ID: 174

AQSQID: 060610006

Site Name: Roseville - N.Sunrise/Douglas

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

Updated: June 23, 2021, 8:52 p.m.

Location: Roseville (Lead Hill), CA

Reporting: True, Located: True

Current AQI: 30.0

Roseville (Lead Hill) CA, US: 38.74643, -121.26498

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 7.0 μg/m3 (30) 30.0
 
June 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
June 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
June 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
June 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
June 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 6.0 μg/m3 (25) 25.0
 
June 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 17.0
 
June 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
June 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
June 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
June 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
June 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 5.0 μg/m3 (21) 21.0
 
June 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 6.0 μg/m3 (25) 25.0
 
June 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
June 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
June 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
June 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
June 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
June 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
June 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
June 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
June 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
June 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
June 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
June 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 7.0 μg/m3 (30) 30.0
 
June 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 7.0 μg/m3 (30) 30.0
 
June 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 17.0
 
June 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 17.0
 
June 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
June 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
June 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
June 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
June 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
June 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
June 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 8.0 μg/m3 (34) 34.0
 
June 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
June 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
June 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
June 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
June 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
June 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
June 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
June 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
June 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
June 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
June 21, 2021, 3 p.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
June 21, 2021, 2 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A 10.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
June 21, 2021, 1 p.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
June 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 8.0 μg/m3 (34) 34.0
 
June 21, 2021, 11 a.m. 1.3 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (34) 34.0
 
June 21, 2021, 10 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (30) N/A 3.0 μg/m3 (3) 8.0 μg/m3 (34) 34.0
 
June 21, 2021, 9 a.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A 1.0 μg/m3 (1) 6.0 μg/m3 (25) 34.0
 
June 21, 2021, 8 a.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A 1.0 μg/m3 (1) 7.0 μg/m3 (30) 34.0
 
June 21, 2021, 7 a.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A 2.0 μg/m3 (2) 7.0 μg/m3 (30) 35.0
 
June 21, 2021, 6 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 33.0
 
June 21, 2021, 5 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A 6.0 μg/m3 (6) 6.0 μg/m3 (25) 35.0
 
June 21, 2021, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) N/A 7.0 μg/m3 (7) 7.0 μg/m3 (30) 39.0
 
June 21, 2021, 3 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) N/A 8.0 μg/m3 (8) 6.0 μg/m3 (25) 45.0
 
June 21, 2021, 2 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) N/A 8.0 μg/m3 (8) 9.0 μg/m3 (38) 49.0
 
June 21, 2021, 1 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) N/A 4.0 μg/m3 (4) 14.0 μg/m3 (55) 58.0
 
June 21, 2021, midnight 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 55.0
 
June 20, 2021, 11 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 58.0
 
June 20, 2021, 10 p.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) N/A 7.0 μg/m3 (7) 5.0 μg/m3 (21) 55.0
 
June 20, 2021, 9 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 58.0
 
June 20, 2021, 8 p.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 50.0
 
June 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
June 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
June 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) N/A 13.0
 
June 20, 2021, 4 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) N/A 35.0
 
June 20, 2021, 3 p.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A 13.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
June 20, 2021, 2 p.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 13.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
June 20, 2021, 1 p.m. 1.5 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 13.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
June 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
June 20, 2021, 11 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 13.0 μg/m3 (53) 53.0
 
June 20, 2021, 10 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A 17.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
June 20, 2021, 9 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
June 20, 2021, 8 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 12.0 μg/m3 (12) 15.0 μg/m3 (58) 58.0
 
June 20, 2021, 7 a.m. 2.3 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A 12.0 μg/m3 (12) 14.0 μg/m3 (55) 55.0
 
June 20, 2021, 6 a.m. 3.4 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 20.0 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
June 20, 2021, 5 a.m. 4.6 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) N/A 12.0 μg/m3 (12) 15.0 μg/m3 (58) 58.0
 
June 20, 2021, 4 a.m. 5.1 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) N/A 21.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
June 20, 2021, 3 a.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 7.0 μg/m3 (7) 15.0 μg/m3 (58) 58.0
 
June 20, 2021, 2 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (55) N/A 8.0 μg/m3 (8) 9.0 μg/m3 (38) 55.0
 
June 20, 2021, 1 a.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (61) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 61.0
 
June 20, 2021, midnight 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (61) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 61.0
 
June 19, 2021, 11 p.m. 3.6 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 62.0 ppb (74) N/A 26.0 μg/m3 (25) 12.0 μg/m3 (50) 74.0
 
June 19, 2021, 10 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 69.0 ppb (97) N/A 25.0 μg/m3 (24) 11.0 μg/m3 (46) 97.0
 
June 19, 2021, 9 p.m. 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (81) N/A 30.0 μg/m3 (28) 11.0 μg/m3 (46) 81.0
 
June 19, 2021, 8 p.m. 5.3 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 63.0 ppb (78) N/A 24.0 μg/m3 (23) 14.0 μg/m3 (55) 78.0
 
June 19, 2021, 7 p.m. 4.9 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (55) N/A 19.0 μg/m3 (18) 16.0 μg/m3 (60) 60.0
 
June 19, 2021, 6 p.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) N/A 19.0 μg/m3 (18) 16.0 μg/m3 (60) 60.0
 
June 19, 2021, 5 p.m. 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 18.0 μg/m3 (17) 15.0 μg/m3 (58) 58.0
 
June 19, 2021, 4 p.m. 3.6 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) N/A 22.0 μg/m3 (21) 15.0 μg/m3 (58) 58.0
 
June 19, 2021, 3 p.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 17.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
June 19, 2021, 2 p.m. 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) N/A 15.0 μg/m3 (14) 16.0 μg/m3 (60) 60.0
 
