ID: 237

AQSQID: 061010003

Site Name: Yuba City

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

Updated: Oct. 19, 2021, 12:04 p.m.

Location: Yuba City (Almond St), CA

Reporting: True, Located: True

Current AQI: 50.0

Yuba City (Almond St) CA, US: 39.13868, -121.61884

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 19, 2021, 10 a.m. 20.0 ppb (19) 8.8 ppb (9) N/A 11.0 ppb (11) N/A N/A 2.0 ppb (2) N/A 10.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Oct. 19, 2021, 9 a.m. 16.5 ppb (16) 4.5 ppb (5) N/A 12.0 ppb (12) N/A N/A 3.0 ppb (3) N/A 9.0 μg/m3 (9) 12.0 μg/m3 (50) 50.0
 
Oct. 19, 2021, 8 a.m. 16.2 ppb (16) 3.6 ppb (4) N/A 13.0 ppb (13) N/A N/A 4.0 ppb (4) N/A 7.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
Oct. 19, 2021, 7 a.m. 15.4 ppb (15) 2.6 ppb (3) N/A 13.0 ppb (13) N/A N/A 6.0 ppb (6) N/A 10.0 μg/m3 (10) 15.0 μg/m3 (58) 58.0
 
Oct. 19, 2021, 6 a.m. 13.5 ppb (13) 2.4 ppb (3) N/A 11.0 ppb (11) N/A N/A 12.0 ppb (12) N/A 9.0 μg/m3 (9) 8.0 μg/m3 (34) 34.0
 
Oct. 19, 2021, 5 a.m. 19.4 ppb (19) 4.2 ppb (4) N/A 15.0 ppb (15) N/A N/A 12.0 ppb (12) N/A 16.0 μg/m3 (15) 17.0 μg/m3 (62) 62.0
 
Oct. 19, 2021, 4 a.m. 17.0 ppb (17) 2.2 ppb (3) N/A 15.0 ppb (15) N/A N/A 16.0 ppb (15) N/A 20.0 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
Oct. 19, 2021, 3 a.m. 16.6 ppb (16) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 20.0 ppb (19) N/A 27.0 μg/m3 (25) 14.0 μg/m3 (55) 55.0
 
Oct. 19, 2021, 2 a.m. 19.6 ppb (19) 2.9 ppb (3) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
Oct. 19, 2021, 1 a.m. 9.9 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 27.0
 
Oct. 19, 2021, midnight 5.7 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A 8.0 μg/m3 (8) 8.0 μg/m3 (34) 36.0
 
Oct. 18, 2021, 11 p.m. 5.3 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 37.0
 
Oct. 18, 2021, 10 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (34) 38.0
 
Oct. 18, 2021, 9 p.m. 3.9 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A 4.0 μg/m3 (4) 7.0 μg/m3 (30) 38.0
 
Oct. 18, 2021, 8 p.m. 3.5 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (34) 37.0
 
Oct. 18, 2021, 7 p.m. 4.6 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (34) 34.0
 
Oct. 18, 2021, 6 p.m. 6.0 ppb (6) 2.3 ppb (3) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 32.0
 
Oct. 18, 2021, 5 p.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) N/A 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Oct. 18, 2021, 4 p.m. 6.7 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Oct. 18, 2021, 3 p.m. 10.1 ppb (10) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) N/A 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Oct. 18, 2021, 2 p.m. 8.4 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Oct. 18, 2021, 1 p.m. 6.5 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) N/A 4.0 μg/m3 (4) 8.0 μg/m3 (34) 34.0
 
Oct. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 7.0 μg/m3 (30) 30.0
 
Oct. 18, 2021, 11 a.m. 5.6 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) N/A 1.0 μg/m3 (1) 6.0 μg/m3 (25) 25.0
 
Oct. 18, 2021, 10 a.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A 0.0 μg/m3 (0) 6.0 μg/m3 (25) 25.0
 
Oct. 18, 2021, 9 a.m. 4.0 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A 2.0 μg/m3 (2) 8.0 μg/m3 (34) 34.0
 
Oct. 18, 2021, 8 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 25.0
 
Oct. 18, 2021, 7 a.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 29.0
 
Oct. 18, 2021, 6 a.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 31.0
 
Oct. 18, 2021, 5 a.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A 2.0 μg/m3 (2) 7.0 μg/m3 (30) 32.0
 
Oct. 18, 2021, 4 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 6.0 μg/m3 (6) 8.0 μg/m3 (34) 34.0
 
Oct. 18, 2021, 3 a.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Oct. 18, 2021, 2 a.m. 2.2 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) 7.0 μg/m3 (30) 33.0
 
Oct. 18, 2021, 1 a.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 46.0 μg/m3 (43) 11.0 μg/m3 (46) 46.0
 
Oct. 18, 2021, midnight 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) N/A 39.0 μg/m3 (37) 5.0 μg/m3 (21) 46.0
 
Oct. 17, 2021, 11 p.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (51) N/A 45.0 μg/m3 (42) 6.0 μg/m3 (25) 51.0
 
Oct. 17, 2021, 10 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) N/A 63.0 μg/m3 (55) 10.0 μg/m3 (42) 55.0
 
Oct. 17, 2021, 9 p.m. 1.6 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) N/A 105.0 μg/m3 (76) 14.0 μg/m3 (55) 76.0
 
Oct. 17, 2021, 8 p.m. 1.6 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) N/A N/A 11.0 μg/m3 (46) 58.0
 
Oct. 17, 2021, 7 p.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) N/A 74.0 μg/m3 (61) 12.0 μg/m3 (50) 61.0
 
Oct. 17, 2021, 6 p.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (50) N/A 41.0 μg/m3 (38) 8.0 μg/m3 (34) 50.0
 
Oct. 17, 2021, 5 p.m. 4.8 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) N/A 39.0 μg/m3 (37) 10.0 μg/m3 (42) 44.0
 
Oct. 17, 2021, 4 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A 39.0 μg/m3 (37) 11.0 μg/m3 (46) 46.0
 
Oct. 17, 2021, 3 p.m. 5.6 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) N/A 27.0 μg/m3 (25) 16.0 μg/m3 (60) 60.0
 
Oct. 17, 2021, 2 p.m. 6.0 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (34) N/A 21.0 μg/m3 (20) 14.0 μg/m3 (55) 55.0
 
Oct. 17, 2021, 1 p.m. 4.3 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Oct. 17, 2021, noon 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
 
Oct. 17, 2021, 11 a.m. 12.4 ppb (12) 4.4 ppb (5) N/A 8.0 ppb (8) N/A N/A 40.0 ppb (38) N/A 20.0 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
Oct. 17, 2021, 10 a.m. 7.2 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) N/A 30.0 μg/m3 (28) 12.0 μg/m3 (50) 50.0
 
Oct. 17, 2021, 9 a.m. 6.0 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) N/A 24.0 μg/m3 (23) 16.0 μg/m3 (60) 60.0
 
Oct. 17, 2021, 8 a.m. 7.3 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) N/A 22.0 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Oct. 17, 2021, 7 a.m. 8.4 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 39.0 ppb (37) N/A 24.0 μg/m3 (23) 13.0 μg/m3 (53) 53.0
 
Oct. 17, 2021, 6 a.m. 5.6 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 34.0 μg/m3 (32) 16.0 μg/m3 (60) 60.0
 
Oct. 17, 2021, 5 a.m. 10.8 ppb (11) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 37.0 ppb (35) N/A 43.0 μg/m3 (40) 19.0 μg/m3 (66) 66.0
 
Oct. 17, 2021, 4 a.m. 16.2 ppb (16) 0.9 ppb (1) N/A 15.0 ppb (15) N/A N/A 30.0 ppb (28) N/A 67.0 μg/m3 (57) 20.0 μg/m3 (68) 68.0
 
Oct. 17, 2021, 3 a.m. 21.6 ppb (21) 1.4 ppb (2) N/A 20.0 ppb (19) N/A N/A 28.0 ppb (26) N/A 60.0 μg/m3 (54) 24.0 μg/m3 (77) 77.0
 
Oct. 17, 2021, 2 a.m. 31.0 ppb (30) 2.7 ppb (3) N/A 28.0 ppb (27) N/A N/A 23.0 ppb (22) N/A 54.0 μg/m3 (50) 25.0 μg/m3 (79) 79.0
 
Oct. 17, 2021, 1 a.m. 14.6 ppb (14) 1.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 41.0 ppb (38) N/A 54.0 μg/m3 (50) 26.0 μg/m3 (81) 81.0
 
Oct. 17, 2021, midnight 3.6 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) N/A 46.0 μg/m3 (43) 15.0 μg/m3 (58) 58.0
 
Oct. 16, 2021, 11 p.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) N/A 40.0 μg/m3 (38) 17.0 μg/m3 (62) 62.0
 
Oct. 16, 2021, 10 p.m. 4.1 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 59.0 ppb (65) N/A 47.0 μg/m3 (44) 21.0 μg/m3 (70) 70.0
 
Oct. 16, 2021, 9 p.m. 6.2 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (51) N/A 49.0 μg/m3 (46) 23.0 μg/m3 (74) 74.0
 
Oct. 16, 2021, 8 p.m. 7.0 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (47) N/A 52.0 μg/m3 (49) 16.0 μg/m3 (60) 60.0
 
Oct. 16, 2021, 7 p.m. 5.1 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 38.0 μg/m3 (36) 20.0 μg/m3 (68) 68.0
 
Oct. 16, 2021, 6 p.m. 7.1 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A 44.0 μg/m3 (41) 17.0 μg/m3 (62) 62.0
 
Oct. 16, 2021, 5 p.m. 11.3 ppb (11) 3.2 ppb (4) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) N/A 30.0 μg/m3 (28) 16.0 μg/m3 (60) 60.0
 
Oct. 16, 2021, 4 p.m. 12.3 ppb (12) 3.5 ppb (4) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) N/A 29.0 μg/m3 (27) 18.0 μg/m3 (64) 64.0
 
Oct. 16, 2021, 3 p.m. 23.1 ppb (22) 6.9 ppb (7) N/A 16.0 ppb (16) N/A N/A 13.0 ppb (13) N/A 33.0 μg/m3 (31) 18.0 μg/m3 (64) 64.0
 
Oct. 16, 2021, 2 p.m. 28.4 ppb (27) 8.1 ppb (8) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (5) N/A 61.0 μg/m3 (54) 12.0 μg/m3 (50) 54.0
 
Oct. 16, 2021, 1 p.m. 27.2 ppb (26) 8.3 ppb (8) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (3) N/A 31.0 μg/m3 (29) 19.0 μg/m3 (66) 66.0
 
Oct. 16, 2021, noon 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
 
Oct. 16, 2021, 11 a.m. 17.3 ppb (17) 3.8 ppb (4) N/A 14.0 ppb (14) N/A N/A 7.0 ppb (7) N/A 32.0 μg/m3 (30) 17.0 μg/m3 (62) 62.0
 
Oct. 16, 2021, 10 a.m. 14.6 ppb (14) 2.4 ppb (3) N/A 12.0 ppb (12) N/A N/A 7.0 ppb (7) N/A 36.0 μg/m3 (34) 22.0 μg/m3 (72) 72.0
 
Oct. 16, 2021, 9 a.m. 14.3 ppb (14) 2.2 ppb (3) N/A 12.0 ppb (12) N/A N/A 9.0 ppb (9) N/A 31.0 μg/m3 (29) 18.0 μg/m3 (64) 64.0
 
Oct. 16, 2021, 8 a.m. 20.5 ppb (20) 4.1 ppb (4) N/A 16.0 ppb (16) N/A N/A 9.0 ppb (9) N/A 32.0 μg/m3 (30) N/A 30.0
 
Oct. 16, 2021, 7 a.m. 27.6 ppb (27) 7.1 ppb (7) N/A 21.0 ppb (20) N/A N/A 4.0 ppb (4) N/A 43.0 μg/m3 (40) 19.0 μg/m3 (66) 66.0
 
Oct. 16, 2021, 6 a.m. 20.2 ppb (20) 2.9 ppb (3) N/A 17.0 ppb (17) N/A N/A 9.0 ppb (9) N/A 49.0 μg/m3 (46) 19.0 μg/m3 (66) 66.0
 
Oct. 16, 2021, 5 a.m. 47.1 ppb (45) 22.8 ppb (22) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) N/A 81.0 μg/m3 (64) 19.0 μg/m3 (66) 66.0
 
Oct. 16, 2021, 4 a.m. 55.5 ppb (53) 28.6 ppb (27) N/A 27.0 ppb (26) N/A N/A 2.0 ppb (2) N/A 72.0 μg/m3 (60) 23.0 μg/m3 (74) 74.0
 
Oct. 16, 2021, 3 a.m. 68.0 ppb (66) 30.0 ppb (29) N/A 38.0 ppb (36) N/A N/A 2.0 ppb (2) N/A 76.0 μg/m3 (62) 32.0 μg/m3 (93) 93.0
 
Oct. 16, 2021, 2 a.m. 55.2 ppb (53) 16.0 ppb (16) N/A 39.0 ppb (37) N/A N/A 3.0 ppb (3) N/A 52.0 μg/m3 (49) 19.0 μg/m3 (66) 66.0
 
Oct. 16, 2021, 1 a.m. 36.2 ppb (35) 9.6 ppb (10) N/A 27.0 ppb (26) N/A N/A 21.0 ppb (20) N/A 38.0 μg/m3 (36) 18.0 μg/m3 (64) 64.0
 
Oct. 16, 2021, midnight 6.6 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (42) N/A 29.0 μg/m3 (27) 17.0 μg/m3 (62) 62.0
 
Oct. 15, 2021, 11 p.m. 3.5 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) N/A 23.0 μg/m3 (22) 15.0 μg/m3 (58) 58.0
 
Oct. 15, 2021, 10 p.m. 5.1 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) N/A 33.0 μg/m3 (31) 14.0 μg/m3 (55) 55.0
 
Oct. 15, 2021, 9 p.m. 7.9 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 47.0 ppb (44) N/A 33.0 μg/m3 (31) 15.0 μg/m3 (58) 58.0
 
Oct. 15, 2021, 8 p.m. 6.2 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (43) N/A 34.0 μg/m3 (32) 22.0 μg/m3 (72) 72.0
 
Oct. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 22.0 μg/m3 (72) 72.0
 
Oct. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 15, 2021, 8 a.m. 22.4 ppb (22) 2.7 ppb (3) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (8) N/A 30.0 μg/m3 (28) 18.0 μg/m3 (64) 64.0
 
Oct. 15, 2021, 7 a.m. 16.3 ppb (16) 1.8 ppb (2) N/A 15.0 ppb (15) N/A N/A 13.0 ppb (13) N/A 22.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 6 a.m. 7.7 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) N/A 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 5 a.m. 14.8 ppb (14) 1.2 ppb (2) N/A 14.0 ppb (14) N/A N/A 16.0 ppb (15) N/A 19.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
Oct. 15, 2021, 4 a.m. 10.2 ppb (10) 0.8 ppb (1) N/A 9.0 ppb (9) N/A N/A 23.0 ppb (22) N/A 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Oct. 15, 2021, 3 a.m. 5.3 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) N/A 23.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 2 a.m. 7.0 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 31.0 ppb (29) N/A 23.0 μg/m3 (22) 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 1 a.m. 4.9 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) N/A 24.0 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
Oct. 15, 2021, midnight 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A 19.0 μg/m3 (18) 14.0 μg/m3 (55) 55.0
 
Oct. 14, 2021, 11 p.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 18.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
Oct. 14, 2021, 10 p.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 32.0 μg/m3 (30) 21.0 μg/m3 (70) 70.0
 
Oct. 14, 2021, 9 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 24.0 μg/m3 (23) 13.0 μg/m3 (53) 53.0
 
Oct. 14, 2021, 8 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 34.0 μg/m3 (32) 13.0 μg/m3 (53) 53.0
 
Oct. 14, 2021, 7 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 83.0 μg/m3 (65) 14.0 μg/m3 (55) 65.0
 
Oct. 14, 2021, 6 p.m. 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 37.0 μg/m3 (35) 15.0 μg/m3 (58) 58.0
 
Oct. 14, 2021, 5 p.m. 3.1 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 49.0 μg/m3 (46) 14.0 μg/m3 (55) 55.0
 
Oct. 14, 2021, 4 p.m. 5.1 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A 43.0 μg/m3 (40) 14.0 μg/m3 (55) 55.0
 
Oct. 14, 2021, 3 p.m. 8.1 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) N/A 28.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
Oct. 14, 2021, 2 p.m. 23.5 ppb (23) 7.2 ppb (7) N/A 16.0 ppb (16) N/A N/A 9.0 ppb (9) N/A 33.0 μg/m3 (31) 15.0 μg/m3 (58) 58.0
 
Oct. 14, 2021, 1 p.m. 24.1 ppb (23) 6.3 ppb (6) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (3) N/A 17.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Oct. 14, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Oct. 14, 2021, 11 a.m. 8.3 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 16.0 ppb (15) N/A 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
Oct. 14, 2021, 10 a.m. 4.8 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) N/A 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Oct. 14, 2021, 9 a.m. 15.2 ppb (15) 2.7 ppb (3) N/A 13.0 ppb (13) N/A N/A 11.0 ppb (11) N/A 35.0 μg/m3 (33) 17.0 μg/m3 (62) 62.0
 
