ID: 1496

AQSQID: 060773005

Site Name: Tracyap

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

Updated: March 6, 2021, 10:32 a.m.

Location: Tracy (Carbona), CA

Reporting: True, Located: True

Current AQI: 38.0

Tracy (Carbona) CA, US: 37.6825, -121.4406

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 6, 2021, 8 a.m. 0.8 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A 10.5 μg/m3 (10) 0.0 μg/m3 (0) 38.0
 
March 6, 2021, 7 a.m. 0.7 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A 9.7 μg/m3 (9) 3.0 μg/m3 (13) 36.0
 
March 6, 2021, 6 a.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A 22.4 μg/m3 (21) 4.0 μg/m3 (17) 36.0
 
March 6, 2021, 5 a.m. 1.5 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 15.5 μg/m3 (15) 3.0 μg/m3 (13) 36.0
 
March 6, 2021, 4 a.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A 9.7 μg/m3 (9) 6.0 μg/m3 (25) 35.0
 
March 6, 2021, 3 a.m. 3.5 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) N/A 12.6 μg/m3 (12) 6.0 μg/m3 (25) 33.0
 
March 6, 2021, 2 a.m. 5.1 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) N/A 22.5 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
March 6, 2021, 1 a.m. 3.7 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) N/A 23.7 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
March 6, 2021, midnight 4.7 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (47) N/A 31.6 μg/m3 (30) 10.0 μg/m3 (42) 47.0
 
March 5, 2021, 11 p.m. 4.7 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (48) N/A 32.6 μg/m3 (31) 7.0 μg/m3 (30) 48.0
 
March 5, 2021, 10 p.m. 4.7 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (47) N/A 35.4 μg/m3 (33) 12.0 μg/m3 (50) 50.0
 
March 5, 2021, 9 p.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) N/A 27.5 μg/m3 (26) 9.0 μg/m3 (38) 45.0
 
March 5, 2021, 8 p.m. 4.9 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) N/A 28.3 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
March 5, 2021, 7 p.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) N/A 27.1 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
March 5, 2021, 6 p.m. 13.9 ppb (14) 3.6 ppb (4) N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) N/A 34.7 μg/m3 (33) 10.0 μg/m3 (42) 42.0
 
March 5, 2021, 5 p.m. 9.5 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) N/A 31.6 μg/m3 (30) 10.0 μg/m3 (42) 42.0
 
March 5, 2021, 4 p.m. 8.4 ppb (8) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) N/A 30.4 μg/m3 (29) 8.0 μg/m3 (34) 34.0
 
March 5, 2021, 3 p.m. 6.7 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A 19.8 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
March 5, 2021, 2 p.m. 4.0 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A 24.4 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
March 5, 2021, 1 p.m. 6.4 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) N/A 21.6 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
March 5, 2021, noon 6.4 ppb (7) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (21) N/A 22.5 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
March 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.5 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
March 5, 2021, 10 a.m. 4.3 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A 20.7 μg/m3 (20) 13.0 μg/m3 (53) 53.0
 
March 5, 2021, 9 a.m. 3.4 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 22.6 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
March 5, 2021, 8 a.m. 3.7 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 28.3 μg/m3 (27) 10.0 μg/m3 (42) 42.0
 
March 5, 2021, 7 a.m. 8.3 ppb (8) -0.2 ppb (0) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) N/A 21.8 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
March 5, 2021, 6 a.m. 5.2 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) N/A 25.6 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
March 5, 2021, 5 a.m. 5.6 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A 21.9 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
March 5, 2021, 4 a.m. 8.0 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) N/A 33.5 μg/m3 (32) 10.0 μg/m3 (42) 42.0
 
March 5, 2021, 3 a.m. 12.5 ppb (12) -0.2 ppb (0) N/A 13.0 ppb (13) N/A N/A 28.0 ppb (26) N/A 29.8 μg/m3 (28) 14.0 μg/m3 (55) 55.0
 
March 5, 2021, 2 a.m. 8.0 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) N/A 36.8 μg/m3 (35) 17.0 μg/m3 (62) 62.0
 
March 5, 2021, 1 a.m. 3.9 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) N/A 32.3 μg/m3 (30) 12.0 μg/m3 (50) 50.0
 
March 5, 2021, midnight 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) N/A 34.3 μg/m3 (32) 11.0 μg/m3 (46) 46.0
 
March 4, 2021, 11 p.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) N/A 33.3 μg/m3 (31) 15.0 μg/m3 (58) 58.0
 
March 4, 2021, 10 p.m. 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A 36.2 μg/m3 (34) 9.0 μg/m3 (38) 44.0
 
March 4, 2021, 9 p.m. 3.7 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 34.1 μg/m3 (32) 12.0 μg/m3 (50) 50.0
 
March 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 13.0 μg/m3 (53) 53.0
 
March 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.6 μg/m3 (33) 7.0 μg/m3 (30) 33.0
 
March 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.6 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
March 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (36) 11.0 μg/m3 (46) 46.0
 
March 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 83.8 μg/m3 (66) 19.0 μg/m3 (66) 66.0
 
March 4, 2021, 3 p.m. 21.6 ppb (21) 5.9 ppb (6) N/A 16.0 ppb (16) N/A N/A 13.0 ppb (13) N/A 128.9 μg/m3 (88) 15.0 μg/m3 (58) 88.0
 
March 4, 2021, 2 p.m. 3.8 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A 14.9 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
March 4, 2021, 1 p.m. 5.3 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) N/A 14.9 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
March 4, 2021, noon 5.2 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) N/A 12.2 μg/m3 (12) 5.0 μg/m3 (21) 25.0
 
March 4, 2021, 11 a.m. 3.1 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 13.2 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
March 4, 2021, 10 a.m. 7.0 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A N/A 25.0 ppb (24) N/A 22.6 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
March 4, 2021, 9 a.m. 8.8 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A 21.0 ppb (20) N/A 24.6 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
March 4, 2021, 8 a.m. 3.2 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
March 4, 2021, 7 a.m. 5.4 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) N/A 18.1 μg/m3 (17) 14.0 μg/m3 (55) 55.0
 
March 4, 2021, 6 a.m. 2.4 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A 13.5 μg/m3 (13) 6.0 μg/m3 (25) 38.0
 
March 4, 2021, 5 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A 18.4 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
March 4, 2021, 4 a.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 26.1 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
March 4, 2021, 3 a.m. 3.0 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 20.4 μg/m3 (19) 8.0 μg/m3 (34) 36.0
 
March 4, 2021, 2 a.m. 3.5 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A 36.1 μg/m3 (34) 11.0 μg/m3 (46) 46.0
 
March 4, 2021, 1 a.m. 5.8 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) N/A 41.2 μg/m3 (39) 12.0 μg/m3 (50) 50.0
 
March 4, 2021, midnight 5.0 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) N/A 33.7 μg/m3 (32) 13.0 μg/m3 (53) 53.0
 
March 3, 2021, 11 p.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (46) N/A 29.9 μg/m3 (28) 10.0 μg/m3 (42) 46.0
 
March 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.9 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.9 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
March 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.8 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
March 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) 8.0 μg/m3 (34) 34.0
 
March 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
March 3, 2021, 5 p.m. 6.5 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) N/A 24.5 μg/m3 (23) 3.0 μg/m3 (13) 36.0
 
March 3, 2021, 4 p.m. 9.8 ppb (10) 0.6 ppb (1) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A 34.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
March 3, 2021, 3 p.m. 7.8 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) N/A 31.2 μg/m3 (29) 7.0 μg/m3 (30) 36.0
 
March 3, 2021, 2 p.m. 10.6 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) N/A 20.4 μg/m3 (19) 7.0 μg/m3 (30) 32.0
 
March 3, 2021, 1 p.m. 15.2 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (15) N/A N/A 25.0 ppb (24) N/A 24.2 μg/m3 (23) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, noon 10.1 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (10) N/A N/A 23.0 ppb (22) N/A 22.1 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 10 a.m. 5.9 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A 16.5 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
March 3, 2021, 9 a.m. 3.3 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 17.5 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
March 3, 2021, 8 a.m. 3.5 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 15.5 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
March 3, 2021, 7 a.m. 3.6 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 19.4 μg/m3 (18) 6.0 μg/m3 (25) 34.0
 
March 3, 2021, 6 a.m. 3.9 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) N/A 20.3 μg/m3 (19) 3.0 μg/m3 (13) 33.0
 
March 3, 2021, 5 a.m. 3.4 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 12.6 μg/m3 (12) 6.0 μg/m3 (25) 34.0
 
March 3, 2021, 4 a.m. 3.4 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 21.4 μg/m3 (20) 7.0 μg/m3 (30) 34.0
 
March 3, 2021, 3 a.m. 5.3 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A 20.4 μg/m3 (19) 6.0 μg/m3 (25) 32.0
 
March 3, 2021, 2 a.m. 8.6 ppb (9) -0.1 ppb (0) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) N/A 17.6 μg/m3 (17) 4.0 μg/m3 (17) 30.0
 
March 3, 2021, 1 a.m. 4.8 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A 23.6 μg/m3 (22) 4.0 μg/m3 (17) 37.0
 
March 3, 2021, midnight 2.2 ppb (3) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A 20.8 μg/m3 (20) 3.0 μg/m3 (13) 45.0
 
March 2, 2021, 11 p.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A 23.7 μg/m3 (22) 4.0 μg/m3 (17) 45.0
 
March 2, 2021, 10 p.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) N/A 17.8 μg/m3 (17) 7.0 μg/m3 (30) 46.0
 
March 2, 2021, 9 p.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A 20.7 μg/m3 (20) 6.0 μg/m3 (25) 43.0
 
March 2, 2021, 8 p.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A 21.6 μg/m3 (20) 4.0 μg/m3 (17) 40.0
 
March 2, 2021, 7 p.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A 16.7 μg/m3 (16) 4.0 μg/m3 (17) 40.0
 
March 2, 2021, 6 p.m. 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A 23.3 μg/m3 (22) 6.0 μg/m3 (25) 38.0
 
March 2, 2021, 5 p.m. 4.7 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 22.2 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
March 2, 2021, 4 p.m. 5.9 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) N/A 25.0 μg/m3 (24) 7.0 μg/m3 (30) 34.0
 
March 2, 2021, 3 p.m. 9.7 ppb (10) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) N/A 27.7 μg/m3 (26) 5.0 μg/m3 (21) 29.0
 
March 2, 2021, 2 p.m. 11.7 ppb (12) 0.0 ppb (0) N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) N/A 26.7 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
March 2, 2021, 1 p.m. 10.1 ppb (10) -0.2 ppb (0) N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) N/A 21.9 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
March 2, 2021, noon 7.3 ppb (7) -0.1 ppb (0) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A 24.8 μg/m3 (23) 6.0 μg/m3 (25) 31.0
 
March 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
March 2, 2021, 10 a.m. 3.3 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 14.3 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
March 2, 2021, 9 a.m. 2.6 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A 18.1 μg/m3 (17) 4.0 μg/m3 (17) 34.0
 
March 2, 2021, 8 a.m. 3.2 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 16.3 μg/m3 (16) 4.0 μg/m3 (17) 35.0
 
March 2, 2021, 7 a.m. 3.9 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 17.2 μg/m3 (16) 5.0 μg/m3 (21) 34.0
 
March 2, 2021, 6 a.m. 3.8 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 13.4 μg/m3 (13) 4.0 μg/m3 (17) 35.0
 
March 2, 2021, 5 a.m. 3.5 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 18.2 μg/m3 (17) 4.0 μg/m3 (17) 35.0
 
March 2, 2021, 4 a.m. 6.5 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A N/A 37.0 ppb (35) N/A 20.3 μg/m3 (19) 1.0 μg/m3 (5) 35.0
 
March 2, 2021, 3 a.m. 6.3 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (7) N/A N/A 37.0 ppb (35) N/A 21.3 μg/m3 (20) 4.0 μg/m3 (17) 35.0
 
March 2, 2021, 2 a.m. 9.4 ppb (9) -0.2 ppb (0) N/A 10.0 ppb (10) N/A N/A 37.0 ppb (35) N/A 35.1 μg/m3 (33) 7.0 μg/m3 (30) 35.0
 
March 2, 2021, 1 a.m. 6.2 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (43) N/A 37.5 μg/m3 (35) 10.0 μg/m3 (42) 43.0
 
