ID: 864

AQSQID: 490494001

Site Name: Lindon

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

Updated: March 6, 2021, 11:32 a.m.

Location: Lindon (Battle Creek), UT

Reporting: True, Located: True

Current AQI: 17.0

Lindon (Battle Creek) UT, US: 40.3414, -111.7136

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 6, 2021, 10 a.m. 16.7 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (16) N/A N/A 18.0 ppb (17) 0.3 ppb (4) N/A 3.6 μg/m3 (16) 17.0
 
March 6, 2021, 9 a.m. 14.7 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (14) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 4.1 μg/m3 (18) 18.0
 
March 6, 2021, 8 a.m. 15.0 ppb (15) 0.9 ppb (1) N/A 14.0 ppb (14) N/A N/A 20.0 ppb (19) 0.3 ppb (4) N/A 4.1 μg/m3 (18) 19.0
 
March 6, 2021, 7 a.m. 18.1 ppb (18) 1.3 ppb (2) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) 0.4 ppb (5) N/A 2.9 μg/m3 (13) 18.0
 
March 6, 2021, 6 a.m. 17.3 ppb (17) 0.9 ppb (1) N/A 16.0 ppb (16) N/A N/A 18.0 ppb (17) 0.4 ppb (5) N/A 2.8 μg/m3 (12) 17.0
 
March 6, 2021, 5 a.m. 17.3 ppb (17) 1.1 ppb (2) N/A 16.0 ppb (16) N/A N/A 19.0 ppb (18) 0.4 ppb (5) N/A 4.5 μg/m3 (19) 19.0
 
March 6, 2021, 4 a.m. 19.2 ppb (19) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A 19.0 ppb (18) 0.4 ppb (5) N/A 11.1 μg/m3 (47) 47.0
 
March 6, 2021, 3 a.m. 17.3 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (17) N/A N/A 27.0 ppb (25) 0.4 ppb (5) N/A 6.1 μg/m3 (26) 26.0
 
March 6, 2021, 2 a.m. 18.8 ppb (18) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (23) 0.4 ppb (5) N/A 7.4 μg/m3 (31) 31.0
 
March 6, 2021, 1 a.m. 15.6 ppb (15) 0.7 ppb (1) N/A 15.0 ppb (15) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 35.0
 
March 6, 2021, midnight 9.8 ppb (10) 1.2 ppb (2) N/A 9.0 ppb (9) N/A N/A 47.0 ppb (44) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 44.0
 
March 5, 2021, 11 p.m. 12.4 ppb (12) 2.6 ppb (3) N/A 10.0 ppb (10) N/A N/A 47.0 ppb (44) 0.3 ppb (4) N/A 6.5 μg/m3 (28) 44.0
 
March 5, 2021, 10 p.m. 12.0 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (9) N/A N/A 48.0 ppb (45) 0.3 ppb (4) N/A 8.5 μg/m3 (36) 45.0
 
March 5, 2021, 9 p.m. 15.3 ppb (15) 4.6 ppb (5) N/A 11.0 ppb (11) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 12.2 μg/m3 (52) 52.0
 
March 5, 2021, 8 p.m. 14.2 ppb (14) 4.5 ppb (5) N/A 10.0 ppb (10) N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A 12.1 μg/m3 (51) 51.0
 
March 5, 2021, 7 p.m. 13.9 ppb (14) 4.9 ppb (5) N/A 9.0 ppb (9) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 10.9 μg/m3 (46) 46.0
 
March 5, 2021, 6 p.m. 15.7 ppb (15) 5.9 ppb (6) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.4 ppb (5) N/A 11.3 μg/m3 (48) 48.0
 
March 5, 2021, 5 p.m. 15.6 ppb (15) 5.9 ppb (6) N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) 0.4 ppb (5) N/A 10.6 μg/m3 (45) 45.0
 
March 5, 2021, 4 p.m. 23.0 ppb (22) 9.6 ppb (10) N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) 0.4 ppb (5) N/A 11.5 μg/m3 (48) 48.0
 
March 5, 2021, 3 p.m. 33.2 ppb (32) 15.9 ppb (15) N/A 17.0 ppb (17) N/A N/A 15.0 ppb (14) 0.5 ppb (6) N/A 12.7 μg/m3 (53) 53.0
 
March 5, 2021, 2 p.m. 37.3 ppb (36) 13.5 ppb (13) N/A 24.0 ppb (23) N/A N/A 5.0 ppb (5) 0.5 ppb (6) N/A 10.8 μg/m3 (46) 46.0
 
March 5, 2021, 1 p.m. 29.0 ppb (28) 5.0 ppb (5) N/A 24.0 ppb (23) N/A N/A 6.0 ppb (6) 0.4 ppb (5) N/A 7.6 μg/m3 (32) 32.0
 
March 5, 2021, noon 19.4 ppb (19) 1.5 ppb (2) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (10) 0.3 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
March 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.3 ppb (4) N/A 5.8 μg/m3 (25) 25.0
 
March 5, 2021, 10 a.m. 14.2 ppb (14) 0.9 ppb (1) N/A 13.0 ppb (13) N/A N/A 14.0 ppb (13) 0.3 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
March 5, 2021, 9 a.m. 13.6 ppb (13) 1.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 15.0 ppb (14) 0.3 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
March 5, 2021, 8 a.m. 13.5 ppb (13) 1.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 15.0 ppb (14) 0.4 ppb (5) N/A 6.5 μg/m3 (28) 28.0
 
March 5, 2021, 7 a.m. 14.6 ppb (14) 1.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) 0.3 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
March 5, 2021, 6 a.m. 16.8 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (16) N/A N/A 15.0 ppb (14) 0.4 ppb (5) N/A 6.6 μg/m3 (28) 28.0
 
March 5, 2021, 5 a.m. 15.2 ppb (15) 1.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 17.0 ppb (16) 0.4 ppb (5) N/A 7.5 μg/m3 (32) 32.0
 
March 5, 2021, 4 a.m. 17.5 ppb (17) 1.2 ppb (2) N/A 16.0 ppb (16) N/A N/A 18.0 ppb (17) 0.4 ppb (5) N/A 6.9 μg/m3 (29) 29.0
 
March 5, 2021, 3 a.m. 14.4 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) 0.4 ppb (5) N/A 6.3 μg/m3 (27) 27.0
 
March 5, 2021, 2 a.m. 15.7 ppb (15) 1.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 28.0 ppb (26) 0.4 ppb (5) N/A 6.2 μg/m3 (26) 26.0
 
March 5, 2021, 1 a.m. 8.3 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 39.0 ppb (37) 0.3 ppb (4) N/A 4.5 μg/m3 (19) 37.0
 
March 5, 2021, midnight 6.9 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (42) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 42.0
 
March 4, 2021, 11 p.m. 5.4 ppb (6) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 44.0
 
March 4, 2021, 10 p.m. 5.9 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) 0.3 ppb (4) N/A 4.3 μg/m3 (18) 42.0
 
March 4, 2021, 9 p.m. 4.6 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) 0.3 ppb (4) N/A 3.5 μg/m3 (15) 43.0
 
March 4, 2021, 8 p.m. 5.1 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 3.2 μg/m3 (14) 41.0
 
March 4, 2021, 7 p.m. 5.8 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 2.7 μg/m3 (12) 38.0
 
March 4, 2021, 6 p.m. 6.8 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A 1.9 μg/m3 (8) 38.0
 
March 4, 2021, 5 p.m. 6.1 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 1.2 μg/m3 (5) 36.0
 
March 4, 2021, 4 p.m. 8.8 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 1.1 μg/m3 (5) 32.0
 
March 4, 2021, 3 p.m. N/A 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) 0.3 ppb (4) N/A 1.2 μg/m3 (5) 30.0
 
March 4, 2021, 2 p.m. N/A 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.3 ppb (4) N/A 1.4 μg/m3 (6) 29.0
 
March 4, 2021, 1 p.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 2.3 μg/m3 (10) 32.0
 
March 4, 2021, noon N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 2.2 μg/m3 (10) 39.0
 
March 4, 2021, 11 a.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 2.9 μg/m3 (13) 35.0
 
March 4, 2021, 10 a.m. N/A 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 3.1 μg/m3 (13) 36.0
 
March 4, 2021, 9 a.m. N/A 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 3.4 μg/m3 (15) 39.0
 
March 4, 2021, 8 a.m. N/A 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.3 ppb (4) N/A 3.3 μg/m3 (14) 30.0
 
March 4, 2021, 7 a.m. N/A 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 1.9 μg/m3 (8) 36.0
 
March 4, 2021, 6 a.m. N/A 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 2.2 μg/m3 (10) 31.0
 
March 4, 2021, 5 a.m. N/A 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 2.1 μg/m3 (9) 34.0
 
March 4, 2021, 4 a.m. N/A 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 2.9 μg/m3 (13) 32.0
 
March 4, 2021, 3 a.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.2 ppb (3) N/A 1.4 μg/m3 (6) 44.0
 
March 4, 2021, 2 a.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.2 ppb (3) N/A 1.5 μg/m3 (7) 45.0
 
March 4, 2021, 1 a.m. N/A 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.2 ppb (3) N/A 1.6 μg/m3 (7) 47.0
 
March 4, 2021, midnight N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.2 ppb (3) N/A 1.7 μg/m3 (8) 46.0
 
March 3, 2021, 11 p.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.2 ppb (3) N/A 1.6 μg/m3 (7) 46.0
 
March 3, 2021, 10 p.m. N/A 3.5 ppb (4) N/A 8.0 ppb (8) N/A N/A 43.0 ppb (40) 0.3 ppb (4) N/A 3.8 μg/m3 (16) 40.0
 
March 3, 2021, 9 p.m. N/A 6.3 ppb (6) N/A 12.0 ppb (12) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 7.6 μg/m3 (32) 36.0
 
March 3, 2021, 8 p.m. N/A 7.8 ppb (8) N/A 13.0 ppb (13) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 7.9 μg/m3 (33) 34.0
 
March 3, 2021, 7 p.m. N/A 7.0 ppb (7) N/A 11.0 ppb (11) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 6.5 μg/m3 (28) 33.0
 
March 3, 2021, 6 p.m. N/A 6.6 ppb (7) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 6.3 μg/m3 (27) 31.0
 
March 3, 2021, 5 p.m. N/A 6.2 ppb (6) N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) 0.3 ppb (4) N/A 5.5 μg/m3 (23) 29.0
 
March 3, 2021, 4 p.m. N/A 12.1 ppb (12) N/A 16.0 ppb (16) N/A N/A 25.0 ppb (24) 0.4 ppb (5) N/A 7.8 μg/m3 (33) 33.0
 
March 3, 2021, 3 p.m. N/A 18.6 ppb (18) N/A 22.0 ppb (21) N/A N/A 16.0 ppb (15) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 3, 2021, 2 p.m. N/A 12.6 ppb (12) N/A 26.0 ppb (25) N/A N/A 6.0 ppb (6) 0.4 ppb (5) N/A 5.3 μg/m3 (23) 25.0
 
March 3, 2021, 1 p.m. N/A 6.1 ppb (6) N/A 28.0 ppb (27) N/A N/A 4.0 ppb (4) 0.4 ppb (5) N/A 3.4 μg/m3 (15) 27.0
 
March 3, 2021, noon N/A 2.9 ppb (3) N/A 24.0 ppb (23) N/A N/A 8.0 ppb (8) 0.3 ppb (4) N/A 3.0 μg/m3 (13) 23.0
 
March 3, 2021, 11 a.m. N/A 1.1 ppb (2) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) 0.3 ppb (4) N/A 3.6 μg/m3 (16) 17.0
 
March 3, 2021, 10 a.m. N/A 1.0 ppb (1) N/A 15.0 ppb (15) N/A N/A 14.0 ppb (13) 0.3 ppb (4) N/A 3.5 μg/m3 (15) 15.0
 
March 3, 2021, 9 a.m. N/A 1.0 ppb (1) N/A 15.0 ppb (15) N/A N/A 15.0 ppb (14) 0.3 ppb (4) N/A 2.3 μg/m3 (10) 15.0
 
March 3, 2021, 8 a.m. N/A 0.9 ppb (1) N/A 13.0 ppb (13) N/A N/A 19.0 ppb (18) 0.4 ppb (5) N/A 3.2 μg/m3 (14) 18.0
 
March 3, 2021, 7 a.m. N/A 1.0 ppb (1) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) 0.3 ppb (4) N/A 4.2 μg/m3 (18) 18.0
 
March 3, 2021, 6 a.m. N/A 1.0 ppb (1) N/A 15.0 ppb (15) N/A N/A 17.0 ppb (16) 0.3 ppb (4) N/A 2.5 μg/m3 (11) 16.0
 
March 3, 2021, 5 a.m. N/A 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 1.3 μg/m3 (6) 27.0
 
March 3, 2021, 4 a.m. N/A 1.7 ppb (2) N/A 17.0 ppb (17) N/A N/A 18.0 ppb (17) 0.4 ppb (5) N/A 6.3 μg/m3 (27) 27.0
 
March 3, 2021, 3 a.m. N/A 3.6 ppb (4) N/A 30.0 ppb (29) N/A N/A 7.0 ppb (7) 0.5 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 2 a.m. N/A 2.2 ppb (3) N/A 24.0 ppb (23) N/A N/A 14.0 ppb (13) 0.4 ppb (5) N/A 2.2 μg/m3 (10) 23.0
 
March 3, 2021, 1 a.m. N/A 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 1.3 μg/m3 (6) 34.0
 
March 3, 2021, midnight N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.2 ppb (3) N/A 1.1 μg/m3 (5) 39.0
 
March 2, 2021, 11 p.m. N/A 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.2 ppb (3) N/A 0.8 μg/m3 (4) 40.0
 
March 2, 2021, 10 p.m. N/A 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) 0.2 ppb (3) N/A 1.9 μg/m3 (8) 39.0
 
March 2, 2021, 9 p.m. N/A 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 2.7 μg/m3 (12) 39.0
 
March 2, 2021, 8 p.m. N/A 4.5 ppb (5) N/A 8.0 ppb (8) N/A N/A 39.0 ppb (37) 0.3 ppb (4) N/A 4.4 μg/m3 (19) 37.0
 
March 2, 2021, 7 p.m. N/A 7.6 ppb (8) N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 6.7 μg/m3 (28) 31.0
 
March 2, 2021, 6 p.m. N/A 7.7 ppb (8) N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 31.0
 
March 2, 2021, 5 p.m. N/A 3.9 ppb (4) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 3.6 μg/m3 (16) 33.0
 
March 2, 2021, 4 p.m. 14.8 ppb (14) 5.5 ppb (6) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 4.2 μg/m3 (18) 28.0
 
March 2, 2021, 3 p.m. 40.1 ppb (38) 19.8 ppb (19) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (16) 0.5 ppb (6) N/A 6.1 μg/m3 (26) 38.0
 
March 2, 2021, 2 p.m. 52.6 ppb (50) 20.5 ppb (20) N/A 32.0 ppb (31) N/A N/A 5.0 ppb (5) 0.9 ppb (11) N/A 6.6 μg/m3 (28) 50.0
 
March 2, 2021, 1 p.m. 35.5 ppb (34) 5.6 ppb (6) N/A 30.0 ppb (29) N/A N/A 5.0 ppb (5) 0.5 ppb (6) N/A 6.4 μg/m3 (27) 34.0
 
March 2, 2021, noon 24.7 ppb (24) 1.7 ppb (2) N/A 23.0 ppb (22) N/A N/A 12.0 ppb (12) 0.4 ppb (5) N/A 4.5 μg/m3 (19) 24.0
 
