Resource Recovery Facility: Emissions Data

Today's data

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. The numbers shown on our data pages are hourly averages. Recent month's CEM reports are archived online.

Have emissions questions or need more information?

The Resource Recovery Facility must comply with the requirements of Maryland Department of the Environment (MDE) Permit # 24-031-01718, 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 other than water in an uncombined form
10% (6-minute average)

Carbon monoxide (CO)
200 ppmv @ 7% O2, dry (1-hour average)
50 ppmv @ 7% O2, dry (24-hour average)
100 ppmv @ 7% O2, dry (4-hour average)

Hydrogen chloride (HCl)*
25 ppmv @ 7% O2, dry (3-hour average) or >= 95% removal efficiency
29 ppmv @ 7% O2, dry or >= 95% removal efficiency

Sulfur dioxide (SO2)
30 ppmv @ 7% O2, dry (3-hour average) or >= 85% removal efficiency
29 ppmv @ 7% O2, dry (24-hour geometric average) or >= 75% removal efficiency

Nitrogen oxides (NOx)
180 ppmv @ 7% O2, dry (24-hour average)
180 ppmv @ 7% O2, dry (24-hour average)

*Annual source testing emission standard, not a CEM standard

Resource Recovery Facility

Operating Indication:

Furnace Roof Temperature 1100 to1600 °F, which corresponds approximately to furnace temperatures of 1800 to 2300 °F, respectively. When a unit is shut down, it takes hours for the temperature to decrease to ambient levels.