ID: 955

AQSQID: 040134003

Site Name: South Phoenix

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

Updated: Jan. 22, 2021, 10:32 p.m.

Location: Phoenix (S Mtain), AZ

Reporting: True, Located: True

Current AQI: 31.0

Phoenix (S Mtain) AZ, US: 33.4033, -112.0731

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.1 ppb (2) 7.2 μg/m3 (7) 2.0 μg/m3 (9) 31.0
 
Jan. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.1 ppb (2) 6.9 μg/m3 (7) 2.0 μg/m3 (9) 33.0
 
Jan. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.1 ppb (2) 7.9 μg/m3 (8) 2.3 μg/m3 (10) 30.0
 
Jan. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.1 ppb (2) 8.4 μg/m3 (8) 3.8 μg/m3 (16) 23.0
 
Jan. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.1 ppb (2) 27.2 μg/m3 (26) 9.5 μg/m3 (40) 40.0
 
Jan. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.5 ppb (6) 52.3 μg/m3 (49) 13.4 μg/m3 (54) 54.0
 
Jan. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.4 ppb (5) 48.7 μg/m3 (46) 7.3 μg/m3 (31) 46.0
 
Jan. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.4 ppb (5) 21.3 μg/m3 (20) 2.7 μg/m3 (12) 20.0
 
Jan. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.4 ppb (5) 10.8 μg/m3 (10) 2.6 μg/m3 (11) 11.0
 
Jan. 22, 2021, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.2 ppb (3) 8.5 μg/m3 (8) 2.6 μg/m3 (11) 11.0
 
Jan. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.1 ppb (2) 8.8 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Jan. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.2 ppb (3) 9.7 μg/m3 (9) 5.3 μg/m3 (23) 23.0
 
Jan. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.2 ppb (3) 8.2 μg/m3 (8) 4.6 μg/m3 (20) 20.0
 
Jan. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.2 ppb (3) 9.5 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Jan. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.2 ppb (3) 15.4 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
Jan. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.4 ppb (5) 35.6 μg/m3 (33) 14.6 μg/m3 (57) 57.0
 
Jan. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.6 ppb (7) 34.0 μg/m3 (32) 12.4 μg/m3 (52) 52.0
 
Jan. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.6 ppb (7) 30.4 μg/m3 (29) 9.8 μg/m3 (41) 41.0
 
Jan. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.4 ppb (5) 23.4 μg/m3 (22) 5.0 μg/m3 (21) 22.0
 
Jan. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.4 ppb (5) 19.1 μg/m3 (18) 2.7 μg/m3 (12) 18.0
 
Jan. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) 12.7 μg/m3 (12) 2.9 μg/m3 (13) 24.0
 
Jan. 22, 2021, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.1 ppb (2) 6.3 μg/m3 (6) 1.4 μg/m3 (6) 30.0
 
Jan. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 4.0 μg/m3 (4) 1.5 μg/m3 (7) 34.0
 
Jan. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 6.6 μg/m3 (7) 2.7 μg/m3 (12) 34.0
 
Jan. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 6.2 μg/m3 (6) 2.7 μg/m3 (12) 34.0
 
Jan. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.1 ppb (2) 3.4 μg/m3 (4) 0.8 μg/m3 (4) 33.0
 
Jan. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.1 ppb (2) 5.1 μg/m3 (5) 0.8 μg/m3 (4) 31.0
 
Jan. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.1 ppb (2) 9.2 μg/m3 (9) 3.0 μg/m3 (13) 26.0
 
Jan. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) 16.9 μg/m3 (16) 4.8 μg/m3 (20) 22.0
 
Jan. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.3 ppb (4) 42.4 μg/m3 (40) 6.4 μg/m3 (27) 40.0
 
Jan. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.4 ppb (5) 28.3 μg/m3 (27) 5.3 μg/m3 (23) 27.0
 
Jan. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.2 ppb (3) 15.8 μg/m3 (15) 4.5 μg/m3 (19) 19.0
 
Jan. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.2 ppb (3) 8.9 μg/m3 (9) 0.3 μg/m3 (2) 10.0
 
Jan. 21, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.1 ppb (2) 9.4 μg/m3 (9) 3.3 μg/m3 (14) 25.0
 
Jan. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.1 ppb (2) 9.4 μg/m3 (9) 2.3 μg/m3 (10) 23.0
 
Jan. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.1 ppb (2) 10.8 μg/m3 (10) 1.4 μg/m3 (6) 21.0
 
Jan. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.1 ppb (2) 8.4 μg/m3 (8) 1.8 μg/m3 (8) 26.0
 
Jan. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.1 ppb (2) 6.8 μg/m3 (7) 2.1 μg/m3 (9) 25.0
 
Jan. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.1 ppb (2) 7.4 μg/m3 (7) 1.7 μg/m3 (8) 25.0
 
Jan. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.1 ppb (2) 7.2 μg/m3 (7) 1.2 μg/m3 (5) 25.0
 
Jan. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.1 ppb (2) 10.5 μg/m3 (10) 3.6 μg/m3 (16) 25.0
 
Jan. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.1 ppb (2) 13.8 μg/m3 (13) 4.6 μg/m3 (20) 26.0
 
Jan. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.3 ppb (4) 30.5 μg/m3 (29) 8.2 μg/m3 (35) 35.0
 
Jan. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.6 ppb (7) 33.6 μg/m3 (32) 7.0 μg/m3 (30) 32.0
 
Jan. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.3 ppb (4) 26.3 μg/m3 (25) 5.5 μg/m3 (23) 25.0
 
Jan. 21, 2021, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.1 ppb (2) 12.3 μg/m3 (12) 2.6 μg/m3 (11) 32.0
 
Jan. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 11.9 μg/m3 (12) 2.9 μg/m3 (13) 37.0
 
Jan. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 10.1 μg/m3 (10) 0.8 μg/m3 (4) 38.0
 
Jan. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 14.6 μg/m3 (14) 2.5 μg/m3 (11) 37.0
 
Jan. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 18.1 μg/m3 (17) 1.6 μg/m3 (7) 37.0
 
Jan. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) N/A N/A 35.0
 
Jan. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.1 ppb (2) N/A N/A 33.0
 
Jan. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.1 ppb (2) N/A N/A 31.0
 
Jan. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.1 ppb (2) N/A N/A 28.0
 
Jan. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.1 ppb (2) N/A N/A 25.0
 
Jan. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 56.1 μg/m3 (52) 8.0 μg/m3 (34) 52.0
 
Jan. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.8 μg/m3 (54) 10.1 μg/m3 (43) 54.0
 
Jan. 20, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.3 ppb (4) 43.5 μg/m3 (41) 6.5 μg/m3 (28) 41.0
 
Jan. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 48.6 μg/m3 (45) 6.1 μg/m3 (26) 45.0
 
Jan. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.3 ppb (4) 57.6 μg/m3 (53) 5.0 μg/m3 (21) 53.0
 
Jan. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.3 ppb (4) 67.7 μg/m3 (58) 7.6 μg/m3 (32) 58.0
 
Jan. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.3 ppb (4) 91.6 μg/m3 (70) 11.3 μg/m3 (48) 70.0
 
Jan. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.4 ppb (5) 105.4 μg/m3 (76) 15.0 μg/m3 (58) 76.0
 
Jan. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.4 ppb (5) 117.0 μg/m3 (82) 13.8 μg/m3 (55) 82.0
 
Jan. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.3 ppb (4) 104.7 μg/m3 (76) 11.1 μg/m3 (47) 76.0
 
Jan. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.3 ppb (4) 113.6 μg/m3 (81) 11.4 μg/m3 (48) 81.0
 
Jan. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.3 ppb (4) 121.1 μg/m3 (84) 13.0 μg/m3 (53) 84.0
 
Jan. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.4 ppb (5) 88.1 μg/m3 (68) 9.6 μg/m3 (40) 68.0
 
Jan. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.4 ppb (5) 79.9 μg/m3 (64) 10.6 μg/m3 (45) 64.0
 
