ID: 2155

AQSQID: 060070008

Site Name: Chico - East

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

Updated: Dec. 2, 2020, 8:41 a.m.

Location: Chico (E Ave), CA

Reporting: True, Located: True

Current AQI: 72.0

Chico (E Ave) CA, US: 39.76168, -121.84047

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Dec. 2, 2020, 7 a.m. 20.9 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (16) N/A N/A 2.0 ppb (2) 0.52 ppb (6) 26.9 μg/m3 (25) 22.0 μg/m3 (72) 72.0
 
Dec. 2, 2020, 6 a.m. 27.6 ppb (27) 7.7 ppb (8) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 0.72 ppb (8) 46.6 μg/m3 (44) 35.0 μg/m3 (100) 100.0
 
Dec. 2, 2020, 5 a.m. 19.3 ppb (19) 2.8 ppb (3) N/A 17.0 ppb (17) N/A N/A 5.0 ppb (5) 0.51 ppb (6) 29.8 μg/m3 (28) 26.0 μg/m3 (81) 81.0
 
Dec. 2, 2020, 4 a.m. 16.4 ppb (16) 1.8 ppb (2) N/A 15.0 ppb (15) N/A N/A 10.0 ppb (10) 0.42 ppb (5) 32.7 μg/m3 (31) 20.0 μg/m3 (68) 68.0
 
Dec. 2, 2020, 3 a.m. 20.7 ppb (20) 3.0 ppb (3) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (10) 0.4 ppb (5) 39.7 μg/m3 (37) 22.0 μg/m3 (72) 72.0
 
Dec. 2, 2020, 2 a.m. 22.1 ppb (21) 2.8 ppb (3) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (11) 0.43 ppb (5) 55.2 μg/m3 (52) 17.0 μg/m3 (62) 62.0
 
Dec. 2, 2020, 1 a.m. 21.5 ppb (21) 3.0 ppb (3) N/A 19.0 ppb (18) N/A N/A 13.0 ppb (13) 0.46 ppb (6) 58.7 μg/m3 (53) 21.0 μg/m3 (70) 70.0
 
Dec. 2, 2020, midnight 18.4 ppb (18) 6.1 ppb (6) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) 0.32 ppb (4) 29.6 μg/m3 (28) 2.0 μg/m3 (9) 28.0
 
Dec. 1, 2020, 11 p.m. 4.1 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.15 ppb (2) 24.6 μg/m3 (23) 0.0 μg/m3 (0) 29.0
 
Dec. 1, 2020, 10 p.m. 3.9 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.13 ppb (2) 23.7 μg/m3 (22) 0.0 μg/m3 (0) 31.0
 
Dec. 1, 2020, 9 p.m. 4.8 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.12 ppb (2) 25.4 μg/m3 (24) N/A 30.0
 
Dec. 1, 2020, 8 p.m. 5.3 ppb (5) 2.4 ppb (3) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.12 ppb (2) 16.7 μg/m3 (16) -1.0 μg/m3 (0) 28.0
 
Dec. 1, 2020, 7 p.m. 6.0 ppb (6) 3.1 ppb (3) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) 0.11 ppb (2) 13.8 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
Dec. 1, 2020, 6 p.m. 8.9 ppb (9) 4.4 ppb (5) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.12 ppb (2) 9.7 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Dec. 1, 2020, 5 p.m. 23.6 ppb (23) 10.9 ppb (11) N/A 13.0 ppb (13) N/A N/A 14.0 ppb (13) 0.31 ppb (4) 20.4 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
Dec. 1, 2020, 4 p.m. 70.6 ppb (69) 50.9 ppb (49) N/A 20.0 ppb (19) N/A N/A 3.0 ppb (3) 0.95 ppb (11) 51.8 μg/m3 (48) 22.0 μg/m3 (72) 72.0
 
Dec. 1, 2020, 3 p.m. 70.1 ppb (69) 52.6 ppb (50) N/A 18.0 ppb (17) N/A N/A 0.0 ppb (0) 0.72 ppb (8) 32.9 μg/m3 (31) 15.0 μg/m3 (58) 69.0
 
Dec. 1, 2020, 2 p.m. 53.6 ppb (51) 35.6 ppb (34) N/A 18.0 ppb (17) N/A N/A 0.0 ppb (0) 0.56 ppb (7) 30.0 μg/m3 (28) 10.0 μg/m3 (42) 51.0
 
Dec. 1, 2020, 1 p.m. 23.6 ppb (23) 9.8 ppb (10) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) N/A 15.2 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
Dec. 1, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Dec. 1, 2020, 11 a.m. 17.7 ppb (17) 6.6 ppb (7) N/A 11.0 ppb (11) N/A N/A 2.0 ppb (2) 0.44 ppb (5) 25.5 μg/m3 (24) 16.0 μg/m3 (60) 60.0
 
Dec. 1, 2020, 10 a.m. 22.0 ppb (21) 9.4 ppb (9) N/A 13.0 ppb (13) N/A N/A 0.0 ppb (0) 0.64 ppb (7) 28.7 μg/m3 (27) 25.0 μg/m3 (79) 79.0
 
Dec. 1, 2020, 9 a.m. 23.0 ppb (22) 9.3 ppb (9) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) 0.69 ppb (8) 45.6 μg/m3 (43) 39.0 μg/m3 (110) 110.0
 
Dec. 1, 2020, 8 a.m. 31.3 ppb (30) 15.0 ppb (15) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 0.88 ppb (11) 54.3 μg/m3 (51) 47.0 μg/m3 (130) 130.0
 
Dec. 1, 2020, 7 a.m. 35.8 ppb (34) 19.7 ppb (19) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 0.95 ppb (11) 55.3 μg/m3 (52) 45.0 μg/m3 (125) 125.0
 
Dec. 1, 2020, 6 a.m. 34.3 ppb (33) 16.8 ppb (16) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.95 ppb (11) 63.4 μg/m3 (56) 48.0 μg/m3 (132) 132.0
 
Dec. 1, 2020, 5 a.m. 48.4 ppb (46) 28.0 ppb (27) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 1.23 ppb (14) 76.4 μg/m3 (62) 58.0 μg/m3 (153) 153.0
 
Dec. 1, 2020, 4 a.m. 48.1 ppb (46) 27.0 ppb (26) N/A 21.0 ppb (20) N/A N/A 2.0 ppb (2) 1.18 ppb (14) 78.4 μg/m3 (63) 59.0 μg/m3 (153) 153.0
 
Dec. 1, 2020, 3 a.m. 27.0 ppb (26) 7.4 ppb (7) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) 0.59 ppb (7) 38.9 μg/m3 (37) 23.0 μg/m3 (74) 74.0
 
Dec. 1, 2020, 2 a.m. 38.0 ppb (36) 13.4 ppb (13) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.84 ppb (10) 63.1 μg/m3 (56) 36.0 μg/m3 (103) 103.0
 
Dec. 1, 2020, 1 a.m. 32.5 ppb (31) 10.2 ppb (10) N/A 22.0 ppb (21) N/A N/A 6.0 ppb (6) 0.69 ppb (8) 53.9 μg/m3 (50) 22.0 μg/m3 (72) 72.0
 
Dec. 1, 2020, midnight 13.4 ppb (13) 1.1 ppb (2) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) 0.32 ppb (4) 32.5 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
Nov. 30, 2020, 11 p.m. 8.3 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) 0.23 ppb (3) 22.7 μg/m3 (22) 8.0 μg/m3 (34) 34.0
 
Nov. 30, 2020, 10 p.m. 7.6 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.21 ppb (3) 21.9 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
Nov. 30, 2020, 9 p.m. 5.9 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.17 ppb (3) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
Nov. 30, 2020, 8 p.m. 4.9 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) 0.16 ppb (3) 19.7 μg/m3 (19) 6.0 μg/m3 (25) 26.0
 
Nov. 30, 2020, 7 p.m. 6.1 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) 0.15 ppb (2) 19.6 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
Nov. 30, 2020, 6 p.m. 14.7 ppb (14) 7.1 ppb (7) N/A 8.0 ppb (8) N/A N/A 14.0 ppb (13) 0.25 ppb (3) 32.7 μg/m3 (31) 16.0 μg/m3 (60) 60.0
 
Nov. 30, 2020, 5 p.m. 43.3 ppb (41) 25.8 ppb (25) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) 0.57 ppb (7) 62.1 μg/m3 (55) 16.0 μg/m3 (60) 60.0
 
Nov. 30, 2020, 4 p.m. 51.3 ppb (49) 35.6 ppb (34) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 0.7 ppb (8) 56.2 μg/m3 (52) 21.0 μg/m3 (70) 70.0
 
Nov. 30, 2020, 3 p.m. 33.5 ppb (32) 21.4 ppb (21) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) 0.6 ppb (7) 52.8 μg/m3 (49) 27.0 μg/m3 (83) 83.0
 
Nov. 30, 2020, 2 p.m. 27.8 ppb (27) 16.5 ppb (16) N/A 11.0 ppb (11) N/A N/A 0.0 ppb (0) 0.5 ppb (6) 27.9 μg/m3 (26) 18.0 μg/m3 (64) 64.0
 
Nov. 30, 2020, 1 p.m. 19.9 ppb (19) 8.7 ppb (9) N/A 11.0 ppb (11) N/A N/A 0.0 ppb (0) 0.41 ppb (5) 30.5 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Nov. 30, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (20) 18.0 μg/m3 (64) 64.0
 
Nov. 30, 2020, 11 a.m. 17.0 ppb (17) 5.1 ppb (5) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) 0.48 ppb (6) 21.2 μg/m3 (20) 17.0 μg/m3 (62) 62.0
 
Nov. 30, 2020, 10 a.m. 16.5 ppb (16) 4.5 ppb (5) N/A 12.0 ppb (12) N/A N/A 1.0 ppb (1) 0.46 ppb (6) 24.5 μg/m3 (23) 17.0 μg/m3 (62) 62.0
 
Nov. 30, 2020, 9 a.m. 29.4 ppb (28) 15.9 ppb (15) N/A 14.0 ppb (14) N/A N/A 1.0 ppb (1) 0.8 ppb (10) 37.8 μg/m3 (35) 36.0 μg/m3 (103) 103.0
 
Nov. 30, 2020, 8 a.m. 28.3 ppb (27) 14.1 ppb (14) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) 0.75 ppb (10) 44.5 μg/m3 (42) 23.0 μg/m3 (74) 74.0
 
Nov. 30, 2020, 7 a.m. 27.9 ppb (27) 10.7 ppb (11) N/A 17.0 ppb (17) N/A N/A 0.0 ppb (0) 0.88 ppb (11) 47.5 μg/m3 (44) 39.0 μg/m3 (110) 110.0
 
Nov. 30, 2020, 6 a.m. 29.9 ppb (29) 12.9 ppb (13) N/A 17.0 ppb (17) N/A N/A 1.0 ppb (1) 0.9 ppb (11) 49.2 μg/m3 (46) 44.0 μg/m3 (122) 122.0
 
Nov. 30, 2020, 5 a.m. 43.1 ppb (41) 23.6 ppb (23) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 1.28 ppb (15) 82.0 μg/m3 (65) 68.0 μg/m3 (158) 158.0
 
Nov. 30, 2020, 4 a.m. 38.4 ppb (37) 17.5 ppb (17) N/A 21.0 ppb (20) N/A N/A 2.0 ppb (2) 1.36 ppb (16) 94.2 μg/m3 (71) 82.0 μg/m3 (165) 165.0
 
