ID: 174

AQSQID: 060610006

Site Name: Roseville - N.Sunrise/Douglas

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

Updated: Sept. 18, 2021, 6:59 p.m.

Location: Roseville (Lead Hill), CA

Reporting: True, Located: True

Current AQI: 42.0

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
Sept. 18, 2021, 5 p.m. 3.7 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A 22.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
Sept. 18, 2021, 4 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) N/A 23.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2021, 3 p.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A 24.0 μg/m3 (23) 13.0 μg/m3 (53) 53.0
 
Sept. 18, 2021, 2 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A 26.0 μg/m3 (25) 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 1 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) N/A 21.0 μg/m3 (20) 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
Sept. 18, 2021, 11 a.m. 1.6 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) N/A 26.0 μg/m3 (25) 16.0 μg/m3 (60) 60.0
 
Sept. 18, 2021, 10 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A 27.0 μg/m3 (25) 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, 9 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) N/A 27.0 μg/m3 (25) 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, 8 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 29.0 μg/m3 (27) 22.0 μg/m3 (72) 72.0
 
Sept. 18, 2021, 7 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 25.0 μg/m3 (24) 14.0 μg/m3 (55) 55.0
 
Sept. 18, 2021, 6 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A 30.0 μg/m3 (28) 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 5 a.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) N/A 37.0 μg/m3 (35) 22.0 μg/m3 (72) 72.0
 
Sept. 18, 2021, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A 45.0 μg/m3 (42) 30.0 μg/m3 (89) 89.0
 
Sept. 18, 2021, 3 a.m. 4.4 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A 43.0 μg/m3 (40) 26.0 μg/m3 (81) 81.0
 
Sept. 18, 2021, 2 a.m. 5.5 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (46) N/A 49.0 μg/m3 (46) 31.0 μg/m3 (91) 91.0
 
Sept. 18, 2021, 1 a.m. 6.4 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 57.0 ppb (58) N/A 48.0 μg/m3 (45) 29.0 μg/m3 (87) 87.0
 
Sept. 18, 2021, midnight 5.2 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 60.0 ppb (68) N/A 40.0 μg/m3 (38) 19.0 μg/m3 (66) 68.0
 
Sept. 17, 2021, 11 p.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (81) N/A 39.0 μg/m3 (37) 20.0 μg/m3 (68) 81.0
 
Sept. 17, 2021, 10 p.m. 5.2 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 66.0 ppb (87) N/A 39.0 μg/m3 (37) 16.0 μg/m3 (60) 87.0
 
Sept. 17, 2021, 9 p.m. 6.7 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 61.0 ppb (71) N/A 41.0 μg/m3 (38) 19.0 μg/m3 (66) 71.0
 
Sept. 17, 2021, 8 p.m. 5.5 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (50) N/A 41.0 μg/m3 (38) 21.0 μg/m3 (70) 70.0
 
Sept. 17, 2021, 7 p.m. 6.1 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 42.0 μg/m3 (39) 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, 6 p.m. 6.1 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A 36.0 μg/m3 (34) 18.0 μg/m3 (64) 64.0
 
Sept. 17, 2021, 5 p.m. 5.2 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 38.0 μg/m3 (36) 17.0 μg/m3 (62) 62.0
 
Sept. 17, 2021, 4 p.m. 5.4 ppb (6) 1.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) N/A 31.0 μg/m3 (29) 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 3 p.m. 5.6 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (18) N/A 27.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 2 p.m. 6.4 ppb (7) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (14) N/A 23.0 μg/m3 (22) 13.0 μg/m3 (53) 53.0
 
Sept. 17, 2021, 1 p.m. 5.4 ppb (6) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (16) N/A 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
Sept. 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 11 a.m. 2.4 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A 23.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 10 a.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A 18.0 μg/m3 (17) 13.0 μg/m3 (53) 53.0
 
Sept. 17, 2021, 9 a.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) N/A 22.0 μg/m3 (21) 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 8 a.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) N/A 18.0 μg/m3 (17) 18.0 μg/m3 (64) 64.0
 
Sept. 17, 2021, 7 a.m. 3.2 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) N/A 20.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 6 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A 20.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 5 a.m. 4.6 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A 26.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Sept. 17, 2021, 4 a.m. 6.9 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) N/A 24.0 μg/m3 (23) 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 3 a.m. 7.4 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 37.0 ppb (35) N/A 31.0 μg/m3 (29) 18.0 μg/m3 (64) 64.0
 
Sept. 17, 2021, 2 a.m. 6.1 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) N/A 36.0 μg/m3 (34) 24.0 μg/m3 (77) 77.0
 
Sept. 17, 2021, 1 a.m. 5.3 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) N/A 35.0 μg/m3 (33) 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, midnight 5.2 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (50) N/A 42.0 μg/m3 (39) 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 11 p.m. 4.9 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (58) N/A 45.0 μg/m3 (42) 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 10 p.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (55) N/A 47.0 μg/m3 (44) 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, 9 p.m. 6.5 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (50) N/A 46.0 μg/m3 (43) 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 8 p.m. 5.1 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) N/A 38.0 μg/m3 (36) 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, 7 p.m. 4.3 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A 34.0 μg/m3 (32) 21.0 μg/m3 (70) 70.0
 
Sept. 16, 2021, 6 p.m. 4.2 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A 28.0 μg/m3 (26) 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 5 p.m. 4.0 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A 22.0 μg/m3 (21) 19.0 μg/m3 (66) 66.0
 
Sept. 16, 2021, 4 p.m. 4.1 ppb (4) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A 27.0 μg/m3 (25) 13.0 μg/m3 (53) 53.0
 
Sept. 16, 2021, 3 p.m. 6.2 ppb (6) 2.6 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 21.0 μg/m3 (70) 70.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 21.0 μg/m3 (70) 70.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 26.0 μg/m3 (81) 81.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (40) 28.0 μg/m3 (85) 85.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (50) 27.0 μg/m3 (83) 83.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (46) 25.0 μg/m3 (79) 79.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 25.0 μg/m3 (79) 79.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (38) 22.0 μg/m3 (72) 72.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (40) 24.0 μg/m3 (77) 77.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (34) 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 24.0 μg/m3 (77) 77.0
 
Sept. 15, 2021, 3 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 30.0 μg/m3 (28) 21.0 μg/m3 (70) 70.0
 
Sept. 15, 2021, 2 p.m. 5.7 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) N/A 35.0 μg/m3 (33) 18.0 μg/m3 (64) 64.0
 
Sept. 15, 2021, 1 p.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) N/A 31.0 μg/m3 (29) 19.0 μg/m3 (66) 66.0
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 18.0 μg/m3 (64) 64.0
 
Sept. 15, 2021, 11 a.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) N/A 22.0 μg/m3 (21) 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 10 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A 31.0 μg/m3 (29) 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 9 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) N/A 31.0 μg/m3 (29) 26.0 μg/m3 (81) 81.0
 
Sept. 15, 2021, 8 a.m. 2.9 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 37.0 μg/m3 (35) 23.0 μg/m3 (74) 74.0
 
Sept. 15, 2021, 7 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 39.0 μg/m3 (37) 25.0 μg/m3 (79) 79.0
 
Sept. 15, 2021, 6 a.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 37.0 μg/m3 (35) 21.0 μg/m3 (70) 70.0
 
Sept. 15, 2021, 5 a.m. 7.0 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) N/A 31.0 μg/m3 (29) 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 4 a.m. 8.6 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A N/A 40.0 ppb (38) N/A 35.0 μg/m3 (33) 19.0 μg/m3 (66) 66.0
 
Sept. 15, 2021, 3 a.m. 7.9 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 45.0 ppb (42) N/A 31.0 μg/m3 (29) 17.0 μg/m3 (62) 62.0
 
Sept. 15, 2021, 2 a.m. 7.0 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 56.0 ppb (55) N/A 39.0 μg/m3 (37) 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 1 a.m. 5.9 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 76.0 ppb (104) N/A 63.0 μg/m3 (55) 37.0 μg/m3 (105) 105.0
 
Sept. 15, 2021, midnight 5.6 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 81.0 ppb (107) N/A 56.0 μg/m3 (52) 38.0 μg/m3 (108) 108.0
 
Sept. 14, 2021, 11 p.m. 5.5 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 80.0 ppb (106) N/A 52.0 μg/m3 (49) 38.0 μg/m3 (108) 108.0
 
Sept. 14, 2021, 10 p.m. 5.5 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 78.0 ppb (105) N/A 50.0 μg/m3 (47) 33.0 μg/m3 (95) 105.0
 
Sept. 14, 2021, 9 p.m. 5.2 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 70.0 ppb (100) N/A 50.0 μg/m3 (47) 28.0 μg/m3 (85) 100.0
 
Sept. 14, 2021, 8 p.m. 3.9 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 65.0 ppb (84) N/A 44.0 μg/m3 (41) 23.0 μg/m3 (74) 84.0
 
Sept. 14, 2021, 7 p.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (65) N/A 44.0 μg/m3 (41) 32.0 μg/m3 (93) 93.0
 
Sept. 14, 2021, 6 p.m. 3.4 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 44.0 μg/m3 (41) 33.0 μg/m3 (95) 95.0
 
Sept. 14, 2021, 5 p.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) N/A 42.0 μg/m3 (39) 28.0 μg/m3 (85) 85.0
 
Sept. 14, 2021, 4 p.m. 6.8 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A 43.0 μg/m3 (40) 26.0 μg/m3 (81) 81.0
 
Sept. 14, 2021, 3 p.m. 7.8 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) N/A 44.0 μg/m3 (41) 35.0 μg/m3 (100) 100.0
 
Sept. 14, 2021, 2 p.m. 14.7 ppb (14) 1.9 ppb (2) N/A 13.0 ppb (13) N/A N/A 15.0 ppb (14) N/A 43.0 μg/m3 (40) 33.0 μg/m3 (95) 95.0
 
Sept. 14, 2021, 1 p.m. 10.9 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 19.0 ppb (18) N/A 40.0 μg/m3 (38) 31.0 μg/m3 (91) 91.0
 
Sept. 14, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 26.0 μg/m3 (81) 81.0
 
Sept. 14, 2021, 11 a.m. 3.6 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A 32.0 μg/m3 (30) 29.0 μg/m3 (87) 87.0
 
Sept. 14, 2021, 10 a.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 31.0 μg/m3 (29) 23.0 μg/m3 (74) 74.0
 
Sept. 14, 2021, 9 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A 32.0 μg/m3 (30) 22.0 μg/m3 (72) 72.0
 
Sept. 14, 2021, 8 a.m. 3.7 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A 35.0 μg/m3 (33) 34.0 μg/m3 (98) 98.0
 
Sept. 14, 2021, 7 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A 37.0 μg/m3 (35) 24.0 μg/m3 (77) 77.0
 
Sept. 14, 2021, 6 a.m. 5.6 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (38) N/A 40.0 μg/m3 (38) 25.0 μg/m3 (79) 79.0
 
Sept. 14, 2021, 5 a.m. 10.4 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) N/A 41.0 μg/m3 (38) 26.0 μg/m3 (81) 81.0
 
Sept. 14, 2021, 4 a.m. 20.3 ppb (20) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 27.0 ppb (25) N/A 50.0 μg/m3 (47) 28.0 μg/m3 (85) 85.0
 
Sept. 14, 2021, 3 a.m. 24.5 ppb (24) 0.8 ppb (1) N/A 24.0 ppb (23) N/A N/A 27.0 ppb (25) N/A 55.0 μg/m3 (51) 28.0 μg/m3 (85) 85.0
 
Sept. 14, 2021, 2 a.m. 17.6 ppb (17) 0.3 ppb (1) N/A 17.0 ppb (17) N/A N/A 47.0 ppb (44) N/A 47.0 μg/m3 (44) 27.0 μg/m3 (83) 83.0
 
Sept. 14, 2021, 1 a.m. 7.2 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 62.0 ppb (74) N/A 39.0 μg/m3 (37) 26.0 μg/m3 (81) 81.0
 
Sept. 14, 2021, midnight 5.4 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 63.0 ppb (78) N/A 38.0 μg/m3 (36) 24.0 μg/m3 (77) 78.0
 
Sept. 13, 2021, 11 p.m. 3.9 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (84) N/A 34.0 μg/m3 (32) 21.0 μg/m3 (70) 84.0
 
Sept. 13, 2021, 10 p.m. 4.5 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 66.0 ppb (87) N/A 29.0 μg/m3 (27) 19.0 μg/m3 (66) 87.0
 
Sept. 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 17.0 μg/m3 (62) 62.0
 
Sept. 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 19.0 μg/m3 (66) 66.0
 
Sept. 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 14.0 μg/m3 (55) 55.0
 
Sept. 13, 2021, 4 p.m. 9.0 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A N/A 40.0 ppb (38) N/A 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
Sept. 13, 2021, 3 p.m. 32.0 ppb (31) 9.1 ppb (9) N/A 23.0 ppb (22) N/A N/A 15.0 ppb (14) N/A 39.0 μg/m3 (37) 16.0 μg/m3 (60) 60.0
 
Sept. 13, 2021, 2 p.m. 23.7 ppb (23) 6.2 ppb (6) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (6) N/A 30.0 μg/m3 (28) 14.0 μg/m3 (55) 55.0
 
Sept. 13, 2021, 1 p.m. 9.8 ppb (10) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A 22.0 ppb (21) N/A 26.0 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
Sept. 13, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2021, 11 a.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 13.0 μg/m3 (13) 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2021, 10 a.m. 4.3 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Sept. 13, 2021, 9 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A 13.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Sept. 13, 2021, 8 a.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) 15.0 μg/m3 (58) 58.0
 
Sept. 13, 2021, 7 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) N/A 18.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
Sept. 13, 2021, 6 a.m. 6.5 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (34) N/A 20.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2021, 5 a.m. 9.6 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
Sept. 13, 2021, 4 a.m. 20.7 ppb (20) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 20.0 ppb (19) N/A 23.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2021, 3 a.m. 18.2 ppb (18) 0.4 ppb (1) N/A 18.0 ppb (17) N/A N/A 31.0 ppb (29) N/A 25.0 μg/m3 (24) 14.0 μg/m3 (55) 55.0
 
Sept. 13, 2021, 2 a.m. 14.0 ppb (14) 0.3 ppb (1) N/A 14.0 ppb (14) N/A N/A 44.0 ppb (41) N/A 15.0 μg/m3 (14) 14.0 μg/m3 (55) 55.0
 
Sept. 13, 2021, 1 a.m. 4.6 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (58) N/A 11.0 μg/m3 (11) 10.0 μg/m3 (42) 58.0
 
Sept. 13, 2021, midnight 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 68.0
 
Sept. 12, 2021, 11 p.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 68.0
 
Sept. 12, 2021, 10 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 65.0
 
Sept. 12, 2021, 9 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (71) N/A 20.0 μg/m3 (19) 13.0 μg/m3 (53) 71.0
 
Sept. 12, 2021, 8 p.m. 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (74) N/A 24.0 μg/m3 (23) 12.0 μg/m3 (50) 74.0
 
Sept. 12, 2021, 7 p.m. 4.5 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 61.0 ppb (71) N/A 21.0 μg/m3 (20) 12.0 μg/m3 (50) 71.0
 
Sept. 12, 2021, 6 p.m. 3.7 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 19.0 μg/m3 (18) 11.0 μg/m3 (46) 49.0
 
Sept. 12, 2021, 5 p.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A 22.0 μg/m3 (21) 7.0 μg/m3 (30) 40.0
 
Sept. 12, 2021, 4 p.m. 3.2 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A 23.0 μg/m3 (22) 15.0 μg/m3 (58) 58.0
 
