NYC-WTC_000234627

NYC 9/11 Public Portal Document

____________________________ STUYVESANT HIGH SCHOOL____________________________ Respirable Particulates Concentrations and Ambient area air sample TEM results for asbestos Date Total Outdoor Range of Number of Number of Number of Results of TEM Number Readings indoor readings readings air samples asbestos analysis of readings >40 pg/m’ to < > 65 pg/m'’ collected for (sti-ucturcs/mm2) readings 65 pg/ni^ (24 hrs asbestos (Area elearance collected (24 hrs average) TEM criteria <70 average) analysis structurcs/mm2) 1/11/02 127 26 and 57 15-34 0 0 21 No struclures Detected 1/12/02 No respirable particulate readings were collected - Weekend 21 No structures Detected 1/13/02 No respirable particulate readings were collected - Weekend 21 No structures Detected 1/14/02 127 29 and 35 4-27 0 0 21 No structures Detected 1/15/02 127 79 and 83 16-71 60 3 21 No structures Detected 1/16/02 127 12 and 13 4-23 0 0 21 No structures Detected 1/17/02 127 45 and 53 10-40 0 0 21 No structures Detected 1/18/02 127 27 and 34 7-34 0 0 21 No structures Detected 1/19/02 No respirable parliculale readings were collecled - Weekend 21 No struclures Detected 1/20/02 _______No respirable particulate readings were collected - Weekend______ 21 No structures Detected 1/21/02 No respirable particulate readings were collected - Martin Luther King Dav 21 No structures Detected 1/22/02 100 21 and 21 10-26 0 0 21 No structures Detected 1/23/02 98 29 and 30 10 - 22 0 0 21 No structures Detected 1/24/02 126 62 7-25 0 0 21 No struclures Detected 1/25/02 115 62 and 64 7 - 18 0 0 21 No structures Detected 1/26/02 No respirable parliculale readings were collecled - Weekend 21 No siruclures Detected 1/27/02 No respirable particulate readings were collected - Weekend 21 No structures Detected 1/28/02 107 69 and 72 8-43 2 0 21 No structures Detected 1/29/02 106 71 and 77 10 - 39 0 0 21 No structures Detected 1/30/02 105 54 and 62 17 - 32 0 0 21 No structures Detected 1/31/02 104 21 and .31 12-35 0 0 21 No structures Detected 2/1/02 9.3 3 I a nd 36 15-32 0 I) 21 No structures Detected 2/2/02 No respirable parliculale readings were collecled - Weekend 21 No siruclures Delected 2/3/02 No respirable particulate readings were collected - Weekend 21 No struclures Detected 2/4/02 121 33 and 36 14-25/19 0 0 21 No structures Detected 2/5/02 2 17-22 Io (24-liour (Dust Traki 02/06/05 reading) 3.47-9.03 (MEM)

2/5/02 124 42 and 48 11-23/17 0 0 21 No structures Detected 2/6/02 12.3 32 and 36 14-22/18 0 0 21 No structures Detected 2/7/02 121 34 and 38 13-21/17 0 0 21 No structures Detected 2/8/02 121 41 and 56 13-21/17 0 0 21 No structures Detected 2/9/02 No respirable parliculale readings were collecled - Weekend 21 No siruclures Delected 2/10/02 No respirable particulate readings were colleclcd - Weekend 21 No structures Detected 2/11/02 121 36 and 38 10-21 / 16 0 0 21 No structures Detected 02/12/02 121 28 and 35 10-19/15 0 0 21 No structures Detected 02/13/02 121 29 and 31 12-19/16 0 0 21 No structures Detected 6 settled dust (bulk samples analyzed by PLM) were collected. No asbestos fibers were delected. 02/14/02 121 31 and 35 8-19/14 u u 21 No structures Detected 02/15/02 121 32 and 36 11 19/15 21 No structures Detected 02/16/02 No respirable parliculale readings were collected - Weekend 21 No structures Detected 02/17/02 No respirable particulate readings were collected - Weekend 21 No structures Detected 02/18/02 101 26 and 28 3 - 14/6 0 0 21 No structures Detected 02/19/02 101 27 and 31 4 - 10 /5 0 0 21 No structures Detected 02/20/02 101 25 and 31 4-17/7 0 0 21 No structures Detected 02/21/02 101 20 and 22 4-12/6 0 0 21 No struclLucs Detected 02/22/02 101 39 and 43 10-21/14 0 0 21 No structures Detected 02/23/02 21 No struclures Delected 02/24/02 21 No structures Detected 02/25/02 124 32 and 35 10-22/ 16 0 0 21 No structures Detected 02/26/02 120 26 and 29 10-21/16 0 0 21 No struclures Detected

CITY_21MC100_00329294S

NYC-WTC_000234630