Green Building Bible, Fourth Edition |
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These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment. PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book. |
Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.
Posted By: fostertomHas anyone any idea how quickly, in still air, the droplets are supposed to sink to say waist level.According to that article and other sources I've seen, for aerosol particles (< 5 μm) this can be hours. For larger particles (droplets) it's a lot quicker.
Posted By: barneylimited to about 2m maximum and a short number of secondsGreat - getting somewhere, the Advice is making more sense.
Posted By: barney
So, back to our virus - it can be transmitted by being enclosed in large droplets - very efficient, but limited to about 2m maximum and a short number of seconds
Posted By: barneyPerfumes will move by diffusion as the particle size is very small
Posted By: barneywhy you see ICU staff in double masks, face visors and gowns and gloves
Posted By: philedge
I seem to recall that during lockdown it had been shown that someone sneezing/coughing in a supermarket aisle could transmit the droplets over the shelving and into the next aisle?? There were also statements made by experts in aerodynamics that the turbulence created by a cyclist would likely suspend droplets in their exhaled breath for up to 20 metres behind them. Similarly up to 10 metres behind for a runner.
I would imagine that, unless there was a strong side wind, cyclists and runners could cycle/run shoulder to shoulder with near zero risk of transmission between them whilst there was airflow between them.
Posted By: tonyIn some countries distancing is three feet!