Nov. 30, 2020, 3 a.m. 40.7 ppb (39) 17.9 ppb (17) N/A 23.0 ppb (22) N/A N/A 1.0 ppb (1) 1.14 ppb (13) 95.5 μg/m3 (72) 71.0 μg/m3 (160) 160.0
 
Nov. 30, 2020, 2 a.m. 40.5 ppb (39) 15.7 ppb (15) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.91 ppb (11) 74.7 μg/m3 (61) 43.0 μg/m3 (120) 120.0
 
Nov. 30, 2020, 1 a.m. 35.9 ppb (34) 10.5 ppb (10) N/A 25.0 ppb (24) N/A N/A 3.0 ppb (3) 0.7 ppb (8) 59.4 μg/m3 (54) 32.0 μg/m3 (93) 93.0
 
Nov. 30, 2020, midnight 12.2 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 21.0 ppb (20) 0.32 ppb (4) 32.6 μg/m3 (31) 12.0 μg/m3 (50) 50.0
 
Nov. 29, 2020, 11 p.m. 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.17 ppb (3) 16.2 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
Nov. 29, 2020, 10 p.m. 5.1 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.17 ppb (3) 16.6 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
Nov. 29, 2020, 9 p.m. 6.8 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.19 ppb (3) 26.4 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
Nov. 29, 2020, 8 p.m. 8.6 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.22 ppb (3) 29.5 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
Nov. 29, 2020, 7 p.m. 8.2 ppb (8) 3.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.2 ppb (3) 19.3 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
Nov. 29, 2020, 6 p.m. 9.6 ppb (10) 4.4 ppb (5) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (19) 0.2 ppb (3) 26.1 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Nov. 29, 2020, 5 p.m. 13.8 ppb (14) 7.1 ppb (7) N/A 7.0 ppb (7) N/A N/A 13.0 ppb (13) 0.23 ppb (3) 21.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
Nov. 29, 2020, 4 p.m. 27.0 ppb (26) 16.2 ppb (16) N/A 11.0 ppb (11) N/A N/A 4.0 ppb (4) 0.39 ppb (5) 16.7 μg/m3 (16) 17.0 μg/m3 (62) 62.0
 
Nov. 29, 2020, 3 p.m. 48.6 ppb (46) 35.4 ppb (34) N/A 13.0 ppb (13) N/A N/A 0.0 ppb (0) 0.73 ppb (8) 34.3 μg/m3 (32) 26.0 μg/m3 (81) 81.0
 
Nov. 29, 2020, 2 p.m. 44.5 ppb (42) 31.9 ppb (31) N/A 13.0 ppb (13) N/A N/A 0.0 ppb (0) 0.78 ppb (10) 41.5 μg/m3 (39) 32.0 μg/m3 (93) 93.0
 
Nov. 29, 2020, 1 p.m. 38.6 ppb (37) 26.0 ppb (25) N/A 13.0 ppb (13) N/A N/A 0.0 ppb (0) N/A 42.3 μg/m3 (40) 25.0 μg/m3 (79) 79.0
 
Nov. 29, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 28.5 μg/m3 (27) 28.0 μg/m3 (85) 85.0
 
Nov. 29, 2020, 11 a.m. 37.4 ppb (36) 25.5 ppb (25) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) 1.0 ppb (12) 47.8 μg/m3 (45) 45.0 μg/m3 (125) 125.0
 
Nov. 29, 2020, 10 a.m. 37.6 ppb (36) 23.8 ppb (23) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) 1.04 ppb (12) 50.8 μg/m3 (48) 53.0 μg/m3 (145) 145.0
 
Nov. 29, 2020, 9 a.m. 37.7 ppb (36) 23.1 ppb (22) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) 1.22 ppb (14) 79.6 μg/m3 (64) 71.0 μg/m3 (160) 160.0
 
Nov. 29, 2020, 8 a.m. 36.1 ppb (35) 20.1 ppb (19) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 1.17 ppb (14) 72.6 μg/m3 (60) 71.0 μg/m3 (160) 160.0
 
Nov. 29, 2020, 7 a.m. 40.8 ppb (39) 24.4 ppb (24) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 1.13 ppb (13) 72.5 μg/m3 (60) 68.0 μg/m3 (158) 158.0
 
Nov. 29, 2020, 6 a.m. 42.8 ppb (41) 25.0 ppb (24) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 1.16 ppb (14) 79.5 μg/m3 (64) 63.0 μg/m3 (155) 155.0
 
Nov. 29, 2020, 5 a.m. 44.4 ppb (42) 24.8 ppb (24) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 1.04 ppb (12) 76.8 μg/m3 (62) 55.0 μg/m3 (150) 150.0
 
Nov. 29, 2020, 4 a.m. 37.8 ppb (36) 16.9 ppb (16) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 1.02 ppb (12) 66.7 μg/m3 (57) 52.0 μg/m3 (142) 142.0
 
Nov. 29, 2020, 3 a.m. 39.6 ppb (38) 16.5 ppb (16) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) 0.9 ppb (11) 65.3 μg/m3 (57) 39.0 μg/m3 (110) 110.0
 
Nov. 29, 2020, 2 a.m. 32.1 ppb (31) 10.3 ppb (10) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.65 ppb (8) 44.1 μg/m3 (41) 17.0 μg/m3 (62) 62.0
 
Nov. 29, 2020, 1 a.m. 30.7 ppb (29) 5.5 ppb (6) N/A 25.0 ppb (24) N/A N/A 2.0 ppb (2) 0.54 ppb (6) 72.7 μg/m3 (60) 17.0 μg/m3 (62) 62.0
 
Nov. 29, 2020, midnight 17.9 ppb (17) 4.7 ppb (5) N/A 13.0 ppb (13) N/A N/A 19.0 ppb (18) 0.3 ppb (4) 37.9 μg/m3 (36) 6.0 μg/m3 (25) 36.0
 
Nov. 28, 2020, 11 p.m. 2.7 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.14 ppb (2) 17.2 μg/m3 (16) 4.0 μg/m3 (17) 30.0
 
Nov. 28, 2020, 10 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.13 ppb (2) 13.8 μg/m3 (13) 4.0 μg/m3 (17) 29.0
 
Nov. 28, 2020, 9 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.13 ppb (2) 11.3 μg/m3 (11) 2.0 μg/m3 (9) 27.0
 
Nov. 28, 2020, 8 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (23) 0.12 ppb (2) 13.8 μg/m3 (13) 4.0 μg/m3 (17) 23.0
 
Nov. 28, 2020, 7 p.m. 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (20) 0.13 ppb (2) 15.2 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
Nov. 28, 2020, 6 p.m. 8.0 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (15) 0.2 ppb (3) 18.7 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
Nov. 28, 2020, 5 p.m. 10.0 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (11) 0.22 ppb (3) 28.4 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
Nov. 28, 2020, 4 p.m. 15.3 ppb (15) 6.7 ppb (7) N/A 9.0 ppb (9) N/A N/A 7.0 ppb (7) 0.27 ppb (4) 22.7 μg/m3 (22) 16.0 μg/m3 (60) 60.0
 
Nov. 28, 2020, 3 p.m. 25.4 ppb (24) 11.5 ppb (11) N/A 14.0 ppb (14) N/A N/A 1.0 ppb (1) 0.33 ppb (4) 21.3 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
Nov. 28, 2020, 2 p.m. 15.1 ppb (15) 3.3 ppb (4) N/A 12.0 ppb (12) N/A N/A 1.0 ppb (1) 0.27 ppb (4) 20.8 μg/m3 (20) 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 1 p.m. 8.6 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 6.0 ppb (6) N/A 16.9 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
Nov. 28, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.3 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Nov. 28, 2020, 11 a.m. 12.6 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 2.0 ppb (2) 0.29 ppb (4) 16.3 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
Nov. 28, 2020, 10 a.m. 10.7 ppb (11) 1.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 5.0 ppb (5) 0.28 ppb (4) 22.2 μg/m3 (21) 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 9 a.m. 8.3 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 8.0 ppb (8) 0.27 ppb (4) 18.3 μg/m3 (17) 17.0 μg/m3 (62) 62.0
 
Nov. 28, 2020, 8 a.m. 9.1 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 9.0 ppb (9) 0.36 ppb (5) 23.9 μg/m3 (23) 20.0 μg/m3 (68) 68.0
 
Nov. 28, 2020, 7 a.m. 5.4 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (14) 0.19 ppb (3) 8.7 μg/m3 (9) 8.0 μg/m3 (34) 34.0
 
Nov. 28, 2020, 6 a.m. 11.2 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 10.0 ppb (10) 0.31 ppb (4) 25.4 μg/m3 (24) 21.0 μg/m3 (70) 70.0
 
Nov. 28, 2020, 5 a.m. 14.1 ppb (14) 3.4 ppb (4) N/A 11.0 ppb (11) N/A N/A 8.0 ppb (8) 0.3 ppb (4) 25.9 μg/m3 (24) 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 4 a.m. 24.8 ppb (24) 6.1 ppb (6) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (4) 0.65 ppb (8) 59.4 μg/m3 (54) 44.0 μg/m3 (122) 122.0
 
Nov. 28, 2020, 3 a.m. 31.1 ppb (30) 8.1 ppb (8) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) 0.72 ppb (8) 54.3 μg/m3 (51) 34.0 μg/m3 (98) 98.0
 
Nov. 28, 2020, 2 a.m. 26.2 ppb (25) 4.2 ppb (4) N/A 22.0 ppb (21) N/A N/A 4.0 ppb (4) 0.61 ppb (7) 53.2 μg/m3 (50) 31.0 μg/m3 (91) 91.0
 
Nov. 28, 2020, 1 a.m. 20.0 ppb (19) 1.5 ppb (2) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (10) 0.54 ppb (6) 59.1 μg/m3 (54) 24.0 μg/m3 (77) 77.0
 
Nov. 28, 2020, midnight 10.4 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) 0.28 ppb (4) 36.8 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
Nov. 27, 2020, 11 p.m. 5.7 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) 0.19 ppb (3) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 27.0
 
Nov. 27, 2020, 10 p.m. 5.5 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.17 ppb (3) 20.2 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
Nov. 27, 2020, 9 p.m. 4.9 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.15 ppb (2) 21.0 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
Nov. 27, 2020, 8 p.m. 5.2 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.15 ppb (2) 19.4 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
Nov. 27, 2020, 7 p.m. 5.7 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) 0.14 ppb (2) 19.8 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
Nov. 27, 2020, 6 p.m. 9.0 ppb (9) 3.4 ppb (4) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.16 ppb (3) 18.6 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
Nov. 27, 2020, 5 p.m. 21.6 ppb (21) 9.1 ppb (9) N/A 13.0 ppb (13) N/A N/A 14.0 ppb (13) 0.32 ppb (4) 22.0 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
Nov. 27, 2020, 4 p.m. 54.8 ppb (52) 33.1 ppb (32) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.62 ppb (7) 41.9 μg/m3 (39) 12.0 μg/m3 (50) 52.0
 
Nov. 27, 2020, 3 p.m. 52.2 ppb (50) 31.4 ppb (30) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 0.67 ppb (8) 35.7 μg/m3 (34) 16.0 μg/m3 (60) 60.0
 
Nov. 27, 2020, 2 p.m. 31.2 ppb (30) 13.3 ppb (13) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.37 ppb (5) 12.6 μg/m3 (12) 5.0 μg/m3 (21) 30.0
 
Nov. 27, 2020, 1 p.m. 15.7 ppb (15) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 4.0 ppb (4) N/A 2.9 μg/m3 (3) 2.0 μg/m3 (9) 15.0
 
Nov. 27, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.4 μg/m3 (3) 1.0 μg/m3 (5) 5.0
 
Nov. 27, 2020, 11 a.m. 2.8 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) 0.1 ppb (2) 4.8 μg/m3 (5) 0.0 μg/m3 (0) 18.0
 
Nov. 27, 2020, 10 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) 0.11 ppb (2) 6.7 μg/m3 (7) 2.0 μg/m3 (9) 17.0
 
Nov. 27, 2020, 9 a.m. 7.6 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 10.0 ppb (10) 0.24 ppb (3) 7.2 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Nov. 27, 2020, 8 a.m. 6.2 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (13) 0.18 ppb (3) 7.1 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Nov. 27, 2020, 7 a.m. 8.0 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 11.0 ppb (11) 0.27 ppb (4) 11.5 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Nov. 27, 2020, 6 a.m. 16.3 ppb (16) 2.7 ppb (3) N/A 14.0 ppb (14) N/A N/A 4.0 ppb (4) 0.48 ppb (6) 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Nov. 27, 2020, 5 a.m. 14.5 ppb (14) 2.0 ppb (2) N/A 13.0 ppb (13) N/A N/A 6.0 ppb (6) 0.42 ppb (5) 29.5 μg/m3 (28) 17.0 μg/m3 (62) 62.0
 
Nov. 27, 2020, 4 a.m. 7.2 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 13.0 ppb (13) 0.25 ppb (3) 22.1 μg/m3 (21) 21.0 μg/m3 (70) 70.0
 
Nov. 27, 2020, 3 a.m. 6.3 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (14) 0.26 ppb (4) 12.4 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Nov. 27, 2020, 2 a.m. 4.6 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) 0.22 ppb (3) 13.4 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Nov. 27, 2020, 1 a.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) 0.14 ppb (2) 10.5 μg/m3 (10) -2.0 μg/m3 (0) 21.0
 
Nov. 27, 2020, midnight 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) 0.13 ppb (2) 7.8 μg/m3 (8) N/A 24.0
 
Nov. 26, 2020, 11 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) 0.13 ppb (2) 8.0 μg/m3 (8) N/A 25.0
 
Nov. 26, 2020, 10 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) 0.13 ppb (2) 5.4 μg/m3 (5) 1.0 μg/m3 (5) 26.0
 
Nov. 26, 2020, 9 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) 0.12 ppb (2) 6.9 μg/m3 (7) 0.0 μg/m3 (0) 25.0
 
Nov. 26, 2020, 8 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) 0.11 ppb (2) 7.4 μg/m3 (7) -2.0 μg/m3 (0) 25.0
 
Nov. 26, 2020, 7 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (24) 0.11 ppb (2) 6.6 μg/m3 (7) 0.0 μg/m3 (0) 24.0
 
Nov. 26, 2020, 6 p.m. 2.5 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (22) 0.11 ppb (2) 6.6 μg/m3 (7) 2.0 μg/m3 (9) 22.0
 
Nov. 26, 2020, 5 p.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (19) 0.11 ppb (2) 5.9 μg/m3 (6) 4.0 μg/m3 (17) 19.0
 
Nov. 26, 2020, 4 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (15) 0.11 ppb (2) 6.6 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Nov. 26, 2020, 3 p.m. 8.1 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (13) 0.16 ppb (3) 4.4 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Nov. 26, 2020, 2 p.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) 0.1 ppb (2) 7.6 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Nov. 26, 2020, 1 p.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) N/A 7.2 μg/m3 (7) 4.0 μg/m3 (17) 18.0
 
Nov. 26, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Nov. 26, 2020, 11 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) 0.11 ppb (2) 6.7 μg/m3 (7) 3.0 μg/m3 (13) 18.0
 
Nov. 26, 2020, 10 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) 0.1 ppb (2) 4.1 μg/m3 (4) 3.0 μg/m3 (13) 18.0
 
Nov. 26, 2020, 9 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) 0.1 ppb (2) 5.5 μg/m3 (6) 3.0 μg/m3 (13) 18.0
 
Nov. 26, 2020, 8 a.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (16) 0.13 ppb (2) 4.8 μg/m3 (5) 3.0 μg/m3 (13) 16.0
 
Nov. 26, 2020, 7 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) 0.13 ppb (2) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 17.0
 
Nov. 26, 2020, 6 a.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (19) 0.11 ppb (2) 4.3 μg/m3 (4) 0.0 μg/m3 (0) 19.0
 
Nov. 26, 2020, 5 a.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) 0.12 ppb (2) 5.1 μg/m3 (5) 3.0 μg/m3 (13) 20.0
 
Nov. 26, 2020, 4 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (22) 0.13 ppb (2) 7.1 μg/m3 (7) 3.0 μg/m3 (13) 22.0
 
Nov. 26, 2020, 3 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) 0.12 ppb (2) 9.5 μg/m3 (9) 2.0 μg/m3 (9) 24.0
 
Nov. 26, 2020, 2 a.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) 0.14 ppb (2) 10.3 μg/m3 (10) 3.0 μg/m3 (13) 22.0
 
Nov. 26, 2020, 1 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) 0.15 ppb (2) 20.5 μg/m3 (19) 3.0 μg/m3 (13) 25.0
 
Nov. 26, 2020, midnight 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) 0.15 ppb (2) 13.8 μg/m3 (13) 1.0 μg/m3 (5) 27.0
 
Nov. 25, 2020, 11 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.13 ppb (2) 11.5 μg/m3 (11) 2.0 μg/m3 (9) 28.0
 
Nov. 25, 2020, 10 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.13 ppb (2) 19.5 μg/m3 (19) 2.0 μg/m3 (9) 29.0
 
Nov. 25, 2020, 9 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.15 ppb (2) 24.3 μg/m3 (23) 2.0 μg/m3 (9) 29.0
 
Nov. 25, 2020, 8 p.m. 2.0 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.14 ppb (2) 19.3 μg/m3 (18) -1.0 μg/m3 (0) 29.0
 
Nov. 25, 2020, 7 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.13 ppb (2) 17.5 μg/m3 (17) -2.0 μg/m3 (0) 28.0
 
Nov. 25, 2020, 6 p.m. 2.1 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.11 ppb (2) 9.6 μg/m3 (9) 2.0 μg/m3 (9) 28.0
 
Nov. 25, 2020, 5 p.m. 3.7 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) 0.14 ppb (2) 14.3 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
Nov. 25, 2020, 4 p.m. 10.2 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A N/A 15.0 ppb (14) 0.24 ppb (3) 27.4 μg/m3 (26) 13.0 μg/m3 (53) 53.0
 
Nov. 25, 2020, 3 p.m. 12.5 ppb (12) 2.6 ppb (3) N/A 10.0 ppb (10) N/A N/A 8.0 ppb (8) 0.28 ppb (4) 27.7 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
Nov. 25, 2020, 2 p.m. 9.5 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 9.0 ppb (9) 0.24 ppb (3) 21.3 μg/m3 (20) 14.0 μg/m3 (55) 55.0
 
Nov. 25, 2020, 1 p.m. 7.3 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 12.0 ppb (12) N/A 28.1 μg/m3 (27) 20.0 μg/m3 (68) 68.0
 
Nov. 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.3 μg/m3 (23) 16.0 μg/m3 (60) 60.0
 
Nov. 25, 2020, 11 a.m. 5.1 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (19) 0.17 ppb (3) 27.5 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
Nov. 25, 2020, 10 a.m. 4.3 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.18 ppb (3) 23.8 μg/m3 (23) 14.0 μg/m3 (55) 55.0
 
Nov. 25, 2020, 9 a.m. 4.0 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) 0.17 ppb (3) 20.4 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
Nov. 25, 2020, 8 a.m. 5.4 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.21 ppb (3) 24.4 μg/m3 (23) 14.0 μg/m3 (55) 55.0