ID: 1894

AQSQID: 060371302

Site Name: Compton

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

Updated: Sept. 21, 2020, 11:39 a.m.

Location: Compton (E Compton), CA

Reporting: True, Located: True

Current AQI: 61.0

Compton (E Compton) CA, US: 33.9014, -118.205

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2020, 10 a.m. 5.1 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.25 ppb (3) N/A 17.4 μg/m3 (61) 61.0
 
Sept. 21, 2020, 9 a.m. 5.4 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.26 ppb (3) N/A 12.2 μg/m3 (50) 50.0
 
Sept. 21, 2020, 8 a.m. 4.7 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.24 ppb (3) N/A 13.7 μg/m3 (54) 54.0
 
Sept. 21, 2020, 7 a.m. 5.4 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.28 ppb (3) N/A 16.1 μg/m3 (59) 59.0
 
Sept. 21, 2020, 6 a.m. 6.9 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) 0.31 ppb (3) N/A 16.4 μg/m3 (59) 59.0
 
Sept. 21, 2020, 5 a.m. 7.0 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.3 ppb (3) N/A 12.5 μg/m3 (51) 51.0
 
Sept. 21, 2020, 4 a.m. 6.1 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.31 ppb (3) N/A 13.2 μg/m3 (53) 53.0
 
Sept. 21, 2020, 3 a.m. 6.0 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) 0.3 ppb (3) N/A 15.9 μg/m3 (58) 58.0
 
Sept. 21, 2020, 2 a.m. 8.1 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 27.0 ppb (21) 0.28 ppb (3) N/A 17.6 μg/m3 (62) 62.0
 
Sept. 21, 2020, 1 a.m. 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.28 ppb (3) N/A 19.9 μg/m3 (67) 67.0
 
Sept. 21, 2020, midnight 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.27 ppb (3) N/A 16.9 μg/m3 (60) 60.0
 
Sept. 20, 2020, 11 p.m. 5.3 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.28 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 20, 2020, 10 p.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (41) 0.28 ppb (3) N/A 42.9 μg/m3 (118) 118.0
 
Sept. 20, 2020, 9 p.m. 7.6 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.28 ppb (3) N/A 15.4 μg/m3 (57) 57.0
 
Sept. 20, 2020, 8 p.m. 8.8 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 55.0 ppb (42) 0.28 ppb (3) N/A 18.6 μg/m3 (64) 64.0
 
Sept. 20, 2020, 7 p.m. 12.8 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A 49.0 ppb (38) 0.28 ppb (3) N/A 24.1 μg/m3 (76) 76.0
 
Sept. 20, 2020, 6 p.m. 6.8 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) 0.29 ppb (3) N/A 23.3 μg/m3 (74) 74.0
 
Sept. 20, 2020, 5 p.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.29 ppb (3) N/A 26.2 μg/m3 (80) 80.0
 
Sept. 20, 2020, 4 p.m. 5.5 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.24 ppb (3) N/A 23.0 μg/m3 (73) 73.0
 
Sept. 20, 2020, 3 p.m. 4.9 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.21 ppb (2) N/A 16.4 μg/m3 (59) 59.0
 
Sept. 20, 2020, 2 p.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.17 ppb (2) N/A 14.9 μg/m3 (56) 56.0
 
Sept. 20, 2020, 1 p.m. 3.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.14 ppb (2) N/A 10.6 μg/m3 (44) 44.0
 
Sept. 20, 2020, noon 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) 0.18 ppb (2) N/A 8.4 μg/m3 (35) 35.0
 
Sept. 20, 2020, 11 a.m. 24.0 ppb (22) 7.1 ppb (7) N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 0.73 ppb (8) N/A 14.7 μg/m3 (56) 56.0
 
Sept. 20, 2020, 10 a.m. 32.7 ppb (30) 13.1 ppb (12) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.91 ppb (10) N/A 12.2 μg/m3 (50) 50.0
 
Sept. 20, 2020, 9 a.m. 39.3 ppb (36) 17.9 ppb (17) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 1.04 ppb (12) N/A 20.1 μg/m3 (67) 67.0
 
Sept. 20, 2020, 8 a.m. 34.7 ppb (32) 13.2 ppb (12) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 1.05 ppb (12) N/A 14.9 μg/m3 (56) 56.0
 
Sept. 20, 2020, 7 a.m. 31.2 ppb (29) 5.9 ppb (5) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 0.84 ppb (9) N/A 15.6 μg/m3 (58) 58.0
 
Sept. 20, 2020, 6 a.m. 25.1 ppb (23) 1.8 ppb (2) N/A 23.0 ppb (21) N/A N/A 3.0 ppb (2) 0.69 ppb (8) N/A 12.2 μg/m3 (50) 50.0
 
Sept. 20, 2020, 5 a.m. 22.5 ppb (21) 0.4 ppb (0) N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) 0.48 ppb (5) N/A 16.9 μg/m3 (60) 60.0
 
Sept. 20, 2020, 4 a.m. 16.7 ppb (15) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 17.0 ppb (13) 0.43 ppb (5) N/A 15.6 μg/m3 (58) 58.0
 
Sept. 20, 2020, 3 a.m. 11.1 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) 0.37 ppb (4) N/A 13.2 μg/m3 (53) 53.0
 
Sept. 20, 2020, 2 a.m. 10.7 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) 0.34 ppb (4) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 20, 2020, 1 a.m. 6.2 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.31 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 20, 2020, midnight 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.3 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
Sept. 19, 2020, 11 p.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.29 ppb (3) N/A 10.4 μg/m3 (43) 43.0
 
Sept. 19, 2020, 10 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) 0.28 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
Sept. 19, 2020, 9 p.m. 7.3 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (38) 0.31 ppb (3) N/A 14.7 μg/m3 (56) 56.0
 
Sept. 19, 2020, 8 p.m. 8.7 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 52.0 ppb (40) 0.43 ppb (5) N/A 17.1 μg/m3 (61) 61.0
 
Sept. 19, 2020, 7 p.m. 12.8 ppb (12) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A 47.0 ppb (36) 0.37 ppb (4) N/A 18.6 μg/m3 (64) 64.0
 
Sept. 19, 2020, 6 p.m. 11.7 ppb (11) 2.2 ppb (2) N/A 10.0 ppb (9) N/A N/A 40.0 ppb (31) 0.37 ppb (4) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 19, 2020, 5 p.m. 12.6 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.29 ppb (3) N/A 19.4 μg/m3 (66) 66.0
 
Sept. 19, 2020, 4 p.m. 21.7 ppb (20) 7.3 ppb (7) N/A 14.0 ppb (13) N/A N/A 19.0 ppb (15) 0.35 ppb (4) N/A 15.6 μg/m3 (58) 58.0
 
Sept. 19, 2020, 3 p.m. 30.5 ppb (28) 11.4 ppb (11) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.45 ppb (5) N/A 20.1 μg/m3 (67) 67.0
 
Sept. 19, 2020, 2 p.m. 32.9 ppb (30) 12.4 ppb (11) N/A 21.0 ppb (19) N/A N/A 4.0 ppb (3) 0.54 ppb (6) N/A 16.9 μg/m3 (60) 60.0
 
Sept. 19, 2020, 1 p.m. 28.3 ppb (26) 8.3 ppb (8) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.65 ppb (7) N/A 10.8 μg/m3 (45) 45.0
 
Sept. 19, 2020, noon 22.9 ppb (21) 4.6 ppb (4) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.55 ppb (6) N/A 13.4 μg/m3 (53) 53.0
 
Sept. 19, 2020, 11 a.m. 15.8 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A N/A 5.0 ppb (4) 0.44 ppb (5) N/A 14.9 μg/m3 (56) 56.0
 
Sept. 19, 2020, 10 a.m. 13.0 ppb (12) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 8.0 ppb (6) 0.34 ppb (4) N/A 12.2 μg/m3 (50) 50.0
 
Sept. 19, 2020, 9 a.m. 10.2 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 13.0 ppb (10) 0.33 ppb (4) N/A 12.5 μg/m3 (51) 51.0
 
Sept. 19, 2020, 8 a.m. 5.4 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.23 ppb (3) N/A 12.5 μg/m3 (51) 51.0
 
Sept. 19, 2020, 7 a.m. 6.3 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) 0.23 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
Sept. 19, 2020, 6 a.m. 6.6 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) 0.23 ppb (3) N/A 15.1 μg/m3 (57) 57.0
 
Sept. 19, 2020, 5 a.m. 6.3 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.23 ppb (3) N/A 15.9 μg/m3 (58) 58.0
 
Sept. 19, 2020, 4 a.m. 8.3 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.24 ppb (3) N/A 14.2 μg/m3 (55) 55.0
 
Sept. 19, 2020, 3 a.m. 7.8 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.24 ppb (3) N/A 19.3 μg/m3 (66) 66.0
 
Sept. 19, 2020, 2 a.m. 6.2 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) 0.22 ppb (2) N/A 12.7 μg/m3 (51) 51.0
 
Sept. 19, 2020, 1 a.m. 6.6 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) 0.26 ppb (3) N/A 21.1 μg/m3 (69) 69.0
 
Sept. 19, 2020, midnight 9.9 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 59.0 ppb (45) 0.31 ppb (3) N/A 22.8 μg/m3 (73) 73.0
 
Sept. 18, 2020, 11 p.m. 10.2 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 75.0 ppb (58) 0.31 ppb (3) N/A 23.6 μg/m3 (75) 75.0
 
Sept. 18, 2020, 10 p.m. 13.8 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 82.0 ppb (64) 0.33 ppb (4) N/A 23.6 μg/m3 (75) 75.0
 
Sept. 18, 2020, 9 p.m. 18.7 ppb (17) 1.9 ppb (2) N/A 17.0 ppb (16) N/A N/A 63.0 ppb (48) 0.32 ppb (4) N/A 24.3 μg/m3 (76) 76.0
 
Sept. 18, 2020, 8 p.m. 24.6 ppb (23) 3.2 ppb (3) N/A 21.0 ppb (19) N/A N/A 57.0 ppb (44) 0.27 ppb (3) N/A 15.9 μg/m3 (58) 58.0
 
Sept. 18, 2020, 7 p.m. 23.5 ppb (22) 3.4 ppb (3) N/A 20.0 ppb (19) N/A N/A 54.0 ppb (42) 0.26 ppb (3) N/A N/A 42.0
 
Sept. 18, 2020, 6 p.m. 32.1 ppb (30) 6.2 ppb (6) N/A 26.0 ppb (24) N/A N/A 47.0 ppb (36) 0.35 ppb (4) N/A N/A 36.0
 
Sept. 18, 2020, 5 p.m. 66.4 ppb (63) 21.6 ppb (20) N/A 45.0 ppb (42) N/A N/A 22.0 ppb (17) 0.57 ppb (6) N/A N/A 63.0
 
Sept. 18, 2020, 4 p.m. 95.1 ppb (94) 44.6 ppb (41) N/A 51.0 ppb (47) N/A N/A 9.0 ppb (7) 0.89 ppb (10) N/A N/A 94.0
 
Sept. 18, 2020, 3 p.m. 123.6 ppb (104) 78.2 ppb (76) N/A 46.0 ppb (43) N/A N/A 2.0 ppb (2) 1.56 ppb (17) N/A 35.1 μg/m3 (99) 104.0
 
Sept. 18, 2020, 2 p.m. 132.2 ppb (106) 100.0 ppb (99) N/A 33.0 ppb (31) N/A N/A 0.0 ppb (0) 1.82 ppb (20) N/A 23.3 μg/m3 (74) 106.0
 
Sept. 18, 2020, 1 p.m. 110.1 ppb (102) 83.9 ppb (82) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 1.82 ppb (20) N/A 30.7 μg/m3 (90) 102.0
 
Sept. 18, 2020, noon 72.7 ppb (70) 46.2 ppb (43) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 1.15 ppb (13) N/A 18.8 μg/m3 (64) 70.0
 
