AQSQID: 340410007

Site Name: Columbia

Location: Knowlton (Delaware Rd), NJ

Reporting: True, Located: True

Current AQI: 22.0

Knowlton (Delaware Rd) NJ, US: 40.924606, -75.067825

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 28, 2020, 3 p.m. 19.0 ppb (18) 10.0 ppb (9) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 2.5 μg/m3 (10) 22.0
 
Jan. 28, 2020, 2 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
Jan. 28, 2020, 1 p.m. 15.0 ppb (14) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
Jan. 28, 2020, noon 62.0 ppb (59) 43.0 ppb (40) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 6.0 ppb (5) N/A N/A 2.5 μg/m3 (10) 59.0
 
Jan. 28, 2020, 11 a.m. 20.0 ppb (19) 10.0 ppb (9) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 2.5 μg/m3 (10) 19.0
 
Jan. 28, 2020, 10 a.m. 22.0 ppb (20) 12.0 ppb (11) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 3.5 μg/m3 (15) 20.0
 
Jan. 28, 2020, 9 a.m. 21.0 ppb (19) 11.0 ppb (10) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 2.7 μg/m3 (11) 19.0
 
Jan. 28, 2020, 8 a.m. 12.0 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A 3.9 μg/m3 (16) 18.0
 
Jan. 28, 2020, 7 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 28, 2020, 6 a.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 28, 2020, 5 a.m. 13.0 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 28, 2020, 4 a.m. 12.0 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 3.1 μg/m3 (13) 15.0
 
Jan. 28, 2020, 3 a.m. 30.0 ppb (28) 16.0 ppb (15) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 4.1 μg/m3 (17) 28.0
 
Jan. 28, 2020, 2 a.m. 13.0 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 4.2 μg/m3 (18) 18.0
 
Jan. 28, 2020, 1 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 28, 2020, midnight 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 4.2 μg/m3 (18) 18.0
 
Jan. 27, 2020, 11 p.m. 15.0 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 27, 2020, 10 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
Jan. 27, 2020, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 27, 2020, 8 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 1.0 μg/m3 (4) 20.0
 
Jan. 27, 2020, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 0.4 μg/m3 (2) 19.0
 
Jan. 27, 2020, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A -0.1 μg/m3 (0) 20.0
 
Jan. 27, 2020, 5 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A -0.9 μg/m3 (0) 19.0
 
Jan. 27, 2020, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A -1.4 μg/m3 (0) 19.0
 
Jan. 27, 2020, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
Jan. 27, 2020, 2 p.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 0.8 μg/m3 (3) 3.0
 
Jan. 27, 2020, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 27, 2020, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 27, 2020, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
Jan. 27, 2020, 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 4.2 μg/m3 (18) 18.0
 
Jan. 27, 2020, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 27, 2020, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 27, 2020, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 27, 2020, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 27, 2020, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 27, 2020, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 3.1 μg/m3 (13) 17.0
 
Jan. 27, 2020, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 3.7 μg/m3 (15) 18.0
 
Jan. 27, 2020, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 4.2 μg/m3 (18) 18.0
 
Jan. 27, 2020, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 5.6 μg/m3 (23) 23.0
 
Jan. 27, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 26, 2020, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 5.3 μg/m3 (22) 22.0
 
Jan. 26, 2020, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 3.0 μg/m3 (12) 18.0
 
Jan. 26, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A N/A 19.0
 
Jan. 26, 2020, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 0.2 μg/m3 (1) 18.0
 
Jan. 26, 2020, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A -1.6 μg/m3 (0) 18.0
 
Jan. 26, 2020, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A -1.6 μg/m3 (0) 18.0
 
Jan. 26, 2020, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 1.3 μg/m3 (5) 18.0
 
Jan. 26, 2020, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 2.9 μg/m3 (12) 15.0
 
Jan. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 10.3 μg/m3 (43) 43.0
 
Jan. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A N/A 9.0
 
Jan. 26, 2020, noon 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 26, 2020, 11 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 7.4 μg/m3 (31) 31.0
 
Jan. 26, 2020, 10 a.m. 20.0 ppb (19) 9.0 ppb (8) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 26, 2020, 9 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 26, 2020, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 9.0 ppb (7) N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 26, 2020, 7 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 26, 2020, 6 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 26, 2020, 5 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A N/A 6.0
 
Jan. 26, 2020, 4 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 3.2 μg/m3 (13) 13.0
 
Jan. 26, 2020, 3 a.m. 10.0 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 26, 2020, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 3.3 μg/m3 (14) 14.0
 
Jan. 26, 2020, 1 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 26, 2020, midnight 14.0 ppb (13) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 25, 2020, 11 p.m. 16.0 ppb (15) 4.0 ppb (4) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 25, 2020, 10 p.m. 21.0 ppb (19) 7.0 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 3.4 μg/m3 (14) 19.0
 
Jan. 25, 2020, 9 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 25, 2020, 8 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A -1.2 μg/m3 (0) 17.0
 
Jan. 25, 2020, 7 p.m. 20.0 ppb (19) 8.0 ppb (7) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 1.5 μg/m3 (6) 19.0
 
Jan. 25, 2020, 6 p.m. 33.0 ppb (31) 15.0 ppb (14) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 2.0 μg/m3 (8) 31.0
 
Jan. 25, 2020, 5 p.m. 16.0 ppb (15) 6.0 ppb (6) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.1 μg/m3 (5) 21.0
 
Jan. 25, 2020, 4 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 3.8 μg/m3 (16) 22.0
 
Jan. 25, 2020, 3 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 25, 2020, 2 p.m. 18.0 ppb (17) 7.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 25, 2020, 1 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 25, 2020, noon 10.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 12.4 μg/m3 (51) 51.0
 
Jan. 25, 2020, 11 a.m. 13.0 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 14.8 μg/m3 (56) 56.0
 
Jan. 25, 2020, 10 a.m. 17.0 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 25, 2020, 9 a.m. 23.0 ppb (21) 8.0 ppb (7) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 16.9 μg/m3 (60) 60.0
 
Jan. 25, 2020, 8 a.m. 20.0 ppb (19) 5.0 ppb (5) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) N/A N/A 18.3 μg/m3 (63) 63.0
 
Jan. 25, 2020, 7 a.m. 21.0 ppb (19) 4.0 ppb (4) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 17.3 μg/m3 (61) 61.0
 
Jan. 25, 2020, 6 a.m. 22.0 ppb (20) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 16.4 μg/m3 (59) 59.0
 
Jan. 25, 2020, 5 a.m. 34.0 ppb (31) 8.0 ppb (7) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A N/A 31.0
 
Jan. 25, 2020, 4 a.m. 71.0 ppb (68) 33.0 ppb (31) N/A 38.0 ppb (35) N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 15.7 μg/m3 (58) 68.0
 
Jan. 25, 2020, 3 a.m. 70.0 ppb (67) 28.0 ppb (26) N/A 42.0 ppb (39) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 14.1 μg/m3 (54) 67.0
 
Jan. 25, 2020, 2 a.m. 84.0 ppb (82) 36.0 ppb (33) N/A 47.0 ppb (44) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 11.6 μg/m3 (48) 82.0
 
Jan. 25, 2020, 1 a.m. 69.0 ppb (66) 25.0 ppb (23) N/A 43.0 ppb (40) N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A 9.9 μg/m3 (41) 66.0
 
Jan. 25, 2020, midnight 66.0 ppb (63) 27.0 ppb (25) N/A 38.0 ppb (35) N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 10.6 μg/m3 (44) 63.0
 
Jan. 24, 2020, 11 p.m. 66.0 ppb (63) 24.0 ppb (22) N/A 42.0 ppb (39) N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 11.8 μg/m3 (49) 63.0
 
Jan. 24, 2020, 10 p.m. 80.0 ppb (78) 31.0 ppb (29) N/A 49.0 ppb (45) N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 11.0 μg/m3 (46) 78.0
 
Jan. 24, 2020, 9 p.m. 94.0 ppb (93) 38.0 ppb (35) N/A 55.0 ppb (51) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A N/A 93.0
 
Jan. 24, 2020, 8 p.m. 48.0 ppb (44) 15.0 ppb (14) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 5.8 μg/m3 (24) 44.0
 
Jan. 24, 2020, 7 p.m. 25.0 ppb (23) 7.0 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 24, 2020, 6 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 24, 2020, 5 p.m. 34.0 ppb (31) 17.0 ppb (16) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 20.1 μg/m3 (67) 67.0
 
Jan. 24, 2020, 4 p.m. 40.0 ppb (37) 19.0 ppb (18) N/A 20.0 ppb (19) N/A 2.0 ppb (3) 18.0 ppb (14) N/A N/A 28.6 μg/m3 (85) 85.0
 
Jan. 24, 2020, 3 p.m. 64.0 ppb (61) 41.0 ppb (38) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 31.4 μg/m3 (91) 91.0
 
Jan. 24, 2020, 2 p.m. 98.0 ppb (97) 75.0 ppb (72) N/A 22.0 ppb (20) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 30.5 μg/m3 (89) 97.0
 
Jan. 24, 2020, 1 p.m. 90.0 ppb (88) 70.0 ppb (67) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A N/A 88.0
 
Jan. 24, 2020, noon 59.0 ppb (55) 39.0 ppb (36) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 31.7 μg/m3 (92) 92.0
 
Jan. 24, 2020, 11 a.m. 170.0 ppb (113) 145.0 ppb (108) N/A 25.0 ppb (23) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 33.8 μg/m3 (96) 113.0
 
Jan. 24, 2020, 10 a.m. 188.0 ppb (117) 162.0 ppb (112) N/A 26.0 ppb (24) N/A 3.0 ppb (4) N/A N/A N/A 33.5 μg/m3 (96) 117.0
 
Jan. 24, 2020, 9 a.m. 189.0 ppb (117) 163.0 ppb (112) N/A 26.0 ppb (24) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 34.2 μg/m3 (97) 117.0
 
Jan. 24, 2020, 8 a.m. 181.0 ppb (115) 151.0 ppb (110) N/A 30.0 ppb (28) N/A N/A 0.0 ppb (0) N/A N/A 36.9 μg/m3 (104) 115.0
 
Jan. 24, 2020, 7 a.m. 151.0 ppb (110) 121.0 ppb (104) N/A 29.0 ppb (27) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 39.3 μg/m3 (110) 110.0
 
Jan. 24, 2020, 6 a.m. 175.0 ppb (114) 146.0 ppb (109) N/A 29.0 ppb (27) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 38.8 μg/m3 (108) 114.0
 
Jan. 24, 2020, 5 a.m. 179.0 ppb (115) 146.0 ppb (109) N/A 33.0 ppb (31) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A N/A 115.0
 
Jan. 24, 2020, 4 a.m. 202.0 ppb (119) 167.0 ppb (113) N/A 34.0 ppb (31) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 32.8 μg/m3 (94) 119.0
 
Jan. 24, 2020, 3 a.m. 184.0 ppb (116) 152.0 ppb (110) N/A 32.0 ppb (30) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 30.4 μg/m3 (89) 116.0
 
Jan. 24, 2020, 2 a.m. 119.0 ppb (103) 89.0 ppb (87) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 30.5 μg/m3 (89) 103.0
 
Jan. 24, 2020, 1 a.m. 131.0 ppb (106) 99.0 ppb (98) N/A 32.0 ppb (30) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 30.2 μg/m3 (89) 106.0
 
Jan. 24, 2020, midnight 121.0 ppb (104) 86.0 ppb (84) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 29.7 μg/m3 (88) 104.0
 
Jan. 23, 2020, 11 p.m. 58.0 ppb (54) 29.0 ppb (27) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 27.9 μg/m3 (84) 84.0
 
Jan. 23, 2020, 10 p.m. 40.0 ppb (37) 12.0 ppb (11) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 25.2 μg/m3 (78) 78.0
 
Jan. 23, 2020, 9 p.m. 40.0 ppb (37) 11.0 ppb (10) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 6.0 ppb (5) N/A N/A N/A 37.0
 
Jan. 23, 2020, 8 p.m. 26.0 ppb (24) 4.0 ppb (4) N/A 21.0 ppb (19) N/A 2.0 ppb (3) 16.0 ppb (12) N/A N/A 20.3 μg/m3 (68) 68.0
 
