alexa Use Of Passive Sampling Methods To Understand Sources Of Mercury And Other Pollutants To High Elevation Sites In The Western United States
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)

Share This Page

Additional Info

Loading
Loading Please wait..
 

3rd International Conference on Earth Science & Climate Change
July 28-30, 2014 DoubleTree by Hilton Hotel San Francisco Airport, USA

Jiaoyan Huang and Mae Sexauer Gustin
Workshops: J Earth Sci Clim Change
DOI: 10.4172/2157-7617.S1.014
Abstract
Passive samplers have been used for atmospheric gaseous oxidized mercury (GOM) concentration and dry deposition measurements over the last decade; however, there are still uncertainties associated with these methods. This study investigated GOM ambient air concentrations and dry deposition at 10 sites in the Western United States (US) using passive samplers, and compared GOM dry deposition with multiple-resistance modeled values. Higher GOM concentrations and dry deposition were measured at 5 high elevation sites (>2000 m) relative to those at 4 low elevation sites (<2000 m) (n=5-27 depending on the site), except for one that was located in a topographic bowl. High dry deposition was due to the high wind speed, increasing turbulence and interaction with surfaces, and input from the free troposphere at high elevation sites. High GOM events at the two most frequently and consistently sampled high elevation sites (Peavine Peak and Angle Peak) showed contributions from urban boxes (Las Vegas and Los Angeles) and the marine boundary layer; however, spring events showed high values associated with Asian long range transport, determined using back trajectories analysis. Meteorological data at these two sites were extracted from EDAS 40 km, and multiple-resistance models were used to estimate the dry deposition velocity. The GOM dry deposition velocity at this two sites was ~2.2 cm/s without canopy resistance; however, the velocities were ~0.4 and 0.90 cm/s as α=β=2 and α=β=10, respectively. Using the GOM dry deposition fluxes were measured by aerohead at these two sites that ranged from 2.3 to 2.9 ng/m2/hr. Using this information average ambient air concentrations at these two sites was calculated and was found to be 30-200 pg m -3 depending upon the canopy resistance
Biography
Jiaoyan Huang is an atmospheric pollution Scientist at the University Nevadahas conducted ambient air monitoring, dispersion, and receptor modeling for dioxin, mercury, aerosol, and other trace gaseous at multiple sites, and has developed new methods for measurement of ambient air Hg dry deposition and GOM concentrations. He earned his PhD degree in Civil and Environmental Engineering at Clarkson University
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 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords