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Miscellaneous Organic Chemical Manufacturing
NESHAP (MON) Summary
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1. What Are the Affected Sources, Emission Points and Chemicals
Emitted?
 Emission
points identified from miscellaneous organic chemical manufacturing
production
include process vents, storage tanks, equipment leaks,
transfer operations, and wastewater collection
and treatment systems. The affected source subject to this
subpart is the facility wide collection of miscellaneous
organic chemical manufacturing process units (MCPU), wastewater
treatment
and conveyance systems, transfer operations, and associated
ancillary equipment such as heat exchange systems that are
located at a major source of Hazardous
Air Pollutants (HAPs) as defined in section 112(a) of the
CAA. An MCPU includes
a miscellaneous organic chemical manufacturing process, as
defined in 40
CFR 63.2550, and must meet the following criteria:
- It
manufactures any material or family of materials
described in 40
CFR 63.2435(b)(1); it processes, uses,
or produces HAP described in 40
CFR 63.2435(b) and
-
Except
for certain process vents that are part of a chemical
manufacturing process unit, as identified in 40
CFR 63.100(j)(4), the MCPU is not part of
an affected source under another subpart of 40 CFR
part 63. The MCPU is defined according to the equipment
used to make the subject material, and it includes
storage tanks that are associated with the process.
New
sources are created by reconstructing
existing sources, constructing new greenfield facilities,
or constructing an addition to
an existing source
that is a dedicated
MCPU and has the potential
to exceed 10 tons per year of an
individual HAP or 25
tons per year of combined HAP. Reconfiguration of existing
equipment
does not
constitute construction.
The
following list are manufacturing types that may be affected
by this rule:
- Alkyd Resins Production
- Ammonium Sulfate Production
- Benzyltrimethylammonium Chloride Prod.
- Carbonyl Sulfide Production
- Chelating Agents Production
- Chlorinated Paraffins Production
- Ethyllidene Norbomene Production
- Explosives Production
- Hydrazine Production
- Maleic Anhydride Copolymers Production
- Manufacture of Paints, Coatings, & Adhesives
- OBPA/1, 3-diisocyanate Production
- Photographic Chemicals Production
- Phthalate Plasticizers Production
- Polyester Resins Production
- Polymerized Vinylidene Chloride Prod.
- Polymethyl Methacrylate Resins Prod.
- Polyvinyl Acetate Emulsions Prod.
- Polyvinyl Alcohol Production
- Polyvinyl Butyral Production
- Quaternary Ammonium Comp. Prod.
- Rubber Chemicals Production
- Symmetrical Tetrachloropyridine Production
Miscellaneous
organic chemical manufacturing facilities emit an
estimated 21,900 Mg/yr (24,100 tpy) of organic and inorganic
HAP.
 Organic HAP include:
- Toluene
-
Methanol
-
Xylene
-
Methyl Ethyl Ketone (MEK)
-
Ethyl Benzene
-
Methyl Isobutyl Ketone (MIBK)
-
Vinyl Acetate
Inorganic
HAP
emitted by this industry include hydrogen chloride
(HCl) and some HAP
metals in the form of particulate matter (PM).
Health and Environmental Risk Assessment Resources
Search the following sites for more information on the HAP listed above.
US
EPA HAPS Health Effects Notebook
US
EPA Integrated Risk Information System
University
of Vermont Safety Resources
NIOSH
Pocket Guide to Chemical Hazards
WISER -
the Wireless Information System for Emergency Responders
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