ID: 146

AQSQID: 060370016

Site Name: Glendora - Laurel

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

Updated: Sept. 24, 2020, 2:39 a.m.

Location: Glendora (Downtown), CA

Reporting: True, Located: True

Current AQI: 63.0

Glendora (Downtown) CA, US: 34.1439, -117.8508

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 24, 2020, 1 a.m. 11.6 ppb (11) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 62.0 ppb (48) 0.31 ppb (3) 23.0 μg/m3 (21) 17.9 μg/m3 (63) 63.0
 
Sept. 24, 2020, midnight 9.7 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 66.0 ppb (51) 0.28 ppb (3) 29.0 μg/m3 (26) 10.4 μg/m3 (43) 51.0
 
Sept. 23, 2020, 11 p.m. 13.3 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 92.0 ppb (72) 0.39 ppb (4) 49.0 μg/m3 (45) 22.0 μg/m3 (71) 72.0
 
Sept. 23, 2020, 10 p.m. 14.8 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (13) N/A N/A 120.0 ppb (96) 0.5 ppb (6) 54.0 μg/m3 (49) 30.6 μg/m3 (90) 96.0
 
Sept. 23, 2020, 9 p.m. 11.5 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 88.0 ppb (69) 0.37 ppb (4) 39.0 μg/m3 (35) 22.5 μg/m3 (72) 72.0
 
Sept. 23, 2020, 8 p.m. 10.5 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A 67.0 ppb (52) 0.31 ppb (3) 31.0 μg/m3 (28) 13.9 μg/m3 (54) 54.0
 
Sept. 23, 2020, 7 p.m. 17.2 ppb (16) 3.2 ppb (3) N/A 14.0 ppb (13) N/A N/A 49.0 ppb (38) 0.34 ppb (4) 25.0 μg/m3 (23) 15.9 μg/m3 (58) 58.0
 
Sept. 23, 2020, 6 p.m. 31.8 ppb (29) 7.2 ppb (7) N/A 25.0 ppb (23) N/A N/A 39.0 ppb (30) 0.5 ppb (6) 36.0 μg/m3 (33) 20.3 μg/m3 (68) 68.0
 
Sept. 23, 2020, 5 p.m. 55.5 ppb (52) 18.8 ppb (17) N/A 37.0 ppb (34) N/A N/A 21.0 ppb (16) 0.68 ppb (8) 41.0 μg/m3 (37) 23.0 μg/m3 (73) 73.0
 
Sept. 23, 2020, 4 p.m. 23.6 ppb (22) 6.1 ppb (6) N/A 17.0 ppb (16) N/A N/A 29.0 ppb (22) 0.45 ppb (5) 28.0 μg/m3 (25) 18.5 μg/m3 (64) 64.0
 
Sept. 23, 2020, 3 p.m. 10.8 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.45 ppb (5) 32.0 μg/m3 (29) 20.3 μg/m3 (68) 68.0
 
Sept. 23, 2020, 2 p.m. 9.0 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.53 ppb (6) 34.0 μg/m3 (31) 29.9 μg/m3 (88) 88.0
 
Sept. 23, 2020, 1 p.m. 9.0 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.5 ppb (6) 23.0 μg/m3 (21) 23.8 μg/m3 (75) 75.0
 
Sept. 23, 2020, noon 6.9 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.3 ppb (3) 12.0 μg/m3 (11) 15.4 μg/m3 (57) 57.0
 
Sept. 23, 2020, 11 a.m. 6.9 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.27 ppb (3) 11.0 μg/m3 (10) 12.7 μg/m3 (51) 51.0
 
Sept. 23, 2020, 10 a.m. 7.4 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.3 ppb (3) 19.0 μg/m3 (17) 16.9 μg/m3 (60) 60.0
 
Sept. 23, 2020, 9 a.m. 7.5 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.38 ppb (4) 19.0 μg/m3 (17) 20.5 μg/m3 (68) 68.0
 
Sept. 23, 2020, 8 a.m. 8.7 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.4 ppb (4) 17.0 μg/m3 (15) 17.4 μg/m3 (61) 61.0
 
Sept. 23, 2020, 7 a.m. 12.1 ppb (11) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.39 ppb (4) 17.0 μg/m3 (15) 19.0 μg/m3 (65) 65.0
 
Sept. 23, 2020, 6 a.m. 12.4 ppb (11) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.38 ppb (4) 19.0 μg/m3 (17) 17.4 μg/m3 (61) 61.0
 
Sept. 23, 2020, 5 a.m. 15.7 ppb (15) 1.3 ppb (1) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) 0.4 ppb (4) 19.0 μg/m3 (17) 15.6 μg/m3 (58) 58.0
 
