Guidebook for Assessing Airport Lead Impacts (2016) / Chapter Skim
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Pages 8-13
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From page 8... ...
8C H A P T E R 5 In December 2010, the EPA established requirements for ambient lead monitoring around facilities known to have substantial lead emissions. These facilities included airports with sufficient piston-powered aircraft activity leading to estimated annual lead emissions of 1.0 ton or more, and industrial facilities with estimated annual lead emissions of 0.5 ton or more.
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From page 9... ...
Assessing Lead Impacts in the Vicinity of Airports 9 as part of ACRP Project 02-34, "Quantifying Aircraft Lead Emissions at Airports." That project led to the release of an emissions inventory development tool for airports as well as a related guidance document. Furthermore, the technical report for that project, ACRP Web-Only Document 21: Quantifying Aircraft Lead Emissions at Airports, documented how the inventory tool could be used in combination with aircraft operations data and air quality models to develop detailed estimates of airborne lead concentrations at and around an airport, as well as the contribution of specific operating modes to those estimated concentrations.
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From page 10... ...
10 Guidebook for Assessing Airport Lead Impacts to ambient lead concentrations at and around the airport. At this particular airport, taxi operations (Figure 3b)
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From page 11... ...
Assessing Lead Impacts in the Vicinity of Airports 11 airports, in addition to the availability of the unleaded AVGAS sought through the FAA research program described previously: • Relocation of run-up areas to reduce the magnitude of lead concentration hot spots; and • Use of unleaded MOGAS in aircraft for which it is a suitable substitute for 100LL AVGAS. Each of these was evaluated, along with the combination of both strategies.
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From page 12... ...
12 Guidebook for Assessing Airport Lead Impacts peak lead concentration by 7% to 31%, use of MOGAS by 19% to 35%, and the combination of the two by 36% to 56%. These findings again underscore the fact that results from one airport should not be generalized to other airports and highlight the need for conducting an airportspecific analysis using the ACRP Project 02-34, "Quantifying Aircraft Lead Emissions at Airports" methodology, or a similar approach, when considering implementation of general aviation aircraft lead control strategies.
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From page 13... ...
Assessing Lead Impacts in the Vicinity of Airports 13 Note: Airport property boundaries are designated by a thick black line; the dark interior line indicates the runway.
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