Air Emission Monitoring
Hot-Wet CEMS
An extractive emission monitoring system that keeps the sample hot from the stack to the analyzer.
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Solutions
Air Emission Monitoring
CEMS and ambient air quality monitoring designed to keep emission data measurable, traceable, and defensible, from the measurement point on the stack to the report.
01
Context and obligations
For many industrial units, emission monitoring is no longer optional. Certain activities are required to monitor stack emissions continuously and report the data. What is tested is not just whether the equipment exists, but whether its data can be defended when operations, auditors, or management ask.
SISPEK
MoEF Regulation (Permen LHK) No. 13 of 2021 governs SISPEK, the information system for continuous industrial emission monitoring. For units within its scope, CEMS data becomes part of reporting, so data quality and continuity matter.
ISPU
MoEF Regulation (Permen LHK) No. P.14 of 2020 on the Air Pollutant Standard Index (ISPU) sets how ambient air quality is communicated to the public. Ambient station data around industrial areas can be read within the same framework.
Ambient air quality standards
Government Regulation (PP) No. 22 of 2021, Annex VII sets the national ambient air quality standards, which serve as the benchmark when ambient monitoring data is evaluated.
PROPER
In the company environmental performance rating (PROPER), complete and traceable monitoring data makes it easier for environmental teams to prepare evidence of performance.
02
What needs to be measured
The parameters to monitor depend on the sector, the fuel, and the requirements in your unit’s permits. That is why we always start from the permit documents and the stack conditions, not from an equipment list.
Parameters commonly monitored by CEMS:
- Gases: SO2, NOx, CO, and O2 as the correction parameter
- Particulates (dust) and opacity
- Flue gas flow rate, temperature, and pressure
- Additional parameters depending on sector and process
For ambient air monitoring (AQMS), parameters follow the needs around the site, for example particulates and the main gaseous pollutants, with meteorological data as context.
03
Recommended systems
No single CEMS configuration suits every stack. The choice depends on the composition and moisture of the flue gas, the dust load, temperature, access to the measurement point, and the site team’s ability to maintain it.
Extractive hot-wet
The sample is kept hot from probe to analyzer, so soluble components are not lost with the condensate. Suited to moist flue gas.
Extractive cold-dry
Moisture is removed before analysis. A widely used configuration for the main gaseous parameters that site teams find relatively easy to maintain.
In-situ dust & flow
Dust and flow are measured directly inside the stack, without extracting a sample, to complement gas CEMS.
AQMS
Ambient monitoring stations with analyzers, meteorological sensors, and data acquisition.
- Measurement pointSample taken at a representative point
- Analysis systemGas, dust, and flow rate
- Data loggerData recorded, validated, and stored
- ReportingInternal and external reports
04
After installation: what Polaris does
Once the system is installed, the real work begins. A CEMS that is not maintained keeps showing numbers, but those numbers may not be defensible.
- Commissioning under operating conditions, with handover documentation.
- Periodic calibration and checks, including checks with standard gases.
- Preventive maintenance that is scheduled and recorded.
- Troubleshooting when readings drift or data stops.
- Spare parts and consumables planned before they are needed.
- Data support for internal and external reporting.
For units that want to avoid the full upfront investment, the same package is also available as Rental CEMS.
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Related products
Air Emission Monitoring
Cold-Dry CEMS
An extractive emission monitoring system that dries the sample before analysis.
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Air Emission Monitoring
Dust & Flow Monitor
In-situ instruments that measure dust concentration and flue gas flow directly inside the stack.
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Air Emission Monitoring
Gas Sampling System
The sampling and conditioning train that determines whether the analyzer receives a representative gas sample.
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Air Emission Monitoring
AQMS: Ambient Air Quality Monitoring System
An ambient air quality monitoring station that records air and meteorological parameters continuously.
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Contact
Tell us about monitoring at your site.
Choose the route that fits best. Our team reviews your needs, site conditions, and timeline before preparing a recommendation.
01
Technical consultation
Discuss parameters, measurement points, and site conditions before choosing a system.
- Phone
- (021) 645 6305
- info@ptpid.com