Unsafe for everyone
Fine particulates less than 2.5 micrometers across are recognised as hazardous to human populations. The particles are so fine they cannot be easily expelled from the lungs. When the index value of these reaches between 300 to 500 then its is considered unsafe for everyone. Below about 150 its unsafe for sensitive groups. I took these shots one afternoon in Beijing when the rating was 400.
"Above the Road"
I'm glad to be back in NZ. I only lasted an hour out there.
No comments posted.
Recent PostsSunset at O’Neill Bay A little macro, a little creative The 2021 Photo Project Walking in water: First trip to the Pararaha Stream The Waterfalls of Tangoio Reserve What a lot of water: Waipunga Waterfall New Photos added this week A seascape for the shortest day Fun with the Sony a7R Blowing bubbles