NYC-WTC_000199756

NYC 9/11 Public Portal Document

j Jessica Leighton - RA_sitrepOV21wpd Page 2 I

o Nothing of significance reported at one station (P-2) based on daily average concentrations.

Fresh Kills (Jan 18) - Particulate Monitoring (Dataram)

o No particulate measurements were conducted due to an equipment malfunction.

Fresh Kills (Jan 19) - Particulate Monitoring (Dataram)

o No particulate measurements were conducted due to the weather conditions.

Fresh Kills (Jan 20) - Particulate Monitoring (Dataram)

o Nothing of significance reported at one station (P-2) based on daily average concentrations.

Ambient Air Sampling Locations

NYC / ER (Jan 14 - 16) - Asbestos Monitoring (Particulate Monitoring Stations)

o Monitoring sites include: ParkR^ (Site 1) Chambers St./West St. (Site 2) Public School 154: 333 East 135- St, Bronx (Site 5) Intermediate School 143: 511 West 182— St., Manhattan (Site 6) Public School 274: 800 Bushwick Ave., Brooklyn (Site 7) Public School 44: 80 Maple Parkway, Staten Island (Site 8) Public School 199: 3290 - 48- Ave., Queens (Site 9) o During this period a total of 20 samples were collected from these monitoring sites. o A sample was not collected from Site 7 on January 14 due to an equipment malfunction. o All of the samples were below the TEM AHERA standard.

NYC / ER (Jan 11) - Particulate Monitoring (TEOM PM 2 5)

o Park Row (Site 1) - 24-hr average concentration for this period was 14.41 ug/m\ o Chambers St./West St. (Site 2) - 24-hour average concentration for this period was 15.25 ug/m\ o Wall Street - 24-hour average concentrations for this period was 14.51 ug/m^. o All readings below the National Ambient Air Quality Standard for PM2.5 (65 ug/m’).

CITY_21MC100_002458850

NYC-WTC_000199757