Sept. 23, 2020, 4 a.m. 16.1 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 28.0 ppb (22) 0.41 ppb (5) 16.0 μg/m3 (15) 17.6 μg/m3 (62) 62.0
 
Sept. 23, 2020, 3 a.m. 16.5 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 34.0 ppb (26) 0.41 ppb (5) 20.0 μg/m3 (18) 18.1 μg/m3 (63) 63.0
 
Sept. 23, 2020, 2 a.m. 16.2 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 44.0 ppb (34) 0.37 ppb (4) 19.0 μg/m3 (17) 20.5 μg/m3 (68) 68.0
 
Sept. 23, 2020, 1 a.m. 14.8 ppb (14) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 67.0 ppb (52) 0.35 ppb (4) 29.0 μg/m3 (26) 19.5 μg/m3 (66) 66.0
 
Sept. 23, 2020, midnight 12.2 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 87.0 ppb (68) 0.36 ppb (4) 33.0 μg/m3 (30) 23.3 μg/m3 (74) 74.0
 
Sept. 22, 2020, 11 p.m. 13.7 ppb (13) 0.9 ppb (1) N/A 13.0 ppb (12) N/A N/A 94.0 ppb (74) 0.38 ppb (4) 44.0 μg/m3 (40) 19.5 μg/m3 (66) 74.0
 
Sept. 22, 2020, 10 p.m. 10.0 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 92.0 ppb (72) 0.32 ppb (4) 39.0 μg/m3 (35) 18.6 μg/m3 (64) 72.0
 
Sept. 22, 2020, 9 p.m. 8.7 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 83.0 ppb (65) 0.29 ppb (3) 30.0 μg/m3 (27) 13.0 μg/m3 (52) 65.0
 
Sept. 22, 2020, 8 p.m. 11.5 ppb (11) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 83.0 ppb (65) 0.36 ppb (4) 41.0 μg/m3 (37) 24.5 μg/m3 (77) 77.0
 
Sept. 22, 2020, 7 p.m. 21.7 ppb (20) 3.4 ppb (3) N/A 18.0 ppb (17) N/A N/A 65.0 ppb (50) 0.48 ppb (5) 38.0 μg/m3 (35) 19.8 μg/m3 (67) 67.0
 
Sept. 22, 2020, 6 p.m. 29.8 ppb (28) 6.5 ppb (6) N/A 23.0 ppb (21) N/A N/A 46.0 ppb (35) 0.53 ppb (6) 49.0 μg/m3 (45) 24.2 μg/m3 (76) 76.0
 
Sept. 22, 2020, 5 p.m. 32.0 ppb (30) 9.2 ppb (9) N/A 23.0 ppb (21) N/A N/A 30.0 ppb (23) 0.55 ppb (6) 46.0 μg/m3 (42) 29.4 μg/m3 (87) 87.0
 
Sept. 22, 2020, 4 p.m. 24.8 ppb (23) 7.9 ppb (7) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) 0.48 ppb (5) 43.0 μg/m3 (39) 19.5 μg/m3 (66) 66.0
 
Sept. 22, 2020, 3 p.m. 17.1 ppb (16) 5.6 ppb (5) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.41 ppb (5) 39.0 μg/m3 (35) 25.5 μg/m3 (79) 79.0
 
Sept. 22, 2020, 2 p.m. 19.9 ppb (18) 4.8 ppb (4) N/A 15.0 ppb (14) N/A N/A 9.0 ppb (7) 0.38 ppb (4) 25.0 μg/m3 (23) 32.3 μg/m3 (93) 93.0
 
Sept. 22, 2020, 1 p.m. 10.9 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) 0.32 ppb (4) 15.0 μg/m3 (14) 17.9 μg/m3 (63) 63.0
 
Sept. 22, 2020, noon 7.8 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) 0.29 ppb (3) 15.0 μg/m3 (14) 14.9 μg/m3 (56) 56.0
 
Sept. 22, 2020, 11 a.m. 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.3 ppb (3) 12.0 μg/m3 (11) 15.1 μg/m3 (57) 57.0
 
Sept. 22, 2020, 10 a.m. 7.7 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.27 ppb (3) 12.0 μg/m3 (11) 16.1 μg/m3 (59) 59.0
 
Sept. 22, 2020, 9 a.m. 9.7 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.29 ppb (3) 14.0 μg/m3 (13) 14.9 μg/m3 (56) 56.0
 
