ID: 130

AQSQID: 060250005

Site Name: Calexico - Ethel Street

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

Updated: Feb. 26, 2021, 8:32 a.m.

Location: Calexico (Andrade Ave), CA

Reporting: True, Located: True

Current AQI: 83.0

Calexico (Andrade Ave) CA, US: 32.67618, -115.48307

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 101.4 μg/m3 (74) 27.0 μg/m3 (83) 83.0
 
Feb. 26, 2021, 6 a.m. 34.3 ppb (33) 3.1 ppb (3) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 6.0 ppb (6) 0.49 ppb (6) 96.4 μg/m3 (72) 28.0 μg/m3 (85) 85.0
 
Feb. 26, 2021, 5 a.m. 18.1 ppb (18) 2.1 ppb (2) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (18) 0.27 ppb (4) 50.0 μg/m3 (47) 9.0 μg/m3 (38) 47.0
 
Feb. 26, 2021, 4 a.m. 11.3 ppb (11) 2.4 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (29) 0.18 ppb (3) 37.2 μg/m3 (35) 4.0 μg/m3 (17) 35.0
 
Feb. 26, 2021, 3 a.m. 18.0 ppb (17) 4.5 ppb (5) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 27.0 ppb (25) 0.26 ppb (4) 44.1 μg/m3 (41) 6.0 μg/m3 (25) 41.0
 
Feb. 26, 2021, 2 a.m. 20.2 ppb (20) 4.6 ppb (5) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 28.0 ppb (26) 0.27 ppb (4) 50.2 μg/m3 (47) 17.0 μg/m3 (62) 62.0
 
Feb. 26, 2021, 1 a.m. 15.2 ppb (15) 3.8 ppb (4) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 35.0 ppb (33) 0.24 ppb (3) N/A N/A 33.0
 
Feb. 26, 2021, midnight 11.1 ppb (11) 5.7 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (40) 0.19 ppb (3) 12.3 μg/m3 (12) 5.0 μg/m3 (21) 40.0
 
Feb. 25, 2021, 11 p.m. 12.3 ppb (12) 7.2 ppb (7) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 18.5 μg/m3 (18) 5.0 μg/m3 (21) 41.0
 
Feb. 25, 2021, 10 p.m. 8.9 ppb (9) 5.1 ppb (5) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.16 ppb (3) 26.5 μg/m3 (25) 1.0 μg/m3 (5) 43.0
 
Feb. 25, 2021, 9 p.m. 8.7 ppb (9) 4.9 ppb (5) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 26.2 μg/m3 (25) 1.0 μg/m3 (5) 43.0
 
Feb. 25, 2021, 8 p.m. 9.4 ppb (9) 5.8 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (42) 0.19 ppb (3) 23.8 μg/m3 (23) 0.0 μg/m3 (0) 42.0
 
Feb. 25, 2021, 7 p.m. 8.9 ppb (9) 5.5 ppb (6) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (42) 0.15 ppb (2) 27.0 μg/m3 (25) 0.0 μg/m3 (0) 42.0
 
Feb. 25, 2021, 6 p.m. 11.5 ppb (11) 7.0 ppb (7) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 32.9 μg/m3 (31) 4.0 μg/m3 (17) 39.0
 
Feb. 25, 2021, 5 p.m. 9.1 ppb (9) 5.4 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (39) 0.16 ppb (3) 62.3 μg/m3 (55) 7.0 μg/m3 (30) 55.0
 
Feb. 25, 2021, 4 p.m. 9.6 ppb (10) 5.7 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) 67.3 μg/m3 (58) 6.0 μg/m3 (25) 58.0
 
Feb. 25, 2021, 3 p.m. 15.7 ppb (15) 6.5 ppb (7) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (31) 0.23 ppb (3) 73.9 μg/m3 (61) 9.0 μg/m3 (38) 61.0
 
Feb. 25, 2021, 2 p.m. 14.5 ppb (14) 6.0 ppb (6) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (29) 0.28 ppb (4) 88.9 μg/m3 (68) 13.0 μg/m3 (53) 68.0
 
Feb. 25, 2021, 1 p.m. 11.0 ppb (11) 5.7 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) 0.18 ppb (3) 89.8 μg/m3 (69) 14.0 μg/m3 (55) 69.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 121.0 μg/m3 (84) 18.0 μg/m3 (64) 84.0
 
Feb. 25, 2021, 11 a.m. 5.2 ppb (5) 2.7 ppb (3) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 157.4 μg/m3 (103) 17.0 μg/m3 (62) 103.0
 
Feb. 25, 2021, 10 a.m. 4.5 ppb (5) 2.2 ppb (3) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 259.3 μg/m3 (154) 32.0 μg/m3 (93) 154.0
 
Feb. 25, 2021, 9 a.m. 7.9 ppb (8) 2.4 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 31.4 μg/m3 (30) 4.0 μg/m3 (17) 30.0
 
Feb. 25, 2021, 8 a.m. 8.0 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 17.1 μg/m3 (16) 1.0 μg/m3 (5) 31.0
 
Feb. 25, 2021, 7 a.m. 6.5 ppb (7) 2.2 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.15 ppb (2) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 37.0
 
Feb. 25, 2021, 6 a.m. 9.7 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (34) 0.15 ppb (2) 25.0 μg/m3 (24) 5.0 μg/m3 (21) 34.0
 
Feb. 25, 2021, 5 a.m. 17.8 ppb (17) 3.6 ppb (4) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 30.0 ppb (28) 0.22 ppb (3) 49.5 μg/m3 (46) 9.0 μg/m3 (38) 46.0
 
Feb. 25, 2021, 4 a.m. 18.3 ppb (18) 2.2 ppb (3) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 33.0 ppb (31) 0.25 ppb (3) 80.1 μg/m3 (64) 11.0 μg/m3 (46) 64.0
 
Feb. 25, 2021, 3 a.m. 39.0 ppb (37) 3.7 ppb (4) N/A 35.0 ppb (34) N/A 2.0 ppb (3) 9.0 ppb (9) 0.43 ppb (5) 91.4 μg/m3 (70) 16.0 μg/m3 (60) 70.0
 
Feb. 25, 2021, 2 a.m. 22.8 ppb (22) 3.0 ppb (3) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 22.0 ppb (21) 0.3 ppb (4) 71.2 μg/m3 (60) 8.0 μg/m3 (34) 60.0
 
Feb. 25, 2021, 1 a.m. 14.6 ppb (14) 3.1 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 37.0 ppb (35) 0.22 ppb (3) 72.9 μg/m3 (60) 9.0 μg/m3 (38) 60.0
 
Feb. 25, 2021, midnight 14.4 ppb (14) 3.4 ppb (4) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 45.0 ppb (42) 0.18 ppb (3) 57.9 μg/m3 (53) 10.0 μg/m3 (42) 53.0
 
Feb. 24, 2021, 11 p.m. 13.9 ppb (14) 4.1 ppb (4) N/A 10.0 ppb (10) N/A 5.0 ppb (8) 53.0 ppb (50) 0.19 ppb (3) 54.1 μg/m3 (51) 10.0 μg/m3 (42) 51.0
 
Feb. 24, 2021, 10 p.m. 14.2 ppb (14) 4.3 ppb (5) N/A 10.0 ppb (10) N/A 3.0 ppb (5) 60.0 ppb (68) 0.21 ppb (3) 54.2 μg/m3 (51) 10.0 μg/m3 (42) 68.0
 
Feb. 24, 2021, 9 p.m. 15.7 ppb (15) 5.1 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 62.0 ppb (74) 0.32 ppb (4) 48.3 μg/m3 (45) 14.0 μg/m3 (55) 74.0
 
Feb. 24, 2021, 8 p.m. 17.0 ppb (17) 5.5 ppb (6) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 56.0 ppb (55) 0.22 ppb (3) 68.6 μg/m3 (58) 14.0 μg/m3 (55) 58.0
 
Feb. 24, 2021, 7 p.m. 21.3 ppb (21) 7.1 ppb (7) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 47.0 ppb (44) 0.26 ppb (4) 76.0 μg/m3 (62) 18.0 μg/m3 (64) 64.0
 
Feb. 24, 2021, 6 p.m. 22.6 ppb (22) 7.9 ppb (8) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 41.0 ppb (38) 0.27 ppb (4) 56.7 μg/m3 (52) 18.0 μg/m3 (64) 64.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A 30.0 ppb (29) N/A 1.0 ppb (2) 29.0 ppb (27) 0.57 ppb (7) 78.5 μg/m3 (63) 25.0 μg/m3 (79) 79.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A 54.0 ppb (51) N/A 2.0 ppb (3) 9.0 ppb (9) 1.43 ppb (16) 184.4 μg/m3 (116) 62.0 μg/m3 (155) 155.0
 
Feb. 24, 2021, 3 p.m. 227.0 ppb (125) 179.9 ppb (116) N/A 47.0 ppb (45) N/A 3.0 ppb (5) 2.0 ppb (2) 2.49 ppb (29) 286.3 μg/m3 (167) 101.0 μg/m3 (175) 175.0
 