Jan. 20, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.4 ppb (5) 44.2 μg/m3 (41) 8.5 μg/m3 (36) 41.0
 
Jan. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.4 ppb (5) 11.7 μg/m3 (11) 2.4 μg/m3 (10) 27.0
 
Jan. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.3 ppb (4) 13.9 μg/m3 (13) 6.3 μg/m3 (27) 32.0
 
Jan. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.3 ppb (4) 9.5 μg/m3 (9) 5.3 μg/m3 (23) 32.0
 
Jan. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.3 ppb (4) 6.2 μg/m3 (6) 2.1 μg/m3 (9) 34.0
 
Jan. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.3 ppb (4) 13.1 μg/m3 (13) 6.6 μg/m3 (28) 33.0
 
Jan. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.4 ppb (5) 14.3 μg/m3 (14) 5.6 μg/m3 (24) 27.0
 
Jan. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.4 ppb (5) 24.2 μg/m3 (23) 8.5 μg/m3 (36) 36.0
 
Jan. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.5 ppb (6) 33.9 μg/m3 (32) 7.4 μg/m3 (31) 32.0
 
Jan. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.5 ppb (6) 31.2 μg/m3 (29) 3.2 μg/m3 (14) 29.0
 
Jan. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.5 ppb (6) 22.7 μg/m3 (22) 5.3 μg/m3 (23) 23.0
 
Jan. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.3 ppb (4) 272.2 μg/m3 (160) 13.0 μg/m3 (53) 160.0
 
Jan. 19, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.3 ppb (4) 156.2 μg/m3 (102) 5.9 μg/m3 (25) 102.0
 
Jan. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.4 ppb (5) 125.6 μg/m3 (86) 8.0 μg/m3 (34) 86.0
 
Jan. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.4 ppb (5) 57.7 μg/m3 (53) 10.4 μg/m3 (44) 53.0
 
Jan. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.7 ppb (8) 38.7 μg/m3 (36) 12.2 μg/m3 (52) 52.0
 
Jan. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.6 ppb (7) 33.6 μg/m3 (32) 11.6 μg/m3 (49) 49.0
 
Jan. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.5 ppb (6) 41.2 μg/m3 (39) 14.9 μg/m3 (57) 57.0
 
Jan. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.8 ppb (10) 54.3 μg/m3 (51) 16.5 μg/m3 (61) 61.0
 
Jan. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.8 ppb (10) 60.4 μg/m3 (54) 19.0 μg/m3 (66) 66.0
 
Jan. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.9 ppb (11) 75.7 μg/m3 (62) 19.1 μg/m3 (66) 66.0
 
Jan. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.2 ppb (14) 78.0 μg/m3 (63) 19.4 μg/m3 (67) 67.0
 
Jan. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.4 ppb (16) 84.8 μg/m3 (66) 12.5 μg/m3 (52) 66.0
 
Jan. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.9 ppb (11) 77.7 μg/m3 (63) 10.8 μg/m3 (46) 63.0
 
Jan. 19, 2021, midnight N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.5 ppb (6) 39.1 μg/m3 (37) 7.4 μg/m3 (31) 37.0
 
Jan. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.4 ppb (5) 30.7 μg/m3 (29) 6.1 μg/m3 (26) 33.0
 
Jan. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.4 ppb (5) 27.8 μg/m3 (26) 8.6 μg/m3 (36) 36.0
 
Jan. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.4 ppb (5) 31.5 μg/m3 (30) 8.7 μg/m3 (37) 37.0
 
Jan. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.5 ppb (6) 33.3 μg/m3 (31) 9.5 μg/m3 (40) 40.0
 
Jan. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.5 ppb (6) 51.4 μg/m3 (48) 18.0 μg/m3 (64) 64.0
 
Jan. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.7 ppb (8) 62.7 μg/m3 (55) 19.5 μg/m3 (67) 67.0
 
Jan. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.8 ppb (10) 72.0 μg/m3 (60) 21.3 μg/m3 (71) 71.0
 
Jan. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 1.0 ppb (12) 102.4 μg/m3 (75) 26.2 μg/m3 (81) 81.0
 
Jan. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.4 ppb (16) 116.5 μg/m3 (82) 28.2 μg/m3 (85) 85.0
 
Jan. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.5 ppb (18) 84.5 μg/m3 (66) 23.9 μg/m3 (76) 76.0
 
Jan. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.3 ppb (15) 60.4 μg/m3 (54) 23.7 μg/m3 (76) 76.0
 
Jan. 18, 2021, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.1 ppb (13) 53.4 μg/m3 (50) 27.1 μg/m3 (83) 83.0
 
Jan. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.9 ppb (11) 49.1 μg/m3 (46) 23.2 μg/m3 (75) 75.0
 
Jan. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (12) 47.8 μg/m3 (45) 22.5 μg/m3 (73) 73.0
 
Jan. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (12) 40.8 μg/m3 (38) 19.2 μg/m3 (66) 66.0
 
Jan. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.1 ppb (13) 43.6 μg/m3 (41) 18.9 μg/m3 (66) 66.0
 
Jan. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.1 ppb (13) 49.4 μg/m3 (46) 20.5 μg/m3 (69) 69.0
 
Jan. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.2 ppb (14) 458.9 μg/m3 (344) 40.4 μg/m3 (114) 344.0
 
Jan. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.5 ppb (18) 201.6 μg/m3 (125) 35.8 μg/m3 (102) 125.0
 
Jan. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (23) 129.7 μg/m3 (88) 47.5 μg/m3 (131) 131.0
 
Jan. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 2.4 ppb (28) 199.5 μg/m3 (124) 69.5 μg/m3 (159) 159.0
 
Jan. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 2.5 ppb (29) 131.8 μg/m3 (90) 42.4 μg/m3 (118) 118.0
 
Jan. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 1.1 ppb (13) 67.0 μg/m3 (57) 13.8 μg/m3 (55) 57.0
 
Jan. 18, 2021, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.5 ppb (6) 23.7 μg/m3 (22) 4.9 μg/m3 (21) 29.0
 
Jan. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.4 ppb (5) 14.0 μg/m3 (13) 2.5 μg/m3 (11) 40.0
 
Jan. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.4 ppb (5) 14.0 μg/m3 (13) 2.3 μg/m3 (10) 40.0
 
Jan. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.4 ppb (5) 14.7 μg/m3 (14) 5.0 μg/m3 (21) 37.0
 
Jan. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.4 ppb (5) 24.3 μg/m3 (23) 9.8 μg/m3 (41) 41.0
 
Jan. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.6 ppb (7) 30.6 μg/m3 (29) 13.7 μg/m3 (55) 55.0
 
Jan. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.7 ppb (8) 41.5 μg/m3 (39) 19.3 μg/m3 (67) 67.0
 
Jan. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.8 ppb (10) 78.6 μg/m3 (63) 36.3 μg/m3 (103) 103.0
 
Jan. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 1.3 ppb (15) 91.1 μg/m3 (69) 36.6 μg/m3 (104) 104.0
 
Jan. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.3 ppb (15) 56.9 μg/m3 (52) 24.6 μg/m3 (78) 78.0
 
Jan. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.9 ppb (11) 34.7 μg/m3 (33) 14.7 μg/m3 (57) 57.0
 
Jan. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.7 ppb (8) 29.7 μg/m3 (28) 13.6 μg/m3 (55) 55.0
 
Jan. 17, 2021, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.8 ppb (10) 28.3 μg/m3 (27) 15.8 μg/m3 (59) 59.0
 
Jan. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.8 ppb (10) 44.9 μg/m3 (42) 28.5 μg/m3 (86) 86.0
 
Jan. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.1 ppb (13) 57.8 μg/m3 (53) 36.6 μg/m3 (104) 104.0
 
Jan. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.2 ppb (14) 90.1 μg/m3 (69) 58.2 μg/m3 (153) 153.0
 
Jan. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.5 ppb (18) 99.9 μg/m3 (74) 63.2 μg/m3 (155) 155.0
 
Jan. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.5 ppb (18) 113.3 μg/m3 (80) 72.5 μg/m3 (160) 160.0
 
Jan. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.5 ppb (18) 96.5 μg/m3 (72) 55.5 μg/m3 (151) 151.0
 
Jan. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.4 ppb (16) 109.1 μg/m3 (78) 51.0 μg/m3 (140) 140.0
 
Jan. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.8 ppb (21) 107.6 μg/m3 (78) 41.8 μg/m3 (117) 117.0
 
Jan. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 2.2 ppb (25) 121.2 μg/m3 (84) 40.7 μg/m3 (114) 114.0
 
Jan. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 2.2 ppb (25) 129.4 μg/m3 (88) 38.7 μg/m3 (109) 109.0
 
Jan. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 1.5 ppb (18) 68.5 μg/m3 (58) 16.1 μg/m3 (60) 60.0
 
Jan. 17, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.5 ppb (6) 19.9 μg/m3 (19) 2.8 μg/m3 (12) 25.0
 
Jan. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.4 ppb (5) 23.9 μg/m3 (23) 4.6 μg/m3 (20) 40.0
 
Jan. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.4 ppb (5) 27.8 μg/m3 (26) 6.8 μg/m3 (29) 41.0
 
Jan. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.4 ppb (5) 22.5 μg/m3 (21) 3.8 μg/m3 (16) 40.0
 
Jan. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.4 ppb (5) 21.8 μg/m3 (21) 4.6 μg/m3 (20) 38.0
 
Jan. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.4 ppb (5) 32.5 μg/m3 (31) 9.4 μg/m3 (40) 40.0
 
Jan. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.6 ppb (7) 30.3 μg/m3 (29) 7.2 μg/m3 (31) 31.0
 
Jan. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.6 ppb (7) 44.7 μg/m3 (42) 10.8 μg/m3 (46) 46.0
 
Jan. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.8 ppb (10) 99.7 μg/m3 (74) 30.9 μg/m3 (91) 91.0
 
Jan. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.5 ppb (18) 86.1 μg/m3 (67) 30.4 μg/m3 (90) 90.0
 
Jan. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.3 ppb (15) 68.2 μg/m3 (58) 25.1 μg/m3 (79) 79.0
 
Jan. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.1 ppb (13) 55.7 μg/m3 (52) 24.2 μg/m3 (77) 77.0
 
Jan. 16, 2021, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (12) 48.0 μg/m3 (45) 22.7 μg/m3 (74) 74.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.9 ppb (11) 44.9 μg/m3 (42) 22.4 μg/m3 (73) 73.0
 
Jan. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.9 ppb (11) 75.7 μg/m3 (62) 26.3 μg/m3 (81) 81.0
 
Jan. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.0 ppb (12) 81.7 μg/m3 (65) 32.3 μg/m3 (94) 94.0
 
Jan. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.2 ppb (14) 58.6 μg/m3 (53) 31.6 μg/m3 (93) 93.0
 
Jan. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.2 ppb (14) 74.6 μg/m3 (61) 40.5 μg/m3 (114) 114.0
 
Jan. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.3 ppb (15) 90.1 μg/m3 (69) 43.3 μg/m3 (121) 121.0
 
Jan. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.4 ppb (16) 108.7 μg/m3 (78) 40.6 μg/m3 (114) 114.0
 
Jan. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.5 ppb (18) 97.6 μg/m3 (73) 35.6 μg/m3 (102) 102.0
 
Jan. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.8 ppb (21) 91.3 μg/m3 (69) 23.3 μg/m3 (75) 75.0
 
Jan. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.3 ppb (15) 86.1 μg/m3 (67) 17.0 μg/m3 (62) 67.0
 
Jan. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.9 ppb (11) 68.7 μg/m3 (58) 9.2 μg/m3 (39) 58.0
 
Jan. 16, 2021, midnight N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.5 ppb (6) 32.8 μg/m3 (31) 4.1 μg/m3 (18) 31.0
 
Jan. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.3 ppb (4) 26.6 μg/m3 (25) 2.5 μg/m3 (11) 34.0
 
Jan. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.3 ppb (4) 20.0 μg/m3 (19) 1.3 μg/m3 (6) 37.0