AQSQID: 340030010

Site Name: Fort Lee Near Road

Location: Fort Lee, NJ

Reporting: True, Located: True

Current AQI: 27.0

Fort Lee NJ, US: 40.85355, -73.9661

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 7 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 6.4 μg/m3 (27) 27.0
 
March 23, 2019, 6 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 2.1 μg/m3 (9) 9.0
 
March 23, 2019, 5 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 18.4 μg/m3 (64) 64.0
 
March 23, 2019, 4 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
March 23, 2019, 3 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 2.1 μg/m3 (9) 11.0
 
March 23, 2019, 2 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 4.8 μg/m3 (20) 20.0
 
March 23, 2019, 1 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 23, 2019, noon 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 0.2 μg/m3 (1) 8.0
 
March 23, 2019, 11 a.m. 11.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 0.0 μg/m3 (0) 10.0
 
March 23, 2019, 10 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (1) N/A -0.9 μg/m3 (0) 6.0
 
March 23, 2019, 9 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 23, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
March 23, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A -0.9 μg/m3 (0) 5.0
 
March 23, 2019, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A -1.0 μg/m3 (0) 4.0
 
March 23, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A -2.9 μg/m3 (0) 4.0
 
March 23, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A -0.1 μg/m3 (0) 5.0
 
March 23, 2019, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 0.0 μg/m3 (0) 6.0
 
March 23, 2019, 2 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 0.9 μg/m3 (4) 6.0
 
March 23, 2019, 1 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A -1.8 μg/m3 (0) 6.0
 
March 23, 2019, midnight 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A N/A 8.0
 
March 22, 2019, 11 p.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 6.3 μg/m3 (26) 26.0
 
March 22, 2019, 10 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
March 22, 2019, 9 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
March 22, 2019, 8 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
March 22, 2019, 7 p.m. 13.0 ppb (12) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 8.2 μg/m3 (34) 34.0
 
March 22, 2019, 6 p.m. 20.0 ppb (19) 8.0 ppb (7) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 5 p.m. 17.0 ppb (16) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 8.9 μg/m3 (37) 37.0
 
March 22, 2019, 4 p.m. 19.0 ppb (18) 6.0 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 3 p.m. 35.0 ppb (32) 13.0 ppb (12) N/A 21.0 ppb (19) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 32.0
 
March 22, 2019, 2 p.m. 30.0 ppb (28) 14.0 ppb (13) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 0.1 μg/m3 (0) 28.0
 
March 22, 2019, 1 p.m. 29.0 ppb (27) 11.0 ppb (10) N/A 17.0 ppb (16) N/A N/A N/A 0.3 ppb (3) N/A -2.9 μg/m3 (0) 27.0
 
March 22, 2019, noon 35.0 ppb (32) 16.0 ppb (15) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (4) N/A 5.7 μg/m3 (24) 32.0
 
March 22, 2019, 11 a.m. 59.0 ppb (55) 31.0 ppb (29) N/A 27.0 ppb (25) N/A N/A N/A 0.4 ppb (4) N/A 9.8 μg/m3 (41) 55.0
 
March 22, 2019, 10 a.m. 52.0 ppb (48) 24.0 ppb (22) N/A 27.0 ppb (25) N/A N/A N/A 0.4 ppb (4) N/A 1.2 μg/m3 (5) 48.0
 
March 22, 2019, 9 a.m. 22.0 ppb (20) 7.0 ppb (6) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
March 22, 2019, 8 a.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
March 22, 2019, 7 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 6 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
March 22, 2019, 5 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 3.1 μg/m3 (13) 13.0
 
March 22, 2019, 4 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 8.8 μg/m3 (37) 37.0
 
March 22, 2019, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 10.9 μg/m3 (45) 45.0
 
March 22, 2019, 2 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
March 22, 2019, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
March 22, 2019, midnight 11.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
March 21, 2019, 11 p.m. 12.0 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
March 21, 2019, 10 p.m. 13.0 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 9 p.m. 16.0 ppb (15) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 9.9 μg/m3 (41) 41.0
 
March 21, 2019, 8 p.m. 21.0 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
March 21, 2019, 7 p.m. 18.0 ppb (17) 2.0 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
March 21, 2019, 6 p.m. 25.0 ppb (23) 5.0 ppb (5) N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (4) N/A 18.7 μg/m3 (64) 64.0
 
March 21, 2019, 5 p.m. 23.0 ppb (21) 5.0 ppb (5) N/A 17.0 ppb (16) N/A N/A N/A 0.3 ppb (3) N/A 13.1 μg/m3 (52) 52.0
 
March 21, 2019, 4 p.m. 35.0 ppb (32) 10.0 ppb (9) N/A 24.0 ppb (22) N/A N/A N/A 0.4 ppb (4) N/A 13.9 μg/m3 (54) 54.0
 
March 21, 2019, 3 p.m. 36.0 ppb (33) 10.0 ppb (9) N/A 26.0 ppb (24) N/A N/A N/A 0.4 ppb (4) N/A 19.8 μg/m3 (67) 67.0
 
March 21, 2019, 2 p.m. 37.0 ppb (34) 10.0 ppb (9) N/A 26.0 ppb (24) N/A N/A N/A 0.4 ppb (4) N/A 15.1 μg/m3 (57) 57.0
 
March 21, 2019, 1 p.m. 45.0 ppb (42) 15.0 ppb (14) N/A 29.0 ppb (27) N/A N/A N/A 0.4 ppb (4) N/A 11.1 μg/m3 (46) 46.0
 
March 21, 2019, noon 53.0 ppb (49) 19.0 ppb (18) N/A 33.0 ppb (31) N/A N/A N/A 0.5 ppb (6) N/A 13.9 μg/m3 (54) 54.0
 
March 21, 2019, 11 a.m. 41.0 ppb (38) 9.0 ppb (8) N/A 30.0 ppb (28) N/A N/A N/A 0.4 ppb (4) N/A 10.1 μg/m3 (42) 42.0
 
March 21, 2019, 10 a.m. 53.0 ppb (49) 18.0 ppb (17) N/A 34.0 ppb (31) N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 21, 2019, 9 a.m. 48.0 ppb (44) 15.0 ppb (14) N/A 32.0 ppb (30) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 44.0
 
March 21, 2019, 8 a.m. 34.0 ppb (31) 6.0 ppb (6) N/A 27.0 ppb (25) N/A N/A N/A N/A N/A 13.8 μg/m3 (54) 54.0
 
March 21, 2019, 7 a.m. 32.0 ppb (30) 3.0 ppb (3) N/A 28.0 ppb (26) N/A N/A N/A 0.3 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
March 21, 2019, 6 a.m. 23.0 ppb (21) 0.0 ppb (0) N/A 23.0 ppb (21) N/A N/A N/A 0.3 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
March 21, 2019, 5 a.m. 23.0 ppb (21) 0.0 ppb (0) N/A 24.0 ppb (22) N/A N/A N/A 0.4 ppb (4) N/A 10.9 μg/m3 (45) 45.0
 
March 21, 2019, 4 a.m. 24.0 ppb (22) 0.0 ppb (0) N/A 24.0 ppb (22) N/A N/A N/A 0.4 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
March 21, 2019, 3 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
March 21, 2019, 2 a.m. 16.0 ppb (15) 0.0 ppb (0) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
March 21, 2019, 1 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, midnight 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 20, 2019, 11 p.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A -2.7 μg/m3 (0) 12.0
 
March 20, 2019, 10 p.m. 11.0 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A N/A 10.0
 
March 20, 2019, 9 p.m. 11.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
March 20, 2019, 8 p.m. 13.0 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 22.6 μg/m3 (73) 73.0
 
March 20, 2019, 7 p.m. 12.0 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
March 20, 2019, 6 p.m. 17.0 ppb (16) 4.0 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 5.1 μg/m3 (21) 21.0
 
March 20, 2019, 5 p.m. 19.0 ppb (18) 7.0 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 19.5 μg/m3 (66) 66.0
 
March 20, 2019, 4 p.m. 25.0 ppb (23) 9.0 ppb (8) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 37.4 μg/m3 (105) 105.0
 
March 20, 2019, 3 p.m. 41.0 ppb (38) 15.0 ppb (14) N/A 25.0 ppb (23) N/A N/A N/A 0.4 ppb (4) N/A 35.0 μg/m3 (99) 99.0
 
March 20, 2019, 2 p.m. 47.0 ppb (44) 19.0 ppb (18) N/A 27.0 ppb (25) N/A N/A N/A 0.4 ppb (4) N/A 39.8 μg/m3 (111) 111.0
 
March 20, 2019, 1 p.m. 167.0 ppb (113) 114.0 ppb (102) N/A 52.0 ppb (48) N/A N/A N/A 0.9 ppb (10) N/A 34.1 μg/m3 (97) 113.0
 
March 20, 2019, noon 163.0 ppb (112) 107.0 ppb (101) N/A 55.0 ppb (51) N/A N/A N/A 1.0 ppb (11) N/A 15.5 μg/m3 (57) 112.0
 
March 20, 2019, 11 a.m. 138.0 ppb (107) 89.0 ppb (87) N/A 48.0 ppb (44) N/A N/A N/A 0.8 ppb (9) N/A 18.8 μg/m3 (64) 107.0
 
March 20, 2019, 10 a.m. 74.0 ppb (71) 32.0 ppb (30) N/A 41.0 ppb (38) N/A N/A N/A 0.5 ppb (6) N/A 19.0 μg/m3 (65) 71.0
 
March 20, 2019, 9 a.m. 59.0 ppb (55) 17.0 ppb (16) N/A 40.0 ppb (37) N/A N/A N/A N/A N/A 13.1 μg/m3 (52) 55.0
 
March 20, 2019, 8 a.m. 35.0 ppb (32) 2.0 ppb (2) N/A 33.0 ppb (31) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
March 20, 2019, 7 a.m. 25.0 ppb (23) 0.0 ppb (0) N/A 25.0 ppb (23) N/A N/A N/A 0.3 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
March 20, 2019, 6 a.m. 27.0 ppb (25) 0.0 ppb (0) N/A 27.0 ppb (25) N/A N/A N/A 0.3 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
March 20, 2019, 5 a.m. 24.0 ppb (22) 0.0 ppb (0) N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A 12.9 μg/m3 (52) 52.0
 
March 20, 2019, 4 a.m. 23.0 ppb (21) 0.0 ppb (0) N/A 23.0 ppb (21) N/A N/A N/A 0.3 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
March 20, 2019, 3 a.m. 21.0 ppb (19) 0.0 ppb (0) N/A 21.0 ppb (19) N/A N/A N/A 0.3 ppb (3) N/A 9.9 μg/m3 (41) 41.0
 
March 20, 2019, 2 a.m. 30.0 ppb (28) 0.0 ppb (0) N/A 30.0 ppb (28) N/A N/A N/A 0.4 ppb (4) N/A 6.1 μg/m3 (25) 28.0
 
March 20, 2019, 1 a.m. 30.0 ppb (28) 2.0 ppb (2) N/A 28.0 ppb (26) N/A N/A N/A 0.4 ppb (4) N/A 5.0 μg/m3 (21) 28.0
 
March 20, 2019, midnight 32.0 ppb (30) 4.0 ppb (4) N/A 27.0 ppb (25) N/A N/A N/A 0.3 ppb (3) N/A -0.8 μg/m3 (0) 30.0
 
March 19, 2019, 11 p.m. 30.0 ppb (28) 5.0 ppb (5) N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A 4.8 μg/m3 (20) 28.0
 
March 19, 2019, 10 p.m. 22.0 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
March 19, 2019, 9 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 5.1 μg/m3 (21) 21.0
 
March 19, 2019, 8 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
March 19, 2019, 7 p.m. 17.0 ppb (16) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 16.0
 
March 19, 2019, 6 p.m. 22.0 ppb (20) 10.0 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) N/A -1.8 μg/m3 (0) 20.0
 
March 19, 2019, 5 p.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 16.4 μg/m3 (59) 59.0
 
March 19, 2019, 4 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 20.8 μg/m3 (69) 69.0
 
March 19, 2019, 3 p.m. 27.0 ppb (25) 11.0 ppb (10) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 20.0 μg/m3 (67) 67.0
 
March 19, 2019, midnight 36.0 ppb (33) 9.0 ppb (8) N/A 26.0 ppb (24) N/A N/A N/A 0.4 ppb (4) N/A 0.1 μg/m3 (0) 33.0
 
March 18, 2019, 11 p.m. 23.0 ppb (21) 3.0 ppb (3) N/A 18.0 ppb (17) N/A N/A N/A 0.3 ppb (3) N/A 4.8 μg/m3 (20) 21.0
 
March 18, 2019, 10 p.m. 21.0 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A -0.8 μg/m3 (0) 19.0
 
March 18, 2019, 9 p.m. 19.0 ppb (18) 4.0 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.2 ppb (2) N/A 10.6 μg/m3 (44) 44.0
 
March 18, 2019, 8 p.m. 19.0 ppb (18) 5.0 ppb (5) N/A 13.0 ppb (12) N/A N/A N/A 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
March 18, 2019, 7 p.m. 19.0 ppb (18) 6.0 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 6 p.m. 25.0 ppb (23) 13.0 ppb (12) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) N/A 2.1 μg/m3 (9) 23.0
 
March 18, 2019, 5 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 9.7 μg/m3 (40) 40.0
 
March 18, 2019, 4 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 12.9 μg/m3 (52) 52.0
 
March 18, 2019, 3 p.m. 25.0 ppb (23) 11.0 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.2 ppb (2) N/A 14.9 μg/m3 (56) 56.0
 
March 18, 2019, 2 p.m. 36.0 ppb (33) 18.0 ppb (17) N/A 17.0 ppb (16) N/A N/A N/A 0.3 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
March 18, 2019, 1 p.m. 73.0 ppb (70) 39.0 ppb (36) N/A 33.0 ppb (31) N/A N/A N/A 0.4 ppb (4) N/A 13.9 μg/m3 (54) 70.0
 
March 18, 2019, noon 154.0 ppb (110) 93.0 ppb (91) N/A 60.0 ppb (56) N/A N/A N/A 0.8 ppb (9) N/A 8.1 μg/m3 (34) 110.0
 
March 18, 2019, 11 a.m. 169.0 ppb (113) 114.0 ppb (102) N/A 54.0 ppb (50) N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 113.0
 
March 18, 2019, 10 a.m. 87.0 ppb (85) 41.0 ppb (38) N/A 45.0 ppb (42) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 85.0
 
March 18, 2019, 9 a.m. 60.0 ppb (56) 16.0 ppb (15) N/A 43.0 ppb (40) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 56.0
 
March 18, 2019, 8 a.m. 42.0 ppb (39) 5.0 ppb (5) N/A 36.0 ppb (33) N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 39.0
 
March 18, 2019, 7 a.m. 41.0 ppb (38) 10.0 ppb (9) N/A 31.0 ppb (29) N/A N/A N/A 0.2 ppb (2) N/A 3.9 μg/m3 (16) 38.0
 
March 18, 2019, 6 a.m. 14.0 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 3.0 μg/m3 (12) 13.0
 
March 18, 2019, 5 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A -0.9 μg/m3 (0) 14.0
 
March 18, 2019, 4 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 2.9 μg/m3 (12) 12.0
 
March 18, 2019, 3 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A -1.8 μg/m3 (0) 10.0
 
March 18, 2019, 2 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 1.9 μg/m3 (8) 9.0
 
March 18, 2019, 1 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A -2.8 μg/m3 (0) 11.0
 
March 18, 2019, midnight 17.0 ppb (16) 2.0 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A N/A 16.0
 
March 17, 2019, 11 p.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) N/A -3.1 μg/m3 (0) 14.0
 
March 17, 2019, 10 p.m. 13.0 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
March 17, 2019, 9 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
March 17, 2019, 8 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 22.6 μg/m3 (73) 73.0
 
March 17, 2019, 7 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A -2.3 μg/m3 (0) 6.0
 
March 17, 2019, 6 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A -2.0 μg/m3 (0) 6.0
 
March 17, 2019, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 8.7 μg/m3 (36) 36.0
 
March 17, 2019, 4 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 15.8 μg/m3 (58) 58.0
 
March 17, 2019, 3 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 2.3 μg/m3 (10) 10.0
 
March 17, 2019, 2 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
March 17, 2019, 1 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 17, 2019, noon 19.0 ppb (18) 4.0 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.2 ppb (2) N/A 1.0 μg/m3 (4) 18.0
 
March 17, 2019, 11 a.m. 17.0 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A 0.2 ppb (2) N/A 1.9 μg/m3 (8) 16.0
 
March 17, 2019, 10 a.m. 18.0 ppb (17) 2.0 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A 0.2 ppb (2) N/A 1.0 μg/m3 (4) 17.0
 
March 17, 2019, 9 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 8.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 21.5 μg/m3 (70) 70.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 0.5 μg/m3 (2) 2.0
 
March 17, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
March 17, 2019, 3 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 17, 2019, 2 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
March 17, 2019, 1 a.m. 16.0 ppb (15) 6.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 2.9 μg/m3 (12) 15.0
 
March 17, 2019, midnight 13.0 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A -3.8 μg/m3 (0) 12.0
 
March 16, 2019, 11 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A -0.1 μg/m3 (0) 8.0
 
March 16, 2019, 10 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 1.9 μg/m3 (8) 9.0
 
March 16, 2019, 9 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
March 16, 2019, 8 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 16, 2019, 7 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 16, 2019, 6 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 10.0
 
March 16, 2019, 5 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
March 16, 2019, 4 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 16, 2019, 3 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A -0.8 μg/m3 (0) 9.0
 
March 16, 2019, 2 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 7.7 μg/m3 (32) 32.0
 
March 16, 2019, 1 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 0.2 μg/m3 (1) 6.0
 
March 16, 2019, noon 13.0 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 16, 2019, 11 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 1.0 μg/m3 (4) 8.0
 
March 16, 2019, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A -1.9 μg/m3 (0) 6.0
 
March 16, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A -2.9 μg/m3 (0) 6.0
 
March 16, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 4.0
 
March 16, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A -1.0 μg/m3 (0) 3.0
 
March 16, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A N/A 4.0