March 2, 2021, 11 a.m. 22.4 ppb (22) 1.7 ppb (2) N/A 21.0 ppb (20) N/A N/A 11.0 ppb (11) 0.4 ppb (5) N/A 3.6 μg/m3 (16) 22.0
 
March 2, 2021, 10 a.m. 22.4 ppb (22) 1.6 ppb (2) N/A 21.0 ppb (20) N/A N/A 11.0 ppb (11) 0.4 ppb (5) N/A 3.7 μg/m3 (16) 22.0
 
March 2, 2021, 9 a.m. 26.2 ppb (25) 2.0 ppb (2) N/A 24.0 ppb (23) N/A N/A 9.0 ppb (9) 0.4 ppb (5) N/A 4.3 μg/m3 (18) 25.0
 
March 2, 2021, 8 a.m. 21.1 ppb (20) 1.4 ppb (2) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (12) 0.4 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
March 2, 2021, 7 a.m. 21.8 ppb (21) 1.3 ppb (2) N/A 21.0 ppb (20) N/A N/A 14.0 ppb (13) 0.4 ppb (5) N/A 8.3 μg/m3 (35) 35.0
 
March 2, 2021, 6 a.m. 33.7 ppb (32) 2.4 ppb (3) N/A 31.0 ppb (30) N/A N/A 7.0 ppb (7) 0.5 ppb (6) N/A 7.9 μg/m3 (33) 33.0
 
March 2, 2021, 5 a.m. 29.2 ppb (28) 1.9 ppb (2) N/A 27.0 ppb (26) N/A N/A 13.0 ppb (13) 0.4 ppb (5) N/A 4.6 μg/m3 (20) 28.0
 
March 2, 2021, 4 a.m. 33.6 ppb (32) 3.6 ppb (4) N/A 30.0 ppb (29) N/A N/A 5.0 ppb (5) 0.5 ppb (6) N/A 4.8 μg/m3 (20) 32.0
 
March 2, 2021, 3 a.m. 26.5 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (24) N/A N/A 10.0 ppb (10) 0.4 ppb (5) N/A 7.2 μg/m3 (31) 31.0
 
March 2, 2021, 2 a.m. 26.9 ppb (26) 1.0 ppb (1) N/A 26.0 ppb (25) N/A N/A 16.0 ppb (15) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
March 2, 2021, 1 a.m. 14.3 ppb (14) 0.6 ppb (1) N/A 14.0 ppb (14) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 3.5 μg/m3 (15) 31.0
 
March 2, 2021, midnight 7.7 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 2.1 μg/m3 (9) 39.0
 
March 1, 2021, 11 p.m. 7.9 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (40) 0.3 ppb (4) N/A 2.4 μg/m3 (10) 40.0
 
March 1, 2021, 10 p.m. 10.5 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 4.5 μg/m3 (19) 39.0
 
March 1, 2021, 9 p.m. 10.0 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 5.6 μg/m3 (24) 39.0
 
March 1, 2021, 8 p.m. 14.1 ppb (14) 5.3 ppb (5) N/A 9.0 ppb (9) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 7.5 μg/m3 (32) 36.0
 
March 1, 2021, 7 p.m. 16.2 ppb (16) 6.4 ppb (7) N/A 10.0 ppb (10) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 7.9 μg/m3 (33) 34.0
 
March 1, 2021, 6 p.m. 16.7 ppb (16) 6.8 ppb (7) N/A 10.0 ppb (10) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 7.8 μg/m3 (33) 34.0
 
March 1, 2021, 5 p.m. 19.2 ppb (19) 7.8 ppb (8) N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 7.3 μg/m3 (31) 32.0
 
March 1, 2021, 4 p.m. 15.1 ppb (15) 5.5 ppb (6) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 6.7 μg/m3 (28) 32.0
 
March 1, 2021, 3 p.m. 17.5 ppb (17) 5.1 ppb (5) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) 0.3 ppb (4) N/A 7.5 μg/m3 (32) 32.0
 
