ID: 2679

AQSQID: 800020014

Site Name: Spabc14 Cobach

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

Updated: Sept. 21, 2021, 5:05 p.m.

Location: Mexicali (Heroico Colegio Militar), MX

Reporting: True, Located: True

Current AQI: 147.0

Mexicali (Heroico Colegio Militar) MX, MX: 32.6336, -115.5042

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 3 p.m. N/A 75.7 ppb (75) N/A 76.0 ppb (75) N/A N/A 5.0 ppb (5) 1.81 ppb (21) N/A 54.0 μg/m3 (147) 147.0
 
Sept. 21, 2021, 2 p.m. N/A 62.1 ppb (60) N/A 62.0 ppb (60) N/A N/A 5.0 ppb (5) 1.37 ppb (16) N/A 54.0 μg/m3 (147) 147.0
 
Sept. 21, 2021, 1 p.m. N/A 43.8 ppb (42) N/A 44.0 ppb (42) N/A N/A 4.0 ppb (4) 0.91 ppb (11) N/A 32.0 μg/m3 (93) 93.0
 
Sept. 21, 2021, noon N/A 32.2 ppb (31) N/A 32.0 ppb (31) N/A N/A 4.0 ppb (4) 0.77 ppb (10) N/A 30.0 μg/m3 (89) 89.0
 
Sept. 21, 2021, 11 a.m. N/A 43.1 ppb (41) N/A 43.0 ppb (41) N/A N/A 5.0 ppb (5) 1.08 ppb (13) N/A 45.0 μg/m3 (125) 125.0
 
Sept. 21, 2021, 10 a.m. N/A 37.9 ppb (36) N/A 38.0 ppb (36) N/A N/A 4.0 ppb (4) 0.87 ppb (11) N/A 67.0 μg/m3 (157) 157.0
 
Sept. 21, 2021, 9 a.m. N/A 35.4 ppb (34) N/A 35.0 ppb (34) N/A N/A 4.0 ppb (4) 0.71 ppb (8) N/A 47.0 μg/m3 (130) 130.0
 
Sept. 21, 2021, 8 a.m. N/A 51.2 ppb (49) N/A 51.0 ppb (49) N/A N/A 4.0 ppb (4) 1.23 ppb (14) N/A 32.0 μg/m3 (93) 93.0
 
Sept. 21, 2021, 7 a.m. N/A 43.5 ppb (42) N/A 44.0 ppb (42) N/A N/A 5.0 ppb (5) 1.02 ppb (12) N/A 56.0 μg/m3 (152) 152.0
 
Sept. 21, 2021, 6 a.m. N/A 32.3 ppb (31) N/A 32.0 ppb (31) N/A N/A 9.0 ppb (9) 0.82 ppb (10) N/A 61.0 μg/m3 (154) 154.0
 
Sept. 21, 2021, 5 a.m. N/A 24.8 ppb (24) N/A 25.0 ppb (24) N/A N/A 18.0 ppb (17) 0.58 ppb (7) N/A 49.0 μg/m3 (135) 135.0
 
Sept. 21, 2021, 4 a.m. N/A 29.0 ppb (28) N/A 29.0 ppb (28) N/A N/A 19.0 ppb (18) 0.68 ppb (8) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 21, 2021, 3 a.m. N/A 36.6 ppb (35) N/A 37.0 ppb (35) N/A N/A 8.0 ppb (8) 0.83 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 21, 2021, 2 a.m. N/A 21.8 ppb (21) N/A 22.0 ppb (21) N/A N/A 38.0 ppb (36) 0.49 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2021, 1 a.m. N/A 21.2 ppb (20) N/A 21.0 ppb (20) N/A N/A 47.0 ppb (44) 0.45 ppb (6) N/A 9.0 μg/m3 (38) 44.0
 
Sept. 21, 2021, midnight N/A 18.7 ppb (18) N/A 19.0 ppb (18) N/A N/A 55.0 ppb (51) 0.38 ppb (5) N/A 7.0 μg/m3 (30) 51.0
 
Sept. 20, 2021, 11 p.m. N/A 19.0 ppb (18) N/A 19.0 ppb (18) N/A N/A 60.0 ppb (68) 0.38 ppb (5) N/A 11.0 μg/m3 (46) 68.0
 
Sept. 20, 2021, 10 p.m. N/A 17.9 ppb (17) N/A 18.0 ppb (17) N/A N/A 70.0 ppb (100) 0.37 ppb (5) N/A 10.0 μg/m3 (42) 100.0
 
Sept. 20, 2021, 9 p.m. N/A 21.0 ppb (20) N/A 21.0 ppb (20) N/A N/A 66.0 ppb (87) 0.37 ppb (5) N/A 16.0 μg/m3 (60) 87.0
 
Sept. 20, 2021, 8 p.m. N/A 26.1 ppb (25) N/A 26.0 ppb (25) N/A N/A 69.0 ppb (97) 0.52 ppb (6) N/A 13.0 μg/m3 (53) 97.0
 
Sept. 20, 2021, 7 p.m. N/A 22.8 ppb (22) N/A 23.0 ppb (22) N/A N/A 61.0 ppb (71) 0.52 ppb (6) N/A 14.0 μg/m3 (55) 71.0
 
Sept. 20, 2021, 6 p.m. N/A 24.0 ppb (23) N/A 24.0 ppb (23) N/A N/A 49.0 ppb (46) 0.59 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 20, 2021, 5 p.m. N/A 28.8 ppb (28) N/A 29.0 ppb (28) N/A N/A 36.0 ppb (34) 0.67 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 20, 2021, 4 p.m. N/A 40.9 ppb (39) N/A 41.0 ppb (39) N/A N/A 18.0 ppb (17) 0.98 ppb (12) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 20, 2021, 3 p.m. N/A 31.8 ppb (30) N/A 32.0 ppb (31) N/A N/A 9.0 ppb (9) 0.88 ppb (11) N/A 38.0 μg/m3 (108) 108.0
 
Sept. 20, 2021, 2 p.m. N/A 45.8 ppb (44) N/A 46.0 ppb (44) N/A N/A 5.0 ppb (5) 1.0 ppb (12) N/A 44.0 μg/m3 (122) 122.0
 
Sept. 20, 2021, 1 p.m. N/A 48.6 ppb (46) N/A 49.0 ppb (47) N/A N/A 5.0 ppb (5) 1.04 ppb (12) N/A 33.0 μg/m3 (95) 95.0
 
Sept. 20, 2021, noon N/A 41.9 ppb (40) N/A 42.0 ppb (40) N/A N/A 5.0 ppb (5) 0.84 ppb (10) N/A 30.0 μg/m3 (89) 89.0
 
Sept. 20, 2021, 11 a.m. N/A 35.0 ppb (34) N/A 35.0 ppb (34) N/A N/A 5.0 ppb (5) 0.75 ppb (10) N/A 25.0 μg/m3 (79) 79.0
 
Sept. 20, 2021, 10 a.m. N/A 31.6 ppb (30) N/A 32.0 ppb (31) N/A N/A 7.0 ppb (7) 0.62 ppb (7) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 20, 2021, 9 a.m. N/A 22.2 ppb (21) N/A 22.0 ppb (21) N/A N/A 22.0 ppb (21) 0.54 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 20, 2021, 8 a.m. N/A 19.4 ppb (19) N/A 19.0 ppb (18) N/A N/A 29.0 ppb (27) 0.43 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 20, 2021, 7 a.m. N/A 14.0 ppb (14) N/A 14.0 ppb (14) N/A N/A 44.0 ppb (41) 0.31 ppb (4) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 20, 2021, 6 a.m. N/A 13.6 ppb (13) N/A 14.0 ppb (14) N/A N/A 47.0 ppb (44) 0.28 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 20, 2021, 5 a.m. N/A 17.3 ppb (17) N/A 17.0 ppb (17) N/A N/A 44.0 ppb (41) 0.4 ppb (5) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 20, 2021, 4 a.m. N/A 17.1 ppb (17) N/A 17.0 ppb (17) N/A N/A 46.0 ppb (43) 0.41 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 20, 2021, 3 a.m. N/A 24.9 ppb (24) N/A 25.0 ppb (24) N/A N/A 42.0 ppb (39) 0.51 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 20, 2021, 2 a.m. N/A 15.5 ppb (15) N/A 16.0 ppb (16) N/A N/A 52.0 ppb (49) 0.3 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 20, 2021, 1 a.m. N/A 12.1 ppb (12) N/A 12.0 ppb (12) N/A N/A 63.0 ppb (78) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 78.0
 
Sept. 20, 2021, midnight N/A 13.7 ppb (13) N/A 14.0 ppb (14) N/A N/A 64.0 ppb (81) 0.23 ppb (3) N/A 21.0 μg/m3 (70) 81.0
 
Sept. 19, 2021, 11 p.m. N/A 15.0 ppb (15) N/A 15.0 ppb (15) N/A N/A 62.0 ppb (74) 0.25 ppb (3) N/A 19.0 μg/m3 (66) 74.0
 
Sept. 19, 2021, 10 p.m. N/A 17.1 ppb (17) N/A 17.0 ppb (17) N/A N/A 63.0 ppb (78) 0.33 ppb (4) N/A 22.0 μg/m3 (72) 78.0
 
Sept. 19, 2021, 9 p.m. N/A 17.9 ppb (17) N/A 18.0 ppb (17) N/A N/A 58.0 ppb (61) 0.32 ppb (4) N/A 11.0 μg/m3 (46) 61.0
 
Sept. 19, 2021, 8 p.m. N/A 22.1 ppb (21) N/A 22.0 ppb (21) N/A N/A 45.0 ppb (42) 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 19, 2021, 7 p.m. N/A 20.7 ppb (20) N/A 21.0 ppb (20) N/A N/A 48.0 ppb (45) 0.38 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2021, 6 p.m. N/A 18.8 ppb (18) N/A 19.0 ppb (18) N/A N/A 45.0 ppb (42) 0.35 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 19, 2021, 5 p.m. N/A 24.0 ppb (23) N/A 24.0 ppb (23) N/A N/A 34.0 ppb (32) 0.45 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 19, 2021, 4 p.m. N/A 26.3 ppb (25) N/A 26.0 ppb (25) N/A N/A 24.0 ppb (23) 0.44 ppb (5) N/A 28.0 μg/m3 (85) 85.0
 
Sept. 19, 2021, 3 p.m. N/A 42.5 ppb (41) N/A 43.0 ppb (41) N/A N/A 9.0 ppb (9) 0.77 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 19, 2021, 2 p.m. N/A 28.6 ppb (27) N/A 29.0 ppb (28) N/A N/A 10.0 ppb (10) 0.55 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 19, 2021, 1 p.m. N/A 15.7 ppb (15) N/A 16.0 ppb (16) N/A N/A 24.0 ppb (23) 0.24 ppb (3) N/A 24.0 μg/m3 (77) 77.0
 
Sept. 19, 2021, noon N/A 14.5 ppb (14) N/A 15.0 ppb (15) N/A N/A 30.0 ppb (28) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
Sept. 19, 2021, 11 a.m. N/A 14.5 ppb (14) N/A 14.0 ppb (14) N/A N/A 30.0 ppb (28) 0.23 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 19, 2021, 10 a.m. N/A 15.3 ppb (15) N/A 15.0 ppb (15) N/A N/A 27.0 ppb (25) 0.27 ppb (4) N/A 5.0 μg/m3 (21) 25.0
 
Sept. 19, 2021, 9 a.m. N/A 14.6 ppb (14) N/A 15.0 ppb (15) N/A N/A 29.0 ppb (27) 0.26 ppb (4) N/A 5.0 μg/m3 (21) 27.0
 
Sept. 19, 2021, 8 a.m. N/A 13.9 ppb (14) N/A 14.0 ppb (14) N/A N/A 31.0 ppb (29) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 19, 2021, 7 a.m. N/A 14.5 ppb (14) N/A 14.0 ppb (14) N/A N/A 30.0 ppb (28) 0.27 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 19, 2021, 6 a.m. N/A 14.6 ppb (14) N/A 15.0 ppb (15) N/A N/A 32.0 ppb (30) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 19, 2021, 5 a.m. N/A 13.6 ppb (13) N/A 14.0 ppb (14) N/A N/A 36.0 ppb (34) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 19, 2021, 4 a.m. N/A 13.9 ppb (14) N/A 14.0 ppb (14) N/A N/A 37.0 ppb (35) 0.23 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2021, 3 a.m. N/A 15.5 ppb (15) N/A 15.0 ppb (15) N/A N/A 33.0 ppb (31) 0.22 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 19, 2021, 2 a.m. N/A 12.6 ppb (12) N/A 13.0 ppb (13) N/A N/A 42.0 ppb (39) 0.1 ppb (2) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 19, 2021, 1 a.m. N/A 12.0 ppb (12) N/A 12.0 ppb (12) N/A N/A 47.0 ppb (44) 0.07 ppb (2) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 19, 2021, midnight N/A 11.5 ppb (11) N/A 11.0 ppb (11) N/A N/A 48.0 ppb (45) 0.11 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2021, 11 p.m. N/A 11.6 ppb (11) N/A 12.0 ppb (12) N/A N/A 50.0 ppb (47) 0.16 ppb (3) N/A 11.0 μg/m3 (46) 47.0
 
Sept. 18, 2021, 10 p.m. N/A 13.8 ppb (14) N/A 14.0 ppb (14) N/A N/A 54.0 ppb (50) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, 9 p.m. N/A 14.6 ppb (14) N/A 15.0 ppb (15) N/A N/A 49.0 ppb (46) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 46.0
 
Sept. 18, 2021, 8 p.m. N/A 13.3 ppb (13) N/A 13.0 ppb (13) N/A N/A 45.0 ppb (42) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 42.0
 
Sept. 18, 2021, 7 p.m. N/A 15.3 ppb (15) N/A 15.0 ppb (15) N/A N/A 38.0 ppb (36) 0.35 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 6 p.m. N/A 19.1 ppb (19) N/A 19.0 ppb (18) N/A N/A 30.0 ppb (28) 0.34 ppb (4) N/A 26.0 μg/m3 (81) 81.0
 
Sept. 18, 2021, 5 p.m. N/A 27.3 ppb (26) N/A 27.0 ppb (26) N/A N/A 20.0 ppb (19) 0.53 ppb (6) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 18, 2021, 4 p.m. N/A 31.4 ppb (30) N/A 31.0 ppb (30) N/A N/A 15.0 ppb (14) 0.74 ppb (8) N/A 31.0 μg/m3 (91) 91.0
 
Sept. 18, 2021, 3 p.m. N/A 41.0 ppb (39) N/A 41.0 ppb (39) N/A N/A 6.0 ppb (6) 1.07 ppb (13) N/A 35.0 μg/m3 (100) 100.0
 
Sept. 18, 2021, 2 p.m. N/A 22.3 ppb (22) N/A 22.0 ppb (21) N/A N/A 7.0 ppb (7) 0.57 ppb (7) N/A 41.0 μg/m3 (115) 115.0
 
Sept. 18, 2021, 1 p.m. N/A 24.4 ppb (24) N/A 24.0 ppb (23) N/A N/A 8.0 ppb (8) 0.62 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, noon N/A 19.2 ppb (19) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (9) 0.42 ppb (5) N/A 27.0 μg/m3 (83) 83.0
 
Sept. 18, 2021, 11 a.m. N/A 21.8 ppb (21) N/A 22.0 ppb (21) N/A N/A 8.0 ppb (8) 0.49 ppb (6) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 18, 2021, 10 a.m. N/A 37.7 ppb (36) N/A 38.0 ppb (36) N/A N/A 4.0 ppb (4) 0.73 ppb (8) N/A 29.0 μg/m3 (87) 87.0
 
Sept. 18, 2021, 9 a.m. N/A 32.3 ppb (31) N/A 32.0 ppb (31) N/A N/A 5.0 ppb (5) 0.67 ppb (8) N/A 26.0 μg/m3 (81) 81.0
 
