As pollution levels continue to rise, how important is it to monitor urban air quality?

Air pollution continues to be a major health hazard to the public worldwide. The World Health Organization (WHO) estimated that 91% of the world population were living in places where air quality levels exceed WHO limits.Meanwhile, many countries, especially developing countries, are rapidly becoming urbanized. In 2018, 55% of the global population lived in cities, and this percentage is projected to reach 68% by 2050. Therefore, it is of great significance to monitor the urban air quality to protect public health.We can use air quality monitoring equipment for monitoring.

What impact can the poisonous gasses in car exhaust fumes have on individuals?

Although many sources contribute to urban air pollution, road transport is believed to be the single largest source of air pollutants. Car exhaust gases contain a number of harmful emissions, such as carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx) and particulate matter (PM). These emissions are very toxic and carcinogenic to humans, with PM being the most closely associated with increased cancer risks, especially lung cancer. Some people are more sensitive to air pollution than others, such as children, seniors, pregnant women and those with heart and lung conditions.

Why is it so challenging, with current technology, to determine whether a vehicle is high-emitting or not?

The biggest challenge when it comes to determining whether a vehicle is high-emitting is associated with the costs and resources required to screen out the high-emitting vehicles.

The conventional method is to test a vehicle using a chassis dynamometer in a laboratory, which requires significant time, manpower and costs for each vehicle. Although laboratory emission testing is highly accurate, such a method is not feasible for a city-wide program, as there are so many vehicles in one city. For example, Sydney had over 5 million registered vehicles in 2021.

In addition to costs, laboratory testing is also not convenient for vehicle owners as they have to drive their vehicles to a designated test center. On the other hand, on-road remote sensing technology provides a rapid, non-invasive, in-situ, and cost-effective method to measure the emission levels of on-road vehicles when they pass by a measurement site.

JXCT air quality monitoring equipment

Gas analyzer is a gas sensor independently developed by Jingxun Unimpeded using different detection principles for multi-gas detection. The gas detector adopts microcomputer analysis, which can detect the concentration of NOx, SO2, CO2, CO, O3 and O2. Gas analyzer is suitable for gas detection in thermal power plant, steel plant, non-ferrous metal smelter, aluminum smelter, cement plant, phosphate fertilizer plant, nitric acid plant, sulfuric acid plant, petrochemical, chemical fiber, industrial furnace, boiler, civil heating boiler and other occasions.

Indoor CO detector

The CO alarm adopts imported first-line major brand chemical sensors, which have the characteristics of rapid and sensitive response, strong anti-interference ability, long life, high precision, high repeatability and high stability. The carbon monoxide alarm detector is suitable for detecting confined living places: The concentration of carbon monoxide in agricultural greenhouses, production workshops, indoor barbecues, agricultural breeding and other environments.