March 1, 2021, 2 p.m. 43.0 ppb (41) 11.8 ppb (12) N/A 31.0 ppb (30) N/A N/A 9.0 ppb (9) 0.5 ppb (6) N/A 5.2 μg/m3 (22) 41.0
 
March 1, 2021, 1 p.m. 27.0 ppb (26) 2.1 ppb (2) N/A 25.0 ppb (24) N/A N/A 9.0 ppb (9) 0.3 ppb (4) N/A 5.1 μg/m3 (22) 26.0
 
March 1, 2021, noon 28.6 ppb (27) 1.7 ppb (2) N/A 27.0 ppb (26) N/A N/A 9.0 ppb (9) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 27.0
 
March 1, 2021, 11 a.m. 23.5 ppb (23) 1.4 ppb (2) N/A 22.0 ppb (21) N/A N/A 14.0 ppb (13) N/A N/A 4.6 μg/m3 (20) 23.0
 
March 1, 2021, 10 a.m. 21.3 ppb (21) 1.2 ppb (2) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (14) 0.3 ppb (4) N/A 4.1 μg/m3 (18) 21.0
 
March 1, 2021, 9 a.m. 21.5 ppb (21) 1.4 ppb (2) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (14) 0.3 ppb (4) N/A 3.4 μg/m3 (15) 21.0
 
March 1, 2021, 8 a.m. 16.2 ppb (16) 1.0 ppb (1) N/A 15.0 ppb (15) N/A N/A 22.0 ppb (21) 0.3 ppb (4) N/A 4.0 μg/m3 (17) 21.0
 
March 1, 2021, 7 a.m. 21.1 ppb (20) 1.2 ppb (2) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (13) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
March 1, 2021, 6 a.m. 20.3 ppb (20) 1.2 ppb (2) N/A 19.0 ppb (18) N/A N/A 19.0 ppb (18) 0.4 ppb (5) N/A 5.4 μg/m3 (23) 23.0
 
March 1, 2021, 5 a.m. 20.3 ppb (20) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 20.0 ppb (19) 0.4 ppb (5) N/A 5.6 μg/m3 (24) 24.0
 
March 1, 2021, 4 a.m. 20.6 ppb (20) 0.8 ppb (1) N/A 20.0 ppb (19) N/A N/A 21.0 ppb (20) 0.4 ppb (5) N/A 6.4 μg/m3 (27) 27.0
 
March 1, 2021, 3 a.m. 14.7 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (14) N/A N/A 28.0 ppb (26) 0.4 ppb (5) N/A 5.1 μg/m3 (22) 26.0
 
March 1, 2021, 2 a.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) 0.3 ppb (4) N/A 5.4 μg/m3 (23) 30.0
 
March 1, 2021, 1 a.m. 6.6 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 4.0 μg/m3 (17) 38.0
 
March 1, 2021, midnight 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 3.8 μg/m3 (16) 41.0
 
Feb. 28, 2021, 11 p.m. 4.9 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 3.9 μg/m3 (17) 41.0
 
Feb. 28, 2021, 10 p.m. 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 3.8 μg/m3 (16) 41.0
 
Feb. 28, 2021, 9 p.m. 4.8 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 4.4 μg/m3 (19) 39.0
 
Feb. 28, 2021, 8 p.m. 4.7 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 4.5 μg/m3 (19) 38.0
 
Feb. 28, 2021, 7 p.m. 4.8 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.3 ppb (4) N/A 4.2 μg/m3 (18) 37.0
 
Feb. 28, 2021, 6 p.m. 6.7 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 4.2 μg/m3 (18) 35.0
 
Feb. 28, 2021, 5 p.m. 8.5 ppb (9) 2.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 33.0
 
Feb. 28, 2021, 4 p.m. 9.6 ppb (10) 3.2 ppb (4) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 31.0
 
Feb. 28, 2021, 3 p.m. 14.1 ppb (14) 3.6 ppb (4) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 5.1 μg/m3 (22) 27.0
 