March 2, 2021, midnight 3.2 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (50) N/A 31.7 μg/m3 (30) 11.0 μg/m3 (46) 50.0
 
March 1, 2021, 11 p.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) N/A 30.8 μg/m3 (29) 5.0 μg/m3 (21) 51.0
 
March 1, 2021, 10 p.m. 3.3 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (50) N/A 34.7 μg/m3 (33) 6.0 μg/m3 (25) 50.0
 
March 1, 2021, 9 p.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) N/A 22.7 μg/m3 (22) 7.0 μg/m3 (30) 45.0
 
March 1, 2021, 8 p.m. 5.9 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (38) N/A 24.5 μg/m3 (23) 6.0 μg/m3 (25) 38.0
 
March 1, 2021, 7 p.m. 7.2 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A 29.3 μg/m3 (28) 7.0 μg/m3 (30) 37.0
 
March 1, 2021, 6 p.m. 13.9 ppb (14) 4.1 ppb (4) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) N/A 38.6 μg/m3 (36) 15.0 μg/m3 (58) 58.0
 
March 1, 2021, 5 p.m. 13.7 ppb (13) 4.1 ppb (4) N/A 10.0 ppb (10) N/A N/A 23.0 ppb (22) N/A 83.5 μg/m3 (66) 11.0 μg/m3 (46) 66.0
 
March 1, 2021, 4 p.m. 15.0 ppb (15) 4.5 ppb (5) N/A 10.0 ppb (10) N/A N/A 19.0 ppb (18) N/A 70.3 μg/m3 (59) 16.0 μg/m3 (60) 60.0
 
March 1, 2021, 3 p.m. 4.6 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A 7.5 μg/m3 (7) 3.0 μg/m3 (13) 25.0
 
March 1, 2021, 2 p.m. 4.4 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) N/A 11.3 μg/m3 (11) 4.0 μg/m3 (17) 24.0
 
March 1, 2021, 1 p.m. 5.5 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) N/A 22.6 μg/m3 (21) 5.0 μg/m3 (21) 24.0
 
March 1, 2021, noon 7.9 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 23.0 ppb (22) N/A 8.5 μg/m3 (8) 3.0 μg/m3 (13) 22.0
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) 3.0 μg/m3 (13) 13.0
 
March 1, 2021, 10 a.m. 2.5 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A 7.6 μg/m3 (8) 2.0 μg/m3 (9) 27.0
 
March 1, 2021, 9 a.m. 1.5 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 11.3 μg/m3 (11) 3.0 μg/m3 (13) 28.0
 
March 1, 2021, 8 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) N/A 8.5 μg/m3 (8) 3.0 μg/m3 (13) 30.0
 
March 1, 2021, 7 a.m. 2.6 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 7.6 μg/m3 (8) 7.0 μg/m3 (30) 30.0
 
March 1, 2021, 6 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) N/A 13.3 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
March 1, 2021, 5 a.m. 2.4 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) N/A 12.4 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
March 1, 2021, 4 a.m. 2.3 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A 17.2 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
March 1, 2021, 3 a.m. 2.9 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A 25.8 μg/m3 (24) 6.0 μg/m3 (25) 31.0
 
March 1, 2021, 2 a.m. 3.9 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 25.1 μg/m3 (24) 7.0 μg/m3 (30) 34.0
 
March 1, 2021, 1 a.m. 2.0 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A 23.4 μg/m3 (22) 8.0 μg/m3 (34) 42.0
 
March 1, 2021, midnight 1.3 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A 18.6 μg/m3 (18) -2.0 μg/m3 (0) 41.0
 
Feb. 28, 2021, 11 p.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 4.9 μg/m3 (5) 2.0 μg/m3 (9) 40.0
 
Feb. 28, 2021, 10 p.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A 3.9 μg/m3 (4) 6.0 μg/m3 (25) 38.0
 
Feb. 28, 2021, 9 p.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A 2.9 μg/m3 (3) 4.0 μg/m3 (17) 38.0
 
Feb. 28, 2021, 8 p.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 3.9 μg/m3 (4) 1.0 μg/m3 (5) 35.0
 
Feb. 28, 2021, 7 p.m. 1.2 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A 4.8 μg/m3 (5) 4.0 μg/m3 (17) 34.0
 