Sept. 22, 2020, 8 a.m. 11.8 ppb (11) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A 13.0 ppb (10) 0.34 ppb (4) 15.0 μg/m3 (14) 18.4 μg/m3 (64) 64.0
 
Sept. 22, 2020, 7 a.m. 16.1 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.37 ppb (4) 16.0 μg/m3 (15) 21.3 μg/m3 (70) 70.0
 
Sept. 22, 2020, 6 a.m. 16.7 ppb (15) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 17.0 ppb (13) 0.36 ppb (4) 19.0 μg/m3 (17) 17.9 μg/m3 (63) 63.0
 
Sept. 22, 2020, 5 a.m. 17.5 ppb (16) 0.9 ppb (1) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) 0.39 ppb (4) 22.0 μg/m3 (20) 19.5 μg/m3 (66) 66.0
 
Sept. 22, 2020, 4 a.m. 17.0 ppb (16) 0.8 ppb (1) N/A 16.0 ppb (15) N/A N/A 31.0 ppb (24) 0.39 ppb (4) 24.0 μg/m3 (22) 20.3 μg/m3 (68) 68.0
 
Sept. 22, 2020, 3 a.m. 15.5 ppb (14) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 42.0 ppb (32) 0.39 ppb (4) 25.0 μg/m3 (23) 24.2 μg/m3 (76) 76.0
 
Sept. 22, 2020, 2 a.m. 16.8 ppb (16) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 49.0 ppb (38) 0.37 ppb (4) 30.0 μg/m3 (27) 23.8 μg/m3 (75) 75.0
 
Sept. 22, 2020, 1 a.m. 15.6 ppb (14) 0.3 ppb (0) N/A 15.0 ppb (14) N/A N/A 64.0 ppb (49) 0.36 ppb (4) 31.0 μg/m3 (28) 22.3 μg/m3 (72) 72.0
 
Sept. 22, 2020, midnight 15.0 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (13) N/A N/A 77.0 ppb (60) 0.34 ppb (4) 41.0 μg/m3 (37) 20.0 μg/m3 (67) 67.0
 
Sept. 21, 2020, 11 p.m. 16.9 ppb (16) 1.3 ppb (1) N/A 16.0 ppb (15) N/A N/A 77.0 ppb (60) 0.34 ppb (4) 46.0 μg/m3 (42) 24.0 μg/m3 (76) 76.0
 
Sept. 21, 2020, 10 p.m. 11.2 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 82.0 ppb (64) 0.32 ppb (4) 39.0 μg/m3 (35) 16.1 μg/m3 (59) 64.0
 
Sept. 21, 2020, 9 p.m. 10.2 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 79.0 ppb (62) 0.32 ppb (4) 41.0 μg/m3 (37) 22.8 μg/m3 (73) 73.0
 
Sept. 21, 2020, 8 p.m. 14.3 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A N/A 69.0 ppb (53) 0.38 ppb (4) 48.0 μg/m3 (44) 19.3 μg/m3 (66) 66.0
 
Sept. 21, 2020, 7 p.m. 19.1 ppb (18) 3.7 ppb (3) N/A 15.0 ppb (14) N/A N/A 52.0 ppb (40) 0.44 ppb (5) 47.0 μg/m3 (43) 27.7 μg/m3 (83) 83.0
 
Sept. 21, 2020, 6 p.m. 20.9 ppb (19) 5.3 ppb (5) N/A 16.0 ppb (15) N/A N/A 38.0 ppb (29) 0.46 ppb (5) 49.0 μg/m3 (45) 24.7 μg/m3 (77) 77.0
 
Sept. 21, 2020, 5 p.m. 20.3 ppb (19) 6.5 ppb (6) N/A 14.0 ppb (13) N/A N/A 26.0 ppb (20) 0.43 ppb (5) 47.0 μg/m3 (43) 25.2 μg/m3 (78) 78.0
 
Sept. 21, 2020, 4 p.m. 18.7 ppb (17) 6.7 ppb (6) N/A 12.0 ppb (11) N/A N/A 21.0 ppb (16) 0.4 ppb (4) 47.0 μg/m3 (43) 28.4 μg/m3 (85) 85.0
 
Sept. 21, 2020, 3 p.m. 16.3 ppb (15) 5.8 ppb (5) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.37 ppb (4) 32.0 μg/m3 (29) 23.7 μg/m3 (75) 75.0
 
Sept. 21, 2020, 2 p.m. 10.4 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) 0.36 ppb (4) 18.0 μg/m3 (16) 22.5 μg/m3 (72) 72.0
 
Sept. 21, 2020, 1 p.m. 8.8 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 10.0 ppb (8) 0.3 ppb (3) 15.0 μg/m3 (14) 15.1 μg/m3 (57) 57.0
 
