airmOzone: 88 VOCs from PAMS and TO14 lists - Case Study
Ozone precursors by FID from WATER or AIR 0 - 325 μg/m3 or higher
Context & Challenges
Ozone concentration has been multiplied by 5 in the last century in the middle latitudes of the northern hemisphere from 10 PPB in 1874 to approximately 50 PPB today. This is an increase of 1.6% per year; the trend is probably higher (2.4% a year) over the last decades. (Chapter 1 of the International Geosphere-Biosphere Program - World Climate Research Program) In order to stop this global trend, directives have been written concerning the reduction of ozone precursor emissions (NOx and VOC) to define national emission maximum. The Directive 2000/96/EC states that the level of Benzene shall be reduced to an annual average of 5 μg/m3 by 2010 for EU countries (1 ppb = 3.25μg/m3).
Regarding VOC, the European directive 2002/3/CE advises to analyze 31 VOC, continuously and 24 hours per day. US Environmental Protection Agency suggests to analyze 56 VOC which constitute the PAMS program
Photochemical Assessment Monitoring Stations. In Japan, 58 VOC are being monitored 56 VOC + Alpha and Beta pinene.
Specific Chromatotec instruments have been designed to meet these new requirements in compliance with EN 14 662-3. Mcerts certification for benzene and VOC on airmovoc C6C12 in 2013. The only autoGC rack mounted system selected by the national US EPA for VOC monitoring.
FID for 88 compounds from air or water
airmOzone: A52022: cabinet 33U
Option airmo S for sulfur
airmOzone: cabinet A52022 made of an airmoVOC C2-C6 and an airmoVOC C6-C12 with FID.
By combining these two instruments, it is possible to analyze light and heavy VOC compounds. Thanks to FID detection and H2 carrier gas, the separation and sensitivity is excellent down to PPT levels.
The equipment has TUV approval on BTEX, European Mcert certification and US EPA selected on VOCs.
The Instruments are being calibrated with primary gas standard certified at ±2%.
There are no interferences on 10 compounds which can potentially interfere with benzene in compliance with EN 14 662-3 List of the 10 potential interfering compounds with Benzene.
The analyzer is LINEAR: range 0 / 100 ppb (0/325 μg/m3) (see doc airmoBTX / airmoVOC C6-C12, Linearity and repeatability Test).
The instruments are fully automated thanks to internal calibration (airmoCAL MFC).
VISTACHROM software controls the analyzers and enables storage and display of the chromatograms thanks to Peak Viewer.
It is possible to transfer data to a data logger with the communication protocols MODBUS RTU, JBUS or German PROTOCOL.
Thanks to those features, the airmOzone is the adequate solution for in situ VOC analysis.