What is PAS 4023 about?
Air quality sensor systems are important in assessing and understanding the levels of various gaseous and particulate pollutants present in the air we breathe. PAS 4023:2023 gives practical guidance on how to:
- select sensor systems appropriate for your monitoring needs;
- deploy sensors in a way that promotes representative sample collection; and
- undertake the quality assurance (QA) processes to generate good quality data from these systems.
Who is PAS 4023 for?
Those aiming to monitor and report on air quality through the implementation of low cost sensor systems, including:
- policy makers
- local authorities
- environmental health officers
- citizen scientists
- industrial users
- sensor system manufacturers and suppliers
- academics/researchers
- those with an interest in air quality quantification and improvement.
What does PAS 4023 cover?
It provides recommendations for the selection, deployment, maintenance and quality assurance of low-cost air quality sensor systems as standalone units or as part of a network, for the measurement of outdoor ambient air as suited to their application and desired purpose.
This includes systems that are static in position and semi-permanent in placement.
PAS 4023:2023 covers air quality sensor systems which measure one or more of the following gaseous or particulate pollutants:
- nitrogen dioxide (NO2);
- oxides of nitrogen (NOx);
- nitric oxide (NO);
- ozone (O3);
- sulfur dioxide (SO2);
- carbon monoxide (CO);
- carbon dioxide (CO2); and
- particulate matter (PM10, PM2.5 and PM1) in outdoor ambient air.
PAS 4023:2023 covers sensor systems for the measurement of both gaseous and particulate pollutants and provides recommendations for:
- selecting sensor systems appropriate for your monitoring needs;
- deploying sensors in a way that promotes representative sample collection; and
- undertaking the quality assurance (QA) processes to generate good quality data from these systems.
Why should you use PAS 4023?
- It’s cost saving. PAS 4023:2023 provides recommendations on new sensor systems that can provide a lower-cost addition to reference methods
- It improves understanding of use and capability. It provides recommendations on new sensor systems that are expected be informative and to provide a much better understanding of an individual’s and group’s exposure to air pollutants. It allows air pollution monitoring to be performed with a higher spatial density than is possible with the current reference methods.
- It’s technology agnostic. PAS 4023:2023 allows the use of low-cost sensors for air quality monitoring irrespective of type for measuring gaseous and particulate pollutants, allowing users freedom of choice within the scope of the PAS.
- It supports efficiency and innovation. PAS 4023:2023 can help build users’ knowledge and confidence with air quality monitoring systems and accelerate their adoption of innovations.
