Navigation Links
Time spent in car drives up air pollution exposure
Date:10/30/2007

Los Angeles, Oct. 30, 2007 The daily commute may be taking more of a toll than people realize. A new study by researchers at the University of Southern California (USC) and the California Air Resources Board found that up to half of Los Angeles residents total exposure to harmful air pollutants occurs while people are traveling in their vehicles.

Although the average Los Angeles driver spends about six percent (1.5 hours) of his or her day on the road, that period of time accounts for 33 to 45 percent of total exposure to diesel and ultrafine particles (UFP), according to the study published this month in the journal Atmospheric Environment and available online. On freeways, diesel-fueled trucks are the source of the highest concentrations of harmful pollutants.

If you have otherwise healthy habits and dont smoke, driving to work is probably the most unhealthy part of your day, says Scott Fruin, D.Env., assistant professor of environmental health at the Keck School of Medicine of USC. Urban dwellers with long commutes are probably getting most of their UFP exposure while driving.

High air exchange rates that occur when a vehicle is moving make roadways a major source of exposure. Ultrafine particles are of particular concern because, unlike larger particles, they can penetrate cell walls and disperse throughout the body, Fruin says. Particulate matter has been linked to cardiovascular disease, but the ultrafine fraction on roadways appears to be more toxic than larger sizes.

Researchers measured exposure by outfitting an electric vehicle with nine, fast-response air pollution instruments. A video recorded surrounding traffic and driving conditions on freeways and arterial roads throughout the Los Angeles region. Measurements were collected during a three-month period from February to April 2003, and four typical days were selected for a second-by-second video and statistical analysis.

Results showed that the two
'/>"/>

Contact: Meghan Lewit
lewit@usc.edu
323-442-3576
University of Southern California
Source:Eurekalert

Page: 1 2

Related biology news :

1. Unchecked DNA replication drives earliest steps toward cancer
2. Climate change drives widespread amphibian extinctions
3. Habitat microstructure drives salamander metamorphosis
4. Mindless autopilot drives people to underestimate food decisions
5. Buildup of damaged DNA in cells drives aging
6. A genetic gang of 4 drives spread of breast cancer
7. Solution to Pollution: New Bacteria Eats Toxic Waste
8. UN environmental agency steps up battle against marine pollution
9. Pollution-eating bacteria produce electricity
10. Global warming increases oyster sensitivity to pollution
11. Toxic flood lifts lid on common urban pollution problem
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... and his doctoral student have designed a device based ... from fog and dew., The device could provide water ... the globe., Cheng Luo, professor in the Mechanical & ... the same College of Engineering department, published "Bioinspired Plate-Based ... (American Chemical Society) Applied Materials & Interfaces ...
(Date:9/17/2014)... (Sept. 17, 2014) A rare genetic disorder known as ... a recent joint investigation by researchers at San Diego ... In addition to suggesting better treatment options for people ... into the genetic underpinnings of autism., Jacobsen syndrome affects ... Institutes of Health. It occurs in a person when ...
(Date:9/17/2014)... Campaigns against disposable plastic shopping bags and their environmental ... lawmakers passed the first statewide ban on the bags, ... But the plastic bag industry is not yielding without ... & Engineering News , the weekly newsmagazine of the ... with C&EN, reports that the anti-bag campaign logged its ...
Breaking Biology News(10 mins):Shorebird's beak inspires UT Arlington research on water collection 2A link between Jacobsen syndrome and autism 2
... "The history of all past society has consisted in ... of society by the other". Karl Marx and ... diversity in social groups can increase group well being, ... societies are characterized by struggles for control: which individuals ...
... nonprofit research initiative dedicated to preventing pandemics, has ... Skoll Foundation. The support, which includes $5.5 million ... to date from Google.org. GVFI, an organization ... before they become fully established, brings together fieldwork ...
... 20 Based on its recent,analysis of ... Frost & Sullivan recognizes Precise Biometrics with ... Emerging Company of the Year for its,high-quality ... offers a software combination of smart card ...
Cached Biology News:Caste in the colony 2Global Viral Forecasting Initiative receives $11M to implement pandemic early warning system 2Frost & Sullivan Recognizes Precise Biometrics as a Key Player in the Non-AFIS Fingerprint Market 2Frost & Sullivan Recognizes Precise Biometrics as a Key Player in the Non-AFIS Fingerprint Market 3
(Date:9/19/2014)... (PRWEB) September 19, 2014 Cereal ... food industries will gather October 5–8, 2014, for ... Rhode Island Convention Center in Providence, Rhode Island. ... the work of food scientists, chemists, microbiologists, nutritionists, ... and food production management. To date, 1,000 attendees ...
(Date:9/18/2014)... BELLINGHAM, Washington, USA (PRWEB) September 18, 2014 ... of Representatives of a bill designed to stimulate development ... high-value jobs is being praised by leaders of ... The bill, the Revitalizing American Manufacturing and Innovation (RAMI) ... vote. The bill’s authors have said they are optimistic ...
(Date:9/18/2014)... (PRWEB) September 18, 2014 A novel ... an MRI scanner is currently being tested as part ... Women's Hospital in Boston with the aim of determining ... can make prostate cancer biopsies faster, more accurate, less ... system also has the potential to deliver prostate cancer ...
(Date:9/18/2014)... D.C. (PRWEB) September 18, 2014 On ... Durbin and Sen. Jim Risch for National Lab Day ... projects from across the national laboratory system. Durbin and ... which aims to increase awareness of the reach of ... technologies and discoveries to address some of our nation's ...
Breaking Biology Technology:Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 3House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3
... has deployed Procuri Totalsource sourcing solution to ... U.S. breweries and increase savings through the streamlining ... ,Procuri, based in Atlanta, also provides software to ... Association, Eastman Kodak, ITT Industries, KLM Royal Dutch ...
... USDA Forest Service Forest Products Laboratory (FPL) have joined ... industry in an effort to reduce the economic costs ... business and government offices while simultaneously improving ... some 500,000 tons of bleached kraft paper, which includes ...
... University of Wisconsin-Platteville will be one of ... program offered by the University of California-Irvine, the ... Management Certificate Program will offer professionals access to ... advancement in the workplace. The UC Irvine Extension's ...
Cached Biology Technology:Reducing brightness to make a better paper 2Reducing brightness to make a better paper 3
EDTA, tetrasodium salt, 1 kg. Ethylene diaminetetraacetic acid.Dihydrate. Assay: 99-101% (as is).Risks: 36, 37, 38 ; Safety Precautions: 22, 36, 37. Category: Nucleotides & Enzymes & Biochemicals, Ul...
Hybridization cassette for one slide...
... Tissues are selected tissues from mouse, rat, ... embedded in paraffin, sectioned and mounted onto ... are ready for use in tissue RNA ... tissue slides are suitable for in situ ...
MHC Volumes 1 & 2...
Biology Products: