ID: 2009

AQSQID: 340410007

Site Name: Columbia

Added: April 21, 2020, 6:24 p.m.

Updated: Oct. 22, 2021, 5:07 p.m.

Location: Knowlton (Delaware Rd), NJ

Reporting: True, Located: True

Current AQI: 18.0

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
Oct. 22, 2021, 3 p.m. 4.0 ppb (4) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 1.5 μg/m3 (7) 18.0
 
Oct. 22, 2021, 2 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 5.1 μg/m3 (22) 22.0
 
Oct. 22, 2021, 1 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A N/A 20.0
 
Oct. 22, 2021, noon 9.0 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 22, 2021, 11 a.m. 42.0 ppb (40) 27.0 ppb (26) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 5.5 μg/m3 (23) 40.0
 
Oct. 22, 2021, 10 a.m. 36.0 ppb (34) 20.0 ppb (19) N/A 16.0 ppb (16) N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 34.0
 
Oct. 22, 2021, 9 a.m. 15.0 ppb (15) 6.0 ppb (6) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 8.9 μg/m3 (38) 38.0
 
Oct. 22, 2021, 8 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 11.2 μg/m3 (47) 47.0
 
Oct. 22, 2021, 7 a.m. 12.0 ppb (12) 3.0 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 8.2 μg/m3 (35) 35.0
 
Oct. 22, 2021, 6 a.m. 50.0 ppb (48) 26.0 ppb (25) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A N/A 48.0
 
Oct. 22, 2021, 5 a.m. 106.0 ppb (102) 82.0 ppb (81) N/A 23.0 ppb (22) N/A N/A 0.0 ppb (0) N/A N/A N/A 102.0
 
Oct. 22, 2021, 4 a.m. 125.0 ppb (106) 95.0 ppb (95) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A -0.6 μg/m3 (0) 106.0
 
Oct. 22, 2021, 3 a.m. 99.0 ppb (99) 70.0 ppb (69) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A -3.0 μg/m3 (0) 99.0
 
Oct. 22, 2021, 2 a.m. 76.0 ppb (75) 48.0 ppb (46) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A N/A 75.0
 
Oct. 22, 2021, 1 a.m. 142.0 ppb (109) 107.0 ppb (103) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A N/A 109.0
 
Oct. 22, 2021, midnight 44.0 ppb (42) 22.0 ppb (21) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 42.0
 
Oct. 21, 2021, 11 p.m. 22.0 ppb (21) 5.0 ppb (5) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 21.0
 
Oct. 21, 2021, 10 p.m. 13.0 ppb (13) 2.0 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A N/A 29.0
 
Oct. 21, 2021, 9 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A N/A 48.0
 
Oct. 21, 2021, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (50) N/A N/A N/A 50.0
 
Oct. 21, 2021, 7 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (50) N/A N/A N/A 50.0
 
Oct. 21, 2021, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A N/A 50.0
 
Oct. 21, 2021, 5 p.m. 7.0 ppb (7) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A N/A 46.0
 
Oct. 21, 2021, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 46.0 ppb (43) N/A N/A N/A 43.0
 
Oct. 21, 2021, 3 p.m. 8.0 ppb (8) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 45.9 μg/m3 (127) 127.0
 
Oct. 21, 2021, 2 p.m. 28.0 ppb (27) 14.0 ppb (14) N/A 13.0 ppb (13) N/A 2.0 ppb (3) 20.0 ppb (19) N/A N/A 29.2 μg/m3 (87) 87.0
 
Oct. 21, 2021, 1 p.m. 83.0 ppb (82) 63.0 ppb (61) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 4.0 ppb (4) N/A N/A N/A 82.0
 
Oct. 21, 2021, noon 149.0 ppb (111) 127.0 ppb (106) N/A 21.0 ppb (20) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 0.0 μg/m3 (0) 111.0
 
