Atmospheric gaseous elemental mercury in downtown Toronto

被引：43

作者：

Denis, Monique St. ^{[1
]}

Song, Xinjie ^{[1
]}

Lu, Julia Y. ^{[1
]}

Feng, Xinbin ^{[1
]}

机构：

[1] Ryerson Univ, Dept Chem & Biol, Toronto, ON M5B 2K3, Canada

来源：

ATMOSPHERIC ENVIRONMENT | 2006年 / 40卷 / 21期

基金：

加拿大自然科学与工程研究理事会;

关键词：

mercury; atmosphere; gaseous elemental mercury (GEM); urban environment;

D O I：

10.1016/j.atmosenv.2005.07.078

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 in above ground in a canopy over a sidewalk. The quarter hourly mean concentrations were found at 2.39 +/- 2.05ng m(-3) (N=10,658) for the lower sampling level, and 2.57 +/- 2.39 ng m(-3) (N= 10,628) for the upper sampling level. The average of both sampling levels (2.48ng m(-3)) was 60% higher than the average of Canadian background emission (1.55 ng m(-3), Alert). Seasonal concentrations showed the effects of the temperature on the volatilization of Hg-0. Higher GEM was found in the summer time (20 June-19 September) at 3.03 +/- 2.13 ng m(-3) (lower level) and 3.31 +/- 2.56 ng m(-3) (upper level) while lower values were observed in the fall (20 September-19 December) at 1.84 +/- 0.87ng m(-3) (lower level) and 1.97 +/- 1.38ng m(-3) (upper level). Log normal probability distribution of the GEM concentration was verified and the double peak hourly average diurnal distribution of GEM concentration was observed in our study. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：4016 / 4024

页数：9

共 46 条

[1]

[Anonymous], 2021, ACCESSED, DOI [DOI 10.1016/S1352-2310(03)00235-8, DOI 10.1016/S0309-1740(03)00032-9]

[2] The Arctic: a sink for mercury [J].

Ariya, PA ;

Dastoor, AP ;

Amyot, M ;

Schroeder, WH ;

Barrie, L ;

Anlauf, K ;

Raofie, F ;

Ryzhkov, A ;

Davignon, D ;

Lalonde, J ;

Steffen, A .

TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY, 2004, 56 (05) :397-403

[3] Vertical distribution of gaseous elemental mercury in Canada [J].

Banic, CM ;

Beauchamp, ST ;

Tordon, RJ ;

Schroeder, WH ;

Steffen, A ;

Anlauf, KA ;

Wong, HKT .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2003, 108 (D9)

[4] Springtime depletion of mercury in the European Arctic as observed at Svalbard [J].

Berg, T ;

Sekkesæter, S ;

Steinnes, E ;

Valdal, AK ;

Wibetoe, G .

SCIENCE OF THE TOTAL ENVIRONMENT, 2003, 304 (1-3) :43-51

[5] Four years of continuous total gaseous mercury (TGM) measurements at sites in Ontario, Canada [J].

Blanchard, P ;

Froude, FA ;

Martin, JB ;

Dryfhout-Clark, H ;

Woods, JT .

ATMOSPHERIC ENVIRONMENT, 2002, 36 (23) :3735-3743

[6] Gaseous elemental mercury fluxes in New York City [J].

Carpi, A ;

Chen, YF .

WATER AIR AND SOIL POLLUTION, 2002, 140 (1-4) :371-379

[7] Trend and variability of total gaseous mercury (TGM) in the state of Connecticut, USA during 1997-1999 [J].

Chen, H ;

Yang, XS ;

Perkins, C .

WATER AIR AND SOIL POLLUTION, 2004, 151 (1-4) :103-116

[8] The toxicology of mercury [J].

Clarkson, TW .

CRITICAL REVIEWS IN CLINICAL LABORATORY SCIENCES, 1997, 34 (04) :369-403

[9] Influence of anthropogenic sources on total gaseous mercury variability in grenoble suburban air (France) [J].

Dommergue, A ;

Ferrari, CP ;

Planchon, FAM ;

Boutron, CF .

SCIENCE OF THE TOTAL ENVIRONMENT, 2002, 297 (1-3) :203-213

[10] AN INTENSIVE MULTISITE PILOT-STUDY INVESTIGATING ATMOSPHERIC MERCURY IN BROWARD COUNTY, FLORIDA [J].

DVONCH, JT ;

VETTE, AF ;

KEELER, GJ ;

EVANS, G ;

STEVENS, R .

WATER AIR AND SOIL POLLUTION, 1995, 80 (1-4) :169-178

← 1 2 3 4 5 →