Sept. 18, 2021, 8 a.m. N/A 28.7 ppb (28) N/A 29.0 ppb (28) N/A N/A 9.0 ppb (9) 0.62 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, 7 a.m. N/A 22.1 ppb (21) N/A 22.0 ppb (21) N/A N/A 22.0 ppb (21) 0.53 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 18, 2021, 6 a.m. N/A 32.5 ppb (31) N/A 32.0 ppb (31) N/A N/A 15.0 ppb (14) 0.75 ppb (10) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 5 a.m. N/A 42.2 ppb (40) N/A 42.0 ppb (40) N/A N/A 8.0 ppb (8) 0.96 ppb (12) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 18, 2021, 4 a.m. N/A 25.4 ppb (24) N/A 25.0 ppb (24) N/A N/A 26.0 ppb (25) 0.66 ppb (8) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 18, 2021, 3 a.m. N/A 28.2 ppb (27) N/A 28.0 ppb (27) N/A N/A 18.0 ppb (17) 0.69 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 18, 2021, 2 a.m. N/A 25.6 ppb (25) N/A 26.0 ppb (25) N/A N/A 32.0 ppb (30) 0.68 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 18, 2021, 1 a.m. N/A 16.6 ppb (16) N/A 17.0 ppb (17) N/A N/A 49.0 ppb (46) 0.4 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 18, 2021, midnight N/A 12.8 ppb (13) N/A 13.0 ppb (13) N/A N/A 75.0 ppb (104) 0.27 ppb (4) N/A 21.0 μg/m3 (70) 104.0
 
Sept. 17, 2021, 11 p.m. N/A 14.0 ppb (14) N/A 14.0 ppb (14) N/A N/A 91.0 ppb (112) 0.33 ppb (4) N/A 16.0 μg/m3 (60) 112.0
 
Sept. 17, 2021, 10 p.m. N/A 15.9 ppb (15) N/A 16.0 ppb (16) N/A N/A 89.0 ppb (111) 0.38 ppb (5) N/A 18.0 μg/m3 (64) 111.0
 
Sept. 17, 2021, 9 p.m. N/A 17.2 ppb (17) N/A 17.0 ppb (17) N/A N/A 104.0 ppb (119) 0.45 ppb (6) N/A 15.0 μg/m3 (58) 119.0
 
Sept. 17, 2021, 8 p.m. N/A 16.2 ppb (16) N/A 16.0 ppb (16) N/A N/A 75.0 ppb (104) 0.4 ppb (5) N/A 25.0 μg/m3 (79) 104.0
 
Sept. 17, 2021, 7 p.m. N/A 16.3 ppb (16) N/A 16.0 ppb (16) N/A N/A 57.0 ppb (58) 0.39 ppb (5) N/A 10.0 μg/m3 (42) 58.0
 
Sept. 17, 2021, 6 p.m. N/A 14.4 ppb (14) N/A 14.0 ppb (14) N/A N/A 46.0 ppb (43) 0.26 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 17, 2021, 5 p.m. N/A 17.8 ppb (17) N/A 18.0 ppb (17) N/A N/A 41.0 ppb (38) 0.36 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 4 p.m. N/A 21.3 ppb (21) N/A 21.0 ppb (20) N/A N/A 37.0 ppb (35) 0.5 ppb (6) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 17, 2021, 3 p.m. N/A 30.2 ppb (29) N/A 30.0 ppb (29) N/A N/A 17.0 ppb (16) 0.78 ppb (10) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 17, 2021, 2 p.m. N/A 33.2 ppb (32) N/A 33.0 ppb (32) N/A N/A 9.0 ppb (9) 0.72 ppb (8) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 17, 2021, 1 p.m. N/A 14.7 ppb (14) N/A 15.0 ppb (15) N/A N/A 36.0 ppb (34) 0.29 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, noon N/A 14.6 ppb (14) N/A 15.0 ppb (15) N/A N/A 39.0 ppb (37) 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2021, 11 a.m. N/A 19.6 ppb (19) N/A 20.0 ppb (19) N/A N/A 18.0 ppb (17) 0.52 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 17, 2021, 10 a.m. N/A 17.3 ppb (17) N/A 17.0 ppb (17) N/A N/A 35.0 ppb (33) 0.33 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 17, 2021, 9 a.m. N/A 16.4 ppb (16) N/A 16.0 ppb (16) N/A N/A 43.0 ppb (40) 0.31 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 17, 2021, 8 a.m. N/A 27.3 ppb (26) N/A 27.0 ppb (26) N/A N/A 23.0 ppb (22) 0.43 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 17, 2021, 7 a.m. N/A 17.8 ppb (17) N/A 18.0 ppb (17) N/A N/A 42.0 ppb (39) 0.35 ppb (4) N/A 9.0 μg/m3 (38) 39.0
 
Sept. 17, 2021, 6 a.m. N/A 14.8 ppb (14) N/A 15.0 ppb (15) N/A N/A 52.0 ppb (49) 0.3 ppb (4) N/A 9.0 μg/m3 (38) 49.0
 
