ID: 2424

AQSQID: 300270006

Site Name: Lewistown

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

Updated: May 28, 2022, 12:42 p.m.

Location: Lewistown (E Aztec Dr), MT

Reporting: True, Located: True

Current AQI: 14.0

Lewistown (E Aztec Dr) MT, US: 47.048537, -109.455315

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 28, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A -4.0 μg/m3 (0) 3.0 μg/m3 (13) 14.0
 
May 28, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 1.0 μg/m3 (1) 5.4 μg/m3 (23) 23.0
 
May 28, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 1.0 μg/m3 (1) 5.4 μg/m3 (23) 23.0
 
May 28, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 0.0 μg/m3 (0) 1.7 μg/m3 (8) 16.0
 
May 28, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 0.0 μg/m3 (0) 1.7 μg/m3 (8) 16.0
 
May 28, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 5.0 μg/m3 (5) 3.9 μg/m3 (17) 17.0
 
May 28, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 5.0 μg/m3 (5) 3.9 μg/m3 (17) 17.0
 
May 28, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 4.0 μg/m3 (4) 9.0 μg/m3 (38) 38.0
 
May 28, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 4.0 μg/m3 (4) 9.0 μg/m3 (38) 38.0
 
May 28, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 7.0 μg/m3 (7) 4.6 μg/m3 (20) 23.0
 
May 28, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 7.0 μg/m3 (7) 4.6 μg/m3 (20) 23.0
 
May 28, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 4.0 μg/m3 (4) 0.5 μg/m3 (3) 22.0
 
May 28, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 4.0 μg/m3 (4) 0.5 μg/m3 (3) 22.0
 
May 28, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 11.0 μg/m3 (11) 6.1 μg/m3 (26) 26.0
 
May 27, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) 3.2 μg/m3 (14) 35.0
 
May 27, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) 3.2 μg/m3 (14) 35.0
 
May 27, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 11.0 μg/m3 (11) 3.2 μg/m3 (14) 31.0
 
May 27, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (10) 29.0
 
May 27, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (10) 29.0
 
May 27, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A -3.0 μg/m3 (0) 4.0 μg/m3 (17) 32.0
 
May 27, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A -3.0 μg/m3 (0) 5.9 μg/m3 (25) 31.0
 
May 27, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A -3.0 μg/m3 (0) 5.9 μg/m3 (25) 31.0
 
May 27, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 8.0 μg/m3 (8) 6.6 μg/m3 (28) 28.0
 
May 27, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.0 μg/m3 (9) 1.6 μg/m3 (7) 40.0
 
May 27, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 10.0 μg/m3 (10) 3.3 μg/m3 (14) 42.0
 
May 27, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 13.0 μg/m3 (13) -0.2 μg/m3 (0) 40.0
 
May 27, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 18.0 μg/m3 (17) 1.8 μg/m3 (8) 39.0
 
May 27, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 12.0 μg/m3 (12) 4.1 μg/m3 (18) 42.0
 
May 27, 2022, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 11.0 μg/m3 (11) 3.1 μg/m3 (13) 45.0
 
May 26, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 11.0 μg/m3 (11) 2.0 μg/m3 (9) 47.0
 
May 26, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 7.0 μg/m3 (7) 2.3 μg/m3 (10) 46.0
 
May 26, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (15) 44.0
 
May 26, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 45.0
 
May 26, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 45.0
 
May 26, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (9) 44.0
 
May 26, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (9) 44.0
 
May 26, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 3.0 μg/m3 (3) 0.9 μg/m3 (4) 44.0
 
May 26, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 3.0 μg/m3 (3) 0.9 μg/m3 (4) 44.0
 
May 26, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (13) 43.0
 
May 26, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (13) 43.0
 
May 26, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) 5.4 μg/m3 (23) 44.0
 
May 26, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) 5.4 μg/m3 (23) 44.0
 
May 26, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 19.0 μg/m3 (18) 8.9 μg/m3 (38) 38.0
 
May 26, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 6.0 μg/m3 (6) 2.6 μg/m3 (11) 28.0
 
May 26, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 6.0 μg/m3 (6) 2.6 μg/m3 (11) 28.0
 
May 26, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 6.0 μg/m3 (6) 1.4 μg/m3 (6) 23.0
 
May 26, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 8.0 μg/m3 (8) -0.2 μg/m3 (0) 25.0
 
May 26, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 3.3 μg/m3 (14) 27.0
 
May 26, 2022, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 10.0 μg/m3 (10) 3.9 μg/m3 (17) 27.0
 
May 25, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (13) 28.0
 
May 25, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) -0.7 μg/m3 (0) 30.0
 
May 25, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) -0.7 μg/m3 (0) 30.0
 
