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:4/20/2014)... growing in importance for both basic researchers and ... the University of Maryland have developed a new ... gene activity from RNA sequencing (RNA-seq) data., With ... speedy fish, estimates of gene expression that previously ... few minutes, with accuracy that equals or exceeds ...
(Date:4/20/2014)... corn crop residue to make ethanol and other biofuels ... than gasoline, according to a study published today in ... findings by a University of Nebraska-Lincoln team of researchers ... to meet federal mandates to ramp up ethanol production ... the stalks, leaves and cobs in cornfields after harvest ...
(Date:4/18/2014)... the past 20 years, researchers have published soil organic ... have suggested that soil organic carbon can be sequestered ... to no-till systems. However, there is a growing body ... and soybean rotations without cover crops, small grains, and ... at the published rates. , "Some studies have shown ...
Breaking Biology News(10 mins):Computational method dramatically speeds up estimates of gene expression 2Study casts doubt on climate benefit of biofuels from corn residue 2Study casts doubt on climate benefit of biofuels from corn residue 3Researchers question published no-till soil organic carbon sequestration rates 2Researchers question published no-till soil organic carbon sequestration rates 3Researchers question published no-till soil organic carbon sequestration rates 4
... Carnegie Mellon University,s M. Granger Morgan will unveil a ... can help society reduce dangerous greenhouse gas emissions and ... 9 at 1 p.m. at 1200 New York Ave. ... heads a team of investigators from Carnegie Mellon, the ...
... Philadelphia, PA As children transition from preschool-age to ... that may not meet current recommendations and may contribute ... January/February 2009 issue of the Journal of Nutrition ... that their pre-school children (2 to 5 years) had ...
... in the brain,s hippocampus, but what controls this birth has ... Science , neuroscientists at the Johns Hopkins University School ... which depends on brain activity, also depends on a protein ... genetic material. "How is it that when you ...
Cached Biology News:Carnegie Mellon to unveil new sequestration plan 2Eating habits and exercise behaviors in children can deteriorate early 2Growth of new brain cells requires 'epigenetic' switch 2
(Date:1/15/2014)... A study has been launched to test whether technology ... help to tackle the problem of obesity.  This unique healthcare ... based in Stowmarket) and academics at University Campus Suffolk is ... which is inspired by equipment used to collect data about ...
(Date:1/15/2014)... 2014 DTS Language Services, Inc . ... Portal for Life Science organizations who need document translations. ... matter of their documents in advance with a selection of ... of translations, often a critical factor in clinical and scientific ...
(Date:1/15/2014)... , Jan. 15, 2014 TaiGen Biotechnology Company, Limited ... agreement with R-Pharm, a leading Russian pharmaceutical company, to ... Russian Federation , Turkey ... States (CIS). Nemonoxacin is a novel antibiotic for the treatment ...
(Date:1/14/2014)... Communications, a leading provider of strategic communications services to corporations and ... the United States and Europe ... JD, is returning to the firm,s Washington, D.C. ... more than two years of service as Associate Commissioner for the ...
Breaking Biology Technology:Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4DTS Improves Efficiency for Life Science Document Translations 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Former FDA Associate Commissioner Returns To 3D Communications 2
... are the words of the automated announcement that one used ... whenever the doors opened. The gap refers to the space ... through the American workplace today, I cant help thinking that ... the country. In this case, the gap to watch out ...
... The Milwaukee Brewers will soon have ... players at Miller Park, officials announced Thursday. , ,Eastman ... will provide a Directview CR 850 computer-operated ... will be used to generate high-resolution digital X-rays of ...
... award from Raj Veeramani, director of the E-Business Institute. ... is a brave new world of advertising, says Jerry Shereshewsky, ... University of Wisconsin student (and cohort of former Madison Mayor ... his impact on the future of business. He was a ...
Cached Biology Technology:Minding the Generation Gap 2Minding the Generation Gap 3Advertising ambassador explains the reinvention of marketing 2Advertising ambassador explains the reinvention of marketing 3
anti-dansyl, rabbit IgG fraction *1 mg/mL* Secondary Detection; Anti-Dye and Anti-Hapten Antibodies...
MOUSE ANTI RAT RT1Ac Immunogen: PHA activated rat lymphocytes...
Prepared in 0.85% saline....
TACS Apoptotic DNA Laddering Kits are used to assay cells and tissues for apoptosis by...
Biology Products: