2 ms·

And male trees upping pm because they’re lonely and looking for love.

• amluto 2y ago
  To be fair, those are large particles, which are neither as dangerous nor as persistent as smaller particles. Unless you’re allergic to them, of course.
  • hinkley 2y ago
    PM2.5 is the really nasty carcinogenic stuff, but pollen size overlaps substantially with other forms of soot and IIRC is a double digit percentage of poor urban air quality. It’s somewhere around fourth or fifth largest source.