A Review of Air Pollution Monitoring Technology for Ports

As a prerequisite for pollution control, monitoring air pollutants is crucial. In recent years, all walks of life are developing toward intelligence, and the concept of intelligent ports is also the development direction of current port planning. A lot of work such as loading and unloading of port cargo and planning has now achieved intellectual development, and the monitoring of air pollutants in ports also needs to be developed towards intelligence. However, at present, there are not many air pollutant monitoring systems for ports. In order to find monitoring equipment and models that are better suited to the port environment, this paper focuses on the main components of air pollutants in ports (SO₂, NO_X, PM, etc.) and their sources and describes the monitoring methods and principles for these pollutants in ports and on ships, respectively. Regarding monitoring methods, the current application of DOAS (Differential Optical Absorption Spectroscopy) equipment and the monitoring system based on various gas sensors have great development prospects and advantages, based on the monitoring system being more intelligent. At the same time, the use of the same monitoring principle for a variety of pollutants monitoring equipment to a certain extent can save the cost and efficiency of monitoring. In terms of monitoring mode, the combination of manual analysis and automatic analysis will be perfect for the port’s air pollutant monitoring system. This mode can alleviate the embarrassment of the low life of the sensor-based monitoring system to a certain extent, and the data monitored by this mode will be more accurate.