ID: 2375

AQSQID: 240270006

Site Name: Howard County Near Road

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

Updated: July 1, 2022, 7:45 a.m.

Location: Laurel (I 95), MD

Reporting: True, Located: True

Current AQI: 64.0

Laurel (I 95) MD, US: 39.143197, -76.846192

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 1, 2022, 6 a.m. 65.4 ppb (64) 35.4 ppb (34) N/A 30.0 ppb (29) N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
July 1, 2022, 5 a.m. 65.8 ppb (64) 33.1 ppb (32) N/A 33.0 ppb (32) N/A N/A N/A 0.25 ppb (3) N/A 15.0 μg/m3 (58) 64.0
 
July 1, 2022, 4 a.m. 61.9 ppb (60) 28.7 ppb (28) N/A 33.0 ppb (32) N/A N/A N/A 0.33 ppb (4) N/A 15.0 μg/m3 (58) 60.0
 
July 1, 2022, 4 a.m. 61.9 ppb (60) 28.7 ppb (28) N/A 33.0 ppb (32) N/A N/A N/A 0.3 ppb (4) N/A 15.0 μg/m3 (58) 60.0
 
July 1, 2022, 3 a.m. 60.4 ppb (58) 24.3 ppb (23) N/A 36.0 ppb (34) N/A N/A N/A 0.33 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
July 1, 2022, 3 a.m. 60.4 ppb (58) 24.3 ppb (23) N/A 36.0 ppb (34) N/A N/A N/A 0.33 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
July 1, 2022, 3 a.m. 60.4 ppb (58) 24.3 ppb (23) N/A 36.0 ppb (34) N/A N/A N/A 0.33 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
July 1, 2022, 2 a.m. 51.6 ppb (49) 18.9 ppb (18) N/A 33.0 ppb (32) N/A N/A N/A 0.3 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
July 1, 2022, 2 a.m. 51.6 ppb (49) 18.9 ppb (18) N/A 33.0 ppb (32) N/A N/A N/A 0.3 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
July 1, 2022, 2 a.m. 51.6 ppb (49) 18.9 ppb (18) N/A 33.0 ppb (32) N/A N/A N/A 0.3 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
July 1, 2022, 1 a.m. 49.0 ppb (47) 18.9 ppb (18) N/A 30.0 ppb (29) N/A N/A N/A 0.36 ppb (5) N/A 19.0 μg/m3 (66) 66.0
 
July 1, 2022, midnight 45.5 ppb (43) 16.9 ppb (16) N/A 29.0 ppb (28) N/A N/A N/A 0.34 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
July 1, 2022, midnight 45.5 ppb (43) 16.9 ppb (16) N/A 29.0 ppb (28) N/A N/A N/A 0.34 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
July 1, 2022, midnight 45.5 ppb (43) 16.9 ppb (16) N/A 29.0 ppb (28) N/A N/A N/A 0.34 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
June 30, 2022, 11 p.m. 43.3 ppb (41) 14.1 ppb (14) N/A 29.0 ppb (28) N/A N/A N/A 0.33 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
June 30, 2022, 11 p.m. 43.3 ppb (41) 14.1 ppb (14) N/A 29.0 ppb (28) N/A N/A N/A 0.33 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
June 30, 2022, 10 p.m. 46.1 ppb (44) 16.5 ppb (16) N/A 30.0 ppb (29) N/A N/A N/A 0.26 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
June 30, 2022, 9 p.m. 38.0 ppb (36) 12.9 ppb (13) N/A 25.0 ppb (24) N/A N/A N/A 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
June 30, 2022, 9 p.m. 38.0 ppb (36) 12.9 ppb (13) N/A 25.0 ppb (24) N/A N/A N/A 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
June 30, 2022, 9 p.m. 38.0 ppb (36) 12.9 ppb (13) N/A 25.0 ppb (24) N/A N/A N/A 0.26 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
June 30, 2022, 7 p.m. 37.5 ppb (36) 13.2 ppb (13) N/A 24.0 ppb (23) N/A N/A N/A 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
June 30, 2022, 7 p.m. 37.5 ppb (36) 13.2 ppb (13) N/A 24.0 ppb (23) N/A N/A N/A 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
June 30, 2022, 3 p.m. 34.3 ppb (33) 12.8 ppb (13) N/A 21.0 ppb (20) N/A N/A N/A 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
June 30, 2022, 2 p.m. 24.8 ppb (24) 8.1 ppb (8) N/A 17.0 ppb (17) N/A N/A N/A 0.18 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 30, 2022, 10 a.m. 47.5 ppb (45) 34.9 ppb (33) N/A 13.0 ppb (13) N/A N/A N/A 0.27 ppb (4) N/A 10.0 μg/m3 (42) 45.0
 
June 30, 2022, 8 a.m. 57.9 ppb (56) 35.1 ppb (34) N/A 23.0 ppb (22) N/A N/A N/A 0.22 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
June 30, 2022, 6 a.m. 65.4 ppb (64) 30.6 ppb (29) N/A 35.0 ppb (34) N/A N/A N/A 0.24 ppb (3) N/A 11.0 μg/m3 (46) 64.0
 
June 30, 2022, 6 a.m. 59.1 ppb (57) 31.3 ppb (30) N/A 28.0 ppb (27) N/A N/A N/A 0.24 ppb (3) N/A 11.0 μg/m3 (46) 57.0
 
June 30, 2022, 6 a.m. 59.1 ppb (57) 31.3 ppb (30) N/A 28.0 ppb (27) N/A N/A N/A 0.24 ppb (3) N/A 11.0 μg/m3 (46) 57.0
 
June 30, 2022, 5 a.m. 59.1 ppb (57) 31.3 ppb (30) N/A 28.0 ppb (27) N/A N/A N/A 0.23 ppb (3) N/A 13.0 μg/m3 (53) 57.0
 
June 30, 2022, 5 a.m. 59.1 ppb (57) 31.3 ppb (30) N/A 28.0 ppb (27) N/A N/A N/A 0.23 ppb (3) N/A 13.0 μg/m3 (53) 57.0
 
June 30, 2022, 4 a.m. 65.4 ppb (64) 30.6 ppb (29) N/A 35.0 ppb (34) N/A N/A N/A 0.33 ppb (4) N/A 12.0 μg/m3 (50) 64.0
 
June 30, 2022, 4 a.m. 65.4 ppb (64) 30.6 ppb (29) N/A 35.0 ppb (34) N/A N/A N/A 0.26 ppb (4) N/A 12.0 μg/m3 (50) 64.0
 
June 30, 2022, 2 a.m. 71.5 ppb (70) 31.5 ppb (30) N/A 40.0 ppb (38) N/A N/A N/A 0.33 ppb (4) N/A 10.0 μg/m3 (42) 70.0
 
June 30, 2022, 1 a.m. 67.3 ppb (66) 28.7 ppb (28) N/A 39.0 ppb (37) N/A N/A N/A 0.36 ppb (5) N/A 12.0 μg/m3 (50) 66.0
 
June 30, 2022, 1 a.m. 67.3 ppb (66) 28.7 ppb (28) N/A 39.0 ppb (37) N/A N/A N/A 0.36 ppb (5) N/A 12.0 μg/m3 (50) 66.0
 
June 30, 2022, midnight 60.2 ppb (58) 25.3 ppb (24) N/A 35.0 ppb (34) N/A N/A N/A 0.27 ppb (4) N/A 11.0 μg/m3 (46) 58.0
 
June 30, 2022, midnight 60.2 ppb (58) 25.3 ppb (24) N/A 35.0 ppb (34) N/A N/A N/A 0.27 ppb (4) N/A 11.0 μg/m3 (46) 58.0
 
June 29, 2022, 11 p.m. 31.9 ppb (31) 8.7 ppb (9) N/A 23.0 ppb (22) N/A N/A N/A 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
June 29, 2022, 11 p.m. 31.9 ppb (31) 8.7 ppb (9) N/A 23.0 ppb (22) N/A N/A N/A 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
June 29, 2022, 10 p.m. 29.0 ppb (28) 9.3 ppb (9) N/A 20.0 ppb (19) N/A N/A N/A 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
June 29, 2022, 10 p.m. 29.0 ppb (28) 9.3 ppb (9) N/A 20.0 ppb (19) N/A N/A N/A 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
June 29, 2022, 9 p.m. 26.9 ppb (26) 9.0 ppb (9) N/A 18.0 ppb (17) N/A N/A N/A 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 29, 2022, noon 69.5 ppb (68) 42.6 ppb (41) N/A 27.0 ppb (26) N/A N/A N/A 0.38 ppb (5) N/A 12.0 μg/m3 (50) 68.0
 
June 29, 2022, noon 69.5 ppb (68) 42.6 ppb (41) N/A 27.0 ppb (26) N/A N/A N/A 0.38 ppb (5) N/A 12.0 μg/m3 (50) 68.0
 
June 29, 2022, 10 a.m. 65.8 ppb (64) 51.9 ppb (49) N/A 14.0 ppb (14) N/A N/A N/A 0.28 ppb (4) N/A 7.0 μg/m3 (30) 64.0
 
June 29, 2022, 10 a.m. 65.8 ppb (64) 51.9 ppb (49) N/A 14.0 ppb (14) N/A N/A N/A 0.28 ppb (4) N/A 7.0 μg/m3 (30) 64.0
 
June 29, 2022, 9 a.m. 54.8 ppb (52) 41.4 ppb (40) N/A 13.0 ppb (13) N/A N/A N/A 0.24 ppb (3) N/A 8.0 μg/m3 (34) 52.0
 
June 29, 2022, 8 a.m. 60.5 ppb (58) 41.3 ppb (39) N/A 19.0 ppb (18) N/A N/A N/A 0.19 ppb (3) N/A 6.0 μg/m3 (25) 58.0
 
June 29, 2022, 7 a.m. 60.5 ppb (58) 41.3 ppb (39) N/A 19.0 ppb (18) N/A N/A N/A 0.2 ppb (3) N/A 7.0 μg/m3 (30) 58.0
 
June 29, 2022, 7 a.m. 60.5 ppb (58) 41.3 ppb (39) N/A 19.0 ppb (18) N/A N/A N/A 0.2 ppb (3) N/A 7.0 μg/m3 (30) 58.0
 
June 29, 2022, 6 a.m. 64.3 ppb (62) 43.4 ppb (41) N/A 21.0 ppb (20) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 62.0
 
June 29, 2022, 2 a.m. 71.3 ppb (70) 33.3 ppb (32) N/A 38.0 ppb (36) N/A N/A N/A 0.27 ppb (4) N/A 9.0 μg/m3 (38) 70.0
 
June 28, 2022, 11 p.m. 28.5 ppb (27) 9.0 ppb (9) N/A 20.0 ppb (19) N/A N/A N/A 0.13 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
June 28, 2022, 10 p.m. 22.9 ppb (22) 6.9 ppb (7) N/A 16.0 ppb (16) N/A N/A N/A 0.13 ppb (2) N/A 0.0 μg/m3 (0) 22.0
 
June 28, 2022, 10 p.m. 22.9 ppb (22) 6.9 ppb (7) N/A 16.0 ppb (16) N/A N/A N/A 0.13 ppb (2) N/A 0.0 μg/m3 (0) 22.0
 
June 28, 2022, 9 p.m. 14.7 ppb (14) 6.4 ppb (7) N/A 8.0 ppb (8) N/A N/A N/A 0.11 ppb (2) N/A -1.0 μg/m3 (0) 14.0
 
June 28, 2022, 8 p.m. 14.3 ppb (14) 5.7 ppb (6) N/A 9.0 ppb (9) N/A N/A N/A 0.12 ppb (2) N/A 1.0 μg/m3 (5) 14.0
 
June 28, 2022, 8 p.m. 14.3 ppb (14) 5.7 ppb (6) N/A 9.0 ppb (9) N/A N/A N/A 0.12 ppb (2) N/A 1.0 μg/m3 (5) 14.0
 
June 28, 2022, 7 p.m. 11.7 ppb (12) 4.9 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A 0.12 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
June 28, 2022, 7 p.m. 11.7 ppb (12) 4.9 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A 0.12 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
June 28, 2022, 11 a.m. 57.0 ppb (55) 37.0 ppb (35) N/A 20.0 ppb (19) N/A N/A N/A 0.22 ppb (3) N/A 4.0 μg/m3 (17) 55.0
 
