AQSQID: 000100202

Site Name: Prg Plaza 400

Location: Prince George (Civic Centre), CC

Reporting: True, Located: True

Current AQI: 56.0

Prince George (Civic Centre) CC, CA: 53.9147, -122.7419

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2020, 3 p.m. N/A 22.0 ppb (20) N/A 21.0 ppb (19) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 14.6 μg/m3 (56) 56.0
 
Jan. 21, 2020, 2 p.m. N/A 7.6 ppb (7) N/A 16.0 ppb (15) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 21, 2020, 1 p.m. N/A 6.7 ppb (6) N/A 16.0 ppb (15) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 21, 2020, noon N/A 22.0 ppb (20) N/A 18.0 ppb (17) N/A 4.0 ppb (6) 1.0 ppb (1) N/A N/A 19.9 μg/m3 (67) 67.0
 
Jan. 21, 2020, 11 a.m. N/A 15.0 ppb (14) N/A 17.0 ppb (16) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 21.2 μg/m3 (70) 70.0
 
Jan. 21, 2020, 10 a.m. N/A 27.4 ppb (25) N/A 20.0 ppb (19) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 27.2 μg/m3 (82) 82.0
 
Jan. 21, 2020, 9 a.m. N/A 36.7 ppb (34) N/A 22.0 ppb (20) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 28.5 μg/m3 (85) 85.0
 
Jan. 21, 2020, 8 a.m. N/A 32.2 ppb (30) N/A 21.0 ppb (19) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 23.9 μg/m3 (75) 75.0
 
Jan. 21, 2020, 7 a.m. N/A 24.1 ppb (22) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 16.7 μg/m3 (60) 60.0
 
Jan. 21, 2020, 6 a.m. N/A 18.4 ppb (17) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 11.8 μg/m3 (49) 49.0
 
Jan. 21, 2020, 5 a.m. N/A 43.1 ppb (40) N/A 26.0 ppb (24) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 14.9 μg/m3 (56) 56.0
 
Jan. 21, 2020, 4 a.m. N/A 48.7 ppb (45) N/A 30.0 ppb (28) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 22.8 μg/m3 (73) 73.0
 
Jan. 21, 2020, 3 a.m. N/A 50.6 ppb (47) N/A 33.0 ppb (31) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 15.8 μg/m3 (58) 58.0
 
Jan. 21, 2020, 2 a.m. N/A 68.2 ppb (65) N/A 40.0 ppb (37) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 14.0 μg/m3 (54) 65.0
 
Jan. 21, 2020, 1 a.m. N/A 50.2 ppb (46) N/A 35.0 ppb (32) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.5 μg/m3 (40) 46.0
 
Jan. 21, 2020, midnight N/A 1.7 ppb (2) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 20, 2020, 11 p.m. N/A 1.9 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 3.1 μg/m3 (13) 22.0
 
Jan. 20, 2020, 10 p.m. N/A 2.7 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
Jan. 20, 2020, 9 p.m. N/A 3.8 ppb (4) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 1.9 μg/m3 (8) 21.0
 
Jan. 20, 2020, 8 p.m. N/A 2.1 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 31.0 ppb (24) N/A N/A 2.3 μg/m3 (10) 24.0
 
Jan. 20, 2020, 7 p.m. N/A 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 1.7 μg/m3 (7) 25.0
 
Jan. 20, 2020, 6 p.m. N/A 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
Jan. 20, 2020, 4 p.m. N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 33.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
Jan. 20, 2020, 3 p.m. N/A 0.2 ppb (0) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 33.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
Jan. 20, 2020, 2 p.m. N/A 1.2 ppb (1) N/A 4.0 ppb (4) N/A 5.0 ppb (7) 32.0 ppb (25) N/A N/A 1.2 μg/m3 (5) 25.0
 
Jan. 20, 2020, 1 p.m. N/A 3.9 ppb (4) N/A 11.0 ppb (10) N/A 14.0 ppb (20) 19.0 ppb (15) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, noon N/A 1.6 ppb (1) N/A 14.0 ppb (13) N/A 12.0 ppb (17) 10.0 ppb (8) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 20, 2020, 11 a.m. N/A 1.3 ppb (1) N/A 13.0 ppb (12) N/A 9.0 ppb (13) 10.0 ppb (8) N/A N/A 7.8 μg/m3 (32) 32.0
 
Jan. 20, 2020, 10 a.m. N/A 2.2 ppb (2) N/A 13.0 ppb (12) N/A 10.0 ppb (14) 11.0 ppb (8) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 20, 2020, 9 a.m. N/A 0.8 ppb (1) N/A 12.0 ppb (11) N/A 8.0 ppb (11) 11.0 ppb (8) N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 20, 2020, 8 a.m. N/A 1.6 ppb (1) N/A 12.0 ppb (11) N/A 7.0 ppb (10) 10.0 ppb (8) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 20, 2020, 7 a.m. N/A 0.8 ppb (1) N/A 10.0 ppb (9) N/A 10.0 ppb (14) 12.0 ppb (9) N/A N/A 10.5 μg/m3 (44) 44.0
 
Jan. 20, 2020, 6 a.m. N/A 3.3 ppb (3) N/A 14.0 ppb (13) N/A 8.0 ppb (11) 9.0 ppb (7) N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 20, 2020, 5 a.m. N/A 1.7 ppb (2) N/A 15.0 ppb (14) N/A 9.0 ppb (13) 8.0 ppb (6) N/A N/A 21.6 μg/m3 (70) 70.0
 
Jan. 20, 2020, 4 a.m. N/A 1.2 ppb (1) N/A 13.0 ppb (12) N/A 6.0 ppb (9) 9.0 ppb (7) N/A N/A 26.3 μg/m3 (80) 80.0
 
Jan. 20, 2020, 3 a.m. N/A 3.9 ppb (4) N/A 16.0 ppb (15) N/A 6.0 ppb (9) 7.0 ppb (5) N/A N/A 22.1 μg/m3 (71) 71.0
 
Jan. 20, 2020, 2 a.m. N/A 2.9 ppb (3) N/A 18.0 ppb (17) N/A 5.0 ppb (7) 10.0 ppb (8) N/A N/A 12.4 μg/m3 (51) 51.0
 
Jan. 20, 2020, 1 a.m. N/A 0.1 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 29.0 ppb (22) N/A N/A 3.3 μg/m3 (14) 22.0
 
Jan. 20, 2020, midnight N/A 0.3 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 32.0 ppb (25) N/A N/A 2.1 μg/m3 (9) 25.0
 
Jan. 19, 2020, 11 p.m. N/A 0.6 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 31.0 ppb (24) N/A N/A 2.2 μg/m3 (9) 24.0
 
Jan. 19, 2020, 10 p.m. N/A 0.8 ppb (1) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 30.0 ppb (23) N/A N/A 2.1 μg/m3 (9) 23.0
 
Jan. 19, 2020, 9 p.m. N/A 0.9 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 31.0 ppb (24) N/A N/A 2.3 μg/m3 (10) 24.0
 
Jan. 19, 2020, 8 p.m. N/A 0.9 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 32.0 ppb (25) N/A N/A 2.3 μg/m3 (10) 25.0
 
Jan. 19, 2020, 7 p.m. N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (4) 32.0 ppb (25) N/A N/A 2.5 μg/m3 (10) 25.0
 
Jan. 19, 2020, 6 p.m. N/A 0.5 ppb (0) N/A 3.0 ppb (3) N/A 4.0 ppb (6) 31.0 ppb (24) N/A N/A 2.6 μg/m3 (11) 24.0
 
Jan. 19, 2020, 5 p.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 3.0 μg/m3 (12) 23.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A 10.0 ppb (14) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 19, 2020, 3 p.m. N/A 1.2 ppb (1) N/A 13.0 ppb (12) N/A 9.0 ppb (13) 12.0 ppb (9) N/A N/A 13.4 μg/m3 (53) 53.0
 
Jan. 19, 2020, 2 p.m. N/A 1.4 ppb (1) N/A 15.0 ppb (14) N/A 8.0 ppb (11) 11.0 ppb (8) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 19, 2020, 1 p.m. N/A 2.9 ppb (3) N/A 16.0 ppb (15) N/A 6.0 ppb (9) 11.0 ppb (8) N/A N/A 16.9 μg/m3 (60) 60.0
 
Jan. 19, 2020, noon N/A 15.6 ppb (14) N/A 26.0 ppb (24) N/A 5.0 ppb (7) 3.0 ppb (2) N/A N/A 22.4 μg/m3 (72) 72.0
 
Jan. 19, 2020, 11 a.m. N/A 25.6 ppb (24) N/A 30.0 ppb (28) N/A 6.0 ppb (9) 1.0 ppb (1) N/A N/A 32.4 μg/m3 (93) 93.0
 
Jan. 19, 2020, 10 a.m. N/A 32.9 ppb (30) N/A 31.0 ppb (29) N/A 7.0 ppb (10) 0.0 ppb (0) N/A N/A 32.8 μg/m3 (94) 94.0
 
Jan. 19, 2020, 9 a.m. N/A 44.2 ppb (41) N/A 32.0 ppb (30) N/A 7.0 ppb (10) 0.0 ppb (0) N/A N/A 36.4 μg/m3 (102) 102.0
 
Jan. 19, 2020, 8 a.m. N/A 59.3 ppb (56) N/A 34.0 ppb (31) N/A 6.0 ppb (9) 1.0 ppb (1) N/A N/A 43.4 μg/m3 (120) 120.0
 
Jan. 19, 2020, 7 a.m. N/A 74.5 ppb (72) N/A 33.0 ppb (31) N/A 5.0 ppb (7) 1.0 ppb (1) N/A N/A 25.2 μg/m3 (78) 78.0
 
Jan. 19, 2020, 6 a.m. N/A 53.7 ppb (50) N/A 31.0 ppb (29) N/A 4.0 ppb (6) 1.0 ppb (1) N/A N/A 23.7 μg/m3 (75) 75.0
 
Jan. 19, 2020, 5 a.m. N/A 48.4 ppb (45) N/A 30.0 ppb (28) N/A 4.0 ppb (6) 1.0 ppb (1) N/A N/A 20.9 μg/m3 (69) 69.0
 
Jan. 19, 2020, 4 a.m. N/A 66.9 ppb (64) N/A 33.0 ppb (31) N/A 5.0 ppb (7) 1.0 ppb (1) N/A N/A 24.0 μg/m3 (76) 76.0
 
Jan. 19, 2020, 3 a.m. N/A 52.0 ppb (48) N/A 32.0 ppb (30) N/A 5.0 ppb (7) 1.0 ppb (1) N/A N/A 23.1 μg/m3 (74) 74.0
 
Jan. 19, 2020, 2 a.m. N/A 38.8 ppb (36) N/A 30.0 ppb (28) N/A 5.0 ppb (7) 1.0 ppb (1) N/A N/A 19.5 μg/m3 (66) 66.0
 
Jan. 19, 2020, 1 a.m. N/A 35.0 ppb (32) N/A 30.0 ppb (28) N/A 5.0 ppb (7) 1.0 ppb (1) N/A N/A 18.3 μg/m3 (63) 63.0
 
Jan. 19, 2020, midnight N/A 36.1 ppb (33) N/A 28.0 ppb (26) N/A 6.0 ppb (9) 2.0 ppb (2) N/A N/A 18.9 μg/m3 (65) 65.0
 
Jan. 18, 2020, 11 p.m. N/A 38.8 ppb (36) N/A 28.0 ppb (26) N/A 10.0 ppb (14) 3.0 ppb (2) N/A N/A 24.5 μg/m3 (77) 77.0
 
Jan. 18, 2020, 10 p.m. N/A 44.0 ppb (41) N/A 28.0 ppb (26) N/A 10.0 ppb (14) 4.0 ppb (3) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 18, 2020, 9 p.m. N/A 34.3 ppb (32) N/A 25.0 ppb (23) N/A 5.0 ppb (7) 5.0 ppb (4) N/A N/A 15.2 μg/m3 (57) 57.0
 
Jan. 18, 2020, 8 p.m. N/A 29.2 ppb (27) N/A 22.0 ppb (20) N/A 4.0 ppb (6) 7.0 ppb (5) N/A N/A 14.6 μg/m3 (56) 56.0
 
Jan. 18, 2020, 7 p.m. N/A 25.4 ppb (24) N/A 21.0 ppb (19) N/A 4.0 ppb (6) 6.0 ppb (5) N/A N/A 14.6 μg/m3 (56) 56.0
 
Jan. 18, 2020, 6 p.m. N/A 31.5 ppb (29) N/A 25.0 ppb (23) N/A 4.0 ppb (6) 4.0 ppb (3) N/A N/A 15.4 μg/m3 (57) 57.0
 
Jan. 18, 2020, 5 p.m. N/A 27.9 ppb (26) N/A 26.0 ppb (24) N/A 4.0 ppb (6) 3.0 ppb (2) N/A N/A 15.1 μg/m3 (57) 57.0
 
Jan. 18, 2020, 4 p.m. N/A 24.0 ppb (22) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) N/A N/A 15.9 μg/m3 (58) 58.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 15.7 μg/m3 (58) 58.0
 
Jan. 18, 2020, 2 p.m. N/A 8.2 ppb (8) N/A 20.0 ppb (19) N/A 2.0 ppb (3) 6.0 ppb (5) N/A N/A 13.3 μg/m3 (53) 53.0
 
Jan. 18, 2020, 1 p.m. N/A 2.6 ppb (2) N/A 12.0 ppb (11) N/A 3.0 ppb (4) 12.0 ppb (9) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2020, noon N/A 16.2 ppb (15) N/A 20.0 ppb (19) N/A 4.0 ppb (6) 9.0 ppb (7) N/A N/A 16.2 μg/m3 (59) 59.0
 
Jan. 18, 2020, 11 a.m. N/A 20.3 ppb (19) N/A 27.0 ppb (25) N/A 5.0 ppb (7) 2.0 ppb (2) N/A N/A 20.3 μg/m3 (68) 68.0
 
Jan. 18, 2020, 10 a.m. N/A 30.0 ppb (28) N/A 29.0 ppb (27) N/A 4.0 ppb (6) 1.0 ppb (1) N/A N/A 24.2 μg/m3 (76) 76.0
 
Jan. 18, 2020, 9 a.m. N/A 62.2 ppb (59) N/A 34.0 ppb (31) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 24.8 μg/m3 (77) 77.0
 
Jan. 18, 2020, 8 a.m. N/A 84.8 ppb (83) N/A 38.0 ppb (35) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 25.5 μg/m3 (79) 83.0
 
Jan. 18, 2020, 7 a.m. N/A 48.2 ppb (45) N/A 32.0 ppb (30) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 19.8 μg/m3 (67) 67.0
 
Jan. 18, 2020, 6 a.m. N/A 28.0 ppb (26) N/A 28.0 ppb (26) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 15.8 μg/m3 (58) 58.0
 
Jan. 18, 2020, 5 a.m. N/A 38.8 ppb (36) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 22.9 μg/m3 (73) 73.0
 
Jan. 18, 2020, 4 a.m. N/A 16.1 ppb (15) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 17.8 μg/m3 (62) 62.0
 
Jan. 18, 2020, 3 a.m. N/A 36.8 ppb (34) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 12.5 μg/m3 (51) 51.0
 
Jan. 18, 2020, 2 a.m. N/A 34.8 ppb (32) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 18, 2020, 1 a.m. N/A 33.9 ppb (31) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 9.5 μg/m3 (40) 40.0
 
Jan. 18, 2020, midnight N/A 13.0 ppb (12) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 17, 2020, 11 p.m. N/A 4.9 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 17, 2020, 10 p.m. N/A 18.8 ppb (17) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 17, 2020, 9 p.m. N/A 36.7 ppb (34) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 9.0 ppb (7) N/A N/A 10.4 μg/m3 (43) 43.0
 
Jan. 17, 2020, 8 p.m. N/A 39.1 ppb (36) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 10.6 μg/m3 (44) 44.0
 
Jan. 17, 2020, 7 p.m. N/A 34.3 ppb (32) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 10.1 μg/m3 (42) 42.0
 
Jan. 17, 2020, 6 p.m. N/A 38.0 ppb (35) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 9.8 μg/m3 (41) 41.0
 
Jan. 17, 2020, 5 p.m. N/A 28.8 ppb (27) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 17, 2020, 4 p.m. N/A 31.7 ppb (29) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 9.5 μg/m3 (40) 40.0
 
Jan. 17, 2020, 3 p.m. N/A 17.8 ppb (16) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, 1 p.m. N/A 0.9 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 17, 2020, noon N/A 2.8 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 11 a.m. N/A 3.6 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 17, 2020, 10 a.m. N/A 9.1 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 17, 2020, 9 a.m. N/A 9.8 ppb (9) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 7 a.m. N/A 12.4 ppb (11) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 6 a.m. N/A 6.4 ppb (6) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 5.6 μg/m3 (23) 23.0
 
