Background:
Since the “Thirteenth Five-Year Plan”, the concentration of ozone pollution in my country has shown a trend of increasing year by year. In 2020, the average number of good days in 337 cities across the country was 87.0%. The excess days with ozone as the primary pollutant accounted for 37.1% of the total excess days. Second only to PM2.5 (fine particulate matter), which accounts for 51%. And Unlike ozone in the atmosphere, near-ground ozone is a harmful gas. It is also a secondary pollutant. It mainly comes from internal combustion engines, gas emissions from power plants, automobile exhaust and industrial emissions. This releases a range of nitrogen oxide gases (NOx) and volatile organic compounds. We can use an ozone sensor for monitoring.
The role of ozone sensor：
Today, ozone, one of the key control items of the “Ambient Air Quality Standard”, has become a “stumbling block” for my country to win the battle to defend the blue sky. It is imminent to suppress the production of ozone and reduce the concentration of ozone. As for ozone, the control standard of the new national standard is 100 micrograms/cubic meter with an 8-hour daily average concentration. Level 2 is in the range of 160 µg/m3. Inclusion criteria and monitoring.
And in order to accurately monitor ozone gas, effectively reduce ozone concentration. Continue to improve the quality of the atmospheric environment. Jingxun has independently developed an ozone sensor to monitor the ozone concentration in the air. The sensor adopts the principle of electrochemical detection, and the response is fast and sensitive. When ozone diffuses into the sensor, a reduction reaction occurs at the working electrode. An oxidation reaction occurs at the counter electrode, and a tiny current is formed between the counter electrode and the working electrode. This current is proportional to the ozone concentration entering the sensor over a certain range. After processing through the circuit system, the ozone content is calculated.It is important to use ozone monitoring equipment.