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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]
173

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%]
07/03/2008 00:00:00	1.3	1	1586	22	97	23	90
07/03/2008 01:00:00	1.3	0	1515	---	---	---	---
07/03/2008 02:00:00	1.3	0	1517	---	---	---	---
07/03/2008 03:00:00	1.3	0	1514	16	98	20	88
07/03/2008 04:00:00	1.2	0	1514	---	---	---	---
07/03/2008 05:00:00	1.3	0	1520	---	---	---	---
07/03/2008 06:00:00	1.3	0	1529	18	97	16	89
07/03/2008 07:00:00	1.4	1	1562	---	---	---	---
07/03/2008 08:00:00	1.3	0	1545	---	---	---	---
07/03/2008 09:00:00	1.3	2	1519	19	97	18	90
07/03/2008 10:00:00	1.3	2	1519	---	---	---	---
07/03/2008 11:00:00	1.3	2	1526	---	---	---	---
07/03/2008 12:00:00	1.2	1	1549	21	97	18	89
07/03/2008 13:00:00	1.2	0	1552	---	---	---	---
07/03/2008 14:00:00	1.1	0	1546	---	---	---	---
07/03/2008 15:00:00	1.1	2	1547	18	98	14	90
07/03/2008 16:00:00	1.1	1	1558	---	---	---	---
07/03/2008 17:00:00	1.0	0	1568	---	---	---	---
07/03/2008 18:00:00	1.0	0	1569	---	---	---	---
07/03/2008 19:00:00	1.1	1	1575	---	---	---	---

Combustion Unit #2

Numbers in brackets are permit limits.

Previous Day 24-hr NOx (ppmv) [180]
134

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%]
07/03/2008 00:00:00	1.4	---	---	---	---	---	---
07/03/2008 01:00:00	1.4	---	---	---	---	---	---
07/03/2008 02:00:00	1.5	---	---	---	---	---	---
07/03/2008 03:00:00	1.4	---	---	---	---	---	---
07/03/2008 04:00:00	1.4	---	---	---	---	---	---
07/03/2008 05:00:00	1.5	---	---	---	---	---	---
07/03/2008 06:00:00	1.5	---	---	---	---	---	---
07/03/2008 07:00:00	1.6	---	---	---	---	---	---
07/03/2008 08:00:00	1.6	---	---	---	---	---	---
07/03/2008 09:00:00	1.7	---	---	---	---	---	---
07/03/2008 10:00:00	1.7	---	---	---	---	---	---
07/03/2008 11:00:00	1.6	---	---	---	---	---	---
07/03/2008 12:00:00	1.5	---	---	---	---	---	---
07/03/2008 13:00:00	1.5	---	---	---	---	---	---
07/03/2008 14:00:00	1.5	---	---	---	---	---	---
07/03/2008 15:00:00	1.4	---	---	---	---	---	---
07/03/2008 16:00:00	1.4	---	---	---	---	---	---
07/03/2008 17:00:00	1.3	---	---	---	---	---	---
07/03/2008 18:00:00	1.3	---	---	---	---	---	---
07/03/2008 19:00:00	1.3	---	---	---	---	---	---

Combustion Unit #3

Numbers in brackets are permit limits.

Previous Day 24-hr NOx (ppmv) [180]
91

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%]
07/03/2008 00:00:00	1.6	---	---	---	---	---	---
07/03/2008 01:00:00	1.6	---	---	---	---	---	---
07/03/2008 02:00:00	1.3	---	---	---	---	---	---
07/03/2008 03:00:00	1.3	---	---	---	---	---	---
07/03/2008 04:00:00	1.4	---	---	---	---	---	---
07/03/2008 05:00:00	1.5	---	---	---	---	---	---
07/03/2008 06:00:00	1.5	---	---	---	---	---	---
07/03/2008 07:00:00	1.6	---	---	---	---	---	---
07/03/2008 08:00:00	1.7	---	---	---	---	---	---
07/03/2008 09:00:00	1.6	---	---	---	---	---	---
07/03/2008 10:00:00	1.6	---	---	---	---	---	---
07/03/2008 11:00:00	1.6	---	---	---	---	---	---
07/03/2008 12:00:00	1.6	---	---	---	---	---	---
07/03/2008 13:00:00	1.6	---	---	---	---	---	---
07/03/2008 14:00:00	1.6	---	---	---	---	---	---
07/03/2008 15:00:00	1.6	---	---	---	---	---	---
07/03/2008 16:00:00	1.5	---	---	---	---	---	---
07/03/2008 17:00:00	1.5	---	---	---	---	---	---
07/03/2008 18:00:00	1.5	---	---	---	---	---	---
07/03/2008 19:00:00	1.5	---	---	---	---	---	---

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