The carefully developed data processing algorithms used by AQMesh are fully traceable and fixed by version number, and, unlike other systems, have been achieved with no use of machine learning or artificial intelligence
Measure accurately across every continent
Development through extensive global co-location comparison trials in all seasons across each continent means AQMesh can operate in the widest possible range of environments and conditions.
There is simply no substitute for getting out there and testing the conditions. From day one we have not been afraid to see exactly what AQMesh can do – and to test its limits. We have welcomed the opportunity to work with partners across the world, over nearly a decade, and let them carry out independent analysis of data from pods co-located with reference stations.
Most often the results have been great: not only has the pod carried on operating, whatever the conditions, but the data accuracy has been maintained. There have been times during the development of AQMesh where we have come across conditions which highlight an opportunity for improvement in our processing and we have used that – in conjunction with as wide a base of comparison datasets as possible – to develop a new processing algorithm.
We have seen pods covered in snow in Sweden or Minnesota, scorching in the deserts of Iraq, in heavy rain in Asia or Scotland. Just look at the range of countries where AQMesh has been used. AQMesh has led the way in development of small sensor air quality monitoring systems - including the first to use a sun shield to minimise the impact of direct sunshine – and we will continue to do so.
More AQMesh benefits
AQMesh performance and long-term baseline stability has been proven over many years of independent global co-location trials against certified reference equipment
Meaningful correction of cross-gas effects and interference from environmental conditions is consistently delivered through proven and traceable processing
Robust hardware, wireless communications and the secure AQMeshData server mean AQMesh pods can easily reconnect themselves and continue to capture data if power is ever interrupted
AQMesh has been on the market and in the field since 2012, with some customers still successfully operating the exact same pods they received nine years ago
With measurements processed and stored on the secure AQMeshData server there is no need for site visits to retrieve data and should anything untoward happen to the pod, data is still perfectly safe and accessible
Related information
AQMesh is the proven small-sensor air quality monitor for indoor and outdoor air quality monitoring applications, measuring gases and particulates.
AQMesh performance has developed through a series of co-location comparison trials in which AQMesh pods are installed next to an air quality monitoring reference station..
S I Analytics has supplied 65 AQMesh pods into Southern Africa since 2016, many of which are used in mining applications. The small, post-mounted air pollution monitoring units measure a range of gaseous pollutants and particulate matter, as well as environmental conditions.
North Americans will be well aware of the particularly harsh weather in the early months of 2019, but AQMesh has taken conditions in its stride. The AQMesh stated operating range of -20°C to + 40°C is backed up by long-term operation across a wide range of climates.
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).
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.
Featured case studies
Breathe London - 100 AQMesh pods are used as stationary monitoring points in the groundbreaking Breathe London project.
Urban Observatory - AQMesh systems are deployed across Newcastle and Gateshead in conjunction with other instruments for monitoring parameters such as air and water quality, noise, weather, energy use and traffic.
Minnesota Pollution Control Agency - 50 AQMesh pods are installed in Minneapolis and St. Paul to build up a picture of air quality across the two cities.
UNRESP project - Six AQMesh pods are used to show variations in volcanogenic emissions across locations near the Masaya volcano, Nicaragua.
AtmoSud & CETU - AQMesh network will be used to manage Marseille tunnel ventilation systems.
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