Oct. 14, 2021, 8 a.m. 27.1 ppb (26) 7.0 ppb (7) N/A 20.0 ppb (19) N/A N/A 3.0 ppb (3) N/A 53.0 μg/m3 (50) 16.0 μg/m3 (60) 60.0
 
Oct. 14, 2021, 7 a.m. 36.5 ppb (35) 14.0 ppb (14) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) N/A 41.0 μg/m3 (38) 17.0 μg/m3 (62) 62.0
 
Oct. 14, 2021, 6 a.m. 45.0 ppb (43) 18.8 ppb (18) N/A 26.0 ppb (25) N/A N/A 2.0 ppb (2) N/A 41.0 μg/m3 (38) 22.0 μg/m3 (72) 72.0
 
Oct. 14, 2021, 5 a.m. 46.6 ppb (44) 18.6 ppb (18) N/A 28.0 ppb (27) N/A N/A 2.0 ppb (2) N/A 47.0 μg/m3 (44) 18.0 μg/m3 (64) 64.0
 
Oct. 14, 2021, 4 a.m. 62.8 ppb (61) 30.8 ppb (30) N/A 32.0 ppb (31) N/A N/A 2.0 ppb (2) N/A 37.0 μg/m3 (35) 23.0 μg/m3 (74) 74.0
 
Oct. 14, 2021, 3 a.m. 51.0 ppb (49) 17.9 ppb (17) N/A 33.0 ppb (32) N/A N/A 2.0 ppb (2) N/A 41.0 μg/m3 (38) 28.0 μg/m3 (85) 85.0
 
Oct. 14, 2021, 2 a.m. 37.3 ppb (36) 8.1 ppb (8) N/A 29.0 ppb (28) N/A N/A 9.0 ppb (9) N/A 41.0 μg/m3 (38) 24.0 μg/m3 (77) 77.0
 
Oct. 14, 2021, 1 a.m. 15.8 ppb (15) 1.8 ppb (2) N/A 14.0 ppb (14) N/A N/A 29.0 ppb (27) N/A 35.0 μg/m3 (33) 16.0 μg/m3 (60) 60.0
 
Oct. 14, 2021, midnight 5.5 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) N/A 20.0 μg/m3 (19) 21.0 μg/m3 (70) 70.0
 
Oct. 13, 2021, 11 p.m. 6.5 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A 22.0 μg/m3 (21) 22.0 μg/m3 (72) 72.0
 
Oct. 13, 2021, 10 p.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A 25.0 μg/m3 (24) 19.0 μg/m3 (66) 66.0
 
Oct. 13, 2021, 9 p.m. 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A 31.0 μg/m3 (29) 22.0 μg/m3 (72) 72.0
 
Oct. 13, 2021, 8 p.m. 4.9 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 27.0 μg/m3 (25) 28.0 μg/m3 (85) 85.0
 
Oct. 13, 2021, 7 p.m. 5.0 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A 30.0 μg/m3 (28) 28.0 μg/m3 (85) 85.0
 
Oct. 13, 2021, 6 p.m. 5.2 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) N/A 35.0 μg/m3 (33) 45.0 μg/m3 (125) 125.0
 
Oct. 13, 2021, 5 p.m. 6.0 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) N/A 52.0 μg/m3 (49) 62.0 μg/m3 (155) 155.0
 
Oct. 13, 2021, 4 p.m. 7.6 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (21) N/A N/A N/A 21.0
 
Oct. 13, 2021, 3 p.m. 11.7 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (10) N/A N/A 17.0 ppb (16) N/A 25.0 μg/m3 (24) 11.0 μg/m3 (46) 46.0
 
Oct. 13, 2021, 2 p.m. 10.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 17.0 ppb (16) N/A 22.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Oct. 13, 2021, 1 p.m. 7.8 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 17.0 ppb (16) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Oct. 13, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Oct. 13, 2021, 11 a.m. 18.7 ppb (18) 9.7 ppb (10) N/A 9.0 ppb (9) N/A N/A 14.0 ppb (13) N/A 16.0 μg/m3 (15) 13.0 μg/m3 (53) 53.0
 
Oct. 13, 2021, 10 a.m. 6.3 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A 9.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Oct. 13, 2021, 9 a.m. 8.3 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 16.0 ppb (15) N/A 13.0 μg/m3 (13) 14.0 μg/m3 (55) 55.0
 
Oct. 13, 2021, 8 a.m. 9.2 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 16.0 ppb (15) N/A 16.0 μg/m3 (15) 18.0 μg/m3 (64) 64.0
 
Oct. 13, 2021, 7 a.m. 10.0 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 17.0 ppb (16) N/A 24.0 μg/m3 (23) 23.0 μg/m3 (74) 74.0
 
Oct. 13, 2021, 6 a.m. 20.9 ppb (20) 2.5 ppb (3) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (7) N/A 31.0 μg/m3 (29) 25.0 μg/m3 (79) 79.0
 
Oct. 13, 2021, 5 a.m. 25.7 ppb (25) 5.0 ppb (5) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) N/A 26.0 μg/m3 (25) 25.0 μg/m3 (79) 79.0
 
Oct. 13, 2021, 4 a.m. 23.5 ppb (23) 3.6 ppb (4) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (8) N/A 30.0 μg/m3 (28) 12.0 μg/m3 (50) 50.0
 
Oct. 13, 2021, 3 a.m. 18.2 ppb (18) 1.4 ppb (2) N/A 17.0 ppb (17) N/A N/A 15.0 ppb (14) N/A 36.0 μg/m3 (34) 13.0 μg/m3 (53) 53.0
 
Oct. 13, 2021, 2 a.m. 19.3 ppb (19) 2.1 ppb (2) N/A 17.0 ppb (17) N/A N/A 15.0 ppb (14) N/A 36.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
Oct. 13, 2021, 1 a.m. 6.8 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) N/A 31.0 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
Oct. 13, 2021, midnight 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A 30.0 μg/m3 (28) 8.0 μg/m3 (34) 34.0
 
Oct. 12, 2021, 11 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) N/A 24.0 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
Oct. 12, 2021, 10 p.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 25.0 μg/m3 (24) 7.0 μg/m3 (30) 33.0
 
Oct. 12, 2021, 9 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A 26.0 μg/m3 (25) 7.0 μg/m3 (30) 33.0
 
Oct. 12, 2021, 8 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A 30.0 μg/m3 (28) 5.0 μg/m3 (21) 32.0
 
Oct. 12, 2021, 7 p.m. 2.2 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 34.0 μg/m3 (32) 8.0 μg/m3 (34) 34.0
 
Oct. 12, 2021, 6 p.m. 2.4 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) N/A 33.0 μg/m3 (31) 10.0 μg/m3 (42) 42.0
 
Oct. 12, 2021, 5 p.m. 2.6 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 47.0 μg/m3 (44) 9.0 μg/m3 (38) 44.0
 
Oct. 12, 2021, 4 p.m. 3.3 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) N/A 44.0 μg/m3 (41) 7.0 μg/m3 (30) 41.0
 
Oct. 12, 2021, 3 p.m. 3.3 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A 30.0 μg/m3 (28) 2.0 μg/m3 (9) 28.0
 
Oct. 12, 2021, 2 p.m. 2.9 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A 8.0 μg/m3 (8) 3.0 μg/m3 (13) 24.0
 
Oct. 12, 2021, 1 p.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 12, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 7.0 μg/m3 (30) 30.0
 
Oct. 12, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 26.0
 
Oct. 12, 2021, 10 a.m. 0.6 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (13) 27.0
 
Oct. 12, 2021, 9 a.m. 0.5 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) N/A 8.0 μg/m3 (8) 7.0 μg/m3 (30) 30.0
 
Oct. 12, 2021, 8 a.m. 0.5 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 29.0
 
Oct. 12, 2021, 7 a.m. 0.5 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A 7.0 μg/m3 (7) 6.0 μg/m3 (25) 31.0
 
Oct. 12, 2021, 6 a.m. 0.6 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A 10.0 μg/m3 (10) 7.0 μg/m3 (30) 32.0
 
Oct. 12, 2021, 5 a.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 32.0
 
Oct. 12, 2021, 4 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 31.0
 
Oct. 12, 2021, 3 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 31.0
 
Oct. 12, 2021, 2 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A 22.0 μg/m3 (21) 6.0 μg/m3 (25) 32.0