ID: 2336

AQSQID: 800150581

Site Name: Nezahualc¢Yotl

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

Updated: March 9, 2021, 12:32 a.m.

Location: Cdad Nezahualcóyotl (Correos), MX

Reporting: True, Located: True

Current AQI: 64.0

Cdad Nezahualcóyotl (Correos) MX, MX: 19.3919, -99.0281

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 8, 2021, 10 p.m. N/A N/A N/A 12.0 ppb (12) N/A 5.0 ppb (8) 50.0 ppb (47) 0.5 ppb (6) N/A 18.0 μg/m3 (64) 64.0
 
March 8, 2021, 9 p.m. N/A N/A N/A 13.0 ppb (13) N/A 5.0 ppb (8) 64.0 ppb (81) 0.5 ppb (6) N/A 45.0 μg/m3 (125) 125.0
 
March 8, 2021, 8 p.m. N/A N/A N/A 23.0 ppb (22) N/A 16.0 ppb (23) 88.0 ppb (110) 0.8 ppb (10) N/A 48.0 μg/m3 (132) 132.0
 
March 8, 2021, 7 p.m. N/A N/A N/A 23.0 ppb (22) N/A 22.0 ppb (32) 75.0 ppb (104) 0.7 ppb (8) N/A 53.0 μg/m3 (145) 145.0
 
March 8, 2021, 6 p.m. N/A N/A N/A 25.0 ppb (24) N/A 32.0 ppb (46) 54.0 ppb (50) 0.8 ppb (10) N/A 52.0 μg/m3 (142) 142.0
 
March 8, 2021, 5 p.m. N/A N/A N/A 22.0 ppb (21) N/A 39.0 ppb (55) 36.0 ppb (34) 0.8 ppb (10) N/A 46.0 μg/m3 (127) 127.0
 
March 8, 2021, 4 p.m. N/A N/A N/A 21.0 ppb (20) N/A 39.0 ppb (55) 25.0 ppb (24) 0.8 ppb (10) N/A 27.0 μg/m3 (83) 83.0
 
March 8, 2021, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A 20.0 ppb (29) 18.0 ppb (17) 0.7 ppb (8) N/A 26.0 μg/m3 (81) 81.0
 
March 8, 2021, 2 p.m. N/A N/A N/A 25.0 ppb (24) N/A 18.0 ppb (26) 13.0 ppb (13) 0.6 ppb (7) N/A 22.0 μg/m3 (72) 72.0
 
March 8, 2021, 1 p.m. N/A N/A N/A 21.0 ppb (20) N/A 20.0 ppb (29) 16.0 ppb (15) 0.5 ppb (6) N/A 21.0 μg/m3 (70) 70.0
 
March 8, 2021, noon N/A N/A N/A 16.0 ppb (16) N/A 15.0 ppb (22) 20.0 ppb (19) 0.4 ppb (5) N/A 24.0 μg/m3 (77) 77.0
 
March 8, 2021, 11 a.m. N/A N/A N/A 15.0 ppb (15) N/A 30.0 ppb (43) 22.0 ppb (21) N/A N/A 25.0 μg/m3 (79) 79.0
 
March 8, 2021, 10 a.m. N/A N/A N/A 14.0 ppb (14) N/A 34.0 ppb (49) 22.0 ppb (21) 0.7 ppb (8) N/A 49.0 μg/m3 (135) 135.0
 
March 8, 2021, 9 a.m. N/A N/A N/A 29.0 ppb (28) N/A 62.0 ppb (84) 10.0 ppb (10) 1.0 ppb (12) N/A 34.0 μg/m3 (98) 98.0
 
March 8, 2021, 8 a.m. N/A N/A N/A 37.0 ppb (35) N/A 11.0 ppb (16) 4.0 ppb (4) 1.1 ppb (13) N/A 24.0 μg/m3 (77) 77.0
 
March 8, 2021, 7 a.m. N/A N/A N/A 44.0 ppb (42) N/A 2.0 ppb (3) 2.0 ppb (2) 1.3 ppb (15) N/A 24.0 μg/m3 (77) 77.0
 
