ID: 2878

AQSQID: 300830002

Site Name: Sidney 201

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

Updated: April 10, 2021, 6:43 p.m.

Location: Lambert (Montana Hwy 201), MT

Reporting: True, Located: True

Current AQI: 46.0

Lambert (Montana Hwy 201) MT, US: 47.8679, -104.676864

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 17.0 μg/m3 (16) -0.7 μg/m3 (0) 46.0
 
April 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 29.0 μg/m3 (27) 1.3 μg/m3 (6) 42.0
 
April 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 30.0 μg/m3 (28) -1.8 μg/m3 (0) 38.0
 
April 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 19.0 μg/m3 (18) -2.9 μg/m3 (0) 36.0
 
April 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 4.0 μg/m3 (4) -1.8 μg/m3 (0) 34.0
 
April 10, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 2.0 μg/m3 (2) 3.4 μg/m3 (15) 34.0
 
April 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 2.0 μg/m3 (2) 0.2 μg/m3 (1) 35.0
 
April 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 2.0 μg/m3 (2) 5.1 μg/m3 (22) 36.0
 
April 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 36.0
 
April 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 1.0 μg/m3 (1) 2.3 μg/m3 (10) 36.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 36.0
 
April 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 2.0 μg/m3 (2) 1.2 μg/m3 (5) 35.0
 
April 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 2.0 μg/m3 (2) 2.7 μg/m3 (12) 34.0
 
April 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (4) 34.0
 
April 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 37.0
 
April 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 1.0 μg/m3 (1) 3.8 μg/m3 (16) 37.0
 
April 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 0.0 μg/m3 (0) 3.6 μg/m3 (16) 39.0
 
April 10, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 5.0 μg/m3 (5) 6.2 μg/m3 (26) 43.0
 
April 9, 2021, 11 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) 9.5 μg/m3 (40) 44.0
 
April 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 4.0 μg/m3 (4) -1.9 μg/m3 (0) 43.0
 
April 9, 2021, 9 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) 1.4 μg/m3 (6) 43.0
 
April 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 6.0 μg/m3 (6) 1.1 μg/m3 (5) 42.0
 
April 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 7.0 μg/m3 (7) -3.3 μg/m3 (0) 40.0
 
April 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 8.0 μg/m3 (8) 0.6 μg/m3 (3) 38.0
 
April 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 13.0 μg/m3 (13) 3.3 μg/m3 (14) 36.0
 
April 9, 2021, 4 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) 1.1 μg/m3 (5) 35.0
 
April 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 0.0 μg/m3 (0) 1.6 μg/m3 (7) 31.0
 
April 9, 2021, 2 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) -0.2 μg/m3 (0) 29.0
 
April 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 1.0 μg/m3 (1) 4.5 μg/m3 (19) 27.0
 
April 9, 2021, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 1.0 μg/m3 (1) 5.7 μg/m3 (24) 31.0
 
April 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 3.0 μg/m3 (3) 1.4 μg/m3 (6) 33.0
 
April 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 6.0 μg/m3 (6) 4.9 μg/m3 (21) 33.0
 
April 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 6.0 μg/m3 (6) 5.3 μg/m3 (23) 34.0
 
April 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 8.0 μg/m3 (8) 5.8 μg/m3 (25) 34.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 7.1 μg/m3 (30) 32.0
 
April 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (15) 31.0
 
April 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.0 μg/m3 (9) 3.9 μg/m3 (17) 32.0
 
April 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 11.0 μg/m3 (11) 3.6 μg/m3 (16) 37.0
 
April 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 8.0 μg/m3 (8) 5.3 μg/m3 (23) 45.0
 
April 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 7.0 μg/m3 (7) 3.5 μg/m3 (15) 43.0
 
April 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 12.0 μg/m3 (12) 6.8 μg/m3 (29) 43.0
 
April 9, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 31.0 μg/m3 (29) 12.7 μg/m3 (53) 53.0
 
April 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 50.0 μg/m3 (47) 20.7 μg/m3 (70) 70.0
 
April 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 37.0 μg/m3 (35) 6.0 μg/m3 (25) 44.0
 
April 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 16.0 μg/m3 (15) 7.9 μg/m3 (33) 46.0
 
April 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 16.0 μg/m3 (15) 2.4 μg/m3 (10) 44.0
 
April 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 19.0 μg/m3 (18) 6.7 μg/m3 (28) 41.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 17.0 μg/m3 (16) 5.0 μg/m3 (21) 39.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 25.0 μg/m3 (24) 3.0 μg/m3 (13) 38.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 23.0 μg/m3 (22) 3.4 μg/m3 (15) 37.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 16.0 μg/m3 (15) 2.0 μg/m3 (9) 36.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 15.0 μg/m3 (14) 1.1 μg/m3 (5) 35.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 14.0 μg/m3 (13) 4.7 μg/m3 (20) 36.0
 
April 8, 2021, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) 6.3 μg/m3 (27) 31.0
 
April 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 17.0 μg/m3 (16) 3.9 μg/m3 (17) 38.0
 
April 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 18.0 μg/m3 (17) 3.9 μg/m3 (17) 40.0
 
April 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 18.0 μg/m3 (17) 5.4 μg/m3 (23) 42.0
 
April 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 17.0 μg/m3 (16) 11.2 μg/m3 (47) 47.0
 
April 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 21.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
April 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 19.0 μg/m3 (18) 4.6 μg/m3 (20) 43.0
 
April 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 9.0 μg/m3 (9) 2.7 μg/m3 (12) 41.0
 
April 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 12.0 μg/m3 (12) 3.9 μg/m3 (17) 40.0
 
April 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 5.0 μg/m3 (5) 6.7 μg/m3 (28) 39.0
 
April 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 7.0 μg/m3 (7) 5.2 μg/m3 (22) 38.0
 
April 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.0 μg/m3 (13) 7.4 μg/m3 (31) 39.0
 
April 8, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 20.0 μg/m3 (19) 9.5 μg/m3 (40) 44.0
 
April 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 24.0 μg/m3 (23) 6.9 μg/m3 (29) 46.0
 
April 7, 2021, 10 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) 3.7 μg/m3 (16) 47.0
 
April 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 10.0 μg/m3 (10) 3.6 μg/m3 (16) 46.0
 
April 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 15.0 μg/m3 (14) 3.8 μg/m3 (16) 46.0
 
April 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 18.0 μg/m3 (17) 1.8 μg/m3 (8) 46.0
 
April 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 14.0 μg/m3 (13) 1.9 μg/m3 (8) 46.0
 
April 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 24.0 μg/m3 (23) 3.5 μg/m3 (15) 45.0
 
April 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 31.0 μg/m3 (29) 4.3 μg/m3 (18) 43.0
 
April 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 35.0 μg/m3 (33) 5.8 μg/m3 (25) 38.0
 
April 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 23.0 μg/m3 (22) 1.4 μg/m3 (6) 37.0
 
April 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 32.0
 
April 7, 2021, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (14) 33.0
 
April 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 12.0 μg/m3 (12) 5.5 μg/m3 (23) 32.0
 
April 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 2.0 μg/m3 (2) 4.8 μg/m3 (20) 34.0
 
April 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 6.8 μg/m3 (29) 35.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 14.0 μg/m3 (13) 4.9 μg/m3 (21) 36.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 12.0 μg/m3 (12) 5.9 μg/m3 (25) 36.0
 
April 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 11.0 μg/m3 (11) 4.9 μg/m3 (21) 37.0
 
April 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (23) 37.0
 
April 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 12.0 μg/m3 (12) 2.6 μg/m3 (11) 38.0
 
April 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.0 μg/m3 (11) 3.5 μg/m3 (15) 39.0
 
April 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 8.9 μg/m3 (38) 39.0
 
April 7, 2021, 1 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) 8.8 μg/m3 (37) 40.0
 
April 7, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 4.0 μg/m3 (4) 9.2 μg/m3 (39) 46.0
 
April 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 7.5 μg/m3 (32) 48.0
 
April 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 10.0 μg/m3 (10) 5.4 μg/m3 (23) 48.0
 
April 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 9.0 μg/m3 (9) 1.2 μg/m3 (5) 48.0
 
April 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 17.0 μg/m3 (16) 3.1 μg/m3 (13) 48.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 16.0 μg/m3 (15) 3.7 μg/m3 (16) 47.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 17.0 μg/m3 (16) 0.7 μg/m3 (3) 46.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 22.0 μg/m3 (21) 6.3 μg/m3 (27) 44.0
 
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 29.0 μg/m3 (27) 7.2 μg/m3 (31) 42.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 21.0 μg/m3 (20) 7.2 μg/m3 (31) 38.0
 
April 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 7.2 μg/m3 (31) 31.0
 
April 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 14.0 μg/m3 (13) 1.7 μg/m3 (8) 34.0
 
April 6, 2021, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.0 μg/m3 (11) 2.6 μg/m3 (11) 35.0
 
April 6, 2021, 11 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) 5.4 μg/m3 (23) 36.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 9.0 μg/m3 (9) 3.9 μg/m3 (17) 33.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.0 μg/m3 (10) 5.5 μg/m3 (23) 28.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 13.0 μg/m3 (13) 6.8 μg/m3 (29) 33.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (19) 35.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 36.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 10.0 μg/m3 (10) 5.9 μg/m3 (25) 38.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 10.0 μg/m3 (10) 1.8 μg/m3 (8) 38.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 8.0 μg/m3 (8) 5.2 μg/m3 (22) 36.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 6.0 μg/m3 (6) 2.1 μg/m3 (9) 38.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 6.0 μg/m3 (6) 6.9 μg/m3 (29) 38.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.0 μg/m3 (10) 7.8 μg/m3 (33) 41.0
 
April 5, 2021, 11 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) 3.7 μg/m3 (16) 43.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 11.0 μg/m3 (11) 2.5 μg/m3 (11) 44.0
 
April 5, 2021, 9 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) 2.9 μg/m3 (13) 44.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 10.0 μg/m3 (10) 1.0 μg/m3 (5) 43.0
 
April 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 11.0 μg/m3 (11) 2.2 μg/m3 (10) 42.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 12.0 μg/m3 (12) 2.5 μg/m3 (11) 41.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 15.0 μg/m3 (14) 5.2 μg/m3 (22) 41.0
 
April 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.0 μg/m3 (11) 3.7 μg/m3 (16) 39.0
 
April 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 7.0 μg/m3 (7) 3.3 μg/m3 (14) 38.0
 
April 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 14.0 μg/m3 (13) 3.9 μg/m3 (17) 37.0
 
April 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 22.0 μg/m3 (21) 8.6 μg/m3 (36) 37.0
 
April 5, 2021, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 13.0 μg/m3 (13) 7.5 μg/m3 (32) 36.0
 
April 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 11.0 μg/m3 (11) 7.2 μg/m3 (31) 38.0
 
April 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 10.0 μg/m3 (10) 4.8 μg/m3 (20) 36.0
 
April 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 19.0 μg/m3 (18) 9.2 μg/m3 (39) 39.0
 
April 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 23.0 μg/m3 (22) 15.2 μg/m3 (58) 58.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 17.0 μg/m3 (16) 10.6 μg/m3 (45) 45.0
 
April 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 11.0 μg/m3 (11) 6.5 μg/m3 (28) 38.0
 
April 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 17.0 μg/m3 (16) 4.8 μg/m3 (20) 38.0
 
April 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 39.0
 
April 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 39.0
 
April 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 10.0 μg/m3 (10) 6.6 μg/m3 (28) 39.0
 
April 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 10.0 μg/m3 (10) 7.9 μg/m3 (33) 43.0
 
April 5, 2021, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 15.0 μg/m3 (14) 1.3 μg/m3 (6) 47.0
 
April 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 6.0 μg/m3 (6) -4.7 μg/m3 (0) 50.0
 
April 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 13.0 μg/m3 (13) 6.4 μg/m3 (27) 48.0
 
April 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 18.0 μg/m3 (17) 5.2 μg/m3 (22) 47.0
 
April 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 20.0 μg/m3 (19) 7.3 μg/m3 (31) 47.0
 
April 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 21.0 μg/m3 (20) 7.9 μg/m3 (33) 45.0
 
April 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 24.0 μg/m3 (23) 4.9 μg/m3 (21) 45.0
 
April 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 34.0 μg/m3 (32) 7.5 μg/m3 (32) 42.0
 
April 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 34.0 μg/m3 (32) 9.2 μg/m3 (39) 39.0
 
April 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 21.0 μg/m3 (20) 8.4 μg/m3 (36) 36.0
 
April 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 23.0 μg/m3 (22) 7.3 μg/m3 (31) 31.0
 
April 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 21.0 μg/m3 (20) 8.2 μg/m3 (35) 35.0
 
April 4, 2021, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 27.0 μg/m3 (25) 8.3 μg/m3 (35) 35.0
 
April 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 21.0 μg/m3 (20) 4.3 μg/m3 (18) 25.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 20.0 μg/m3 (19) 7.3 μg/m3 (31) 31.0
 
April 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 20.0 μg/m3 (19) 9.4 μg/m3 (40) 40.0
 
April 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 21.0 μg/m3 (20) 12.9 μg/m3 (53) 53.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.0 μg/m3 (14) 10.8 μg/m3 (46) 46.0
 
April 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.0 μg/m3 (14) 5.9 μg/m3 (25) 37.0
 
April 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.0 μg/m3 (11) 7.9 μg/m3 (33) 39.0
 
April 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 5.4 μg/m3 (23) 39.0
 
April 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 8.0 μg/m3 (8) 8.3 μg/m3 (35) 40.0
 
April 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 9.0 μg/m3 (9) 8.9 μg/m3 (38) 41.0
 
April 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.0 μg/m3 (11) 8.1 μg/m3 (34) 39.0
 
April 4, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) 5.5 μg/m3 (23) 44.0
 
April 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 13.0 μg/m3 (13) 0.8 μg/m3 (4) 49.0
 
April 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 13.0 μg/m3 (13) 8.4 μg/m3 (36) 50.0
 
April 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 13.0 μg/m3 (13) 8.3 μg/m3 (35) 50.0
 
April 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 12.0 μg/m3 (12) 6.4 μg/m3 (27) 50.0
 
April 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 10.0 μg/m3 (10) 2.9 μg/m3 (13) 49.0
 
April 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 12.0 μg/m3 (12) 3.8 μg/m3 (16) 49.0