Sept. 12, 2021, 3 p.m. 4.4 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 24.0 μg/m3 (23) 17.0 μg/m3 (62) 62.0
 
Sept. 12, 2021, 2 p.m. 6.6 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) N/A 16.0 μg/m3 (15) 13.0 μg/m3 (53) 53.0
 
Sept. 12, 2021, 1 p.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) N/A 19.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
Sept. 12, 2021, 11 a.m. 6.0 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) N/A 19.0 μg/m3 (18) 13.0 μg/m3 (53) 53.0
 
Sept. 12, 2021, 10 a.m. 6.1 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Sept. 12, 2021, 9 a.m. 6.3 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) N/A 19.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2021, 8 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) N/A 24.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2021, 7 a.m. 7.7 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) N/A 23.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
Sept. 12, 2021, 6 a.m. 10.4 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) N/A 24.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2021, 5 a.m. 13.8 ppb (14) 0.6 ppb (1) N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) N/A 32.0 μg/m3 (30) 14.0 μg/m3 (55) 55.0
 
Sept. 12, 2021, 4 a.m. 14.5 ppb (14) 0.5 ppb (1) N/A 14.0 ppb (14) N/A N/A 30.0 ppb (28) N/A 31.0 μg/m3 (29) 17.0 μg/m3 (62) 62.0
 
Sept. 12, 2021, 3 a.m. 23.4 ppb (23) 0.4 ppb (1) N/A 23.0 ppb (22) N/A N/A 31.0 ppb (29) N/A 30.0 μg/m3 (28) 16.0 μg/m3 (60) 60.0
 
Sept. 12, 2021, 2 a.m. 6.6 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A 57.0 ppb (58) N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 58.0
 
Sept. 12, 2021, 1 a.m. 4.3 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 59.0 ppb (65) N/A 23.0 μg/m3 (22) 11.0 μg/m3 (46) 65.0
 
Sept. 12, 2021, midnight 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) N/A 16.0 μg/m3 (15) 12.0 μg/m3 (50) 55.0
 
Sept. 11, 2021, 11 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (61) N/A 20.0 μg/m3 (19) 9.0 μg/m3 (38) 61.0
 
Sept. 11, 2021, 10 p.m. 3.8 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (71) N/A 27.0 μg/m3 (25) 11.0 μg/m3 (46) 71.0
 
Sept. 11, 2021, 9 p.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (74) N/A 30.0 μg/m3 (28) 13.0 μg/m3 (53) 74.0
 
Sept. 11, 2021, 8 p.m. 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 63.0 ppb (78) N/A 29.0 μg/m3 (27) 16.0 μg/m3 (60) 78.0
 
Sept. 11, 2021, 7 p.m. 4.6 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (50) N/A 37.0 μg/m3 (35) 14.0 μg/m3 (55) 55.0
 
Sept. 11, 2021, 6 p.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (44) N/A 31.0 μg/m3 (29) 15.0 μg/m3 (58) 58.0
 
Sept. 11, 2021, 5 p.m. 7.1 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) N/A 23.0 μg/m3 (22) 14.0 μg/m3 (55) 55.0
 
Sept. 11, 2021, 4 p.m. 9.2 ppb (9) 2.2 ppb (3) N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) N/A 25.0 μg/m3 (24) 13.0 μg/m3 (53) 53.0
 
Sept. 11, 2021, 3 p.m. 10.2 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A N/A 16.0 ppb (15) N/A 21.0 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
Sept. 11, 2021, 2 p.m. 12.2 ppb (12) 3.6 ppb (4) N/A 9.0 ppb (9) N/A N/A 8.0 ppb (8) N/A 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
Sept. 11, 2021, 1 p.m. 9.7 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 10.0 ppb (10) N/A 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Sept. 11, 2021, noon 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
 
Sept. 11, 2021, 11 a.m. 7.1 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (11) N/A 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Sept. 11, 2021, 10 a.m. 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (13) N/A 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0