ID: 99

AQSQID: 040134005

Site Name: Tempe

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

Updated: Jan. 16, 2021, 2:31 p.m.

Location: Tempe (University Park), AZ

Reporting: True, Located: True

Current AQI: 50.0

Tempe (University Park) AZ, US: 33.4124, -111.9347

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 49.9 μg/m3 (47) 24.6 μg/m3 (78) 78.0
 
Jan. 9, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 57.2 μg/m3 (53) 31.4 μg/m3 (92) 92.0
 
Jan. 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 61.7 μg/m3 (55) 33.8 μg/m3 (97) 97.0
 
Jan. 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 61.9 μg/m3 (55) 34.1 μg/m3 (98) 98.0
 
Jan. 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 67.2 μg/m3 (58) 35.6 μg/m3 (102) 102.0
 
Jan. 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 73.4 μg/m3 (61) 38.5 μg/m3 (109) 109.0
 
Jan. 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 77.2 μg/m3 (62) 42.8 μg/m3 (119) 119.0
 
Jan. 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 82.3 μg/m3 (65) 38.3 μg/m3 (108) 108.0
 
Jan. 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 81.9 μg/m3 (65) 22.3 μg/m3 (73) 73.0
 
Jan. 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 59.6 μg/m3 (54) 20.3 μg/m3 (69) 69.0
 
Jan. 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 66.2 μg/m3 (57) 23.3 μg/m3 (75) 75.0
 
Jan. 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 47.6 μg/m3 (45) 19.0 μg/m3 (66) 66.0
 
Jan. 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 43.0 μg/m3 (40) 16.9 μg/m3 (62) 62.0
 
Jan. 9, 2021, midnight N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 49.9 μg/m3 (47) 20.0 μg/m3 (68) 68.0
 
Jan. 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 60.0 μg/m3 (54) 23.6 μg/m3 (76) 76.0
 
Jan. 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 43.2 μg/m3 (40) 14.5 μg/m3 (57) 57.0
 
Jan. 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 40.7 μg/m3 (38) 15.1 μg/m3 (58) 58.0
 
Jan. 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 36.2 μg/m3 (34) 12.2 μg/m3 (52) 52.0
 
Jan. 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 30.9 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
Jan. 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 28.7 μg/m3 (27) 9.2 μg/m3 (39) 39.0
 
Jan. 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 31.8 μg/m3 (30) 8.6 μg/m3 (36) 36.0
 
Jan. 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 37.8 μg/m3 (35) 4.5 μg/m3 (19) 35.0
 
Jan. 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 58.1 μg/m3 (53) 12.1 μg/m3 (51) 53.0
 
Jan. 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 43.5 μg/m3 (41) 13.8 μg/m3 (55) 55.0
 
Jan. 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 38.0 μg/m3 (36) 13.2 μg/m3 (54) 54.0
 
Jan. 8, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 38.4 μg/m3 (36) 13.9 μg/m3 (55) 55.0
 
Jan. 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 43.0 μg/m3 (40) 23.9 μg/m3 (76) 76.0
 
Jan. 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 47.5 μg/m3 (44) 25.6 μg/m3 (80) 80.0
 
Jan. 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 61.9 μg/m3 (55) 29.4 μg/m3 (88) 88.0
 
Jan. 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 67.0 μg/m3 (57) 29.4 μg/m3 (88) 88.0
 
Jan. 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 64.1 μg/m3 (56) 25.3 μg/m3 (79) 79.0
 
Jan. 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 69.0 μg/m3 (58) 28.5 μg/m3 (86) 86.0
 
Jan. 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 55.1 μg/m3 (52) 17.8 μg/m3 (63) 63.0
 
Jan. 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 51.9 μg/m3 (49) 20.3 μg/m3 (69) 69.0
 
Jan. 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 159.6 μg/m3 (104) 24.4 μg/m3 (77) 104.0
 
Jan. 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 97.2 μg/m3 (72) 14.8 μg/m3 (57) 72.0
 
Jan. 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 33.8 μg/m3 (32) 6.8 μg/m3 (29) 32.0
 
Jan. 8, 2021, midnight N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 32.0 μg/m3 (30) 8.3 μg/m3 (35) 35.0
 
Jan. 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 20.1 μg/m3 (19) 2.8 μg/m3 (12) 28.0
 
Jan. 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 13.2 μg/m3 (13) 0.8 μg/m3 (4) 34.0
 
Jan. 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 16.7 μg/m3 (16) 3.5 μg/m3 (15) 33.0
 
Jan. 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 18.3 μg/m3 (17) 5.6 μg/m3 (24) 30.0
 
Jan. 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.8 μg/m3 (11) 1.3 μg/m3 (6) 30.0
 
Jan. 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 14.0 μg/m3 (13) 3.2 μg/m3 (14) 30.0
 
Jan. 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 30.2 μg/m3 (28) 5.7 μg/m3 (24) 28.0
 
Jan. 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 41.8 μg/m3 (39) 1.6 μg/m3 (7) 39.0
 
Jan. 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 42.5 μg/m3 (40) 4.9 μg/m3 (21) 40.0
 
Jan. 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.5 μg/m3 (31) 10.5 μg/m3 (44) 44.0
 
Jan. 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 9.9 μg/m3 (42) 42.0
 
Jan. 7, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 26.4 μg/m3 (25) 12.6 μg/m3 (53) 53.0
 
Jan. 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.5 μg/m3 (30) 15.4 μg/m3 (58) 58.0
 
Jan. 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 31.4 μg/m3 (30) 10.6 μg/m3 (45) 45.0
 
Jan. 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 33.0 μg/m3 (31) 13.0 μg/m3 (53) 53.0
 
Jan. 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 30.1 μg/m3 (28) 11.2 μg/m3 (47) 47.0
 
Jan. 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 33.8 μg/m3 (32) 11.7 μg/m3 (49) 49.0
 
Jan. 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 40.4 μg/m3 (38) 11.4 μg/m3 (48) 48.0
 
Jan. 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 49.6 μg/m3 (46) 14.8 μg/m3 (57) 57.0
 
Jan. 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 54.1 μg/m3 (51) 21.1 μg/m3 (70) 70.0
 
Jan. 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 54.2 μg/m3 (51) 18.2 μg/m3 (64) 64.0
 
Jan. 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 32.3 μg/m3 (30) 9.8 μg/m3 (41) 41.0
 
Jan. 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 32.5 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
Jan. 7, 2021, midnight N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 28.7 μg/m3 (27) 9.8 μg/m3 (41) 41.0
 
Jan. 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 22.0 μg/m3 (21) 6.4 μg/m3 (27) 27.0
 
Jan. 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 14.4 μg/m3 (14) 5.7 μg/m3 (24) 31.0
 
Jan. 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 5.8 μg/m3 (6) 2.0 μg/m3 (9) 40.0
 
Jan. 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.3 μg/m3 (10) 3.6 μg/m3 (16) 41.0
 
Jan. 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.3 μg/m3 (12) 0.1 μg/m3 (1) 39.0
 
Jan. 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 22.0 μg/m3 (21) 5.0 μg/m3 (21) 30.0
 
Jan. 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 33.4 μg/m3 (31) 8.1 μg/m3 (34) 34.0
 
Jan. 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 54.3 μg/m3 (51) 16.0 μg/m3 (60) 60.0
 
Jan. 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 53.9 μg/m3 (50) 14.1 μg/m3 (56) 56.0
 
Jan. 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 43.3 μg/m3 (41) 5.2 μg/m3 (22) 41.0
 
Jan. 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 36.0 μg/m3 (34) 13.9 μg/m3 (55) 55.0
 
Jan. 6, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 42.7 μg/m3 (40) 19.4 μg/m3 (67) 67.0
 
Jan. 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 26.7 μg/m3 (25) 12.1 μg/m3 (51) 51.0
 
Jan. 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 31.3 μg/m3 (29) 12.3 μg/m3 (52) 52.0
 
Jan. 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 42.7 μg/m3 (40) 18.2 μg/m3 (64) 64.0
 
Jan. 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 48.7 μg/m3 (46) 20.2 μg/m3 (69) 69.0
 
Jan. 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 58.9 μg/m3 (53) 30.9 μg/m3 (91) 91.0
 
