ID: 1067

AQSQID: 490495010

Site Name: Spanish Fork

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

Updated: Feb. 26, 2021, 8:32 a.m.

Location: Spanish Fork (W 2050 N St), UT

Reporting: True, Located: True

Current AQI: 34.0

Spanish Fork (W 2050 N St) UT, US: 40.136398, -111.660202

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 26, 2021, 7 a.m. 7.5 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) N/A N/A 2.2 μg/m3 (10) 34.0
 
Feb. 26, 2021, 6 a.m. 10.4 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) N/A N/A 2.6 μg/m3 (11) 31.0
 
Feb. 26, 2021, 5 a.m. 8.2 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) N/A N/A 2.2 μg/m3 (10) 34.0
 
Feb. 26, 2021, 4 a.m. 19.0 ppb (18) 1.3 ppb (2) N/A 18.0 ppb (17) N/A N/A 26.0 ppb (25) N/A N/A 4.4 μg/m3 (19) 25.0
 
Feb. 26, 2021, 3 a.m. 16.2 ppb (16) 1.2 ppb (2) N/A 15.0 ppb (15) N/A N/A 30.0 ppb (28) N/A N/A 3.6 μg/m3 (16) 28.0
 
Feb. 26, 2021, 2 a.m. 16.8 ppb (16) 2.3 ppb (3) N/A 15.0 ppb (15) N/A N/A 33.0 ppb (31) N/A N/A 3.5 μg/m3 (15) 31.0
 
Feb. 26, 2021, 1 a.m. 18.5 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (16) N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
Feb. 26, 2021, midnight 10.6 ppb (10) 1.5 ppb (2) N/A 10.0 ppb (10) N/A N/A 41.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
Feb. 25, 2021, 11 p.m. 3.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A N/A 1.7 μg/m3 (8) 44.0
 
Feb. 25, 2021, 10 p.m. 2.6 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A N/A 1.2 μg/m3 (5) 45.0
 
Feb. 25, 2021, 9 p.m. 2.1 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A N/A 1.3 μg/m3 (6) 45.0
 
Feb. 25, 2021, 8 p.m. 3.9 ppb (4) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A N/A 2.1 μg/m3 (9) 42.0
 
Feb. 25, 2021, 7 p.m. 6.4 ppb (7) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) N/A N/A 3.3 μg/m3 (14) 39.0
 
Feb. 25, 2021, 6 p.m. 8.2 ppb (8) 3.6 ppb (4) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (38) N/A N/A 3.9 μg/m3 (17) 38.0
 
Feb. 25, 2021, 5 p.m. 9.1 ppb (9) 4.2 ppb (4) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
Feb. 25, 2021, 4 p.m. 14.5 ppb (14) 6.7 ppb (7) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) N/A N/A 4.2 μg/m3 (18) 34.0
 
Feb. 25, 2021, 3 p.m. 21.0 ppb (20) 8.9 ppb (9) N/A 13.0 ppb (13) N/A N/A 31.0 ppb (29) N/A N/A 5.6 μg/m3 (24) 29.0
 
Feb. 25, 2021, 2 p.m. 23.2 ppb (22) 6.7 ppb (7) N/A 17.0 ppb (17) N/A N/A 27.0 ppb (25) N/A N/A 4.9 μg/m3 (21) 25.0
 
Feb. 25, 2021, 1 p.m. 16.7 ppb (16) 3.3 ppb (4) N/A 14.0 ppb (14) N/A N/A 31.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
Feb. 25, 2021, noon 12.6 ppb (12) 2.2 ppb (3) N/A 11.0 ppb (11) N/A N/A 32.0 ppb (30) N/A N/A 2.8 μg/m3 (12) 30.0
 
Feb. 25, 2021, 11 a.m. 10.3 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
Feb. 25, 2021, 10 a.m. 9.3 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 2.9 μg/m3 (13) 31.0
 
Feb. 25, 2021, 9 a.m. 13.0 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) N/A N/A 3.8 μg/m3 (16) 24.0
 