March 8, 2021, 6 a.m. N/A N/A N/A 50.0 ppb (48) N/A 2.0 ppb (3) 1.0 ppb (1) 1.4 ppb (16) N/A 18.0 μg/m3 (64) 64.0
 
March 8, 2021, 5 a.m. N/A N/A N/A 44.0 ppb (42) N/A 2.0 ppb (3) 6.0 ppb (6) 1.2 ppb (14) N/A 21.0 μg/m3 (70) 70.0
 
March 8, 2021, 4 a.m. N/A N/A N/A 41.0 ppb (39) N/A 2.0 ppb (3) 12.0 ppb (12) 1.2 ppb (14) N/A 18.0 μg/m3 (64) 64.0
 
March 8, 2021, 3 a.m. N/A N/A N/A 29.0 ppb (28) N/A 2.0 ppb (3) 26.0 ppb (25) 1.0 ppb (12) N/A 12.0 μg/m3 (50) 50.0
 
March 8, 2021, 2 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 37.0 ppb (35) 0.7 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
March 8, 2021, 1 a.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) 40.0 ppb (38) 0.7 ppb (8) N/A 26.0 μg/m3 (81) 81.0
 
March 8, 2021, midnight N/A N/A N/A 22.0 ppb (21) N/A 5.0 ppb (8) 50.0 ppb (47) 0.8 ppb (10) N/A 19.0 μg/m3 (66) 66.0
 
March 7, 2021, 11 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 57.0 ppb (58) 0.7 ppb (8) N/A 10.0 μg/m3 (42) 58.0
 
March 7, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) 62.0 ppb (74) 0.6 ppb (7) N/A 10.0 μg/m3 (42) 74.0
 
March 7, 2021, 9 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) 64.0 ppb (81) 0.6 ppb (7) N/A 21.0 μg/m3 (70) 81.0
 
March 7, 2021, 8 p.m. N/A N/A N/A 10.0 ppb (10) N/A 4.0 ppb (6) 82.0 ppb (107) 0.6 ppb (7) N/A 23.0 μg/m3 (74) 107.0
 
March 7, 2021, 7 p.m. N/A N/A N/A 13.0 ppb (13) N/A 3.0 ppb (5) 82.0 ppb (107) 0.7 ppb (8) N/A 41.0 μg/m3 (115) 115.0
 
March 7, 2021, 6 p.m. N/A N/A N/A 25.0 ppb (24) N/A 3.0 ppb (5) 89.0 ppb (111) 1.2 ppb (14) N/A 50.0 μg/m3 (137) 137.0
 
March 7, 2021, 5 p.m. N/A N/A N/A 33.0 ppb (32) N/A 6.0 ppb (9) 60.0 ppb (68) 1.4 ppb (16) N/A 48.0 μg/m3 (132) 132.0
 
March 7, 2021, 4 p.m. N/A N/A N/A 30.0 ppb (29) N/A 8.0 ppb (12) 32.0 ppb (30) 1.3 ppb (15) N/A 39.0 μg/m3 (110) 110.0
 
March 7, 2021, 3 p.m. N/A N/A N/A 26.0 ppb (25) N/A 6.0 ppb (9) 18.0 ppb (17) 1.2 ppb (14) N/A 28.0 μg/m3 (85) 85.0
 
March 7, 2021, 2 p.m. N/A N/A N/A 24.0 ppb (23) N/A 5.0 ppb (8) 10.0 ppb (10) 0.9 ppb (11) N/A 28.0 μg/m3 (85) 85.0
 
March 7, 2021, 1 p.m. N/A N/A N/A 20.0 ppb (19) N/A 8.0 ppb (12) 12.0 ppb (12) 0.8 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
March 7, 2021, noon N/A N/A N/A 21.0 ppb (20) N/A 6.0 ppb (9) 13.0 ppb (13) 0.8 ppb (10) N/A 21.0 μg/m3 (70) 70.0
 
March 7, 2021, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A 4.0 ppb (6) 14.0 ppb (13) 0.8 ppb (10) N/A 27.0 μg/m3 (83) 83.0
 
March 7, 2021, 10 a.m. N/A N/A N/A 17.0 ppb (17) N/A 3.0 ppb (5) 17.0 ppb (16) 0.8 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
March 7, 2021, 9 a.m. N/A N/A N/A 13.0 ppb (13) N/A 6.0 ppb (9) 22.0 ppb (21) 0.7 ppb (8) N/A 32.0 μg/m3 (93) 93.0
 
March 7, 2021, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A 30.0 ppb (43) 17.0 ppb (16) 0.9 ppb (11) N/A 24.0 μg/m3 (77) 77.0
 
March 7, 2021, 7 a.m. N/A N/A N/A 31.0 ppb (30) N/A 6.0 ppb (9) 11.0 ppb (11) 1.0 ppb (12) N/A 17.0 μg/m3 (62) 62.0
 
March 7, 2021, 6 a.m. N/A N/A N/A 41.0 ppb (39) N/A 0.0 ppb (0) 7.0 ppb (7) 1.2 ppb (14) N/A 15.0 μg/m3 (58) 58.0
 
March 7, 2021, 5 a.m. N/A N/A N/A 35.0 ppb (34) N/A 0.0 ppb (0) 16.0 ppb (15) 1.1 ppb (13) N/A 14.0 μg/m3 (55) 55.0
 
March 7, 2021, 4 a.m. N/A N/A N/A 25.0 ppb (24) N/A 1.0 ppb (2) 29.0 ppb (27) 0.9 ppb (11) N/A 13.0 μg/m3 (53) 53.0
 
March 7, 2021, 3 a.m. N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 31.0 ppb (29) 0.8 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
March 7, 2021, 2 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 37.0 ppb (35) 0.8 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
March 7, 2021, 1 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.8 ppb (10) N/A 45.0 μg/m3 (125) 125.0
 
March 7, 2021, midnight N/A N/A N/A 35.0 ppb (34) N/A 2.0 ppb (3) 97.0 ppb (115) 1.3 ppb (15) N/A 47.0 μg/m3 (130) 130.0
 
March 6, 2021, 11 p.m. N/A N/A N/A 30.0 ppb (29) N/A 2.0 ppb (3) 121.0 ppb (128) 1.3 ppb (15) N/A 42.0 μg/m3 (118) 128.0
 
March 6, 2021, 10 p.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) 122.0 ppb (128) 0.9 ppb (11) N/A 37.0 μg/m3 (105) 128.0
 
March 6, 2021, 9 p.m. N/A N/A N/A 14.0 ppb (14) N/A 3.0 ppb (5) 116.0 ppb (125) 0.8 ppb (10) N/A 42.0 μg/m3 (118) 125.0
 
March 6, 2021, 8 p.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) 103.0 ppb (118) 0.8 ppb (10) N/A 35.0 μg/m3 (100) 118.0
 
March 6, 2021, 7 p.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) 80.0 ppb (106) 0.8 ppb (10) N/A 28.0 μg/m3 (85) 106.0
 
March 6, 2021, 6 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 58.0 ppb (61) 0.8 ppb (10) N/A 25.0 μg/m3 (79) 79.0
 
March 6, 2021, 5 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 43.0 ppb (40) 0.7 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
March 6, 2021, 4 p.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 32.0 ppb (30) 0.7 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
March 6, 2021, 3 p.m. N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 20.0 ppb (19) 0.8 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
March 6, 2021, 2 p.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (20) 0.8 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
March 6, 2021, 1 p.m. N/A N/A N/A 17.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (21) 0.7 ppb (8) N/A 25.0 μg/m3 (79) 79.0
 
March 6, 2021, noon N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) 25.0 ppb (24) 0.7 ppb (8) N/A 24.0 μg/m3 (77) 77.0
 
March 6, 2021, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 32.0 ppb (30) 0.6 ppb (7) N/A 20.0 μg/m3 (68) 68.0
 
March 6, 2021, 10 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 35.0 ppb (33) 0.6 ppb (7) N/A 26.0 μg/m3 (81) 81.0
 
March 6, 2021, 9 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 34.0 ppb (32) 0.6 ppb (7) N/A 28.0 μg/m3 (85) 85.0
 
March 6, 2021, 8 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 32.0 ppb (30) 0.6 ppb (7) N/A 30.0 μg/m3 (89) 89.0
 
