Featured Research

from universities, journals, and other organizations

Researchers question emergency water treatment guidelines

Date:
April 16, 2014
Source:
American Chemical Society
Summary:
The Environmental Protection Agency's recommendations for treating water after a natural disaster or other emergencies call for more chlorine bleach than is necessary to kill disease-causing pathogens and are often impractical to carry out, a new study has found. The authors of the report suggest that the agency review and revise its guidelines.

The Environmental Protection Agency's (EPA's) recommendations for treating water after a natural disaster or other emergencies call for more chlorine bleach than is necessary to kill disease-causing pathogens and are often impractical to carry out, a new study has found. The authors of the report, which appears in the ACS journal Environmental Science & Technology, suggest that the agency review and revise its guidelines.

Related Articles


Daniele Lantagne, who was at the Centers for Disease Control and Prevention (CDC) at the time of the study and is now at Tufts University, and colleagues note that after natural disasters such as floods, clean water can be scarce. To prevent the spread of water-borne illnesses, the EPA currently recommends "bottle, boil, bleach" in case of a water emergency. That is, people should turn to bottled water as a first resort. If that's not an option, then they should boil available water to disinfect it. As a last resort, they should add "1/8 teaspoon (or 8 drops) of regular, unscented, liquid household bleach for each gallon of water." But, as the researchers point out, 1/8 of a teaspoon is not the same as 8 drops. And both amounts are higher than CDC and World Health Organization recommendations. To further evaluate the guidelines, the team tested different bleach treatment levels at six households around the country using water from various sources.

They found that the range of EPA-recommended doses (8 drops to 1/8 of a teaspoon) were higher than necessary to kill disease-causing pathogens in the samples. In a related project, they reported that even if the guideline were lowered, many people they surveyed would not be able to carry it out. None had the right kind of bleach in the house, and few had the correct measuring devices. The researchers recommend a revision of EPA guidelines and more research into more practical water treatment products.

The authors acknowledge funding from the Centers for Disease Control and Prevention.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Daniele Lantagne, Bobbie Person, Natalie Smith, Ally Mayer, Kelsey Preston, Elizabeth Blanton, Kristen Jellison. Emergency Water Treatment with Bleach in the United States: The Need to Revise EPA Recommendations. Environmental Science & Technology, 2014; 140409120313005 DOI: 10.1021/es405357y

Cite This Page:

American Chemical Society. "Researchers question emergency water treatment guidelines." ScienceDaily. ScienceDaily, 16 April 2014. <www.sciencedaily.com/releases/2014/04/140416112958.htm>.
American Chemical Society. (2014, April 16). Researchers question emergency water treatment guidelines. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2014/04/140416112958.htm
American Chemical Society. "Researchers question emergency water treatment guidelines." ScienceDaily. www.sciencedaily.com/releases/2014/04/140416112958.htm (accessed March 31, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Tuesday, March 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

You Won't Be Driving Tesla's Mystery Product

You Won't Be Driving Tesla's Mystery Product

Newsy (Mar. 30, 2015) — Tesla CEO Elon Musk announced a new product line will debut April 30, but it&apos;s not a car. Video provided by Newsy
Powered by NewsLook.com
Solar Impulse Departs Myanmar for China

Solar Impulse Departs Myanmar for China

AFP (Mar. 30, 2015) — Solar Impulse 2 takes off from Myanmar&apos;s second biggest city of Mandalay and heads for China&apos;s Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Colombian Project Transforms Old Tires Into Green Housing

Colombian Project Transforms Old Tires Into Green Housing

AFP (Mar. 30, 2015) — To put a roof over their heads and help the environment, residents near Bogota are building houses out of recycled bottles and old tires. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
The Future Of Japanese Whaling: Heritage Vs. Conservation

The Future Of Japanese Whaling: Heritage Vs. Conservation

Newsy (Mar. 30, 2015) — In 2014, the International Court of Justice ruled Japan could no longer engage in whaling in the Antarctic, but Japan has plans to return this year. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins