particulate matter (pm) emission calculations part 2 facility’s tested production rate used during...
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Particulate Matter (PM) Emission Calculations
Part 2
Mecklenburg County Land Use and Environmental Services Agency
Air Quality Division
Presented by: Danielle Jones
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How Do I Calculate My Emissions?
• Facilities should use the “best available” information to estimate emissions.
• Various approaches to emission estimation:
– Direct measurement
– Mass balance
– Emission factors
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Approaches to Emission Estimation
Source: Compilation of Air Pollutant Emission Factors, AP-42, 5th Edition, Volume I
i.e., stack testing (a direct measurement)
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PM Sources With Stack Testing Requirements
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What to look for on your stack test report?
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Your facility’s tested production rate used during the stack test must be used to calculate the site specific
emissions.
What to look for on your stack test report?
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Unit Conversion
• From the example, the emission rate provided in the stack test report in gr/dscf and lbs/hr.
– Convert from lbs/hr to lbs/ton for annual emission calculation.
• Emission Rate (lbs/ton) = emission rate (lbs/hr)
production rate (tons/hr)
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• Tested production rate: 270 tons/hr
• PM (filterable) emission rate = 0.61 lbs/hr = 0.0023 lbs/ton
• PM (condensible) emission rate = 0.90 lbs/hr = 0.0033 lbs/ton
Example: Site-Specific Stack Test Rate Unit Conversion
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Example: Spreadsheet Input Using Stack Test Results
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Example: Spreadsheet Output
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How does toxic emissions reporting apply to a facility that is a PM source?
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Determining 2014 Toxics Reporting Requirements
Does your facility have any HAP/TAP
emissions from permitted processes?
Facility must report HAP/TAP emissions to
MCAQ.
Does your facility have any g(2)
exempt sources that emit any
HAP/TAP?
Is reporting required for the
g(2) exempt source?
Facility is not required to report HAP/TAP
emissions to MCAQ.
Yes No
Yes No
No
Yes
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Spreadsheets for g(2) exempt combustion sources
http://airquality.charmeck.org
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Danielle M. Jones
Email:
Phone:
704-336-5430