June 19, 2021, 1 p.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 13.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
June 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 16.0 μg/m3 (60) 60.0
 
June 19, 2021, 11 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 13.0 μg/m3 (53) 53.0
 
June 19, 2021, 10 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A 13.0 μg/m3 (13) 17.0 μg/m3 (62) 62.0
 
June 19, 2021, 9 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 19.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
June 19, 2021, 8 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A 17.0 μg/m3 (16) 14.0 μg/m3 (55) 55.0
 
June 19, 2021, 7 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) N/A 25.0 μg/m3 (24) 15.0 μg/m3 (58) 58.0
 
June 19, 2021, 6 a.m. 4.1 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 32.0 μg/m3 (30) 23.0 μg/m3 (74) 74.0
 
June 19, 2021, 5 a.m. 5.2 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) N/A 29.0 μg/m3 (27) 19.0 μg/m3 (66) 66.0
 
June 19, 2021, 4 a.m. 4.3 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) N/A 20.0 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
June 19, 2021, 3 a.m. 5.9 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (51) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 51.0
 
June 19, 2021, 2 a.m. 5.0 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (58) N/A 11.0 μg/m3 (11) 8.0 μg/m3 (34) 58.0
 
June 19, 2021, 1 a.m. 3.6 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (49) N/A 8.0 μg/m3 (8) 9.0 μg/m3 (38) 49.0
 
June 19, 2021, midnight 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 8.0 μg/m3 (8) 7.0 μg/m3 (30) 49.0
 
June 18, 2021, 11 p.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (50) N/A 18.0 μg/m3 (17) 9.0 μg/m3 (38) 50.0
 
June 18, 2021, 10 p.m. 4.0 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (55) N/A 26.0 μg/m3 (25) 14.0 μg/m3 (55) 55.0
 
June 18, 2021, 9 p.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (55) N/A 21.0 μg/m3 (20) 14.0 μg/m3 (55) 55.0
 
June 18, 2021, 8 p.m. 4.3 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) N/A 28.0 μg/m3 (26) 11.0 μg/m3 (46) 51.0
 
June 18, 2021, 7 p.m. 4.3 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (49) N/A 24.0 μg/m3 (23) 13.0 μg/m3 (53) 53.0
 
June 18, 2021, 6 p.m. 4.7 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (47) N/A 25.0 μg/m3 (24) 14.0 μg/m3 (55) 55.0
 
June 18, 2021, 5 p.m. 7.0 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 55.0 ppb (51) N/A 24.0 μg/m3 (23) 12.0 μg/m3 (50) 51.0
 
June 18, 2021, 4 p.m. 11.8 ppb (12) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 51.0 ppb (48) N/A 27.0 μg/m3 (25) 15.0 μg/m3 (58) 58.0
 
June 18, 2021, 3 p.m. 16.3 ppb (16) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 34.0 ppb (32) N/A 15.0 μg/m3 (14) 13.0 μg/m3 (53) 53.0
 
June 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
June 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
June 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
June 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
June 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 8.0 μg/m3 (34) 34.0
 
June 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
June 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
June 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
June 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
June 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 17.0 μg/m3 (62) 62.0
 
June 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
June 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
June 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
June 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
June 18, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
June 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
June 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 8.0 μg/m3 (34) 34.0
 
June 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 13.0 μg/m3 (53) 53.0
 
June 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
June 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
June 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 8.0 μg/m3 (34) 34.0
 
June 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
June 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
June 17, 2021, 3 p.m. 23.9 ppb (23) 3.9 ppb (4) N/A 20.0 ppb (19) N/A N/A 32.0 ppb (30) N/A 33.0 μg/m3 (31) 13.0 μg/m3 (53) 53.0
 
June 17, 2021, 2 p.m. 42.7 ppb (41) 11.8 ppb (12) N/A 31.0 ppb (30) N/A N/A 12.0 ppb (12) N/A 26.0 μg/m3 (25) 15.0 μg/m3 (58) 58.0
 
June 17, 2021, 1 p.m. 48.4 ppb (46) 15.5 ppb (15) N/A 33.0 ppb (32) N/A N/A 4.0 ppb (4) N/A 24.0 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
June 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
June 17, 2021, 11 a.m. 4.1 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 26.0
 
June 17, 2021, 10 a.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 26.0
 
June 17, 2021, 9 a.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
June 17, 2021, 8 a.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
June 17, 2021, 7 a.m. 5.2 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) N/A 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
June 17, 2021, 6 a.m. 7.0 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) N/A 24.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
June 17, 2021, 5 a.m. 16.7 ppb (16) 0.3 ppb (1) N/A 16.0 ppb (16) N/A N/A 25.0 ppb (24) N/A 29.0 μg/m3 (27) 10.0 μg/m3 (42) 42.0
 
June 17, 2021, 4 a.m. 20.7 ppb (20) 0.4 ppb (1) N/A 20.0 ppb (19) N/A N/A 30.0 ppb (28) N/A 22.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
June 17, 2021, 3 a.m. 18.3 ppb (18) 0.2 ppb (1) N/A 18.0 ppb (17) N/A N/A 41.0 ppb (38) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (30) 38.0
 
June 17, 2021, 2 a.m. 7.8 ppb (8) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 52.0 ppb (49) N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 49.0
 
June 17, 2021, 1 a.m. 5.6 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (50) N/A 18.0 μg/m3 (17) 8.0 μg/m3 (34) 50.0
 
June 17, 2021, midnight 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 54.0 ppb (50) N/A 17.0 μg/m3 (16) 3.0 μg/m3 (13) 50.0
 
June 16, 2021, 11 p.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
June 16, 2021, 10 p.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (50) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 50.0
 
June 16, 2021, 9 p.m. 3.6 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 47.0
 
June 16, 2021, 8 p.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 44.0