Sept. 21, 2020, noon 7.1 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 9.0 ppb (7) 0.27 ppb (3) 12.0 μg/m3 (11) 16.9 μg/m3 (60) 60.0
 
Sept. 21, 2020, 11 a.m. 7.0 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.26 ppb (3) 10.0 μg/m3 (9) 16.4 μg/m3 (59) 59.0
 
Sept. 21, 2020, 10 a.m. 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.28 ppb (3) 10.0 μg/m3 (9) 12.7 μg/m3 (51) 51.0
 
Sept. 21, 2020, 9 a.m. 8.6 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.3 ppb (3) 12.0 μg/m3 (11) 16.1 μg/m3 (59) 59.0
 
Sept. 21, 2020, 8 a.m. 8.7 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 13.0 ppb (10) 0.3 ppb (3) 11.0 μg/m3 (10) 14.4 μg/m3 (55) 55.0
 
Sept. 21, 2020, 7 a.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.28 ppb (3) 10.0 μg/m3 (9) 14.9 μg/m3 (56) 56.0
 
Sept. 21, 2020, 6 a.m. 8.8 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.29 ppb (3) 9.0 μg/m3 (8) 14.2 μg/m3 (55) 55.0
 
Sept. 21, 2020, 5 a.m. 11.2 ppb (10) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.34 ppb (4) 16.0 μg/m3 (15) 20.0 μg/m3 (67) 67.0
 
Sept. 21, 2020, 4 a.m. 9.1 ppb (8) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.31 ppb (3) 15.0 μg/m3 (14) 12.7 μg/m3 (51) 51.0
 
Sept. 21, 2020, 3 a.m. 8.9 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) 0.3 ppb (3) 15.0 μg/m3 (14) 16.6 μg/m3 (60) 60.0
 
Sept. 21, 2020, 2 a.m. 7.9 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 45.0 ppb (35) 0.29 ppb (3) 17.0 μg/m3 (15) 14.9 μg/m3 (56) 56.0
 
Sept. 21, 2020, 1 a.m. 5.8 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 52.0 ppb (40) 0.25 ppb (3) 16.0 μg/m3 (15) 12.4 μg/m3 (51) 51.0
 
Sept. 21, 2020, midnight 5.1 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 65.0 ppb (50) 0.25 ppb (3) 16.0 μg/m3 (15) 13.2 μg/m3 (53) 53.0
 
Sept. 20, 2020, 11 p.m. 5.0 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 80.0 ppb (62) 0.27 ppb (3) 25.0 μg/m3 (23) 15.8 μg/m3 (58) 62.0
 
Sept. 20, 2020, 10 p.m. 4.7 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 83.0 ppb (65) 0.27 ppb (3) 22.0 μg/m3 (20) 16.6 μg/m3 (60) 65.0
 
Sept. 20, 2020, 9 p.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 79.0 ppb (62) 0.26 ppb (3) 20.0 μg/m3 (18) 15.9 μg/m3 (58) 62.0
 
Sept. 20, 2020, 8 p.m. 6.2 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 80.0 ppb (62) 0.32 ppb (4) 25.0 μg/m3 (23) 15.9 μg/m3 (58) 62.0
 
Sept. 20, 2020, 7 p.m. 10.2 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 78.0 ppb (61) 0.43 ppb (5) 33.0 μg/m3 (30) 19.3 μg/m3 (66) 66.0
 
Sept. 20, 2020, 6 p.m. 18.3 ppb (17) 2.7 ppb (3) N/A 16.0 ppb (15) N/A N/A 63.0 ppb (48) 0.56 ppb (6) 28.0 μg/m3 (25) 24.5 μg/m3 (77) 77.0
 
Sept. 20, 2020, 5 p.m. 23.5 ppb (22) 4.9 ppb (5) N/A 19.0 ppb (18) N/A N/A 43.0 ppb (33) 0.6 ppb (7) 29.0 μg/m3 (26) 19.5 μg/m3 (66) 66.0
 
Sept. 20, 2020, 4 p.m. 23.9 ppb (22) 6.7 ppb (6) N/A 17.0 ppb (16) N/A N/A 28.0 ppb (22) 0.59 ppb (7) 29.0 μg/m3 (26) 18.3 μg/m3 (63) 63.0
 
Sept. 20, 2020, 3 p.m. 18.6 ppb (17) 5.2 ppb (5) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.5 ppb (6) 26.0 μg/m3 (24) 16.9 μg/m3 (60) 60.0
 