March 6, 2021, 7 a.m. N/A N/A N/A 34.0 ppb (33) N/A 1.0 ppb (2) 17.0 ppb (16) 0.9 ppb (11) N/A 24.0 μg/m3 (77) 77.0
 
March 6, 2021, 6 a.m. N/A N/A N/A 43.0 ppb (41) N/A 2.0 ppb (3) 11.0 ppb (11) 1.2 ppb (14) N/A 29.0 μg/m3 (87) 87.0
 
March 6, 2021, 5 a.m. N/A N/A N/A 46.0 ppb (44) N/A 2.0 ppb (3) 22.0 ppb (21) 1.6 ppb (19) N/A 33.0 μg/m3 (95) 95.0
 
March 6, 2021, 4 a.m. N/A N/A N/A 34.0 ppb (33) N/A 2.0 ppb (3) 41.0 ppb (38) 1.1 ppb (13) N/A 25.0 μg/m3 (79) 79.0
 
March 6, 2021, 3 a.m. N/A N/A N/A 26.0 ppb (25) N/A 2.0 ppb (3) 37.0 ppb (35) 1.1 ppb (13) N/A 25.0 μg/m3 (79) 79.0
 
March 6, 2021, 2 a.m. N/A N/A N/A 23.0 ppb (22) N/A 3.0 ppb (5) 42.0 ppb (39) 0.9 ppb (11) N/A 23.0 μg/m3 (74) 74.0
 
March 6, 2021, 1 a.m. N/A N/A N/A 24.0 ppb (23) N/A 5.0 ppb (8) 55.0 ppb (51) 1.0 ppb (12) N/A 20.0 μg/m3 (68) 68.0
 
March 6, 2021, midnight N/A N/A N/A 18.0 ppb (17) N/A 8.0 ppb (12) 65.0 ppb (84) 0.8 ppb (10) N/A 17.0 μg/m3 (62) 84.0
 
March 5, 2021, 11 p.m. N/A N/A N/A 14.0 ppb (14) N/A 6.0 ppb (9) 72.0 ppb (102) 0.7 ppb (8) N/A 15.0 μg/m3 (58) 102.0
 
March 5, 2021, 10 p.m. N/A N/A N/A 12.0 ppb (12) N/A 3.0 ppb (5) 70.0 ppb (100) 0.7 ppb (8) N/A 13.0 μg/m3 (53) 100.0
 
March 5, 2021, 9 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) 75.0 ppb (104) 0.6 ppb (7) N/A 11.0 μg/m3 (46) 104.0
 
March 5, 2021, 8 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 75.0 ppb (104) 0.6 ppb (7) N/A 22.0 μg/m3 (72) 104.0
 
March 5, 2021, 7 p.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) 81.0 ppb (107) 0.8 ppb (10) N/A 33.0 μg/m3 (95) 107.0
 
March 5, 2021, 6 p.m. N/A N/A N/A 23.0 ppb (22) N/A 2.0 ppb (3) 77.0 ppb (105) 0.9 ppb (11) N/A 36.0 μg/m3 (103) 105.0
 
March 5, 2021, 5 p.m. N/A N/A N/A 31.0 ppb (30) N/A 2.0 ppb (3) 59.0 ppb (65) 1.1 ppb (13) N/A 43.0 μg/m3 (120) 120.0
 
March 5, 2021, 4 p.m. N/A N/A N/A 41.0 ppb (39) N/A 3.0 ppb (5) 29.0 ppb (27) 1.3 ppb (15) N/A 44.0 μg/m3 (122) 122.0
 
March 5, 2021, 3 p.m. N/A N/A N/A 37.0 ppb (35) N/A 3.0 ppb (5) 11.0 ppb (11) 1.6 ppb (19) N/A 47.0 μg/m3 (130) 130.0
 
March 5, 2021, 2 p.m. N/A N/A N/A 38.0 ppb (36) N/A 3.0 ppb (5) 3.0 ppb (3) 2.1 ppb (24) N/A 44.0 μg/m3 (122) 122.0
 
March 5, 2021, 1 p.m. N/A N/A N/A 41.0 ppb (39) N/A 3.0 ppb (5) 3.0 ppb (3) 2.1 ppb (24) N/A 30.0 μg/m3 (89) 89.0
 