Feb. 24, 2021, 2 p.m. 181.8 ppb (117) 153.1 ppb (111) N/A 29.0 ppb (28) N/A 2.0 ppb (3) 1.0 ppb (1) 2.27 ppb (27) 276.9 μg/m3 (162) 65.0 μg/m3 (156) 162.0
 
Feb. 24, 2021, 1 p.m. 170.8 ppb (115) 146.9 ppb (110) N/A 24.0 ppb (23) N/A 1.0 ppb (2) 1.0 ppb (1) 2.08 ppb (24) 204.3 μg/m3 (126) 58.0 μg/m3 (153) 153.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 167.5 μg/m3 (108) 62.0 μg/m3 (155) 155.0
 
Feb. 24, 2021, 11 a.m. 179.0 ppb (116) 150.2 ppb (111) N/A 29.0 ppb (28) N/A 2.0 ppb (3) 1.0 ppb (1) 2.23 ppb (25) 160.4 μg/m3 (104) 67.0 μg/m3 (157) 157.0
 
Feb. 24, 2021, 10 a.m. 166.0 ppb (114) 135.5 ppb (108) N/A 31.0 ppb (30) N/A 2.0 ppb (3) 1.0 ppb (1) 2.04 ppb (23) 159.1 μg/m3 (104) 63.0 μg/m3 (155) 155.0
 
Feb. 24, 2021, 9 a.m. 125.6 ppb (106) 93.4 ppb (93) N/A 32.0 ppb (31) N/A 2.0 ppb (3) 1.0 ppb (1) 1.47 ppb (18) 155.8 μg/m3 (102) 61.0 μg/m3 (154) 154.0
 
Feb. 24, 2021, 8 a.m. 65.7 ppb (64) 37.4 ppb (36) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 0.0 ppb (0) 0.64 ppb (7) 104.7 μg/m3 (76) 31.0 μg/m3 (91) 91.0
 
Feb. 24, 2021, 7 a.m. 106.5 ppb (103) 74.5 ppb (73) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 0.0 ppb (0) 1.12 ppb (13) 138.7 μg/m3 (93) 34.0 μg/m3 (98) 103.0
 
Feb. 24, 2021, 6 a.m. 154.5 ppb (112) 117.6 ppb (105) N/A 37.0 ppb (35) N/A 1.0 ppb (2) 1.0 ppb (1) 1.8 ppb (21) 177.4 μg/m3 (113) 38.0 μg/m3 (108) 113.0
 
Feb. 24, 2021, 5 a.m. 171.6 ppb (115) 133.3 ppb (108) N/A 38.0 ppb (36) N/A 2.0 ppb (3) 1.0 ppb (1) 1.91 ppb (22) 238.3 μg/m3 (143) 40.0 μg/m3 (113) 143.0
 
Feb. 24, 2021, 4 a.m. 147.7 ppb (110) 109.1 ppb (103) N/A 38.0 ppb (36) N/A 1.0 ppb (2) 1.0 ppb (1) 1.9 ppb (22) 180.9 μg/m3 (114) 29.0 μg/m3 (87) 114.0
 
Feb. 24, 2021, 3 a.m. 110.1 ppb (103) 68.9 ppb (67) N/A 41.0 ppb (39) N/A 1.0 ppb (2) 0.0 ppb (0) 1.23 ppb (14) 190.8 μg/m3 (119) 24.0 μg/m3 (77) 119.0
 
Feb. 24, 2021, 2 a.m. 53.1 ppb (51) 22.9 ppb (22) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 6.0 ppb (6) 0.86 ppb (11) 116.5 μg/m3 (82) 8.0 μg/m3 (34) 82.0
 
Feb. 24, 2021, 1 a.m. 9.3 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 41.0 ppb (38) 0.2 ppb (3) 26.2 μg/m3 (25) 4.0 μg/m3 (17) 38.0
 
Feb. 24, 2021, midnight 8.5 ppb (9) 3.4 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 46.0 ppb (43) 0.14 ppb (2) 14.4 μg/m3 (14) 3.0 μg/m3 (13) 43.0
 
Feb. 23, 2021, 11 p.m. 6.2 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (44) 0.14 ppb (2) 12.2 μg/m3 (12) 3.0 μg/m3 (13) 44.0
 
Feb. 23, 2021, 10 p.m. 8.2 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.2 ppb (3) 16.4 μg/m3 (16) 2.0 μg/m3 (9) 43.0
 
Feb. 23, 2021, 9 p.m. 7.9 ppb (8) 3.7 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (42) 0.14 ppb (2) 12.5 μg/m3 (12) 0.0 μg/m3 (0) 42.0
 
