Skip to main content
. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Sci Total Environ. 2011 Mar 22;409(11):2133–2142. doi: 10.1016/j.scitotenv.2011.02.025

Table A.

Source profile of PM2.5 in Bridgeport, Danbury, New Haven, and Springfield (Unit: μg/m3 for PM2.5 and ng/m3 for all elements)

Bridgeport
Regional Sulfur Motor Vehicles Road Dust Oil Combustion Sea Salt Estimated Measured %MRE
EC 150.8 458.6 119.5 147.9 10.4 887.2 932.3 4.8
Zn 1.2 10.5 1.1 1.4 0.0 14.3 14.9 4.4
Pb 0.6 1.8 0.2 0.3 0.0 2.9 3.4 13.8
Cu 0.6 2.2 0.4 0.1 0.0 3.3 3.9 13.7
Br 0.4 0.8 0.3 0.2 0.0 1.6 1.7 5.0
Si 6.1 6.0 34.9 1.7 0.0 48.8 53.4 8.7
Fe 16.4 43.6 34.1 4.0 1.1 99.2 103.5 4.1
Al 5.2 3.1 18.5 0.7 0.2 27.9 31.2 10.8
Ca 3.7 9.2 15.3 1.1 0.7 30.0 32.1 6.7
Ba 0.3 1.1 0.7 0.5 0.0 2.6 3.4 23.8
Ti 0.6 1.0 2.2 0.0 0.1 3.9 4.4 12.1
S 865.1 197.0 92.8 103.9 7.3 1266.1 1288.7 1.8
K 7.4 17.6 11.1 3.7 0.6 40.4 53.2 24.1
V 0.2 0.0 0.3 2.7 0.0 3.3 3.3 0.1
Ni 0.1 1.1 0.0 1.2 0.0 2.4 2.8 14.2
Na 68.5 7.7 34.2 20.9 10.8 142.1 147.0 3.3
Cl 0.0 0.0 0.0 0.0 11.7 11.7 12.2 4.3
PM2.5 5.5 4.2 1.2 1.8 0.2 12.7 13.4 5.2
Danbury
Regional Sulfur Motor Vehicles Road Dust Oil Combustion Sea Salt Estimated Measured %MRE
EC 75.0 459.1 113.7 46.1 3.0 696.9 728.0 4.3
Zn 0.1 11.2 1.4 0.9 0.2 13.7 14.6 6.0
Pb 0.7 1.4 0.5 0.1 0.1 2.7 3.2 13.7
Cu 0.2 1.8 0.6 0.0 0.0 2.6 3.3 20.6
Br 0.4 0.6 0.3 0.2 0.0 1.6 1.7 8.3
Si 5.6 0.2 45.1 0.9 0.3 52.0 56.0 7.1
Fe 9.9 22.6 34.3 0.2 0.8 67.8 71.1 4.6
Al 5.4 1.0 22.4 0.0 0.3 29.1 31.7 8.1
Ca 2.1 7.6 16.7 0.1 1.0 27.6 29.0 4.9
Ba 0.2 0.4 0.7 0.0 0.0 1.3 1.7 22.6
Ti 0.7 0.4 2.5 0.0 0.1 3.7 4.2 12.3
S 956.9 105.4 148.6 26.7 20.0 1257.6 1273.1 1.2
K 7.0 20.0 15.4 2.3 1.5 46.1 58.1 20.7
V 0.1 0.2 0.1 1.8 0.0 2.2 2.2 0.1
Ni 0.1 0.4 0.0 1.1 0.0 1.7 2.0 16.3
Na 72.2 2.5 23.7 15.0 11.0 124.3 128.5 3.3
Cl 0.0 0.0 0.0 0.0 5.8 5.8 5.9 0.7
PM2.5 6.1 3.3 2.0 0.6 0.3 12.3 13.2 6.2
New Haven
Regional Sulfur Motor Vehicles Road Dust Oil Combustion Sea Salt Estimated Measured %MRE
EC 339.4 629.2 687.2 123.0 9.6 1788.3 1987.7 10.0
Zn 1.8 16.3 2.3 1.5 0.2 22.1 22.5 1.9
Pb 1.1 2.1 0.7 0.3 0.0 4.3 4.8 10.8
Cu 1.2 1.6 2.6 0.4 0.0 5.7 6.2 6.8
Br 0.7 0.9 0.0 0.1 0.1 1.8 1.9 4.4
Si 11.4 1.1 91.3 0.0 2.6 106.4 116.9 9.0
Fe 26.6 30.3 140.7 12.6 2.9 213.1 218.8 2.6
Al 11.3 0.0 47.1 0.3 1.9 60.6 67.4 10.2
Ca 4.9 8.5 33.5 0.9 1.7 49.5 51.1 3.1
Ba 1.4 1.1 7.1 1.0 0.0 10.6 12.3 13.9
Ti 1.2 0.4 4.8 0.1 0.2 6.7 7.2 7.6
S 1014.9 180.8 146.7 94.1 10.9 1447.3 1452.3 0.3
K 11.8 16.7 16.9 1.3 1.4 48.1 53.3 9.8
V 0.6 0.5 0.4 8.0 0.1 9.5 9.9 3.6
Ni 0.2 0.8 0.3 3.5 0.1 4.8 5.2 6.1
Na 73.8 17.5 45.2 3.8 31.5 171.8 180.9 5.0
Cl 0.0 0.1 0.1 0.3 29.2 29.7 29.6 0.5
Mn 0.6 1.2 2.4 0.0 0.1 4.3 4.5 4.4
PM2.5 7.1 5.0 2.9 1.4 0.4 16.8 17.0 0.9
Springfield
Regional Sulfur Motor Vehicles Road Dust Oil Combustion Sea Salt Estimated Measured %MRE
EC 105.7 329.3 64.3 101.4 0.0 600.6 645.1 6.9
Zn 1.2 12.4 0.7 2.7 0.2 17.2 17.5 1.5
Pb 0.7 2.0 0.5 0.4 0.0 3.7 4.2 12.4
Cu 0.2 1.3 0.3 0.2 0.1 2.1 2.5 16.5
Br 0.4 0.7 0.3 0.4 0.0 1.9 2.1 9.8
Si 4.3 1.3 35.9 3.6 0.5 45.5 48.6 6.4
Fe 8.0 29.8 28.8 1.0 1.2 68.8 73.8 6.7
Al 4.4 0.0 17.4 2.3 0.4 24.6 26.6 7.7
Ca 2.3 7.1 11.9 1.2 1.0 23.4 24.9 5.7
Ti 0.4 0.7 2.1 0.0 0.1 3.3 3.7 9.3
S 658.6 149.1 84.7 127.2 2.8 1022.5 1069.4 4.4
K 6.4 17.1 11.8 11.1 0.5 46.9 51.3 8.5
V 0.1 0.2 0.1 2.7 0.0 3.1 3.1 1.1
Ni 0.0 0.5 0.0 1.4 0.1 2.0 2.2 11.6
Na 53.2 17.9 11.2 14.0 8.6 104.8 109.7 4.4
Cl 0.0 0.0 0.0 0.0 15.1 15.1 15.1 0.2
PM2.5 4.7 3.6 1.4 2.2 0.1 12.0 13.0 7.5