Sept. 17, 2021, 5 a.m. N/A 14.7 ppb (14) N/A 15.0 ppb (15) N/A N/A 56.0 ppb (55) 0.32 ppb (4) N/A 12.0 μg/m3 (50) 55.0
 
Sept. 17, 2021, 4 a.m. N/A 16.0 ppb (16) N/A 16.0 ppb (16) N/A N/A 55.0 ppb (51) 0.31 ppb (4) N/A 11.0 μg/m3 (46) 51.0
 
Sept. 17, 2021, 3 a.m. N/A 18.8 ppb (18) N/A 19.0 ppb (18) N/A N/A 57.0 ppb (58) 0.43 ppb (5) N/A 11.0 μg/m3 (46) 58.0
 
Sept. 17, 2021, 2 a.m. N/A 26.7 ppb (26) N/A 27.0 ppb (26) N/A N/A 51.0 ppb (48) 0.62 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 17, 2021, 1 a.m. N/A 15.6 ppb (15) N/A 16.0 ppb (16) N/A N/A 76.0 ppb (104) 0.3 ppb (4) N/A 18.0 μg/m3 (64) 104.0
 
Sept. 17, 2021, midnight N/A 15.0 ppb (15) N/A 15.0 ppb (15) N/A N/A 77.0 ppb (105) 0.29 ppb (4) N/A 17.0 μg/m3 (62) 105.0
 
Sept. 16, 2021, 11 p.m. N/A 13.9 ppb (14) N/A 14.0 ppb (14) N/A N/A 74.0 ppb (103) 0.27 ppb (4) N/A 14.0 μg/m3 (55) 103.0
 
Sept. 16, 2021, 10 p.m. N/A 13.6 ppb (13) N/A 14.0 ppb (14) N/A N/A 69.0 ppb (97) 0.23 ppb (3) N/A 12.0 μg/m3 (50) 97.0
 
Sept. 16, 2021, 9 p.m. N/A 16.2 ppb (16) N/A 16.0 ppb (16) N/A N/A 59.0 ppb (65) 0.3 ppb (4) N/A 12.0 μg/m3 (50) 65.0
 
Sept. 16, 2021, 8 p.m. N/A 23.7 ppb (23) N/A 24.0 ppb (23) N/A N/A 57.0 ppb (58) 0.41 ppb (5) N/A 14.0 μg/m3 (55) 58.0
 
Sept. 16, 2021, 7 p.m. N/A 28.2 ppb (27) N/A 28.0 ppb (27) N/A N/A 59.0 ppb (65) 0.51 ppb (6) N/A 16.0 μg/m3 (60) 65.0
 
Sept. 16, 2021, 6 p.m. N/A 37.5 ppb (36) N/A 37.0 ppb (35) N/A N/A 54.0 ppb (50) 0.76 ppb (10) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 16, 2021, 5 p.m. N/A 29.5 ppb (28) N/A 29.0 ppb (28) N/A N/A 36.0 ppb (34) 0.62 ppb (7) N/A 32.0 μg/m3 (93) 93.0
 
Sept. 16, 2021, 4 p.m. N/A 47.8 ppb (46) N/A 48.0 ppb (46) N/A N/A 17.0 ppb (16) 0.93 ppb (11) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, 3 p.m. N/A 69.5 ppb (68) N/A 70.0 ppb (69) N/A N/A 6.0 ppb (6) 1.28 ppb (15) N/A 35.0 μg/m3 (100) 100.0
 
Sept. 16, 2021, 2 p.m. N/A 65.1 ppb (63) N/A 65.0 ppb (63) N/A N/A 5.0 ppb (5) 1.31 ppb (15) N/A 43.0 μg/m3 (120) 120.0
 
Sept. 16, 2021, 1 p.m. N/A 39.8 ppb (38) N/A 40.0 ppb (38) N/A N/A 5.0 ppb (5) 0.78 ppb (10) N/A 31.0 μg/m3 (91) 91.0
 
Sept. 16, 2021, noon N/A 20.2 ppb (20) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (14) 0.46 ppb (6) N/A 31.0 μg/m3 (91) 91.0
 
