Featured Research

from universities, journals, and other organizations

Vehicle Traffic Associated With Increased Carcinogen Levels; Findings Could Aid Cancer Risk Assessment For Urban Communities

Date:
June 10, 2003
Source:
Johns Hopkins University Bloomberg School Of Public Health
Summary:
Assessing a community's cancer risk could be as simple as counting the number of trucks and cars that pass through the neighborhood. Researchers from the Johns Hopkins Bloomberg School of Public Health have identified a significant association between vehicle traffic and curbside concentrations of carcinogens benzene, 1,3-butadiene and particle-bound polycyclic aromatic hydrocarbons (PAH).

Assessing a community's cancer risk could be as simple as counting the number of trucks and cars that pass through the neighborhood. Researchers from the Johns Hopkins Bloomberg School of Public Health have identified a significant association between vehicle traffic and curbside concentrations of carcinogens benzene, 1,3-butadiene and particle-bound polycyclic aromatic hydrocarbons (PAH). The findings may be especially relevant for urban communities where people live in close proximity to high volume roadways. The study is published in the June 2003 issue of the Journal of the Air & Waste Management Association. "Mobile source emissions present a unique public health threat," said Timothy Buckley, PhD, senior author of the study and professor with the School's department of Environmental Health Sciences. "This study provides a unique, real world assessment of the relationship between traffic volume, vehicle class, the weather and curbside concentration of carcinogens. Our findings give us a basis for assessing the public health gains from alternate fuels, control technologies or, best of all, the removal of traffic emissions from our neighborhoods through non-fossil fuel mass transit."

Related Articles


Dr. Buckley and doctoral student Amir Sapkota measured levels of the carcinogens benzene, 1,3-butadiene and PAHs at a tollbooth at Baltimore's Harbor Tunnel over a one week period. Meteorological information and traffic data were also collected and analyzed. Results showed that pollution levels varied 6 to 20 fold depending on both traffic volume and the type of vehicle. The lowest levels were recorded in the middle of the night and the highest levels occurred with the morning rush hour.

Larger vehicles with more than two axles, such as buses, motor homes, and tractor trailers, were found to emit 60 times more PAHs, 32 times more 1,3-butadiene and nine times more benzene compared to smaller vehicles with just two axles. The researchers suggest that the increased emissions associated with the larger vehicles are due in part to the diesel engines that more likely power these larger vehicles.

"In Baltimore's urban communities as with many other U.S cities, many people live in close proximity to busy streets. What's more, in many communities, the curbside stoop provides a venue for socialization, recreation or relief from the summer heat, exacerbating their exposure potential. The models we created from this study may be useful for evaluating exposure, risk and control strategies in theses urban environments," said Dr. Buckley.

###

"The Mobile Source Effect on Curbside 1,3-Butadiene, Benzene and Particle-Bound Polycyclic Aromatic Hydrocarbons Assessed at a Tollbooth" was written by Amir Sapkota and Timothy J. Buckley.

Research was supported by grants from the Johns Hopkins Education and Research Center Pilot Project Research Training Fund, National Institutes of Environmental Health Sciences and Environmental Protection Agency.


Story Source:

The above story is based on materials provided by Johns Hopkins University Bloomberg School Of Public Health. Note: Materials may be edited for content and length.


Cite This Page:

Johns Hopkins University Bloomberg School Of Public Health. "Vehicle Traffic Associated With Increased Carcinogen Levels; Findings Could Aid Cancer Risk Assessment For Urban Communities." ScienceDaily. ScienceDaily, 10 June 2003. <www.sciencedaily.com/releases/2003/06/030610081041.htm>.
Johns Hopkins University Bloomberg School Of Public Health. (2003, June 10). Vehicle Traffic Associated With Increased Carcinogen Levels; Findings Could Aid Cancer Risk Assessment For Urban Communities. ScienceDaily. Retrieved November 24, 2014 from www.sciencedaily.com/releases/2003/06/030610081041.htm
Johns Hopkins University Bloomberg School Of Public Health. "Vehicle Traffic Associated With Increased Carcinogen Levels; Findings Could Aid Cancer Risk Assessment For Urban Communities." ScienceDaily. www.sciencedaily.com/releases/2003/06/030610081041.htm (accessed November 24, 2014).

Share This


More From ScienceDaily



More Earth & Climate News

Monday, November 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

3D Map of Antarctic Sea Ice to Shed Light on Climate Change

3D Map of Antarctic Sea Ice to Shed Light on Climate Change

Reuters - Innovations Video Online (Nov. 24, 2014) A multinational group of scientists have released the first ever detailed, high-resolution 3-D maps of Antarctic sea ice. Using an underwater robot equipped with sonar, the researchers mapped the underside of a massive area of sea ice to gauge the impact of climate change. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
Car Park Solution for Flexible Green Energy

Car Park Solution for Flexible Green Energy

Reuters - Innovations Video Online (Nov. 24, 2014) A British solar power start-up says that by covering millions of existing car park spaces around the UK with flexible solar panels, the country's power problems could be solved. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Deadly Japanese Pufferfish Discovered in Crimean Waters

Deadly Japanese Pufferfish Discovered in Crimean Waters

Reuters - Light News Video Online (Nov. 24, 2014) The capture of deadly Japanese pufferfish in the waters of Crimea is causing concern for fishermen and scientists alike. Sharon Reich reports. Video provided by Reuters
Powered by NewsLook.com
Terrifying Black Seadevil Fish Captured on First-of-Its Kind Video

Terrifying Black Seadevil Fish Captured on First-of-Its Kind Video

Buzz60 (Nov. 24, 2014) An aquarium captures a first-of-its kind video of a notoriously camera-shy fish that’s also not so camera-friendly. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins