AQSQID: 040134003

Site Name: South Phoenix

Location: Phoenix (S Mtain), AZ

Reporting: True, Located: True

Current AQI: 45.0

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. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.6 ppb (7) 21.0 μg/m3 (19) 10.9 μg/m3 (45) 45.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.7 ppb (8) 31.0 μg/m3 (28) 13.2 μg/m3 (53) 53.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.8 ppb (9) 31.0 μg/m3 (28) 14.1 μg/m3 (54) 54.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.6 ppb (7) 30.0 μg/m3 (27) 15.4 μg/m3 (57) 57.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 0.7 ppb (8) 53.0 μg/m3 (48) 18.2 μg/m3 (63) 63.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (11) 61.0 μg/m3 (53) 18.0 μg/m3 (63) 63.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.8 ppb (9) 46.0 μg/m3 (42) 14.6 μg/m3 (56) 56.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.4 ppb (4) 31.0 μg/m3 (28) 10.3 μg/m3 (43) 43.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.4 ppb (4) 19.0 μg/m3 (17) 8.2 μg/m3 (34) 34.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.3 ppb (3) 16.0 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.3 ppb (3) 18.0 μg/m3 (16) 11.4 μg/m3 (48) 48.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.3 ppb (3) 14.0 μg/m3 (13) 10.2 μg/m3 (42) 42.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.3 ppb (3) 19.0 μg/m3 (17) 13.5 μg/m3 (53) 53.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.4 ppb (4) 19.0 μg/m3 (17) 11.8 μg/m3 (49) 49.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.4 ppb (4) 24.0 μg/m3 (22) 14.2 μg/m3 (55) 55.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) 0.7 ppb (8) 41.0 μg/m3 (37) 15.6 μg/m3 (58) 58.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.3 ppb (14) 49.0 μg/m3 (45) 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.6 ppb (18) 38.0 μg/m3 (35) 15.9 μg/m3 (58) 58.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.2 ppb (13) 23.0 μg/m3 (21) 11.9 μg/m3 (50) 50.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (11) 20.0 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.5 ppb (6) 18.0 μg/m3 (16) 12.7 μg/m3 (51) 51.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.4 ppb (4) 16.0 μg/m3 (15) 12.5 μg/m3 (51) 51.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.5 ppb (6) 15.0 μg/m3 (14) 10.9 μg/m3 (45) 45.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.5 ppb (6) 15.0 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 20.0 μg/m3 (18) 10.4 μg/m3 (43) 43.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (11) 31.0 μg/m3 (28) 14.5 μg/m3 (55) 55.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.1 ppb (12) 33.0 μg/m3 (30) 15.5 μg/m3 (57) 57.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.1 ppb (12) 44.0 μg/m3 (40) 16.9 μg/m3 (60) 60.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.2 ppb (13) 46.0 μg/m3 (42) 18.6 μg/m3 (64) 64.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (11) 36.0 μg/m3 (33) 13.2 μg/m3 (53) 53.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.7 ppb (8) 16.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Jan. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.3 ppb (3) 9.0 μg/m3 (8) 6.6 μg/m3 (28) 28.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 9.0 μg/m3 (8) 6.1 μg/m3 (25) 27.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 17.0 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 15.0 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 16.0 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 16.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 17.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.3 ppb (3) 27.0 μg/m3 (25) 12.6 μg/m3 (51) 51.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.5 ppb (6) N/A N/A 6.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.0 ppb (11) N/A N/A 11.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 1.2 ppb (13) 19.0 μg/m3 (17) 10.6 μg/m3 (44) 44.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.2 μg/m3 (30) 30.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.5 ppb (6) 9.0 μg/m3 (8) 6.3 μg/m3 (26) 26.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.3 ppb (3) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.3 ppb (3) 11.0 μg/m3 (10) 8.6 μg/m3 (36) 36.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.3 ppb (3) 2.0 μg/m3 (2) 2.2 μg/m3 (9) 9.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.4 ppb (4) 0.0 μg/m3 (0) 0.1 μg/m3 (0) 7.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.4 ppb (4) 4.0 μg/m3 (4) 2.8 μg/m3 (12) 12.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.4 ppb (4) 7.0 μg/m3 (6) 5.3 μg/m3 (22) 22.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 11.0 μg/m3 (10) 8.2 μg/m3 (34) 34.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.3 ppb (3) 8.0 μg/m3 (7) 6.6 μg/m3 (28) 28.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.3 ppb (3) 5.0 μg/m3 (5) 4.5 μg/m3 (19) 21.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.3 ppb (3) 4.0 μg/m3 (4) 4.1 μg/m3 (17) 19.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.3 ppb (3) 3.0 μg/m3 (3) 3.7 μg/m3 (15) 20.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.3 ppb (3) 1.0 μg/m3 (1) 2.1 μg/m3 (9) 22.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.3 ppb (3) 2.0 μg/m3 (2) 3.1 μg/m3 (13) 24.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.3 ppb (3) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.3 ppb (3) 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.3 ppb (3) 7.0 μg/m3 (6) 5.4 μg/m3 (23) 23.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.3 ppb (3) 3.0 μg/m3 (3) 2.9 μg/m3 (12) 26.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.3 ppb (3) 5.0 μg/m3 (5) 4.8 μg/m3 (20) 25.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.3 ppb (3) 2.0 μg/m3 (2) 2.8 μg/m3 (12) 26.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.3 ppb (3) 2.0 μg/m3 (2) 2.0 μg/m3 (8) 23.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.5 ppb (6) 7.0 μg/m3 (6) 4.6 μg/m3 (19) 19.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.4 ppb (4) 5.0 μg/m3 (5) 1.3 μg/m3 (5) 8.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.4 ppb (4) 16.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.4 ppb (4) 22.0 μg/m3 (20) 9.5 μg/m3 (40) 40.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.3 ppb (3) 19.0 μg/m3 (17) 5.5 μg/m3 (23) 23.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 10.0 μg/m3 (9) 1.9 μg/m3 (8) 22.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 26.0 μg/m3 (24) 6.9 μg/m3 (29) 29.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.3 ppb (3) 29.0 μg/m3 (26) 8.2 μg/m3 (34) 34.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.4 ppb (4) 23.0 μg/m3 (21) 8.2 μg/m3 (34) 34.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.4 ppb (4) 20.0 μg/m3 (18) 7.7 μg/m3 (32) 32.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.4 ppb (4) 24.0 μg/m3 (22) 5.7 μg/m3 (24) 24.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 32.0 μg/m3 (29) 12.3 μg/m3 (51) 51.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.9 ppb (10) 48.0 μg/m3 (44) 15.1 μg/m3 (57) 57.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.9 ppb (10) 42.0 μg/m3 (38) 8.4 μg/m3 (35) 38.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.6 ppb (7) 40.0 μg/m3 (36) 8.5 μg/m3 (35) 36.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.5 ppb (6) 49.0 μg/m3 (45) 10.7 μg/m3 (45) 45.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.4 ppb (4) 32.0 μg/m3 (29) 7.1 μg/m3 (30) 30.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.3 ppb (3) 24.0 μg/m3 (22) 4.4 μg/m3 (18) 22.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.3 ppb (3) 20.0 μg/m3 (18) 4.4 μg/m3 (18) 22.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.3 ppb (3) 18.0 μg/m3 (16) 4.4 μg/m3 (18) 27.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.3 ppb (3) 14.0 μg/m3 (13) 4.1 μg/m3 (17) 27.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.3 ppb (3) 15.0 μg/m3 (14) 3.4 μg/m3 (14) 22.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.3 ppb (3) 51.0 μg/m3 (46) 6.7 μg/m3 (28) 46.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.4 ppb (4) 78.0 μg/m3 (62) 6.0 μg/m3 (25) 62.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 13.0 μg/m3 (12) 4.4 μg/m3 (18) 18.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.4 ppb (4) 17.0 μg/m3 (15) 4.6 μg/m3 (19) 19.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.6 ppb (7) 28.0 μg/m3 (25) 5.3 μg/m3 (22) 25.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 19.0 μg/m3 (17) 5.9 μg/m3 (25) 25.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.4 ppb (4) 7.0 μg/m3 (6) 3.7 μg/m3 (15) 15.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.3 ppb (3) 2.0 μg/m3 (2) 1.1 μg/m3 (5) 21.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (4) 23.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 10.0 μg/m3 (9) 3.5 μg/m3 (15) 23.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.7 ppb (8) 34.0 μg/m3 (31) 18.0 μg/m3 (63) 63.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.1 ppb (12) 34.0 μg/m3 (31) 18.7 μg/m3 (64) 64.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.0 ppb (11) 50.0 μg/m3 (45) 25.6 μg/m3 (79) 79.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.4 ppb (16) 60.0 μg/m3 (52) 27.5 μg/m3 (83) 83.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.6 ppb (18) 74.0 μg/m3 (60) 28.2 μg/m3 (84) 84.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.6 ppb (18) 62.0 μg/m3 (54) 21.8 μg/m3 (71) 71.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.2 ppb (13) 35.0 μg/m3 (32) 11.4 μg/m3 (48) 48.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.4 ppb (4) 6.0 μg/m3 (5) 1.6 μg/m3 (7) 21.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 5.0 μg/m3 (5) 2.4 μg/m3 (10) 32.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 7.0 μg/m3 (6) 2.5 μg/m3 (10) 34.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 14.0 μg/m3 (13) 1.4 μg/m3 (6) 34.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 11.0 μg/m3 (10) 0.6 μg/m3 (2) 33.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 14.0 μg/m3 (13) 6.5 μg/m3 (27) 31.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.4 ppb (4) 22.0 μg/m3 (20) 14.7 μg/m3 (56) 56.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.6 ppb (7) 29.0 μg/m3 (26) 17.4 μg/m3 (61) 61.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.8 ppb (9) 49.0 μg/m3 (45) 31.5 μg/m3 (91) 91.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.4 ppb (16) 52.0 μg/m3 (47) 33.3 μg/m3 (95) 95.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (11) 42.0 μg/m3 (38) 29.3 μg/m3 (87) 87.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.9 ppb (10) 41.0 μg/m3 (37) 29.9 μg/m3 (88) 88.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (9) 41.0 μg/m3 (37) 29.2 μg/m3 (87) 87.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.8 ppb (9) 44.0 μg/m3 (40) 30.2 μg/m3 (89) 89.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 50.0 μg/m3 (45) 31.3 μg/m3 (91) 91.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.2 ppb (13) 63.0 μg/m3 (54) 43.7 μg/m3 (120) 120.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.2 ppb (13) 73.0 μg/m3 (59) 53.1 μg/m3 (144) 144.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.3 ppb (14) 72.0 μg/m3 (58) 44.0 μg/m3 (121) 121.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.3 ppb (14) 75.0 μg/m3 (60) 47.6 μg/m3 (130) 130.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 1.2 ppb (13) 92.0 μg/m3 (68) 62.6 μg/m3 (154) 154.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.5 ppb (17) 89.0 μg/m3 (67) 40.0 μg/m3 (111) 111.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 1.1 ppb (12) 56.0 μg/m3 (50) 26.8 μg/m3 (81) 81.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.7 ppb (8) 42.0 μg/m3 (38) 17.2 μg/m3 (61) 61.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.5 ppb (6) 34.0 μg/m3 (31) 13.8 μg/m3 (54) 54.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.4 ppb (4) 25.0 μg/m3 (23) 9.6 μg/m3 (40) 40.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.4 ppb (4) 17.0 μg/m3 (15) 7.5 μg/m3 (31) 32.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.3 ppb (3) 17.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.4 ppb (4) 12.0 μg/m3 (11) 6.5 μg/m3 (27) 29.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.3 ppb (3) 11.0 μg/m3 (10) 5.8 μg/m3 (24) 28.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.3 ppb (3) 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.3 ppb (3) 15.0 μg/m3 (14) 9.8 μg/m3 (41) 41.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.4 ppb (4) 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.5 ppb (6) 33.0 μg/m3 (30) 18.0 μg/m3 (63) 63.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 1.1 ppb (12) 43.0 μg/m3 (39) 26.0 μg/m3 (80) 80.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (11) 39.0 μg/m3 (35) 26.3 μg/m3 (80) 80.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.9 ppb (10) 36.0 μg/m3 (33) 24.6 μg/m3 (77) 77.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (9) 31.0 μg/m3 (28) 21.4 μg/m3 (70) 70.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 29.0 μg/m3 (26) 21.1 μg/m3 (69) 69.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.6 ppb (7) 31.0 μg/m3 (28) 22.3 μg/m3 (72) 72.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.6 ppb (7) 33.0 μg/m3 (30) 25.0 μg/m3 (78) 78.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.7 ppb (8) 39.0 μg/m3 (35) 25.3 μg/m3 (78) 78.0
 