Sept. 18, 2020, 11 a.m. 60.1 ppb (56) 30.3 ppb (28) N/A 30.0 ppb (28) N/A N/A 0.0 ppb (0) 0.9 ppb (10) N/A 20.8 μg/m3 (69) 69.0
 
Sept. 18, 2020, 10 a.m. 38.7 ppb (36) 14.9 ppb (14) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.76 ppb (8) N/A 19.4 μg/m3 (66) 66.0
 
Sept. 18, 2020, 9 a.m. 25.5 ppb (24) 2.0 ppb (2) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 0.54 ppb (6) N/A 16.1 μg/m3 (59) 59.0
 
Sept. 18, 2020, 8 a.m. 25.3 ppb (23) 2.1 ppb (2) N/A 23.0 ppb (21) N/A N/A 1.0 ppb (1) 0.68 ppb (8) N/A 18.1 μg/m3 (63) 63.0
 
Sept. 18, 2020, 7 a.m. 29.8 ppb (28) 2.5 ppb (2) N/A 27.0 ppb (25) N/A N/A 2.0 ppb (2) 0.56 ppb (6) N/A 19.1 μg/m3 (65) 65.0
 
Sept. 18, 2020, 6 a.m. 24.9 ppb (23) 1.5 ppb (1) N/A 23.0 ppb (21) N/A N/A 3.0 ppb (2) 0.57 ppb (6) N/A 18.6 μg/m3 (64) 64.0
 
Sept. 18, 2020, 5 a.m. 18.5 ppb (17) 0.5 ppb (0) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) 0.38 ppb (4) N/A 16.9 μg/m3 (60) 60.0
 
Sept. 18, 2020, 4 a.m. 17.1 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 15.0 ppb (12) 0.32 ppb (4) N/A 18.6 μg/m3 (64) 64.0
 
Sept. 18, 2020, 3 a.m. 13.9 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) 0.24 ppb (3) N/A 14.9 μg/m3 (56) 56.0
 
Sept. 18, 2020, 2 a.m. 12.8 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.23 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Sept. 18, 2020, 1 a.m. 11.1 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 30.0 ppb (23) 0.25 ppb (3) N/A 13.9 μg/m3 (54) 54.0
 
Sept. 18, 2020, midnight 10.0 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 60.0 ppb (46) 0.3 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
Sept. 17, 2020, 11 p.m. 12.4 ppb (11) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A 70.0 ppb (54) 0.34 ppb (4) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 17, 2020, 10 p.m. 14.3 ppb (13) 1.5 ppb (1) N/A 13.0 ppb (12) N/A N/A 59.0 ppb (45) 0.3 ppb (3) N/A 18.2 μg/m3 (63) 63.0
 
Sept. 17, 2020, 9 p.m. 25.7 ppb (24) 3.1 ppb (3) N/A 23.0 ppb (21) N/A N/A 60.0 ppb (46) 0.41 ppb (5) N/A 21.8 μg/m3 (71) 71.0
 
Sept. 17, 2020, 8 p.m. 32.4 ppb (30) 5.5 ppb (5) N/A 27.0 ppb (25) N/A N/A 49.0 ppb (38) 0.43 ppb (5) N/A 17.6 μg/m3 (62) 62.0
 
Sept. 17, 2020, 7 p.m. 47.5 ppb (44) 11.1 ppb (10) N/A 36.0 ppb (33) N/A N/A 34.0 ppb (26) 0.45 ppb (5) N/A 14.5 μg/m3 (55) 55.0
 
Sept. 17, 2020, 6 p.m. 50.3 ppb (47) 14.2 ppb (13) N/A 36.0 ppb (33) N/A N/A 29.0 ppb (22) 0.47 ppb (5) N/A 17.9 μg/m3 (63) 63.0
 
Sept. 17, 2020, 5 p.m. 65.1 ppb (62) 24.2 ppb (22) N/A 41.0 ppb (38) N/A N/A 17.0 ppb (13) 0.59 ppb (7) N/A 26.2 μg/m3 (80) 80.0
 
Sept. 17, 2020, 4 p.m. 101.7 ppb (100) 56.4 ppb (53) N/A 46.0 ppb (43) N/A N/A 7.0 ppb (5) 1.14 ppb (13) N/A 33.4 μg/m3 (96) 100.0
 
Sept. 17, 2020, 3 p.m. 173.0 ppb (114) 127.5 ppb (105) N/A 46.0 ppb (43) N/A N/A 0.0 ppb (0) 2.17 ppb (24) N/A 35.1 μg/m3 (99) 114.0
 
Sept. 17, 2020, 2 p.m. 129.6 ppb (106) 101.1 ppb (100) N/A 29.0 ppb (27) N/A N/A 0.0 ppb (0) 2.05 ppb (23) N/A 28.0 μg/m3 (84) 106.0
 
Sept. 17, 2020, 1 p.m. 88.3 ppb (86) 65.9 ppb (63) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 1.6 ppb (18) N/A 20.8 μg/m3 (69) 86.0
 
Sept. 17, 2020, noon 68.0 ppb (65) 44.3 ppb (41) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 1.22 ppb (14) N/A 22.6 μg/m3 (73) 73.0
 
Sept. 17, 2020, 11 a.m. 50.5 ppb (47) 23.6 ppb (22) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 0.84 ppb (9) N/A 23.3 μg/m3 (74) 74.0
 
Sept. 17, 2020, 10 a.m. 38.3 ppb (35) 12.9 ppb (12) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.8 ppb (9) N/A 28.7 μg/m3 (86) 86.0
 
Sept. 17, 2020, 9 a.m. 30.5 ppb (28) 2.4 ppb (2) N/A 28.0 ppb (26) N/A N/A 0.0 ppb (0) 0.71 ppb (8) N/A 27.7 μg/m3 (83) 83.0
 
Sept. 17, 2020, 8 a.m. 32.6 ppb (30) 3.6 ppb (3) N/A 29.0 ppb (27) N/A N/A 0.0 ppb (0) 0.78 ppb (9) N/A 25.2 μg/m3 (78) 78.0
 
Sept. 17, 2020, 7 a.m. 26.3 ppb (24) 1.2 ppb (1) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) 0.7 ppb (8) N/A 28.7 μg/m3 (86) 86.0
 
Sept. 17, 2020, 2 a.m. 12.6 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.28 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 17, 2020, 1 a.m. 11.3 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.25 ppb (3) N/A 15.9 μg/m3 (58) 58.0
 
Sept. 17, 2020, midnight 7.6 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) 0.2 ppb (2) N/A 12.7 μg/m3 (51) 51.0
 
Sept. 16, 2020, 11 p.m. 7.5 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 53.0 ppb (41) 0.28 ppb (3) N/A 23.8 μg/m3 (75) 75.0
 
Sept. 16, 2020, 10 p.m. 9.6 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 82.0 ppb (64) 0.38 ppb (4) N/A 35.9 μg/m3 (101) 101.0
 
Sept. 16, 2020, 9 p.m. 11.4 ppb (11) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 95.0 ppb (75) 0.45 ppb (5) N/A 46.9 μg/m3 (128) 128.0
 
Sept. 16, 2020, 8 p.m. 15.7 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (14) N/A N/A 87.0 ppb (68) 0.39 ppb (4) N/A 47.9 μg/m3 (131) 131.0
 
Sept. 16, 2020, 7 p.m. 26.3 ppb (24) 1.2 ppb (1) N/A 25.0 ppb (23) N/A N/A 102.0 ppb (81) 0.73 ppb (8) N/A 66.8 μg/m3 (156) 156.0
 
Sept. 16, 2020, 6 p.m. 41.0 ppb (38) 3.8 ppb (4) N/A 37.0 ppb (34) N/A N/A 79.0 ppb (62) 1.01 ppb (11) N/A 83.5 μg/m3 (165) 165.0
 
Sept. 16, 2020, 5 p.m. 87.5 ppb (86) 24.8 ppb (23) N/A 63.0 ppb (60) N/A N/A 26.0 ppb (20) 1.28 ppb (14) N/A 73.1 μg/m3 (159) 159.0
 
