Relationship between the Formation of PM<sub>2.5</sub> and Meteorological Factors in Northern China: The Periodic Characteristics of Wavelet Analysis

<div>Time series of daily and hourly trends of NO<sub>2</sub> and O<sub>3</sub> from January 1 to 10, 2016.</div>

Advances in Meteorology

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Figure 12

Figure 12: Relationship between the Formation of PM<sub>2.5</sub> and Meteorological Factors in Northern China: The Periodic Characteristics of Wavelet Analysis 

Figure 12 | Relationship between the Formation of PM2.5 and Meteorological Factors in Northern China: The Periodic Characteristics of Wavelet Analysis 