Feb. 23, 2021, 8 p.m. 8.4 ppb (8) 4.1 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) 0.14 ppb (2) 20.0 μg/m3 (19) 4.0 μg/m3 (17) 41.0
 
Feb. 23, 2021, 7 p.m. 10.8 ppb (11) 4.8 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (38) 0.16 ppb (3) 22.3 μg/m3 (21) 6.0 μg/m3 (25) 38.0
 
Feb. 23, 2021, 6 p.m. 11.7 ppb (12) 5.4 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) 32.8 μg/m3 (31) 5.0 μg/m3 (21) 31.0
 
Feb. 23, 2021, 5 p.m. 11.0 ppb (11) 5.1 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (29) 0.18 ppb (3) 45.0 μg/m3 (42) 8.0 μg/m3 (34) 42.0
 
Feb. 23, 2021, 4 p.m. 16.3 ppb (16) 7.6 ppb (8) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) 0.23 ppb (3) 37.2 μg/m3 (35) 7.0 μg/m3 (30) 35.0
 
Feb. 23, 2021, 3 p.m. 28.4 ppb (27) 12.0 ppb (12) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 16.0 ppb (15) 0.52 ppb (6) 50.0 μg/m3 (47) 7.0 μg/m3 (30) 47.0
 
Feb. 23, 2021, 2 p.m. 23.7 ppb (23) 7.2 ppb (7) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 14.0 ppb (13) 0.39 ppb (5) 32.3 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
Feb. 23, 2021, 1 p.m. 37.3 ppb (36) 13.0 ppb (13) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 4.0 ppb (4) 0.38 ppb (5) 38.0 μg/m3 (36) 3.0 μg/m3 (13) 36.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 29.4 μg/m3 (28) 2.0 μg/m3 (9) 28.0
 
Feb. 23, 2021, 11 a.m. 11.9 ppb (12) 4.2 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) 15.1 μg/m3 (14) 1.0 μg/m3 (5) 22.0
 
Feb. 23, 2021, 10 a.m. 12.6 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) 0.19 ppb (3) 13.8 μg/m3 (13) 3.0 μg/m3 (13) 20.0
 
Feb. 23, 2021, 9 a.m. 10.6 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.17 ppb (3) 16.1 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Feb. 23, 2021, 8 a.m. 12.2 ppb (12) 2.9 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 18.0 ppb (17) 0.21 ppb (3) 19.2 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
Feb. 23, 2021, 7 a.m. 12.7 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (17) 0.21 ppb (3) 22.9 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
Feb. 23, 2021, 6 a.m. 38.7 ppb (37) 17.6 ppb (17) N/A 21.0 ppb (20) N/A 1.0 ppb (2) 10.0 ppb (10) 0.38 ppb (5) 79.2 μg/m3 (63) 19.0 μg/m3 (66) 66.0
 
Feb. 23, 2021, 5 a.m. 94.5 ppb (95) 58.5 ppb (56) N/A 36.0 ppb (34) N/A 2.0 ppb (3) 0.0 ppb (0) 1.02 ppb (12) 159.7 μg/m3 (104) 42.0 μg/m3 (118) 118.0
 
Feb. 23, 2021, 4 a.m. 39.3 ppb (38) 5.9 ppb (6) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 3.0 ppb (3) 0.5 ppb (6) 64.7 μg/m3 (56) 16.0 μg/m3 (60) 60.0
 
Feb. 23, 2021, 3 a.m. 32.4 ppb (31) 7.0 ppb (7) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 14.0 ppb (13) 0.46 ppb (6) 37.2 μg/m3 (35) 8.0 μg/m3 (34) 35.0
 
Feb. 23, 2021, 2 a.m. 37.0 ppb (35) 10.3 ppb (10) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 11.0 ppb (11) 0.49 ppb (6) 43.7 μg/m3 (41) 4.0 μg/m3 (17) 41.0
 
Feb. 23, 2021, 1 a.m. 13.8 ppb (14) 2.8 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 33.0 ppb (31) 0.2 ppb (3) 18.2 μg/m3 (17) 5.0 μg/m3 (21) 31.0
 
Feb. 23, 2021, midnight 7.1 ppb (7) 2.5 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 47.0 ppb (44) 0.15 ppb (2) 23.8 μg/m3 (23) 5.0 μg/m3 (21) 44.0
 
Feb. 22, 2021, 11 p.m. 10.6 ppb (10) 4.5 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 47.0 ppb (44) 0.15 ppb (2) 24.1 μg/m3 (23) 4.0 μg/m3 (17) 44.0
 