Jan. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.8 ppb (9) 41.0 μg/m3 (37) 20.3 μg/m3 (68) 68.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.2 ppb (13) 59.0 μg/m3 (52) 33.2 μg/m3 (95) 95.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.4 ppb (16) 58.0 μg/m3 (52) 30.0 μg/m3 (88) 88.0
 
Jan. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.2 ppb (13) 64.0 μg/m3 (54) 23.1 μg/m3 (74) 74.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.1 ppb (12) 55.0 μg/m3 (50) 19.8 μg/m3 (67) 67.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 1.0 ppb (11) 52.0 μg/m3 (47) 11.6 μg/m3 (48) 48.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.8 ppb (9) 37.0 μg/m3 (34) 9.4 μg/m3 (39) 39.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.4 ppb (4) 15.0 μg/m3 (14) 6.1 μg/m3 (25) 26.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 31.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 17.0 μg/m3 (15) 4.7 μg/m3 (20) 31.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 13.0 μg/m3 (12) 4.3 μg/m3 (18) 31.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 16.0 μg/m3 (15) 5.1 μg/m3 (21) 28.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.3 ppb (3) 29.0 μg/m3 (26) 9.7 μg/m3 (40) 40.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 26.0 μg/m3 (24) 11.9 μg/m3 (50) 50.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.5 ppb (6) 31.0 μg/m3 (28) 15.8 μg/m3 (58) 58.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.6 ppb (7) 49.0 μg/m3 (45) 19.0 μg/m3 (65) 65.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 1.0 ppb (11) 64.0 μg/m3 (54) 17.1 μg/m3 (61) 61.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 1.3 ppb (14) 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.9 ppb (10) 22.0 μg/m3 (20) 6.9 μg/m3 (29) 29.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.7 ppb (8) 19.0 μg/m3 (17) 7.2 μg/m3 (30) 30.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.4 ppb (4) 5.0 μg/m3 (5) 3.6 μg/m3 (15) 15.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.2 ppb (2) 5.0 μg/m3 (5) 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.3 ppb (3) 4.0 μg/m3 (4) 5.1 μg/m3 (21) 21.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.3 ppb (3) 5.0 μg/m3 (5) 4.7 μg/m3 (20) 20.0