Benzene is monitored continuously at the site using a Syntec Spectra G.C. 955. This is in-situ Gas Chromatography. The ambient air is sampled and is pre-concentrated before analysis on the G.C.
The latest available results for benzene and ozone precursor compounds are:
Benzene
Average Concentration: 1.74 ug m-3Averaging Period: 01/03/11 - 31/05/11
This is below the upper assessment threshold of 2.0 ug m-3.
Ozone Precursor Compounds
The following compounds are also measured at Rathmines: toluene, o-xylene, m-xylene,p-xylene, ethylbenzene.
Toluene
Average Concentration: 5.04 ug m-3Averaging Period: 01/03/11 - 31/05/11
O- Xylene
Average Concentration: 0.63 ug m-3Averaging Period: 01/03/11 - 31/05/11
M & P - Xylene
Average Concentration: 3.51 ug m-3Averaging Period: 01/03/11 - 31/05/11
Ethylbenzene
Average Concentration: 0.40 ug m-3Averaging Period: 01/03/11 - 31/05/11