Feb. 22, 2021, 10 p.m. 10.4 ppb (10) 5.4 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 14.0 μg/m3 (13) 1.0 μg/m3 (5) 40.0
 
Feb. 22, 2021, 9 p.m. 10.0 ppb (10) 5.2 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (39) 0.19 ppb (3) 14.1 μg/m3 (14) 3.0 μg/m3 (13) 39.0
 
Feb. 22, 2021, 8 p.m. 9.5 ppb (9) 5.1 ppb (5) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) 0.16 ppb (3) 12.0 μg/m3 (12) 0.0 μg/m3 (0) 38.0
 
Feb. 22, 2021, 7 p.m. 9.6 ppb (10) 5.4 ppb (6) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (38) 0.16 ppb (3) 10.6 μg/m3 (10) 0.0 μg/m3 (0) 38.0
 
Feb. 22, 2021, 6 p.m. 11.0 ppb (11) 5.8 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (35) 0.15 ppb (2) 14.9 μg/m3 (14) -1.0 μg/m3 (0) 35.0
 
Feb. 22, 2021, 5 p.m. 11.9 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 33.6 μg/m3 (32) 0.0 μg/m3 (0) 32.0
 
Feb. 22, 2021, 4 p.m. 17.6 ppb (17) 8.6 ppb (9) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 30.9 μg/m3 (29) 3.0 μg/m3 (13) 29.0
 
Feb. 22, 2021, 3 p.m. 31.8 ppb (30) 14.3 ppb (14) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 14.0 ppb (13) 0.47 ppb (6) 43.9 μg/m3 (41) 4.0 μg/m3 (17) 41.0
 
Feb. 22, 2021, 2 p.m. 27.9 ppb (27) 8.8 ppb (9) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (8) 0.49 ppb (6) 50.3 μg/m3 (47) 1.0 μg/m3 (5) 47.0
 
Feb. 22, 2021, 1 p.m. 20.8 ppb (20) 7.2 ppb (7) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 15.0 ppb (14) 0.29 ppb (4) 26.6 μg/m3 (25) 0.0 μg/m3 (0) 25.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) 0.0 μg/m3 (0) 15.0
 
Feb. 22, 2021, 11 a.m. 9.9 ppb (10) 3.4 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (21) 0.16 ppb (3) 22.1 μg/m3 (21) 3.0 μg/m3 (13) 21.0
 
Feb. 22, 2021, 10 a.m. 8.3 ppb (8) 2.6 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) 18.6 μg/m3 (18) 4.0 μg/m3 (17) 24.0
 
Feb. 22, 2021, 9 a.m. 10.0 ppb (10) 3.5 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 13.4 μg/m3 (13) 3.0 μg/m3 (13) 23.0
 
Feb. 22, 2021, 8 a.m. 8.4 ppb (8) 2.6 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 22.0 ppb (21) 0.23 ppb (3) 36.1 μg/m3 (34) 20.0 μg/m3 (68) 68.0
 
Feb. 22, 2021, 7 a.m. 12.2 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 18.0 ppb (17) 0.3 ppb (4) 38.2 μg/m3 (36) 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 6 a.m. 15.8 ppb (15) 4.3 ppb (5) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 18.0 ppb (17) 0.79 ppb (10) 84.7 μg/m3 (66) 58.0 μg/m3 (153) 153.0
 
Feb. 22, 2021, 5 a.m. 17.9 ppb (17) 5.6 ppb (6) N/A 13.0 ppb (13) N/A 2.0 ppb (3) 21.0 ppb (20) 0.92 ppb (11) 80.0 μg/m3 (64) N/A 64.0
 
Feb. 22, 2021, 4 a.m. 19.1 ppb (19) 5.1 ppb (5) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 21.0 ppb (20) 0.48 ppb (6) 43.0 μg/m3 (40) 15.0 μg/m3 (58) 58.0
 
Feb. 22, 2021, 3 a.m. 20.5 ppb (20) 4.0 ppb (4) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (17) 0.32 ppb (4) 30.6 μg/m3 (29) 0.0 μg/m3 (0) 29.0
 
Feb. 22, 2021, 2 a.m. 13.6 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (25) 0.26 ppb (4) 23.8 μg/m3 (23) 0.0 μg/m3 (0) 25.0
 
Feb. 22, 2021, 1 a.m. 8.5 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) 11.7 μg/m3 (11) 2.0 μg/m3 (9) 33.0
 
Feb. 22, 2021, midnight 6.8 ppb (7) 3.6 ppb (4) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (39) 0.19 ppb (3) 4.5 μg/m3 (5) 0.0 μg/m3 (0) 39.0
 
