ID: 130

AQSQID: 060250005

Site Name: Calexico - Ethel Street

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

Updated: May 11, 2021, 3:48 p.m.

Location: Calexico (Andrade Ave), CA

Reporting: True, Located: True

Current AQI: 69.0

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
May 11, 2021, 2 p.m. 40.1 ppb (38) 15.4 ppb (15) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 16.0 ppb (15) 0.44 ppb (5) 91.0 μg/m3 (69) 13.0 μg/m3 (53) 69.0
 
May 11, 2021, 1 p.m. 14.3 ppb (14) 4.9 ppb (5) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (17) 0.23 ppb (3) 49.2 μg/m3 (46) 13.0 μg/m3 (53) 53.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 41.8 μg/m3 (39) 8.0 μg/m3 (34) 39.0
 
May 11, 2021, 11 a.m. 8.1 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) 0.17 ppb (3) 34.6 μg/m3 (33) 9.0 μg/m3 (38) 38.0
 
May 11, 2021, 10 a.m. 6.5 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.16 ppb (3) 25.6 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
May 11, 2021, 9 a.m. 6.4 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.15 ppb (2) 24.4 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
May 11, 2021, 8 a.m. 6.3 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.16 ppb (3) 31.0 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
May 11, 2021, 7 a.m. 6.9 ppb (7) 2.4 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.17 ppb (3) 33.1 μg/m3 (31) 6.0 μg/m3 (25) 31.0
 
May 11, 2021, 6 a.m. 6.3 ppb (6) 2.3 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.16 ppb (3) 35.6 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
May 11, 2021, 5 a.m. 11.2 ppb (11) 3.2 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) 32.1 μg/m3 (30) 8.0 μg/m3 (34) 34.0
 
May 11, 2021, 4 a.m. 7.3 ppb (7) 2.6 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 32.5 μg/m3 (31) 9.0 μg/m3 (38) 38.0
 
May 11, 2021, 3 a.m. 6.5 ppb (7) 2.3 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (39) 0.16 ppb (3) 41.6 μg/m3 (39) 8.0 μg/m3 (34) 39.0
 
May 11, 2021, 2 a.m. 5.2 ppb (5) 2.2 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (43) 0.14 ppb (2) 41.8 μg/m3 (39) 5.0 μg/m3 (21) 43.0
 
May 11, 2021, 1 a.m. 5.7 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 54.0 ppb (50) 0.15 ppb (2) 35.7 μg/m3 (34) 6.0 μg/m3 (25) 50.0
 
May 11, 2021, midnight 6.7 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 60.0 ppb (68) 0.16 ppb (3) 31.4 μg/m3 (30) 7.0 μg/m3 (30) 68.0
 
May 10, 2021, 11 p.m. 7.3 ppb (7) 3.4 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 62.0 ppb (74) 0.15 ppb (2) 30.2 μg/m3 (28) 7.0 μg/m3 (30) 74.0
 
May 10, 2021, 10 p.m. 7.1 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 60.0 ppb (68) 0.15 ppb (2) 28.2 μg/m3 (27) 3.0 μg/m3 (13) 68.0
 
May 10, 2021, 9 p.m. 6.6 ppb (7) 3.3 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 58.0 ppb (61) 0.14 ppb (2) 29.8 μg/m3 (28) 5.0 μg/m3 (21) 61.0
 
May 10, 2021, 8 p.m. 9.9 ppb (10) 4.3 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 61.0 ppb (71) 0.17 ppb (3) 33.5 μg/m3 (32) 6.0 μg/m3 (25) 71.0
 
May 10, 2021, 7 p.m. 8.5 ppb (9) 3.5 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 66.0 ppb (87) 0.21 ppb (3) 58.5 μg/m3 (53) 5.0 μg/m3 (21) 87.0
 
May 10, 2021, 6 p.m. 9.1 ppb (9) 3.7 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 61.0 ppb (71) 0.18 ppb (3) 40.2 μg/m3 (38) 3.0 μg/m3 (13) 71.0
 
May 10, 2021, 5 p.m. 10.5 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 54.0 ppb (50) 0.23 ppb (3) 37.3 μg/m3 (35) 5.0 μg/m3 (21) 50.0
 
May 10, 2021, 4 p.m. 13.9 ppb (14) 4.9 ppb (5) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 47.0 ppb (44) 0.23 ppb (3) 55.8 μg/m3 (52) 8.0 μg/m3 (34) 52.0
 
May 10, 2021, 3 p.m. 25.6 ppb (25) 9.3 ppb (9) N/A 16.0 ppb (16) N/A 2.0 ppb (3) 30.0 ppb (28) 0.35 ppb (4) 74.3 μg/m3 (61) 13.0 μg/m3 (53) 61.0
 
May 10, 2021, 2 p.m. 24.7 ppb (24) 8.8 ppb (9) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 24.0 ppb (23) 0.32 ppb (4) 52.7 μg/m3 (49) 10.0 μg/m3 (42) 49.0
 
May 10, 2021, 1 p.m. 16.3 ppb (16) 5.5 ppb (6) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 20.0 ppb (19) 0.25 ppb (3) 45.0 μg/m3 (42) 7.0 μg/m3 (30) 42.0
 
May 10, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 30.4 μg/m3 (29) 3.0 μg/m3 (13) 29.0
 
May 10, 2021, 11 a.m. 13.1 ppb (13) 4.7 ppb (5) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.23 ppb (3) 28.0 μg/m3 (26) 1.0 μg/m3 (5) 26.0
 
May 10, 2021, 10 a.m. 6.1 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 28.6 μg/m3 (27) 4.0 μg/m3 (17) 27.0
 
May 10, 2021, 9 a.m. 5.4 ppb (6) 2.2 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 24.6 μg/m3 (23) 5.0 μg/m3 (21) 28.0
 
May 10, 2021, 8 a.m. 5.1 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 24.6 μg/m3 (23) 4.0 μg/m3 (17) 27.0
 
May 10, 2021, 7 a.m. 6.0 ppb (6) 2.7 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.15 ppb (2) 40.2 μg/m3 (38) 5.0 μg/m3 (21) 38.0
 
May 10, 2021, 6 a.m. 14.3 ppb (14) 3.2 ppb (4) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 24.0 ppb (23) 0.22 ppb (3) 43.9 μg/m3 (41) 6.0 μg/m3 (25) 41.0
 
May 10, 2021, 5 a.m. 14.6 ppb (14) 3.5 ppb (4) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 29.0 ppb (27) 0.21 ppb (3) 53.3 μg/m3 (50) 10.0 μg/m3 (42) 50.0
 
May 10, 2021, 4 a.m. 13.4 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 30.0 ppb (28) 0.26 ppb (4) 67.7 μg/m3 (58) 11.0 μg/m3 (46) 58.0
 
May 10, 2021, 3 a.m. 10.7 ppb (11) 2.2 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 36.0 ppb (34) 0.16 ppb (3) 61.1 μg/m3 (55) 9.0 μg/m3 (38) 55.0
 
May 10, 2021, 2 a.m. 10.5 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 38.0 ppb (36) 0.15 ppb (2) 61.9 μg/m3 (55) 9.0 μg/m3 (38) 55.0
 
May 10, 2021, 1 a.m. 8.9 ppb (9) 2.7 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 41.0 ppb (38) 0.14 ppb (2) 88.4 μg/m3 (68) 14.0 μg/m3 (55) 68.0
 
May 10, 2021, midnight 4.7 ppb (5) 2.5 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 46.0 ppb (43) 0.12 ppb (2) 75.5 μg/m3 (62) 10.0 μg/m3 (42) 62.0
 
May 9, 2021, 11 p.m. 4.6 ppb (5) 2.6 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 50.0 ppb (47) 0.12 ppb (2) 47.1 μg/m3 (44) 5.0 μg/m3 (21) 47.0
 
May 9, 2021, 10 p.m. 4.8 ppb (5) 2.6 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 52.0 ppb (49) 0.13 ppb (2) 40.1 μg/m3 (38) 7.0 μg/m3 (30) 49.0
 
May 9, 2021, 9 p.m. 5.9 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 52.0 ppb (49) 0.14 ppb (2) 45.2 μg/m3 (42) 6.0 μg/m3 (25) 49.0
 
May 9, 2021, 8 p.m. 5.6 ppb (6) 2.9 ppb (3) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 55.0 ppb (51) 0.15 ppb (2) 41.5 μg/m3 (39) 6.0 μg/m3 (25) 51.0
 
May 9, 2021, 7 p.m. 6.7 ppb (7) 3.3 ppb (4) N/A 3.0 ppb (3) N/A 3.0 ppb (5) 59.0 ppb (65) 0.18 ppb (3) 45.5 μg/m3 (43) 7.0 μg/m3 (30) 65.0
 
May 9, 2021, 6 p.m. 7.3 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 61.0 ppb (71) 0.2 ppb (3) 40.1 μg/m3 (38) 7.0 μg/m3 (30) 71.0
 
May 9, 2021, 5 p.m. 8.3 ppb (8) 3.5 ppb (4) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 53.0 ppb (50) 0.21 ppb (3) 36.3 μg/m3 (34) 11.0 μg/m3 (46) 50.0
 
May 9, 2021, 4 p.m. 10.6 ppb (10) 4.6 ppb (5) N/A 6.0 ppb (6) N/A 3.0 ppb (5) 37.0 ppb (35) 0.2 ppb (3) 35.3 μg/m3 (33) 10.0 μg/m3 (42) 42.0
 
May 9, 2021, 3 p.m. 9.1 ppb (9) 4.1 ppb (4) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 29.0 ppb (27) 0.2 ppb (3) 32.6 μg/m3 (31) 7.0 μg/m3 (30) 31.0
 
May 9, 2021, 2 p.m. 20.2 ppb (20) 7.7 ppb (8) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 17.0 ppb (16) 0.18 ppb (3) 40.1 μg/m3 (38) 17.0 μg/m3 (62) 62.0
 
May 9, 2021, 1 p.m. 14.8 ppb (14) 4.8 ppb (5) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) 0.22 ppb (3) 36.9 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
May 9, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 23.7 μg/m3 (22) 7.0 μg/m3 (30) 30.0
 
May 9, 2021, 11 a.m. 6.9 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) 28.5 μg/m3 (27) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 10 a.m. 5.8 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) 25.3 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
May 9, 2021, 9 a.m. 4.8 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (14) 0.15 ppb (2) 29.6 μg/m3 (28) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 8 a.m. 8.1 ppb (8) 2.6 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (13) 0.18 ppb (3) 41.2 μg/m3 (39) 8.0 μg/m3 (34) 39.0
 
May 9, 2021, 7 a.m. 15.8 ppb (15) 3.7 ppb (4) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 11.0 ppb (11) 0.26 ppb (4) 63.3 μg/m3 (56) 8.0 μg/m3 (34) 56.0
 
May 9, 2021, 6 a.m. 19.1 ppb (19) 2.9 ppb (3) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 12.0 ppb (12) 0.34 ppb (4) 75.3 μg/m3 (62) 18.0 μg/m3 (64) 64.0
 
May 9, 2021, 5 a.m. 17.3 ppb (17) 3.2 ppb (4) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 19.0 ppb (18) 0.31 ppb (4) 85.8 μg/m3 (67) 24.0 μg/m3 (77) 77.0
 
May 9, 2021, 4 a.m. 21.7 ppb (21) 4.0 ppb (4) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 22.0 ppb (21) 0.42 ppb (5) 78.6 μg/m3 (63) 10.0 μg/m3 (42) 63.0
 
May 9, 2021, 3 a.m. 14.0 ppb (14) 2.9 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 38.0 ppb (36) 0.31 ppb (4) 72.1 μg/m3 (60) 9.0 μg/m3 (38) 60.0
 
May 9, 2021, 2 a.m. 7.2 ppb (7) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 56.0 ppb (55) 0.19 ppb (3) 36.0 μg/m3 (34) 5.0 μg/m3 (21) 55.0
 
May 9, 2021, 1 a.m. 5.6 ppb (6) 2.3 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 65.0 ppb (84) 0.14 ppb (2) 30.9 μg/m3 (29) 5.0 μg/m3 (21) 84.0
 
May 9, 2021, midnight 6.1 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 66.0 ppb (87) 0.17 ppb (3) 30.0 μg/m3 (28) 7.0 μg/m3 (30) 87.0
 
May 8, 2021, 11 p.m. 6.8 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 65.0 ppb (84) 0.14 ppb (2) 27.8 μg/m3 (26) 4.0 μg/m3 (17) 84.0
 
May 8, 2021, 10 p.m. 6.0 ppb (6) 3.5 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 63.0 ppb (78) 0.13 ppb (2) 25.9 μg/m3 (24) N/A 78.0
 
May 8, 2021, 9 p.m. 7.6 ppb (8) 3.2 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 62.0 ppb (74) 0.15 ppb (2) 19.4 μg/m3 (18) 3.0 μg/m3 (13) 74.0
 
