Monitoring air quality with Swedish company Opsis

Measuring station for air quality monitoring, London. Photo: Enviro Technology Servicies Plc.

Measuring station for air quality monitoring, London. Photo: Enviro Technology Servicies Plc.

The Swedish company Opsis helps public bodies and businesses to keep check on their air quality, whether emissions from individual chimneys or from diffuse sources.

Opsis AB’s optic measuring equipment can handle most known types of as emissions and deliver data ready for use in the drive for a better environment.

State-of-the-art systems

The company develops, manufactures and markets state-of-the-art systems for gas analysis and process control. The technique can measure emissions both from individual chimneys and from engines. With the aid of dispersion models, the company can also chart and track emissions within an extended geographical area.

Opsis provides hardware and software for use from the actual time of measurement to the analysis phase and finally to the digital public presentation of results.

The company is represented on all seven continents via a network of subsidiaries and distributors. More than 90 per cent of its sales are exports.

Environmental quality standards

All manufacturing takes place at Furulund in Skåne, Southern Sweden. Environmental demands are at the root of the company’s expansion. In Sweden, the official requirements concerning environmental quality standards for urban air have led to many assignments.

The conditions laid down for operating permits are creating a demand for the technology, while high quality measurements are also a valuable component in environmental improvement work in certification systems of one kind or another.

Important part of the improvement process

According to Opsis, the benefits of the technology extend beyond environmental demands and the need to show that environments are being improved.

Emissions monitoring can also help optimise industrial processes, boost profitability and improve the working environment. The technology itself does not reduce emissions but it is an important part of the improvement process. Without knowledge - no basis for action, without facts - no good decisions.

Tools for communication

CEO Svante Wallin views the technique primarily as a tool for dialogue and improvement. High emission levels should not be concealed, instead red figures may spell the beginning of something new and better.

"People thinking about investing in Opsis monitoring systems must want to, and dare to, use and report the results of our measurements", he says.

"The technique should be used to communicate challenges and problems, which in turn provides a sound basis for solutions."

Keep track of air improvement

Svante Wallin cites a partnership with the Department of Pollution Control in New Delhi as a case in point. Opsis has installed a measurement system for monitoring air pollution levels in various parts of this Indian megacity. In some districts there is sometimes thick smog, and exhaust fumes from the city’s traffic are a tough nut to crack.

But the city’s inhabitants can now keep track of air improvement efforts via the presentation of measurements on the Internet. This makes for greater awareness and acceptance of public action to combat urban air pollution.

White light is the core

White light is the core component in the company’s measuring technology. Gas concentrations and pollution loads are measured and calculated with the aid of a light source that emits a broad banded white light.

The company’s basic DOAS (Differential Optical Absorption Spectroscopy) systems use a Xenon lamp as the light source. Measurement paths can extend from 100 metres up to 5 000 metres, depending on local conditions and customer requirements.

New markets

Besides the West and India, the company is now established in China and the Middle East. Usually, new markets develop as environmental legislation becomes more stringent.

Opsis keeps to the fore by emphasising quality enhancement. Its measuring techniques have been tested and approved by a number of international bodies, including the American EPA and the German TÜV. The company also provides training in measurement technique, calibration and maintenance, and is certified under both the ISO 9001 quality system and the ISO 14001 environmental quality system. In addition, Opsis has an accredited calibration laboratory in accordance with ISO 17025.

The company goal? To make a measurable difference - today and tomorrow!

Opsis AB

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