May 25, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 35.0
 
May 25, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 38.0
 
May 25, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 38.0
 
May 25, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 2.0 μg/m3 (2) 0.2 μg/m3 (1) 39.0
 
May 25, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 2.0 μg/m3 (2) 0.2 μg/m3 (1) 39.0
 
May 25, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.0 μg/m3 (7) 4.3 μg/m3 (18) 41.0
 
May 25, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.0 μg/m3 (7) 4.3 μg/m3 (18) 41.0
 
May 25, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 6.0 μg/m3 (6) 2.3 μg/m3 (10) 43.0
 
May 25, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 6.0 μg/m3 (6) 2.3 μg/m3 (10) 43.0
 
May 25, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 43.0
 
May 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A -2.0 μg/m3 (0) 7.6 μg/m3 (32) 45.0
 
May 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 1.0 μg/m3 (1) 3.1 μg/m3 (13) 32.0
 
May 25, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 26.0
 
May 25, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 16.0 μg/m3 (15) 3.7 μg/m3 (16) 35.0
 
May 25, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 17.0 μg/m3 (16) 1.2 μg/m3 (5) 35.0
 
May 25, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 9.0 μg/m3 (9) 2.6 μg/m3 (11) 48.0
 
May 25, 2022, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 19.0 μg/m3 (18) 8.4 μg/m3 (36) 48.0
 
May 24, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 1.0 μg/m3 (1) 4.2 μg/m3 (18) 47.0
 
May 24, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 1.0 μg/m3 (1) 2.4 μg/m3 (10) 46.0
 
May 24, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 45.0
 
May 24, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) -0.1 μg/m3 (0) 44.0
 
May 24, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 2.0 μg/m3 (2) 0.7 μg/m3 (3) 43.0
 
May 24, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 8.0 μg/m3 (8) -2.0 μg/m3 (0) 41.0
 
May 24, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 7.8 μg/m3 (33) 33.0
 
May 24, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.8 μg/m3 (33) 33.0
 
May 24, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (13) 25.0
 
May 24, 2022, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 4.0 μg/m3 (4) 8.6 μg/m3 (36) 36.0
 
May 24, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 9.0 μg/m3 (9) 0.0 μg/m3 (0) 25.0
 
May 24, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 8.0 μg/m3 (8) 7.7 μg/m3 (33) 33.0
 
May 24, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 6.9 μg/m3 (29) 29.0
 
May 24, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 8.0 μg/m3 (8) 0.1 μg/m3 (1) 29.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 1.5 μg/m3 (7) 29.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 1.5 μg/m3 (7) 29.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 15.0 μg/m3 (14) 4.1 μg/m3 (18) 30.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 15.0 μg/m3 (14) 4.1 μg/m3 (18) 30.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 25.0 μg/m3 (24) 1.3 μg/m3 (6) 29.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 25.0 μg/m3 (24) 1.3 μg/m3 (6) 29.0
 
May 24, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.0 μg/m3 (10) 2.8 μg/m3 (12) 41.0
 
May 24, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.0 μg/m3 (10) 2.8 μg/m3 (12) 41.0
 
May 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 11.0 μg/m3 (11) 4.4 μg/m3 (19) 43.0
 
May 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 11.0 μg/m3 (11) 4.4 μg/m3 (19) 43.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 5.0 μg/m3 (5) -2.5 μg/m3 (0) 45.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 5.0 μg/m3 (5) -2.5 μg/m3 (0) 45.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 2.0 μg/m3 (2) -1.5 μg/m3 (0) 45.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 2.0 μg/m3 (2) -1.5 μg/m3 (0) 45.0
 
May 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 44.0
 
May 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 4.0 μg/m3 (4) 0.1 μg/m3 (1) 44.0
 
May 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 7.0 μg/m3 (7) 3.9 μg/m3 (17) 44.0
 
May 23, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.0 μg/m3 (3) 16.6 μg/m3 (61) 61.0
 
May 23, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A -2.0 μg/m3 (0) 6.1 μg/m3 (26) 35.0
 
May 23, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 4.0 μg/m3 (4) 0.9 μg/m3 (4) 25.0
 
May 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 2.0 μg/m3 (2) 3.5 μg/m3 (15) 26.0
 
May 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 2.0 μg/m3 (2) 3.5 μg/m3 (15) 26.0
 
May 23, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 7.0 μg/m3 (7) 2.7 μg/m3 (12) 25.0
 
May 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 21.0 μg/m3 (20) 4.3 μg/m3 (18) 30.0
 
May 23, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.0 μg/m3 (9) 8.2 μg/m3 (35) 40.0
 
May 23, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (13) 43.0
 
May 23, 2022, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 14.0 μg/m3 (13) 3.9 μg/m3 (17) 42.0
 