May 8, 2021, 8 p.m. 5.9 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 64.0 ppb (81) 0.14 ppb (2) 21.6 μg/m3 (20) 3.0 μg/m3 (13) 81.0
 
May 8, 2021, 7 p.m. 7.6 ppb (8) 3.3 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 59.0 ppb (65) 0.14 ppb (2) 28.3 μg/m3 (27) 3.0 μg/m3 (13) 65.0
 
May 8, 2021, 6 p.m. 8.3 ppb (8) 3.7 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 51.0 ppb (48) 0.15 ppb (2) 19.8 μg/m3 (19) 5.0 μg/m3 (21) 48.0
 
May 8, 2021, 5 p.m. 6.3 ppb (6) 3.1 ppb (3) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 48.0 ppb (45) 0.17 ppb (3) 28.6 μg/m3 (27) 7.0 μg/m3 (30) 45.0
 
May 8, 2021, 4 p.m. 11.3 ppb (11) 4.9 ppb (5) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 36.0 ppb (34) 0.19 ppb (3) 40.7 μg/m3 (38) 9.0 μg/m3 (38) 38.0
 
May 8, 2021, 3 p.m. 38.2 ppb (37) 17.9 ppb (17) N/A 20.0 ppb (19) N/A 3.0 ppb (5) 18.0 ppb (17) 0.45 ppb (6) 79.0 μg/m3 (63) 14.0 μg/m3 (55) 63.0
 
May 8, 2021, 2 p.m. 23.3 ppb (22) 10.2 ppb (10) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 14.0 ppb (13) 0.31 ppb (4) 167.0 μg/m3 (107) 17.0 μg/m3 (62) 107.0
 
May 8, 2021, 1 p.m. 15.3 ppb (15) 5.8 ppb (6) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 12.0 ppb (12) 0.24 ppb (3) 73.1 μg/m3 (60) 11.0 μg/m3 (46) 60.0
 
May 8, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 46.5 μg/m3 (44) 13.0 μg/m3 (53) 53.0
 
May 8, 2021, 11 a.m. 15.0 ppb (15) 5.3 ppb (5) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 8.0 ppb (8) 0.27 ppb (4) 61.5 μg/m3 (55) 11.0 μg/m3 (46) 55.0
 
May 8, 2021, 10 a.m. 14.2 ppb (14) 3.5 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 8.0 ppb (8) 0.27 ppb (4) 50.5 μg/m3 (47) 14.0 μg/m3 (55) 55.0
 
May 8, 2021, 9 a.m. 16.0 ppb (16) 2.8 ppb (3) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 10.0 ppb (10) 0.4 ppb (5) 41.3 μg/m3 (39) 13.0 μg/m3 (53) 53.0
 
May 8, 2021, 8 a.m. 10.9 ppb (11) 2.7 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.28 ppb (4) 41.1 μg/m3 (39) 11.0 μg/m3 (46) 46.0
 
May 8, 2021, 7 a.m. 5.8 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 26.4 μg/m3 (25) 5.0 μg/m3 (21) 38.0
 
May 8, 2021, 6 a.m. 6.0 ppb (6) 2.4 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) 0.13 ppb (2) 32.3 μg/m3 (30) 5.0 μg/m3 (21) 41.0
 
May 8, 2021, 5 a.m. 7.3 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 36.3 μg/m3 (34) 7.0 μg/m3 (30) 43.0
 
May 8, 2021, 4 a.m. 7.9 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 48.0 ppb (45) 0.19 ppb (3) 31.7 μg/m3 (30) 5.0 μg/m3 (21) 45.0
 
May 8, 2021, 3 a.m. 7.0 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 48.0 ppb (45) 0.16 ppb (3) 69.5 μg/m3 (59) 4.0 μg/m3 (17) 59.0
 
May 8, 2021, 2 a.m. 9.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 48.0 ppb (45) 0.19 ppb (3) 38.2 μg/m3 (36) 3.0 μg/m3 (13) 45.0
 
May 8, 2021, 1 a.m. 6.3 ppb (6) 2.4 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 57.0 ppb (58) 0.15 ppb (2) 58.6 μg/m3 (53) 5.0 μg/m3 (21) 58.0
 
May 8, 2021, midnight 7.7 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 62.0 ppb (74) 0.16 ppb (3) 52.2 μg/m3 (49) 6.0 μg/m3 (25) 74.0
 
May 7, 2021, 11 p.m. 9.2 ppb (9) 4.1 ppb (4) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 63.0 ppb (78) 0.15 ppb (2) 51.5 μg/m3 (48) 8.0 μg/m3 (34) 78.0
 
May 7, 2021, 10 p.m. 7.4 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 65.0 ppb (84) 0.15 ppb (2) 40.7 μg/m3 (38) 5.0 μg/m3 (21) 84.0
 
May 7, 2021, 9 p.m. 10.6 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 72.0 ppb (102) 0.23 ppb (3) 57.1 μg/m3 (53) 6.0 μg/m3 (25) 102.0
 
May 7, 2021, 8 p.m. 12.8 ppb (13) 4.4 ppb (5) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 72.0 ppb (102) 0.2 ppb (3) 44.8 μg/m3 (42) 6.0 μg/m3 (25) 102.0
 
May 7, 2021, 7 p.m. 10.2 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 65.0 ppb (84) 0.21 ppb (3) 44.6 μg/m3 (42) 5.0 μg/m3 (21) 84.0
 
May 7, 2021, 6 p.m. 14.9 ppb (15) 5.3 ppb (5) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 57.0 ppb (58) 0.22 ppb (3) 55.5 μg/m3 (52) 6.0 μg/m3 (25) 58.0
 
May 7, 2021, 5 p.m. 12.9 ppb (13) 4.5 ppb (5) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 49.0 ppb (46) 0.24 ppb (3) 54.1 μg/m3 (51) 8.0 μg/m3 (34) 51.0
 
May 7, 2021, 4 p.m. 14.4 ppb (14) 5.5 ppb (6) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 38.0 ppb (36) 0.26 ppb (4) 59.1 μg/m3 (54) 11.0 μg/m3 (46) 54.0
 
May 7, 2021, 3 p.m. 21.2 ppb (20) 9.3 ppb (9) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 23.0 ppb (22) 0.33 ppb (4) 78.2 μg/m3 (63) N/A 63.0
 
May 7, 2021, 2 p.m. 32.8 ppb (31) 14.0 ppb (14) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 13.0 ppb (13) 0.41 ppb (5) 70.4 μg/m3 (59) N/A 59.0
 
May 7, 2021, 1 p.m. 24.6 ppb (24) 8.4 ppb (8) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 11.0 ppb (11) 0.29 ppb (4) 44.5 μg/m3 (42) N/A 42.0
 
May 7, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) N/A 29.0
 
May 7, 2021, 11 a.m. 8.0 ppb (8) 2.4 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) 27.6 μg/m3 (26) N/A 26.0
 
May 7, 2021, 10 a.m. 11.7 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) 31.7 μg/m3 (30) N/A 30.0
 
May 7, 2021, 9 a.m. 10.5 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (13) 0.18 ppb (3) 32.7 μg/m3 (31) N/A 31.0
 
May 7, 2021, 8 a.m. 10.7 ppb (11) 2.4 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (16) 0.26 ppb (4) 39.3 μg/m3 (37) N/A 37.0
 
May 7, 2021, 7 a.m. 8.8 ppb (9) 2.3 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) 39.1 μg/m3 (37) N/A 37.0
 
May 7, 2021, 6 a.m. 10.7 ppb (11) 2.5 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.23 ppb (3) 51.1 μg/m3 (48) N/A 48.0
 
May 7, 2021, 5 a.m. 15.3 ppb (15) 2.8 ppb (3) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 19.0 ppb (18) 0.2 ppb (3) 44.5 μg/m3 (42) 10.0 μg/m3 (42) 42.0
 
May 7, 2021, 4 a.m. 15.0 ppb (15) 2.9 ppb (3) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 24.0 ppb (23) 0.2 ppb (3) 61.6 μg/m3 (55) 10.0 μg/m3 (42) 55.0
 
May 7, 2021, 3 a.m. 11.1 ppb (11) 2.5 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 31.0 ppb (29) 0.18 ppb (3) 65.0 μg/m3 (56) 11.0 μg/m3 (46) 56.0
 
May 7, 2021, 2 a.m. 10.2 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 33.0 ppb (31) 0.17 ppb (3) 105.0 μg/m3 (76) 3.0 μg/m3 (13) 76.0
 