Feb. 28, 2021, 6 p.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 4.8 μg/m3 (5) 5.0 μg/m3 (21) 33.0
 
Feb. 28, 2021, 5 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 2.9 μg/m3 (3) 4.0 μg/m3 (17) 33.0
 
Feb. 28, 2021, 4 p.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 2.8 μg/m3 (3) 6.0 μg/m3 (25) 33.0
 
Feb. 28, 2021, 3 p.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 5.7 μg/m3 (6) 4.0 μg/m3 (17) 33.0
 
Feb. 28, 2021, 2 p.m. 1.3 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 3.8 μg/m3 (4) 3.0 μg/m3 (13) 33.0
 
Feb. 28, 2021, 1 p.m. 2.0 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 4.7 μg/m3 (5) 3.0 μg/m3 (13) 33.0
 
Feb. 28, 2021, noon 3.3 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) N/A 4.8 μg/m3 (5) 2.0 μg/m3 (9) 32.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (3) 2.0 μg/m3 (9) 9.0
 
Feb. 28, 2021, 10 a.m. 2.3 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) N/A 4.8 μg/m3 (5) 3.0 μg/m3 (13) 30.0
 
Feb. 28, 2021, 9 a.m. 4.0 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) N/A 2.9 μg/m3 (3) 3.0 μg/m3 (13) 30.0
 
Feb. 28, 2021, 8 a.m. 1.1 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 34.0
 
Feb. 28, 2021, 7 a.m. 1.1 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A 1.9 μg/m3 (2) 5.0 μg/m3 (21) 35.0
 
Feb. 28, 2021, 6 a.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A 3.9 μg/m3 (4) 1.0 μg/m3 (5) 36.0
 
Feb. 28, 2021, 5 a.m. 1.3 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 2.9 μg/m3 (3) 1.0 μg/m3 (5) 36.0
 
Feb. 28, 2021, 4 a.m. 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 4.8 μg/m3 (5) -1.0 μg/m3 (0) 35.0
 
Feb. 28, 2021, 3 a.m. 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 7.7 μg/m3 (8) N/A 36.0
 
Feb. 28, 2021, 2 a.m. 1.6 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 9.7 μg/m3 (9) 1.0 μg/m3 (5) 36.0
 
Feb. 28, 2021, 1 a.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A 14.6 μg/m3 (14) 2.0 μg/m3 (9) 38.0
 
Feb. 28, 2021, midnight 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A 17.6 μg/m3 (17) 1.0 μg/m3 (5) 39.0
 
Feb. 27, 2021, 11 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 14.6 μg/m3 (14) -1.0 μg/m3 (0) 40.0
 
Feb. 27, 2021, 10 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A 11.7 μg/m3 (11) 1.0 μg/m3 (5) 39.0
 
Feb. 27, 2021, 9 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A 40.9 μg/m3 (38) 2.0 μg/m3 (9) 39.0
 
Feb. 27, 2021, 8 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A 26.2 μg/m3 (25) 1.0 μg/m3 (5) 38.0
 
Feb. 27, 2021, 7 p.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A 13.5 μg/m3 (13) 1.0 μg/m3 (5) 38.0
 
Feb. 27, 2021, 6 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A 19.2 μg/m3 (18) 0.0 μg/m3 (0) 36.0
 
Feb. 27, 2021, 5 p.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A 27.7 μg/m3 (26) 4.0 μg/m3 (17) 37.0
 
Feb. 27, 2021, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 10.5 μg/m3 (10) 4.0 μg/m3 (17) 36.0
 
Feb. 27, 2021, 3 p.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) N/A 9.5 μg/m3 (9) 1.0 μg/m3 (5) 34.0
 
Feb. 27, 2021, 2 p.m. 3.1 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A 6.6 μg/m3 (7) 4.0 μg/m3 (17) 33.0
 
Feb. 27, 2021, 1 p.m. 3.6 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A 10.4 μg/m3 (10) 5.0 μg/m3 (21) 32.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Feb. 27, 2021, 10 a.m. 2.2 ppb (3) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 8.6 μg/m3 (8) 4.0 μg/m3 (17) 33.0
 
Feb. 27, 2021, 9 a.m. 1.2 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 7.7 μg/m3 (8) 5.0 μg/m3 (21) 35.0