June 28, 2022, 10 a.m. 66.3 ppb (65) 44.1 ppb (42) N/A 22.0 ppb (21) N/A N/A N/A 0.19 ppb (3) N/A 6.0 μg/m3 (25) 65.0
 
June 28, 2022, 8 a.m. 18.1 ppb (18) 7.3 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.12 ppb (2) N/A 2.0 μg/m3 (9) 18.0
 
June 28, 2022, 8 a.m. 18.1 ppb (18) 7.3 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.12 ppb (2) N/A 2.0 μg/m3 (9) 18.0
 
June 28, 2022, 8 a.m. 18.1 ppb (18) 7.3 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.12 ppb (2) N/A 2.0 μg/m3 (9) 18.0
 
June 28, 2022, 7 a.m. 20.5 ppb (20) 8.3 ppb (8) N/A 12.0 ppb (12) N/A N/A N/A 0.12 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 28, 2022, 6 a.m. 28.0 ppb (27) 8.2 ppb (8) N/A 20.0 ppb (19) N/A N/A N/A 0.12 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
June 28, 2022, 5 a.m. 21.1 ppb (20) 5.2 ppb (5) N/A 16.0 ppb (16) N/A N/A N/A 0.11 ppb (2) N/A 4.0 μg/m3 (17) 20.0
 
June 28, 2022, 2 a.m. 40.2 ppb (38) 15.1 ppb (15) N/A 25.0 ppb (24) N/A N/A N/A 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
June 28, 2022, 1 a.m. 28.6 ppb (27) 11.7 ppb (12) N/A 17.0 ppb (17) N/A N/A N/A 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
June 28, 2022, 1 a.m. 28.6 ppb (27) 11.7 ppb (12) N/A 17.0 ppb (17) N/A N/A N/A 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
June 28, 2022, midnight 9.8 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A 0.11 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
June 28, 2022, midnight 9.8 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A 0.11 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 11 p.m. 10.8 ppb (11) 3.3 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.1 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
June 27, 2022, 11 p.m. 10.8 ppb (11) 3.3 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.1 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
June 27, 2022, 10 p.m. 17.6 ppb (17) 5.9 ppb (6) N/A 12.0 ppb (12) N/A N/A N/A 0.11 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 10 p.m. 17.6 ppb (17) 5.9 ppb (6) N/A 12.0 ppb (12) N/A N/A N/A 0.11 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 10 p.m. 17.6 ppb (17) 5.9 ppb (6) N/A 12.0 ppb (12) N/A N/A N/A 0.11 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 9 p.m. 17.6 ppb (17) 6.2 ppb (6) N/A 11.0 ppb (11) N/A N/A N/A 0.13 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 27, 2022, 9 p.m. 17.6 ppb (17) 6.2 ppb (6) N/A 11.0 ppb (11) N/A N/A N/A 0.13 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 27, 2022, 8 p.m. 10.7 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A 0.12 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
June 27, 2022, 8 p.m. 10.7 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A 0.12 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
June 27, 2022, 4 p.m. 13.8 ppb (14) 7.0 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 4 p.m. 13.8 ppb (14) 7.0 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 2 p.m. 18.8 ppb (18) 8.9 ppb (9) N/A 10.0 ppb (10) N/A N/A N/A 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
June 27, 2022, 1 p.m. 29.3 ppb (28) 15.8 ppb (15) N/A 14.0 ppb (14) N/A N/A N/A 0.25 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
June 27, 2022, 11 a.m. 69.1 ppb (68) 46.2 ppb (44) N/A 23.0 ppb (22) N/A N/A N/A 0.41 ppb (5) N/A 10.0 μg/m3 (42) 68.0
 
June 27, 2022, 11 a.m. 69.1 ppb (68) 46.2 ppb (44) N/A 23.0 ppb (22) N/A N/A N/A 0.41 ppb (5) N/A 10.0 μg/m3 (42) 68.0
 
June 27, 2022, 10 a.m. 61.7 ppb (60) 38.9 ppb (37) N/A 23.0 ppb (22) N/A N/A N/A 0.37 ppb (5) N/A 10.0 μg/m3 (42) 60.0
 
June 27, 2022, 10 a.m. 61.7 ppb (60) 38.9 ppb (37) N/A 23.0 ppb (22) N/A N/A N/A 0.37 ppb (5) N/A 10.0 μg/m3 (42) 60.0
 
June 27, 2022, 7 a.m. 24.6 ppb (24) 9.9 ppb (10) N/A 15.0 ppb (15) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 6 a.m. 31.1 ppb (30) 16.0 ppb (16) N/A 15.0 ppb (15) N/A N/A N/A 0.32 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 27, 2022, 5 a.m. 28.6 ppb (27) 13.2 ppb (13) N/A 15.0 ppb (15) N/A N/A N/A 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
June 27, 2022, 4 a.m. 33.8 ppb (32) 14.2 ppb (14) N/A 20.0 ppb (19) N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (30) 32.0
 
June 27, 2022, 3 a.m. 39.6 ppb (38) 17.5 ppb (17) N/A 22.0 ppb (21) N/A N/A N/A 0.29 ppb (4) N/A 6.0 μg/m3 (25) 38.0
 
June 27, 2022, 2 a.m. 35.2 ppb (34) 15.2 ppb (15) N/A 20.0 ppb (19) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 34.0
 
June 27, 2022, 1 a.m. 23.0 ppb (22) 6.7 ppb (7) N/A 16.0 ppb (16) N/A N/A N/A 0.22 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, midnight 23.8 ppb (23) 6.8 ppb (7) N/A 17.0 ppb (17) N/A N/A N/A 0.21 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 26, 2022, 10 p.m. 25.1 ppb (24) 9.9 ppb (10) N/A 15.0 ppb (15) N/A N/A N/A 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 9 p.m. 18.1 ppb (18) 7.3 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.29 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 8 p.m. 19.0 ppb (18) 8.7 ppb (9) N/A 10.0 ppb (10) N/A N/A N/A 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 5 p.m. 12.8 ppb (13) 4.8 ppb (5) N/A 8.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, 4 p.m. 16.0 ppb (16) 6.2 ppb (6) N/A 10.0 ppb (10) N/A N/A N/A 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 3 p.m. 17.1 ppb (17) 6.9 ppb (7) N/A 10.0 ppb (10) N/A N/A N/A 0.28 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 2 p.m. 17.7 ppb (17) 7.9 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, 1 p.m. 22.5 ppb (22) 10.9 ppb (11) N/A 12.0 ppb (12) N/A N/A N/A 0.28 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 26, 2022, 11 a.m. 29.3 ppb (28) 13.6 ppb (13) N/A 16.0 ppb (16) N/A N/A N/A 0.26 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 26, 2022, 10 a.m. 30.6 ppb (29) 14.1 ppb (14) N/A 17.0 ppb (17) N/A N/A N/A 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, 9 a.m. 32.8 ppb (31) 13.7 ppb (13) N/A 19.0 ppb (18) N/A N/A N/A 0.27 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 8 a.m. 25.7 ppb (25) 9.6 ppb (10) N/A 16.0 ppb (16) N/A N/A N/A 0.22 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 7 a.m. 30.3 ppb (29) 10.5 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 7 a.m. 30.3 ppb (29) 10.5 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 6 a.m. 33.5 ppb (32) 14.2 ppb (14) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
June 26, 2022, 5 a.m. 43.0 ppb (41) 20.6 ppb (20) N/A 22.0 ppb (21) N/A N/A N/A 0.37 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
June 26, 2022, 4 a.m. 45.3 ppb (43) 22.6 ppb (22) N/A 23.0 ppb (22) N/A N/A N/A 0.4 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
June 26, 2022, 2 a.m. 35.6 ppb (34) 11.8 ppb (12) N/A 24.0 ppb (23) N/A N/A N/A 0.4 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, midnight 29.8 ppb (29) 11.6 ppb (11) N/A 18.0 ppb (17) N/A N/A N/A 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 25, 2022, 11 p.m. 21.8 ppb (21) 8.7 ppb (9) N/A 13.0 ppb (13) N/A N/A N/A 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
June 25, 2022, 8 p.m. 25.9 ppb (25) 12.0 ppb (12) N/A 14.0 ppb (14) N/A N/A N/A 0.32 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
June 25, 2022, 3 p.m. 36.6 ppb (35) 16.1 ppb (16) N/A 21.0 ppb (20) N/A N/A N/A 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
June 25, 2022, 3 p.m. 36.6 ppb (35) 16.1 ppb (16) N/A 21.0 ppb (20) N/A N/A N/A 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
June 25, 2022, 3 p.m. 36.6 ppb (35) 16.1 ppb (16) N/A 21.0 ppb (20) N/A N/A N/A 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
June 25, 2022, 2 p.m. 17.8 ppb (17) 6.8 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 25, 2022, 2 p.m. 17.8 ppb (17) 6.8 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 25, 2022, 2 p.m. 17.8 ppb (17) 6.8 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 25, 2022, 2 p.m. 17.8 ppb (17) 6.8 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 25, 2022, 1 p.m. 26.8 ppb (26) 12.0 ppb (12) N/A 15.0 ppb (15) N/A N/A N/A 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 25, 2022, noon 30.5 ppb (29) 16.7 ppb (16) N/A 14.0 ppb (14) N/A N/A N/A 0.35 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 25, 2022, 11 a.m. 66.0 ppb (64) 46.7 ppb (45) N/A 19.0 ppb (18) N/A N/A N/A 0.46 ppb (6) N/A 13.0 μg/m3 (53) 64.0
 
