TABLE 6
Criteria (Ontario) for Total Suspended Particulate (TSP)
Ontario (MOE)
3
Total Suspended Particulates
24-hour AAQC
120µg/m
3
1-year AAQC
60 µg/m
Sources
Inhalable Particulate Matter (PM )
10
Sources are numerous and include combustion, incin-
eration, construction, mining, metal smelting and metal
Formed
processing.  Other sources include motor vehicle
May be directly emitted by a source or formed in the
exhaust, road dust, wind blown soil, and forest fires.
atmosphere by the transformation of  gaseous
precursor emissions, such as NOx and SO  (Ref.
2
Effects
11).
Respiratory diseases such as asthma are aggravated by
and PM .
exposure to high concentrations of PM
10
2.5
Standards/Criteria
TABLE 7
Standards (Michigan) / Criteria (Ontario) for Inhalable Particulate Matter
Michigan (U.S. EPA NAAQS)
Pollutant
Primary (Health Related)
Secondary
3
Annual Arithmetic Mean
50 µg/m
same as Primary standard
PM
10
The PM  standard is attained when
10
the expected annual arithmetic mean
concentration is less than or equal to
3
50 µg/m  (three-year average)
3
24-hour
150 µg/m
The 24-hour standard is attained when
the expected number of  days above
3
150 µg/m  is equal to or less than
one per year.
Ontario (MOE)
Pollutant
Criteria
3
24-hour Interim AAQC
50 µg/m
PM
10
Sources
Fine/Respirable Particulate Matter (PM )
2.5
Major sources of PM  are fossil fuel combustion
2.5
Formed
by electric utilities, industry, and motor vehicles;
Fine PM (PM ) is derived mainly from combustion
residential fireplaces and wood stoves; vegetation
2.5
material that has volatilized and then condensed, or
burning; and the smelting or other processing of
from the condensation or transformation of
metals
emitted gases in the atmosphere, such as sulfur
dioxide (SO ), nitrogen oxides (NOx) and volatile
Effects
2
organic compounds (VOC) (Ref. 12).
Depend on the exposure, concentration and chemi-
cal nature of  the particulate.  Fine particulates can
11