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Environmental Forensics Volume 11, 2010 - Issue 1-2
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Contributed Articles

Sourcing Contributions of Gaseous Mercury in Indoor and Outdoor Air in China

Jing Li Chongqing Key Lab of Agricultural Resources and Environment, College of Environment and Resources, Southwest University, Chongqing, China
,
Yong Yang Chongqing Key Lab of Agricultural Resources and Environment, College of Environment and Resources, Southwest University, Chongqing, China
,
Hong Chen Chongqing Key Lab of Agricultural Resources and Environment, College of Environment and Resources, Southwest University, Chongqing, China
,
Guang-quan Xiao Chongqing Key Lab of Agricultural Resources and Environment, College of Environment and Resources, Southwest University, Chongqing, China
&
Shi-qiang Wei Chongqing Key Lab of Agricultural Resources and Environment, College of Environment and Resources, Southwest University, Chongqing, China
Pages 154-160 | Received 03 Apr 2009, Accepted 07 Nov 2009, Published online: 17 Mar 2010
 
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Abstract

Variations in indoor and outdoor total gaseous mercury (TGM) concentrations at nine residential locations in downtown Chongqing, China, were measured to identify possible sources and evaluate diurnal and seasonal fluctuations. Indoor TGM concentrations (eight buildings in summer and two in winter) were significantly elevated over outdoor concentrations. Diurnal and seasonal variations were identified, with most sites having higher concentrations in summer and at night. Overall, TGM concentrations were highly variable, likely as a result of changes in anthropogenic emissions (e.g., coal combustion, mobile sources, iron refinery), fluctuations in atmospheric variables, and unique events (e.g., use of mercury-containing skin cream, thermometer spill).

Notes

a: P < 0.05

b: P < 0.01. BR,; UV,; T, temperature; RH, WS.

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