Edit post Follow this blog Administration + Create my blog

Published by jack elliot

The virus is blowing in the wind

airborne viruses can spread far and wide

Keeping at arm's length won't protect you

from catching an infectious disease, 

Coronavirus has been found 

on wee little particles of air pollution

by scientists

that were looking whether this could

enable it to be carried over much longer distances and  then increase the number of people infected.

This  investigation has just started

 and it is not yet known

if the virus remains viable on pollution particles and in sufficient quantity to cause disease.


 The usual standard techniques

to collect outdoor air pollution samples

at two Italian sites

 have identified a gene highly specific to Covid-19 in multiple samples.

This  detection  of  this Covid-19 was confirmed by blind testing at an independent laboratory.

It is most  important to investigate if the virus  then could be carried  much more widely by air pollution.

Those air pollution particles 

with the covid-19 in the air

spreading the virus even more

than was suspected before.

 Those higher levels of particle pollution

could explain higher rates of infection

in parts of northern Italy

before a lockdown was imposed, 

This region in Italy

is one of the most polluted in Europe.


Many experts agree this idea  could be plausible and certainly requires  more investigations.



Other scientists have previously found

that when they looked at air pollution particles they found find microbes

 and that pollution is likely to have carried

the viruses causing bird flu,

measles and foot-and-mouth disease

over considerable distances.

The potential role of air pollution particles

is linked to the broader question

of how the coronavirus is transmitted.

Large virus-laden droplets from infected people’s coughs and sneezes fall to the ground within a metre or two.

But much smaller droplets, less than 5 microns in diameter, can remain in the air for minutes to hours and travel further.

Unsure as to if these tiny airborne droplets can cause coronavirus infections, 

though they know the coronavirus in 2003 {Sars} was spread by the air

and that the new virus can remain viable

for hours  in tiny droplets.

the importance of potential airborne transmission, and the possible boosting role

of pollution particles,

mean it must not be ruled out without evidence.


It is perhaps not surprising

that while suspended in air,

the small droplets could combine with background urban particles and be carried around.

the virus had been detected in tiny droplets collected indoors in China.

Wee little tiny droplets

between 0.1 and 1 micron

may travel further

when coalesced with pollution particles

up to 10 microns than on their own.

This is because the combined particle is larger

and less dense than the droplet

and can remain buoyed by the air for longer.

The pollution particle is like a micro-airplane

and the passengers are the droplets,



This  idea seems plausible.

But that is the bottom line at the moment,

and plausible [particle] interactions

are not always biologically viable

and may have no effect in the atmosphere.

 Other research has indicated the links between the large number of  Covid-19 deaths

and with the high level of air pollution

 before the pandemic.


Long-term exposure to dirty air

is known to damage lung health,

which could make people

more vulnerable to Covid-19.


It is a the myth 

 that viruses emitted from humans

only travel a metre in the air.

 Those droplets carring viruses

are dispersed in the air

when people speak,






When a droplet  of Covid-19 dries in the air the residue is carried in the air, and therefore there is a risk that people can inhale that air and become infected.

 A droplet drying on a surface

could be infectious

but the greater danger was droplets drying in the air.

A droplet can travel for 10cm

before it dries in the air,

it doesn't immediately fall to the ground.


 one person infected with the disease

could easily spread the virus by simply breathing.



To be informed of the latest articles, subscribe:
Comment on this post
Stay save Jack. I'm 56 with asthma so I've been staying away from everyone.
staying home is great advice