ID: 2009

AQSQID: 340410007

Site Name: Columbia

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

Updated: May 25, 2022, 10:49 p.m.

Location: Knowlton (Delaware Rd), NJ

Reporting: True, Located: True

Current AQI: 41.0

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
May 25, 2022, 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 (41) N/A N/A N/A 41.0
 
May 25, 2022, 8 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 3.1 μg/m3 (13) 41.0
 
May 25, 2022, 8 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 3.1 μg/m3 (13) 41.0
 
May 25, 2022, 7 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 1.8 μg/m3 (8) 44.0
 
May 25, 2022, 7 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 1.8 μg/m3 (8) 44.0
 
May 25, 2022, 6 p.m. 9.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A -0.3 μg/m3 (0) 36.0
 
May 25, 2022, 6 p.m. 9.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A -0.3 μg/m3 (0) 36.0
 
May 25, 2022, 5 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.6 μg/m3 (3) 36.0
 
May 25, 2022, 5 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 0.6 μg/m3 (3) 36.0
 
May 25, 2022, 4 p.m. 11.0 ppb (11) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 1.7 μg/m3 (8) 31.0
 
May 25, 2022, 3 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.1 μg/m3 (9) 29.0
 
May 25, 2022, 3 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.1 μg/m3 (9) 29.0
 
May 25, 2022, 1 p.m. 18.0 ppb (17) 11.0 ppb (11) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A -1.5 μg/m3 (0) 18.0
 
May 25, 2022, 9 a.m. 74.0 ppb (73) 64.0 ppb (62) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 10.7 μg/m3 (45) 73.0
 
May 25, 2022, 5 a.m. 90.0 ppb (90) 69.0 ppb (67) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 9.1 μg/m3 (38) 90.0
 
May 25, 2022, 4 a.m. 73.0 ppb (72) 52.0 ppb (50) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 9.1 μg/m3 (38) 72.0
 
May 25, 2022, 1 a.m. 45.0 ppb (43) 21.0 ppb (20) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 9.1 μg/m3 (38) 43.0
 
May 25, 2022, midnight 21.0 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 6.2 μg/m3 (26) 26.0
 
May 24, 2022, 9 p.m. 16.0 ppb (16) 6.0 ppb (6) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A N/A 25.0
 
May 24, 2022, 8 p.m. 10.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.7 μg/m3 (20) 29.0
 
May 24, 2022, 7 p.m. 20.0 ppb (19) 6.0 ppb (6) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A N/A 21.0
 
May 24, 2022, 6 p.m. 13.0 ppb (13) 4.0 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A N/A 25.0
 
May 24, 2022, 5 p.m. 12.0 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A N/A 25.0
 
May 24, 2022, 4 p.m. 16.0 ppb (16) 6.0 ppb (6) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A N/A 22.0
 
May 24, 2022, 3 p.m. 23.0 ppb (22) 12.0 ppb (12) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A N/A 22.0
 
May 24, 2022, 2 p.m. 21.0 ppb (20) 11.0 ppb (11) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 3.0 μg/m3 (13) 20.0
 
May 24, 2022, 1 p.m. 24.0 ppb (23) 13.0 ppb (13) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 3.0 μg/m3 (13) 23.0
 
May 24, 2022, noon 20.0 ppb (19) 10.0 ppb (10) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 3.0 μg/m3 (13) 19.0
 
May 24, 2022, 10 a.m. 24.0 ppb (23) 12.0 ppb (12) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A N/A 23.0
 
May 24, 2022, 9 a.m. 28.0 ppb (27) 14.0 ppb (14) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A N/A 27.0
 
May 24, 2022, 8 a.m. 30.0 ppb (29) 15.0 ppb (15) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A N/A 29.0
 
May 24, 2022, 6 a.m. 29.0 ppb (28) 11.0 ppb (11) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A N/A 28.0
 
May 24, 2022, 5 a.m. 21.0 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (15) N/A N/A 12.0 ppb (12) N/A N/A N/A 20.0
 
May 24, 2022, 5 a.m. 21.0 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (15) N/A N/A 12.0 ppb (12) N/A N/A N/A 20.0
 
May 24, 2022, 4 a.m. 30.0 ppb (29) 12.0 ppb (12) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A N/A 29.0
 
May 24, 2022, 4 a.m. 30.0 ppb (29) 12.0 ppb (12) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A N/A 29.0
 
May 24, 2022, 3 a.m. 39.0 ppb (37) 17.0 ppb (17) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 37.0
 
May 24, 2022, 3 a.m. 39.0 ppb (37) 17.0 ppb (17) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 37.0
 
May 24, 2022, 2 a.m. 44.0 ppb (42) 19.0 ppb (18) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A N/A 42.0
 
May 24, 2022, 2 a.m. 44.0 ppb (42) 19.0 ppb (18) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A N/A 42.0
 
May 24, 2022, 1 a.m. 27.0 ppb (26) 9.0 ppb (9) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 26.0
 
May 24, 2022, 1 a.m. 27.0 ppb (26) 9.0 ppb (9) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 26.0
 
May 24, 2022, midnight 29.0 ppb (28) 12.0 ppb (12) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 28.0
 
May 24, 2022, midnight 29.0 ppb (28) 12.0 ppb (12) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 28.0
 
May 23, 2022, 11 p.m. 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
 
May 23, 2022, 11 p.m. 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
 
May 23, 2022, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A N/A 32.0
 
May 23, 2022, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A N/A 32.0
 
May 23, 2022, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A N/A 32.0
 
May 23, 2022, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A N/A 32.0
 
May 23, 2022, 7 p.m. 8.0 ppb (8) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A N/A 30.0
 
May 23, 2022, 6 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A N/A 31.0
 
May 23, 2022, 3 p.m. 13.0 ppb (13) 7.0 ppb (7) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A N/A 25.0
 
May 23, 2022, 2 p.m. 14.0 ppb (14) 8.0 ppb (8) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A N/A 23.0
 
May 23, 2022, 11 a.m. 17.0 ppb (17) 8.0 ppb (8) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A N/A 17.0
 
May 23, 2022, 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 N/A 34.0
 
May 23, 2022, 10 a.m. 36.0 ppb (34) 20.0 ppb (19) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A N/A 34.0
 
May 23, 2022, 9 a.m. 33.0 ppb (32) 17.0 ppb (17) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A N/A 32.0
 
May 23, 2022, 3 a.m. 9.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A N/A 27.0
 
May 23, 2022, 2 a.m. 11.0 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A N/A 27.0
 
May 23, 2022, 1 a.m. 11.0 ppb (11) 3.0 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A N/A 28.0
 
May 23, 2022, midnight 28.0 ppb (27) 10.0 ppb (10) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A N/A 27.0
 
May 22, 2022, 11 p.m. 15.0 ppb (15) 3.0 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A N/A 25.0
 
May 22, 2022, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (51) N/A N/A N/A 51.0
 
May 22, 2022, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 61.0 ppb (71) N/A N/A N/A 71.0
 
May 22, 2022, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 59.0 ppb (65) N/A N/A N/A 65.0
 
May 22, 2022, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (50) N/A N/A N/A 50.0
 
May 22, 2022, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A N/A 47.0
 
May 22, 2022, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A N/A 45.0
 
May 22, 2022, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A N/A 43.0
 
May 22, 2022, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A N/A 37.0
 
May 22, 2022, 1 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A N/A 21.0
 
May 22, 2022, 1 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A N/A 21.0
 
May 22, 2022, noon 7.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A N/A 11.0
 
May 22, 2022, 11 a.m. 26.0 ppb (25) 20.0 ppb (19) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 25.0
 
May 22, 2022, 10 a.m. 26.0 ppb (25) 20.0 ppb (19) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 25.0
 
May 22, 2022, 9 a.m. 37.0 ppb (35) 31.0 ppb (30) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 35.0
 
May 22, 2022, 8 a.m. 30.0 ppb (29) 23.0 ppb (22) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 29.0
 
May 22, 2022, 7 a.m. 42.0 ppb (40) 33.0 ppb (32) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 40.0
 
May 22, 2022, 5 a.m. 35.0 ppb (34) 22.0 ppb (21) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 34.0
 
May 22, 2022, 3 a.m. 20.0 ppb (19) 6.0 ppb (6) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A N/A 19.0
 
May 22, 2022, 2 a.m. 42.0 ppb (40) 21.0 ppb (20) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A N/A 40.0
 
May 22, 2022, 1 a.m. 14.0 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 14.0
 
May 22, 2022, midnight 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A N/A 13.0
 
May 21, 2022, 11 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A N/A 31.0
 
May 21, 2022, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (50) N/A N/A N/A 50.0
 
May 21, 2022, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A N/A 49.0
 
May 21, 2022, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A N/A 50.0
 
May 21, 2022, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (51) N/A N/A N/A 51.0
 
May 21, 2022, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A N/A 48.0
 
May 21, 2022, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A N/A 44.0
 
May 21, 2022, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A N/A 38.0
 
May 21, 2022, 3 p.m. 7.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A N/A 26.0
 
May 21, 2022, 2 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A N/A 21.0
 
May 21, 2022, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A N/A 18.0
 
May 21, 2022, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A N/A 18.0
 
May 21, 2022, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A N/A 16.0
 
May 21, 2022, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A N/A 12.0
 
May 21, 2022, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A N/A 12.0
 
May 21, 2022, 8 a.m. 11.0 ppb (11) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A N/A 11.0
 
May 21, 2022, 4 a.m. 22.0 ppb (21) 7.0 ppb (7) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A N/A 21.0
 
May 21, 2022, 3 a.m. 24.0 ppb (23) 8.0 ppb (8) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A N/A 23.0
 
May 21, 2022, 2 a.m. 27.0 ppb (26) 10.0 ppb (10) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A N/A 26.0
 
May 21, 2022, 1 a.m. 33.0 ppb (32) 12.0 ppb (12) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 32.0
 
May 21, 2022, midnight 30.0 ppb (29) 10.0 ppb (10) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A N/A 29.0
 
May 20, 2022, 11 p.m. 72.0 ppb (71) 40.0 ppb (38) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A N/A 71.0
 
May 20, 2022, 10 p.m. 34.0 ppb (33) 15.0 ppb (15) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A N/A 33.0
 
May 20, 2022, 9 p.m. 44.0 ppb (42) 19.0 ppb (18) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A N/A 42.0
 
May 20, 2022, 7 p.m. 18.0 ppb (17) 5.0 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A N/A 25.0
 
May 20, 2022, 6 p.m. 7.0 ppb (7) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A N/A 39.0
 
May 20, 2022, 5 p.m. 10.0 ppb (10) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A N/A 37.0
 
May 20, 2022, 4 p.m. 10.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A N/A 28.0
 
May 20, 2022, 3 p.m. 9.0 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A N/A 18.0
 
May 20, 2022, 2 p.m. 17.0 ppb (17) 7.0 ppb (7) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A N/A 17.0
 
May 20, 2022, 1 p.m. 20.0 ppb (19) 13.0 ppb (13) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 19.0
 
May 20, 2022, 11 a.m. 34.0 ppb (33) 29.0 ppb (28) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 33.0
 
May 20, 2022, 10 a.m. 76.0 ppb (75) 68.0 ppb (66) N/A 7.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A N/A 75.0
 
May 20, 2022, 9 a.m. 119.0 ppb (105) 109.0 ppb (103) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 105.0
 
May 20, 2022, 8 a.m. 70.0 ppb (69) 62.0 ppb (60) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 69.0
 
May 20, 2022, 7 a.m. 80.0 ppb (79) 72.0 ppb (71) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 79.0
 
May 20, 2022, 6 a.m. 72.0 ppb (71) 63.0 ppb (61) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 71.0
 
May 20, 2022, 5 a.m. 101.0 ppb (101) 87.0 ppb (87) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) N/A N/A N/A 101.0
 
May 20, 2022, 4 a.m. 130.0 ppb (107) 112.0 ppb (104) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 107.0
 
May 20, 2022, 3 a.m. 80.0 ppb (79) 63.0 ppb (61) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 79.0
 
May 20, 2022, 2 a.m. 73.0 ppb (72) 53.0 ppb (50) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 72.0
 
May 20, 2022, 1 a.m. 46.0 ppb (44) 24.0 ppb (23) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 44.0
 
May 20, 2022, 1 a.m. 46.0 ppb (44) 24.0 ppb (23) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 11.8 μg/m3 (50) 50.0
 
