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Not just conifers. In Los Angeles, liquidambar trees are planted all over for autumn color, and it turns out that they’re an enormous contributor to smog format
by amluto 2y ago
Not just conifers. In Los Angeles, liquidambar trees are planted all over for autumn color, and it turns out that they’re an enormous contributor to smog formation.
- hinkley 2y agoAnd male trees upping pm because they’re lonely and looking for love.
- amluto 2y agoTo 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 agoPM2.5 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.