Chart of the Day: Fine Particle Concentration, July 4th vs. Control

Via Bob Collins at MPR, here’s a chart showing fine particle pollution in air for July 4th compared to an average control day:

fireworks chart

Particulate matter is an easy thing to forget about unless it’s not.

For other great 4th of July content, check out some of the fine 4th of July stories from past years…


Rockport, MA

East Side of Saint Paul

Stone Arch Bridge, Minneapolis

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4 Responses to Chart of the Day: Fine Particle Concentration, July 4th vs. Control

  1. Mike Hicks July 3, 2015 at 1:21 pm #

    The background level might be higher this year due to Canadian wildfires. Areas of northwestern Minnesota currently have the worst air quality in the state because of that. If you’ve been smelling something burning lately, it’s quite possibly Canada.

    • Bill Lindeke
      Bill Lindeke July 3, 2015 at 2:00 pm #

      Best Canada tagline ever.

    • Grant Simons July 4, 2015 at 3:48 pm #

      It’s actually Canada’s terrorist attack on the US but it’s so discrete that no one really knows yet.

    • Zach July 6, 2015 at 5:00 pm #

      It’s causing some really interesting sunsets though. Everything gets that golden sunset hue earlier in the day, and as the sun gets lower it turns a very deep red-orange.

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