AQSQID: 060370016

Site Name: Glendora - Laurel

Location: Glendora, CA

Reporting: True, Located: True

Current AQI: 49.0

Glendora CA, US: 34.1439, -117.8508

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2019, 1 a.m. 10.8 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 64.0 ppb (49) 0.41 ppb (5) 28.0 μg/m3 (25) 11.5 μg/m3 (48) 49.0
 
July 24, 2019, midnight 10.4 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 74.0 ppb (57) 0.42 ppb (5) 36.0 μg/m3 (33) 13.2 μg/m3 (53) 57.0
 
July 23, 2019, 11 p.m. 9.4 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 101.0 ppb (80) 0.46 ppb (5) 39.0 μg/m3 (35) 18.2 μg/m3 (63) 80.0
 
July 23, 2019, 10 p.m. 10.4 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 120.0 ppb (96) 0.52 ppb (6) 47.0 μg/m3 (43) 16.7 μg/m3 (60) 96.0
 
July 23, 2019, 9 p.m. 16.0 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A N/A 114.0 ppb (91) 0.57 ppb (6) 60.0 μg/m3 (52) 20.3 μg/m3 (68) 91.0
 
July 23, 2019, 8 p.m. 19.7 ppb (18) 2.0 ppb (2) N/A 18.0 ppb (17) N/A N/A 101.0 ppb (80) 0.59 ppb (7) 68.0 μg/m3 (56) 23.3 μg/m3 (74) 80.0
 
July 23, 2019, 7 p.m. 17.7 ppb (16) 2.1 ppb (2) N/A 16.0 ppb (15) N/A N/A 90.0 ppb (71) 0.51 ppb (6) 58.0 μg/m3 (52) 18.2 μg/m3 (63) 71.0
 
July 23, 2019, 6 p.m. 31.4 ppb (29) 5.0 ppb (5) N/A 26.0 ppb (24) N/A N/A 64.0 ppb (49) 0.57 ppb (6) 83.0 μg/m3 (64) 26.5 μg/m3 (81) 81.0
 
July 23, 2019, 5 p.m. 41.2 ppb (38) 10.1 ppb (9) N/A 31.0 ppb (29) N/A N/A 38.0 ppb (29) 0.64 ppb (7) 77.0 μg/m3 (61) 28.9 μg/m3 (86) 86.0
 
July 23, 2019, 4 p.m. 42.9 ppb (40) 14.1 ppb (13) N/A 29.0 ppb (27) N/A N/A 21.0 ppb (16) 0.61 ppb (7) 68.0 μg/m3 (56) 19.8 μg/m3 (67) 67.0
 
July 23, 2019, 3 p.m. 29.7 ppb (28) 8.0 ppb (7) N/A 22.0 ppb (20) N/A N/A 16.0 ppb (12) 0.49 ppb (5) 44.0 μg/m3 (40) 20.3 μg/m3 (68) 68.0
 
July 23, 2019, 2 p.m. 28.7 ppb (27) 5.8 ppb (5) N/A 23.0 ppb (21) N/A N/A 9.0 ppb (7) 0.47 ppb (5) 39.0 μg/m3 (35) 19.6 μg/m3 (66) 66.0
 
July 23, 2019, 1 p.m. 25.4 ppb (24) 3.3 ppb (3) N/A 22.0 ppb (20) N/A N/A 9.0 ppb (7) 0.41 ppb (5) 37.0 μg/m3 (34) 24.0 μg/m3 (76) 76.0
 
July 23, 2019, noon 24.8 ppb (23) 2.2 ppb (2) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) 0.4 ppb (4) 41.0 μg/m3 (37) 20.3 μg/m3 (68) 68.0
 
July 23, 2019, 11 a.m. 23.6 ppb (22) 1.7 ppb (2) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) 0.4 ppb (4) 52.0 μg/m3 (47) 17.9 μg/m3 (63) 63.0
 
July 23, 2019, 10 a.m. 22.8 ppb (21) 1.6 ppb (1) N/A 21.0 ppb (19) N/A N/A 14.0 ppb (11) 0.41 ppb (5) 40.0 μg/m3 (36) 17.4 μg/m3 (61) 61.0
 
July 23, 2019, 9 a.m. 22.3 ppb (21) 1.6 ppb (1) N/A 21.0 ppb (19) N/A N/A 15.0 ppb (12) 0.46 ppb (5) 41.0 μg/m3 (37) 18.7 μg/m3 (64) 64.0
 
July 23, 2019, 8 a.m. 22.6 ppb (21) 1.5 ppb (1) N/A 21.0 ppb (19) N/A N/A 16.0 ppb (12) 0.45 ppb (5) 30.0 μg/m3 (27) 16.1 μg/m3 (59) 59.0
 
July 23, 2019, 7 a.m. 19.9 ppb (18) 1.2 ppb (1) N/A 19.0 ppb (18) N/A N/A 22.0 ppb (17) 0.47 ppb (5) 34.0 μg/m3 (31) 20.8 μg/m3 (69) 69.0
 
July 23, 2019, 6 a.m. 18.1 ppb (17) 1.2 ppb (1) N/A 17.0 ppb (16) N/A N/A 23.0 ppb (18) 0.45 ppb (5) 33.0 μg/m3 (30) 17.2 μg/m3 (61) 61.0
 
July 23, 2019, 5 a.m. 17.7 ppb (16) 0.9 ppb (1) N/A 17.0 ppb (16) N/A N/A 26.0 ppb (20) 0.41 ppb (5) 37.0 μg/m3 (34) 14.7 μg/m3 (56) 56.0
 
July 23, 2019, 4 a.m. 18.8 ppb (17) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A 27.0 ppb (21) 0.4 ppb (4) 33.0 μg/m3 (30) 16.2 μg/m3 (59) 59.0
 
July 23, 2019, 3 a.m. 16.5 ppb (15) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 36.0 ppb (28) 0.38 ppb (4) 32.0 μg/m3 (29) 17.7 μg/m3 (62) 62.0
 
July 23, 2019, 2 a.m. 15.9 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (14) N/A N/A 46.0 ppb (35) 0.39 ppb (4) 36.0 μg/m3 (33) 16.4 μg/m3 (59) 59.0
 
July 23, 2019, 1 a.m. 13.4 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 63.0 ppb (48) 0.4 ppb (4) 42.0 μg/m3 (38) 19.3 μg/m3 (66) 66.0
 
July 23, 2019, midnight 14.3 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 84.0 ppb (66) 0.44 ppb (5) 53.0 μg/m3 (48) 21.8 μg/m3 (71) 71.0
 
July 22, 2019, 11 p.m. 13.1 ppb (12) 1.2 ppb (1) N/A 12.0 ppb (11) N/A N/A 104.0 ppb (82) 0.5 ppb (6) 52.0 μg/m3 (47) 18.7 μg/m3 (64) 82.0
 
July 22, 2019, 10 p.m. 14.5 ppb (13) 1.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 89.0 ppb (70) 0.48 ppb (5) 54.0 μg/m3 (49) 18.7 μg/m3 (64) 70.0
 
July 22, 2019, 9 p.m. 17.5 ppb (16) 2.4 ppb (2) N/A 15.0 ppb (14) N/A N/A 77.0 ppb (60) 0.47 ppb (5) 67.0 μg/m3 (56) 21.1 μg/m3 (69) 69.0
 
July 22, 2019, 8 p.m. 20.1 ppb (19) 3.3 ppb (3) N/A 17.0 ppb (16) N/A N/A 61.0 ppb (47) 0.45 ppb (5) 71.0 μg/m3 (58) 16.7 μg/m3 (60) 60.0
 
July 22, 2019, 7 p.m. 24.1 ppb (22) 6.0 ppb (6) N/A 18.0 ppb (17) N/A N/A 42.0 ppb (32) 0.44 ppb (5) 52.0 μg/m3 (47) 21.6 μg/m3 (70) 70.0
 
July 22, 2019, 6 p.m. 29.4 ppb (27) 9.7 ppb (9) N/A 20.0 ppb (19) N/A N/A 26.0 ppb (20) 0.45 ppb (5) 60.0 μg/m3 (52) 21.8 μg/m3 (71) 71.0
 
July 22, 2019, 5 p.m. 35.5 ppb (33) 14.1 ppb (13) N/A 21.0 ppb (19) N/A N/A 15.0 ppb (12) 0.48 ppb (5) 63.0 μg/m3 (54) 15.2 μg/m3 (57) 57.0
 
July 22, 2019, 4 p.m. 39.0 ppb (36) 17.2 ppb (16) N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) 0.5 ppb (6) 58.0 μg/m3 (52) 21.3 μg/m3 (70) 70.0
 
July 22, 2019, 3 p.m. 34.3 ppb (32) 14.0 ppb (13) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (6) 0.45 ppb (5) 48.0 μg/m3 (44) 16.7 μg/m3 (60) 60.0
 
July 22, 2019, 2 p.m. 29.1 ppb (27) 12.0 ppb (11) N/A 17.0 ppb (16) N/A N/A 7.0 ppb (5) 0.39 ppb (4) 28.0 μg/m3 (25) 14.7 μg/m3 (56) 56.0
 
July 22, 2019, 1 p.m. 21.9 ppb (20) 6.5 ppb (6) N/A 15.0 ppb (14) N/A N/A 3.0 ppb (2) 0.36 ppb (4) 22.0 μg/m3 (20) 10.3 μg/m3 (43) 43.0
 
July 22, 2019, noon 18.6 ppb (17) 2.6 ppb (2) N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) 0.36 ppb (4) 21.0 μg/m3 (19) 14.7 μg/m3 (56) 56.0
 
July 22, 2019, 11 a.m. 14.4 ppb (13) 1.9 ppb (2) N/A 13.0 ppb (12) N/A N/A 4.0 ppb (3) 0.36 ppb (4) 13.0 μg/m3 (12) 13.2 μg/m3 (53) 53.0
 
July 22, 2019, 10 a.m. 15.5 ppb (14) 2.2 ppb (2) N/A 13.0 ppb (12) N/A N/A 4.0 ppb (3) 0.35 ppb (4) 15.0 μg/m3 (14) 16.2 μg/m3 (59) 59.0
 
July 22, 2019, 9 a.m. 15.6 ppb (14) 1.7 ppb (2) N/A 14.0 ppb (13) N/A N/A 6.0 ppb (5) 0.36 ppb (4) 20.0 μg/m3 (18) 11.6 μg/m3 (48) 48.0
 
July 22, 2019, 8 a.m. 18.6 ppb (17) 1.6 ppb (1) N/A 17.0 ppb (16) N/A N/A 7.0 ppb (5) 0.37 ppb (4) 21.0 μg/m3 (19) 11.5 μg/m3 (48) 48.0
 
July 22, 2019, 7 a.m. 16.6 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A 12.0 ppb (9) 0.39 ppb (4) 17.0 μg/m3 (15) 17.2 μg/m3 (61) 61.0
 
July 22, 2019, 6 a.m. 14.9 ppb (14) 1.3 ppb (1) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) 0.36 ppb (4) 23.0 μg/m3 (21) 17.9 μg/m3 (63) 63.0
 
July 22, 2019, 5 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 21.0 ppb (16) 0.37 ppb (4) 21.0 μg/m3 (19) 14.7 μg/m3 (56) 56.0
 
July 22, 2019, 4 a.m. 18.4 ppb (17) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (19) 0.38 ppb (4) 25.0 μg/m3 (23) 16.4 μg/m3 (59) 59.0
 
July 22, 2019, 3 a.m. 11.6 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 38.0 ppb (29) 0.33 ppb (4) 29.0 μg/m3 (26) 13.2 μg/m3 (53) 53.0
 
July 22, 2019, 2 a.m. 10.6 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 43.0 ppb (33) 0.33 ppb (4) 22.0 μg/m3 (20) 15.2 μg/m3 (57) 57.0
 
July 22, 2019, 1 a.m. 6.5 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 56.0 ppb (43) 0.34 ppb (4) 24.0 μg/m3 (22) 13.2 μg/m3 (53) 53.0
 
July 22, 2019, midnight 6.6 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 74.0 ppb (57) 0.35 ppb (4) 35.0 μg/m3 (32) 21.3 μg/m3 (70) 70.0
 
July 21, 2019, 11 p.m. 8.5 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 85.0 ppb (67) 0.38 ppb (4) 39.0 μg/m3 (35) 15.4 μg/m3 (57) 67.0
 
July 21, 2019, 10 p.m. 6.2 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 92.0 ppb (72) 0.38 ppb (4) 36.0 μg/m3 (33) 13.5 μg/m3 (53) 72.0
 
July 21, 2019, 9 p.m. 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 81.0 ppb (63) 0.35 ppb (4) 26.0 μg/m3 (24) 15.4 μg/m3 (57) 63.0
 
July 21, 2019, 8 p.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 70.0 ppb (54) 0.34 ppb (4) 25.0 μg/m3 (23) 13.4 μg/m3 (53) 54.0
 
July 21, 2019, 7 p.m. 5.1 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 66.0 ppb (51) 0.34 ppb (4) 26.0 μg/m3 (24) 12.0 μg/m3 (50) 51.0
 
July 21, 2019, 6 p.m. 6.4 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (42) 0.32 ppb (4) 30.0 μg/m3 (27) 15.4 μg/m3 (57) 57.0
 
July 21, 2019, 5 p.m. 10.9 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.34 ppb (4) 24.0 μg/m3 (22) 11.4 μg/m3 (48) 48.0
 
July 21, 2019, 4 p.m. 13.3 ppb (12) 4.5 ppb (4) N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.35 ppb (4) 24.0 μg/m3 (22) 7.4 μg/m3 (31) 31.0
 
July 21, 2019, 3 p.m. 13.3 ppb (12) 5.1 ppb (5) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.36 ppb (4) 27.0 μg/m3 (25) 17.2 μg/m3 (61) 61.0
 
July 21, 2019, 2 p.m. 13.7 ppb (13) 5.5 ppb (5) N/A 8.0 ppb (7) N/A N/A 11.0 ppb (8) 0.36 ppb (4) 18.0 μg/m3 (16) 10.7 μg/m3 (45) 45.0
 
July 21, 2019, 1 p.m. 10.2 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 6.0 ppb (5) 0.4 ppb (4) 19.0 μg/m3 (17) 8.1 μg/m3 (34) 34.0
 
July 21, 2019, noon 10.3 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 4.0 ppb (3) 0.59 ppb (7) 21.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
July 21, 2019, 11 a.m. 9.7 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A 7.0 ppb (5) 0.46 ppb (5) 14.0 μg/m3 (13) 12.9 μg/m3 (52) 52.0
 
July 21, 2019, 10 a.m. 10.9 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 7.0 ppb (5) 0.36 ppb (4) 19.0 μg/m3 (17) 14.4 μg/m3 (55) 55.0
 
July 21, 2019, 9 a.m. 10.4 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) 0.37 ppb (4) 18.0 μg/m3 (16) 10.2 μg/m3 (42) 42.0
 
July 21, 2019, 8 a.m. 10.5 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 10.0 ppb (8) 0.39 ppb (4) 27.0 μg/m3 (25) 10.2 μg/m3 (42) 42.0
 
July 21, 2019, 7 a.m. 9.9 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.37 ppb (4) 20.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
July 21, 2019, 6 a.m. 10.7 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.37 ppb (4) 19.0 μg/m3 (17) 17.2 μg/m3 (61) 61.0
 
July 21, 2019, 5 a.m. 10.5 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 23.0 ppb (18) 0.35 ppb (4) 28.0 μg/m3 (25) 11.7 μg/m3 (49) 49.0
 
July 21, 2019, 4 a.m. 9.6 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.33 ppb (4) 32.0 μg/m3 (29) 14.7 μg/m3 (56) 56.0
 
July 21, 2019, 3 a.m. 7.9 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 36.0 ppb (28) 0.31 ppb (3) 24.0 μg/m3 (22) 13.5 μg/m3 (53) 53.0
 
July 21, 2019, 2 a.m. 7.5 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 43.0 ppb (33) 0.29 ppb (3) 24.0 μg/m3 (22) 14.2 μg/m3 (55) 55.0
 
July 21, 2019, 1 a.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.32 ppb (4) 32.0 μg/m3 (29) 13.7 μg/m3 (54) 54.0
 
July 21, 2019, midnight 8.2 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 71.0 ppb (55) 0.33 ppb (4) 35.0 μg/m3 (32) 16.9 μg/m3 (60) 60.0
 
July 20, 2019, 11 p.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 82.0 ppb (64) 0.34 ppb (4) 37.0 μg/m3 (34) 16.9 μg/m3 (60) 64.0
 
July 20, 2019, 10 p.m. 5.4 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 84.0 ppb (66) 0.36 ppb (4) 32.0 μg/m3 (29) 14.0 μg/m3 (54) 66.0
 
July 20, 2019, 9 p.m. 5.2 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 80.0 ppb (62) 0.36 ppb (4) 32.0 μg/m3 (29) 14.9 μg/m3 (56) 62.0
 
July 20, 2019, 8 p.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 72.0 ppb (56) 0.35 ppb (4) 28.0 μg/m3 (25) 16.2 μg/m3 (59) 59.0
 
July 20, 2019, 7 p.m. 8.0 ppb (7) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 61.0 ppb (47) 0.35 ppb (4) 35.0 μg/m3 (32) 14.4 μg/m3 (55) 55.0
 
July 20, 2019, 6 p.m. 9.2 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 48.0 ppb (37) 0.34 ppb (4) 36.0 μg/m3 (33) 16.4 μg/m3 (59) 59.0
 
July 20, 2019, 5 p.m. 9.7 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A 36.0 ppb (28) 0.33 ppb (4) 29.0 μg/m3 (26) 13.4 μg/m3 (53) 53.0
 
July 20, 2019, 4 p.m. 10.5 ppb (10) 3.3 ppb (3) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.32 ppb (4) 28.0 μg/m3 (25) 11.4 μg/m3 (48) 48.0
 
July 20, 2019, 3 p.m. 9.9 ppb (9) 2.9 ppb (3) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.31 ppb (3) 18.0 μg/m3 (16) 13.2 μg/m3 (53) 53.0
 
July 20, 2019, 2 p.m. 7.8 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) 0.3 ppb (3) 16.0 μg/m3 (15) 13.5 μg/m3 (53) 53.0
 
July 20, 2019, 1 p.m. 6.5 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) 0.3 ppb (3) 19.0 μg/m3 (17) 11.7 μg/m3 (49) 49.0
 
July 20, 2019, noon 6.5 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.3 ppb (3) 16.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
July 20, 2019, 11 a.m. 7.2 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) 0.32 ppb (4) 19.0 μg/m3 (17) 8.3 μg/m3 (35) 35.0
 
July 20, 2019, 10 a.m. 8.4 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.32 ppb (4) 18.0 μg/m3 (16) 17.4 μg/m3 (61) 61.0
 
July 20, 2019, 9 a.m. 10.3 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.32 ppb (4) 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
July 20, 2019, 8 a.m. 10.8 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.34 ppb (4) 15.0 μg/m3 (14) 11.7 μg/m3 (49) 49.0
 
July 20, 2019, 7 a.m. 11.2 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.35 ppb (4) 17.0 μg/m3 (15) 14.2 μg/m3 (55) 55.0
 
July 20, 2019, 6 a.m. 10.9 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.35 ppb (4) 20.0 μg/m3 (18) 8.3 μg/m3 (35) 35.0
 
July 20, 2019, 5 a.m. 11.4 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.36 ppb (4) 25.0 μg/m3 (23) 7.3 μg/m3 (30) 30.0
 
July 20, 2019, 4 a.m. 10.9 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.35 ppb (4) 21.0 μg/m3 (19) 9.5 μg/m3 (40) 40.0
 
July 20, 2019, 3 a.m. 10.9 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.34 ppb (4) 20.0 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
July 20, 2019, 2 a.m. 11.7 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) 0.33 ppb (4) 25.0 μg/m3 (23) 11.7 μg/m3 (49) 49.0
 
July 20, 2019, 1 a.m. 10.5 ppb (10) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 42.0 ppb (32) 0.33 ppb (4) 30.0 μg/m3 (27) 11.5 μg/m3 (48) 48.0
 
July 20, 2019, midnight 8.6 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 53.0 ppb (41) 0.32 ppb (4) 27.0 μg/m3 (25) 14.7 μg/m3 (56) 56.0
 
July 19, 2019, 11 p.m. 8.8 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.33 ppb (4) 32.0 μg/m3 (29) 10.0 μg/m3 (42) 44.0
 
July 19, 2019, 10 p.m. 8.4 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 62.0 ppb (48) 0.34 ppb (4) 42.0 μg/m3 (38) 11.7 μg/m3 (49) 49.0
 
July 19, 2019, 9 p.m. 7.5 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 60.0 ppb (46) 0.33 ppb (4) 39.0 μg/m3 (35) 9.8 μg/m3 (41) 46.0
 
July 19, 2019, 8 p.m. 12.1 ppb (11) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A 50.0 ppb (38) 0.34 ppb (4) 43.0 μg/m3 (39) 12.9 μg/m3 (52) 52.0
 
July 19, 2019, 7 p.m. 13.3 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A N/A 40.0 ppb (31) 0.35 ppb (4) 42.0 μg/m3 (38) 21.1 μg/m3 (69) 69.0
 
July 19, 2019, 6 p.m. 18.2 ppb (17) 6.5 ppb (6) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) 0.37 ppb (4) 49.0 μg/m3 (45) 18.9 μg/m3 (65) 65.0
 
July 19, 2019, 5 p.m. 16.6 ppb (15) 6.3 ppb (6) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.36 ppb (4) 38.0 μg/m3 (35) 17.4 μg/m3 (61) 61.0
 
July 19, 2019, 4 p.m. 16.7 ppb (15) 6.3 ppb (6) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) 0.35 ppb (4) 35.0 μg/m3 (32) 12.5 μg/m3 (51) 51.0
 
July 19, 2019, 3 p.m. 16.4 ppb (15) 6.9 ppb (6) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.33 ppb (4) 31.0 μg/m3 (28) 19.1 μg/m3 (65) 65.0
 
July 19, 2019, 2 p.m. 12.3 ppb (11) 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A 11.0 ppb (8) 0.31 ppb (3) 25.0 μg/m3 (23) 18.4 μg/m3 (64) 64.0
 
July 19, 2019, 1 p.m. 11.4 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A N/A 8.0 ppb (6) 0.31 ppb (3) 21.0 μg/m3 (19) 11.9 μg/m3 (50) 50.0
 
July 19, 2019, noon 11.9 ppb (11) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 8.0 ppb (6) 0.31 ppb (3) 26.0 μg/m3 (24) 11.5 μg/m3 (48) 48.0
 
July 19, 2019, 11 a.m. 14.4 ppb (13) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) 0.35 ppb (4) 27.0 μg/m3 (25) 19.3 μg/m3 (66) 66.0
 
July 19, 2019, 10 a.m. 14.9 ppb (14) 1.3 ppb (1) N/A 14.0 ppb (13) N/A N/A 9.0 ppb (7) 0.32 ppb (4) 27.0 μg/m3 (25) 13.5 μg/m3 (53) 53.0
 
July 19, 2019, 9 a.m. 10.4 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 6.0 ppb (5) 0.35 ppb (4) 20.0 μg/m3 (18) 14.6 μg/m3 (56) 56.0
 
July 19, 2019, 8 a.m. 12.3 ppb (11) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 8.0 ppb (6) 0.35 ppb (4) 21.0 μg/m3 (19) 13.4 μg/m3 (53) 53.0
 
July 19, 2019, 7 a.m. 13.9 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) 0.36 ppb (4) 26.0 μg/m3 (24) 10.3 μg/m3 (43) 43.0
 
July 19, 2019, 6 a.m. 14.2 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) 0.36 ppb (4) 31.0 μg/m3 (28) 16.2 μg/m3 (59) 59.0
 
July 19, 2019, 5 a.m. 12.8 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.37 ppb (4) 25.0 μg/m3 (23) 13.7 μg/m3 (54) 54.0
 
July 19, 2019, 4 a.m. 12.0 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) 0.36 ppb (4) 32.0 μg/m3 (29) 11.5 μg/m3 (48) 48.0
 
July 19, 2019, 3 a.m. 11.6 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) 0.34 ppb (4) 29.0 μg/m3 (26) 14.2 μg/m3 (55) 55.0
 
July 19, 2019, 2 a.m. 13.1 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 34.0 ppb (26) 0.34 ppb (4) 32.0 μg/m3 (29) 14.0 μg/m3 (54) 54.0
 
July 19, 2019, 1 a.m. 12.7 ppb (12) 1.5 ppb (1) N/A 11.0 ppb (10) N/A N/A 45.0 ppb (35) 0.35 ppb (4) 34.0 μg/m3 (31) 10.5 μg/m3 (44) 44.0
 
July 19, 2019, midnight 9.9 ppb (9) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A 61.0 ppb (47) 0.35 ppb (4) 43.0 μg/m3 (39) 15.2 μg/m3 (57) 57.0
 
July 18, 2019, 11 p.m. 6.8 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 71.0 ppb (55) 0.34 ppb (4) 37.0 μg/m3 (34) 14.7 μg/m3 (56) 56.0
 
July 18, 2019, 10 p.m. 6.4 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 73.0 ppb (57) 0.35 ppb (4) 39.0 μg/m3 (35) 16.7 μg/m3 (60) 60.0
 
July 18, 2019, 9 p.m. 7.7 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 71.0 ppb (55) 0.36 ppb (4) 48.0 μg/m3 (44) 19.1 μg/m3 (65) 65.0
 
July 18, 2019, 8 p.m. 10.2 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A N/A 65.0 ppb (50) 0.37 ppb (4) 52.0 μg/m3 (47) 16.9 μg/m3 (60) 60.0
 
July 18, 2019, 7 p.m. 15.5 ppb (14) 3.3 ppb (3) N/A 12.0 ppb (11) N/A N/A 51.0 ppb (39) 0.39 ppb (4) 61.0 μg/m3 (53) 18.8 μg/m3 (64) 64.0
 
July 18, 2019, 6 p.m. 17.6 ppb (16) 4.7 ppb (4) N/A 13.0 ppb (12) N/A N/A 38.0 ppb (29) 0.36 ppb (4) 58.0 μg/m3 (52) 23.1 μg/m3 (74) 74.0
 
July 18, 2019, 5 p.m. 18.2 ppb (17) 5.9 ppb (5) N/A 12.0 ppb (11) N/A N/A 28.0 ppb (22) 0.36 ppb (4) 52.0 μg/m3 (47) 21.3 μg/m3 (70) 70.0
 
July 18, 2019, 4 p.m. 17.7 ppb (16) 6.7 ppb (6) N/A 11.0 ppb (10) N/A N/A 21.0 ppb (16) 0.35 ppb (4) 41.0 μg/m3 (37) 16.4 μg/m3 (59) 59.0
 
July 18, 2019, 3 p.m. 10.3 ppb (10) 3.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.3 ppb (3) N/A 15.4 μg/m3 (57) 57.0
 
July 18, 2019, 2 p.m. 10.3 ppb (10) 3.4 ppb (3) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) 0.27 ppb (3) 29.0 μg/m3 (26) 12.9 μg/m3 (52) 52.0
 
July 18, 2019, 1 p.m. 8.6 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) 0.28 ppb (3) 24.0 μg/m3 (22) 10.7 μg/m3 (45) 45.0
 
July 18, 2019, noon 8.8 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 5.0 ppb (4) 0.28 ppb (3) 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
July 18, 2019, 11 a.m. 8.7 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 6.0 ppb (5) 0.31 ppb (3) 23.0 μg/m3 (21) 11.7 μg/m3 (49) 49.0
 
July 18, 2019, 10 a.m. 9.3 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 7.0 ppb (5) 0.32 ppb (4) 20.0 μg/m3 (18) 13.4 μg/m3 (53) 53.0
 
July 18, 2019, 9 a.m. 9.0 ppb (8) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) 0.32 ppb (4) 14.0 μg/m3 (13) 15.2 μg/m3 (57) 57.0
 
July 18, 2019, 8 a.m. 9.5 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 9.0 ppb (7) 0.31 ppb (3) 21.0 μg/m3 (19) 14.2 μg/m3 (55) 55.0
 
July 18, 2019, 7 a.m. 10.4 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.31 ppb (3) 19.0 μg/m3 (17) 12.2 μg/m3 (50) 50.0
 
July 18, 2019, 6 a.m. 10.8 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 0.3 ppb (3) 20.0 μg/m3 (18) 8.6 μg/m3 (36) 36.0
 
July 18, 2019, 5 a.m. 10.2 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.31 ppb (3) 24.0 μg/m3 (22) 9.8 μg/m3 (41) 41.0
 
July 18, 2019, 4 a.m. 9.4 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.31 ppb (3) 19.0 μg/m3 (17) 11.7 μg/m3 (49) 49.0
 
July 18, 2019, 3 a.m. 9.3 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.3 ppb (3) 15.0 μg/m3 (14) 13.8 μg/m3 (54) 54.0
 
July 18, 2019, 2 a.m. 7.5 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) 0.29 ppb (3) 22.0 μg/m3 (20) 12.2 μg/m3 (50) 50.0
 
July 18, 2019, 1 a.m. 7.1 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) 0.31 ppb (3) 23.0 μg/m3 (21) 13.2 μg/m3 (53) 53.0
 
July 18, 2019, midnight 7.3 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (41) 0.32 ppb (4) 35.0 μg/m3 (32) 14.2 μg/m3 (55) 55.0
 
