Featured Research

from universities, journals, and other organizations

Crude Oil Contains Less Toxic Mercury Than Coal

Date:
June 19, 2007
Source:
American Chemical Society
Summary:
A 4-year study of mercury in crude oil refined in the United States has found that, of the two major sources of U.S. fossil energy mined coal and crude oil crude oil contains much less toxic mercury, on average, than coal.

A 4-year study of mercury in crude oil refined in the United States has found that, of the two major sources of U.S. fossil energy mined coal and crude oil crude oil contains much less toxic mercury, on average, than coal.

S. Mark Wilhelm and colleagues point out that extensive studies had been done on mercury in coal, the nation's other major fuel. Coal is the largest source of human-generated mercury emissions in the United States. Coal-fired power plants released about 48 tons of mercury annually, according to U. S. Environmental Protection Agency (EPA) data, a figure that would drop to 15 tons annually with implementation of new clean air regulations.

However, the amount of mercury present in crude oil, and thus potentially released into the air in automobile exhaust and other sources, remained uncertain due to a lack of accurate mercury concentration data for the wide range of crude oils produced domestically and imported into the U. S., the study noted.

To understand the mean concentration of mercury in oil processed by U.S. refineries, EPA employed two independent laboratories, each using different pre-qualified methods, to analyze oil streams arriving at U.S. refineries by tanker or pipeline. The samples included oil from the U. S. and 20 foreign countries. The total amount of mercury in crude oil processed in the U. S. annually is less than five percent of the amount contained in U. S. coal produced annually, the study concluded.

The article, "Mercury in Crude Oil Processed in the United States," is scheduled for publication in the July 1 issue of ACS Environmental Science & Technology.


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. "Crude Oil Contains Less Toxic Mercury Than Coal." ScienceDaily. ScienceDaily, 19 June 2007. <www.sciencedaily.com/releases/2007/06/070618091252.htm>.
American Chemical Society. (2007, June 19). Crude Oil Contains Less Toxic Mercury Than Coal. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2007/06/070618091252.htm
American Chemical Society. "Crude Oil Contains Less Toxic Mercury Than Coal." ScienceDaily. www.sciencedaily.com/releases/2007/06/070618091252.htm (accessed August 20, 2014).

Share This




More Matter & Energy News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

AFP (Aug. 19, 2014) A solar cell that resembles a flower is offering a new take on green energy in Japan, where one scientist is searching for renewables that look good. Duration: 01:29 Video provided by AFP
Powered by NewsLook.com
Tiny Satellites, Like The One Tossed From ISS, On The Rise

Tiny Satellites, Like The One Tossed From ISS, On The Rise

Newsy (Aug. 18, 2014) The Chasqui I, hand-delivered into orbit by a Russian cosmonaut, is one of hundreds of small satellites set to go up in the next few years. Video provided by Newsy
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:
from the past week

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