March 5, 2021, noon N/A N/A N/A 31.0 ppb (30) N/A 1.0 ppb (2) 14.0 ppb (13) 1.1 ppb (13) N/A 44.0 μg/m3 (122) 122.0
 
March 5, 2021, 11 a.m. N/A N/A N/A 36.0 ppb (34) N/A 1.0 ppb (2) 10.0 ppb (10) 1.1 ppb (13) N/A 35.0 μg/m3 (100) 100.0
 
March 5, 2021, 10 a.m. N/A N/A N/A 41.0 ppb (39) N/A 1.0 ppb (2) 4.0 ppb (4) 1.2 ppb (14) N/A 60.0 μg/m3 (154) 154.0
 
March 5, 2021, 9 a.m. N/A N/A N/A 44.0 ppb (42) N/A 1.0 ppb (2) 2.0 ppb (2) 1.2 ppb (14) N/A 26.0 μg/m3 (81) 81.0
 
March 5, 2021, 8 a.m. N/A N/A N/A 43.0 ppb (41) N/A 1.0 ppb (2) 2.0 ppb (2) 1.2 ppb (14) N/A 18.0 μg/m3 (64) 64.0
 
March 5, 2021, 7 a.m. N/A N/A N/A 36.0 ppb (34) N/A 0.0 ppb (0) 7.0 ppb (7) 1.0 ppb (12) N/A 13.0 μg/m3 (53) 53.0
 
March 5, 2021, 6 a.m. N/A N/A N/A 33.0 ppb (32) N/A 0.0 ppb (0) 12.0 ppb (12) 1.0 ppb (12) N/A 15.0 μg/m3 (58) 58.0
 
March 5, 2021, 5 a.m. N/A N/A N/A 28.0 ppb (27) N/A 0.0 ppb (0) 20.0 ppb (19) 0.9 ppb (11) N/A 22.0 μg/m3 (72) 72.0
 
March 5, 2021, 4 a.m. N/A N/A N/A 26.0 ppb (25) N/A 1.0 ppb (2) 33.0 ppb (31) 1.0 ppb (12) N/A 21.0 μg/m3 (70) 70.0
 
March 5, 2021, 3 a.m. N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 53.0 ppb (50) 1.0 ppb (12) N/A 27.0 μg/m3 (83) 83.0
 
March 5, 2021, 2 a.m. N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 56.0 ppb (55) 1.0 ppb (12) N/A 28.0 μg/m3 (85) 85.0
 
March 5, 2021, 1 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 63.0 ppb (78) 0.9 ppb (11) N/A N/A 78.0
 
March 5, 2021, midnight N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 77.0 ppb (105) 0.8 ppb (10) N/A N/A 105.0
 
March 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (66) 66.0
 
March 4, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 93.0 ppb (113) 0.6 ppb (7) N/A 19.0 μg/m3 (66) 113.0
 
March 4, 2021, 9 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 94.0 ppb (114) 0.6 ppb (7) N/A 17.0 μg/m3 (62) 114.0
 
March 4, 2021, 8 p.m. N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) 90.0 ppb (112) 0.7 ppb (8) N/A 26.0 μg/m3 (81) 112.0
 
March 4, 2021, 7 p.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) 86.0 ppb (109) 0.7 ppb (8) N/A 32.0 μg/m3 (93) 109.0
 
March 4, 2021, 6 p.m. N/A N/A N/A 35.0 ppb (34) N/A 3.0 ppb (5) 71.0 ppb (101) 1.0 ppb (12) N/A 54.0 μg/m3 (147) 147.0
 
March 4, 2021, 5 p.m. N/A N/A N/A 62.0 ppb (60) N/A 4.0 ppb (6) 50.0 ppb (47) 1.7 ppb (20) N/A 44.0 μg/m3 (122) 122.0
 
March 4, 2021, 4 p.m. N/A N/A N/A 58.0 ppb (56) N/A 5.0 ppb (8) 25.0 ppb (24) 1.9 ppb (22) N/A 43.0 μg/m3 (120) 120.0
 
March 4, 2021, 3 p.m. N/A N/A N/A 52.0 ppb (50) N/A 4.0 ppb (6) 7.0 ppb (7) 2.6 ppb (30) N/A 60.0 μg/m3 (154) 154.0
 
March 4, 2021, 2 p.m. N/A N/A N/A 46.0 ppb (44) N/A 4.0 ppb (6) 3.0 ppb (3) 2.4 ppb (28) N/A 44.0 μg/m3 (122) 122.0
 
March 4, 2021, 1 p.m. N/A N/A N/A 38.0 ppb (36) N/A 3.0 ppb (5) 12.0 ppb (12) 1.1 ppb (13) N/A 45.0 μg/m3 (125) 125.0
 
March 4, 2021, noon N/A N/A N/A 28.0 ppb (27) N/A 3.0 ppb (5) 23.0 ppb (22) 0.8 ppb (10) N/A 42.0 μg/m3 (118) 118.0
 
March 4, 2021, 11 a.m. N/A N/A N/A 25.0 ppb (24) N/A 1.0 ppb (2) 23.0 ppb (22) 0.8 ppb (10) N/A 36.0 μg/m3 (103) 103.0
 
March 4, 2021, 10 a.m. N/A N/A N/A 25.0 ppb (24) N/A 1.0 ppb (2) 21.0 ppb (20) 0.7 ppb (8) N/A 31.0 μg/m3 (91) 91.0
 
March 4, 2021, 9 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 28.0 ppb (26) 0.7 ppb (8) N/A 31.0 μg/m3 (91) 91.0
 
March 4, 2021, 8 a.m. N/A N/A N/A 25.0 ppb (24) N/A 1.0 ppb (2) 28.0 ppb (26) 0.8 ppb (10) N/A 27.0 μg/m3 (83) 83.0
 
March 4, 2021, 7 a.m. N/A N/A N/A 26.0 ppb (25) N/A 1.0 ppb (2) 29.0 ppb (27) 0.8 ppb (10) N/A 26.0 μg/m3 (81) 81.0
 
March 4, 2021, 6 a.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 44.0 ppb (41) 0.8 ppb (10) N/A 28.0 μg/m3 (85) 85.0
 
March 4, 2021, 5 a.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) 67.0 ppb (91) 0.8 ppb (10) N/A 26.0 μg/m3 (81) 91.0
 
March 4, 2021, 4 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 62.0 ppb (74) 0.8 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
March 4, 2021, 3 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (2) 54.0 ppb (50) 0.8 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
March 4, 2021, 2 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (2) 61.0 ppb (71) 0.9 ppb (11) N/A 33.0 μg/m3 (95) 95.0
 
March 4, 2021, 1 a.m. N/A N/A N/A 21.0 ppb (20) N/A 2.0 ppb (3) 69.0 ppb (97) 0.9 ppb (11) N/A 28.0 μg/m3 (85) 97.0
 
March 4, 2021, midnight N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) 82.0 ppb (107) 0.7 ppb (8) N/A 22.0 μg/m3 (72) 107.0
 
March 3, 2021, 11 p.m. N/A N/A N/A 13.0 ppb (13) N/A 3.0 ppb (5) 93.0 ppb (113) 0.6 ppb (7) N/A 23.0 μg/m3 (74) 113.0
 
March 3, 2021, 10 p.m. N/A N/A N/A 13.0 ppb (13) N/A 4.0 ppb (6) 100.0 ppb (117) 0.7 ppb (8) N/A 24.0 μg/m3 (77) 117.0
 
March 3, 2021, 9 p.m. N/A N/A N/A 11.0 ppb (11) N/A 4.0 ppb (6) 95.0 ppb (114) 0.7 ppb (8) N/A 25.0 μg/m3 (79) 114.0
 
March 3, 2021, 8 p.m. N/A N/A N/A 12.0 ppb (12) N/A 5.0 ppb (8) 83.0 ppb (108) 0.8 ppb (10) N/A 23.0 μg/m3 (74) 108.0
 
March 3, 2021, 7 p.m. N/A N/A N/A 14.0 ppb (14) N/A 6.0 ppb (9) 75.0 ppb (104) 0.8 ppb (10) N/A 30.0 μg/m3 (89) 104.0
 
March 3, 2021, 6 p.m. N/A N/A N/A 19.0 ppb (18) N/A 8.0 ppb (12) 68.0 ppb (94) 0.9 ppb (11) N/A 36.0 μg/m3 (103) 103.0
 
