official carcinogens lists now 4 substances longer
Last Updated : GMT 06:49:16
Arab Today, arab today
Arab Today, arab today
Last Updated : GMT 06:49:16
Arab Today, arab today

Official carcinogens lists now 4 substances longer

Arab Today, arab today

Arab Today, arab today Official carcinogens lists now 4 substances longer

Carcinogens are substances
Washington - UPI

Four new substances have been added to the official federal list of carcinogens, which is updated each year by the U.S. Department of Health and Human Services (HHS). Carcinogens are substances -- chemical, biological, and physical agents -- implicated in the direct causation of cancer, either by damaging the body's genome or altering cellular metabolism.
Of the four new substances, only one is classified as a "known human carcinogen." The other three were given the qualified classification of "reasonably anticipated to be human carcinogens."
The known carcinogen is ortho-toluidine, or o-toluidine, one of three toluidine isomers commonly used to sythensize rubber chemicals, pesticides, and dyes. Several studies have strongly linked the substance to bladder cancer. Ortho-toluidine was once only "reasonably anticipated" but is now "known" to cause cancer.
The other three newcomers -- which probably-almost-certainly cause cancer, too -- are the chemicals 1-bromopropane, cumene and pentachlorophenol. Not surprisingly, two of the four newly listed carcinogens (known and anticipated) can be found in tobacco smoke.
The organobromine compound 1-bromopropane is a colorless liquid that is used as a solvent in a number of commercial industries. It's often used in dry cleaning and to remove residues from optics, electronics and metals. When inhaled by rodents, the compound has been linked to tumors in the skin, lungs and digestive tract.
Cumene is a flammable, colorless liquid and a natural constituent of both crude oil and refined fuels. Inhalation of cumene fumes was shown to cause lung tumors in male and female mice, as well as liver tumors in female mice.
Pentachlorophenol (PCP) is a cocktail of chemicals commonly used as a pesticide, disinfectant and wood preservative. Though dangerous, the substance is remarkably effective. A telephone pole, for example, only lasts about seven years if untreated. If treated with PCP, the same pole can last upwards of 35 years. Those who work in wood production and wood treatment plants are most likely to be exposed to pentachlorophenol and its byproducts. One study found a link between non-Hodgkin lymphoma and human exposure to pentachlorophenol. Mice studies have also linked the substance to tumors in a variety of organs.
"Identifying substances in our environment that can make people vulnerable to cancer will help in prevention efforts," Dr. Linda Birnbaum, director of the National Institute of Environmental Health Sciences (NIEHS) and the National Toxicology Program (NTP), said in a recent press release accompanying the carcinogens report. "This report provides a valuable resource for health regulatory and research agencies, and it empowers the public with information people can use to reduce exposure to cancer causing substances."

 

arabstoday
arabstoday

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

official carcinogens lists now 4 substances longer official carcinogens lists now 4 substances longer

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

official carcinogens lists now 4 substances longer official carcinogens lists now 4 substances longer

 



GMT 08:13 2017 Friday ,03 February

Actress Rogina chooses her roles carefully

GMT 11:14 2017 Wednesday ,20 December

Air strikes kill 19 civilians in northwest Syria

GMT 20:39 2017 Saturday ,21 October

UK amb. mourns Egypt policemen

GMT 17:03 2017 Saturday ,16 September

Bangladesh accuses Myanmar of violating its airspace

GMT 05:00 2017 Thursday ,07 September

Palestinians blast 'unacceptable' US ambassador

GMT 02:42 2012 Saturday ,28 April

Walieddine, Druze regional spiritual authority dies
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2025 ©

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2025 ©

arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday