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Resource Recovery Facility: Emissions Data

Combustion Unit #1 | Combustion Unit #2 | Combustion Unit #3

The composition of the gases generated in each combustion unit are sampled every ten seconds. This is referred to as "continuous emissions monitoring," or CEM. Below are hourly averages of today's data. The current month's CEM reports are archived online. For further information, please contact Dr. Ramana Rao via e-mail or 240-777-6400.

The Resource Recovery Facility must comply with the requirements of Maryland Department of the Environment (MDE) Permit # 15-01718, as well as Federal standards. Under this air quality permit, the following limits must not be exceeded:

Parameter	MDE Permit Requirements	Federal Standards (40 CFR 60)
Opacity	No visible emissions	10% (6-minute average)
Carbon monoxide (CO)	200 ppmv @ 7% O₂, dry (1-hr average) 50 ppmv @ 7% O₂, dry (24-hr average)	100 ppmv @ 7% O₂, dry (4-hr average)
Hydrogen chloride (HCl)*	25 ppmv @ 7% O₂, dry or >= 95% removal efficiency	29 ppmv @ 7% O₂, dry or >= 95% removal efficiency
Sulfur dioxide (SO₂)	30 ppmv @ 7% O₂, dry (3-hr average) or >= 85% removal efficiency	29 ppmv @ 7% O₂, dry (24-hr geometric average) or >= 75% removal efficiency
Nitrogen oxides (NOx)	180 ppmv @ 7% O₂, dry (24-hr average)	180 ppmv @ 7% O₂, dry (24-hr average)

*Annual source testing emission standard, not a CEM standard

Operating Indication:
Furnace Roof Temperature 1100-1600 °F, which corresponds approximately to furnace temperatures of 1800-2300 °F, respectively. When a unit is shut down, the temperature decreases gradually to ambient levels in 24-48 hours. Because the adjacent units are operating at nearly 2000 °F, the temperature will remain at approximately 100 °F.

Combustion Unit #1

Numbers in brackets are permit limits.

Previous Day 24-hr NOx (ppmv) [180]
86

Date/Time	1-hr Opacity (%) [<10]	1-hr CO (ppmv) [200]	Rooftop Temp(°F) [1100]	1-hr HCl (ppmv) [25]	1-hr HCl removal efficiency (%) [>=95]	3-hr SO₂ (ppmv) [30]	3-hr SO2 Removal Efficiency [>=85%]
07/04/2009 00:00:00	1.0	27	1312	19	97	22	89
07/04/2009 01:00:00	1.1	12	1321	---	---	---	---
07/04/2009 02:00:00	1.2	6	1359	---	---	---	---

Combustion Unit #2

Numbers in brackets are permit limits.

Previous Day 24-hr NOx (ppmv) [180]
78

Date/Time	1-hr Opacity (%) [<10]	1-hr CO (ppmv) [200]	Rooftop Temp(°F) [1100]	1-hr HCl (ppmv) [25]	1-hr HCl removal efficiency (%) [>=95]	3-hr SO₂ (ppmv) [30]	3-hr SO2 Removal Efficiency [>=85%]
07/04/2009 00:00:00	2.1	30	1343	19	96	18	91
07/04/2009 01:00:00	2.2	11	1347	---	---	---	---
07/04/2009 02:00:00	2.4	8	1375	---	---	---	---

Combustion Unit #3

Numbers in brackets are permit limits.

Previous Day 24-hr NOx (ppmv) [180]
85

Date/Time	1-hr Opacity (%) [<10]	1-hr CO (ppmv) [200]	Rooftop Temp(°F) [1100]	1-hr HCl (ppmv) [25]	1-hr HCl removal efficiency (%) [>=95]	3-hr SO₂ (ppmv) [30]	3-hr SO2 Removal Efficiency [>=85%]
07/04/2009 00:00:00	0.5	59	1335	19	97	22	87
07/04/2009 01:00:00	0.5	17	1376	---	---	---	---
07/04/2009 02:00:00	0.6	6	1386	---	---	---	---

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