Feb. 28, 2021, 2 p.m. 23.7 ppb (23) 3.2 ppb (4) N/A 21.0 ppb (20) N/A N/A 17.0 ppb (16) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 23.0
 
Feb. 28, 2021, 1 p.m. 22.9 ppb (22) 1.1 ppb (2) N/A 22.0 ppb (21) N/A N/A 14.0 ppb (13) 0.3 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
Feb. 28, 2021, noon 14.2 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) 0.3 ppb (4) N/A 2.9 μg/m3 (13) 22.0
 
Feb. 28, 2021, 11 a.m. 8.5 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 28.0 ppb (26) 0.3 ppb (4) N/A 2.3 μg/m3 (10) 26.0
 
Feb. 28, 2021, 10 a.m. 9.7 ppb (10) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 2.4 μg/m3 (10) 27.0
 
Feb. 28, 2021, 9 a.m. 8.8 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.3 ppb (4) N/A 3.3 μg/m3 (14) 29.0
 
Feb. 28, 2021, 8 a.m. 9.4 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.3 ppb (4) N/A 4.6 μg/m3 (20) 25.0
 
Feb. 28, 2021, 7 a.m. 7.7 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 31.0 ppb (29) 0.3 ppb (4) N/A 3.9 μg/m3 (17) 29.0
 
Feb. 28, 2021, 6 a.m. 8.0 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 2.7 μg/m3 (12) 31.0
 
Feb. 28, 2021, 5 a.m. 9.7 ppb (10) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) 0.4 ppb (5) N/A 2.8 μg/m3 (12) 27.0
 
Feb. 28, 2021, 4 a.m. 13.0 ppb (13) 0.8 ppb (1) N/A 12.0 ppb (12) N/A N/A 26.0 ppb (25) 0.4 ppb (5) N/A 5.0 μg/m3 (21) 25.0
 
Feb. 28, 2021, 3 a.m. 15.6 ppb (15) 1.5 ppb (2) N/A 14.0 ppb (14) N/A N/A 25.0 ppb (24) 0.4 ppb (5) N/A 8.2 μg/m3 (35) 35.0
 
Feb. 28, 2021, 2 a.m. 10.3 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A 29.0 ppb (27) 0.4 ppb (5) N/A 39.1 μg/m3 (110) 110.0
 
Feb. 28, 2021, 1 a.m. 7.0 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 33.0
 
Feb. 28, 2021, midnight 4.2 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A 2.7 μg/m3 (12) 38.0
 
Feb. 27, 2021, 11 p.m. 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.3 ppb (4) N/A 1.8 μg/m3 (8) 40.0
 
Feb. 27, 2021, 10 p.m. 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 1.8 μg/m3 (8) 41.0
 
Feb. 27, 2021, 9 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.2 ppb (3) N/A 1.5 μg/m3 (7) 40.0
 
Feb. 27, 2021, 8 p.m. 2.5 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.2 ppb (3) N/A 1.6 μg/m3 (7) 39.0
 
Feb. 27, 2021, 7 p.m. 3.2 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.3 ppb (4) N/A 2.0 μg/m3 (9) 39.0
 
Feb. 27, 2021, 6 p.m. 3.4 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 1.9 μg/m3 (8) 38.0
 
Feb. 27, 2021, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 1.6 μg/m3 (7) 38.0
 
Feb. 27, 2021, 4 p.m. 4.1 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 1.9 μg/m3 (8) 36.0
 
Feb. 27, 2021, 3 p.m. 4.6 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 36.0
 
Feb. 27, 2021, 2 p.m. 8.9 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.3 ppb (4) N/A 2.9 μg/m3 (13) 30.0
 
Feb. 27, 2021, 1 p.m. 5.1 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 1.4 μg/m3 (6) 35.0
 
Feb. 27, 2021, noon 10.7 ppb (11) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 1.4 μg/m3 (6) 28.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 1.2 μg/m3 (5) 34.0