Jan. 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 53.1 μg/m3 (50) 22.8 μg/m3 (74) 74.0
 
Jan. 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 46.5 μg/m3 (44) 18.2 μg/m3 (64) 64.0
 
Jan. 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 85.3 μg/m3 (66) 19.5 μg/m3 (67) 67.0
 
Jan. 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 50.9 μg/m3 (48) 16.3 μg/m3 (60) 60.0
 
Jan. 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 41.1 μg/m3 (39) 8.8 μg/m3 (37) 39.0
 
Jan. 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 39.4 μg/m3 (37) 11.0 μg/m3 (46) 46.0
 
Jan. 6, 2021, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 26.7 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
Jan. 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.2 μg/m3 (15) 1.8 μg/m3 (8) 37.0
 
Jan. 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 16.2 μg/m3 (15) 3.4 μg/m3 (15) 39.0
 
Jan. 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 16.4 μg/m3 (16) 4.7 μg/m3 (20) 34.0
 
Jan. 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 7.2 μg/m3 (7) -4.8 μg/m3 (0) 31.0
 
Jan. 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.1 μg/m3 (10) -1.2 μg/m3 (0) 30.0
 
Jan. 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 19.9 μg/m3 (19) -4.4 μg/m3 (0) 26.0
 
Jan. 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 36.8 μg/m3 (35) 5.2 μg/m3 (22) 35.0
 
Jan. 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 60.4 μg/m3 (54) 13.6 μg/m3 (55) 55.0
 
Jan. 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 153.9 μg/m3 (100) 18.2 μg/m3 (64) 100.0
 
Jan. 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.7 μg/m3 (51) 8.9 μg/m3 (38) 51.0
 
Jan. 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 38.9 μg/m3 (37) 14.1 μg/m3 (56) 56.0
 
Jan. 5, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 38.7 μg/m3 (36) 16.5 μg/m3 (61) 61.0
 
Jan. 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 38.8 μg/m3 (36) 18.0 μg/m3 (64) 64.0
 
Jan. 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 40.6 μg/m3 (38) 17.6 μg/m3 (63) 63.0
 
Jan. 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 45.5 μg/m3 (43) 11.6 μg/m3 (49) 49.0
 
Jan. 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 45.5 μg/m3 (43) 14.6 μg/m3 (57) 57.0
 
Jan. 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 56.4 μg/m3 (52) 20.5 μg/m3 (69) 69.0
 
Jan. 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 50.1 μg/m3 (47) 17.9 μg/m3 (64) 64.0
 
Jan. 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 51.0 μg/m3 (48) 25.3 μg/m3 (79) 79.0
 
Jan. 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 40.2 μg/m3 (38) 14.5 μg/m3 (57) 57.0
 
Jan. 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 33.2 μg/m3 (31) 8.0 μg/m3 (34) 34.0
 
Jan. 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 36.0 μg/m3 (34) 2.7 μg/m3 (12) 34.0
 
Jan. 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 42.9 μg/m3 (40) 4.0 μg/m3 (17) 40.0
 
Jan. 5, 2021, midnight N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 21.9 μg/m3 (21) 7.5 μg/m3 (32) 32.0
 
Jan. 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 12.4 μg/m3 (12) 4.5 μg/m3 (19) 34.0
 
Jan. 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 12.4 μg/m3 (12) 1.9 μg/m3 (8) 37.0
 
Jan. 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.7 μg/m3 (11) 1.7 μg/m3 (8) 35.0
 
Jan. 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 8.5 μg/m3 (8) -4.2 μg/m3 (0) 34.0
 
Jan. 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 21.4 μg/m3 (20) 5.2 μg/m3 (22) 29.0
 
Jan. 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 9.0
 
Jan. 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 3.0
 
Jan. 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.6 μg/m3 (28) 10.9 μg/m3 (46) 46.0
 
Jan. 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 20.8 μg/m3 (20) 8.6 μg/m3 (36) 36.0
 
Jan. 4, 2021, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 26.8 μg/m3 (25) 12.2 μg/m3 (52) 52.0
 
Jan. 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 31.6 μg/m3 (30) 17.8 μg/m3 (63) 63.0
 
