ID: 1916

AQSQID: 060658005

Site Name: Mira Loma - Van Buren

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

Updated: Jan. 25, 2021, 12:32 a.m.

Location: Rivside (Poinsetta Place), CA

Reporting: True, Located: True

Current AQI: 50.0

Rivside (Poinsetta Place) CA, US: 33.996387, -117.4925

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 24, 2021, 11 p.m. 5.3 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.14 ppb (2) 10.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Jan. 24, 2021, 10 p.m. 5.1 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.13 ppb (2) 9.7 μg/m3 (9) 12.0 μg/m3 (50) 50.0
 
Jan. 24, 2021, 9 p.m. 4.4 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.12 ppb (2) 8.3 μg/m3 (8) 9.4 μg/m3 (40) 40.0
 
Jan. 24, 2021, 8 p.m. 3.3 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.11 ppb (2) 5.3 μg/m3 (5) 9.1 μg/m3 (38) 38.0
 
Jan. 24, 2021, 7 p.m. 3.4 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.11 ppb (2) 7.3 μg/m3 (7) 9.6 μg/m3 (40) 40.0
 
Jan. 24, 2021, 6 p.m. 8.3 ppb (8) 3.4 ppb (4) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.16 ppb (3) 9.8 μg/m3 (10) 12.2 μg/m3 (52) 52.0
 
Jan. 24, 2021, 5 p.m. 9.1 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) 0.18 ppb (3) 16.0 μg/m3 (15) 13.2 μg/m3 (54) 54.0
 
Jan. 24, 2021, 4 p.m. 14.2 ppb (14) 4.4 ppb (5) N/A 10.0 ppb (10) N/A N/A 10.0 ppb (10) 0.26 ppb (4) 9.5 μg/m3 (9) 11.9 μg/m3 (50) 50.0
 
Jan. 24, 2021, 3 p.m. 15.9 ppb (15) 3.9 ppb (4) N/A 12.0 ppb (12) N/A N/A 5.0 ppb (5) 0.29 ppb (4) 10.0 μg/m3 (10) 11.8 μg/m3 (50) 50.0
 
Jan. 24, 2021, 2 p.m. 17.2 ppb (17) 3.9 ppb (4) N/A 13.0 ppb (13) N/A N/A 2.0 ppb (2) 0.28 ppb (4) 10.2 μg/m3 (10) 16.1 μg/m3 (60) 60.0
 
Jan. 24, 2021, 1 p.m. 15.5 ppb (15) 3.4 ppb (4) N/A 12.0 ppb (12) N/A N/A 1.0 ppb (1) 0.3 ppb (4) 10.2 μg/m3 (10) 12.7 μg/m3 (53) 53.0
 
Jan. 24, 2021, noon 12.8 ppb (13) 2.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 3.0 ppb (3) 0.3 ppb (4) 12.8 μg/m3 (12) 15.9 μg/m3 (59) 59.0
 
Jan. 24, 2021, 11 a.m. 8.3 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 9.0 ppb (9) 0.25 ppb (3) 15.5 μg/m3 (15) 16.1 μg/m3 (60) 60.0
 
Jan. 24, 2021, 10 a.m. 8.4 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 14.0 ppb (13) 0.21 ppb (3) 17.8 μg/m3 (17) 12.7 μg/m3 (53) 53.0
 
Jan. 24, 2021, 9 a.m. 10.3 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 16.0 ppb (15) 0.21 ppb (3) 9.0 μg/m3 (9) 11.5 μg/m3 (48) 48.0
 
Jan. 24, 2021, 8 a.m. 7.1 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.17 ppb (3) 9.5 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 24, 2021, 7 a.m. 7.7 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.19 ppb (3) 10.7 μg/m3 (10) 11.7 μg/m3 (49) 49.0
 
Jan. 24, 2021, 6 a.m. 8.4 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) 0.19 ppb (3) 9.8 μg/m3 (10) 11.2 μg/m3 (47) 47.0
 
Jan. 24, 2021, 5 a.m. 7.0 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.2 ppb (3) 8.8 μg/m3 (9) 11.7 μg/m3 (49) 49.0
 
Jan. 24, 2021, 4 a.m. 6.9 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 25.0 ppb (24) 0.18 ppb (3) 11.4 μg/m3 (11) 10.8 μg/m3 (46) 46.0
 
Jan. 24, 2021, 3 a.m. 6.3 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) 0.16 ppb (3) 10.3 μg/m3 (10) 8.2 μg/m3 (35) 35.0
 
Jan. 24, 2021, 2 a.m. 5.5 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.14 ppb (2) 7.3 μg/m3 (7) 9.6 μg/m3 (40) 40.0
 
Jan. 24, 2021, 1 a.m. 10.4 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.17 ppb (3) 3.8 μg/m3 (4) 11.3 μg/m3 (48) 48.0
 
Jan. 24, 2021, midnight 10.5 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) 0.16 ppb (3) 2.9 μg/m3 (3) 9.9 μg/m3 (42) 42.0
 
Jan. 23, 2021, 11 p.m. 10.2 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.13 ppb (2) 3.9 μg/m3 (4) 8.1 μg/m3 (34) 34.0
 
Jan. 23, 2021, 10 p.m. 4.6 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.11 ppb (2) 1.4 μg/m3 (2) 6.7 μg/m3 (28) 31.0
 
Jan. 23, 2021, 9 p.m. 5.3 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.11 ppb (2) 0.3 μg/m3 (1) 5.9 μg/m3 (25) 30.0
 
Jan. 23, 2021, 8 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.1 ppb (2) 3.9 μg/m3 (4) 5.9 μg/m3 (25) 33.0
 
Jan. 23, 2021, 7 p.m. 5.1 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.1 ppb (2) 8.8 μg/m3 (9) 6.2 μg/m3 (26) 30.0
 
Jan. 23, 2021, 6 p.m. 3.7 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.09 ppb (2) 9.7 μg/m3 (9) 4.7 μg/m3 (20) 31.0
 
Jan. 23, 2021, 5 p.m. 5.2 ppb (5) 1.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.1 ppb (2) 9.5 μg/m3 (9) 7.9 μg/m3 (33) 33.0
 
Jan. 23, 2021, 4 p.m. 10.9 ppb (11) 2.8 ppb (3) N/A 8.0 ppb (8) N/A N/A 19.0 ppb (18) 0.14 ppb (2) 9.8 μg/m3 (10) 8.6 μg/m3 (36) 36.0
 
Jan. 23, 2021, 3 p.m. 15.0 ppb (15) 2.6 ppb (3) N/A 12.0 ppb (12) N/A N/A 11.0 ppb (11) 0.17 ppb (3) 14.8 μg/m3 (14) 5.9 μg/m3 (25) 25.0
 
Jan. 23, 2021, 2 p.m. 13.7 ppb (13) 1.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 10.0 ppb (10) 0.16 ppb (3) 8.3 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2021, 1 p.m. 12.0 ppb (12) 0.7 ppb (1) N/A 11.0 ppb (11) N/A N/A 12.0 ppb (12) 0.18 ppb (3) 12.6 μg/m3 (12) 4.2 μg/m3 (18) 18.0
 
Jan. 23, 2021, noon 7.1 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.09 ppb (2) 14.3 μg/m3 (14) 5.5 μg/m3 (23) 23.0
 
Jan. 23, 2021, 11 a.m. 7.7 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) 0.12 ppb (2) 14.6 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
Jan. 23, 2021, 10 a.m. 9.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) 0.11 ppb (2) 17.4 μg/m3 (17) 8.1 μg/m3 (34) 34.0
 
Jan. 23, 2021, 9 a.m. 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) 0.12 ppb (2) 12.1 μg/m3 (12) 5.0 μg/m3 (21) 25.0
 
Jan. 23, 2021, 8 a.m. 4.3 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.1 ppb (2) 12.1 μg/m3 (12) 6.7 μg/m3 (28) 28.0
 
Jan. 23, 2021, 7 a.m. 4.1 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.09 ppb (2) 11.8 μg/m3 (11) 7.2 μg/m3 (31) 31.0
 
Jan. 23, 2021, 6 a.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.1 ppb (2) 16.0 μg/m3 (15) 10.6 μg/m3 (45) 45.0
 
Jan. 23, 2021, 5 a.m. 11.2 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) 0.2 ppb (3) 30.6 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Jan. 23, 2021, 4 a.m. 9.2 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) 0.15 ppb (2) 23.6 μg/m3 (22) 11.2 μg/m3 (47) 47.0
 
Jan. 23, 2021, 3 a.m. 5.5 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (31) 0.11 ppb (2) 20.2 μg/m3 (19) 10.2 μg/m3 (43) 43.0
 
Jan. 23, 2021, 2 a.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.1 ppb (2) 22.9 μg/m3 (22) 8.6 μg/m3 (36) 36.0
 
Jan. 23, 2021, 1 a.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.1 ppb (2) 23.2 μg/m3 (22) 8.9 μg/m3 (38) 38.0
 
Jan. 23, 2021, midnight 4.1 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.1 ppb (2) 35.3 μg/m3 (33) 7.9 μg/m3 (33) 38.0
 
Jan. 22, 2021, 11 p.m. 2.5 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.07 ppb (2) 39.4 μg/m3 (37) 8.6 μg/m3 (36) 40.0
 
Jan. 22, 2021, 10 p.m. 4.3 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.09 ppb (2) 32.8 μg/m3 (31) 11.5 μg/m3 (48) 48.0
 
Jan. 22, 2021, 9 p.m. 8.7 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 27.9 μg/m3 (26) 10.6 μg/m3 (45) 45.0
 
Jan. 22, 2021, 8 p.m. 9.0 ppb (9) 2.3 ppb (3) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) 0.13 ppb (2) 29.6 μg/m3 (28) 10.8 μg/m3 (46) 46.0
 
Jan. 22, 2021, 7 p.m. 14.3 ppb (14) 4.4 ppb (5) N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) 0.15 ppb (2) 27.5 μg/m3 (26) 13.4 μg/m3 (54) 54.0
 
Jan. 22, 2021, 6 p.m. 25.2 ppb (24) 10.2 ppb (10) N/A 15.0 ppb (15) N/A N/A 22.0 ppb (21) 0.23 ppb (3) 34.1 μg/m3 (32) 17.4 μg/m3 (63) 63.0
 
Jan. 22, 2021, 5 p.m. 36.5 ppb (35) 16.8 ppb (16) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (12) 0.3 ppb (4) 43.7 μg/m3 (41) 15.6 μg/m3 (59) 59.0
 
Jan. 22, 2021, 4 p.m. 81.4 ppb (81) 56.4 ppb (54) N/A 25.0 ppb (24) N/A N/A 4.0 ppb (4) 0.54 ppb (6) 58.7 μg/m3 (53) 19.4 μg/m3 (67) 81.0
 
Jan. 22, 2021, 3 p.m. 125.4 ppb (106) 105.0 ppb (102) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 0.9 ppb (11) 97.7 μg/m3 (73) 20.8 μg/m3 (70) 106.0
 
Jan. 22, 2021, 2 p.m. 83.2 ppb (83) 63.0 ppb (61) N/A 21.0 ppb (20) N/A N/A 0.0 ppb (0) 0.58 ppb (7) 33.4 μg/m3 (31) 18.6 μg/m3 (65) 83.0
 
Jan. 22, 2021, 1 p.m. 63.8 ppb (62) 45.4 ppb (43) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.59 ppb (7) 33.4 μg/m3 (31) 13.2 μg/m3 (54) 62.0
 
Jan. 22, 2021, noon 60.5 ppb (58) 42.1 ppb (40) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.56 ppb (7) 39.2 μg/m3 (37) 14.9 μg/m3 (57) 58.0
 
Jan. 22, 2021, 11 a.m. 46.9 ppb (45) 26.0 ppb (25) N/A 21.0 ppb (20) N/A N/A 0.0 ppb (0) 0.51 ppb (6) 37.5 μg/m3 (35) 13.7 μg/m3 (55) 55.0
 
Jan. 22, 2021, 10 a.m. 42.8 ppb (41) 21.9 ppb (21) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 28.9 μg/m3 (27) 14.2 μg/m3 (56) 56.0
 
Jan. 22, 2021, 9 a.m. 41.3 ppb (39) 20.3 ppb (20) N/A 21.0 ppb (20) N/A N/A 0.0 ppb (0) 0.53 ppb (6) 30.9 μg/m3 (29) 14.9 μg/m3 (57) 57.0
 
Jan. 22, 2021, 8 a.m. 44.9 ppb (43) 23.3 ppb (22) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) 0.63 ppb (7) 44.2 μg/m3 (41) 19.6 μg/m3 (67) 67.0
 
Jan. 22, 2021, 7 a.m. 46.3 ppb (44) 21.3 ppb (21) N/A 25.0 ppb (24) N/A N/A 0.0 ppb (0) 0.58 ppb (7) 47.6 μg/m3 (45) 18.1 μg/m3 (64) 64.0
 
Jan. 22, 2021, 6 a.m. 44.8 ppb (43) 15.7 ppb (15) N/A 29.0 ppb (28) N/A N/A 0.0 ppb (0) 0.46 ppb (6) 40.9 μg/m3 (38) 17.9 μg/m3 (64) 64.0
 
Jan. 22, 2021, 5 a.m. 47.8 ppb (46) 17.4 ppb (17) N/A 31.0 ppb (30) N/A N/A 1.0 ppb (1) 0.45 ppb (6) 43.2 μg/m3 (40) 19.8 μg/m3 (68) 68.0
 
Jan. 22, 2021, 4 a.m. 32.0 ppb (31) 5.2 ppb (5) N/A 27.0 ppb (26) N/A N/A 6.0 ppb (6) 0.33 ppb (4) 53.3 μg/m3 (50) 13.7 μg/m3 (55) 55.0
 
Jan. 22, 2021, 3 a.m. 16.2 ppb (16) 1.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 24.0 ppb (23) 0.25 ppb (3) 26.5 μg/m3 (25) 11.2 μg/m3 (47) 47.0
 
Jan. 22, 2021, 2 a.m. 11.4 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 31.0 ppb (29) 0.17 ppb (3) 34.1 μg/m3 (32) 8.1 μg/m3 (34) 34.0
 
Jan. 22, 2021, 1 a.m. 8.4 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.14 ppb (2) 38.7 μg/m3 (36) 7.4 μg/m3 (31) 36.0
 
Jan. 22, 2021, midnight 6.3 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) 0.11 ppb (2) 28.9 μg/m3 (27) 7.4 μg/m3 (31) 36.0
 
Jan. 21, 2021, 11 p.m. 4.9 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.09 ppb (2) 28.6 μg/m3 (27) 8.9 μg/m3 (38) 38.0
 
Jan. 21, 2021, 10 p.m. 5.0 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) 0.1 ppb (2) 24.7 μg/m3 (23) 8.4 μg/m3 (36) 41.0
 
Jan. 21, 2021, 9 p.m. 5.7 ppb (6) 1.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.11 ppb (2) 20.2 μg/m3 (19) 8.2 μg/m3 (35) 39.0
 
Jan. 21, 2021, 8 p.m. 8.6 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) 0.1 ppb (2) 26.4 μg/m3 (25) 6.9 μg/m3 (29) 33.0
 
Jan. 21, 2021, 7 p.m. 12.0 ppb (12) 4.3 ppb (5) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.11 ppb (2) 35.0 μg/m3 (33) 9.4 μg/m3 (40) 40.0
 
Jan. 21, 2021, 6 p.m. 30.6 ppb (29) 13.5 ppb (13) N/A 17.0 ppb (17) N/A N/A 19.0 ppb (18) 0.23 ppb (3) 42.2 μg/m3 (40) 12.2 μg/m3 (52) 52.0
 
Jan. 21, 2021, 5 p.m. 53.4 ppb (51) 30.1 ppb (29) N/A 23.0 ppb (22) N/A N/A 10.0 ppb (10) 0.32 ppb (4) 45.1 μg/m3 (42) 10.8 μg/m3 (46) 51.0
 
Jan. 21, 2021, 4 p.m. 81.5 ppb (81) 56.0 ppb (54) N/A 26.0 ppb (25) N/A N/A 4.0 ppb (4) 0.51 ppb (6) 64.0 μg/m3 (56) 17.1 μg/m3 (62) 81.0
 
Jan. 21, 2021, 3 p.m. 108.1 ppb (103) 84.6 ppb (84) N/A 24.0 ppb (23) N/A N/A 1.0 ppb (1) 0.82 ppb (10) 76.2 μg/m3 (62) 14.2 μg/m3 (56) 103.0
 
Jan. 21, 2021, 2 p.m. 68.7 ppb (67) 47.5 ppb (45) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 0.61 ppb (7) 57.3 μg/m3 (53) 13.2 μg/m3 (54) 67.0
 
Jan. 21, 2021, 1 p.m. 53.3 ppb (51) 30.8 ppb (30) N/A 23.0 ppb (22) N/A N/A 0.0 ppb (0) 0.42 ppb (5) 32.4 μg/m3 (30) 11.2 μg/m3 (47) 51.0
 
Jan. 21, 2021, noon 42.3 ppb (40) 16.1 ppb (16) N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) 0.32 ppb (4) 26.5 μg/m3 (25) 12.2 μg/m3 (52) 52.0
 
Jan. 21, 2021, 11 a.m. 55.4 ppb (53) 27.9 ppb (27) N/A 28.0 ppb (27) N/A N/A 0.0 ppb (0) 0.37 ppb (5) 38.7 μg/m3 (36) 15.1 μg/m3 (58) 58.0
 
Jan. 21, 2021, 10 a.m. 53.3 ppb (51) 28.9 ppb (28) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.39 ppb (5) 37.0 μg/m3 (35) 10.6 μg/m3 (45) 51.0
 
Jan. 21, 2021, 9 a.m. 45.4 ppb (43) 19.3 ppb (19) N/A 26.0 ppb (25) N/A N/A 0.0 ppb (0) 0.33 ppb (4) 35.3 μg/m3 (33) 10.8 μg/m3 (46) 46.0
 
Jan. 21, 2021, 8 a.m. 43.6 ppb (42) 14.6 ppb (14) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) 0.36 ppb (5) 31.9 μg/m3 (30) 10.3 μg/m3 (43) 43.0
 
Jan. 21, 2021, 7 a.m. 39.5 ppb (38) 13.5 ppb (13) N/A 26.0 ppb (25) N/A N/A 4.0 ppb (4) 0.33 ppb (4) 30.7 μg/m3 (29) 9.9 μg/m3 (42) 42.0
 
Jan. 21, 2021, 6 a.m. 6.4 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) 0.09 ppb (2) 16.3 μg/m3 (16) 5.5 μg/m3 (23) 25.0
 
Jan. 21, 2021, 5 a.m. 4.9 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.09 ppb (2) 11.4 μg/m3 (11) 6.5 μg/m3 (28) 28.0
 
Jan. 21, 2021, 4 a.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.06 ppb (2) 10.2 μg/m3 (10) 8.1 μg/m3 (34) 34.0
 
Jan. 21, 2021, 3 a.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) 0.06 ppb (2) 14.9 μg/m3 (14) 6.9 μg/m3 (29) 31.0
 
Jan. 21, 2021, 2 a.m. 2.7 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.07 ppb (2) 16.5 μg/m3 (16) 8.1 μg/m3 (34) 34.0
 
Jan. 21, 2021, 1 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.07 ppb (2) 22.4 μg/m3 (21) 8.6 μg/m3 (36) 36.0
 
Jan. 21, 2021, midnight 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.06 ppb (2) 31.3 μg/m3 (29) 8.1 μg/m3 (34) 34.0
 
Jan. 20, 2021, 11 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.07 ppb (2) 32.1 μg/m3 (30) 7.4 μg/m3 (31) 34.0
 
Jan. 20, 2021, 10 p.m. 3.1 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.06 ppb (2) 55.3 μg/m3 (52) 8.4 μg/m3 (36) 52.0
 
Jan. 20, 2021, 9 p.m. 2.5 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 49.2 μg/m3 (46) 9.6 μg/m3 (40) 46.0
 
Jan. 20, 2021, 8 p.m. 2.5 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 50.4 μg/m3 (47) 7.6 μg/m3 (32) 47.0
 
Jan. 20, 2021, 7 p.m. 2.5 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.06 ppb (2) 31.6 μg/m3 (30) 4.4 μg/m3 (19) 34.0
 
Jan. 20, 2021, 6 p.m. 2.5 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.06 ppb (2) 25.3 μg/m3 (24) 5.2 μg/m3 (22) 34.0
 
Jan. 20, 2021, 5 p.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.06 ppb (2) 17.0 μg/m3 (16) 6.7 μg/m3 (28) 33.0
 
Jan. 20, 2021, 4 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.06 ppb (2) 17.2 μg/m3 (16) 5.7 μg/m3 (24) 32.0
 
Jan. 20, 2021, 3 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.06 ppb (2) 15.3 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
Jan. 20, 2021, 2 p.m. 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.06 ppb (2) 17.8 μg/m3 (17) 4.7 μg/m3 (20) 32.0
 
Jan. 20, 2021, 1 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.06 ppb (2) 12.1 μg/m3 (12) 3.0 μg/m3 (13) 33.0
 
Jan. 20, 2021, noon 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.06 ppb (2) 12.8 μg/m3 (12) 3.2 μg/m3 (14) 33.0
 
Jan. 20, 2021, 11 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) 0.06 ppb (2) 17.0 μg/m3 (16) 2.5 μg/m3 (11) 34.0
 
Jan. 20, 2021, 10 a.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 16.5 μg/m3 (16) 4.2 μg/m3 (18) 35.0
 
Jan. 20, 2021, 9 a.m. 0.7 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.05 ppb (2) 22.7 μg/m3 (22) 6.7 μg/m3 (28) 35.0
 
Jan. 20, 2021, 8 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 24.6 μg/m3 (23) 5.7 μg/m3 (24) 35.0
 
Jan. 20, 2021, 7 a.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 26.0 μg/m3 (25) 5.2 μg/m3 (22) 35.0
 
Jan. 20, 2021, 6 a.m. 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 30.9 μg/m3 (29) 6.2 μg/m3 (26) 35.0
 
Jan. 20, 2021, 5 a.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 30.4 μg/m3 (29) 7.2 μg/m3 (31) 35.0
 
Jan. 20, 2021, 4 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 27.0 μg/m3 (25) 6.9 μg/m3 (29) 35.0
 
Jan. 20, 2021, 3 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 47.2 μg/m3 (44) 6.7 μg/m3 (28) 44.0
 
Jan. 20, 2021, 2 a.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.07 ppb (2) 50.4 μg/m3 (47) 8.4 μg/m3 (36) 47.0
 
Jan. 20, 2021, 1 a.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.07 ppb (2) 75.2 μg/m3 (61) 10.1 μg/m3 (43) 61.0
 
Jan. 20, 2021, midnight 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.08 ppb (2) 64.7 μg/m3 (56) 8.2 μg/m3 (35) 56.0
 
Jan. 19, 2021, 11 p.m. 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.08 ppb (2) 38.2 μg/m3 (36) 5.7 μg/m3 (24) 36.0
 
Jan. 19, 2021, 10 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.07 ppb (2) 40.9 μg/m3 (38) 6.1 μg/m3 (26) 38.0
 
Jan. 19, 2021, 9 p.m. 2.0 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.07 ppb (2) 54.8 μg/m3 (51) 7.9 μg/m3 (33) 51.0
 
Jan. 19, 2021, 8 p.m. 2.3 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) 0.07 ppb (2) 107.8 μg/m3 (78) 9.1 μg/m3 (38) 78.0
 
Jan. 19, 2021, 7 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) 0.06 ppb (2) 247.6 μg/m3 (147) 21.1 μg/m3 (70) 147.0
 
Jan. 19, 2021, 6 p.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) 0.06 ppb (2) 196.4 μg/m3 (122) 12.5 μg/m3 (52) 122.0
 
Jan. 19, 2021, 5 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) 0.07 ppb (2) 186.9 μg/m3 (117) 11.5 μg/m3 (48) 117.0
 
Jan. 19, 2021, 4 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) 0.06 ppb (2) 182.1 μg/m3 (115) 9.9 μg/m3 (42) 115.0
 
Jan. 19, 2021, 3 p.m. 2.6 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.06 ppb (2) 151.5 μg/m3 (99) 9.6 μg/m3 (40) 99.0
 
Jan. 19, 2021, 2 p.m. 3.2 ppb (4) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.06 ppb (2) 82.0 μg/m3 (65) 10.1 μg/m3 (43) 65.0
 
Jan. 19, 2021, 1 p.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.06 ppb (2) 91.5 μg/m3 (70) 11.7 μg/m3 (49) 70.0
 
Jan. 19, 2021, noon 5.6 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.09 ppb (2) 90.0 μg/m3 (69) 22.0 μg/m3 (72) 72.0
 
Jan. 19, 2021, 11 a.m. 16.0 ppb (16) 1.4 ppb (2) N/A 15.0 ppb (15) N/A N/A 13.0 ppb (13) 0.27 ppb (4) 47.1 μg/m3 (44) 32.4 μg/m3 (94) 94.0
 
Jan. 19, 2021, 10 a.m. 16.1 ppb (16) 1.7 ppb (2) N/A 14.0 ppb (14) N/A N/A 13.0 ppb (13) 0.3 ppb (4) 44.6 μg/m3 (42) 35.0 μg/m3 (100) 100.0
 
Jan. 19, 2021, 9 a.m. 21.0 ppb (20) 3.0 ppb (3) N/A 18.0 ppb (17) N/A N/A 8.0 ppb (8) 0.37 ppb (5) 52.9 μg/m3 (49) 33.7 μg/m3 (97) 97.0
 
Jan. 19, 2021, 8 a.m. 20.2 ppb (20) 1.8 ppb (2) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (9) 0.37 ppb (5) 56.8 μg/m3 (52) 31.5 μg/m3 (92) 92.0
 
Jan. 19, 2021, 7 a.m. 26.5 ppb (25) 1.4 ppb (2) N/A 25.0 ppb (24) N/A N/A 13.0 ppb (13) 0.42 ppb (5) 57.7 μg/m3 (53) 27.1 μg/m3 (83) 83.0
 
Jan. 19, 2021, 6 a.m. 40.7 ppb (39) 4.2 ppb (4) N/A 37.0 ppb (35) N/A N/A 7.0 ppb (7) 0.53 ppb (6) 69.3 μg/m3 (59) 23.3 μg/m3 (75) 75.0
 
Jan. 19, 2021, 5 a.m. 40.1 ppb (38) 6.4 ppb (7) N/A 34.0 ppb (33) N/A N/A 5.0 ppb (5) 0.55 ppb (7) 78.4 μg/m3 (63) 28.5 μg/m3 (86) 86.0
 
Jan. 19, 2021, 4 a.m. 25.1 ppb (24) 1.6 ppb (2) N/A 24.0 ppb (23) N/A N/A 21.0 ppb (20) 0.52 ppb (6) 56.5 μg/m3 (52) 19.6 μg/m3 (67) 67.0
 
Jan. 19, 2021, 3 a.m. 21.6 ppb (21) 1.2 ppb (2) N/A 20.0 ppb (19) N/A N/A 30.0 ppb (28) 0.34 ppb (4) 52.6 μg/m3 (49) 11.2 μg/m3 (47) 49.0
 
Jan. 19, 2021, 2 a.m. 14.5 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (14) N/A N/A 29.0 ppb (27) 0.2 ppb (3) 24.8 μg/m3 (23) 5.7 μg/m3 (24) 27.0
 
Jan. 19, 2021, 1 a.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.07 ppb (2) 18.2 μg/m3 (17) 5.7 μg/m3 (24) 38.0
 
Jan. 19, 2021, midnight 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.07 ppb (2) 27.0 μg/m3 (25) 6.5 μg/m3 (28) 38.0
 
Jan. 18, 2021, 11 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.07 ppb (2) 30.4 μg/m3 (29) 7.7 μg/m3 (33) 37.0
 
Jan. 18, 2021, 10 p.m. 2.6 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.07 ppb (2) 25.1 μg/m3 (24) 8.7 μg/m3 (37) 38.0
 
Jan. 18, 2021, 9 p.m. 2.1 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.07 ppb (2) 27.0 μg/m3 (25) 4.3 μg/m3 (18) 38.0
 
Jan. 18, 2021, 8 p.m. 2.5 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) 0.07 ppb (2) 25.0 μg/m3 (24) 3.4 μg/m3 (15) 36.0
 
Jan. 18, 2021, 7 p.m. 2.3 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 31.6 μg/m3 (30) 4.2 μg/m3 (18) 35.0
 
Jan. 18, 2021, 6 p.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.06 ppb (2) 37.7 μg/m3 (35) 4.2 μg/m3 (18) 35.0
 
Jan. 18, 2021, 5 p.m. 2.4 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) 0.05 ppb (2) 59.7 μg/m3 (54) 7.6 μg/m3 (32) 54.0
 
Jan. 18, 2021, 4 p.m. 23.8 ppb (23) 14.2 ppb (14) N/A 10.0 ppb (10) N/A N/A 25.0 ppb (24) 0.17 ppb (3) 79.7 μg/m3 (64) 10.3 μg/m3 (43) 64.0
 
Jan. 18, 2021, 3 p.m. 80.2 ppb (79) 53.7 ppb (51) N/A 27.0 ppb (26) N/A N/A 1.0 ppb (1) 0.48 ppb (6) 89.2 μg/m3 (68) 11.4 μg/m3 (48) 79.0
 
Jan. 18, 2021, 2 p.m. 84.1 ppb (84) 60.2 ppb (58) N/A 24.0 ppb (23) N/A N/A 0.0 ppb (0) 0.63 ppb (7) 57.7 μg/m3 (53) 11.9 μg/m3 (50) 84.0
 
Jan. 18, 2021, 1 p.m. 82.4 ppb (82) 63.0 ppb (61) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 0.87 ppb (11) 51.4 μg/m3 (48) 12.4 μg/m3 (52) 82.0
 
Jan. 18, 2021, noon 76.0 ppb (75) 54.1 ppb (52) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) 0.6 ppb (7) 53.3 μg/m3 (50) 13.4 μg/m3 (54) 75.0
 
Jan. 18, 2021, 11 a.m. 67.9 ppb (66) 46.1 ppb (44) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) 0.58 ppb (7) 53.8 μg/m3 (50) 13.7 μg/m3 (55) 66.0
 
Jan. 18, 2021, 10 a.m. 65.3 ppb (64) 42.4 ppb (40) N/A 23.0 ppb (22) N/A N/A 1.0 ppb (1) 0.59 ppb (7) 55.5 μg/m3 (52) 16.4 μg/m3 (61) 64.0
 
Jan. 18, 2021, 9 a.m. 62.2 ppb (60) 36.8 ppb (35) N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) 0.58 ppb (7) 57.4 μg/m3 (53) 16.1 μg/m3 (60) 60.0
 
Jan. 18, 2021, 8 a.m. 58.0 ppb (56) 31.5 ppb (30) N/A 27.0 ppb (26) N/A N/A 1.0 ppb (1) 0.59 ppb (7) 47.8 μg/m3 (45) 17.6 μg/m3 (63) 63.0
 
Jan. 18, 2021, 7 a.m. 54.1 ppb (52) 26.8 ppb (26) N/A 27.0 ppb (26) N/A N/A 0.0 ppb (0) 0.67 ppb (8) 60.4 μg/m3 (54) 16.6 μg/m3 (61) 61.0
 
Jan. 18, 2021, 6 a.m. 58.9 ppb (57) 31.5 ppb (30) N/A 28.0 ppb (27) N/A N/A 1.0 ppb (1) 0.7 ppb (8) 58.7 μg/m3 (53) 18.6 μg/m3 (65) 65.0
 
Jan. 18, 2021, 5 a.m. 60.3 ppb (58) 31.1 ppb (30) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) 0.79 ppb (10) 80.7 μg/m3 (64) 22.0 μg/m3 (72) 72.0
 
Jan. 18, 2021, 4 a.m. 55.7 ppb (53) 24.2 ppb (23) N/A 32.0 ppb (31) N/A N/A 2.0 ppb (2) 0.65 ppb (8) 53.8 μg/m3 (50) 11.7 μg/m3 (49) 53.0
 
Jan. 18, 2021, 3 a.m. 38.9 ppb (37) 11.1 ppb (11) N/A 28.0 ppb (27) N/A N/A 10.0 ppb (10) 0.46 ppb (6) 44.4 μg/m3 (42) 8.4 μg/m3 (36) 42.0
 
Jan. 18, 2021, 2 a.m. 8.5 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 33.0 ppb (31) 0.18 ppb (3) 33.6 μg/m3 (32) 3.2 μg/m3 (14) 32.0
 
Jan. 18, 2021, 1 a.m. 4.8 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) 0.11 ppb (2) 32.3 μg/m3 (30) 4.7 μg/m3 (20) 37.0
 
Jan. 18, 2021, midnight 4.8 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.11 ppb (2) 28.7 μg/m3 (27) 5.8 μg/m3 (25) 39.0