Feb. 25, 2021, 8 a.m. 19.4 ppb (19) 3.7 ppb (4) N/A 16.0 ppb (16) N/A N/A 21.0 ppb (20) N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 25, 2021, 7 a.m. 15.9 ppb (15) 1.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 22.0 ppb (21) N/A N/A 4.2 μg/m3 (18) 21.0
 
Feb. 25, 2021, 6 a.m. 14.6 ppb (14) 1.4 ppb (2) N/A 14.0 ppb (14) N/A N/A 26.0 ppb (25) N/A N/A 5.7 μg/m3 (24) 25.0
 
Feb. 25, 2021, 5 a.m. 19.2 ppb (19) 3.8 ppb (4) N/A 16.0 ppb (16) N/A N/A 26.0 ppb (25) N/A N/A 5.1 μg/m3 (22) 25.0
 
Feb. 25, 2021, 4 a.m. 6.5 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) N/A N/A 5.4 μg/m3 (23) 33.0
 
Feb. 25, 2021, 3 a.m. 4.7 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
Feb. 25, 2021, 2 a.m. 3.5 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) N/A N/A 1.6 μg/m3 (7) 39.0
 
Feb. 25, 2021, 1 a.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 1.4 μg/m3 (6) 41.0
 
Feb. 25, 2021, midnight 3.0 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 1.6 μg/m3 (7) 43.0
 
Feb. 24, 2021, 11 p.m. 3.5 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 1.8 μg/m3 (8) 43.0
 
Feb. 24, 2021, 10 p.m. 4.2 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 2.5 μg/m3 (11) 43.0
 
Feb. 24, 2021, 9 p.m. 6.7 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) N/A N/A 3.3 μg/m3 (14) 40.0
 
Feb. 24, 2021, 8 p.m. 9.1 ppb (9) 3.3 ppb (4) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
Feb. 24, 2021, 7 p.m. 13.1 ppb (13) 4.6 ppb (5) N/A 9.0 ppb (9) N/A N/A 38.0 ppb (36) N/A N/A 3.9 μg/m3 (17) 36.0
 
Feb. 24, 2021, 6 p.m. 14.8 ppb (14) 5.4 ppb (6) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) N/A N/A 4.6 μg/m3 (20) 32.0
 
Feb. 24, 2021, 5 p.m. 14.7 ppb (14) 6.4 ppb (7) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 4.4 μg/m3 (19) 31.0
 
Feb. 24, 2021, 4 p.m. 22.5 ppb (22) 8.7 ppb (9) N/A 14.0 ppb (14) N/A N/A 26.0 ppb (25) N/A N/A 5.3 μg/m3 (23) 25.0
 
Feb. 24, 2021, 3 p.m. 36.5 ppb (35) 13.3 ppb (13) N/A 24.0 ppb (23) N/A N/A 18.0 ppb (17) N/A N/A 8.1 μg/m3 (34) 35.0
 
Feb. 24, 2021, 2 p.m. 30.5 ppb (29) 10.8 ppb (11) N/A 20.0 ppb (19) N/A N/A 20.0 ppb (19) N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 24, 2021, 1 p.m. 20.3 ppb (20) 5.9 ppb (6) N/A 15.0 ppb (15) N/A N/A 26.0 ppb (25) N/A N/A 4.4 μg/m3 (19) 25.0
 
Feb. 24, 2021, noon 13.9 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) N/A N/A 3.2 μg/m3 (14) 26.0
 
Feb. 24, 2021, 11 a.m. 9.5 ppb (9) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 3.3 μg/m3 (14) 31.0
 
Feb. 24, 2021, 10 a.m. 9.9 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) N/A N/A 3.4 μg/m3 (15) 30.0
 
Feb. 24, 2021, 9 a.m. 12.1 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) N/A N/A 3.1 μg/m3 (13) 26.0
 
Feb. 24, 2021, 8 a.m. 7.2 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A N/A 2.4 μg/m3 (10) 30.0
 
Feb. 24, 2021, 7 a.m. 10.8 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) N/A N/A 2.7 μg/m3 (12) 27.0
 
Feb. 24, 2021, 6 a.m. 28.5 ppb (27) 3.2 ppb (4) N/A 26.0 ppb (25) N/A N/A 12.0 ppb (12) N/A N/A 5.3 μg/m3 (23) 27.0
 
Feb. 24, 2021, 5 a.m. 22.7 ppb (22) 2.1 ppb (2) N/A 21.0 ppb (20) N/A N/A 14.0 ppb (13) N/A N/A 6.9 μg/m3 (29) 29.0
 
Feb. 24, 2021, 4 a.m. 9.7 ppb (10) 1.2 ppb (2) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) N/A N/A 3.2 μg/m3 (14) 28.0
 
Feb. 24, 2021, 3 a.m. 19.2 ppb (19) 1.7 ppb (2) N/A 18.0 ppb (17) N/A N/A 23.0 ppb (22) N/A N/A 5.8 μg/m3 (25) 25.0
 
Feb. 24, 2021, 2 a.m. 17.6 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A 23.0 ppb (22) N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 24, 2021, 1 a.m. 5.1 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A N/A 2.2 μg/m3 (10) 36.0
 
Feb. 24, 2021, midnight 5.0 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) N/A N/A 1.7 μg/m3 (8) 42.0
 
Feb. 23, 2021, 11 p.m. 3.3 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) N/A N/A 1.8 μg/m3 (8) 45.0
 
Feb. 23, 2021, 10 p.m. 3.3 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) N/A N/A 2.3 μg/m3 (10) 46.0
 
Feb. 23, 2021, 9 p.m. 2.9 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) N/A N/A 2.0 μg/m3 (9) 44.0
 
Feb. 23, 2021, 8 p.m. 4.3 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0
 
Feb. 23, 2021, 7 p.m. 3.0 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 2.4 μg/m3 (10) 38.0
 
Feb. 23, 2021, 6 p.m. 5.9 ppb (6) 2.5 ppb (3) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A N/A 2.9 μg/m3 (13) 36.0
 
Feb. 23, 2021, 5 p.m. 10.5 ppb (10) 4.5 ppb (5) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A N/A 3.9 μg/m3 (17) 30.0
 
Feb. 23, 2021, 4 p.m. 18.8 ppb (18) 10.4 ppb (10) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) N/A N/A 4.3 μg/m3 (18) 28.0
 
Feb. 23, 2021, 3 p.m. 27.3 ppb (26) 12.5 ppb (12) N/A 15.0 ppb (15) N/A N/A 25.0 ppb (24) N/A N/A 6.9 μg/m3 (29) 29.0
 
Feb. 23, 2021, 2 p.m. 22.4 ppb (22) 7.7 ppb (8) N/A 15.0 ppb (15) N/A N/A 24.0 ppb (23) N/A N/A 4.9 μg/m3 (21) 23.0
 
Feb. 23, 2021, 1 p.m. 20.8 ppb (20) 5.2 ppb (5) N/A 16.0 ppb (16) N/A N/A 24.0 ppb (23) N/A N/A 2.8 μg/m3 (12) 23.0
 
Feb. 23, 2021, noon 14.8 ppb (14) 4.2 ppb (4) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) N/A N/A 2.3 μg/m3 (10) 27.0
 
Feb. 23, 2021, 11 a.m. 8.4 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A N/A 1.7 μg/m3 (8) 30.0
 
Feb. 23, 2021, 10 a.m. 8.9 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) N/A N/A 3.1 μg/m3 (13) 30.0
 
Feb. 23, 2021, 9 a.m. 6.6 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
Feb. 23, 2021, 8 a.m. 8.4 ppb (8) 2.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A N/A 1.8 μg/m3 (8) 31.0
 
Feb. 23, 2021, 7 a.m. 5.6 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) N/A N/A 2.1 μg/m3 (9) 34.0
 
Feb. 23, 2021, 6 a.m. 4.4 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A N/A 2.5 μg/m3 (11) 36.0
 
