4 results about "Atmospheric ozone" patented technology

The application discloses a method for atmospheric ozone vertical profile inversion based on a differentiable radiative transfer physical constraint, and comprises the following steps: collecting atmospheric ozone data and auxiliary data to construct a data set; constructing a logarithmic residual inversion network model based on a logarithmic space residual learning mechanism; embedding a differentiable forward simulation operator at the end of the logarithmic residual inversion network model; introducing a physical constraint loss function; training the model through a preheating-fine-tuning two-stage training method based on the data set, and realizing the inversion of the atmospheric ozone vertical profile based on the trained model. The application effectively solves the problem of neural network gradient disappearance or weight imbalance caused by the large concentration span (from ppb level to ppm level) of ozone in the vertical direction.

The invention provides an atmospheric ozone pollution regulation and control method, device and equipment based on health protection, and belongs to the field of atmospheric pollution, the method comprises the following steps: acquiring the pollutant concentration of air in a target area, simulating an atmospheric chemical reaction process, quantifying the concentrations of intermediate substances and O3, and determining precursors; determining an emission source of the precursor based on the species concentration matrix of the precursor and a preset emission list, and further determining an emission source of an intermediate substance; obtaining health risk parameters, and determining a comprehensive health risk based on the health risk parameters and the concentrations of the intermediate substances, O3, VOCs and NOx; according to a preset emission reduction requirement, the emission reduction path is optimized with the purpose of minimizing the comprehensive health risk, and the optimal emission reduction path is determined under the condition that the comprehensive health risk is smaller than a preset threshold value. In this way, it is ensured that the O3 concentration can be reduced through regulation and control measures, and harmful intermediate accumulation caused by single emission reduction is avoided.

This invention discloses a method and apparatus for precise source tracing and analysis of atmospheric ozone pollution. Based on the concentration data of each VOC species among multiple species monitored at ambient air quality monitoring stations, the ozone generation potential of each species is determined; the ozone generation reactivity of each species is determined; key VOC species for ozone generation are screened based on both ozone generation potential and ozone generation reactivity; mobile VOC monitoring is conducted around the ambient air quality monitoring stations, and automatic offline sampling and laboratory analysis are performed at high-value TVOC sites; key pollution sources for ozone generation at the ambient air quality monitoring stations are identified and subject to control. This invention provides a more comprehensive analysis of atmospheric ozone pollution, accurately identifying specific pollution sources and better providing technical support for environmental management.

Device for measuring atmospheric ozone and nitrogen dioxide concentrations. Device (1) for measuring atmospheric ozone and nitrogen dioxide concentrations, the device comprising a data acquisition module (5) having first (10) and second (15) identical metal oxide resistive sensors configured to measure total atmospheric nitrogen oxide and ozone concentrations, the first sensor (10) being covered with an ozone-tight, nitrogen dioxide-permeable filter (30). Figure for the abstract: Fig. 1