Location
Prec.
Flask Results
10-15 ¢/l
Date
Street Samples
58th & Tenth Ave.
Prec.
1/23/57
1545
93rd & Riverside Dr.
Prec.
1/29/57
1330
30
1332
180
1/30/57
1110
2/6/57
1400
1402
120
120
110
120
1322
190
Cc.
Park
-
Lot
None
L32nd & Twelfth Ave.
None
1/30/57
C. Park - 7éend St. Exit
None
2/6/57
1331
60
70
1323
1324
70
100
1430
160 |
1432
100
140
1431
Building Samples
Warehouse A - lst Floor
None
12/11/56
1hks
LES
Office A*
Office A
None
12/13/56
1545
None
1/7/57
1/10/57
1/15/57
Office A*
Office A
Prec.
Prec.
Apartment A
None
1545
1546
1547
1530
1531
1532
1436
1437
390
390
270
180
160
230
120
130
150
neler
1438
L402
1500
1501
1502
130
70
70
12/20/56
1343
1344
1345
1401
1402
10
380
370
270
330
2/7/57
190
160