Feb. 23, 2021, 5 a.m. 9.9 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) N/A N/A 2.8 μg/m3 (12) 30.0
 
Feb. 23, 2021, 4 a.m. 9.1 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 3.1 μg/m3 (13) 31.0
 
Feb. 23, 2021, 3 a.m. 13.0 ppb (13) 3.2 ppb (4) N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) N/A N/A 4.9 μg/m3 (21) 29.0
 
Feb. 23, 2021, 2 a.m. 22.1 ppb (21) 3.8 ppb (4) N/A 19.0 ppb (18) N/A N/A 26.0 ppb (25) N/A N/A 7.4 μg/m3 (31) 31.0
 
Feb. 23, 2021, 1 a.m. 8.1 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) N/A N/A 5.1 μg/m3 (22) 34.0
 
Feb. 23, 2021, midnight 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A N/A 3.6 μg/m3 (16) 40.0
 
Feb. 22, 2021, 11 p.m. 4.9 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A N/A 5.1 μg/m3 (22) 41.0
 
Feb. 22, 2021, 10 p.m. 6.9 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A N/A 6.6 μg/m3 (28) 41.0
 
Feb. 22, 2021, 9 p.m. 7.9 ppb (8) 3.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) N/A N/A 7.8 μg/m3 (33) 40.0
 
Feb. 22, 2021, 8 p.m. 5.0 ppb (5) 2.2 ppb (3) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A N/A 6.4 μg/m3 (27) 40.0
 
Feb. 22, 2021, 7 p.m. 7.8 ppb (8) 3.9 ppb (4) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A N/A 5.7 μg/m3 (24) 38.0
 
Feb. 22, 2021, 6 p.m. 12.0 ppb (12) 6.5 ppb (7) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
Feb. 22, 2021, 5 p.m. 13.5 ppb (13) 7.3 ppb (7) N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) N/A N/A 5.9 μg/m3 (25) 32.0
 
Feb. 22, 2021, 4 p.m. 20.9 ppb (20) 11.2 ppb (11) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) N/A N/A 6.4 μg/m3 (27) 28.0
 
Feb. 22, 2021, 3 p.m. 31.5 ppb (30) 16.3 ppb (16) N/A 16.0 ppb (16) N/A N/A 23.0 ppb (22) N/A N/A 7.9 μg/m3 (33) 33.0
 
Feb. 22, 2021, 2 p.m. 19.6 ppb (19) 6.8 ppb (7) N/A 13.0 ppb (13) N/A N/A 25.0 ppb (24) N/A N/A 6.1 μg/m3 (26) 26.0
 
Feb. 22, 2021, 1 p.m. 16.2 ppb (16) 3.1 ppb (3) N/A 14.0 ppb (14) N/A N/A 26.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
Feb. 22, 2021, noon 7.7 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 31.0 ppb (29) N/A N/A 3.5 μg/m3 (15) 29.0
 
Feb. 22, 2021, 11 a.m. 9.8 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) N/A N/A 3.7 μg/m3 (16) 25.0
 
Feb. 22, 2021, 10 a.m. 6.3 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A N/A 3.5 μg/m3 (15) 29.0
 
Feb. 22, 2021, 9 a.m. 6.5 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
Feb. 22, 2021, 8 a.m. 5.6 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) N/A N/A 3.4 μg/m3 (15) 29.0
 
Feb. 22, 2021, 7 a.m. 9.0 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) N/A N/A 3.6 μg/m3 (16) 26.0
 
Feb. 22, 2021, 6 a.m. 14.4 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 22, 2021, 5 a.m. 17.6 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A 15.0 ppb (14) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 22, 2021, 4 a.m. 19.5 ppb (19) 2.3 ppb (3) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) N/A N/A 10.6 μg/m3 (45) 45.0
 