Feb. 21, 2021, 11 p.m. 5.5 ppb (6) 3.3 ppb (4) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 7.3 μg/m3 (7) -2.0 μg/m3 (0) 40.0
 
Feb. 21, 2021, 10 p.m. 5.0 ppb (5) 3.0 ppb (3) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 9.4 μg/m3 (9) 0.0 μg/m3 (0) 40.0
 
Feb. 21, 2021, 9 p.m. 6.1 ppb (6) 3.8 ppb (4) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 8.9 μg/m3 (9) 0.0 μg/m3 (0) 39.0
 
Feb. 21, 2021, 8 p.m. 5.7 ppb (6) 3.5 ppb (4) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) 0.14 ppb (2) 9.0 μg/m3 (9) -2.0 μg/m3 (0) 39.0
 
Feb. 21, 2021, 7 p.m. 4.8 ppb (5) 3.1 ppb (3) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 8.2 μg/m3 (8) N/A 39.0
 
Feb. 21, 2021, 6 p.m. 5.3 ppb (5) 3.4 ppb (4) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.15 ppb (2) 11.2 μg/m3 (11) -1.0 μg/m3 (0) 37.0
 
Feb. 21, 2021, 5 p.m. 5.6 ppb (6) 3.3 ppb (4) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 22.3 μg/m3 (21) 1.0 μg/m3 (5) 35.0
 
Feb. 21, 2021, 4 p.m. 6.6 ppb (7) 3.4 ppb (4) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.16 ppb (3) 30.8 μg/m3 (29) 3.0 μg/m3 (13) 29.0
 
Feb. 21, 2021, 3 p.m. 8.6 ppb (9) 3.9 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.17 ppb (3) 44.0 μg/m3 (41) 5.0 μg/m3 (21) 41.0
 
Feb. 21, 2021, 2 p.m. 7.9 ppb (8) 3.2 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) 39.8 μg/m3 (37) 8.0 μg/m3 (34) 37.0
 
Feb. 21, 2021, 1 p.m. 9.8 ppb (10) 2.5 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) 0.25 ppb (3) 44.8 μg/m3 (42) 14.0 μg/m3 (55) 55.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 46.9 μg/m3 (44) 12.0 μg/m3 (50) 50.0
 
Feb. 21, 2021, 11 a.m. 7.0 ppb (7) 2.6 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 26.0 ppb (25) 0.41 ppb (5) 53.0 μg/m3 (50) 27.0 μg/m3 (83) 83.0
 
Feb. 21, 2021, 10 a.m. 6.2 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) 34.3 μg/m3 (32) 5.0 μg/m3 (21) 32.0
 
Feb. 21, 2021, 9 a.m. 8.1 ppb (8) 2.4 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.16 ppb (3) 37.4 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
Feb. 21, 2021, 8 a.m. 7.0 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.16 ppb (3) 31.8 μg/m3 (30) 7.0 μg/m3 (30) 30.0
 
Feb. 21, 2021, 7 a.m. 10.3 ppb (10) 3.1 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.17 ppb (3) 26.7 μg/m3 (25) 3.0 μg/m3 (13) 25.0
 
Feb. 21, 2021, 6 a.m. 9.9 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.19 ppb (3) 18.8 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2021, 5 a.m. 9.2 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.25 ppb (3) 21.0 μg/m3 (20) 6.0 μg/m3 (25) 28.0
 
Feb. 21, 2021, 4 a.m. 8.3 ppb (8) 3.1 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.15 ppb (2) 30.1 μg/m3 (28) 5.0 μg/m3 (21) 32.0
 
Feb. 21, 2021, 3 a.m. 7.9 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) 0.15 ppb (2) 62.0 μg/m3 (55) 6.0 μg/m3 (25) 55.0
 
Feb. 21, 2021, 2 a.m. 9.7 ppb (10) 3.8 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) 0.17 ppb (3) 66.2 μg/m3 (57) 6.0 μg/m3 (25) 57.0
 
Feb. 21, 2021, 1 a.m. 9.7 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 44.0 ppb (41) 0.2 ppb (3) 80.5 μg/m3 (64) 10.0 μg/m3 (42) 64.0
 
Feb. 21, 2021, midnight 9.6 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 50.0 ppb (47) 0.18 ppb (3) 54.2 μg/m3 (51) 10.0 μg/m3 (42) 51.0
 
Feb. 20, 2021, 11 p.m. 8.7 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 53.0 ppb (50) 0.15 ppb (2) 26.1 μg/m3 (25) 5.0 μg/m3 (21) 50.0
 
Feb. 20, 2021, 10 p.m. 8.7 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 52.0 ppb (49) 0.15 ppb (2) 35.7 μg/m3 (34) 6.0 μg/m3 (25) 49.0
 
Feb. 20, 2021, 9 p.m. 9.3 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 51.0 ppb (48) 0.16 ppb (3) 54.1 μg/m3 (51) 7.0 μg/m3 (30) 51.0
 
Feb. 20, 2021, 8 p.m. 12.5 ppb (12) 4.2 ppb (4) N/A 8.0 ppb (8) N/A 3.0 ppb (5) 44.0 ppb (41) 0.19 ppb (3) 53.7 μg/m3 (50) 9.0 μg/m3 (38) 50.0
 
Feb. 20, 2021, 7 p.m. 18.3 ppb (18) 5.9 ppb (6) N/A 12.0 ppb (12) N/A 5.0 ppb (8) 42.0 ppb (39) 0.27 ppb (4) 81.6 μg/m3 (65) 15.0 μg/m3 (58) 65.0
 
Feb. 20, 2021, 6 p.m. 60.8 ppb (59) 23.5 ppb (23) N/A 37.0 ppb (35) N/A 6.0 ppb (9) 28.0 ppb (26) 0.46 ppb (6) 159.5 μg/m3 (104) 44.0 μg/m3 (122) 122.0
 
Feb. 20, 2021, 5 p.m. 46.9 ppb (45) 16.6 ppb (16) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 29.0 ppb (27) 0.68 ppb (8) 77.3 μg/m3 (63) 17.0 μg/m3 (62) 63.0
 
Feb. 20, 2021, 4 p.m. 64.0 ppb (62) 29.9 ppb (29) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 17.0 ppb (16) 0.93 ppb (11) 63.0 μg/m3 (55) 27.0 μg/m3 (83) 83.0
 
Feb. 20, 2021, 3 p.m. 118.2 ppb (105) 82.1 ppb (81) N/A 36.0 ppb (34) N/A 2.0 ppb (3) 3.0 ppb (3) 1.62 ppb (19) 141.9 μg/m3 (95) 45.0 μg/m3 (125) 125.0
 
Feb. 20, 2021, 2 p.m. 91.0 ppb (91) 65.3 ppb (64) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 0.0 ppb (0) 1.05 ppb (13) 142.9 μg/m3 (95) 35.0 μg/m3 (100) 100.0
 
Feb. 20, 2021, 1 p.m. 69.4 ppb (68) 44.6 ppb (43) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 0.0 ppb (0) 0.94 ppb (11) 107.6 μg/m3 (78) 30.0 μg/m3 (89) 89.0
 
Feb. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 75.3 μg/m3 (62) 30.0 μg/m3 (89) 89.0
 
Feb. 20, 2021, 11 a.m. 89.6 ppb (89) 59.6 ppb (57) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 0.0 ppb (0) 1.0 ppb (12) 84.7 μg/m3 (66) 33.0 μg/m3 (95) 95.0
 
Feb. 20, 2021, 10 a.m. 99.9 ppb (100) 66.9 ppb (65) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 0.0 ppb (0) 1.24 ppb (14) 99.6 μg/m3 (74) 37.0 μg/m3 (105) 105.0
 
Feb. 20, 2021, 9 a.m. 88.7 ppb (88) 55.2 ppb (53) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 0.0 ppb (0) 1.18 ppb (14) 96.3 μg/m3 (72) 31.0 μg/m3 (91) 91.0
 
Feb. 20, 2021, 8 a.m. 83.5 ppb (83) 48.3 ppb (46) N/A 35.0 ppb (34) N/A 1.0 ppb (2) 0.0 ppb (0) 1.08 ppb (13) 75.5 μg/m3 (62) 27.0 μg/m3 (83) 83.0
 
Feb. 20, 2021, 7 a.m. 79.5 ppb (79) 40.7 ppb (39) N/A 39.0 ppb (37) N/A 1.0 ppb (2) 0.0 ppb (0) 0.91 ppb (11) 80.2 μg/m3 (64) 26.0 μg/m3 (81) 81.0
 
Feb. 20, 2021, 6 a.m. 110.4 ppb (103) 73.4 ppb (72) N/A 37.0 ppb (35) N/A 1.0 ppb (2) 1.0 ppb (1) 1.22 ppb (14) 144.1 μg/m3 (96) 31.0 μg/m3 (91) 103.0
 
Feb. 20, 2021, 5 a.m. 78.8 ppb (78) 48.2 ppb (46) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 0.0 ppb (0) 1.08 ppb (13) 142.6 μg/m3 (95) 23.0 μg/m3 (74) 95.0
 
Feb. 20, 2021, 4 a.m. 82.7 ppb (82) 48.3 ppb (46) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 1.0 ppb (1) 1.11 ppb (13) 120.7 μg/m3 (84) 20.0 μg/m3 (68) 84.0
 
Feb. 20, 2021, 3 a.m. 65.7 ppb (64) 29.6 ppb (28) N/A 36.0 ppb (34) N/A 1.0 ppb (2) 1.0 ppb (1) 0.95 ppb (11) 157.2 μg/m3 (103) 26.0 μg/m3 (81) 103.0
 
Feb. 20, 2021, 2 a.m. 47.8 ppb (46) 16.8 ppb (16) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 12.0 ppb (12) 0.52 ppb (6) 79.8 μg/m3 (64) 10.0 μg/m3 (42) 64.0
 
Feb. 20, 2021, 1 a.m. 21.4 ppb (21) 7.2 ppb (7) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 34.0 ppb (32) 0.34 ppb (4) 27.9 μg/m3 (26) 4.0 μg/m3 (17) 32.0
 
Feb. 20, 2021, midnight 13.9 ppb (14) 5.1 ppb (5) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) N/A 7.0 μg/m3 (30) 41.0
 
Feb. 19, 2021, 11 p.m. 9.1 ppb (9) 4.5 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 47.0 ppb (44) 0.19 ppb (3) N/A N/A 44.0
 
Feb. 19, 2021, 10 p.m. 10.8 ppb (11) 5.8 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 45.0 ppb (42) 0.15 ppb (2) 11.2 μg/m3 (11) 2.0 μg/m3 (9) 42.0
 
Feb. 19, 2021, 9 p.m. 8.9 ppb (9) 5.3 ppb (5) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 9.8 μg/m3 (10) 1.0 μg/m3 (5) 43.0
 
Feb. 19, 2021, 8 p.m. 10.0 ppb (10) 5.6 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (40) 0.21 ppb (3) 9.6 μg/m3 (9) -2.0 μg/m3 (0) 40.0
 
Feb. 19, 2021, 7 p.m. 9.5 ppb (9) 4.2 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (38) 0.15 ppb (2) 11.2 μg/m3 (11) 1.0 μg/m3 (5) 38.0
 
Feb. 19, 2021, 6 p.m. 10.1 ppb (10) 4.6 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) 0.17 ppb (3) 23.9 μg/m3 (23) 3.0 μg/m3 (13) 33.0
 
Feb. 19, 2021, 5 p.m. 13.6 ppb (13) 6.8 ppb (7) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.18 ppb (3) 24.1 μg/m3 (23) 1.0 μg/m3 (5) 27.0
 
Feb. 19, 2021, 4 p.m. 17.4 ppb (17) 8.1 ppb (8) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.21 ppb (3) 26.6 μg/m3 (25) 0.0 μg/m3 (0) 25.0
 
Feb. 19, 2021, 3 p.m. 59.3 ppb (57) 35.5 ppb (34) N/A 24.0 ppb (23) N/A 1.0 ppb (2) 7.0 ppb (7) 0.65 ppb (8) 120.7 μg/m3 (84) 19.0 μg/m3 (66) 84.0
 
Feb. 19, 2021, 2 p.m. 36.5 ppb (35) 13.8 ppb (14) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 3.0 ppb (3) 0.53 ppb (6) 49.7 μg/m3 (47) 3.0 μg/m3 (13) 47.0
 
Feb. 19, 2021, 1 p.m. 50.8 ppb (48) 26.2 ppb (25) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 2.0 ppb (2) 0.54 ppb (6) 37.0 μg/m3 (35) 5.0 μg/m3 (21) 48.0
 
Feb. 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.6 μg/m3 (19) 3.0 μg/m3 (13) 19.0
 
Feb. 19, 2021, 11 a.m. 13.5 ppb (13) 4.8 ppb (5) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) 18.1 μg/m3 (17) 2.0 μg/m3 (9) 20.0
 
Feb. 19, 2021, 10 a.m. 19.0 ppb (18) 6.3 ppb (6) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 6.0 ppb (6) 0.21 ppb (3) 28.0 μg/m3 (26) 4.0 μg/m3 (17) 26.0
 
Feb. 19, 2021, 9 a.m. 14.6 ppb (14) 3.3 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 11.0 ppb (11) 0.2 ppb (3) 34.6 μg/m3 (33) 3.0 μg/m3 (13) 33.0
 
Feb. 19, 2021, 8 a.m. 11.5 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) 20.0 μg/m3 (19) 2.0 μg/m3 (9) 19.0