Oct. 21, 2021, 11 a.m. 86.0 ppb (86) 70.0 ppb (69) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 4.8 μg/m3 (20) 86.0
 
Oct. 21, 2021, 10 a.m. 104.0 ppb (102) 86.0 ppb (86) N/A 18.0 ppb (17) N/A 1.0 ppb (2) N/A N/A N/A -4.1 μg/m3 (0) 102.0
 
Oct. 21, 2021, 9 a.m. 99.0 ppb (99) 79.0 ppb (78) N/A 19.0 ppb (18) N/A 1.0 ppb (2) N/A N/A N/A -2.6 μg/m3 (0) 99.0
 
Oct. 21, 2021, 8 a.m. 105.0 ppb (102) 81.0 ppb (80) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A N/A 102.0
 
Oct. 21, 2021, 7 a.m. 67.0 ppb (65) 46.0 ppb (44) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A -2.6 μg/m3 (0) 65.0
 
Oct. 21, 2021, 6 a.m. 74.0 ppb (73) 50.0 ppb (48) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 5.0 μg/m3 (21) 73.0
 
Oct. 21, 2021, 5 a.m. 43.0 ppb (41) 24.0 ppb (23) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) N/A N/A N/A 41.0
 
Oct. 21, 2021, 4 a.m. 11.0 ppb (11) 3.0 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 21, 2021, 3 a.m. 26.0 ppb (25) 10.0 ppb (10) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 2.6 μg/m3 (11) 25.0
 
Oct. 21, 2021, 2 a.m. 63.0 ppb (61) 33.0 ppb (32) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 3.9 μg/m3 (17) 61.0
 
Oct. 21, 2021, 1 a.m. 70.0 ppb (69) 39.0 ppb (37) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 6.0 μg/m3 (25) 69.0
 
Oct. 21, 2021, midnight 58.0 ppb (56) 30.0 ppb (29) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 4.5 μg/m3 (19) 56.0
 
Oct. 20, 2021, 11 p.m. 25.0 ppb (24) 8.0 ppb (8) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 5.8 μg/m3 (25) 25.0
 
Oct. 20, 2021, 10 p.m. 26.0 ppb (25) 8.0 ppb (8) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 10.1 μg/m3 (43) 43.0
 
Oct. 20, 2021, 9 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A N/A 42.0
 
Oct. 20, 2021, 8 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 12.3 μg/m3 (52) 52.0
 
Oct. 20, 2021, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 15.6 μg/m3 (59) 59.0
 
Oct. 20, 2021, 6 p.m. 15.0 ppb (15) 6.0 ppb (6) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 24.9 μg/m3 (78) 78.0
 
Oct. 20, 2021, 5 p.m. 19.0 ppb (18) 8.0 ppb (8) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 32.8 μg/m3 (95) 95.0
 
Oct. 20, 2021, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 38.5 μg/m3 (109) 109.0
 
Oct. 20, 2021, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 44.0 μg/m3 (122) 122.0
 
Oct. 20, 2021, 2 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 47.8 μg/m3 (132) 132.0
 
Oct. 20, 2021, 1 p.m. 17.0 ppb (17) 7.0 ppb (7) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A N/A 26.0
 
Oct. 20, 2021, noon 30.0 ppb (29) 15.0 ppb (15) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 47.1 μg/m3 (130) 130.0
 
Oct. 20, 2021, 11 a.m. 41.0 ppb (39) 24.0 ppb (23) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 10.1 μg/m3 (43) 43.0
 
Oct. 20, 2021, 10 a.m. 44.0 ppb (42) 24.0 ppb (23) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A N/A N/A 7.6 μg/m3 (32) 42.0
 
Oct. 20, 2021, 9 a.m. 56.0 ppb (54) 33.0 ppb (32) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 33.3 μg/m3 (96) 96.0
 
Oct. 20, 2021, 8 a.m. 74.0 ppb (73) 49.0 ppb (47) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 47.7 μg/m3 (132) 132.0
 
