Navigation Links
Dangerous printer particles identified
Date:2/11/2009

The identity and origin of tiny, potentially hazardous particles emitted from common laser printers have been revealed by a new study at Queensland University of Technology.

Professor Lidia Morawska from QUT's International Laboratory for Air Quality and Health lead the study to answer questions raised by earlier findings that almost one third of popular laser printers emitted large numbers of ultrafine particles.

These tiny particles are potentially dangerous to human health because they can penetrate deep into the lungs.

Professor Morawska said the latest study found that the ultrafine particles formed from vapours produced when the printed image is fused to the paper.

"In the printing process, toner is melted and when it is hot, certain compounds evaporate and those vapours then nucleate or condense in the air, forming ultrafine particles." she said

"The material is the result of the condensation of organic compounds which originate from both the paper and hot toner."

The study compared a high emitting printer with a low emitting printer and found that there were two ways in which printers contributed to the formation of these particles.

"The hotter the printer gets, the higher the likelihood of these particles forming, but the rate of change of the temperature also contributes," Professor Morawska said.

"The high emitting printer operated at a lower average temperature, but had rapid changes in temperature, which resulted in more condensable vapour being emitted from the printer.

"The printer with better temperature control emitted fewer particles"

Professor Morawska said this research provided information which would help consumers better understand the risks of laser printers and would help the printer industry to design low or no emission printers.


'/>"/>

Contact: Rachael Wilson
rachael.wilson@qut.edu.au
Queensland University of Technology
Source:Eurekalert

Page: 1

Related biology news :

1. NYU scientists discover dangerous new method for bacterial toxin transfer
2. Mayo researchers identify dangerous two-faced protein crucial to breast cancer spread and growth
3. Warming world in range of dangerous consequences
4. Humans response to risk can be unnecessarily dangerous, finds Tel Aviv University study
5. Study shows mercury levels from products decreasing, though still at dangerous levels
6. Genetic breakthrough explains dangerously high blood glucose levels
7. Detecting dangerous chemicals with lasers, exploring the brains circuitry with light and more
8. A chilling glimpse inside the minds of dangerous criminals
9. Defining genes role may lead to prevention of dangerous corn toxin
10. Dolphin therapy a dangerous fad, Emory researchers warn
11. Dangerous liaisons
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... approximately 3 million infants, a team of scientists across ... Massachusetts Medical School, have shown that newborn screening for ... public health newborn screening programs. Data from 11 newborn ... the Journal of the American Medical Association ... newborns is higher than previously thought and believed to ...
(Date:8/20/2014)... scientists have discovered that acral melanomas the rare type ... are genetically distinct from other more common types of ... in the journal Pigment Cell & Melanoma Research . ... hands, soles of the feet, nail-beds and other hairless parts ... it,s not caused by UV damage from the sun. , ...
(Date:8/20/2014)... pepper causes a burning spiciness that is irresistible to ... pepper,s effect are using their findings to develop a ... can be caused by inflammation or other problems. They ... tested in clinical trials, in ACS, Journal of ... that decades ago, scientists had pegged a compound called ...
Breaking Biology News(10 mins):Newborn screening expansion offers early diagnosis and treatment to infants with SCID 2Newborn screening expansion offers early diagnosis and treatment to infants with SCID 3Scientists learn more about rare skin cancer that killed Bob Marley 2
... U.S. Department of Energy this month awarded a group ... develop bacteria that can turn the methane in natural ... we,re shooting for will have the same fuel characteristics ... professor of chemical engineering and microbiology. "It can be ...
... Innes Centre will publish the first RNA sequence data on the ... will release the data via a website to a system designed ... used to crowdsource expertise during the 2011 E. coli ... able to access the RNA sequence and start to analyse it ...
... University of Illinois at Urbana-Champaign has received a fiveyear, $5.7 ... in corn. These strains have the potential to combat the ... yield. A team at the Institute for Genomic Biology in ... lead the research. "Ozone can cause major damage ...
Cached Biology News:Energy Deptartment funds UW project to turn wasted natural gas into diesel 2Crowdsourcing to kickstart comeback from ash dieback 2University of Illinois receives grant to study ozone resistance in corn 2
(Date:8/19/2014)... (PRWEB) August 19, 2014 Shimadzu ... chromatography systems, Prominence-i and Nexera-i, adding to the ... Combining excellent functionality, an intuitive operating environment, and ... a more efficient workflow for conventional to ultra-high-speed ... innovative, intuitive and intelligent design so users can ...
(Date:8/19/2014)... -- Research and Markets  has announced the addition of ... Business Report" report to their offering. ... Cells (SOFCs) in US$ Thousands. The report provides separate comprehensive ... Europe , Asia-Pacific , and ... the period 2012 through 2020. Market data and analytics are ...
(Date:8/19/2014)... , Aug. 19, 2014 CSSi, the ... industry, recently announced the formation of the company,s Medical ... announce the addition of Dr. William E. Gannon, ... http://photos.prnewswire.com/prnh/20140818/136957 The MCAB, with ... variety of therapeutic areas and set strategic goals for ...
(Date:8/19/2014)... Sales Horizons, a leader in sales ... sales skills training course to help companies develop ... staff spend the majority of their time on client ... or physician practice – providing support and education to ... Sales Horizons believes clinical staff are and should be ...
Breaking Biology Technology:Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 3Global Solid Oxide Fuel Cells (SOFCs) - Strategic Business Report 2014 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 3Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 3
... speculate that the Greater Madison area, while a key ... the "critical mass" of talent, innovation, and specialization necessary ... sustained growth. , ,But as area biotech leaders and ... discovery tool provider, Caden Biosciences , to a ...
... Madison, Wis. - The Madison-based Imago Scientific ... to Iowa State University's College of Engineering ... High Throughput Atom-Scale Analysis. , ,The lab will be ... Discovery, which is led by Balaji Narasimhan, an associate ...
... to the future growth and success of the state ... state boasts significant competitive advantages in terms of talent, ... mass needed to compete with our most significant competition ... resources so vital to building and sustaining economic growth. ...
Cached Biology Technology:Caden Biosciences may signal critical mass 2Regional collaboration is key to state's future 2Regional collaboration is key to state's future 3
Assay Diluent, 10 L...
Assay Diluent Trial Pack, 4 x 100 mL...
HRP Monoclonal-Goat Diluent - 5X Concentrate, 25 mL...
SpectroQuest single beam 1.8nm UV/Vis spectrophotometer; stand-alone unit...
Biology Products: