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Air Data
Available for Saturday, August 1, 2009
- Real-Time air monitoring (Near Field Zone monitoring) - this type of air
monitoring will determine if dust is migrating outside of the
immediate work area so that additional dust control measures can be
implemented before any dust can move off-site. This
monitoring will consist of continuous, real-time dust
monitoring upwind and downwind of the work zone during all
phases of work with potential for significant release of dust (i.e.,
during soil excavation, backfill, waste placement, and cap
installation.) Real-Time monitoring provides immediate
information on the amount of dust (not just lead) being generated.
Note:
The air monitor that was put out on Friday afternoon downwind of the
Containment Area stopped working at some point prior to Saturday morning at
8 a.m. when the AGC representative was at the Site to check the monitors;
data could not be downloaded from the monitor. A new monitor was put
out to replace the one that was not working on Saturday morning at
approximately 9 a.m.
The perimeter high volume air samplers (no PAM samplers) ran
over the weekend. The samples collected from high volume air samplers #1 and
#3 were sent in for analysis in response to the air monitor having stopped
working. (See Site perimeter monitoring below for results of this
analysis.)
Click on the
links below to view graphs showing the real-time air
monitoring data for August 1, 2009:
Weekend
Non-Working Hours
- Site perimeter monitoring - this kind of air monitoring consists
of ambient air monitoring for lead using the high-volume sampler method,
which is what has been used for the past 20 years at the Site. This sampling
will determine if air lead is being emitted from the Site. Results with this
type of monitoring are not immediate as the air collection filters have to
be sent to a lab for analysis. The sampler draws
air over a filter and then the filter is analyzed for lead content. The
volume of air that is drawn in is also recorded which gives us the results
of micrograms (µg) of lead in cubic meters (m3) of air.
(Click here for a drawing
showing the locations of the high volume air samplers.)
Non-Working Hour Ambient Air Monitoring
Result - result from weekend July 31, 2009 to August 3, 2009
(Click here to go back to the
August 2009 calendar page.)
Page Last Modified
Tuesday March 02, 2010 02:45:28 PM
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