This poster highlights measurements for the criteria pollutants NO₂, O₃ and SO₂ as well as for HONO (nitrous acid) and Formaldehyde, gases fundamentally important in understanding complex atmospheric processes.

Benefits of the Opsis DOAS system include the ability to measure NO₂ “directly” (rather than by calculation by NOx-NO) and also to be able to measure “difficult” gases such as HONO and Formaldehyde on a continuous, hassle-free basis.

As well as providing fast, accurate and inherently reliable measurements, Opsis DOAS requires the absolute bare minimum of operator involvement, a quick wipe of the transceiver and reflector quartz windows once a month is about it!

Coupled with very low running costs, reduced calibration requirements and all the benefits of long-path remote sensing, Opsis DOAS is just one example of the cutting-edge measurement technology available from ET.

 
You can view the poster here.