Jan. 23, 2020, 7 p.m. 23.0 ppb (21) 5.0 ppb (5) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 20.5 μg/m3 (68) 68.0
 
Jan. 23, 2020, 6 p.m. 22.0 ppb (20) 6.0 ppb (6) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 20.7 μg/m3 (69) 69.0
 
Jan. 23, 2020, 5 p.m. 31.0 ppb (29) 13.0 ppb (12) N/A 18.0 ppb (17) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 20.8 μg/m3 (69) 69.0
 
Jan. 23, 2020, 4 p.m. 38.0 ppb (35) 19.0 ppb (18) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 15.0 ppb (12) N/A N/A 21.5 μg/m3 (70) 70.0
 
Jan. 23, 2020, 3 p.m. 69.0 ppb (66) 45.0 ppb (42) N/A 23.0 ppb (21) N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 22.7 μg/m3 (73) 73.0
 
Jan. 23, 2020, 2 p.m. 72.0 ppb (69) 49.0 ppb (45) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 21.3 μg/m3 (70) 70.0
 
Jan. 23, 2020, 1 p.m. 133.0 ppb (106) 105.0 ppb (101) N/A 27.0 ppb (25) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A N/A 106.0
 
Jan. 23, 2020, noon 183.0 ppb (116) 155.0 ppb (110) N/A 27.0 ppb (25) N/A 3.0 ppb (4) 0.0 ppb (0) N/A N/A 19.6 μg/m3 (66) 116.0
 
Jan. 23, 2020, 11 a.m. 149.0 ppb (109) 123.0 ppb (104) N/A 26.0 ppb (24) N/A 2.0 ppb (3) N/A N/A N/A 19.7 μg/m3 (66) 109.0
 
Jan. 23, 2020, 10 a.m. 143.0 ppb (108) 115.0 ppb (103) N/A 27.0 ppb (25) N/A 2.0 ppb (3) N/A N/A N/A 20.3 μg/m3 (68) 108.0
 
Jan. 23, 2020, 9 a.m. 125.0 ppb (105) 99.0 ppb (98) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) N/A N/A 20.7 μg/m3 (69) 105.0
 
Jan. 23, 2020, 8 a.m. 148.0 ppb (109) 119.0 ppb (103) N/A 29.0 ppb (27) N/A N/A 0.0 ppb (0) N/A N/A 19.7 μg/m3 (66) 109.0
 
Jan. 23, 2020, 7 a.m. 140.0 ppb (108) 109.0 ppb (102) N/A 30.0 ppb (28) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 20.2 μg/m3 (67) 108.0
 
Jan. 23, 2020, 6 a.m. 167.0 ppb (113) 133.0 ppb (106) N/A 33.0 ppb (31) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 18.4 μg/m3 (64) 113.0
 
Jan. 23, 2020, 5 a.m. 128.0 ppb (105) 96.0 ppb (95) N/A 31.0 ppb (29) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A N/A 105.0
 
Jan. 23, 2020, 4 a.m. 140.0 ppb (108) 107.0 ppb (101) N/A 32.0 ppb (30) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 18.4 μg/m3 (64) 108.0
 
Jan. 23, 2020, 3 a.m. 127.0 ppb (105) 96.0 ppb (95) N/A 31.0 ppb (29) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 19.4 μg/m3 (66) 105.0
 
Jan. 23, 2020, 2 a.m. 171.0 ppb (113) 134.0 ppb (106) N/A 36.0 ppb (33) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 17.6 μg/m3 (62) 113.0
 
Jan. 23, 2020, 1 a.m. 132.0 ppb (106) 97.0 ppb (96) N/A 34.0 ppb (31) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 14.9 μg/m3 (56) 106.0
 
Jan. 23, 2020, midnight 98.0 ppb (97) 64.0 ppb (61) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 13.5 μg/m3 (53) 97.0
 
Jan. 22, 2020, 11 p.m. 50.0 ppb (46) 21.0 ppb (19) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 12.6 μg/m3 (51) 51.0
 
