THM DBP FactSheet

Transcript

1 Disinfection By -products (DBPs) -products (DBPs) , are formed when chlorine and Disinfection by , also called trihalomethanes bromine interact with natural organic materials in water, such as in chlorinated drinking water treated swimming pools. DBPs can be found in the air during activities such as and chlorine- showering, bathing, dishwashing, and swimming. DBPs do not build up in the environment. How People Are Exposed to DBPs People are exposed to DBPs by drinking chlorinated or brominated water and by breathing in air containing DBPs. The skin also absorbs DBPs during bathing and swimming. Afte r exposure, DBPs remain in the body for only a short period of time. People’s Health How DBPs Affect uman health effects from DBPs at low environmental exposures are unknown. Humans The h ly large amounts of some DBPs could experience liver damage and decreased exposed to unusual nervous system activity. Levels of DBPs in the U.S. Population In the Fourth National Report on Human Exposure to Environmental Chemicals ( Fourth Report ), CDC scientists measured four different DBPs in the blood of at least 1,222 participants who took part in the National Health and Nutrition Examination Survey aged 20–59 years s in blood, scientists can estimate the (NHANES) during 2003–2004. By measuring DBP amounts of the DBPs that have entered peoples’ bodies. CDC scienti sts did not find detectable blood levels of DBPs in all participants. Levels were similar to those seen in small past studies. Finding a measurable amount of one or more DBPs in blood does not mean that the level s of DBP cause an adverse health effect. Bi omonitoring studies of blood DBPs can provide physicians and public health officials with reference values so that they can determine whether people have been exposed to higher levels of DBPs than are found in the general population. Biomonitoring data can also help scientists plan and conduct research on exposure and health effects. For More Information  Agency for Toxic Substances and Disease Registry Toxicological profile for bromoform and chlorodibromomethane http://www.atsdr.cdc.gov/toxprofiles/tp130.html

2 Toxicological profile for chloroform update http://www.atsdr.cdc.gov/toxprofiles/tp6.html  Environmental Protection Agency Disinfection Byproducts: A Reference Resource http://www.epa.gov/enviro/html/icr/gloss_dbp.html November 2009 The Centers for Disease Control and Prevention (CDC) protects people’s health and safety by preventing and controlling diseases and injuries; enhances health decisions by providing credible information on critical health issues; and promotes healthy living through strong partnerships with local, national, and international organizations.

Related documents

bordism

bordism

BORDISM: OLD AND NEW DANIEL S. FREED ttheUniversityofTexasatAustin What follows are lecture notes from a graduate course given a in Fall, 2012. The first half covers some classical topics in b ordism,...

More info »
5 6 Inequalities in Two Triangles

5 6 Inequalities in Two Triangles

Compare the given measures. m m ACB GDE 1. and SOLUTION: , and and In AB > EG . By the converse of the Hinge Theorem, ANSWER: ACB m > GDE m and 2. KM JL SOLUTION: , In and and . By the Hinge Theorem, ...

More info »
crammer06a.dvi

crammer06a.dvi

Journal of Machine Learning Research 7 (2006) 551–585 Submitted 5/05; Published 3/06 Online Passive-Aggressive Algorithms ∗ @ CIS . UPENN . EDU Koby Crammer CRAMMER OFERD CS . HUJI . AC . IL Ofer Deke...

More info »
graphical.dvi

graphical.dvi

A survey of graphical languages for monoidal categories Peter Selinger Dalhousie University Abstract This article is intended as a reference guide to various noti ons of monoidal cat- egories and thei...

More info »
MC

MC

THE IWASAWA MAIN CONJECTURES FOR GL 2 CHRISTOPHER SKINNER AND ERIC URBAN 1. Introduction In this paper we prove the Iwasawa-Greenberg Main Conjecture for a large class of elliptic curves and modular f...