Sept. 16, 2020, 4 p.m. 97.6 ppb (96) 40.3 ppb (37) N/A 58.0 ppb (54) N/A N/A 11.0 ppb (8) 1.43 ppb (16) N/A 83.0 μg/m3 (164) 164.0
 
Sept. 16, 2020, 3 p.m. 153.7 ppb (110) 101.7 ppb (100) N/A 52.0 ppb (48) N/A N/A 1.0 ppb (1) 2.36 ppb (26) N/A 75.1 μg/m3 (160) 160.0
 
Sept. 16, 2020, 2 p.m. 155.0 ppb (110) 124.1 ppb (104) N/A 31.0 ppb (29) N/A N/A 0.0 ppb (0) 4.54 ppb (50) N/A 72.2 μg/m3 (159) 159.0
 
Sept. 16, 2020, 1 p.m. 103.2 ppb (100) 79.3 ppb (77) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 2.34 ppb (26) N/A 55.0 μg/m3 (149) 149.0
 
Sept. 16, 2020, noon 80.3 ppb (78) 55.3 ppb (51) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 1.79 ppb (20) N/A 58.7 μg/m3 (152) 152.0
 
Sept. 16, 2020, 11 a.m. 61.0 ppb (57) 36.4 ppb (34) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 1.41 ppb (16) N/A 53.8 μg/m3 (146) 146.0
 
Sept. 16, 2020, 10 a.m. 50.3 ppb (47) 23.4 ppb (22) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 1.31 ppb (15) N/A 56.7 μg/m3 (151) 151.0
 
Sept. 16, 2020, 9 a.m. 40.0 ppb (37) 9.8 ppb (9) N/A 30.0 ppb (28) N/A N/A 0.0 ppb (0) 1.3 ppb (14) N/A 56.2 μg/m3 (150) 150.0
 
Sept. 16, 2020, 8 a.m. 32.4 ppb (30) 3.9 ppb (4) N/A 29.0 ppb (27) N/A N/A 0.0 ppb (0) 1.15 ppb (13) N/A 54.2 μg/m3 (147) 147.0
 
Sept. 16, 2020, 7 a.m. 27.3 ppb (25) 2.9 ppb (3) N/A 24.0 ppb (22) N/A N/A 4.0 ppb (3) 0.85 ppb (9) N/A 52.5 μg/m3 (142) 142.0
 
Sept. 16, 2020, 6 a.m. 15.6 ppb (14) 0.3 ppb (0) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) 0.69 ppb (8) N/A 57.5 μg/m3 (151) 151.0
 
Sept. 16, 2020, 5 a.m. 14.9 ppb (14) 2.0 ppb (2) N/A 13.0 ppb (12) N/A N/A 25.0 ppb (19) 0.61 ppb (7) N/A 54.7 μg/m3 (148) 148.0
 
Sept. 16, 2020, 4 a.m. 9.5 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) 0.59 ppb (7) N/A 55.0 μg/m3 (149) 149.0
 
Sept. 16, 2020, 3 a.m. 11.2 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 40.0 ppb (31) 0.64 ppb (7) N/A 58.7 μg/m3 (152) 152.0
 
Sept. 16, 2020, 2 a.m. 14.1 ppb (13) -0.1 ppb (0) N/A 14.0 ppb (13) N/A N/A 44.0 ppb (34) 0.65 ppb (7) N/A 63.0 μg/m3 (154) 154.0
 
Sept. 16, 2020, 1 a.m. 14.4 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 46.0 ppb (35) 0.61 ppb (7) N/A 52.5 μg/m3 (142) 142.0
 
Sept. 16, 2020, midnight 10.1 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 50.0 ppb (38) 0.43 ppb (5) N/A 47.1 μg/m3 (129) 129.0
 
Sept. 15, 2020, 11 p.m. 11.6 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 63.0 ppb (48) 0.41 ppb (5) N/A 51.0 μg/m3 (139) 139.0
 
Sept. 15, 2020, 10 p.m. 14.3 ppb (13) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 69.0 ppb (53) 0.69 ppb (8) N/A 67.0 μg/m3 (156) 156.0
 
Sept. 15, 2020, 9 p.m. 13.6 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 70.0 ppb (54) 0.74 ppb (8) N/A 66.8 μg/m3 (156) 156.0
 
Sept. 15, 2020, 8 p.m. 16.1 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A 65.0 ppb (50) 0.72 ppb (8) N/A 66.8 μg/m3 (156) 156.0
 
Sept. 15, 2020, 7 p.m. 40.1 ppb (37) 5.2 ppb (5) N/A 35.0 ppb (32) N/A N/A 58.0 ppb (45) 1.0 ppb (11) N/A 65.3 μg/m3 (155) 155.0
 
Sept. 15, 2020, 6 p.m. 44.9 ppb (42) 7.9 ppb (7) N/A 37.0 ppb (34) N/A N/A 37.0 ppb (28) 0.85 ppb (9) N/A 56.2 μg/m3 (150) 150.0
 
Sept. 15, 2020, 5 p.m. 76.0 ppb (73) 24.7 ppb (23) N/A 52.0 ppb (48) N/A N/A 19.0 ppb (15) 1.28 ppb (14) N/A 78.2 μg/m3 (162) 162.0
 
Sept. 15, 2020, 4 p.m. 100.9 ppb (100) 47.6 ppb (44) N/A 54.0 ppb (50) N/A N/A 6.0 ppb (5) 1.61 ppb (18) N/A 71.4 μg/m3 (158) 158.0
 
Sept. 15, 2020, 3 p.m. 143.7 ppb (108) 98.5 ppb (97) N/A 46.0 ppb (43) N/A N/A 0.0 ppb (0) 2.15 ppb (24) N/A 80.7 μg/m3 (163) 163.0
 
Sept. 15, 2020, 2 p.m. 105.2 ppb (101) 79.6 ppb (77) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 2.42 ppb (27) N/A 73.1 μg/m3 (159) 159.0
 
Sept. 15, 2020, 1 p.m. 64.6 ppb (61) 43.4 ppb (40) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 1.8 ppb (20) N/A 70.4 μg/m3 (158) 158.0
 
Sept. 15, 2020, noon 54.9 ppb (51) 31.4 ppb (29) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 1.69 ppb (19) N/A 70.4 μg/m3 (158) 158.0
 
Sept. 15, 2020, 11 a.m. 28.5 ppb (26) 5.8 ppb (5) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 1.21 ppb (13) N/A 72.4 μg/m3 (159) 159.0
 
Sept. 15, 2020, 10 a.m. 26.0 ppb (24) 3.6 ppb (3) N/A 22.0 ppb (20) N/A N/A 3.0 ppb (2) 1.13 ppb (13) N/A 79.9 μg/m3 (163) 163.0
 
Sept. 15, 2020, 9 a.m. 19.1 ppb (18) 0.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (6) 1.08 ppb (12) N/A 80.0 μg/m3 (163) 163.0
 
Sept. 15, 2020, 8 a.m. 18.6 ppb (17) 0.4 ppb (0) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (11) 1.0 ppb (11) N/A 80.2 μg/m3 (163) 163.0
 
Sept. 15, 2020, 7 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 28.0 ppb (22) 0.89 ppb (10) N/A 80.7 μg/m3 (163) 163.0
 
Sept. 15, 2020, 6 a.m. 8.8 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) 0.87 ppb (10) N/A 71.9 μg/m3 (159) 159.0
 
Sept. 15, 2020, 5 a.m. 8.2 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 34.0 ppb (26) 0.85 ppb (9) N/A 71.4 μg/m3 (158) 158.0
 
Sept. 15, 2020, 4 a.m. 7.7 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.81 ppb (9) N/A 68.9 μg/m3 (157) 157.0
 
Sept. 15, 2020, 3 a.m. 8.0 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) 0.76 ppb (8) N/A 63.3 μg/m3 (154) 154.0
 
Sept. 15, 2020, 2 a.m. 10.5 ppb (10) -0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 41.0 ppb (32) 0.75 ppb (8) N/A 60.2 μg/m3 (152) 152.0
 
