alexa Air Mercury Speciation Accuracy And Calibration | 18547
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

Like us on:

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

3rd International Conference on Earth Science & Climate Change

Eric M Prestbo
Workshops: J Earth Sci Clim Change
DOI: 10.4172/2157-7617.S1.014
Abstract
Development and use of methods to measure atmospheric mercury speciation date back to the early 1980s. A major advancement occurred in the late 1990s when an automated, continuous system to measure gaseous oxidized mercury (GOM), particulate-bound mercury (PBM) and gaseous elemental mercury (GEM) was made available to researchers. The air mercury speciation system (Tekran Models 2537, 1130, 1135) was initially challenged by the USEPA and over the years by many research groups in field and lab studies, both with good results. The application of the air mercury speciation system resulted in observations that continued to build assurance that the mercury speciation system was generating high quality results. Examples of these will be presented, such as observation ofhigh GOM values in point-source emission plumes, higher PBM during winter months, increased GOM during polar GEM depletion events and highly elevated GOM concentrations in stable free tropospheric air. The air mercury speciation system detector (Tekran 2537) is routinely calibrated with a traceable GEM source to establish accuracy. Although there have been hundreds of high quality publications of atmospheric mercury speciation, one critical limitation has been the lack of traceable GOM and PBM standards at the picogram/m3(pg/m3) level. Recent studies have once again highlighted the need for field-deployable atmospheric mercury speciation standards to further improve estimates of accuracy. A brief review of attempts to develop standard GOM sources for air mercury speciation systems will be presented with an emphasis on the challenges of transport, stability and traceability. Lastly, a conceptual proposal for an automated GOM source for routine standard additions at the pg/m3level will be shown
image PDF   |   image HTML
 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2018-19
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

+1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2018 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
Leave Your Message 24x7