Oct. 20, 2021, 7 a.m. 44.0 ppb (42) 24.0 ppb (23) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 77.6 μg/m3 (163) 163.0
 
Oct. 20, 2021, 6 a.m. 47.0 ppb (45) 25.0 ppb (24) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A N/A 45.0
 
Oct. 20, 2021, 5 a.m. 14.0 ppb (14) 6.0 ppb (6) N/A 7.0 ppb (7) N/A N/A 13.0 ppb (13) N/A N/A N/A 14.0
 
Oct. 20, 2021, 4 a.m. 22.0 ppb (21) 8.0 ppb (8) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A N/A 21.0
 
Oct. 20, 2021, 3 a.m. 24.0 ppb (23) 9.0 ppb (9) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 23.0
 
Oct. 20, 2021, 2 a.m. 35.0 ppb (34) 13.0 ppb (13) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A N/A 34.0
 
Oct. 20, 2021, 1 a.m. 29.0 ppb (28) 14.0 ppb (14) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 28.0
 
Oct. 20, 2021, midnight 35.0 ppb (34) 15.0 ppb (15) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 34.0
 
Oct. 19, 2021, 11 p.m. 17.0 ppb (17) 5.0 ppb (5) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A N/A 17.0
 
Oct. 19, 2021, 10 p.m. 10.0 ppb (10) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 2.1 μg/m3 (9) 25.0
 
Oct. 19, 2021, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A N/A 37.0
 
Oct. 19, 2021, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A N/A 37.0
 
Oct. 19, 2021, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 22.9 μg/m3 (74) 74.0
 
Oct. 19, 2021, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 71.6 μg/m3 (160) 160.0
 
Oct. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A N/A 32.0
 
Oct. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A N/A 30.0
 
Oct. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A N/A 27.0
 
Oct. 19, 2021, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A N/A 24.0
 
Oct. 19, 2021, 1 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 (23) N/A N/A N/A 23.0
 
Oct. 19, 2021, noon 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A N/A 20.0
 
Oct. 19, 2021, 11 a.m. 19.0 ppb (18) 9.0 ppb (9) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 18.0
 
Oct. 19, 2021, 10 a.m. 18.0 ppb (17) 10.0 ppb (10) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 17.0
 
Oct. 19, 2021, 9 a.m. 30.0 ppb (29) 20.0 ppb (19) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A N/A 29.0
 
Oct. 19, 2021, 8 a.m. 19.0 ppb (18) 10.0 ppb (10) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 2.3 μg/m3 (10) 18.0
 
Oct. 19, 2021, 7 a.m. 38.0 ppb (36) 26.0 ppb (25) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 36.0
 
Oct. 19, 2021, 6 a.m. 53.0 ppb (50) 41.0 ppb (39) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 50.0
 
Oct. 19, 2021, 5 a.m. 41.0 ppb (39) 30.0 ppb (29) N/A 11.0 ppb (11) N/A N/A 0.0 ppb (0) N/A N/A N/A 39.0
 
Oct. 19, 2021, 4 a.m. 33.0 ppb (32) 21.0 ppb (20) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 32.0
 
Oct. 19, 2021, 3 a.m. 29.0 ppb (28) 20.0 ppb (19) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A N/A 28.0
 
Oct. 19, 2021, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A N/A 13.0
 
Oct. 19, 2021, 1 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A N/A 15.0
 
Oct. 19, 2021, midnight 11.0 ppb (11) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A N/A 14.0
 
Oct. 18, 2021, 11 p.m. 16.0 ppb (16) 8.0 ppb (8) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A N/A 16.0
 
Oct. 18, 2021, 10 p.m. 8.0 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 20.8 μg/m3 (70) 70.0
 
Oct. 18, 2021, 9 p.m. 15.0 ppb (15) 8.0 ppb (8) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A N/A 16.0
 
Oct. 18, 2021, 8 p.m. 11.0 ppb (11) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A N/A 20.0
 
