Results 241 to 250 of about 473,506 (276)
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Atmospheric gaseous elemental mercury in downtown Toronto

Atmospheric Environment, 2006
Abstract Continuous measurements of gaseous elemental mercury (GEM) in downtown Toronto were conducted from June 2001–February 2002. Ambient air was sampled at 3.5 and 7 m above ground in a canopy over a sidewalk. The quarter hourly mean concentrations were found at 2.39±2.05 ng m −3 ( N =10,658) for the lower sampling level, and 2.57±2.39 ng m −3 (
Xinbin Feng, Julia Y Lu
exaly   +2 more sources

Measurement of Particulate Bound Mercury, Gaseous Elemental Mercury, and Reactive Gaseous Mercury Concentrations by Using an Ambient Air Mercury Collection System

Environmental Forensics, 2015
In this investigation, the concentrations of gaseous elemental mercury (GEM), reactive gaseous mercury (RGM) and particulate bound mercury (PBM) in ambient air were measured at the Hung Kuang (traffic) sampling site during September 27 to October 6, 2014.
Yuan-Jie Zhuang, Yu-Chen Kuo
exaly   +2 more sources

Gaseous Elemental Mercury (GEM) in downtown Toronto

open access: yesJournal de Physique IV (Proceedings), 2003
Gaseous elemental mercury (GEM) concentrations in downtown Toronto, Canada were monitored from June 2001 - February 2002 at two levels (3.5 and 7m) above the ground.
Y. Lu Julia, M. St Denis, X. Feng
openaire   +2 more sources

Gaseous Elemental Mercury as an Indoor Air Pollutant

Environmental Science & Technology, 2001
Mercury is not commonly considered a household air pollutant; however, a number of potential sources of the metal exist in residential settings. Eleven of 12 indoor sites sampled in this study showed levels of airborne mercury that were significantly elevated over outdoor concentrations (range 6.5-523 ng m(-3)).
CARPI, ANGELO, Chen YF
openaire   +3 more sources

Removal of gaseous elemental mercury by modified diatomite

Science of The Total Environment, 2019
Novel adsorbents with low cost and high efficiency that do not produce secondary pollutants are vital for removing gaseous elemental mercury (Hg0) from coal-fired power plants. In this study, eight diatomite-based adsorbents were developed and used to remove Hg0 in a bench-scale fixed-bed reactor. The effects of active substances, reaction temperature,
Huan, Liu   +4 more
openaire   +2 more sources

Oxidation of Gaseous Elemental Mercury to Gaseous Divalent Mercury during 2003 Polar Sunrise at Ny-Alesund

Environmental Science & Technology, 2005
The springtime phenomenon, termed as the mercury depletion event (MDE), during which elemental gaseous mercury (Hg0) may be converted to a reactive form that accumulates in polar ecosystems, first noted in the Arctic, has now been observed at both poles and results in an important removal pathway for atmospheric mercury.
Sprovieri F   +3 more
openaire   +3 more sources

Removal of gaseous elemental mercury by dielectric barrier discharge

Chemosphere, 2007
The removal of elemental mercury (Hg(0)) with the reactive species produced from dielectric barrier discharge (DBD) was studied. The effects of the operating parameters, such as the applied voltage, residence time, initial concentration and co-existence of other pollutants, were investigated.
Juyoung, Jeong, Jongsoo, Jurng
openaire   +2 more sources

Oxidation of gaseous elemental mercury in a high voltage discharge reactor

Journal of Environmental Sciences, 2009
Effects of the voltage waveform, discharge tooth wheel number and CO2/NO/SO2 concentration in the simulated flue gas on Hgo oxidation were investigated using a link tooth wheel-cylinder reactor energized by different high voltage power supplies. Negative DC discharge induced more ozone production and a higher Hg0 oxidation efficiency than positive DC ...
Meiyan, Wang   +4 more
openaire   +2 more sources

Spatial and temporal distribution of gaseous elemental mercury in Chongqing, China

Environmental Monitoring and Assessment, 2008
In order to investigate the spatial and temporal variability of atmospheric mercury (Hg) in Chongqing, China, gaseous elemental mercury (GEM) was measured from August 2006 to September 2007, using Lumex multifunctional mercury analyzer RA-915(+) (Lumex Ltd., Russia).
Yongkui, Yang   +2 more
openaire   +2 more sources

Isotopic Characterization of Atmospheric Gaseous Elemental Mercury by Passive Air Sampling

Environmental Science & Technology, 2020
Tracing emission sources and transformations of atmospheric mercury with Hg stable isotopes depends on the ability to collect amounts sufficient for reliable quantification. Commonly employed active sampling methods require power and long pumping times, which limits the ability to deploy in remote locations and at high spatial resolution and can lead ...
Natalie Szponar   +8 more
openaire   +3 more sources

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