Sept. 20, 2020, 2 p.m. 13.4 ppb (12) 2.6 ppb (2) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.4 ppb (4) 12.0 μg/m3 (11) 15.1 μg/m3 (57) 57.0
 
Sept. 20, 2020, 1 p.m. 12.4 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 12.0 ppb (9) 0.36 ppb (4) 12.0 μg/m3 (11) 16.6 μg/m3 (60) 60.0
 
Sept. 20, 2020, noon 9.3 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.34 ppb (4) 13.0 μg/m3 (12) 14.1 μg/m3 (54) 54.0
 
Sept. 20, 2020, 11 a.m. 7.0 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.29 ppb (3) 10.0 μg/m3 (9) 16.4 μg/m3 (59) 59.0
 
Sept. 20, 2020, 10 a.m. 10.4 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.37 ppb (4) 8.0 μg/m3 (7) 12.2 μg/m3 (50) 50.0
 
Sept. 20, 2020, 9 a.m. 15.6 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 10.0 ppb (8) 0.48 ppb (5) 19.0 μg/m3 (17) 16.4 μg/m3 (59) 59.0
 
Sept. 20, 2020, 8 a.m. 15.2 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) 0.46 ppb (5) 16.0 μg/m3 (15) 17.4 μg/m3 (61) 61.0
 
Sept. 20, 2020, 7 a.m. 11.1 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) 0.37 ppb (4) 16.0 μg/m3 (15) 19.8 μg/m3 (67) 67.0
 
Sept. 20, 2020, 6 a.m. 12.5 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) 0.41 ppb (5) 11.0 μg/m3 (10) 18.6 μg/m3 (64) 64.0
 
Sept. 20, 2020, 5 a.m. 13.3 ppb (12) 0.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.41 ppb (5) 18.0 μg/m3 (16) 17.4 μg/m3 (61) 61.0
 
Sept. 20, 2020, 4 a.m. 15.9 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 23.0 ppb (18) 0.43 ppb (5) 16.0 μg/m3 (15) 18.6 μg/m3 (64) 64.0
 
Sept. 20, 2020, 3 a.m. 15.8 ppb (15) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 33.0 ppb (25) 0.42 ppb (5) 16.0 μg/m3 (15) 22.5 μg/m3 (72) 72.0
 
Sept. 20, 2020, 2 a.m. 13.2 ppb (12) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 50.0 ppb (38) 0.39 ppb (4) 20.0 μg/m3 (18) 21.0 μg/m3 (69) 69.0
 
Sept. 20, 2020, 1 a.m. 10.8 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 72.0 ppb (56) 0.38 ppb (4) 20.0 μg/m3 (18) 22.3 μg/m3 (72) 72.0
 
Sept. 20, 2020, midnight 9.4 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 89.0 ppb (70) 0.35 ppb (4) 31.0 μg/m3 (28) 20.5 μg/m3 (68) 70.0
 
Sept. 19, 2020, 11 p.m. 8.0 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 92.0 ppb (72) 0.3 ppb (3) 28.0 μg/m3 (25) 20.8 μg/m3 (69) 72.0
 
Sept. 19, 2020, 10 p.m. 5.8 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 78.0 ppb (61) 0.23 ppb (3) 28.0 μg/m3 (25) 14.9 μg/m3 (56) 61.0
 
Sept. 19, 2020, 9 p.m. 6.1 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 88.0 ppb (69) 0.27 ppb (3) 35.0 μg/m3 (32) 19.0 μg/m3 (65) 69.0
 
Sept. 19, 2020, 8 p.m. 8.7 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 93.0 ppb (73) 0.33 ppb (4) 27.0 μg/m3 (25) 22.5 μg/m3 (72) 73.0
 
Sept. 19, 2020, 7 p.m. 19.0 ppb (18) 1.8 ppb (2) N/A 17.0 ppb (16) N/A N/A 91.0 ppb (72) 0.51 ppb (6) 43.0 μg/m3 (39) 21.0 μg/m3 (69) 72.0
 
Sept. 19, 2020, 6 p.m. 26.2 ppb (24) 3.1 ppb (3) N/A 23.0 ppb (21) N/A N/A 75.0 ppb (58) 0.63 ppb (7) 36.0 μg/m3 (33) 27.2 μg/m3 (82) 82.0
 
Sept. 19, 2020, 5 p.m. 32.7 ppb (30) 5.1 ppb (5) N/A 28.0 ppb (26) N/A N/A 56.0 ppb (43) 0.71 ppb (8) 44.0 μg/m3 (40) 34.5 μg/m3 (98) 98.0
 
