Today, Mar 27 2022, it appears radiation levels in Ukraine are a little higher. Has anyone else noticed this?

I'm seeing a discrepancy between WINDY NO2 and US AirNow NO2 reports for Los Angeles California.

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AIRNOW: https://www.airnow.gov/?city=Los Angeles&state=CA&country=USA

Today, Mar 27 2022, it appears radiation levels in Ukraine are a little higher. Has anyone else noticed this?