Sept. 16, 2021, 11 a.m. N/A 16.4 ppb (16) N/A 16.0 ppb (16) N/A N/A 27.0 ppb (25) 0.37 ppb (5) N/A 34.0 μg/m3 (98) 98.0
 
Sept. 16, 2021, 10 a.m. N/A 15.8 ppb (15) N/A 16.0 ppb (16) N/A N/A 28.0 ppb (26) 0.38 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 16, 2021, 9 a.m. N/A 14.7 ppb (14) N/A 15.0 ppb (15) N/A N/A 29.0 ppb (27) 0.31 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 8 a.m. N/A 14.7 ppb (14) N/A 15.0 ppb (15) N/A N/A 31.0 ppb (29) 0.26 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 16, 2021, 7 a.m. N/A 16.1 ppb (16) N/A 16.0 ppb (16) N/A N/A 32.0 ppb (30) 0.31 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 16, 2021, 6 a.m. N/A 14.3 ppb (14) N/A 14.0 ppb (14) N/A N/A 45.0 ppb (42) 0.27 ppb (4) N/A 9.0 μg/m3 (38) 42.0
 
Sept. 16, 2021, 5 a.m. N/A 13.9 ppb (14) N/A 14.0 ppb (14) N/A N/A 52.0 ppb (49) 0.27 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 16, 2021, 4 a.m. N/A 14.7 ppb (14) N/A 15.0 ppb (15) N/A N/A 55.0 ppb (51) 0.29 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 3 a.m. N/A 16.6 ppb (16) N/A 17.0 ppb (17) N/A N/A 58.0 ppb (61) 0.37 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 16, 2021, 2 a.m. N/A 19.0 ppb (18) N/A 19.0 ppb (18) N/A N/A 48.0 ppb (45) 0.45 ppb (6) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, 1 a.m. N/A 17.3 ppb (17) N/A 17.0 ppb (17) N/A N/A 57.0 ppb (58) 0.37 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
Sept. 16, 2021, midnight N/A 17.2 ppb (17) N/A 17.0 ppb (17) N/A N/A 62.0 ppb (74) 0.36 ppb (5) N/A 15.0 μg/m3 (58) 74.0
 
Sept. 15, 2021, 11 p.m. N/A 17.2 ppb (17) N/A 17.0 ppb (17) N/A N/A 67.0 ppb (91) 0.39 ppb (5) N/A 17.0 μg/m3 (62) 91.0
 
Sept. 15, 2021, 10 p.m. N/A 16.4 ppb (16) N/A 16.0 ppb (16) N/A N/A 67.0 ppb (91) 0.34 ppb (4) N/A 20.0 μg/m3 (68) 91.0
 
Sept. 15, 2021, 9 p.m. N/A 19.0 ppb (18) N/A 19.0 ppb (18) N/A N/A 57.0 ppb (58) 0.39 ppb (5) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 8 p.m. N/A 24.4 ppb (24) N/A 24.0 ppb (23) N/A N/A 48.0 ppb (45) 0.44 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 15, 2021, 7 p.m. N/A 28.2 ppb (27) N/A 28.0 ppb (27) N/A N/A 40.0 ppb (38) 0.45 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 15, 2021, 6 p.m. N/A 20.6 ppb (20) N/A 21.0 ppb (20) N/A N/A 43.0 ppb (40) 0.36 ppb (5) N/A 20.0 μg/m3 (68) 68.0
 
Sept. 15, 2021, 5 p.m. N/A 16.0 ppb (16) N/A 16.0 ppb (16) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 15, 2021, 4 p.m. N/A 51.3 ppb (49) N/A 51.0 ppb (49) N/A N/A 15.0 ppb (14) 0.95 ppb (11) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 15, 2021, 3 p.m. N/A 72.2 ppb (71) N/A 72.0 ppb (71) N/A N/A 6.0 ppb (6) 1.33 ppb (15) N/A 35.0 μg/m3 (100) 100.0
 
Sept. 15, 2021, 2 p.m. N/A 51.1 ppb (49) N/A 51.0 ppb (49) N/A N/A 5.0 ppb (5) 1.01 ppb (12) N/A 50.0 μg/m3 (137) 137.0
 
Sept. 15, 2021, 1 p.m. N/A 35.4 ppb (34) N/A 35.0 ppb (34) N/A N/A 5.0 ppb (5) 0.7 ppb (8) N/A 46.0 μg/m3 (127) 127.0
 
