基于响应曲面法的臭氧生成敏感性分析

准确判断臭氧(O₃)生成敏感性对O₃污染成因分析和防控对策的制定至关重要.首次利用响应曲面方法设计最优试验方案，基于盒子模式模拟结果，快速量化O₃对其前体物变化的响应.结果表明，CO对O₃有正贡献，NO_x和VOCs与O₃呈现显著非线性关系，当φ(VOCs)与φ(NO_x)-13.75]比值大于4.17时，为NO_x控制区，小于4.17时，为VOCs控制区；烯烃为影响O₃生成的关键VOCs组分，当φ(烯烃)与φ(NO_x)-15]比值小于1.10且φ(烯烃)<35×10^-9时，烯烃有利于O₃的生成.响应曲面法在多因素和其交互作用对O₃生成影响的研究中取得了良好效果，为高效判断O₃敏感性提供了新的思路和方法.

Sensitivity Analysis of Ozone Formation Using Response Surface Methodology

Identifying the nonlinear relationship between O₃ and its precursors accurately plays an important role for the policy-making of O₃ pollution control. In this study, the response surface methodology based on the box model simulation was used to quickly and efficiently quantify the O₃ response to their precursors with the optimal experimental design. The results showed that CO had a positive contribution to ozone generation, whereas NO_x and VOCs had a significant nonlinear relationship with O₃. When the ratio of φ(VOCs) toφ(NO_x)-13.75] was greater than 4.17, the ozone formation regime was NO_x-limited and became VOCs-limited when the ratio was less than 4.17. Olefin was the key VOCs'' component to affect the formation of O₃; when the radio of φ(olefin) toφ(NO_x)-15] was less than 1.10 and the value of the φ(olefin) was less than 35×10^-9, olefin went far towards generating O₃. Response surface methodology demonstrated that it can be well used to explore the influence of multiple factors and their interactions on O₃ formation and provides a new approach for efficient O₃ sensitivity analysis.