May 20, 2022, midnight 26.0 ppb (25) 11.0 ppb (11) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 25.0
 
May 20, 2022, midnight 26.0 ppb (25) 11.0 ppb (11) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A 11.8 μg/m3 (50) 50.0
 
May 19, 2022, 11 p.m. 13.0 ppb (13) 3.0 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 11.8 μg/m3 (50) 50.0
 
May 19, 2022, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 4.1 μg/m3 (18) 39.0
 
May 19, 2022, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 23.5 μg/m3 (75) 75.0
 
May 19, 2022, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 23.5 μg/m3 (75) 75.0
 
May 19, 2022, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A N/A 35.0
 
May 19, 2022, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 23.5 μg/m3 (75) 75.0
 
May 19, 2022, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A N/A 32.0
 
May 19, 2022, 2 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A N/A 30.0
 
May 19, 2022, 6 a.m. 37.0 ppb (35) 17.0 ppb (17) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A N/A 35.0
 
May 19, 2022, 5 a.m. 62.0 ppb (60) 36.0 ppb (34) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 60.0
 
May 19, 2022, 4 a.m. 65.0 ppb (63) 37.0 ppb (35) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 63.0
 
May 19, 2022, 3 a.m. 48.0 ppb (46) 27.0 ppb (26) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (7) N/A N/A N/A 46.0
 
May 19, 2022, 2 a.m. 10.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 37.4 μg/m3 (106) 106.0
 
May 19, 2022, 1 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 37.4 μg/m3 (106) 106.0
 
May 18, 2022, 11 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 9.1 μg/m3 (38) 41.0
 
May 18, 2022, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 8.0 μg/m3 (34) 45.0
 
May 18, 2022, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 3.2 μg/m3 (14) 49.0
 
May 18, 2022, 8 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 3.2 μg/m3 (14) 46.0
 
May 18, 2022, 7 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 1.3 μg/m3 (6) 46.0
 
May 18, 2022, 5 p.m. 7.0 ppb (7) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
May 18, 2022, 4 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.2 μg/m3 (1) 37.0
 
May 18, 2022, 4 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.2 μg/m3 (1) 37.0
 
May 18, 2022, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 1.2 μg/m3 (5) 33.0
 
May 18, 2022, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 1.2 μg/m3 (5) 33.0
 
May 18, 2022, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 0.2 μg/m3 (1) 28.0
 
May 18, 2022, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 0.2 μg/m3 (1) 28.0
 
May 18, 2022, 1 p.m. 6.0 ppb (6) 3.0 ppb (3) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 3.6 μg/m3 (16) 25.0
 
May 18, 2022, 1 p.m. 6.0 ppb (6) 3.0 ppb (3) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 3.6 μg/m3 (16) 25.0
 
May 18, 2022, noon 11.0 ppb (11) 6.0 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 3.6 μg/m3 (16) 17.0
 
May 18, 2022, noon 11.0 ppb (11) 6.0 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 3.6 μg/m3 (16) 17.0
 
May 18, 2022, 8 a.m. 75.0 ppb (74) 55.0 ppb (53) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 6.9 μg/m3 (29) 74.0
 
May 18, 2022, 8 a.m. 75.0 ppb (74) 55.0 ppb (53) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 6.9 μg/m3 (29) 74.0
 
May 18, 2022, 8 a.m. 75.0 ppb (74) 55.0 ppb (53) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 6.9 μg/m3 (29) 74.0
 
May 18, 2022, 2 a.m. 25.0 ppb (24) 13.0 ppb (13) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 8.7 μg/m3 (37) 37.0
 
May 18, 2022, 1 a.m. 15.0 ppb (15) 6.0 ppb (6) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 8.6 μg/m3 (36) 36.0
 
May 18, 2022, midnight 18.0 ppb (17) 9.0 ppb (9) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 7.3 μg/m3 (31) 31.0
 
May 17, 2022, 11 p.m. 13.0 ppb (13) 6.0 ppb (6) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 17, 2022, 10 p.m. 18.0 ppb (17) 9.0 ppb (9) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 6.1 μg/m3 (26) 26.0
 
May 17, 2022, 9 p.m. 7.0 ppb (7) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 4.7 μg/m3 (20) 32.0