3
TABLE 20
A 3-Year Summary of  PM  (µg/m ) for Windsor-West
10
3
PM  24-hour interim AAQC is 50 µg/m
10
Station
1998
1999
2000
(A)
(B)
(C)
(A)
(B)
(C)
(A)
(B)
(C)
Windsor West
36
302
83
15
247
79
9
307
78.2
(College)
(A) Number of  hours above AAQC  (B) 1-hour max  (C) 24-hour max
Fine/Respirable
2.1.3
Additional Ambient Monitoring Station
Targeting the Air Quality Issues linked
)
Particulate Matter (PM
2.5
with Transportation
In 1999, a real-time respirable particulate (PM ) moni-
2.5
Ambient air monitoring near the Ambassador Bridge in
toring program was initiated at the Riverside Dr.
Windsor is being undertaken by the Air Quality Group
(Tecumseh Water Treatment Plant) site with a TEOM
at the Ontario Ministry of  Environment Southwestern
analyzer.  The annual mean of  the 24-hour measurement
3
3
Regional Office.  Using a portable monitor at three
for 1999 was 13.8 µg/m ; in 2000, it was 9.8 µg/m .
locations near the bridge, measurements of  the levels of
particulate matter (PM , PM  and PM ) and benzene
During 1999, the highest 1-hour average recorded was
10
2.5
1
3
are obtained.  Measurements will be incorporated into a
140 µg/m , and the highest 24-hour average was 68 µg/
3
model developed to predict local air quality based on
m .  In 2000, the highest 1-hour average concentration
3
traffic conditions.
was 83 µg/m  and the highest 24-hour average was 42
3
µg/m .
3
In 1999 and 2000, the 24-hour benchmark of  30 µg/m
would have been exceeded on 22 days and three days
respectively.  Partial, unconfirmed data from the
Windsor Downtown site indicate that there were seven
3
days in 2001 and 10 days in 2002, that exceed 30 µg/m
from a 24-hour averaging period.
TABLE 21
A 2-Year Summary of  Respirable Particles (PM )
2.5
3
PM  24-hour proposed (2010) Canada-Wide Standard is 30 µg/m
2.5
Station
1999
2000
2001
2002
(A)
(B)
(C)
(A)
(B)
(C)
(A)
(A)
Windsor (Riverside) -
22
140
68
3
83
42
7
10
Tecumseh Water
Treatment Facility
3
3
(A) Number of  days above 24h CWS - applied as a benchmark
(B) 1 hour - max µg/m           (C) 24 hour - max µg/m
26