AQSQID: 340410007

Site Name: Columbia

Location: Warren Co, NJ

Reporting: True, Located: True

Current AQI: 109.0

Warren Co NJ, US: 40.924606, -75.067825

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 20, 2019, 4 a.m. 150.0 ppb (109) 112.0 ppb (102) N/A 37.0 ppb (34) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 16.5 μg/m3 (60) 109.0
 
March 20, 2019, 3 a.m. 150.0 ppb (109) 111.0 ppb (102) N/A 38.0 ppb (35) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 15.8 μg/m3 (58) 109.0
 
March 20, 2019, 2 a.m. 105.0 ppb (101) 67.0 ppb (64) N/A 38.0 ppb (35) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 14.0 μg/m3 (54) 101.0
 
March 20, 2019, 1 a.m. 82.0 ppb (80) 42.0 ppb (39) N/A 39.0 ppb (36) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 13.7 μg/m3 (54) 80.0
 
March 20, 2019, midnight 52.0 ppb (48) 13.0 ppb (12) N/A 38.0 ppb (35) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 11.2 μg/m3 (47) 48.0
 
March 19, 2019, 11 p.m. 34.0 ppb (31) 12.0 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 7.3 μg/m3 (30) 31.0
 
March 19, 2019, 10 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 4.3 μg/m3 (18) 30.0
 
March 19, 2019, 9 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A N/A 34.0
 
March 19, 2019, 8 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 2.4 μg/m3 (10) 33.0
 
March 19, 2019, 7 p.m. 16.0 ppb (15) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0
 
March 19, 2019, 6 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.1 μg/m3 (9) 30.0
 
March 19, 2019, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 1.5 μg/m3 (6) 34.0
 
March 19, 2019, 4 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
March 19, 2019, 3 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.5 μg/m3 (6) 32.0
 
March 19, 2019, midnight 31.0 ppb (29) 6.0 ppb (6) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 18, 2019, 11 p.m. 25.0 ppb (23) 8.0 ppb (7) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 23.0
 
March 18, 2019, 10 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.5 μg/m3 (10) 30.0
 
March 18, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A N/A 34.0
 
March 18, 2019, 8 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 4.0 μg/m3 (17) 29.0
 
March 18, 2019, 7 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 5.8 μg/m3 (24) 32.0
 
March 18, 2019, 6 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.1 μg/m3 (9) 30.0
 
March 18, 2019, 5 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.3 μg/m3 (1) 32.0
 
March 18, 2019, 4 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A -0.6 μg/m3 (0) 30.0
 
March 18, 2019, 3 p.m. 11.0 ppb (10) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
March 18, 2019, 2 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 5.3 μg/m3 (22) 26.0
 
March 18, 2019, 1 p.m. 33.0 ppb (31) 19.0 ppb (18) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A N/A 31.0
 
March 18, 2019, noon 62.0 ppb (59) 37.0 ppb (34) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 9.6 μg/m3 (40) 59.0
 
March 18, 2019, 11 a.m. 59.0 ppb (55) 33.0 ppb (31) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 8.1 μg/m3 (34) 55.0
 
March 18, 2019, 10 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 18, 2019, 9 a.m. 49.0 ppb (45) 21.0 ppb (19) N/A 27.0 ppb (25) N/A N/A 2.0 ppb (2) N/A N/A 10.4 μg/m3 (43) 45.0
 
March 18, 2019, 8 a.m. 123.0 ppb (104) 88.0 ppb (86) N/A 34.0 ppb (31) N/A N/A 0.0 ppb (0) N/A N/A 10.9 μg/m3 (45) 104.0
 
March 18, 2019, 7 a.m. 61.0 ppb (57) 29.0 ppb (27) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 12.2 μg/m3 (50) 57.0
 
March 18, 2019, 6 a.m. 50.0 ppb (46) 19.0 ppb (18) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 11.3 μg/m3 (47) 47.0
 
March 18, 2019, 5 a.m. 36.0 ppb (33) 11.0 ppb (10) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A N/A 33.0
 
March 18, 2019, 4 a.m. 42.0 ppb (39) 13.0 ppb (12) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 5.6 μg/m3 (23) 39.0
 
March 18, 2019, 3 a.m. 81.0 ppb (79) 45.0 ppb (42) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 4.8 μg/m3 (20) 79.0
 
March 18, 2019, 2 a.m. 40.0 ppb (37) 17.0 ppb (16) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 5.3 μg/m3 (22) 37.0
 
March 18, 2019, 1 a.m. 16.0 ppb (15) 2.0 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 18, 2019, midnight 18.0 ppb (17) 5.0 ppb (5) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 17, 2019, 11 p.m. 28.0 ppb (26) 10.0 ppb (9) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 17, 2019, 10 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.1 μg/m3 (21) 27.0
 
March 17, 2019, 9 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
March 17, 2019, 8 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 2.6 μg/m3 (11) 32.0
 
March 17, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 0.7 μg/m3 (3) 34.0
 
March 17, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A -1.7 μg/m3 (0) 33.0
 
March 17, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A -1.0 μg/m3 (0) 32.0
 
March 17, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.7 μg/m3 (3) 32.0
 
March 17, 2019, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.4 μg/m3 (10) 31.0
 
March 17, 2019, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 6.1 μg/m3 (25) 30.0
 
March 17, 2019, 1 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A N/A 28.0
 
March 17, 2019, noon 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.6 μg/m3 (2) 27.0
 
March 17, 2019, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A -0.1 μg/m3 (0) 28.0
 
March 17, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 0.5 μg/m3 (2) 2.0
 
March 17, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 1.7 μg/m3 (7) 29.0
 
March 17, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 5.7 μg/m3 (24) 29.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.7 μg/m3 (7) 28.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A N/A 31.0
 
March 17, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 4.3 μg/m3 (18) 32.0
 
March 17, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 4.1 μg/m3 (17) 30.0
 
March 17, 2019, 2 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
March 17, 2019, 1 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 17, 2019, midnight 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 16, 2019, 11 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 5.3 μg/m3 (22) 28.0
 
March 16, 2019, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.9 μg/m3 (16) 30.0
 
March 16, 2019, 9 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A N/A 29.0
 
March 16, 2019, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.1 μg/m3 (0) 32.0
 
March 16, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 0.2 μg/m3 (1) 34.0
 
March 16, 2019, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
March 16, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 4.9 μg/m3 (20) 33.0
 
March 16, 2019, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A -0.5 μg/m3 (0) 33.0
 
March 16, 2019, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A -1.1 μg/m3 (0) 32.0
 
March 16, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A -2.1 μg/m3 (0) 32.0
 
March 16, 2019, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A N/A 32.0
 
March 16, 2019, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.1 μg/m3 (13) 27.0
 
March 16, 2019, 11 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.7 μg/m3 (11) 23.0
 
March 16, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
March 16, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.5 μg/m3 (15) 26.0
 
March 16, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A 7.7 μg/m3 (32) 32.0
 
March 16, 2019, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 6.5 μg/m3 (27) 28.0
 
March 16, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.9 μg/m3 (16) 27.0
 
March 16, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A N/A 25.0
 
March 16, 2019, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 12.6 μg/m3 (51) 51.0
 
March 16, 2019, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 22.1 μg/m3 (71) 71.0
 
March 16, 2019, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 24.7 μg/m3 (77) 77.0
 
March 16, 2019, 1 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 14.3 μg/m3 (55) 55.0
 
March 16, 2019, midnight 42.0 ppb (39) 19.0 ppb (18) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 15, 2019, 11 p.m. 28.0 ppb (26) 11.0 ppb (10) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 15, 2019, 10 p.m. 27.0 ppb (25) 9.0 ppb (8) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 12.7 μg/m3 (51) 51.0
 
March 15, 2019, 9 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A N/A 8.0
 
March 15, 2019, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
March 15, 2019, 7 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
March 15, 2019, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 9.3 μg/m3 (39) 39.0
 
March 15, 2019, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 15, 2019, 4 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 15, 2019, 3 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 15, 2019, 2 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 15, 2019, 1 p.m. 7.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A N/A 26.0
 
March 15, 2019, noon 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
March 15, 2019, 11 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.1 μg/m3 (9) 25.0
 
March 15, 2019, 10 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
March 15, 2019, 9 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) N/A N/A 5.8 μg/m3 (24) 25.0
 
March 15, 2019, 8 a.m. 108.0 ppb (101) 78.0 ppb (76) N/A 29.0 ppb (27) N/A N/A 14.0 ppb (11) N/A N/A 13.8 μg/m3 (54) 101.0
 
March 15, 2019, 7 a.m. 95.0 ppb (94) 62.0 ppb (59) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 17.9 μg/m3 (63) 94.0
 
March 15, 2019, 6 a.m. 80.0 ppb (78) 49.0 ppb (45) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 20.0 μg/m3 (67) 78.0
 
March 15, 2019, 5 a.m. 81.0 ppb (79) 47.0 ppb (44) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 79.0
 
March 15, 2019, 4 a.m. 91.0 ppb (89) 54.0 ppb (50) N/A 36.0 ppb (33) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 17.8 μg/m3 (62) 89.0
 
March 15, 2019, 3 a.m. 141.0 ppb (108) 94.0 ppb (93) N/A 46.0 ppb (43) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 16.1 μg/m3 (59) 108.0
 
March 15, 2019, 2 a.m. 109.0 ppb (102) 62.0 ppb (59) N/A 46.0 ppb (43) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 14.2 μg/m3 (55) 102.0
 
March 15, 2019, 1 a.m. 90.0 ppb (88) 43.0 ppb (40) N/A 46.0 ppb (43) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 12.9 μg/m3 (52) 88.0
 
March 15, 2019, midnight 68.0 ppb (65) 25.0 ppb (23) N/A 42.0 ppb (39) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 12.6 μg/m3 (51) 65.0
 
March 14, 2019, 11 p.m. 44.0 ppb (41) 10.0 ppb (9) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 10.6 μg/m3 (44) 44.0
 
March 14, 2019, 10 p.m. 30.0 ppb (28) 7.0 ppb (6) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 14, 2019, 9 p.m. 15.0 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A N/A 35.0
 
March 14, 2019, 8 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 6.1 μg/m3 (25) 40.0
 
March 14, 2019, 7 p.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 14, 2019, 6 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 14, 2019, 5 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 3.9 μg/m3 (16) 32.0
 
March 14, 2019, 4 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 4.4 μg/m3 (18) 33.0
 
March 14, 2019, 3 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
March 14, 2019, 2 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 7.5 μg/m3 (31) 31.0
 
March 14, 2019, 1 p.m. 58.0 ppb (54) 33.0 ppb (31) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A N/A 54.0
 
March 14, 2019, noon 91.0 ppb (89) 60.0 ppb (56) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 16.0 μg/m3 (59) 89.0
 
March 14, 2019, 11 a.m. 150.0 ppb (109) 116.0 ppb (103) N/A 33.0 ppb (31) N/A 2.0 ppb (3) N/A N/A N/A 16.4 μg/m3 (59) 109.0
 
March 14, 2019, 10 a.m. 170.0 ppb (113) 134.0 ppb (106) N/A 34.0 ppb (31) N/A 2.0 ppb (3) N/A N/A N/A 15.4 μg/m3 (57) 113.0
 
March 14, 2019, 9 a.m. 104.0 ppb (101) 71.0 ppb (68) N/A 32.0 ppb (30) N/A N/A 0.0 ppb (0) N/A N/A 15.5 μg/m3 (57) 101.0
 
March 14, 2019, 8 a.m. 92.0 ppb (90) 59.0 ppb (55) N/A 32.0 ppb (30) N/A N/A 0.0 ppb (0) N/A N/A 12.4 μg/m3 (51) 90.0
 
March 14, 2019, 7 a.m. 82.0 ppb (80) 52.0 ppb (48) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 9.6 μg/m3 (40) 80.0
 
March 14, 2019, 6 a.m. 29.0 ppb (27) 9.0 ppb (8) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 6.3 μg/m3 (26) 27.0
 
March 14, 2019, 5 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
March 14, 2019, 4 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 14, 2019, 3 a.m. 28.0 ppb (26) 7.0 ppb (6) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 15.7 μg/m3 (58) 58.0
 
