DEP - Continuous Emissions Monitoring (CEM)

data.montgomerycountymd.gov | Last Updated 3 Apr 2023

This dataset show continuous emissions data from the Dickerson waste-to-energy plant. 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 the dataset are hourly averages. An air pollution control retrofit at this facility in 2009 reduced nitrogen oxide emissions up to 500 tons a year. 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 Federal standard limits are posted on https://www.montgomerycountymd.gov/sws/facilities/rrf/cem.html Update Frequency : Daily

Tags: emission, waste-to-energy, monitor, dickerson, continuous, environment, dep

This dataset has the following 10 columns:

Column NameAPI Column NameData TypeDescriptionSample Values
Date Reporteddate_reportedcalendar_dateDate Reported
1 Hour Optacityonehouroptacitytext1 Hour Optacity
1 Hour Carbon monoxideonehourcotext1 Hour Carbon monoxide
Roof Top TemperatureroottoptemptextRoof Top Temperature
3 Hour Hydrogen chloridethreehourhcitext3 Hour Hydrogen chloride
3 Hour Hydrogen chloride Removalthreehourhciremovaltext3 Hour Hydrogen chloride Removal
3 Hour Sulfur dioxidethreehourso2text3 Hour Sulfur dioxide
3 Hour Sulfur dioxide Removalthreehourso2removaltext3 Hour Sulfur dioxide Removal
Previous Day 24-Hours Nitrogen oxidespreviousday24hrnoxtextPrevious Day 24-Hours Nitrogen oxides
Combustion NumbercombustionnumbernumberCombustion Number