Feb. 22, 2021, 3 a.m. 15.0 ppb (15) 1.0 ppb (1) N/A 14.0 ppb (14) N/A N/A 18.0 ppb (17) N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 22, 2021, 2 a.m. 9.6 ppb (10) 0.6 ppb (1) N/A 9.0 ppb (9) N/A N/A 23.0 ppb (22) N/A N/A 5.6 μg/m3 (24) 24.0
 
Feb. 22, 2021, 1 a.m. 2.9 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A N/A 3.8 μg/m3 (16) 34.0
 
Feb. 22, 2021, midnight 1.6 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 2.7 μg/m3 (12) 37.0
 
Feb. 21, 2021, 11 p.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 2.0 μg/m3 (9) 40.0
 
Feb. 21, 2021, 10 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 1.7 μg/m3 (8) 43.0
 
Feb. 21, 2021, 9 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 1.6 μg/m3 (7) 42.0
 
Feb. 21, 2021, 8 p.m. 1.5 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 1.2 μg/m3 (5) 41.0
 
Feb. 21, 2021, 7 p.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 1.0 μg/m3 (5) 40.0
 
Feb. 21, 2021, 6 p.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 1.8 μg/m3 (8) 39.0
 
Feb. 21, 2021, 5 p.m. 2.2 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 2.1 μg/m3 (9) 37.0
 
Feb. 21, 2021, 4 p.m. 4.8 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A N/A 1.7 μg/m3 (8) 32.0
 
Feb. 21, 2021, 3 p.m. 4.3 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) N/A N/A 2.3 μg/m3 (10) 31.0
 
Feb. 21, 2021, 2 p.m. 7.0 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A N/A 1.8 μg/m3 (8) 29.0
 
Feb. 21, 2021, 1 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A N/A 1.7 μg/m3 (8) 33.0
 
Feb. 21, 2021, noon 4.9 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) N/A N/A 2.4 μg/m3 (10) 30.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.8 μg/m3 (8) 33.0
 
Feb. 21, 2021, 10 a.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A N/A 0.8 μg/m3 (4) 36.0
 
Feb. 21, 2021, 9 a.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 1.0 μg/m3 (5) 35.0
 
Feb. 21, 2021, 8 a.m. 4.7 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
Feb. 21, 2021, 7 a.m. 5.0 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A N/A 1.5 μg/m3 (7) 32.0
 
Feb. 21, 2021, 6 a.m. 1.9 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 1.1 μg/m3 (5) 38.0
 
Feb. 21, 2021, 5 a.m. 2.5 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A N/A 1.2 μg/m3 (5) 37.0
 
Feb. 21, 2021, 4 a.m. 3.0 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A N/A 1.2 μg/m3 (5) 37.0
 
Feb. 21, 2021, 3 a.m. 3.2 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) N/A N/A 1.2 μg/m3 (5) 36.0
 
Feb. 21, 2021, 2 a.m. 2.7 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A N/A 1.1 μg/m3 (5) 37.0
 
Feb. 21, 2021, 1 a.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 1.2 μg/m3 (5) 37.0
 
Feb. 21, 2021, midnight 1.8 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A N/A 0.7 μg/m3 (3) 39.0
 
Feb. 20, 2021, 11 p.m. 1.6 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 0.7 μg/m3 (3) 41.0
 
Feb. 20, 2021, 10 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 1.1 μg/m3 (5) 40.0
 
Feb. 20, 2021, 9 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 1.1 μg/m3 (5) 41.0
 
Feb. 20, 2021, 8 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 0.9 μg/m3 (4) 41.0
 
Feb. 20, 2021, 7 p.m. 2.5 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A N/A 1.6 μg/m3 (7) 39.0
 
Feb. 20, 2021, 6 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) N/A N/A 4.0 μg/m3 (17) 39.0
 
Feb. 20, 2021, 5 p.m. 4.8 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A N/A 3.9 μg/m3 (17) 37.0
 
Feb. 20, 2021, 4 p.m. 5.6 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) N/A N/A 3.9 μg/m3 (17) 33.0
 
Feb. 20, 2021, 3 p.m. 5.5 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) N/A N/A 4.6 μg/m3 (20) 25.0
 