July 17, 2019, 11 p.m. 7.3 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 61.0 ppb (47) 0.33 ppb (4) 46.0 μg/m3 (42) 17.2 μg/m3 (61) 61.0
 
July 17, 2019, 10 p.m. 7.8 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 66.0 ppb (51) 0.34 ppb (4) 52.0 μg/m3 (47) 18.7 μg/m3 (64) 64.0
 
July 17, 2019, 9 p.m. 8.2 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 71.0 ppb (55) 0.35 ppb (4) 60.0 μg/m3 (52) 19.3 μg/m3 (66) 66.0
 
July 17, 2019, 8 p.m. 10.1 ppb (9) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 69.0 ppb (53) 0.37 ppb (4) 54.0 μg/m3 (49) 22.1 μg/m3 (71) 71.0
 
July 17, 2019, 7 p.m. 15.1 ppb (14) 2.9 ppb (3) N/A 12.0 ppb (11) N/A N/A 57.0 ppb (44) 0.39 ppb (4) 62.0 μg/m3 (54) 24.6 μg/m3 (77) 77.0
 
July 17, 2019, 6 p.m. 16.6 ppb (15) 3.8 ppb (4) N/A 13.0 ppb (12) N/A N/A 45.0 ppb (35) 0.4 ppb (4) 52.0 μg/m3 (47) 20.9 μg/m3 (69) 69.0
 
July 17, 2019, 5 p.m. 18.0 ppb (17) 5.3 ppb (5) N/A 13.0 ppb (12) N/A N/A 32.0 ppb (25) 0.37 ppb (4) 64.0 μg/m3 (54) 17.2 μg/m3 (61) 61.0
 
July 17, 2019, 4 p.m. 19.2 ppb (18) 6.7 ppb (6) N/A 13.0 ppb (12) N/A N/A 23.0 ppb (18) 0.34 ppb (4) 37.0 μg/m3 (34) 16.9 μg/m3 (60) 60.0
 
July 17, 2019, 3 p.m. 13.1 ppb (12) 4.5 ppb (4) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) 0.3 ppb (3) 41.0 μg/m3 (37) 17.9 μg/m3 (63) 63.0
 
July 17, 2019, 2 p.m. 11.9 ppb (11) 3.8 ppb (4) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) 0.29 ppb (3) 35.0 μg/m3 (32) 15.4 μg/m3 (57) 57.0
 
July 17, 2019, 1 p.m. 8.3 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) 0.28 ppb (3) 32.0 μg/m3 (29) 17.9 μg/m3 (63) 63.0
 
July 17, 2019, noon 6.3 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) 0.27 ppb (3) 20.0 μg/m3 (18) 19.1 μg/m3 (65) 65.0
 
July 17, 2019, 11 a.m. 7.3 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.27 ppb (3) 25.0 μg/m3 (23) 13.2 μg/m3 (53) 53.0
 
July 17, 2019, 10 a.m. 8.2 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) 0.26 ppb (3) 27.0 μg/m3 (25) 15.2 μg/m3 (57) 57.0
 
July 17, 2019, 9 a.m. 9.8 ppb (9) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) 0.29 ppb (3) 28.0 μg/m3 (25) 14.9 μg/m3 (56) 56.0
 
July 17, 2019, 8 a.m. 9.3 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) 0.3 ppb (3) 24.0 μg/m3 (22) 10.3 μg/m3 (43) 43.0
 
July 17, 2019, 7 a.m. 10.0 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.28 ppb (3) 28.0 μg/m3 (25) 16.4 μg/m3 (59) 59.0
 
July 17, 2019, 6 a.m. 10.3 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.27 ppb (3) 30.0 μg/m3 (27) 15.9 μg/m3 (58) 58.0
 
July 17, 2019, 5 a.m. 11.6 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) 0.3 ppb (3) 38.0 μg/m3 (35) 14.0 μg/m3 (54) 54.0
 
July 17, 2019, 4 a.m. 12.0 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.31 ppb (3) 33.0 μg/m3 (30) 12.7 μg/m3 (51) 51.0
 
July 17, 2019, 3 a.m. 9.5 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.29 ppb (3) 29.0 μg/m3 (26) 12.7 μg/m3 (51) 51.0
 
July 17, 2019, 2 a.m. 8.7 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.29 ppb (3) 34.0 μg/m3 (31) 12.7 μg/m3 (51) 51.0