May 7, 2021, 1 a.m. 7.6 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 44.0 ppb (41) 0.15 ppb (2) 76.5 μg/m3 (62) 1.0 μg/m3 (5) 62.0
 
May 7, 2021, midnight 6.6 ppb (7) 3.2 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.13 ppb (2) 63.8 μg/m3 (56) 4.0 μg/m3 (17) 56.0
 
May 6, 2021, 11 p.m. 5.6 ppb (6) 3.2 ppb (4) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 50.0 ppb (47) 0.12 ppb (2) 52.1 μg/m3 (49) 6.0 μg/m3 (25) 49.0
 
May 6, 2021, 10 p.m. 6.7 ppb (7) 3.4 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 51.0 ppb (48) 0.13 ppb (2) 55.7 μg/m3 (52) 5.0 μg/m3 (21) 52.0
 
May 6, 2021, 9 p.m. 7.9 ppb (8) 3.7 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 53.0 ppb (50) 0.14 ppb (2) 49.2 μg/m3 (46) 5.0 μg/m3 (21) 50.0
 
May 6, 2021, 8 p.m. 8.5 ppb (9) 3.7 ppb (4) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 57.0 ppb (58) 0.15 ppb (2) 49.9 μg/m3 (47) 4.0 μg/m3 (17) 58.0
 
May 6, 2021, 7 p.m. 7.9 ppb (8) 3.7 ppb (4) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 56.0 ppb (55) 0.16 ppb (3) 41.7 μg/m3 (39) 5.0 μg/m3 (21) 55.0
 
May 6, 2021, 6 p.m. 12.4 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (8) N/A 3.0 ppb (5) 50.0 ppb (47) 0.2 ppb (3) 57.8 μg/m3 (53) 7.0 μg/m3 (30) 53.0
 
May 6, 2021, 5 p.m. 17.4 ppb (17) 6.4 ppb (7) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 48.0 ppb (45) 0.28 ppb (4) 52.1 μg/m3 (49) 8.0 μg/m3 (34) 49.0
 
May 6, 2021, 4 p.m. 23.3 ppb (22) 8.8 ppb (9) N/A 15.0 ppb (15) N/A 3.0 ppb (5) 32.0 ppb (30) 0.3 ppb (4) 71.0 μg/m3 (59) 9.0 μg/m3 (38) 59.0
 
May 6, 2021, 3 p.m. 31.6 ppb (30) 13.3 ppb (13) N/A 18.0 ppb (17) N/A 3.0 ppb (5) 20.0 ppb (19) 0.34 ppb (4) 113.0 μg/m3 (80) 8.0 μg/m3 (34) 80.0
 
May 6, 2021, 2 p.m. 24.2 ppb (23) 9.2 ppb (9) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 19.0 ppb (18) 0.29 ppb (4) 65.7 μg/m3 (57) 8.0 μg/m3 (34) 57.0
 
May 6, 2021, 1 p.m. 15.1 ppb (15) 5.3 ppb (5) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (13) 0.23 ppb (3) 68.8 μg/m3 (58) 11.0 μg/m3 (46) 58.0
 
May 6, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 55.7 μg/m3 (52) 12.0 μg/m3 (50) 52.0
 
May 6, 2021, 11 a.m. 9.8 ppb (10) 2.3 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (11) 0.2 ppb (3) 43.7 μg/m3 (41) 8.0 μg/m3 (34) 41.0
 
May 6, 2021, 10 a.m. 18.0 ppb (17) 4.7 ppb (5) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 11.0 ppb (11) 0.29 ppb (4) 55.9 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
May 6, 2021, 9 a.m. 19.7 ppb (19) 2.8 ppb (3) N/A 17.0 ppb (17) N/A 2.0 ppb (3) 15.0 ppb (14) 0.21 ppb (3) 39.5 μg/m3 (37) 12.0 μg/m3 (50) 50.0
 
May 6, 2021, 8 a.m. 20.9 ppb (20) 3.8 ppb (4) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 12.0 ppb (12) 0.28 ppb (4) 79.4 μg/m3 (64) 16.0 μg/m3 (60) 64.0
 
May 6, 2021, 7 a.m. 22.1 ppb (21) 3.5 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 7.0 ppb (7) 0.38 ppb (5) 162.8 μg/m3 (105) 13.0 μg/m3 (53) 105.0
 
May 6, 2021, 6 a.m. 34.2 ppb (33) 7.5 ppb (8) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 4.0 ppb (4) 0.55 ppb (7) 89.4 μg/m3 (69) 14.0 μg/m3 (55) 69.0
 
May 6, 2021, 5 a.m. 31.6 ppb (30) 6.6 ppb (7) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 11.0 ppb (11) 0.52 ppb (6) 102.5 μg/m3 (75) 11.0 μg/m3 (46) 75.0
 
May 6, 2021, 4 a.m. 26.3 ppb (25) 4.2 ppb (4) N/A 22.0 ppb (21) N/A 2.0 ppb (3) 18.0 ppb (17) 0.33 ppb (4) 79.7 μg/m3 (64) 12.0 μg/m3 (50) 64.0
 
May 6, 2021, 3 a.m. 23.5 ppb (23) 3.8 ppb (4) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 24.0 ppb (23) 0.27 ppb (4) 84.4 μg/m3 (66) 8.0 μg/m3 (34) 66.0
 
May 6, 2021, 2 a.m. 10.6 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 41.0 ppb (38) 0.24 ppb (3) 75.3 μg/m3 (62) 4.0 μg/m3 (17) 62.0
 
May 6, 2021, 1 a.m. 6.1 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (46) 0.14 ppb (2) 39.6 μg/m3 (37) 3.0 μg/m3 (13) 46.0
 
May 6, 2021, midnight 6.2 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (49) 0.13 ppb (2) 51.2 μg/m3 (48) 6.0 μg/m3 (25) 49.0
 
May 5, 2021, 11 p.m. 5.0 ppb (5) 3.0 ppb (3) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.12 ppb (2) 48.1 μg/m3 (45) 6.0 μg/m3 (25) 48.0
 
May 5, 2021, 10 p.m. 5.2 ppb (5) 3.4 ppb (4) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (50) 0.13 ppb (2) 59.7 μg/m3 (54) 5.0 μg/m3 (21) 54.0
 
May 5, 2021, 9 p.m. 6.1 ppb (6) 3.5 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) 0.14 ppb (2) 59.1 μg/m3 (54) 4.0 μg/m3 (17) 54.0
 
May 5, 2021, 8 p.m. 8.8 ppb (9) 4.6 ppb (5) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 57.0 ppb (58) 0.15 ppb (2) 56.0 μg/m3 (52) 7.0 μg/m3 (30) 58.0
 
May 5, 2021, 7 p.m. 12.0 ppb (12) 3.8 ppb (4) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 66.0 ppb (87) 0.24 ppb (3) 56.9 μg/m3 (52) 13.0 μg/m3 (53) 87.0
 
May 5, 2021, 6 p.m. 18.8 ppb (18) 5.7 ppb (6) N/A 13.0 ppb (13) N/A 2.0 ppb (3) 56.0 ppb (55) 0.3 ppb (4) 61.0 μg/m3 (54) 10.0 μg/m3 (42) 55.0
 
May 5, 2021, 5 p.m. 29.6 ppb (28) 11.1 ppb (11) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 42.0 ppb (39) 0.35 ppb (4) 86.9 μg/m3 (67) 12.0 μg/m3 (50) 67.0
 
May 5, 2021, 4 p.m. 32.1 ppb (31) 13.0 ppb (13) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 28.0 ppb (26) 0.34 ppb (4) 94.6 μg/m3 (71) 18.0 μg/m3 (64) 71.0
 
May 5, 2021, 3 p.m. 26.1 ppb (25) 10.3 ppb (10) N/A 16.0 ppb (16) N/A 2.0 ppb (3) 25.0 ppb (24) 0.29 ppb (4) 72.2 μg/m3 (60) 11.0 μg/m3 (46) 60.0
 
May 5, 2021, 2 p.m. 23.4 ppb (23) 8.1 ppb (8) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 24.0 ppb (23) 0.3 ppb (4) 75.0 μg/m3 (61) 8.0 μg/m3 (34) 61.0
 
May 5, 2021, 1 p.m. 23.9 ppb (23) 6.3 ppb (6) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 15.0 ppb (14) 0.32 ppb (4) 53.5 μg/m3 (50) 8.0 μg/m3 (34) 50.0
 
May 5, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 184.6 μg/m3 (116) 20.0 μg/m3 (68) 116.0
 
May 5, 2021, 11 a.m. 6.0 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) 30.1 μg/m3 (28) 7.0 μg/m3 (30) 30.0
 
May 5, 2021, 10 a.m. 6.7 ppb (7) 2.2 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) 40.1 μg/m3 (38) 11.0 μg/m3 (46) 46.0
 
May 5, 2021, 9 a.m. 13.7 ppb (13) 3.3 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) 0.18 ppb (3) 41.8 μg/m3 (39) 6.0 μg/m3 (25) 39.0
 
May 5, 2021, 8 a.m. 14.8 ppb (14) 2.6 ppb (3) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 13.0 ppb (13) 0.24 ppb (3) 69.4 μg/m3 (59) 10.0 μg/m3 (42) 59.0
 
May 5, 2021, 7 a.m. 16.5 ppb (16) 2.3 ppb (3) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 20.0 ppb (19) 0.28 ppb (4) 96.2 μg/m3 (72) 12.0 μg/m3 (50) 72.0
 
May 5, 2021, 6 a.m. 29.1 ppb (28) 2.8 ppb (3) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 13.0 ppb (13) 0.37 ppb (5) 87.2 μg/m3 (67) 9.0 μg/m3 (38) 67.0
 
May 5, 2021, 5 a.m. 21.0 ppb (20) 2.5 ppb (3) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 28.0 ppb (26) 0.2 ppb (3) 37.3 μg/m3 (35) 5.0 μg/m3 (21) 35.0
 
May 5, 2021, 4 a.m. 12.0 ppb (12) 2.4 ppb (3) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 41.0 ppb (38) 0.18 ppb (3) 35.6 μg/m3 (33) 3.0 μg/m3 (13) 38.0
 
May 5, 2021, 3 a.m. 12.9 ppb (13) 2.3 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 39.0 ppb (37) 0.21 ppb (3) 60.7 μg/m3 (54) 5.0 μg/m3 (21) 54.0
 
May 5, 2021, 2 a.m. 11.8 ppb (12) 2.6 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 46.0 ppb (43) 0.2 ppb (3) 53.2 μg/m3 (50) 6.0 μg/m3 (25) 50.0
 
May 5, 2021, 1 a.m. 8.2 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 67.0 ppb (91) 0.19 ppb (3) 51.0 μg/m3 (48) 6.0 μg/m3 (25) 91.0
 
May 5, 2021, midnight 11.3 ppb (11) 3.4 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 82.0 ppb (107) 0.2 ppb (3) 39.8 μg/m3 (37) 7.0 μg/m3 (30) 107.0
 
May 4, 2021, 11 p.m. 14.1 ppb (14) 5.3 ppb (5) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 78.0 ppb (105) 0.23 ppb (3) 35.2 μg/m3 (33) 10.0 μg/m3 (42) 105.0
 
May 4, 2021, 10 p.m. 9.9 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 76.0 ppb (104) 0.44 ppb (5) 28.6 μg/m3 (27) 8.0 μg/m3 (34) 104.0
 
May 4, 2021, 9 p.m. 9.6 ppb (10) 4.6 ppb (5) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 63.0 ppb (78) 0.38 ppb (5) 27.9 μg/m3 (26) 5.0 μg/m3 (21) 78.0
 
May 4, 2021, 8 p.m. 9.2 ppb (9) 3.8 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 61.0 ppb (71) 0.48 ppb (6) 30.4 μg/m3 (29) 6.0 μg/m3 (25) 71.0
 
May 4, 2021, 7 p.m. 8.0 ppb (8) 3.4 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 60.0 ppb (68) 0.34 ppb (4) 26.0 μg/m3 (25) 8.0 μg/m3 (34) 68.0
 
May 4, 2021, 6 p.m. 9.6 ppb (10) 3.9 ppb (4) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 59.0 ppb (65) 0.26 ppb (4) 38.8 μg/m3 (36) 9.0 μg/m3 (38) 65.0
 
May 4, 2021, 5 p.m. 9.7 ppb (10) 3.7 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 55.0 ppb (51) 0.22 ppb (3) 86.1 μg/m3 (67) 8.0 μg/m3 (34) 67.0
 
May 4, 2021, 4 p.m. 14.1 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 46.0 ppb (43) 0.24 ppb (3) 37.6 μg/m3 (35) 9.0 μg/m3 (38) 43.0
 
May 4, 2021, 3 p.m. 22.8 ppb (22) 8.8 ppb (9) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 33.0 ppb (31) 0.44 ppb (5) 56.8 μg/m3 (52) 12.0 μg/m3 (50) 52.0