May 22, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 17.0 μg/m3 (16) 4.2 μg/m3 (18) 42.0
 
May 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 2.0 μg/m3 (2) 3.8 μg/m3 (16) 42.0
 
May 22, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 9.0 μg/m3 (9) 0.0 μg/m3 (0) 42.0
 
May 22, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 7.0 μg/m3 (7) 4.3 μg/m3 (18) 42.0
 
May 22, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.0 μg/m3 (7) 6.4 μg/m3 (27) 41.0
 
May 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 4.0 μg/m3 (4) 3.6 μg/m3 (16) 41.0
 
May 22, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 1.0 μg/m3 (1) 3.2 μg/m3 (14) 40.0
 
May 22, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A -2.0 μg/m3 (0) 1.8 μg/m3 (8) 38.0
 
May 22, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A -4.0 μg/m3 (0) 8.4 μg/m3 (36) 37.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A -1.0 μg/m3 (0) 4.9 μg/m3 (21) 29.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A -1.0 μg/m3 (0) 4.9 μg/m3 (21) 29.0
 
May 22, 2022, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 5.0 μg/m3 (5) 1.2 μg/m3 (5) 25.0
 
May 22, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 4.0 μg/m3 (4) 0.6 μg/m3 (3) 27.0
 
May 22, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 4.0 μg/m3 (4) -2.4 μg/m3 (0) 26.0
 
May 22, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 27.0
 
May 22, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 9.3 μg/m3 (39) 39.0
 
May 22, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 27.0
 
May 22, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 6.0 μg/m3 (6) 1.4 μg/m3 (6) 28.0
 
May 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 38.0
 
May 22, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 8.0 μg/m3 (8) 3.2 μg/m3 (14) 44.0
 
May 22, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 7.0 μg/m3 (7) 1.3 μg/m3 (6) 46.0
 
May 22, 2022, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 12.0 μg/m3 (12) 2.0 μg/m3 (9) 46.0
 
May 21, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 8.0 μg/m3 (8) N/A 46.0
 
May 21, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 45.0
 
May 21, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 6.0 μg/m3 (6) 2.4 μg/m3 (10) 46.0
 
May 21, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 6.0 μg/m3 (6) 6.9 μg/m3 (29) 46.0
 
May 21, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 3.0 μg/m3 (3) 5.6 μg/m3 (24) 45.0
 
May 21, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 9.0 μg/m3 (9) 6.1 μg/m3 (26) 44.0
 
May 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 2.0 μg/m3 (2) 5.5 μg/m3 (23) 43.0
 
May 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 44.0
 
May 21, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A -1.0 μg/m3 (0) 4.6 μg/m3 (20) 37.0
 
May 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 4.6 μg/m3 (20) 31.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 8.6 μg/m3 (36) 36.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 8.6 μg/m3 (36) 36.0
 
May 21, 2022, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 6.0 μg/m3 (6) 2.2 μg/m3 (10) 27.0
 
May 21, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 29.0
 
May 21, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 8.0 μg/m3 (8) 4.9 μg/m3 (21) 28.0
 
May 21, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 6.0 μg/m3 (6) 8.5 μg/m3 (36) 36.0
 
May 21, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 31.0
 
May 21, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.0 μg/m3 (9) 0.9 μg/m3 (4) 31.0
 
May 21, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 9.0 μg/m3 (9) 3.9 μg/m3 (17) 36.0
 
May 21, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 8.0 μg/m3 (8) 0.8 μg/m3 (4) 39.0
 
May 21, 2022, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 7.0 μg/m3 (7) 4.3 μg/m3 (18) 39.0
 
May 20, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 2.0 μg/m3 (2) 0.5 μg/m3 (3) 41.0
 
May 20, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 2.0 μg/m3 (2) -0.1 μg/m3 (0) 40.0
 
May 20, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 6.0 μg/m3 (6) 4.2 μg/m3 (18) 36.0
 
May 20, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (13) 35.0
 
May 20, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (16) 35.0
 
May 20, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 3.0 μg/m3 (3) 4.8 μg/m3 (20) 34.0
 
May 20, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) 4.3 μg/m3 (18) 32.0
 
May 20, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 7.0 μg/m3 (7) -2.2 μg/m3 (0) 31.0
 
May 20, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 3.0 μg/m3 (3) 5.9 μg/m3 (25) 27.0
 
May 20, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 0.0 μg/m3 (0) 2.4 μg/m3 (10) 28.0
 
May 20, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A -1.0 μg/m3 (0) 0.8 μg/m3 (4) 30.0
 
May 20, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 2.0 μg/m3 (2) -1.6 μg/m3 (0) 31.0
 
May 20, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 31.0
 
May 20, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 0.9 μg/m3 (4) 31.0
 
May 20, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) N/A 31.0