Jan. 22, 2020, 10 p.m. 26.0 ppb (24) 7.0 ppb (6) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 16.0 ppb (12) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 9 p.m. 10.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 2.0 ppb (3) 30.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 22, 2020, 8 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 33.0 ppb (25) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 22, 2020, 7 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 5.2 μg/m3 (22) 25.0
 
Jan. 22, 2020, 6 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 4.7 μg/m3 (20) 24.0
 
Jan. 22, 2020, 5 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 4.3 μg/m3 (18) 25.0
 
Jan. 22, 2020, 4 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 8.5 μg/m3 (35) 35.0
 
Jan. 22, 2020, 3 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 13.4 μg/m3 (53) 53.0
 
Jan. 22, 2020, 2 p.m. 18.0 ppb (17) 7.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 18.5 μg/m3 (64) 64.0
 
Jan. 22, 2020, 1 p.m. 42.0 ppb (39) 22.0 ppb (20) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A N/A 39.0
 
Jan. 22, 2020, noon 98.0 ppb (97) 72.0 ppb (69) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 18.2 μg/m3 (63) 97.0
 
Jan. 22, 2020, 11 a.m. 156.0 ppb (111) 125.0 ppb (105) N/A 30.0 ppb (28) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 17.4 μg/m3 (61) 111.0
 
Jan. 22, 2020, 10 a.m. 162.0 ppb (112) 127.0 ppb (105) N/A 34.0 ppb (31) N/A 2.0 ppb (3) N/A N/A N/A 18.0 μg/m3 (63) 112.0
 
Jan. 22, 2020, 9 a.m. 150.0 ppb (109) 116.0 ppb (103) N/A 33.0 ppb (31) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 18.3 μg/m3 (63) 109.0
 
Jan. 22, 2020, 8 a.m. 121.0 ppb (104) 88.0 ppb (86) N/A 32.0 ppb (30) N/A N/A 0.0 ppb (0) N/A N/A 17.9 μg/m3 (63) 104.0
 
Jan. 22, 2020, 7 a.m. 125.0 ppb (105) 91.0 ppb (89) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 14.4 μg/m3 (55) 105.0
 
Jan. 22, 2020, 6 a.m. 107.0 ppb (101) 73.0 ppb (70) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 9.3 μg/m3 (39) 101.0
 
Jan. 22, 2020, 5 a.m. 91.0 ppb (89) 59.0 ppb (55) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 89.0
 
Jan. 22, 2020, 4 a.m. 68.0 ppb (65) 38.0 ppb (35) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 6.1 μg/m3 (25) 65.0
 
Jan. 22, 2020, 3 a.m. 36.0 ppb (33) 9.0 ppb (8) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 5.6 μg/m3 (23) 33.0
 
Jan. 22, 2020, 2 a.m. 41.0 ppb (38) 15.0 ppb (14) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 5.5 μg/m3 (23) 38.0
 
Jan. 22, 2020, 1 a.m. 33.0 ppb (31) 14.0 ppb (13) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 4.3 μg/m3 (18) 31.0
 
Jan. 22, 2020, midnight 21.0 ppb (19) 5.0 ppb (5) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 21, 2020, 11 p.m. 42.0 ppb (39) 16.0 ppb (15) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 6.6 μg/m3 (28) 39.0
 
Jan. 21, 2020, 10 p.m. 55.0 ppb (51) 25.0 ppb (23) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 6.1 μg/m3 (25) 51.0
 
Jan. 21, 2020, 9 p.m. 36.0 ppb (33) 17.0 ppb (16) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A N/A 33.0
 
Jan. 21, 2020, 8 p.m. 15.0 ppb (14) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.6 μg/m3 (15) 25.0
 
Jan. 21, 2020, 7 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 2.6 μg/m3 (11) 28.0
 
Jan. 21, 2020, 6 p.m. 9.0 ppb (8) 5.0 ppb (5) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 0.5 μg/m3 (2) 28.0
 
Jan. 21, 2020, 5 p.m. 20.0 ppb (19) 11.0 ppb (10) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.7 μg/m3 (7) 26.0
 
Jan. 21, 2020, 4 p.m. 21.0 ppb (19) 12.0 ppb (11) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 4.1 μg/m3 (17) 25.0