Accredited Stack Emission & Atmospheric Air Testing
Operators of installations subject to emission permits or integrated permits are required to carry out periodic emission measurements by an accredited laboratory. OIKOS performs comprehensive measurements of gas volume flow, O2 concentration and moisture content, and the full spectrum of pollutants — from basic gases (CO, CO2, SO2, NOx) through metals, TVOC and B(a)P to isocyanates and BTEX. Reports are issued under PCA accreditation No. AB 934 (PN-EN ISO/IEC 17025) and accepted by environmental inspection authorities.
Why OIKOS for Stack Emissions
Five reasons our stack emission and atmospheric air measurements stand out — full permit coverage from one supplier:
- Full analytical scope — gases (CO, CO2, SO2, NO, NOx), metals in gas and dust, inorganic compounds, TVOC, B(a)P, isocyanates, BTEX — one laboratory, one report
- AB 934 (PN-EN ISO/IEC 17025) accreditation — reference methods, results accepted by environmental inspection authorities
- Own sampling — OIKOS staff collect samples on filters, in absorption solutions and on sorbent tubes directly at the installation
- Multiple flow measurement methods — pitot tube, anemometric, thermoanemometric — we select the method optimal for your installation
- 35 years of experience in emission measurements for energy, chemical, metallurgical and waste industries
From Gas Flow to TVOC and Heavy Metals — Full Permit Coverage
OIKOS performs comprehensive measurements of gas volume flow (using pitot tube, anemometric and thermoanemometric methods), O2 concentration and moisture content, and the full spectrum of pollutants — CO, CO2, SO2, NO, NOx; metals in stack gas (As, Cd, Cr, Co, Cu, Mn, Ni, Pb, Sb, Ti, V) and in dust; hexavalent chromium Cr6+; HCl, Cl2, NH3, O3, HCHO, H2SO4; benzo(a)pyrene; isocyanates; individual organic compounds and aromatic hydrocarbons (BTEX); and TVOC (total volatile organic carbon).
Samples are collected on filters, in absorption solutions and on sorbent tubes — depending on the parameter being determined. For atmospheric air, we carry out air quality monitoring using filters and sorbent tubes.
Operating since 1988, OIKOS holds AB 934 accreditation and has served over 1,000 clients from the energy, chemical, metallurgical, food and municipal sectors.
Methods & Instruments
Methods
Measurement of dust, heavy metals, TVOC, BTEX, benzo(a)pyrene, and isocyanates in atmospheric air and stack emissions; manual and automatic methods.
Instruments
Isokinetic aspirators, point-source stack sampling probes, gas samplers, quartz filters, GC-FID and HPLC-UV chromatographs, IC, UV-VIS spectrophotometer.
Reference documents
PN-Z-04030 (dust); PN-EN 13284-1 (dust emissions); PN-EN 14385 (metals in stack gases); PN-EN 1948 (PCDD/PCDF — where in scope); full list in AB 934 Scope.
FAQ
Stack Emission Questions
What is the difference between emission and immission?
Emission is the quantity of a substance (or energy, e.g. noise) introduced into the environment by an installation or source — expressed as a concentration in the stack gas or as a mass flow rate. Immission is the concentration of a substance in atmospheric air measured at the point of exposure (outdoors, in the surroundings). The emission measurements carried out by OIKOS concern emissions from technological sources (at the stack or duct outlet).
How often must stack emission measurements be carried out?
The frequency of emission measurements is defined by the emission permit or integrated permit issued for the installation. Typically it is once or twice per year for lower-category emission installations, or more frequently for energy installations and particularly burdensome sources. The exact schedule should be verified in the conditions of your permit.
What is TVOC and when is it measured?
TVOC (Total Volatile Organic Carbon) is a cumulative measure of the concentration of all volatile organic compounds in stack gas, expressed as organic carbon. TVOC measurement is required e.g. for painting, printing, chemical and other VOC-emitting installations, under the emission standards regulation. OIKOS determines TVOC using reference methods on sorbent tubes or by FID detection.
Does OIKOS carry out measurements in hard-to-access ducts and stacks?
Yes. Our staff are appropriately trained and equipped for working at height and in confined spaces. When requesting a quote, please provide details of the measurement port location and dimensions — we will adapt the methodology to the installation conditions.