Ethylene glycol final content: appendix D


Appendix D: Management of Ethylene Glycol at Canadian Airports

Management of ethylene glycol at Canadian airports was discussed at some length in the State of the Science Report (Environment Canada and Health Canada, 2000). Some recent improvements in the handling and release of ethylene glycol have been mentioned in the present report.

Data on groundwater concentrations of ethylene glycol are very limited, but some pre-2000 measurements were taken at Calgary International, Charlottetown, Montréal International (Dorval and Mirabel) and Ottawa Macdonald-Cartier International airports. These data are summarized in Table 14 below, along with data obtained from the Edmonton International Airport.

Table 15 presents concentrations of total glycol at selected monitoring stations at Canadian airports for the 2004-2005 deicing season.

Table 14: Concentrations of Ethylene Glycol in Groundwater Sampled at Canadian AirportsFootnote a
Airport Sampling Dates Number of Samples Detection Limit (mg/L) Median (mg/L) Mean (mg/L) Maxi-
mum (mg/L)
Reference
Calgary International 4 Oct.1996-28 Jul. 1999 17 5 <DL 4 38 CAA 1999
Montréal- Trudeau 13 Nov. 1997-25 May 1998 20 0.5 1.3 8 32 Aéroports de Montréal 1998
Montréal- Mirabel 28 Nov. 1997-6 Jul. 1999 5 6 <DL <DL 49 Aéroports de Montréal 1999
Ottawa MacDonald- Cartier International Dec. 1985-Dec.1986 ? 5 <DL <DL 415 Transport Canada 1987
Edmonton International Mar. - Sept. 2002 8 5 <5 <5 <5 Transport Canada 2003

 

Table 15: Concentrations of Total Glycol Sampled at Selected Monitoring Stations of Canadian Airports for the 2004-2005 Deicing Season
Airport Sampling Dates within Deicing Season Site Number of Samples Detec-
tion Limit (mg/L)
Mean (mg/L) Median (mg/L) Maxi-
mum (mg/L)
Number of Samples > 100 mg/L
Moncton 4 Nov. 2004-24 Mar. 2005 4 19   4 0 80 0
Moncton 4 Nov. 2004-24 Mar. 2005 6 19   13 0 >120 2
Moncton 4 Nov. 2004-24 Mar. 2005 8 19   9 0 120 2
Charlotte-
town
1 Oct. 2004-15 May 2005   7   0 0 0 0
Charlotte-
town
14 Dec. 2004 - 5 Apr. 2005 Not indicated 6 No numerical data        
Saint John 27 Oct. 2004-7 Apr. 2005 Not indicated 14   Na na >100 1
Montréal-Trudeau 2 Nov. 2004-26 Apr. 2005 Centre de dégivrage (PE-2) 203 10 49 53 97.5 0
Montréal-Trudeau 2 Nov. 2004-26 Apr. 2005 Aviation générale (R: ethylene glycolegard Whitewind) 11 10 <10 <10 20 0
Montréal-Trudeau 2 Nov. 2004-26 Apr. 2005 Aviation générale (R: ethylene glycolegard Skyservice) 16 10 22 11 146 1
Montréal-Trudeau 2 Nov. 2004-26 Apr. 2005 Aviation générale (R: ethylene glycolegard Exécaire) 17 10 17 <10 124 1
Montréal-Trudeau 2 Nov. 2004-26 Apr. 2005 Exutoir Bouchard (DP-1) 19 10 51 42 136 3
Montréal-Mirabel 2 Nov. 2004-26 Apr. 2005 Centre de dégivrage 82 10 40 <10 590 5
Montréal-Mirabel 2 Nov. 2004-26 Apr. 2005 Zone cargo 2 10 <10 <10 <10 0
Montréal-Mirabel 2 Nov. 2004-26 Apr. 2005 Site Cyr 2 10 <10 <10 <10 0
Québec-Jean-Lesage 1 Mar. 2005-31 Mar. 2005 Station CA 4   78 67 130 1
Québec-Jean-Lesage 1 Mar. 2005-31 Mar. 2005 Station 24 8   77 66 198 3
London 9 Nov. 2004-15 Apr. 2005   8 4 <4 <4 <4 0
Ottawa 11 Nov. 2004-2 Jun. 2005 S3 13   0 N/D N/D 0
Ottawa 11 Nov. 2004-2 Jun. 2005 G1 16   0 N/D N/D 0
Ottawa 11 Nov. 2004-2 Jun. 2005 S4 109   2 N/D 162 1
Ottawa 11 Nov. 2004-2 Jun. 2005 G11 1   0 N/D N/D 0
Ottawa 11 Nov. 2004-2 Jun. 2005 S9 110   5 N/D 172 2
Toronto 1 Oct. 2004-30 Apr. 2005 Carlingview Stormwater Facility 178 4 4 <4 32 0
Toronto 1 Oct. 2004-30 Apr. 2005 Etobicoke Creek Stormwater Facility 60 4 16 <4 129 2
Toronto 1 Oct. 2004-30 Apr. 2005 Moore's Creek Stormwater Facility 155 4 4 <4 105 6
Toronto 1 Oct. 2004-30 Apr. 2005 Water Monitoring Station WM4A 177 4 10 <4 287 3
Edmonton 2 Jan. 2004-15 Oct. 2004 Subsurface Wetlands Inlet 16 5 7 8 11 0
Edmonton 2 Jan. 2004-15 Oct. 2004 Subsurface Wetlands Outlet 5 5 13 8 33 0
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