Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling

Thumbnail image of item number 1 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.
Thumbnail image of item number 2 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.
Thumbnail image of item number 3 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.
Thumbnail image of item number 4 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.
Showing 1-4 of 10 pages in this report.

PDF Version Also Available for Download.

Description

There are few reliable data on the speciation of Hg in ambient air, although this information is critical to understanding the fate of Hg once released from point sources. The water soluble species of Hg that are thought to exist in flue gases would be subject to far greater local removal rates than is elemental Hg vapor, but methods are lacing to quantify this species. The authors developed a method using refluxing mist chambers to measure the airborne concentrations of reactive gaseous mercury (RGM) in short-term samples under ambient conditions. The method exhibits an effective detection limit of 0.02 ng/m{sup ... continued below

Physical Description

8 p.

Creation Information

Lindberg, S. E.; Stratton, W. J.; Pai, P. & Allan, M. A. December 31, 1997.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Authors

  • Lindberg, S. E. Oak Ridge National Lab., TN (United States). Environmental Sciences Div.
  • Stratton, W. J. Earlham Coll., Richmond, IN (United States). Dept. of Chemistry
  • Pai, P. Atmospheric and Environmental Research, San Ramon, CA (United States)
  • Allan, M. A. Electric Power Research Inst., Palo Alto, CA (United States)

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

There are few reliable data on the speciation of Hg in ambient air, although this information is critical to understanding the fate of Hg once released from point sources. The water soluble species of Hg that are thought to exist in flue gases would be subject to far greater local removal rates than is elemental Hg vapor, but methods are lacing to quantify this species. The authors developed a method using refluxing mist chambers to measure the airborne concentrations of reactive gaseous mercury (RGM) in short-term samples under ambient conditions. The method exhibits an effective detection limit of 0.02 ng/m{sup 3} and a precision for ambient concentration levels of {+-}20--30%. Using a model that simulates atmospheric transport and fate of anthropogenic mercury emissions over the contiguous United States, the authors generated 24-hr RGM concentrations to compare to the measurement data. The average RGM concentrations measured with their mist chambers at sites in Tennessee (TN) and Indiana (IN) were 0.065 ng/m{sup 3} and 0.100 ng/m{sup 3}, respectively. These averages represent about 3% of total gaseous mercury (TGM), and RGM generally exceeds regional particulate Hg. The 24-hr model-simulated RGM concentration averages in the modeling grid cells representing TN and IN are 0.051 ng/m{sup 3} and 0.098 ng/m{sup 3} respectively, in good agreement with the data. The measured concentrations at the two sites exhibit weak positive correlations with temperature, solar radiation, O{sub 3}, SO{sub 2}, and TGM. These concentrations are high enough to suggest that RGM can play an important role in both wet and dry deposition on a regional scale.

Physical Description

8 p.

Notes

OSTI as DE99000304

Source

  • Electric Power Research Institute (EPRI) conference, Washington, DC (United States), 1 Sep 1997

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Other: DE99000304
  • Report No.: ORNL/CP--99813
  • Report No.: CONF-9709302--
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/296860 | External Link
  • Office of Scientific & Technical Information Report Number: 296860
  • Archival Resource Key: ark:/67531/metadc685250

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

About | Browse this Collection

What responsibilities do I have when using this report?

Digital Files

When

Dates and time periods associated with this report.

Creation Date

  • December 31, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

Description Last Updated

  • Nov. 3, 2016, 6:51 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 2
More Statistics

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.
Thumbnail image of item number 2 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.
Thumbnail image of item number 3 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.
Thumbnail image of item number 4 in: 'Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Lindberg, S. E.; Stratton, W. J.; Pai, P. & Allan, M. A. Concentrations of a water soluble, gas-phase mercury species in ambient air: Results from measurements and modeling, report, December 31, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc685250/: accessed April 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.