Sept. 15, 2020, 1 a.m. 13.6 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 47.0 ppb (36) 0.74 ppb (8) N/A 53.0 μg/m3 (144) 144.0
 
Sept. 15, 2020, midnight 11.9 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 57.0 ppb (44) 0.64 ppb (7) N/A 50.8 μg/m3 (138) 138.0
 
Sept. 14, 2020, 11 p.m. 11.9 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 69.0 ppb (53) 0.67 ppb (7) N/A 52.0 μg/m3 (141) 141.0
 
Sept. 14, 2020, 10 p.m. 11.3 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 80.0 ppb (62) 0.64 ppb (7) N/A 52.3 μg/m3 (142) 142.0
 
Sept. 14, 2020, 9 p.m. 13.9 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 72.0 ppb (56) 0.74 ppb (8) N/A 58.9 μg/m3 (152) 152.0
 
Sept. 14, 2020, 8 p.m. 26.4 ppb (24) 2.3 ppb (2) N/A 24.0 ppb (22) N/A N/A 71.0 ppb (55) 0.87 ppb (10) N/A 55.2 μg/m3 (149) 149.0
 
Sept. 14, 2020, 7 p.m. 31.6 ppb (29) 4.2 ppb (4) N/A 27.0 ppb (25) N/A N/A 54.0 ppb (42) 0.84 ppb (9) N/A 53.8 μg/m3 (146) 146.0
 
Sept. 14, 2020, 6 p.m. 40.3 ppb (37) 8.0 ppb (7) N/A 32.0 ppb (30) N/A N/A 35.0 ppb (27) 0.95 ppb (11) N/A 55.5 μg/m3 (150) 150.0
 
Sept. 14, 2020, 5 p.m. 47.8 ppb (44) 11.8 ppb (11) N/A 36.0 ppb (33) N/A N/A 22.0 ppb (17) 1.03 ppb (11) N/A 62.4 μg/m3 (154) 154.0
 
Sept. 14, 2020, 4 p.m. 82.6 ppb (80) 36.7 ppb (34) N/A 46.0 ppb (43) N/A N/A 6.0 ppb (5) 1.4 ppb (16) N/A 62.8 μg/m3 (154) 154.0
 
Sept. 14, 2020, 3 p.m. 103.4 ppb (100) 61.2 ppb (58) N/A 42.0 ppb (39) N/A N/A 1.0 ppb (1) 1.82 ppb (20) N/A 67.2 μg/m3 (156) 156.0
 
Sept. 14, 2020, 2 p.m. 99.4 ppb (98) 73.2 ppb (70) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 2.37 ppb (26) N/A 59.6 μg/m3 (152) 152.0
 
Sept. 14, 2020, 1 p.m. 64.0 ppb (61) 42.1 ppb (39) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 1.74 ppb (19) N/A 57.7 μg/m3 (151) 151.0
 
Sept. 14, 2020, noon 41.7 ppb (39) 15.5 ppb (14) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 1.4 ppb (16) N/A 57.9 μg/m3 (151) 151.0
 
Sept. 14, 2020, 11 a.m. 28.6 ppb (26) 5.5 ppb (5) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 1.21 ppb (13) N/A 58.2 μg/m3 (151) 151.0
 
Sept. 14, 2020, 10 a.m. 34.4 ppb (32) 9.0 ppb (8) N/A 25.0 ppb (23) N/A N/A 3.0 ppb (2) 1.08 ppb (12) N/A 57.4 μg/m3 (151) 151.0
 
Sept. 14, 2020, 9 a.m. 18.9 ppb (18) 0.4 ppb (0) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (8) 1.06 ppb (12) N/A 56.4 μg/m3 (150) 150.0
 
Sept. 14, 2020, 8 a.m. 17.5 ppb (16) 0.4 ppb (0) N/A 17.0 ppb (16) N/A N/A 13.0 ppb (10) 1.04 ppb (12) N/A 59.9 μg/m3 (152) 152.0
 
Sept. 14, 2020, 7 a.m. 16.4 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 1.0 ppb (11) N/A 61.6 μg/m3 (153) 153.0