March 14, 2019, 2 a.m. 74.0 ppb (71) 33.0 ppb (31) N/A 40.0 ppb (37) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 21.4 μg/m3 (70) 71.0
 
March 14, 2019, 1 a.m. 81.0 ppb (79) 43.0 ppb (40) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 19.2 μg/m3 (65) 79.0
 
March 14, 2019, midnight 18.0 ppb (17) 3.0 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 13, 2019, 11 p.m. 15.0 ppb (14) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 13, 2019, 10 p.m. 12.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 11.3 μg/m3 (47) 47.0
 
March 13, 2019, 9 p.m. 12.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A N/A 30.0
 
March 13, 2019, 8 p.m. 14.0 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 13, 2019, 7 p.m. 14.0 ppb (13) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
March 13, 2019, 6 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 4.9 μg/m3 (20) 32.0
 
March 13, 2019, 5 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 3.7 μg/m3 (15) 32.0
 
March 13, 2019, 4 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 3.3 μg/m3 (14) 32.0
 
March 13, 2019, 3 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
March 13, 2019, 2 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 10.8 μg/m3 (45) 45.0
 
March 13, 2019, 1 p.m. 32.0 ppb (30) 15.0 ppb (14) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A N/A 30.0
 
March 13, 2019, noon 129.0 ppb (105) 96.0 ppb (95) N/A 32.0 ppb (30) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 14.2 μg/m3 (55) 105.0
 
March 13, 2019, 11 a.m. 116.0 ppb (103) 86.0 ppb (84) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 13.7 μg/m3 (54) 103.0
 
March 13, 2019, 10 a.m. 133.0 ppb (106) 102.0 ppb (100) N/A 30.0 ppb (28) N/A 2.0 ppb (3) N/A N/A N/A 15.4 μg/m3 (57) 106.0
 
March 13, 2019, 9 a.m. 141.0 ppb (108) 106.0 ppb (101) N/A 34.0 ppb (31) N/A N/A 0.0 ppb (0) N/A N/A 14.7 μg/m3 (56) 108.0
 
March 13, 2019, 8 a.m. 96.0 ppb (95) 64.0 ppb (61) N/A 31.0 ppb (29) N/A N/A 0.0 ppb (0) N/A N/A 15.2 μg/m3 (57) 95.0
 
March 13, 2019, 7 a.m. 105.0 ppb (101) 72.0 ppb (69) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 14.7 μg/m3 (56) 101.0
 
March 13, 2019, 6 a.m. 88.0 ppb (86) 53.0 ppb (49) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 13.6 μg/m3 (53) 86.0
 
March 13, 2019, 5 a.m. 84.0 ppb (82) 50.0 ppb (46) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 82.0
 
March 13, 2019, 4 a.m. 50.0 ppb (46) 20.0 ppb (19) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 13, 2019, 3 a.m. 103.0 ppb (100) 64.0 ppb (61) N/A 37.0 ppb (34) N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 10.6 μg/m3 (44) 100.0
 
March 13, 2019, 2 a.m. 54.0 ppb (50) 19.0 ppb (18) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 10.0 μg/m3 (42) 50.0
 
March 13, 2019, 1 a.m. 31.0 ppb (29) 11.0 ppb (10) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 13.9 μg/m3 (54) 54.0
 
March 13, 2019, midnight 36.0 ppb (33) 12.0 ppb (11) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 12, 2019, 11 p.m. 31.0 ppb (29) 10.0 ppb (9) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 12, 2019, 10 p.m. 16.0 ppb (15) 6.0 ppb (6) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 6.4 μg/m3 (27) 30.0
 
March 12, 2019, 9 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A N/A 33.0
 
March 12, 2019, 8 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
March 12, 2019, 7 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 1.8 μg/m3 (8) 34.0
 
March 12, 2019, 6 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 3.8 μg/m3 (16) 33.0
 
March 12, 2019, 5 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 4.3 μg/m3 (18) 32.0
 
March 12, 2019, 4 p.m. 12.0 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 6.2 μg/m3 (26) 32.0
 
March 12, 2019, 3 p.m. 17.0 ppb (16) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 11.0 μg/m3 (46) 46.0