Air quality micro-stations, all-round monitoring systems

As a result of rapid industrialisation, the problem of air pollution is becoming more serious. According to the definition of the International Organisation for Standardisation (ISO), air pollution is a phenomenon in which certain substances are introduced into the atmosphere as a result of human activities or natural processes in sufficient concentrations and for a sufficient period of time to have a consequent negative impact on human comfort, health conditions and the environment. In simple terms, a substance is considered an air pollutant when its quantity, nature and duration of existence are sufficient to have an impact on human beings and other living beings and belongings. And the phenomenon triggered by its presence is known as air pollution.

At present, the characteristics of air pollution in China have changed from the traditional soot-type pollution to complex compound pollution. According to the Ministry of Environmental Protection, although China's energy structure is still dominated by coal, soot pollution still exists as the main type of pollution.

The six key indicators of air quality standards include sulphur dioxide (SO2), nitrogen dioxide (NO2), respirable particulate matter (PM10), ozone (O3), carbon monoxide (CO) and fine particulate matter (PM2.5). In order to monitor and improve air quality, city managers and citizens at home and abroad are increasingly interested in real-time monitoring through the installation of air quality mini-stations.

The Air Quality Mini Station is an all-round monitoring system which is laid out in a point, line and surface manner in the city to realise real-time online monitoring and collection of air quality data. This system mainly serves the environmental management department to help solve the problem of ambient air quality monitoring in the region. It can provide accurate and timely monitoring data on air pollution, help users understand and analyse the ambient air quality in the region, and discover the characteristics and conditions of pollution. These data and technical support are of great value in preventing air pollution.