Future development trend of atmospheric ozone pollution monitoring

2024-03-20 00:06:51

Even if there are clear skies and blue sky and white clouds, what you see may be "false blue sky", because of the existence of ozone pollution. According to reports, in many cities in China, ozone pollution has already "appeared", especially in the high temperature season in summer, it has greatly surpassed PM2.5, and even replaced it as a major cause of pollution in ZUI, and it generally shows regional pollution characteristics. The trend of significant, increasing concentration year by year, and the number of days exceeding the standard in summer has become one of the main problems that have plagued China's environmental pollution. Therefore, in the case of air pollution control, while attaching importance to smog, it has gradually begun to pay attention to ozone pollution.

Ozone (O), also known as superoxygen, is an allotrope of oxygen (O). At room temperature, it is a light blue gas with a special smell and one of the important pollutants formed by photochemical smog. From the point of view of the nature of ozone, it can both help and harm people. In life, ozone can be used as a strong oxidant, bleach, fur deodorant, air purifier, disinfectant and bactericide; in production, ozone can replace many Catalytic oxidation or high-temperature oxidation simplifies the production process and improves productivity. Our ZUI is also known as the ozone layer or as a barrier to the earth, absorbing a large amount of short-wave radiation, reducing the possibility of human beings being injured by ultraviolet rays. But there are also many harmful effects. High-concentration surface ozone has erosive and damaging effects on the human body, especially the eyes and respiratory tract, and is also harmful to crops or forests. Therefore, relevant ZHENGFU departments have also paid more attention to ozone pollution, and successively issued documents to regulate ozone pollutants.

A few days ago, in order to implement the Environmental Protection Law of the People's Republic of China and the Air Pollution Prevention and Control Law of the People's Republic of China, protect the ecological environment, protect human health, and standardize the first-level calibration operation of ambient air ozone monitoring, we have formulated a clear regulation Level calibration requirements, ozone level standard calibration method and quality assurance and quality control of ozone transfer standards, and is applicable to the value transfer of ozone level standards to ozone transfer standards, ozone monitoring level calibration and quality assurance and quality Controlled "Ambient Air Ozone Monitoring Level 1 Calibration Technical Specification".

The technical specification not only improves the ozone monitoring system in the ambient air, but also supplements the environmental monitoring standard system, clarifying the composition and requirements of the ozone monitoring primary calibration facility, ozone monitoring primary calibration method, result calculation and evaluation, and recalibration time interval The content of other aspects has laid a foundation for the rapid development of atmospheric ozone monitoring, which is extremely beneficial for China to continue to carry out ozone monitoring.

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