Jan. 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 22.0 μg/m3 (21) 10.2 μg/m3 (43) 43.0
 
Jan. 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 17.9 μg/m3 (17) 7.2 μg/m3 (31) 31.0
 
Jan. 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 18.3 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
Jan. 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 22.1 μg/m3 (21) 9.2 μg/m3 (39) 39.0
 
Jan. 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 45.3 μg/m3 (42) 26.6 μg/m3 (82) 82.0
 
Jan. 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 57.2 μg/m3 (53) 33.8 μg/m3 (97) 97.0
 
Jan. 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 45.6 μg/m3 (43) 27.9 μg/m3 (85) 85.0
 
Jan. 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 42.6 μg/m3 (40) 26.9 μg/m3 (83) 83.0
 
Jan. 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 34.0 μg/m3 (32) 19.2 μg/m3 (66) 66.0
 
Jan. 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 22.2 μg/m3 (21) 5.8 μg/m3 (25) 25.0
 
Jan. 4, 2021, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 15.2 μg/m3 (15) 5.8 μg/m3 (25) 26.0
 
Jan. 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 10.1 μg/m3 (10) 3.5 μg/m3 (15) 38.0
 
Jan. 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 11.0 μg/m3 (11) 4.9 μg/m3 (21) 38.0
 
Jan. 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 18.3 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
Jan. 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 16.4 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
Jan. 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 17.8 μg/m3 (17) 9.3 μg/m3 (39) 39.0
 
Jan. 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 19.6 μg/m3 (19) 10.1 μg/m3 (43) 43.0
 
Jan. 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 21.9 μg/m3 (21) 10.7 μg/m3 (45) 45.0
 
Jan. 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 20.4 μg/m3 (19) 9.2 μg/m3 (39) 39.0
 
Jan. 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 28.0 μg/m3 (26) 14.4 μg/m3 (56) 56.0
 
Jan. 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 28.1 μg/m3 (27) 12.5 μg/m3 (52) 52.0
 
Jan. 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 25.3 μg/m3 (24) 16.3 μg/m3 (60) 60.0
 
Jan. 3, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 27.5 μg/m3 (26) 19.0 μg/m3 (66) 66.0
 
Jan. 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 26.9 μg/m3 (25) 16.6 μg/m3 (61) 61.0
 
Jan. 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 30.6 μg/m3 (29) 16.6 μg/m3 (61) 61.0
 
Jan. 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 31.3 μg/m3 (29) 17.6 μg/m3 (63) 63.0
 
Jan. 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 25.2 μg/m3 (24) 11.8 μg/m3 (50) 50.0
 
Jan. 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 23.8 μg/m3 (23) 10.7 μg/m3 (45) 45.0
 
Jan. 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 29.4 μg/m3 (28) 13.7 μg/m3 (55) 55.0
 
Jan. 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 50.3 μg/m3 (47) 27.8 μg/m3 (85) 85.0
 
Jan. 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 49.5 μg/m3 (46) 28.0 μg/m3 (85) 85.0
 
Jan. 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 68.8 μg/m3 (58) 27.2 μg/m3 (83) 83.0
 
Jan. 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 46.4 μg/m3 (43) 26.5 μg/m3 (82) 82.0
 
Jan. 3, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 34.2 μg/m3 (32) 18.6 μg/m3 (65) 65.0
 
Jan. 3, 2021, midnight N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
Jan. 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 14.5 μg/m3 (14) 8.9 μg/m3 (38) 38.0
 
Jan. 2, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 16.4 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
Jan. 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 16.9 μg/m3 (16) 9.8 μg/m3 (41) 41.0
 
Jan. 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 19.4 μg/m3 (18) 12.8 μg/m3 (53) 53.0
 
Jan. 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 18.7 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
Jan. 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 18.8 μg/m3 (18) 9.1 μg/m3 (38) 38.0
 
Jan. 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 17.2 μg/m3 (16) 7.2 μg/m3 (31) 31.0
 
Jan. 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 18.9 μg/m3 (18) 6.5 μg/m3 (28) 28.0
 
Jan. 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 24.9 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
Jan. 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.4 μg/m3 (30) 19.9 μg/m3 (68) 68.0