When I looked there was at least one big pile just across the fence that could have been the source of the problem.
Anyway, my colleague Richard raised this at the City Council's environmental committee earlier this month.
The answer he got is long so I have pasted some of it below (although full minutes are available on www.liverpool.gov.uk)
(Extract from minutes begins)
Questions submitted by Councillor Richard Oglethorpe
i. Associated British Ports Site (APB).
Can the Cabinet Member please state what action is being
taken by the council to protect the health of residents in the
Cressington Heath estate who are currently experiencing
problems caused by breathing in material blown from the
Associated British Ports site?
. It was explained that the
material in question was dust from the stockpiling of gravel by
Armitts who lease land from ABP.
The gravel dust is of a size that would not be ingested i.e. too big
in particle size that would be blocked by natural body defences
i.e. ears, nose and mouth. Only particles less than 10 micron in
diameter would be a concern i.e. invisible to the naked eye and
can be easily ingested, and they would not be associated with
this type of dust.
The District Officer had a further meeting with ABP and Armitts
and agreement was reached that Armitts would monitor the
situation. ABP manager asked the complainant to contact him
directly in future if any similar incidents occurred so that a swift
response could be given. The District Officer is happy with this
approach but has asked the ABP manager to keep him in the
loop if such events occurred.
were received in May 2011 and October 2011 from a different
source to the most recent complaint about dust, but this was
from the other side to the ABP site in Garston.
If there is a recurrence then the service will look at some dust
monitoring for a limited period to ascertain nature of the dust and
its possible health impacts.