Oct. 18, 2021, 7 p.m. 8.0 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A -3.6 μg/m3 (0) 25.0
 
Oct. 18, 2021, 6 p.m. 7.0 ppb (7) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 4.5 μg/m3 (19) 26.0
 
Oct. 18, 2021, 5 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 8.1 μg/m3 (34) 34.0
 
Oct. 18, 2021, 4 p.m. 13.0 ppb (13) 7.0 ppb (7) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 13.9 μg/m3 (55) 55.0
 
Oct. 18, 2021, 3 p.m. 8.0 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 24.7 μg/m3 (78) 78.0
 
Oct. 18, 2021, 2 p.m. 7.0 ppb (7) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 40.0 μg/m3 (113) 113.0
 
Oct. 18, 2021, 1 p.m. 4.0 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A N/A 24.0
 
Oct. 18, 2021, noon 10.0 ppb (10) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A N/A 15.0
 
Oct. 18, 2021, 11 a.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A N/A 10.0
 
Oct. 18, 2021, 10 a.m. 19.0 ppb (18) 10.0 ppb (10) N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A -0.6 μg/m3 (0) 18.0
 
Oct. 18, 2021, 9 a.m. 8.0 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) 8.0
 
Oct. 18, 2021, 8 a.m. 18.0 ppb (17) 10.0 ppb (10) N/A 7.0 ppb (7) N/A N/A 8.0 ppb (8) N/A N/A -2.8 μg/m3 (0) 17.0
 
Oct. 18, 2021, 7 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A N/A 12.0
 
Oct. 18, 2021, 6 a.m. 4.0 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A N/A 13.0
 
Oct. 18, 2021, 5 a.m. 6.0 ppb (6) 4.0 ppb (4) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (15) N/A N/A N/A 15.0
 
Oct. 18, 2021, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A -4.8 μg/m3 (0) 23.0
 
Oct. 18, 2021, 3 a.m. 8.0 ppb (8) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A N/A 22.0
 
Oct. 18, 2021, 2 a.m. 8.0 ppb (8) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A -1.5 μg/m3 (0) 23.0
 
Oct. 18, 2021, 1 a.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A N/A 24.0
 
Oct. 18, 2021, midnight 7.0 ppb (7) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A N/A 23.0
 
Oct. 17, 2021, 11 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 1.3 μg/m3 (6) 21.0
 
Oct. 17, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 4.6 μg/m3 (20) 20.0
 
Oct. 17, 2021, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A N/A 25.0
 
Oct. 17, 2021, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.1 μg/m3 (9) 23.0
 
Oct. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
Oct. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 1.9 μg/m3 (8) 24.0
 
Oct. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Oct. 17, 2021, 4 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 8.2 μg/m3 (35) 35.0
 
Oct. 17, 2021, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 9.3 μg/m3 (39) 39.0
 
Oct. 17, 2021, 2 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 6.1 μg/m3 (26) 26.0
 
Oct. 17, 2021, 1 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A N/A 20.0
 
Oct. 17, 2021, noon 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 1.5 μg/m3 (7) 16.0
 
Oct. 17, 2021, 11 a.m. 9.0 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A -4.2 μg/m3 (0) 13.0
 
Oct. 17, 2021, 10 a.m. 10.0 ppb (10) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A -2.2 μg/m3 (0) 10.0
 
Oct. 17, 2021, 9 a.m. 13.0 ppb (13) 7.0 ppb (7) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A -4.8 μg/m3 (0) 13.0
 
Oct. 17, 2021, 8 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A -2.9 μg/m3 (0) 14.0
 
Oct. 17, 2021, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A N/A 22.0
 
Oct. 17, 2021, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A N/A 22.0
 
Oct. 17, 2021, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (17) N/A N/A N/A 17.0
 
Oct. 17, 2021, 4 a.m. 9.0 ppb (9) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 0.4 μg/m3 (2) 21.0
 
