Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get two FREE E-Books

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Depression: 21st Century Solutions + The Dark Side of Wheat

n/a


Why You Don't See Ads on GreenMedInfo

Did you know that GreenMedInfo.com is is 100% member supported? It is through your membership that we are able to add research content daily, provide thoughtful articles on groundbreaking health & wellness topics, and continue to educate and empower people on the science supporting natural healing.

Our website has always offered open access to our carefully curated research (and always will) but we recently made the decision to become completely advertisement free.

In order for us to continue, we need your support more than ever. Our memberships start at only $8.00 per month and provide you with enhanced content & features.

We appreciate you supporting our mission and sharing our passion!

For more information on becoming a member of GreenMedInfo.com, click here.


Abstract Title:

Progressive Increase in Disinfection Byproducts and Mutagenicity from Source to Tap to Swimming Pool and Spa Water: Impact of Human Inputs.

Abstract Source:

Environ Sci Technol. 2016 Jul 5 ;50(13):6652-62. Epub 2016 May 18. PMID: 27124361

Abstract Author(s):

Eric J Daiber, David M DeMarini, Sridevi A Ravuri, Hannah K Liberatore, Amy A Cuthbertson, Alexis Thompson-Klemish, Jonathan D Byer, Judith E Schmid, Mehrnaz Z Afifi, Ernest R Blatchley, Susan D Richardson

Article Affiliation:

Eric J Daiber

Abstract:

Pools and spas are enjoyed throughout the world for exercise and relaxation. However, there are no previous studies on mutagenicity of disinfected spa (hot tub) waters or comprehensive identification of disinfection byproducts (DBPs) formed in spas. Using 28 water samples from seven sites, we report the first integrated mutagenicity and comprehensive analytical chemistry of spas treated with chlorine, bromine, or ozone, along with pools treated with these same disinfectants. Gas chromatography (GC) with high-resolution mass spectrometry, membrane-introduction mass spectrometry, and GC-electron capture detection were used to comprehensively identify and quantify DBPs and other contaminants. Mutagenicity was assessed by the Salmonella mutagenicity assay. More than 100 DBPs were identified, including a new class of DBPs, bromoimidazoles. Organic extracts of brominated pool/spa waters were 1.8× more mutagenic than chlorinated ones; spa waters were 1.7× more mutagenic than pools. Pool and spa samples were 2.4 and 4.1× more mutagenic, respectively, than corresponding tap waters. The concentration of the sum of 21 DBPs measured quantitatively increased from finished to tap to pool to spa; and mutagenic potency increased from finished/tap to pools to spas. Mutagenic potencies of samples from a chlorinated site correlated best with brominated haloacetic acid concentrations (Br-HAAs) (r = 0.98) and nitrogen-containing DBPs (N-DBPs) (r = 0.97) and the least with Br-trihalomethanes (r =0.29) and Br-N-DBPs (r = 0.04). The mutagenic potencies of samples from a brominated site correlated best (r = 0.82) with the concentrations of the nine HAAs, Br-HAAs, and Br-DBPs. Human use increased significantly the DBP concentrations and mutagenic potencies for most pools and spas. These data provide evidence that human precursors can increase mutagenic potencies of pools and spas and that this increase is associated with increased DBP concentrations.

Study Type : In Vitro Study

Print Options


Key Research Topics

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get two FREE E-Books

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Depression: 21st Century Solutions + The Dark Side of Wheat

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2018 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.