March 3, 2021, 5 p.m. N/A N/A N/A 34.0 ppb (33) N/A 10.0 ppb (15) 49.0 ppb (46) 1.3 ppb (15) N/A 29.0 μg/m3 (87) 87.0
 
March 3, 2021, 4 p.m. N/A N/A N/A 35.0 ppb (34) N/A 9.0 ppb (13) 27.0 ppb (25) 1.4 ppb (16) N/A 20.0 μg/m3 (68) 68.0
 
March 3, 2021, 3 p.m. N/A N/A N/A 28.0 ppb (27) N/A 2.0 ppb (3) 20.0 ppb (19) 1.1 ppb (13) N/A 51.0 μg/m3 (140) 140.0
 
March 3, 2021, 2 p.m. N/A N/A N/A 36.0 ppb (34) N/A 3.0 ppb (5) 3.0 ppb (3) 1.8 ppb (21) N/A 28.0 μg/m3 (85) 85.0
 
March 3, 2021, 1 p.m. N/A N/A N/A 36.0 ppb (34) N/A 2.0 ppb (3) 2.0 ppb (2) 1.3 ppb (15) N/A 30.0 μg/m3 (89) 89.0
 
March 3, 2021, noon N/A N/A N/A 31.0 ppb (30) N/A 5.0 ppb (8) 4.0 ppb (4) 1.0 ppb (12) N/A 31.0 μg/m3 (91) 91.0
 
March 3, 2021, 11 a.m. N/A N/A N/A 26.0 ppb (25) N/A 18.0 ppb (26) 13.0 ppb (13) 0.8 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
March 3, 2021, 10 a.m. N/A N/A N/A 19.0 ppb (18) N/A 8.0 ppb (12) 26.0 ppb (25) 0.8 ppb (10) N/A 25.0 μg/m3 (79) 79.0
 
March 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (77) 77.0
 
March 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
March 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (77) 77.0
 
March 3, 2021, 6 a.m. N/A N/A N/A 27.0 ppb (26) N/A 1.0 ppb (2) 34.0 ppb (32) 1.0 ppb (12) N/A 29.0 μg/m3 (87) 87.0
 
March 3, 2021, 5 a.m. N/A N/A N/A 36.0 ppb (34) N/A 1.0 ppb (2) 29.0 ppb (27) 1.2 ppb (14) N/A 32.0 μg/m3 (93) 93.0
 
March 3, 2021, 4 a.m. N/A N/A N/A 30.0 ppb (29) N/A 1.0 ppb (2) 44.0 ppb (41) 1.2 ppb (14) N/A 44.0 μg/m3 (122) 122.0
 
March 3, 2021, 3 a.m. N/A N/A N/A 26.0 ppb (25) N/A 1.0 ppb (2) 64.0 ppb (81) 1.3 ppb (15) N/A 52.0 μg/m3 (142) 142.0
 
March 3, 2021, 2 a.m. N/A N/A N/A 24.0 ppb (23) N/A 1.0 ppb (2) 67.0 ppb (91) 1.2 ppb (14) N/A 26.0 μg/m3 (81) 91.0
 
March 3, 2021, 1 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (2) 68.0 ppb (94) 1.0 ppb (12) N/A 26.0 μg/m3 (81) 94.0
 
March 3, 2021, midnight N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 79.0 ppb (106) 0.9 ppb (11) N/A 36.0 μg/m3 (103) 106.0
 
March 2, 2021, 11 p.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) 98.0 ppb (116) 0.9 ppb (11) N/A 30.0 μg/m3 (89) 116.0
 
March 2, 2021, 10 p.m. N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) 120.0 ppb (127) 0.8 ppb (10) N/A 34.0 μg/m3 (98) 127.0
 
March 2, 2021, 9 p.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) 131.0 ppb (133) 0.9 ppb (11) N/A 44.0 μg/m3 (122) 133.0
 
March 2, 2021, 8 p.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 127.0 ppb (131) 1.0 ppb (12) N/A 48.0 μg/m3 (132) 132.0
 
