HOME >> BIOLOGY >> NEWS
Road dust: Rural vehicles emit more pollutants than urban ones

On top of looming tougher pollution rules for SUVs and other popular vehicles, an environmental engineer at Washington University in St. Louis now has devised a new measurement that could make both car owners and manufacturers nervous. It's called ppvm (pollutant per vehicle mile). It is a measurement of the total particulate matter emissions a vehicle makes per mile traveled. While ppvm won't appeal to the auto owner the way that mpg, rpm or mph do, it's likely to have a future impact on air pollution measures and standards nationwide.

Jay R. Turner, D.Sc., assistant professor of chemical engineering and civil engineering at Washington University and director of the university's Air Quality Laboratory, has performed an ambitious study of vehicular emissions in the St. Louis region. Emission measurements were taken for particles smaller than 2.5 micrometers in diameter, which is the size range for a standard issued by the U.S. Environmental Protection Agency (EPA) in 1997. Results from an urban interstate site and a nearby rural Illinois site that Turner surveyed indicate that an average urban vehicle, whether a motorcycle or diesel truck, emits between 30 to 40 milligrams of particulate matter per mile traveled; an average rural vehicle emits between 200 to 300 milligrams ppvm traveled. So much for fresh country air.

"We think there is much more heavy diesel traffic outside the city and there are greater road dust emissions in rural areas because of the proximity to open land, and those account for higher rural readings," Turner explains. Road dust is more than the simple dirt a vehicle stirs up as it moves along the road. Besides dirt from soil, road dust also contains the suspended fine particulate matter created from tail pipe emissions. It is a major significant component of vehicular air pollution that the medical profession and the EPA are paying strict attention to these days. Upper respiratory illnesses, cardiovascu
'"/>

Contact: Tony Fitzpatrick
tony_fitzpatrick@aismail.wustl.edu
314-935-5272
Washington University in St. Louis
18-Jan-2000


Page: 1 2 3 4

Related biology news :

1. Rural Residents Cooperative Response To Water Crisis Now A Model
2. Study of Cape Cod Seashore finds off-road vehicles harmful to beach fauna
3. Study suggests insect-derived antimicrobial peptides could be used as drug-delivery vehicles
4. Electric vehicles promise economic benefits in the billions
5. Unique fleet of underwater vehicles to gather elusive environmental data
6. New tool predicts how long pollutants will stay in soil
7. New space-borne instrument to track greenhouse gases, ozone destroyers, and other pollutants
8. Film found on windows after 9/11 reveals higher level of pollutants
9. New study begins to unravel fate of toxic pollutants harbored in Arctic waters
10. Novel bacterium detoxifies chlorinated pollutants
11. Mediterranean fishery recovers, thanks to manmade pollutants

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Road dust Rural vehicles emit more pollutants than urban ones

(Date:8/29/2014)... surprising discoveries about the body,s initial responses to ... team found that specialized cells in the intestine ... invasion and are the source of gut inflammation ... , Though aimed at the presence of ... that provides a barrier to protect the body ...
(Date:8/29/2014)... (Aug. 29, 2014) Scientists at the Barshop Institute ... of Medicine at the UT Health Science Center at ... the tissues of the longest-lived rodent, the naked mole ... the cells of naked mole rats protects and alters ... damaged and obsolete proteins. , The factor also protects ...
(Date:8/29/2014)... recently, little has been known about what genetic changes ... of scientists, one of whom is a University of ... that genes controlling the development of the brain and ... The study was published Aug. 28 in Science ... is online at http://www.sciencemag.org/ ., The domestication of ...
Breaking Biology News(10 mins):The early cost of HIV 2Factor in naked mole rat's cells enhances protein integrity 2New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3
(Date:8/28/2014)... WA (PRWEB) August 28, 2014 Sterlitech ... Filtration’s polymeric membranes to its stable of products ... available molecular weight cut-offs and include membrane filters with ... steady increase in customer demand for our membrane process ... greater variety of flat sheet membranes,” explains Sterlitech President ...
(Date:8/28/2014)... new work by a Florida State University research team ... take your temperature, emit white light, and convert photon ... looks like a butterfly. , Biwu Ma, associate professor ... the FAMU-FSU College of Engineering, created the molecule in ... to discover that his creation has many other unique ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 A ... around the world is available from Strategic Consulting, ... companies. “ Industrial Microbiology Market Review, Fourth Edition: ... Market ” (IMMR—4) tracks and compares microbiology test ... North America, Europe and Asia, and forecasts future ...
(Date:8/28/2014)... PrimeSource Building Products, Inc., a leading ... to support their communication needs with the ... conferencing platform GlobalMeet powered by SoundConnect. The solution ... SoundConnect delivers award winning “results driven” business class ... be utilizing GlobalMeet powered by SoundConnect ...
Breaking Biology Technology:Sterlitech Corporation Enhances Its Selection of Flat Sheet Membrane Filters 2Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3PrimeSource Chooses SoundConnect as Collaboration Provider 2
Cached News: