AQSQID: 060658005

Site Name: Mira Loma - Van Buren

Location: Riverside Co, CA

Reporting: True, Located: True

Current AQI: 60.0

Riverside Co CA, US: 33.996387, -117.4925

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 20, 2019, 10 p.m. 4.3 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 77.0 ppb (60) 0.13 ppb (1) 57.0 μg/m3 (51) 8.3 μg/m3 (35) 60.0
 
July 20, 2019, 9 p.m. 3.9 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (57) 0.13 ppb (1) 62.0 μg/m3 (54) 8.5 μg/m3 (35) 57.0
 
July 20, 2019, 8 p.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 69.0 ppb (53) 0.11 ppb (1) 47.0 μg/m3 (43) 11.4 μg/m3 (48) 53.0
 
July 20, 2019, 7 p.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 63.0 ppb (48) 0.13 ppb (1) 60.0 μg/m3 (52) 14.3 μg/m3 (55) 55.0
 
July 20, 2019, 6 p.m. 6.3 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) 0.13 ppb (1) 64.0 μg/m3 (54) 16.5 μg/m3 (60) 60.0
 
July 20, 2019, 5 p.m. 7.7 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.14 ppb (2) 56.0 μg/m3 (50) 20.5 μg/m3 (68) 68.0
 
July 20, 2019, 4 p.m. 9.4 ppb (9) 3.2 ppb (3) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.15 ppb (2) 52.0 μg/m3 (47) 14.3 μg/m3 (55) 55.0
 
July 20, 2019, 3 p.m. 10.1 ppb (9) 2.5 ppb (2) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.15 ppb (2) 43.0 μg/m3 (39) 15.3 μg/m3 (57) 57.0
 
July 20, 2019, 2 p.m. 9.5 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.15 ppb (2) 41.0 μg/m3 (37) 14.6 μg/m3 (56) 56.0
 
July 20, 2019, 1 p.m. 8.6 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.14 ppb (2) 42.0 μg/m3 (38) 12.4 μg/m3 (51) 51.0
 
July 20, 2019, noon 7.5 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.13 ppb (1) 34.0 μg/m3 (31) 12.8 μg/m3 (52) 52.0
 
July 20, 2019, 11 a.m. 7.5 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) 0.12 ppb (1) 38.0 μg/m3 (35) 11.1 μg/m3 (46) 46.0
 
July 20, 2019, 10 a.m. 7.9 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) 0.12 ppb (1) 31.0 μg/m3 (28) 7.8 μg/m3 (32) 32.0
 
July 20, 2019, 9 a.m. 8.7 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 13.0 ppb (10) 0.12 ppb (1) 34.0 μg/m3 (31) 4.7 μg/m3 (20) 31.0
 
July 20, 2019, 8 a.m. 9.9 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) 0.13 ppb (1) 36.0 μg/m3 (33) 6.1 μg/m3 (25) 33.0
 
July 20, 2019, 7 a.m. 9.6 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.13 ppb (1) 33.0 μg/m3 (30) 8.8 μg/m3 (37) 37.0
 
July 20, 2019, 6 a.m. 9.5 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.12 ppb (1) 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
July 20, 2019, 5 a.m. 8.9 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.11 ppb (1) 31.0 μg/m3 (28) 10.9 μg/m3 (45) 45.0
 
July 20, 2019, 4 a.m. 8.6 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.11 ppb (1) 38.0 μg/m3 (35) 8.3 μg/m3 (35) 35.0
 
July 20, 2019, 3 a.m. 7.5 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 0.11 ppb (1) 38.0 μg/m3 (35) 5.6 μg/m3 (23) 35.0
 
July 20, 2019, 2 a.m. 5.8 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) 0.1 ppb (1) 42.0 μg/m3 (38) 6.1 μg/m3 (25) 38.0
 
July 20, 2019, 1 a.m. 4.8 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) 0.1 ppb (1) 52.0 μg/m3 (47) 6.3 μg/m3 (26) 47.0
 
July 20, 2019, midnight 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (42) 0.1 ppb (1) 56.0 μg/m3 (50) 5.9 μg/m3 (25) 50.0
 
July 19, 2019, 11 p.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) 0.11 ppb (1) 72.0 μg/m3 (58) 7.5 μg/m3 (31) 58.0
 
July 19, 2019, 10 p.m. 4.6 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (49) 0.09 ppb (1) 68.0 μg/m3 (56) 9.9 μg/m3 (41) 56.0
 
July 19, 2019, 9 p.m. 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (52) 0.1 ppb (1) 55.0 μg/m3 (50) 11.8 μg/m3 (49) 52.0
 
July 19, 2019, 8 p.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 62.0 ppb (48) 0.1 ppb (1) 61.0 μg/m3 (53) 13.5 μg/m3 (53) 53.0
 
July 19, 2019, 7 p.m. 6.5 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (43) 0.12 ppb (1) 74.0 μg/m3 (60) 17.2 μg/m3 (61) 61.0
 
July 19, 2019, 6 p.m. 7.0 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) 0.12 ppb (1) 64.0 μg/m3 (54) 14.1 μg/m3 (54) 54.0
 
July 19, 2019, 5 p.m. 8.5 ppb (8) 2.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 66.0 μg/m3 (56) 17.0 μg/m3 (61) 61.0
 
July 19, 2019, 4 p.m. 10.8 ppb (10) 4.4 ppb (4) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.13 ppb (1) 59.0 μg/m3 (52) 16.5 μg/m3 (60) 60.0
 
July 19, 2019, 3 p.m. 10.2 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.12 ppb (1) 47.0 μg/m3 (43) 16.8 μg/m3 (60) 60.0
 
July 19, 2019, 2 p.m. 10.1 ppb (9) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A 13.0 ppb (10) 0.12 ppb (1) 40.0 μg/m3 (36) 12.6 μg/m3 (51) 51.0
 
July 19, 2019, 1 p.m. 13.0 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) 0.14 ppb (2) 38.0 μg/m3 (35) 13.3 μg/m3 (53) 53.0
 
July 19, 2019, noon 11.7 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A N/A 8.0 ppb (6) 0.14 ppb (2) 34.0 μg/m3 (31) 7.3 μg/m3 (30) 31.0
 
July 19, 2019, 11 a.m. 8.5 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 9.0 ppb (7) 0.1 ppb (1) 31.0 μg/m3 (28) 5.1 μg/m3 (21) 28.0
 
July 19, 2019, 10 a.m. 7.8 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.09 ppb (1) 31.0 μg/m3 (28) 8.3 μg/m3 (35) 35.0
 
July 19, 2019, 9 a.m. 7.7 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) 0.1 ppb (1) 37.0 μg/m3 (34) 10.2 μg/m3 (42) 42.0
 
July 19, 2019, 8 a.m. 9.1 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) 0.1 ppb (1) 44.0 μg/m3 (40) 11.1 μg/m3 (46) 46.0
 
July 19, 2019, 7 a.m. 8.3 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.1 ppb (1) 37.0 μg/m3 (34) 11.6 μg/m3 (48) 48.0
 
July 19, 2019, 6 a.m. 7.9 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.1 ppb (1) 36.0 μg/m3 (33) 9.5 μg/m3 (40) 40.0
 
July 19, 2019, 5 a.m. 8.0 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) 0.1 ppb (1) 43.0 μg/m3 (39) 8.8 μg/m3 (37) 39.0
 
July 19, 2019, 4 a.m. 8.8 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.11 ppb (1) 46.0 μg/m3 (42) 10.0 μg/m3 (42) 42.0
 
July 19, 2019, 3 a.m. 7.9 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 0.11 ppb (1) 60.0 μg/m3 (52) 9.8 μg/m3 (41) 52.0
 
July 19, 2019, 2 a.m. 7.0 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.1 ppb (1) 60.0 μg/m3 (52) 8.3 μg/m3 (35) 52.0
 
July 19, 2019, 1 a.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.07 ppb (1) 61.0 μg/m3 (53) 7.1 μg/m3 (30) 53.0
 
July 19, 2019, midnight 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) 0.08 ppb (1) 60.0 μg/m3 (52) 9.3 μg/m3 (39) 52.0
 
July 18, 2019, 11 p.m. 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (47) 0.08 ppb (1) 63.0 μg/m3 (54) 12.5 μg/m3 (51) 54.0
 
July 18, 2019, 10 p.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 71.0 ppb (55) 0.1 ppb (1) 70.0 μg/m3 (58) 13.5 μg/m3 (53) 58.0
 
July 18, 2019, 9 p.m. 5.1 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 75.0 ppb (58) 0.13 ppb (1) 72.0 μg/m3 (58) 13.8 μg/m3 (54) 58.0
 
July 18, 2019, 8 p.m. 6.6 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 71.0 ppb (55) 0.12 ppb (1) 70.0 μg/m3 (58) 14.7 μg/m3 (56) 58.0
 
July 18, 2019, 7 p.m. 10.8 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 60.0 ppb (46) 0.15 ppb (2) 84.0 μg/m3 (64) 18.2 μg/m3 (63) 64.0
 
July 18, 2019, 6 p.m. 9.4 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (6) N/A N/A 52.0 ppb (40) 0.14 ppb (2) 74.0 μg/m3 (60) 19.0 μg/m3 (65) 65.0
 
July 18, 2019, 5 p.m. 13.5 ppb (12) 3.6 ppb (3) N/A 10.0 ppb (9) N/A N/A 38.0 ppb (29) 0.15 ppb (2) 72.0 μg/m3 (58) 18.8 μg/m3 (64) 64.0
 
July 18, 2019, 4 p.m. 17.2 ppb (16) 6.5 ppb (6) N/A 11.0 ppb (10) N/A N/A 23.0 ppb (18) 0.2 ppb (2) 64.0 μg/m3 (54) 17.8 μg/m3 (62) 62.0
 
July 18, 2019, 3 p.m. 16.3 ppb (15) 6.9 ppb (6) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.15 ppb (2) 61.0 μg/m3 (53) 17.7 μg/m3 (62) 62.0
 
July 18, 2019, 2 p.m. 17.4 ppb (16) 7.9 ppb (7) N/A 9.0 ppb (8) N/A N/A 10.0 ppb (8) 0.15 ppb (2) 65.0 μg/m3 (55) 14.0 μg/m3 (54) 55.0
 
July 18, 2019, 1 p.m. 20.5 ppb (19) 8.9 ppb (8) N/A 12.0 ppb (11) N/A N/A 4.0 ppb (3) 0.19 ppb (2) 70.0 μg/m3 (58) 9.0 μg/m3 (38) 58.0
 
July 18, 2019, noon 13.2 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (9) N/A N/A 5.0 ppb (4) 0.16 ppb (2) 41.0 μg/m3 (37) 8.5 μg/m3 (35) 37.0
 
July 18, 2019, 11 a.m. 9.0 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) 0.11 ppb (1) 37.0 μg/m3 (34) 8.1 μg/m3 (34) 34.0
 
July 18, 2019, 10 a.m. 6.8 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) 0.08 ppb (1) 44.0 μg/m3 (40) 8.1 μg/m3 (34) 40.0
 
July 18, 2019, 9 a.m. 6.2 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) 0.07 ppb (1) 42.0 μg/m3 (38) 9.9 μg/m3 (41) 41.0
 
July 18, 2019, 8 a.m. 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) 0.08 ppb (1) 41.0 μg/m3 (37) 9.3 μg/m3 (39) 39.0
 
July 18, 2019, 7 a.m. 8.5 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) 0.08 ppb (1) 40.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
July 18, 2019, 6 a.m. 7.1 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.08 ppb (1) 44.0 μg/m3 (40) 12.1 μg/m3 (50) 50.0
 
July 18, 2019, 5 a.m. 7.6 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.09 ppb (1) 47.0 μg/m3 (43) 10.6 μg/m3 (44) 44.0
 
July 18, 2019, 4 a.m. 5.9 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.08 ppb (1) 41.0 μg/m3 (37) 8.5 μg/m3 (35) 37.0
 
July 18, 2019, 3 a.m. 5.2 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.08 ppb (1) 38.0 μg/m3 (35) 7.6 μg/m3 (32) 35.0
 
July 18, 2019, 2 a.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.08 ppb (1) 46.0 μg/m3 (42) 4.9 μg/m3 (20) 42.0
 
July 18, 2019, 1 a.m. 4.6 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) 0.09 ppb (1) 57.0 μg/m3 (51) 6.3 μg/m3 (26) 51.0
 
July 18, 2019, midnight 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) 0.08 ppb (1) 53.0 μg/m3 (48) 8.5 μg/m3 (35) 48.0
 
July 17, 2019, 11 p.m. 4.8 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) 0.09 ppb (1) 77.0 μg/m3 (61) 11.8 μg/m3 (49) 61.0
 
July 17, 2019, 10 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 68.0 ppb (52) 0.1 ppb (1) 97.0 μg/m3 (71) 13.5 μg/m3 (53) 71.0
 
July 17, 2019, 9 p.m. 6.1 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 77.0 ppb (60) 0.14 ppb (2) 104.0 μg/m3 (74) 18.2 μg/m3 (63) 74.0
 
July 17, 2019, 8 p.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 79.0 ppb (62) 0.16 ppb (2) 80.0 μg/m3 (62) 16.9 μg/m3 (60) 62.0
 
July 17, 2019, 7 p.m. 7.5 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 71.0 ppb (55) 0.13 ppb (1) 88.0 μg/m3 (66) 17.2 μg/m3 (61) 66.0
 
July 17, 2019, 6 p.m. 8.3 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 61.0 ppb (47) 0.15 ppb (2) 69.0 μg/m3 (57) 20.2 μg/m3 (67) 67.0
 
July 17, 2019, 5 p.m. 11.7 ppb (11) 2.8 ppb (3) N/A 9.0 ppb (8) N/A N/A 42.0 ppb (32) 0.16 ppb (2) 79.0 μg/m3 (62) 21.4 μg/m3 (70) 70.0
 
July 17, 2019, 4 p.m. 15.2 ppb (14) 5.2 ppb (5) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.17 ppb (2) 68.0 μg/m3 (56) 18.8 μg/m3 (64) 64.0
 
July 17, 2019, 3 p.m. 16.6 ppb (15) 6.9 ppb (6) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.19 ppb (2) 61.0 μg/m3 (53) 22.7 μg/m3 (73) 73.0
 
July 17, 2019, 2 p.m. 18.0 ppb (17) 7.8 ppb (7) N/A 10.0 ppb (9) N/A N/A 11.0 ppb (8) 0.17 ppb (2) 81.0 μg/m3 (63) 16.7 μg/m3 (60) 63.0
 
July 17, 2019, 1 p.m. 15.0 ppb (14) 4.7 ppb (4) N/A 10.0 ppb (9) N/A N/A 7.0 ppb (5) 0.16 ppb (2) 57.0 μg/m3 (51) 14.3 μg/m3 (55) 55.0
 
July 17, 2019, noon 15.8 ppb (15) 5.9 ppb (5) N/A 10.0 ppb (9) N/A N/A 7.0 ppb (5) 0.15 ppb (2) 44.0 μg/m3 (40) 10.8 μg/m3 (45) 45.0
 
July 17, 2019, 11 a.m. 8.7 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 9.0 ppb (7) 0.12 ppb (1) 39.0 μg/m3 (35) 9.9 μg/m3 (41) 41.0
 
July 17, 2019, 10 a.m. 6.9 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.09 ppb (1) 36.0 μg/m3 (33) 11.9 μg/m3 (50) 50.0
 
July 17, 2019, 9 a.m. 7.7 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) 0.09 ppb (1) 35.0 μg/m3 (32) 13.1 μg/m3 (52) 52.0
 
July 17, 2019, 8 a.m. 6.6 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.09 ppb (1) 36.0 μg/m3 (33) 14.8 μg/m3 (56) 56.0
 
July 17, 2019, 7 a.m. 7.5 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.1 ppb (1) 40.0 μg/m3 (36) 12.3 μg/m3 (51) 51.0
 
July 17, 2019, 6 a.m. 8.8 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.11 ppb (1) 45.0 μg/m3 (41) 12.8 μg/m3 (52) 52.0
 
July 17, 2019, 5 a.m. 10.7 ppb (10) 2.1 ppb (2) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.14 ppb (2) 57.0 μg/m3 (51) 15.0 μg/m3 (56) 56.0
 
July 17, 2019, 4 a.m. 8.7 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) 0.13 ppb (1) 67.0 μg/m3 (56) 18.8 μg/m3 (64) 64.0
 
July 17, 2019, 3 a.m. 7.1 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.11 ppb (1) 90.0 μg/m3 (68) 10.0 μg/m3 (42) 68.0
 
July 17, 2019, 2 a.m. 6.4 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.11 ppb (1) 74.0 μg/m3 (60) 13.8 μg/m3 (54) 60.0
 
July 17, 2019, 1 a.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) 0.09 ppb (1) 61.0 μg/m3 (53) 13.8 μg/m3 (54) 54.0
 
July 17, 2019, midnight 4.1 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 61.0 ppb (47) 0.09 ppb (1) 60.0 μg/m3 (52) 13.2 μg/m3 (53) 53.0
 
July 16, 2019, 11 p.m. 3.9 ppb (4) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) 0.09 ppb (1) 60.0 μg/m3 (52) 13.2 μg/m3 (53) 53.0
 
July 16, 2019, 10 p.m. 4.6 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 77.0 ppb (60) 0.14 ppb (2) 79.0 μg/m3 (62) 13.7 μg/m3 (54) 62.0
 
July 16, 2019, 9 p.m. 5.2 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 87.0 ppb (68) 0.14 ppb (2) 85.0 μg/m3 (65) 12.0 μg/m3 (50) 68.0
 
July 16, 2019, 8 p.m. 6.6 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 95.0 ppb (75) 0.17 ppb (2) 71.0 μg/m3 (58) 9.9 μg/m3 (41) 75.0
 
July 16, 2019, 7 p.m. 8.4 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 101.0 ppb (80) 0.21 ppb (2) 74.0 μg/m3 (60) 16.9 μg/m3 (60) 80.0
 
July 16, 2019, 6 p.m. 7.2 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 83.0 ppb (65) 0.17 ppb (2) 84.0 μg/m3 (64) 12.5 μg/m3 (51) 65.0
 
July 16, 2019, 5 p.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 75.0 ppb (58) 0.15 ppb (2) 59.0 μg/m3 (52) 9.2 μg/m3 (38) 58.0
 
July 16, 2019, 4 p.m. 10.8 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A N/A 60.0 ppb (46) 0.21 ppb (2) 64.0 μg/m3 (54) 16.2 μg/m3 (59) 59.0
 
July 16, 2019, 3 p.m. 22.6 ppb (21) 5.9 ppb (5) N/A 17.0 ppb (16) N/A N/A 35.0 ppb (27) 0.31 ppb (3) 89.0 μg/m3 (67) 22.9 μg/m3 (73) 73.0
 
July 16, 2019, 2 p.m. 36.2 ppb (34) 12.6 ppb (12) N/A 24.0 ppb (22) N/A N/A 15.0 ppb (12) 0.39 ppb (4) 82.0 μg/m3 (64) 22.7 μg/m3 (73) 73.0
 
July 16, 2019, 1 p.m. 35.7 ppb (33) 15.8 ppb (15) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (4) 0.47 ppb (5) 96.0 μg/m3 (70) 21.4 μg/m3 (70) 70.0
 
July 16, 2019, noon 30.0 ppb (28) 9.2 ppb (9) N/A 21.0 ppb (19) N/A N/A 3.0 ppb (2) 0.37 ppb (4) 71.0 μg/m3 (58) 18.8 μg/m3 (64) 64.0
 
July 16, 2019, 11 a.m. 24.9 ppb (23) 5.6 ppb (5) N/A 19.0 ppb (18) N/A N/A 7.0 ppb (5) 0.3 ppb (3) 56.0 μg/m3 (50) 16.8 μg/m3 (60) 60.0
 
July 16, 2019, 10 a.m. 20.8 ppb (19) 4.1 ppb (4) N/A 17.0 ppb (16) N/A N/A 8.0 ppb (6) 0.3 ppb (3) 55.0 μg/m3 (50) 18.3 μg/m3 (63) 63.0
 
July 16, 2019, 9 a.m. 15.1 ppb (14) 2.0 ppb (2) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) 0.24 ppb (3) 65.0 μg/m3 (55) 19.8 μg/m3 (67) 67.0
 
July 16, 2019, 8 a.m. 14.2 ppb (13) 2.4 ppb (2) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 0.26 ppb (3) 59.0 μg/m3 (52) 17.5 μg/m3 (62) 62.0
 
July 16, 2019, 7 a.m. 13.7 ppb (13) 2.6 ppb (2) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.26 ppb (3) 60.0 μg/m3 (52) 16.5 μg/m3 (60) 60.0
 
July 16, 2019, 6 a.m. 11.9 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) 0.26 ppb (3) 60.0 μg/m3 (52) 16.5 μg/m3 (60) 60.0
 
July 16, 2019, 5 a.m. 11.7 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 48.0 ppb (37) 0.21 ppb (2) 109.0 μg/m3 (77) 21.9 μg/m3 (71) 77.0
 
July 16, 2019, 4 a.m. 12.5 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 55.0 ppb (42) 0.19 ppb (2) 78.0 μg/m3 (62) 16.3 μg/m3 (59) 62.0
 
July 16, 2019, 3 a.m. 7.8 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 69.0 ppb (53) 0.15 ppb (2) 66.0 μg/m3 (56) 13.1 μg/m3 (52) 56.0
 
July 16, 2019, 2 a.m. 7.3 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 75.0 ppb (58) 0.16 ppb (2) 56.0 μg/m3 (50) 13.1 μg/m3 (52) 58.0
 
July 16, 2019, 1 a.m. 5.8 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 84.0 ppb (66) 0.14 ppb (2) 51.0 μg/m3 (46) 13.2 μg/m3 (53) 66.0
 
July 16, 2019, midnight 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 84.0 ppb (66) 0.11 ppb (1) 47.0 μg/m3 (43) 9.9 μg/m3 (41) 66.0
 
July 15, 2019, 11 p.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 87.0 ppb (68) 0.13 ppb (1) 54.0 μg/m3 (49) 10.8 μg/m3 (45) 68.0
 
July 15, 2019, 10 p.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 98.0 ppb (78) 0.15 ppb (2) 72.0 μg/m3 (58) 14.0 μg/m3 (54) 78.0
 
July 15, 2019, 9 p.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 101.0 ppb (80) 0.18 ppb (2) 62.0 μg/m3 (54) 15.2 μg/m3 (57) 80.0
 
July 15, 2019, 8 p.m. 7.8 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 101.0 ppb (80) 0.2 ppb (2) 73.0 μg/m3 (59) 13.0 μg/m3 (52) 80.0
 
July 15, 2019, 7 p.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 86.0 ppb (68) 0.15 ppb (2) 73.0 μg/m3 (59) 11.3 μg/m3 (47) 68.0
 
July 15, 2019, 6 p.m. 8.6 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 81.0 ppb (63) 0.19 ppb (2) 81.0 μg/m3 (63) 19.2 μg/m3 (65) 65.0
 
July 15, 2019, 5 p.m. 11.1 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 66.0 ppb (51) 0.22 ppb (2) 78.0 μg/m3 (62) 18.4 μg/m3 (64) 64.0
 
July 15, 2019, 4 p.m. 16.6 ppb (15) 4.0 ppb (4) N/A 13.0 ppb (12) N/A N/A 42.0 ppb (32) 0.25 ppb (3) 88.0 μg/m3 (66) 24.5 μg/m3 (77) 77.0
 
July 15, 2019, 3 p.m. 15.3 ppb (14) 4.5 ppb (4) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) 0.23 ppb (3) 81.0 μg/m3 (63) 20.2 μg/m3 (67) 67.0
 
July 15, 2019, 2 p.m. 18.2 ppb (17) 6.4 ppb (6) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.24 ppb (3) 73.0 μg/m3 (59) 19.2 μg/m3 (65) 65.0
 
July 15, 2019, 1 p.m. 22.3 ppb (21) 8.2 ppb (8) N/A 14.0 ppb (13) N/A N/A 6.0 ppb (5) 0.28 ppb (3) 59.0 μg/m3 (52) 21.0 μg/m3 (69) 69.0
 
July 15, 2019, noon 16.9 ppb (16) 3.2 ppb (3) N/A 14.0 ppb (13) N/A N/A 5.0 ppb (4) 0.23 ppb (3) 58.0 μg/m3 (52) 17.5 μg/m3 (62) 62.0
 
July 15, 2019, 11 a.m. 11.7 ppb (11) 1.7 ppb (2) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) 0.22 ppb (2) 53.0 μg/m3 (48) 16.5 μg/m3 (60) 60.0
 
July 15, 2019, 10 a.m. 12.8 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 57.0 μg/m3 (51) 12.6 μg/m3 (51) 51.0
 
July 15, 2019, 9 a.m. 9.1 ppb (8) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.17 ppb (2) 44.0 μg/m3 (40) 18.5 μg/m3 (64) 64.0
 
July 15, 2019, 8 a.m. 9.2 ppb (9) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.18 ppb (2) 52.0 μg/m3 (47) 18.0 μg/m3 (63) 63.0
 
July 15, 2019, 7 a.m. 10.7 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.18 ppb (2) 62.0 μg/m3 (54) 18.8 μg/m3 (64) 64.0
 
July 15, 2019, 6 a.m. 8.2 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 36.0 ppb (28) 0.16 ppb (2) 66.0 μg/m3 (56) 21.0 μg/m3 (69) 69.0
 
July 15, 2019, 5 a.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) 0.17 ppb (2) 56.0 μg/m3 (50) 16.0 μg/m3 (59) 59.0
 
July 15, 2019, 4 a.m. 7.7 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 46.0 ppb (35) 0.19 ppb (2) 66.0 μg/m3 (56) 19.7 μg/m3 (66) 66.0
 
July 15, 2019, 3 a.m. 7.9 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.27 ppb (3) 98.0 μg/m3 (72) 22.4 μg/m3 (72) 72.0
 
July 15, 2019, 2 a.m. 6.3 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 69.0 ppb (53) 0.25 ppb (3) 91.0 μg/m3 (68) 21.0 μg/m3 (69) 69.0
 
July 15, 2019, 1 a.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 76.0 ppb (59) 0.14 ppb (2) 57.0 μg/m3 (51) 13.8 μg/m3 (54) 59.0
 
July 15, 2019, midnight 4.0 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 76.0 ppb (59) 0.13 ppb (1) 55.0 μg/m3 (50) 13.2 μg/m3 (53) 59.0
 
July 14, 2019, 11 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 77.0 ppb (60) 0.12 ppb (1) 61.0 μg/m3 (53) 9.9 μg/m3 (41) 60.0
 
July 14, 2019, 10 p.m. 3.5 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) 0.1 ppb (1) 57.0 μg/m3 (51) 8.9 μg/m3 (37) 52.0
 
July 14, 2019, 9 p.m. 3.4 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 73.0 ppb (57) 0.13 ppb (1) 47.0 μg/m3 (43) 11.3 μg/m3 (47) 57.0
 
July 14, 2019, 8 p.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 81.0 ppb (63) 0.14 ppb (2) 51.0 μg/m3 (46) 12.3 μg/m3 (51) 63.0
 
July 14, 2019, 7 p.m. 6.1 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 91.0 ppb (72) 0.2 ppb (2) 64.0 μg/m3 (54) 22.3 μg/m3 (72) 72.0
 
July 14, 2019, 6 p.m. 7.1 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 87.0 ppb (68) 0.23 ppb (3) 80.0 μg/m3 (62) 25.9 μg/m3 (80) 80.0
 
July 14, 2019, 5 p.m. 11.7 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A N/A 58.0 ppb (45) 0.24 ppb (3) 85.0 μg/m3 (65) 25.7 μg/m3 (79) 79.0
 
July 14, 2019, 4 p.m. 13.6 ppb (13) 3.7 ppb (3) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) 0.22 ppb (2) 68.0 μg/m3 (56) 26.0 μg/m3 (80) 80.0
 
July 14, 2019, 3 p.m. 12.3 ppb (11) 4.1 ppb (4) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.18 ppb (2) 50.0 μg/m3 (45) 25.0 μg/m3 (78) 78.0
 
July 14, 2019, 2 p.m. 8.4 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.15 ppb (2) 54.0 μg/m3 (49) 16.7 μg/m3 (60) 60.0
 
July 14, 2019, 1 p.m. 8.6 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) 0.14 ppb (2) 60.0 μg/m3 (52) 21.2 μg/m3 (70) 70.0
 
July 14, 2019, noon 8.4 ppb (8) 1.9 ppb (2) N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) 0.14 ppb (2) 42.0 μg/m3 (38) 13.6 μg/m3 (53) 53.0
 
July 14, 2019, 11 a.m. 5.7 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) 0.12 ppb (1) 41.0 μg/m3 (37) 14.3 μg/m3 (55) 55.0
 
July 14, 2019, 10 a.m. 6.4 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.12 ppb (1) 44.0 μg/m3 (40) 14.8 μg/m3 (56) 56.0
 
July 14, 2019, 9 a.m. 7.7 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.13 ppb (1) 43.0 μg/m3 (39) 19.3 μg/m3 (66) 66.0
 
July 14, 2019, 8 a.m. 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.13 ppb (1) 42.0 μg/m3 (38) 12.3 μg/m3 (51) 51.0
 
July 14, 2019, 7 a.m. 7.7 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) 0.14 ppb (2) 48.0 μg/m3 (44) 13.3 μg/m3 (53) 53.0
 
July 14, 2019, 6 a.m. 9.4 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) 0.16 ppb (2) 44.0 μg/m3 (40) 14.8 μg/m3 (56) 56.0
 
July 14, 2019, 5 a.m. 8.7 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) 0.16 ppb (2) 59.0 μg/m3 (52) 20.2 μg/m3 (67) 67.0
 
July 14, 2019, 4 a.m. 6.7 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (35) 0.16 ppb (2) 57.0 μg/m3 (51) 10.9 μg/m3 (45) 51.0
 
July 14, 2019, 3 a.m. 8.4 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 52.0 ppb (40) 0.18 ppb (2) 88.0 μg/m3 (66) 13.3 μg/m3 (53) 66.0
 
July 14, 2019, 2 a.m. 6.5 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 65.0 ppb (50) 0.17 ppb (2) 56.0 μg/m3 (50) 14.3 μg/m3 (55) 55.0
 
July 14, 2019, 1 a.m. 4.6 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (57) 0.14 ppb (2) 58.0 μg/m3 (52) 12.3 μg/m3 (51) 57.0
 
July 14, 2019, midnight 4.1 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 77.0 ppb (60) 0.13 ppb (1) 61.0 μg/m3 (53) 10.1 μg/m3 (42) 60.0
 
July 13, 2019, 11 p.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 78.0 ppb (61) 0.13 ppb (1) 72.0 μg/m3 (58) 16.4 μg/m3 (59) 61.0