March 2, 2021, 7 p.m. N/A N/A N/A 26.0 ppb (25) N/A 2.0 ppb (3) 106.0 ppb (120) 1.2 ppb (14) N/A 55.0 μg/m3 (150) 150.0
 
March 2, 2021, 6 p.m. N/A N/A N/A 36.0 ppb (34) N/A 2.0 ppb (3) 78.0 ppb (105) 1.3 ppb (15) N/A 49.0 μg/m3 (135) 135.0
 
March 2, 2021, 5 p.m. N/A N/A N/A 36.0 ppb (34) N/A 2.0 ppb (3) 51.0 ppb (48) 1.3 ppb (15) N/A 48.0 μg/m3 (132) 132.0
 
March 2, 2021, 4 p.m. N/A N/A N/A 36.0 ppb (34) N/A 2.0 ppb (3) 31.0 ppb (29) 1.3 ppb (15) N/A 49.0 μg/m3 (135) 135.0
 
March 2, 2021, 3 p.m. N/A N/A N/A 39.0 ppb (37) N/A 2.0 ppb (3) 13.0 ppb (13) 1.3 ppb (15) N/A 44.0 μg/m3 (122) 122.0
 
March 2, 2021, 2 p.m. N/A N/A N/A 38.0 ppb (36) N/A 1.0 ppb (2) 5.0 ppb (5) 1.4 ppb (16) N/A 41.0 μg/m3 (115) 115.0
 
March 2, 2021, 1 p.m. N/A N/A N/A 35.0 ppb (34) N/A 1.0 ppb (2) 8.0 ppb (8) 1.1 ppb (13) N/A 38.0 μg/m3 (108) 108.0
 
March 2, 2021, noon N/A N/A N/A 23.0 ppb (22) N/A 0.0 ppb (0) 20.0 ppb (19) 0.9 ppb (11) N/A 38.0 μg/m3 (108) 108.0
 
March 2, 2021, 11 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 29.0 ppb (27) 0.7 ppb (8) N/A 37.0 μg/m3 (105) 105.0
 
March 2, 2021, 10 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 37.0 ppb (35) 0.7 ppb (8) N/A 33.0 μg/m3 (95) 95.0
 
March 2, 2021, 9 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 46.0 ppb (43) 0.7 ppb (8) N/A 33.0 μg/m3 (95) 95.0
 
March 2, 2021, 8 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 47.0 ppb (44) 0.7 ppb (8) N/A 32.0 μg/m3 (93) 93.0
 
March 2, 2021, 7 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 46.0 ppb (43) 0.7 ppb (8) N/A 32.0 μg/m3 (93) 93.0
 
March 2, 2021, 6 a.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) 45.0 ppb (42) 0.8 ppb (10) N/A 36.0 μg/m3 (103) 103.0
 
March 2, 2021, 5 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 43.0 ppb (40) 0.9 ppb (11) N/A 41.0 μg/m3 (115) 115.0
 
March 2, 2021, 4 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 36.0 ppb (34) 1.0 ppb (12) N/A 30.0 μg/m3 (89) 89.0
 
March 2, 2021, 3 a.m. N/A N/A N/A 28.0 ppb (27) N/A 2.0 ppb (3) 54.0 ppb (50) 1.1 ppb (13) N/A 32.0 μg/m3 (93) 93.0
 
March 2, 2021, 2 a.m. N/A N/A N/A 33.0 ppb (32) N/A 2.0 ppb (3) 54.0 ppb (50) 1.2 ppb (14) N/A 27.0 μg/m3 (83) 83.0
 
March 2, 2021, 1 a.m. N/A N/A N/A 21.0 ppb (20) N/A 2.0 ppb (3) 71.0 ppb (101) 1.0 ppb (12) N/A 25.0 μg/m3 (79) 101.0
 
March 2, 2021, midnight N/A N/A N/A 24.0 ppb (23) N/A 3.0 ppb (5) 84.0 ppb (108) 0.9 ppb (11) N/A 21.0 μg/m3 (70) 108.0
 
March 1, 2021, 11 p.m. N/A N/A N/A 19.0 ppb (18) N/A 3.0 ppb (5) 85.0 ppb (109) 0.9 ppb (11) N/A 27.0 μg/m3 (83) 109.0