peak concentration (trace atmospheric component)

https://doi.org/10.1351/goldbook.P04456
The highest concentration of a given trace component which was measured with a continuous analyser during a specified sampling period.
Source:
PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2205 (https://doi.org/10.1351/pac199062112167)