Sept. 19, 2020, 4 p.m. 22.3 ppb (21) 3.5 ppb (3) N/A 19.0 ppb (18) N/A N/A 48.0 ppb (37) 0.61 ppb (7) 45.0 μg/m3 (41) 31.8 μg/m3 (92) 92.0
 
Sept. 19, 2020, 3 p.m. 14.9 ppb (14) 2.3 ppb (2) N/A 13.0 ppb (12) N/A N/A 37.0 ppb (28) 0.51 ppb (6) 34.0 μg/m3 (31) 35.2 μg/m3 (99) 99.0
 
Sept. 19, 2020, 2 p.m. 9.9 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.6 ppb (7) 48.0 μg/m3 (44) 42.9 μg/m3 (118) 118.0
 
Sept. 19, 2020, 1 p.m. 9.9 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) 0.55 ppb (6) 40.0 μg/m3 (36) 46.5 μg/m3 (128) 128.0
 
Sept. 19, 2020, noon 9.2 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.57 ppb (6) 49.0 μg/m3 (45) 48.2 μg/m3 (132) 132.0
 
Sept. 19, 2020, 11 a.m. 8.0 ppb (7) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) 0.89 ppb (10) 77.0 μg/m3 (61) 74.3 μg/m3 (160) 160.0
 
Sept. 19, 2020, 10 a.m. 10.6 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 1.29 ppb (14) 105.0 μg/m3 (75) 102.3 μg/m3 (175) 175.0
 
Sept. 19, 2020, 9 a.m. 9.2 ppb (9) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) 0.91 ppb (10) 76.0 μg/m3 (60) 78.7 μg/m3 (162) 162.0
 
Sept. 19, 2020, 8 a.m. 10.2 ppb (9) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) 0.88 ppb (10) 69.0 μg/m3 (57) 65.3 μg/m3 (155) 155.0
 
Sept. 19, 2020, 7 a.m. 10.6 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 39.0 ppb (30) 0.59 ppb (7) 44.0 μg/m3 (40) 45.7 μg/m3 (126) 126.0
 
Sept. 19, 2020, 6 a.m. 11.0 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) 0.59 ppb (7) 39.0 μg/m3 (35) 42.1 μg/m3 (116) 116.0
 
Sept. 19, 2020, 5 a.m. 12.6 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A 42.0 ppb (32) 0.59 ppb (7) 46.0 μg/m3 (42) 40.4 μg/m3 (112) 112.0
 
Sept. 19, 2020, 4 a.m. 14.5 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 46.0 ppb (35) 0.47 ppb (5) 31.0 μg/m3 (28) 22.3 μg/m3 (72) 72.0
 
Sept. 19, 2020, 3 a.m. 16.6 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 49.0 ppb (38) 0.46 ppb (5) 31.0 μg/m3 (28) 21.8 μg/m3 (71) 71.0
 
Sept. 19, 2020, 2 a.m. 18.2 ppb (17) 0.2 ppb (0) N/A 18.0 ppb (17) N/A N/A 62.0 ppb (48) 0.45 ppb (5) 28.0 μg/m3 (25) 24.2 μg/m3 (76) 76.0
 
Sept. 19, 2020, 1 a.m. 21.4 ppb (20) 0.3 ppb (0) N/A 21.0 ppb (19) N/A N/A 91.0 ppb (72) 0.47 ppb (5) 34.0 μg/m3 (31) 22.3 μg/m3 (72) 72.0
 
Sept. 19, 2020, midnight 21.7 ppb (20) 0.7 ppb (1) N/A 21.0 ppb (19) N/A N/A 107.0 ppb (85) 0.5 ppb (6) 68.0 μg/m3 (56) 29.1 μg/m3 (86) 86.0
 
Sept. 18, 2020, 11 p.m. 8.2 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 85.0 ppb (67) 0.24 ppb (3) 37.0 μg/m3 (34) 8.1 μg/m3 (34) 67.0
 
Sept. 18, 2020, 10 p.m. 7.0 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 77.0 ppb (60) 0.2 ppb (2) 33.0 μg/m3 (30) 7.8 μg/m3 (32) 60.0
 
Sept. 18, 2020, 9 p.m. 17.7 ppb (16) 1.4 ppb (1) N/A 16.0 ppb (15) N/A N/A 87.0 ppb (68) 0.33 ppb (4) 31.0 μg/m3 (28) 11.4 μg/m3 (48) 68.0
 
Sept. 18, 2020, 8 p.m. 18.3 ppb (17) 1.6 ppb (1) N/A 17.0 ppb (16) N/A N/A 85.0 ppb (67) 0.34 ppb (4) 42.0 μg/m3 (38) 17.9 μg/m3 (63) 67.0
 
Sept. 18, 2020, 7 p.m. 22.4 ppb (21) 2.3 ppb (2) N/A 20.0 ppb (19) N/A N/A 78.0 ppb (61) 0.4 ppb (4) 28.0 μg/m3 (25) 12.4 μg/m3 (51) 61.0
 
Sept. 18, 2020, 6 p.m. 38.2 ppb (35) 5.3 ppb (5) N/A 33.0 ppb (31) N/A N/A 65.0 ppb (50) 0.55 ppb (6) 42.0 μg/m3 (38) 19.3 μg/m3 (66) 66.0
 
Sept. 18, 2020, 5 p.m. 51.9 ppb (48) 10.0 ppb (9) N/A 42.0 ppb (39) N/A N/A 43.0 ppb (33) 0.65 ppb (7) 55.0 μg/m3 (50) 22.3 μg/m3 (72) 72.0
 
Sept. 18, 2020, 4 p.m. 47.2 ppb (44) 11.0 ppb (10) N/A 36.0 ppb (33) N/A N/A 30.0 ppb (23) 0.6 ppb (7) 44.0 μg/m3 (40) 17.0 μg/m3 (61) 61.0
 
Sept. 18, 2020, 3 p.m. 13.3 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (10) N/A N/A 36.0 ppb (28) 0.29 ppb (3) 26.0 μg/m3 (24) 14.4 μg/m3 (55) 55.0
 
Sept. 18, 2020, 2 p.m. 4.1 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.26 ppb (3) 36.0 μg/m3 (33) 19.5 μg/m3 (66) 66.0
 
Sept. 18, 2020, 1 p.m. 3.8 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.33 ppb (4) 16.0 μg/m3 (15) 22.5 μg/m3 (72) 72.0
 
Sept. 18, 2020, noon 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.42 ppb (5) 29.0 μg/m3 (26) 31.3 μg/m3 (91) 91.0
 
Sept. 18, 2020, 11 a.m. 3.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.55 ppb (6) 36.0 μg/m3 (33) 33.3 μg/m3 (95) 95.0
 
Sept. 18, 2020, 10 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.29 ppb (3) 18.0 μg/m3 (16) 16.6 μg/m3 (60) 60.0
 
Sept. 18, 2020, 9 a.m. 4.2 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.23 ppb (3) 19.0 μg/m3 (17) 22.8 μg/m3 (73) 73.0
 
Sept. 18, 2020, 8 a.m. 5.4 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) 0.21 ppb (2) 18.0 μg/m3 (16) 12.1 μg/m3 (50) 50.0
 
Sept. 18, 2020, 7 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.17 ppb (2) 12.0 μg/m3 (11) 8.7 μg/m3 (36) 36.0
 
Sept. 18, 2020, 6 a.m. 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.17 ppb (2) 11.0 μg/m3 (10) 14.1 μg/m3 (54) 54.0
 
Sept. 18, 2020, 5 a.m. 15.1 ppb (14) 0.4 ppb (0) N/A 15.0 ppb (14) N/A N/A 33.0 ppb (25) 0.41 ppb (5) 28.0 μg/m3 (25) 18.3 μg/m3 (63) 63.0
 
Sept. 18, 2020, 4 a.m. 16.7 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 33.0 ppb (25) 0.43 ppb (5) 28.0 μg/m3 (25) 20.3 μg/m3 (68) 68.0
 
Sept. 18, 2020, 3 a.m. 18.3 ppb (17) 0.4 ppb (0) N/A 18.0 ppb (17) N/A N/A 37.0 ppb (28) 0.44 ppb (5) 26.0 μg/m3 (24) 22.8 μg/m3 (73) 73.0
 
Sept. 18, 2020, 2 a.m. 19.4 ppb (18) 0.3 ppb (0) N/A 19.0 ppb (18) N/A N/A 42.0 ppb (32) 0.41 ppb (5) 28.0 μg/m3 (25) 16.9 μg/m3 (60) 60.0
 
Sept. 18, 2020, 1 a.m. 20.2 ppb (19) 0.3 ppb (0) N/A 20.0 ppb (19) N/A N/A 58.0 ppb (45) 0.37 ppb (4) 31.0 μg/m3 (28) 14.6 μg/m3 (56) 56.0
 
Sept. 18, 2020, midnight 21.1 ppb (20) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 80.0 ppb (62) 0.39 ppb (4) 38.0 μg/m3 (35) 11.4 μg/m3 (48) 62.0
 
Sept. 17, 2020, 11 p.m. 14.3 ppb (13) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 78.0 ppb (61) 0.27 ppb (3) 30.0 μg/m3 (27) 13.6 μg/m3 (53) 61.0
 
Sept. 17, 2020, 10 p.m. 13.9 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 78.0 ppb (61) 0.27 ppb (3) 44.0 μg/m3 (40) 14.1 μg/m3 (54) 61.0
 
Sept. 17, 2020, 9 p.m. 13.7 ppb (13) 1.3 ppb (1) N/A 12.0 ppb (11) N/A N/A 75.0 ppb (58) 0.28 ppb (3) 45.0 μg/m3 (41) 13.9 μg/m3 (54) 58.0
 
Sept. 17, 2020, 8 p.m. 12.3 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A N/A 70.0 ppb (54) 0.26 ppb (3) 29.0 μg/m3 (26) 14.8 μg/m3 (56) 56.0
 
Sept. 17, 2020, 7 p.m. 11.3 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 64.0 ppb (49) 0.28 ppb (3) 28.0 μg/m3 (25) 15.9 μg/m3 (58) 58.0
 
Sept. 17, 2020, 6 p.m. 19.1 ppb (18) 2.7 ppb (3) N/A 16.0 ppb (15) N/A N/A 57.0 ppb (44) 0.42 ppb (5) 48.0 μg/m3 (44) 24.3 μg/m3 (76) 76.0
 
Sept. 17, 2020, 5 p.m. 28.9 ppb (27) 4.1 ppb (4) N/A 25.0 ppb (23) N/A N/A 49.0 ppb (38) 0.63 ppb (7) 58.0 μg/m3 (52) 35.7 μg/m3 (100) 100.0
 
Sept. 17, 2020, 4 p.m. 33.3 ppb (31) 7.0 ppb (6) N/A 19.0 ppb (18) N/A N/A 33.0 ppb (25) 0.77 ppb (9) 109.0 μg/m3 (77) 46.4 μg/m3 (127) 127.0
 
Sept. 17, 2020, 3 p.m. 18.0 ppb (17) 2.2 ppb (2) N/A 16.0 ppb (15) N/A N/A 31.0 ppb (24) 0.61 ppb (7) 90.0 μg/m3 (68) 44.7 μg/m3 (123) 123.0
 
Sept. 17, 2020, 2 p.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (36) 0.46 ppb (5) 56.0 μg/m3 (50) 46.5 μg/m3 (128) 128.0
 
Sept. 17, 2020, 1 p.m. 5.2 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.9 ppb (10) 84.0 μg/m3 (64) 83.9 μg/m3 (165) 165.0
 
Sept. 17, 2020, noon 4.3 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 0.89 ppb (10) 68.0 μg/m3 (56) 72.2 μg/m3 (159) 159.0
 
Sept. 17, 2020, 11 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.61 ppb (7) 52.0 μg/m3 (47) 48.9 μg/m3 (134) 134.0
 
Sept. 17, 2020, 10 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.62 ppb (7) 48.0 μg/m3 (44) 51.1 μg/m3 (139) 139.0
 
Sept. 17, 2020, 9 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.64 ppb (7) 53.0 μg/m3 (48) 48.2 μg/m3 (132) 132.0
 
Sept. 17, 2020, 8 a.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.55 ppb (6) 48.0 μg/m3 (44) 46.5 μg/m3 (128) 128.0
 
Sept. 17, 2020, 7 a.m. 5.3 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) 0.8 ppb (9) 62.0 μg/m3 (54) 64.9 μg/m3 (155) 155.0
 
Sept. 17, 2020, 2 a.m. 11.4 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 41.0 ppb (32) 0.35 ppb (4) 38.0 μg/m3 (35) 19.5 μg/m3 (66) 66.0
 
Sept. 17, 2020, 1 a.m. 12.9 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 52.0 ppb (40) 0.35 ppb (4) 36.0 μg/m3 (33) 22.7 μg/m3 (73) 73.0
 
Sept. 17, 2020, midnight 11.8 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 77.0 ppb (60) 0.4 ppb (4) 54.0 μg/m3 (49) 27.7 μg/m3 (83) 83.0
 
Sept. 16, 2020, 11 p.m. 9.3 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 81.0 ppb (63) 0.35 ppb (4) 67.0 μg/m3 (56) 26.7 μg/m3 (81) 81.0
 
Sept. 16, 2020, 10 p.m. 12.3 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 110.0 ppb (88) 0.47 ppb (5) 119.0 μg/m3 (82) 36.7 μg/m3 (103) 103.0