TABLE 30
Annual Mean PM  Concentrations by Individual Monitoring Station for
2.5
3
the Detroit PMSA, 1999-2001 (annual mean, rounded to nearest 0.1 µg/m )
Station
1999
2000
2001
Mean
New Haven
12.7
13.4
13.6
13.2
Oak Park
14.2
15.4
14.7
14.8
Southfield
Not Monitored
Not Monitored
17.1
*
Allen Park #1
16.7
15.6
17.3
16.5
Allen Park #2
19.6
16.0
16.2
17.3
W. Fort St.
17.7
18.1
18.3
18.0
Linwood
17.1
15.5
15.8
16.1
E. Seven Mile
Not Monitored
14.5
14.5
*
Livonia
13.1
14.6
14.6
14.1
Dearborn
17.0
20.1
19.6
18.9
Wyandotte
16.3
17.6
18.2
17.4
* need 3 years of data prior to calculating the mean
Source: MDEQ, 2003
2.2.2
Hazardous Air Pollutants
air as well as general characteristics of  air toxics in large
urban areas and small urban/rural areas throughout the
Monitoring for PM  Chemical Speciation
United States.  Many of  the air toxics monitored as part
2.5
of  this study are the same as those identified by the
Three chemical speciation monitors have been estab-
International Air Pollution Advisory Board for the
lished in the Detroit area.  One of these is a National
Detroit-Windsor/Port Huron-Sarnia Region as having
Air Monitoring Station (NAMS) trend chemical specia-
high levels of  concern due to their carcinogenic potential.
tion monitor site and the other two are chemical specia-
tion SPM, which will remain in operation for the
Monitoring began in 2001 and was to continue for 10
duration of  the Detroit Air Toxic Pilot Project.
to12 months.  The data collected from the Detroit
monitoring stations as well as the other nine cities
These monitors provide PM  chemical constituent
involved in the study are currently being analyzed and the
2.5
concentrations of: ammonium ion, antimony, arsenic,
results should be available in late 2003.
aluminum, beryllium, barium, bromine, cadmium,
calcium, chromium, cobalt, copper, chlorine, cerium,
cesium, europium, gallium, gold, hafnium, indium,
2.2.4
Comparison of  Detroit-Windsor Selected
iridium, iron, lanthanum, lead, manganese, magnesium,
Air Toxic Emissions (from Great Lakes
mercury, molybdenum, niobium, nitrate, organic and
Regional Air Toxic Emissions Inventory-
elemental carbon, phosphorus, potassium, rubidium,
1998)
samarium, scandium, selenium, silicon, silver, sodium,
strontium, sulfate, sulfur, tin, tantalum, terbium, tita-
The Great Lakes Regional Air Toxics Emissions Inven-
nium, vanadium, yitrium, wolfram, zinc, and zirconium.
tory (GLRATEI) tracks the release of  selected hazardous
toxic contaminants from point sources, area sources and
mobile sources and makes it publically available at a
2.2.3
Detroit Air Toxics Pilot Project
county level.  The GLRATEI  for the 1998 calendar year
was compiled for Essex County, Ontario, which was
This project is part of  a larger ten city national air toxic
taken as reasonably representative of  the Greater
data analysis project developed by the EPA to gather
Windsor region, and for the sum of  the Michigan
information regarding the spatial and temporal variabil-
counties of  Macomb, Oakland, and Wayne.  The summa-
ity of hazardous air pollutants concentration in ambient
tion of  the three Michigan counties has been taken as
38