Feb. 20, 2021, 2 p.m. 9.4 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) N/A N/A 5.5 μg/m3 (23) 23.0
 
Feb. 20, 2021, 1 p.m. 5.4 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) N/A N/A 4.2 μg/m3 (18) 26.0
 
Feb. 20, 2021, noon 4.8 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) N/A N/A 3.2 μg/m3 (14) 26.0
 
Feb. 20, 2021, 11 a.m. 8.8 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 9.0
 
Feb. 20, 2021, 10 a.m. 8.8 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
Feb. 20, 2021, 9 a.m. 8.3 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) N/A N/A 1.7 μg/m3 (8) 27.0
 
Feb. 20, 2021, 8 a.m. 6.4 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A N/A 2.4 μg/m3 (10) 29.0
 
Feb. 20, 2021, 7 a.m. 8.3 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) N/A N/A 2.7 μg/m3 (12) 28.0
 
Feb. 20, 2021, 6 a.m. 5.4 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
Feb. 20, 2021, 5 a.m. 7.1 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A N/A 4.8 μg/m3 (20) 31.0
 
Feb. 20, 2021, 4 a.m. 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A N/A 2.2 μg/m3 (10) 34.0
 
Feb. 20, 2021, 3 a.m. 6.4 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (34) N/A N/A 1.9 μg/m3 (8) 34.0
 
Feb. 20, 2021, 2 a.m. 5.5 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A N/A 1.3 μg/m3 (6) 36.0
 
Feb. 20, 2021, 1 a.m. 7.7 ppb (8) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) N/A N/A 1.9 μg/m3 (8) 34.0
 
Feb. 20, 2021, midnight 10.8 ppb (11) 2.5 ppb (3) N/A 9.0 ppb (9) N/A N/A 36.0 ppb (34) N/A N/A 2.1 μg/m3 (9) 34.0
 
Feb. 19, 2021, 11 p.m. 6.9 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
Feb. 19, 2021, 10 p.m. 5.8 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) N/A N/A 2.1 μg/m3 (9) 39.0
 
Feb. 19, 2021, 9 p.m. 6.5 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) N/A N/A 2.1 μg/m3 (9) 39.0
 
Feb. 19, 2021, 8 p.m. 5.5 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A N/A 2.2 μg/m3 (10) 41.0
 
Feb. 19, 2021, 7 p.m. 6.7 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) N/A N/A 1.8 μg/m3 (8) 40.0
 
Feb. 19, 2021, 6 p.m. 8.9 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A N/A 4.0 μg/m3 (17) 37.0
 
Feb. 19, 2021, 5 p.m. 13.0 ppb (13) 3.6 ppb (4) N/A 10.0 ppb (10) N/A N/A 37.0 ppb (35) N/A N/A 3.2 μg/m3 (14) 35.0
 
Feb. 19, 2021, 4 p.m. 15.2 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (12) N/A N/A 32.0 ppb (30) N/A N/A 2.9 μg/m3 (13) 30.0
 
Feb. 19, 2021, 3 p.m. 16.6 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (13) N/A N/A 31.0 ppb (29) N/A N/A 3.4 μg/m3 (15) 29.0
 
Feb. 19, 2021, 2 p.m. 16.4 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (13) N/A N/A 30.0 ppb (28) N/A N/A 2.9 μg/m3 (13) 28.0
 
Feb. 19, 2021, 1 p.m. 9.0 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
Feb. 19, 2021, noon 7.5 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 37.0 ppb (35) N/A N/A 1.5 μg/m3 (7) 35.0
 
Feb. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 1.3 μg/m3 (6) 36.0
 
Feb. 19, 2021, 10 a.m. 4.3 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A N/A 1.2 μg/m3 (5) 38.0
 
Feb. 19, 2021, 9 a.m. 4.8 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A N/A 1.4 μg/m3 (6) 37.0
 
Feb. 19, 2021, 8 a.m. 4.3 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A N/A 1.3 μg/m3 (6) 38.0