Featured Research

from universities, journals, and other organizations

Coal Tar-based Pavement Sealers Implicated As A Source Of Urban Water Pollution

Date:
February 13, 2007
Source:
American Chemical Society
Summary:
A water pollution episode in Austin, Texas, is raising questions about the environmental impact of coal tar-based sealants used on thousands of parking lots throughout the United States, according to an article in Chemical and Engineering News.

A water pollution episode in Austin, Texas, is raising questions about the environmental impact of coal tar-based sealants used on thousands of parking lots throughout the United States, according to an article scheduled for the Feb. 12 issue of Chemical & Engineering News (C&EN), the American Chemical Society's weekly newsmagazine.

Related Articles


In the article, C&EN senior editor Cheryl Hogue explains that the episode involved polycyclic aromatic hydrocarbon (PAH) pollution found near a popular Austin swimming spot. Consisting of more than 100 compounds, including several suspected human carcinogens, PAHs originate in numerous sources including the coal tar used in asphalt sealants — mainly those sold to commercial applicators.

After scientists linked the Austin PAH pollution to runoff from coal tar-based sealant applied to an apartment building parking lot, the city of Austin banned sale of these coatings. Municipalities in Wisconsin and Florida are considering a similar ban, and two major retailers, The Home Depot and Lowe's, have discontinued sale of coal tar-based sealants, the article states.

Manufacturers of coal tar-based sealcoats dispute the link, maintaining that Austin officials were premature in instituting the ban following publication of research in 2005 in the ACS journal, Environmental Science & Technology about the source of the Austin pollution. Manufacturers claim that most PAHs in Austin waterways originate from the city's highways, which collect PAHs from motor vehicle exhaust, tire wear and oil drips, the article adds.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "Coal Tar-based Pavement Sealers Implicated As A Source Of Urban Water Pollution." ScienceDaily. ScienceDaily, 13 February 2007. <www.sciencedaily.com/releases/2007/02/070212101900.htm>.
American Chemical Society. (2007, February 13). Coal Tar-based Pavement Sealers Implicated As A Source Of Urban Water Pollution. ScienceDaily. Retrieved April 2, 2015 from www.sciencedaily.com/releases/2007/02/070212101900.htm
American Chemical Society. "Coal Tar-based Pavement Sealers Implicated As A Source Of Urban Water Pollution." ScienceDaily. www.sciencedaily.com/releases/2007/02/070212101900.htm (accessed April 2, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Thursday, April 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Voice-Controlled GPS Helmet to Help Bikers

Voice-Controlled GPS Helmet to Help Bikers

Reuters - Innovations Video Online (Apr. 1, 2015) — Motorcyclists will no longer have to rely on maps or GPS systems, both of which require riders to take their eyes off the road, once a new Russian smart helmet goes on sale this summer. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Kashmir Mops Up After Heavy Flooding

Kashmir Mops Up After Heavy Flooding

AFP (Apr. 1, 2015) — The clean-up operation is in full swing in Indian Kashmir after heavy rain triggered flooding around the mountainous region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
California Unveils Historic Water Restrictions Over Drought

California Unveils Historic Water Restrictions Over Drought

AFP (Apr. 1, 2015) — California announced sweeping state-wide water restrictions for the first time in history Wednesday in order to combat the region&apos;s devastating drought, the worst since records began. Duration: 00:36 Video provided by AFP
Powered by NewsLook.com
Space Station Captures Images of Massive Typhoon

Space Station Captures Images of Massive Typhoon

Reuters - News Video Online (Apr. 1, 2015) — Images from the International Space Station show a massive typhoon forming as the Philippines warns residents to be ready for super typhoon "Maysak." Display (no reporter narration). Video provided by Reuters
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