocket-fuel ingredient perchloratehas been inmore than 90 percent of
sodium hypochlorite samples from production facilities across North
America, reports an article in the November issue of Journal AWWA, the
American Water Works Association’s (AWWA) peer-reviewed publication.
The article, entitled “Occurrence of Perchlorate in Sodium
Hypochlorite” and authored by Peter Greiner and colleagues, is the
result of an NSF International survey. In response to recent findings
of perchlorate in sodium hypochlorite, NSF surveyed sodium
hypochlorite products used to treat drinking water to better
understand the occurrence of perchlorate as a contaminant.
The authors found a trend of increasing perchlorate concentration as
the hypochlorite aged. They also discovered that the duration and
conditions of storage can affect the levels of the contaminant in a
utility’s hypochlorite supplies — and ultimately its drinking water.
According to an abstract of the article, “The investigation provided a
basis for recommendations to minimize perchlorate formation and lower
the potential for its unintended addition to drinking water. Sodium
hypochlorite should be stored in the dark at cool temperatures,
diluted if possible, and used within a few weeks of manufacture.”
Perchlorate, a chemical also used in the manufacture of fireworks, is
considered a contaminant of health concern because exposure to high
levels over extended periods may adversely affect thyroid activity.
Some states are beginning to regulate perchlorate absent a federal
standard.
To access the article abstract, click here (AWWA membership is
required to view full article).
For related information, click here.
http://www.watertechonline.com/news.asp?N_ID=70952
http://www.noonehastodietomorrow.com//index.php?option=com_content&task=view&id=517&Itemid=115
~~~
Occurrence of perchlorate in sodium hypochlorite
Peter Greiner, Clif McLellan, Dale Bennett, and Angie Ewing
Perchlorate is a contaminant of health concern because exposure to
high levels over extended periods may adversely affect thyroid
activity. In response to recent findings of perchlorate in sodium
hypochlorite, NSF International surveyed sodium hypochlorite products
used to treat drinking water to better understand the occurrence of
perchlorate as a contaminant.
Perchlorate contamination was found to occur in more than 90% of
sodium hypochlorite samples from production facilities across North
America. Results also indicated a trend of increasing perchlorate
concentration as the hypochlorite aged. The duration and conditions of
storage can affect the levels of the contaminant in a utility’s
hypochlorite supplies and ultimately its drinking water.
The investigation provided a basis for recommendations to minimize
perchlorate formation and lower the potential for its unintended
addition to drinking water. Sodium hypochlorite should be stored in
the dark at cool temperatures, diluted if possible, and used within a
few weeks of manufacture.—MPM
Full Text in PDF
(Login required)
http://www.awwa.org/publications/AWWAJournalArticle.cfm?itemnumber=42398
