NYC-WTC_000231976

NYC 9/11 Public Portal Document

Section 2 - Ambient Air Monitoring Program Revision No.: 0 130 Liberty Street Deconstruction Plan Date: September 7, 2005 Lower Manhattan Development Corporation

Table 5. Phase II - Structural Deconstruction Phase Sampling and Analysis Summary Location Parameter(s) Sample Frequency Analysis Method Site Area Mercury (vapor/gas) Each Day Lumex, portable mercury analyzer Site Area Visible dust emissions Each Day Visual observation Ground/Street 1. Asbestos Each Day (asbestos and 1. TEM/SEM Level 2. Silica silica are sampled during 2. XRD (4 Locations) work shift) 3. Metals Each Day (24 hr. Basis) 3. ICP/MS 4. PCDDs/PCDFs 4. HRGC/HRMS 5. PAHs 5. GC/MS 6. PCBs 6. GC/ECD 7. Mercury (total) 7. lodated Carbon Trap/CVAFS 8. PMio Continuously “Real-Time” 8. EB AM/Gravimetric 9. PM2.5 Each Day (PMm and PM2 5 9. EB AM/Gravimetric on 24 hour basis at each location; PMio and PM2.5 reference sampler at 1 location per day on 24- hour basis with location changed monthly) Off-site Roof Top 1. Asbestos Each Day (asbestos and 1. TEM/SEM and Scaffolding 2. Silica silica are sampled during 2. XRD (4 locations on roof work shift) top and 4 locations 3. Metals Each Day (24 hr. Basis) 3. ICP/MS on scaffolding)* 4. PCDDs/PCDFs 4. HRGC/HRMS 5. PAHs 5. GC/MS 6. PCBs 6. GC/ECD 7. Mercury (total) 7. lodated Carbon Trap/CVAFS 8. PMio Continuously “Real-Time” 8. EB AM/Gravimetric 9. PM2.5 Each Day (PMio and PM2.5 9.EB AM/Gravimetric on 24 hour basis at each location; PMio and PM2.5 reference sampler at 1 location per day on 24- hour basis with location changed monthly) * - If Phase I Asbestos and COPC Abatement proceeds below the scaffold monitors, then additional air monitoring for metals utilizing NIOSH Methods will be conducted at the exhaust manifolds on the lowest elevation of the work area grouping.

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NYC-WTC_000231999