June 25, 2022, 10 a.m. 69.0 ppb (67) 55.9 ppb (54) N/A 13.0 ppb (13) N/A N/A N/A 0.44 ppb (5) N/A 9.0 μg/m3 (38) 67.0
 
June 25, 2022, 9 a.m. 50.0 ppb (48) 36.9 ppb (35) N/A 13.0 ppb (13) N/A N/A N/A 0.25 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
June 25, 2022, 3 a.m. 24.9 ppb (24) 5.7 ppb (6) N/A 19.0 ppb (18) N/A N/A N/A 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 25, 2022, 1 a.m. 40.6 ppb (39) 16.0 ppb (16) N/A 25.0 ppb (24) N/A N/A N/A 0.44 ppb (5) N/A 8.0 μg/m3 (34) 39.0
 
June 25, 2022, 1 a.m. 40.6 ppb (39) 16.0 ppb (16) N/A 25.0 ppb (24) N/A N/A N/A 0.44 ppb (5) N/A 8.0 μg/m3 (34) 39.0
 
June 25, 2022, midnight 46.8 ppb (45) 21.6 ppb (21) N/A 25.0 ppb (24) N/A N/A N/A 0.44 ppb (5) N/A 10.0 μg/m3 (42) 45.0
 
June 24, 2022, 10 p.m. 41.0 ppb (39) 14.6 ppb (14) N/A 26.0 ppb (25) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 39.0
 
June 24, 2022, 9 p.m. 18.3 ppb (18) 5.5 ppb (6) N/A 13.0 ppb (13) N/A N/A N/A 0.22 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
June 24, 2022, 8 p.m. 27.6 ppb (27) 10.0 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.27 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 24, 2022, 7 p.m. 18.8 ppb (18) 6.8 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 24, 2022, 7 p.m. 18.8 ppb (18) 6.8 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 24, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 24, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
June 24, 2022, 1 p.m. 85.0 ppb (85) 70.1 ppb (69) N/A 15.0 ppb (15) N/A N/A N/A 0.27 ppb (4) N/A 9.0 μg/m3 (38) 85.0
 
June 24, 2022, noon 85.0 ppb (85) 70.1 ppb (69) N/A 15.0 ppb (15) N/A N/A N/A 0.38 ppb (5) N/A 13.0 μg/m3 (53) 85.0
 
June 24, 2022, 11 a.m. 85.0 ppb (85) 70.1 ppb (69) N/A 15.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (34) 85.0
 
June 24, 2022, 11 a.m. 85.0 ppb (85) 70.1 ppb (69) N/A 15.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (34) 85.0
 
June 24, 2022, 10 a.m. 80.3 ppb (80) 70.3 ppb (69) N/A 10.0 ppb (10) N/A N/A N/A 0.41 ppb (5) N/A 11.0 μg/m3 (46) 80.0
 
June 24, 2022, 8 a.m. 29.1 ppb (28) 19.5 ppb (19) N/A 10.0 ppb (10) N/A N/A N/A 0.19 ppb (3) N/A 4.0 μg/m3 (17) 28.0
 
June 24, 2022, 7 a.m. 29.1 ppb (28) 19.5 ppb (19) N/A 10.0 ppb (10) N/A N/A N/A 0.19 ppb (3) N/A 4.0 μg/m3 (17) 28.0
 
June 24, 2022, 6 a.m. 33.7 ppb (32) 22.2 ppb (21) N/A 11.0 ppb (11) N/A N/A N/A 0.18 ppb (3) N/A 5.0 μg/m3 (21) 32.0
 
June 24, 2022, 6 a.m. 33.7 ppb (32) 22.2 ppb (21) N/A 11.0 ppb (11) N/A N/A N/A 0.18 ppb (3) N/A 5.0 μg/m3 (21) 32.0
 
June 24, 2022, 4 a.m. 62.5 ppb (61) 42.2 ppb (40) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 61.0
 
June 24, 2022, 2 a.m. 27.6 ppb (27) 7.8 ppb (8) N/A 20.0 ppb (19) N/A N/A N/A 0.17 ppb (3) N/A 6.0 μg/m3 (25) 27.0
 
June 24, 2022, 1 a.m. 43.9 ppb (42) 20.0 ppb (19) N/A 24.0 ppb (23) N/A N/A N/A 0.23 ppb (3) N/A 6.0 μg/m3 (25) 42.0
 
June 24, 2022, midnight 39.2 ppb (37) 17.1 ppb (17) N/A 22.0 ppb (21) N/A N/A N/A 0.21 ppb (3) N/A 8.0 μg/m3 (34) 37.0
 
June 23, 2022, 10 p.m. 40.9 ppb (39) 20.0 ppb (19) N/A 21.0 ppb (20) N/A N/A N/A 0.25 ppb (3) N/A 6.0 μg/m3 (25) 39.0
 
June 23, 2022, 9 p.m. 36.0 ppb (34) 16.0 ppb (16) N/A 20.0 ppb (19) N/A N/A N/A 0.2 ppb (3) N/A 6.0 μg/m3 (25) 34.0
 
June 23, 2022, 8 p.m. 35.6 ppb (34) 17.2 ppb (17) N/A 18.0 ppb (17) N/A N/A N/A 0.22 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
June 23, 2022, 8 p.m. 35.6 ppb (34) 17.2 ppb (17) N/A 18.0 ppb (17) N/A N/A N/A 0.22 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
June 23, 2022, 8 p.m. 35.6 ppb (34) 17.2 ppb (17) N/A 18.0 ppb (17) N/A N/A N/A 0.22 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
June 23, 2022, 7 p.m. 33.2 ppb (32) 17.1 ppb (17) N/A 16.0 ppb (16) N/A N/A N/A 0.21 ppb (3) N/A 4.0 μg/m3 (17) 32.0
 
June 23, 2022, 7 p.m. 33.2 ppb (32) 17.1 ppb (17) N/A 16.0 ppb (16) N/A N/A N/A 0.21 ppb (3) N/A 4.0 μg/m3 (17) 32.0
 
June 23, 2022, 6 p.m. 38.3 ppb (37) 19.0 ppb (18) N/A 19.0 ppb (18) N/A N/A N/A 0.18 ppb (3) N/A 3.0 μg/m3 (13) 37.0
 
June 23, 2022, 6 p.m. 38.3 ppb (37) 19.0 ppb (18) N/A 19.0 ppb (18) N/A N/A N/A 0.18 ppb (3) N/A 3.0 μg/m3 (13) 37.0
 
June 23, 2022, 3 p.m. 48.6 ppb (46) 23.9 ppb (23) N/A 25.0 ppb (24) N/A N/A N/A 0.16 ppb (3) N/A 1.0 μg/m3 (5) 46.0
 
June 23, 2022, 9 a.m. 39.3 ppb (38) 17.0 ppb (17) N/A 22.0 ppb (21) N/A N/A N/A 0.1 ppb (2) N/A 4.0 μg/m3 (17) 38.0
 
June 23, 2022, 8 a.m. 24.0 ppb (23) 9.4 ppb (9) N/A 15.0 ppb (15) N/A N/A N/A 0.02 ppb (0) N/A 3.0 μg/m3 (13) 23.0