Oct. 17, 2021, 3 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 3.2 μg/m3 (14) 25.0
 
Oct. 17, 2021, 2 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.9 μg/m3 (13) 24.0
 
Oct. 17, 2021, 1 a.m. 10.0 ppb (10) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 4.7 μg/m3 (20) 22.0
 
Oct. 17, 2021, midnight 17.0 ppb (17) 6.0 ppb (6) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 5.1 μg/m3 (22) 22.0
 
Oct. 16, 2021, 11 p.m. 12.0 ppb (12) 4.0 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.2 μg/m3 (22) 23.0
 
Oct. 16, 2021, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 7.3 μg/m3 (31) 31.0
 
Oct. 16, 2021, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A N/A 30.0
 
Oct. 16, 2021, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 13.2 μg/m3 (54) 54.0
 
Oct. 16, 2021, 7 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 (41) N/A N/A 11.0 μg/m3 (46) 46.0
 
Oct. 16, 2021, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 12.2 μg/m3 (52) 52.0
 
Oct. 16, 2021, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 8.4 μg/m3 (36) 46.0
 
Oct. 16, 2021, 4 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 5.9 μg/m3 (25) 40.0
 
Oct. 16, 2021, 3 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 (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
Oct. 16, 2021, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
Oct. 16, 2021, 1 p.m. 15.0 ppb (15) 5.0 ppb (5) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A N/A 15.0
 
Oct. 16, 2021, noon 45.0 ppb (43) 25.0 ppb (24) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 7.3 μg/m3 (31) 43.0
 
Oct. 16, 2021, 11 a.m. 26.0 ppb (25) 13.0 ppb (13) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A 9.2 μg/m3 (39) 39.0
 
Oct. 16, 2021, 10 a.m. 14.0 ppb (14) 2.0 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
Oct. 16, 2021, 9 a.m. 14.0 ppb (14) 3.0 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 14.0 μg/m3 (55) 55.0
 
Oct. 16, 2021, 8 a.m. 7.0 ppb (7) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 17.8 μg/m3 (63) 63.0
 
Oct. 16, 2021, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 21.7 μg/m3 (72) 72.0
 
Oct. 16, 2021, 6 a.m. 8.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 27.1 μg/m3 (83) 83.0
 
Oct. 16, 2021, 5 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Oct. 16, 2021, 4 a.m. 7.0 ppb (7) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 12.5 μg/m3 (52) 52.0
 
Oct. 16, 2021, 3 a.m. 11.0 ppb (11) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 12.6 μg/m3 (53) 53.0
 
Oct. 16, 2021, 2 a.m. 29.0 ppb (28) 15.0 ppb (15) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A 13.2 μg/m3 (54) 54.0
 
Oct. 16, 2021, 1 a.m. 18.0 ppb (17) 4.0 ppb (4) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 14.2 μg/m3 (56) 56.0
 
Oct. 16, 2021, midnight 8.0 ppb (8) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 12.7 μg/m3 (53) 53.0
 
Oct. 15, 2021, 11 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 10.6 μg/m3 (45) 45.0
 
Oct. 15, 2021, 10 p.m. 10.0 ppb (10) 1.0 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 10.7 μg/m3 (45) 45.0
 
Oct. 15, 2021, 9 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A N/A 44.0
 
Oct. 15, 2021, 8 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 13.7 μg/m3 (55) 55.0
 
Oct. 15, 2021, 7 p.m. 10.0 ppb (10) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 13.9 μg/m3 (55) 55.0
 
Oct. 15, 2021, 6 p.m. 9.0 ppb (9) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 14.1 μg/m3 (56) 56.0
 
Oct. 15, 2021, 5 p.m. 12.0 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 11.9 μg/m3 (50) 50.0
 
Oct. 15, 2021, 4 p.m. 8.0 ppb (8) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 11.6 μg/m3 (49) 49.0