AQMesh is now able to offer CO2 and H2S within its range of gas options for local air pollution monitoring. The NDIR CO2 sensor, which can be offered within a single AQMesh pod alongside five other gases out of NO, NO2, O3, CO, SO2 or H2S, as well as PM1, PM2.5, PM10, temperature, pressure and humidity, has been developed to deliver a higher performance than those typically used for indoor air quality monitoring.
Oil and gas facilities
Monitoring the potential escape of pollutant gases from industrial sites can be difficult to achieve due to changing weather conditions, which may require a large number of monitoring stations downwind of the escapes.
Due to changing wind speed and direction, plus the large size of many of these sites, the number of monitoring points required to ensure detection of an escape can become cost prohibitive. AQMesh provides a much lower cost solution, allowing many monitoring points to be located around the facility to provide coverage from all directions. In the event of a detection, alerts can be raised ensuring that action can be taken without delay.
AQMesh can be installed around the perimeter of a factory, oil or gas installation or refinery or other potential source of pollution to confirm that gases are not migrating offsite. The pods can also be installed in nearby residential areas to reassure community residents that they are not being exposed to pollution or to identify the source of any pollution measured.
AQMesh has been measuring ozone (O3) using small sensors since 2011 and the readings from the latest generation electrochemical sensor, using AQMesh v4.2.3 processing, as compared to co-located certified reference readings, consistently show an R2 of over 0.9 with an accuracy ±10ppb (20µg/m3).
The AQMesh small sensor air quality monitoring system already offers flexibility of monitoring location – through independent power and communications – as well as high data quality and traceability.
Following a successful evaluation phase in 2018, AQMesh small sensor air quality monitoring ‘pods’ have been selected for use in a project to control the ventilation of a road tunnel in the city of Marseille.
A study published in the Journal of the American Medical Association has found that long-term exposure to poor air quality can have the same damaging effect as smoking 20 cigarettes a day, with air pollution shown to be more dangerous than passive smoking.
Whilst not the only AQMesh pods still in regular use since the product was commercially launched in 2013, two AQMesh pods are still in use in Spain and demonstrate the long life of this small sensor air quality monitoring system.