Jan. 17, 2020, 5 a.m. N/A 2.8 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 17, 2020, 4 a.m. N/A 2.6 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 17, 2020, 3 a.m. N/A 1.4 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 5.3 μg/m3 (22) 22.0
 
Jan. 17, 2020, 2 a.m. N/A 2.0 ppb (2) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 17, 2020, 1 a.m. N/A 1.9 ppb (2) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 17, 2020, midnight N/A 4.5 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 16, 2020, 11 p.m. N/A 4.4 ppb (4) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 16, 2020, 10 p.m. N/A 3.4 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 16, 2020, 9 p.m. N/A 5.0 ppb (5) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2020, 8 p.m. N/A 4.8 ppb (4) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.3 μg/m3 (22) 22.0
 
Jan. 16, 2020, 7 p.m. N/A 3.6 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 16, 2020, 6 p.m. N/A 3.2 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 16, 2020, 5 p.m. N/A 2.2 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 5.6 μg/m3 (23) 23.0
 
Jan. 16, 2020, 4 p.m. N/A 2.4 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 16, 2020, 3 p.m. N/A 1.6 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 28.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 2 p.m. N/A 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 16, 2020, noon N/A 1.1 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 28.0 ppb (22) N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 16, 2020, 11 a.m. N/A 1.1 ppb (1) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 28.0 ppb (22) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 16, 2020, 10 a.m. N/A 0.9 ppb (1) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 28.0 ppb (22) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 16, 2020, 9 a.m. N/A 1.0 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 30.0 ppb (23) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 16, 2020, 8 a.m. N/A 1.6 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 30.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 7 a.m. N/A 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 16, 2020, 6 a.m. N/A 1.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 16, 2020, 5 a.m. N/A 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2020, 4 a.m. N/A 1.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2020, 3 a.m. N/A 1.5 ppb (1) N/A 7.0 ppb (6) N/A 3.0 ppb (4) 29.0 ppb (22) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 16, 2020, 2 a.m. N/A 2.4 ppb (2) N/A 8.0 ppb (7) N/A 5.0 ppb (7) 27.0 ppb (21) N/A N/A 7.8 μg/m3 (32) 32.0
 
Jan. 16, 2020, 1 a.m. N/A 10.8 ppb (10) N/A 22.0 ppb (20) N/A 4.0 ppb (6) 10.0 ppb (8) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 16, 2020, midnight N/A 44.3 ppb (41) N/A 34.0 ppb (31) N/A 4.0 ppb (6) 2.0 ppb (2) N/A N/A 20.4 μg/m3 (68) 68.0
 
Jan. 15, 2020, 11 p.m. N/A 19.0 ppb (18) N/A 23.0 ppb (21) N/A 7.0 ppb (10) 9.0 ppb (7) N/A N/A 19.4 μg/m3 (66) 66.0
 
Jan. 15, 2020, 10 p.m. N/A 27.0 ppb (25) N/A 23.0 ppb (21) N/A 8.0 ppb (11) 10.0 ppb (8) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 15, 2020, 9 p.m. N/A 21.7 ppb (20) N/A 18.0 ppb (17) N/A 10.0 ppb (14) 14.0 ppb (11) N/A N/A 21.3 μg/m3 (70) 70.0
 
Jan. 15, 2020, 8 p.m. N/A 59.8 ppb (56) N/A 29.0 ppb (27) N/A 4.0 ppb (6) 9.0 ppb (7) N/A N/A 18.9 μg/m3 (65) 65.0
 
Jan. 15, 2020, 7 p.m. N/A 62.6 ppb (59) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 21.8 μg/m3 (71) 71.0
 
Jan. 15, 2020, 6 p.m. N/A 64.5 ppb (61) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A 22.5 μg/m3 (72) 72.0
 
Jan. 15, 2020, 5 p.m. N/A 56.2 ppb (52) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A 20.7 μg/m3 (69) 69.0
 
Jan. 15, 2020, 4 p.m. N/A 87.4 ppb (86) N/A 41.0 ppb (38) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 48.4 μg/m3 (132) 132.0
 
Jan. 15, 2020, 3 p.m. N/A 87.0 ppb (85) N/A 44.0 ppb (41) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 56.1 μg/m3 (150) 150.0
 
Jan. 15, 2020, 2 p.m. N/A 74.9 ppb (72) N/A 42.0 ppb (39) N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 75.6 μg/m3 (161) 161.0
 
Jan. 15, 2020, 1 p.m. N/A 51.5 ppb (48) N/A 37.0 ppb (34) N/A N/A 2.0 ppb (2) N/A N/A 45.3 μg/m3 (124) 124.0
 
Jan. 15, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 25.7 μg/m3 (79) 79.0
 
Jan. 15, 2020, 11 a.m. N/A 43.8 ppb (41) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 42.8 μg/m3 (118) 118.0
 
Jan. 15, 2020, 10 a.m. N/A 33.3 ppb (31) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 35.9 μg/m3 (101) 101.0
 
Jan. 15, 2020, 9 a.m. N/A 22.7 ppb (21) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 23.8 μg/m3 (75) 75.0
 
Jan. 15, 2020, 8 a.m. N/A 33.5 ppb (31) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 37.6 μg/m3 (105) 105.0
 
Jan. 15, 2020, 7 a.m. N/A 28.8 ppb (27) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 31.6 μg/m3 (92) 92.0
 
Jan. 15, 2020, 6 a.m. N/A 40.4 ppb (37) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 34.2 μg/m3 (97) 97.0
 
Jan. 15, 2020, 5 a.m. N/A 52.8 ppb (49) N/A 37.0 ppb (34) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 30.4 μg/m3 (89) 89.0
 
Jan. 15, 2020, 4 a.m. N/A 22.7 ppb (21) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 28.2 μg/m3 (84) 84.0
 
Jan. 15, 2020, 3 a.m. N/A 32.4 ppb (30) N/A 36.0 ppb (33) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 19.7 μg/m3 (66) 66.0
 
Jan. 15, 2020, 2 a.m. N/A 42.1 ppb (39) N/A 38.0 ppb (35) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 27.9 μg/m3 (84) 84.0
 
Jan. 15, 2020, 1 a.m. N/A 27.3 ppb (25) N/A 35.0 ppb (32) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 15, 2020, midnight N/A 28.0 ppb (26) N/A 36.0 ppb (33) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 21.6 μg/m3 (70) 70.0
 
Jan. 14, 2020, 11 p.m. N/A 36.3 ppb (34) N/A 34.0 ppb (31) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 20.8 μg/m3 (69) 69.0
 
Jan. 14, 2020, 10 p.m. N/A 47.5 ppb (44) N/A 34.0 ppb (31) N/A 4.0 ppb (6) 8.0 ppb (6) N/A N/A 24.6 μg/m3 (77) 77.0
 
Jan. 14, 2020, 9 p.m. N/A 43.5 ppb (40) N/A 29.0 ppb (27) N/A 2.0 ppb (3) 10.0 ppb (8) N/A N/A 17.4 μg/m3 (61) 61.0
 
Jan. 14, 2020, 8 p.m. N/A 52.7 ppb (49) N/A 30.0 ppb (28) N/A 2.0 ppb (3) 10.0 ppb (8) N/A N/A 23.4 μg/m3 (74) 74.0
 
Jan. 14, 2020, 7 p.m. N/A 67.4 ppb (64) N/A 34.0 ppb (31) N/A 2.0 ppb (3) 9.0 ppb (7) N/A N/A 34.9 μg/m3 (99) 99.0
 
Jan. 14, 2020, 6 p.m. N/A 87.6 ppb (86) N/A 41.0 ppb (38) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 49.5 μg/m3 (135) 135.0
 
Jan. 14, 2020, 5 p.m. N/A 34.5 ppb (32) N/A 27.0 ppb (25) N/A 3.0 ppb (4) 6.0 ppb (5) N/A N/A 30.2 μg/m3 (89) 89.0
 
Jan. 14, 2020, 4 p.m. N/A 21.8 ppb (20) N/A 27.0 ppb (25) N/A 6.0 ppb (9) 3.0 ppb (2) N/A N/A 27.9 μg/m3 (84) 84.0
 
Jan. 14, 2020, 3 p.m. N/A 28.7 ppb (27) N/A 31.0 ppb (29) N/A 6.0 ppb (9) 1.0 ppb (1) N/A N/A 31.1 μg/m3 (91) 91.0