Sept. 15, 2021, noon N/A 26.5 ppb (25) N/A 27.0 ppb (26) N/A N/A 5.0 ppb (5) 0.5 ppb (6) N/A 55.0 μg/m3 (150) 150.0
 
Sept. 15, 2021, 11 a.m. N/A 23.6 ppb (23) N/A 24.0 ppb (23) N/A N/A 7.0 ppb (7) 0.46 ppb (6) N/A 40.0 μg/m3 (113) 113.0
 
Sept. 15, 2021, 10 a.m. N/A 16.6 ppb (16) N/A 17.0 ppb (17) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 41.0 μg/m3 (115) 115.0
 
Sept. 15, 2021, 9 a.m. N/A 14.1 ppb (14) N/A 14.0 ppb (14) N/A N/A 34.0 ppb (32) 0.28 ppb (4) N/A 25.0 μg/m3 (79) 79.0
 
Sept. 15, 2021, 8 a.m. N/A 13.1 ppb (13) N/A 13.0 ppb (13) N/A N/A 38.0 ppb (36) 0.22 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2021, 7 a.m. N/A 12.9 ppb (13) N/A 13.0 ppb (13) N/A N/A 40.0 ppb (38) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 38.0
 
Sept. 15, 2021, 6 a.m. N/A 13.4 ppb (13) N/A 13.0 ppb (13) N/A N/A 42.0 ppb (39) 0.24 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 15, 2021, 5 a.m. N/A 14.6 ppb (14) N/A 15.0 ppb (15) N/A N/A 42.0 ppb (39) 0.33 ppb (4) N/A 9.0 μg/m3 (38) 39.0
 
Sept. 15, 2021, 4 a.m. N/A 15.2 ppb (15) N/A 15.0 ppb (15) N/A N/A 51.0 ppb (48) 0.31 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2021, 3 a.m. N/A 14.1 ppb (14) N/A 14.0 ppb (14) N/A N/A 62.0 ppb (74) 0.28 ppb (4) N/A 14.0 μg/m3 (55) 74.0
 
Sept. 15, 2021, 2 a.m. N/A 19.1 ppb (19) N/A 19.0 ppb (18) N/A N/A 50.0 ppb (47) 0.46 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 15, 2021, 1 a.m. N/A 21.6 ppb (21) N/A 22.0 ppb (21) N/A N/A 54.0 ppb (50) 0.52 ppb (6) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 15, 2021, midnight N/A 22.1 ppb (21) N/A 22.0 ppb (21) N/A N/A 58.0 ppb (61) 0.44 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 14, 2021, 11 p.m. N/A 15.7 ppb (15) N/A 16.0 ppb (16) N/A N/A 64.0 ppb (81) 0.33 ppb (4) N/A 17.0 μg/m3 (62) 81.0
 
Sept. 14, 2021, 10 p.m. N/A 18.5 ppb (18) N/A 18.0 ppb (17) N/A N/A 61.0 ppb (71) 0.43 ppb (5) N/A 14.0 μg/m3 (55) 71.0
 
Sept. 14, 2021, 9 p.m. N/A 16.9 ppb (16) N/A 17.0 ppb (17) N/A N/A 59.0 ppb (65) 0.4 ppb (5) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 14, 2021, 8 p.m. N/A 18.4 ppb (18) N/A 18.0 ppb (17) N/A N/A 58.0 ppb (61) 0.45 ppb (6) N/A 15.0 μg/m3 (58) 61.0
 
Sept. 14, 2021, 7 p.m. N/A 21.7 ppb (21) N/A 22.0 ppb (21) N/A N/A 47.0 ppb (44) 0.47 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
Sept. 14, 2021, 6 p.m. N/A 24.3 ppb (23) N/A 24.0 ppb (23) N/A N/A N/A 0.41 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Sept. 14, 2021, 5 p.m. N/A 26.2 ppb (25) N/A 26.0 ppb (25) N/A N/A 25.0 ppb (24) 0.52 ppb (6) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 14, 2021, 4 p.m. N/A 31.0 ppb (30) N/A 31.0 ppb (30) N/A N/A 6.0 ppb (6) 0.58 ppb (7) N/A 19.0 μg/m3 (66) 66.0