Odor Monitoring and Analysis

Odor Monitoring and Analysis Services

Identify odor sources, understand their impact, and make informed decisions to improve environmental performance.

ETLCO provides odor monitoring and analysis services for industrial facilities, landfills, wastewater treatment plants, agricultural operations, and other facilities where odorous emissions require assessment.

Serving environmental and industrial clients since 2009, ETLCO helps operators investigate odor concerns, measure selected odor indicators, and evaluate the effectiveness of odor control measures. Our team tailors each monitoring program to the facility’s processes, surrounding environment, and project requirements.

Understand the Sources and Impact of Odor

Odor can affect surrounding communities, generate complaints, and indicate changes in operating conditions. A structured monitoring program helps establish where odors originate, when they occur, and which activities may contribute to them.

ETLCO’s services support:

• Identification and investigation of potential odor sources.

• Baseline assessments before operational changes or facility expansion.

• Monitoring at emission sources, site boundaries, and selected surrounding locations.

• Investigation of recurring odor complaints.

• Evaluation of odor control systems through comparative monitoring.

• Environmental reporting and follow-up assessments.

Odor Parameters and Monitoring Scope

We select monitoring parameters and assessment methods according to the source, expected compounds, and objectives of the study.

• Odor concentration: Assessment of odor concentration, expressed in odor units per cubic meter where applicable to the selected method.

• Hydrogen sulfide (H₂S): Measurement of a key odor indicator associated with wastewater, waste handling, and certain industrial processes.

• Ammonia (NH₃): Monitoring of emissions associated with agricultural activities, organic waste, and relevant industrial operations.

• Volatile organic compounds (VOCs): Assessment of selected compounds or screening indicators relevant to the suspected odor source.

• Odor intensity: Evaluation of perceived odor strength using the agreed assessment procedure.

Chemical concentrations, odor concentration, and perceived intensity provide different information. ETLCO defines these measurements separately so that results are appropriate for the intended assessment.

Monitoring Designed Around Your Facility

Effective odor investigations depend on where and when measurements are taken. ETLCO coordinates the monitoring scope with the client to reflect operating schedules, suspected emission points, and periods when odor concerns are most likely to occur.

Depending on the project, the program may include:

• Review of site activities and potential emission sources.

• Selection of monitoring locations and sampling periods.

• Field measurements and sample collection for agreed analyses.

• Recording of relevant operating conditions and weather observations.

• Comparison of findings across locations or monitoring periods.

• Repeat monitoring following corrective actions or process changes.

Supporting Environmental Compliance

ETLCO develops monitoring programs to support assessments against applicable environmental requirements, including relevant requirements of the National Center for Environmental Compliance (NCEC) and the Royal Commission (RC).

The scope, methods, and reporting criteria are agreed according to the facility’s permit conditions and project objectives. Where occupational exposure is also a concern, workplace air monitoring should be defined as a separate assessment with appropriate exposure criteria.

Our results provide evidence to support compliance reviews, environmental investigations, and odor management decisions.

Services for a Wide Range of Sectors

ETLCO supports odor monitoring needs across:

• Industrial and petrochemical facilities.

• Wastewater treatment plants and pumping stations.

• Landfills and waste management facilities.

• Sludge handling and treatment operations.

• Agricultural and livestock operations.

• Other facilities with odor-generating processes.

Clear Reporting for Practical Action

ETLCO provides reports that bring together monitoring results, site observations, and relevant sampling conditions. Depending on the agreed scope, reports may include measurement locations, selected parameters, methods, units, operating observations, and comparisons with applicable assessment criteria.

These findings help clients prioritize investigations, evaluate control measures, and plan further monitoring where needed.

Discuss Your Odor Monitoring Requirements

Share your facility location, operating activities, suspected odor sources, and any complaint history or permit requirements. ETLCO will help define an appropriate monitoring scope and prepare a technical and commercial proposal tailored to your project.