More info »
Fourth National Report on Human Exposure to Environmental Chemicals Update

Fourth National Report on Human Exposure to Environmental Chemicals Update

201 8 Fourth National Report on Human Exposure to Environmental Chemicals U pdated Tables, March 2018 , Volume One

More info »
S04.pdf

S04.pdf

Disinfectants and Disinfection By-Products Session Objectives To describe the importance of disinfection in providing safe drinking water. • and describe their principal To describe the key disinfecta...

More info »
Network Embedding as Matrix Factorization: Unifying DeepWalk, LINE, PTE, and node2vec

Network Embedding as Matrix Factorization: Unifying DeepWalk, LINE, PTE, and node2vec

Network Embedding as Matrix Factorization: Unifying DeepWalk, LINE, PTE, and node2vec ‡ ♯ ‡ † ‡ †∗ , Yuxiao Dong , and Jie Tang Jiezhong Qiu , Kuansan Wang , Jian Li , Hao Ma † Department of Computer ...

More info »
Uranium 2014: Resources, Production and Demand

Uranium 2014: Resources, Production and Demand

A Joint Report by the OECD Nuclear Energy Agency and the International Atomic Energy Agency Uranium 2014: Resources, Production and Demand U ranium 2014: Resources, Production and Demand N E A

More info »
Bottled Water Quality Investigation: 10 Major Brands, 38 Poll...

Bottled Water Quality Investigation: 10 Major Brands, 38 Poll...

Bottled Water Quality Investigation: 10 Major Brands, 38 Pollutants http://www.ewg.org/book/export/html/27010 http://www.ewg.org Published on Environmental Working Group ( ) Bottled Water Quality Inve...

More info »
stein modform

stein modform

Modular Forms: A Computational Approach William A. Stein (with an appendix by Paul E. Gunnells) Department of Mathematics, University of Washington E-mail address : [email protected] Departme...

More info »
notes.dvi

notes.dvi

∗ The extended k -tree algorithm † ‡ Lorenz Minder Alistair Sinclair Abstract q random lists of n -bit vectors, L k , . . . , L = 2 , Consider the following problem: Given k 1 , find x L ∈ each of len...

More info »
ends

ends

Bruce Hughes Andrew Ranicki Vanderbilt University University of Edinburgh Ends of complexes

More info »
rss urls

rss urls

RSS URLs country category rss-url http:/ / abcnews/ usheadlines US general feeds.abcnews.com/ / rss.cnn.com/ cnn_topstories.rss US general http:/ rss/ www.cbsnews.com/ / rss/ main http:/ US general la...

More info »
bookdown: Authoring Books and Technical Documents with R Markdown

bookdown: Authoring Books and Technical Documents with R Markdown

Yihui Xie bookdown: Authoring Books and Technical Documents with R Markdown

More info »
categories

categories

Category Theory Lecture Notes Daniele Turi Laboratory for Foundations of Computer Science University of Edinburgh September 1996 – December 2001

More info »
Microsoft Word   Directory of Assisted Housing 03 2019.docx

Microsoft Word Directory of Assisted Housing 03 2019.docx

2019 DIRECTORY OF ASSISTED HOUSING IN NEW HAMPSHIRE 2019 Directory of Assisted Housing New Hampshire Housing Finance Authority

More info »
acdsee 21

acdsee 21

Photo Studio Standard 2018

More info »
Reducing Environmental Cancer Risk: What We Can Do Now

Reducing Environmental Cancer Risk: What We Can Do Now

2008–2009 Annual Report President’s Cancer Panel i REDUCING ENVIRONMENTAL CANCER RISK What We Can Do Now National Cancer Institute National Institutes of Health U.S. DEPARTMENT OF HEALTH AND HUMAN SER...

More info »
Bandit Algorithms

Bandit Algorithms

Bandit Algorithms ́ Tor Lattimore and Csaba Szepesv ari st Draft of Wednesday 1 May, 2019 Revision: c0525791b66f0f41db4e87204ac91f41693d4365

More info »