AQSQID: 060719004

Site Name: San Bernadino - 4th Street

Location: San Bernardino (E 4th St), CA

Reporting: True, Located: True

Current AQI: 32.0

San Bernardino (E 4th St) CA, US: 34.106678, -117.274063

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 27, 2020, 10 p.m. 5.7 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) N/A 32.0
 
Jan. 27, 2020, 9 p.m. 5.2 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) N/A 8.0 μg/m3 (7) N/A 32.0
 
Jan. 27, 2020, 8 p.m. 18.7 ppb (17) 5.7 ppb (5) N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) 0.13 ppb (1) 32.0 μg/m3 (29) N/A 29.0
 
Jan. 27, 2020, 7 p.m. 19.5 ppb (18) 6.2 ppb (6) N/A 13.0 ppb (12) N/A N/A 29.0 ppb (22) 0.17 ppb (2) 34.0 μg/m3 (31) N/A 31.0
 
Jan. 27, 2020, 6 p.m. 44.2 ppb (41) 19.9 ppb (18) N/A 24.0 ppb (22) N/A N/A 17.0 ppb (13) 0.43 ppb (5) 62.0 μg/m3 (54) N/A 54.0
 
Jan. 27, 2020, 5 p.m. 44.2 ppb (41) 21.6 ppb (20) N/A 23.0 ppb (21) N/A N/A 12.0 ppb (9) 0.48 ppb (5) 63.0 μg/m3 (54) N/A 54.0
 
Jan. 27, 2020, 4 p.m. 44.7 ppb (41) 24.4 ppb (23) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (5) 0.41 ppb (5) 67.0 μg/m3 (56) N/A 56.0
 
Jan. 27, 2020, 3 p.m. 54.1 ppb (50) 33.8 ppb (31) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 0.52 ppb (6) 72.0 μg/m3 (58) N/A 58.0
 
Jan. 27, 2020, 2 p.m. 33.3 ppb (31) 12.0 ppb (11) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.37 ppb (4) 59.0 μg/m3 (52) N/A 52.0
 
Jan. 27, 2020, 1 p.m. 27.3 ppb (25) 6.1 ppb (6) N/A 21.0 ppb (19) N/A N/A 3.0 ppb (2) 0.35 ppb (4) 62.0 μg/m3 (54) N/A 54.0
 
Jan. 27, 2020, noon 24.3 ppb (23) 4.3 ppb (4) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) 0.45 ppb (5) 67.0 μg/m3 (56) N/A 56.0
 
Jan. 27, 2020, 11 a.m. 21.3 ppb (20) 1.4 ppb (1) N/A 20.0 ppb (19) N/A N/A 7.0 ppb (5) 0.37 ppb (4) 64.0 μg/m3 (54) N/A 54.0
 
Jan. 27, 2020, 10 a.m. 18.3 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A N/A 12.0 ppb (9) 0.42 ppb (5) 61.0 μg/m3 (53) N/A 53.0
 
Jan. 27, 2020, 9 a.m. 16.8 ppb (16) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 20.0 ppb (15) 0.31 ppb (3) 63.0 μg/m3 (54) N/A 54.0
 
Jan. 27, 2020, 8 a.m. 21.0 ppb (19) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 16.0 ppb (12) 0.35 ppb (4) 59.0 μg/m3 (52) N/A 52.0
 
Jan. 27, 2020, 7 a.m. 28.6 ppb (26) 1.6 ppb (1) N/A 27.0 ppb (25) N/A N/A 8.0 ppb (6) 0.31 ppb (3) 55.0 μg/m3 (50) N/A 50.0
 
Jan. 27, 2020, 6 a.m. 33.5 ppb (31) 3.2 ppb (3) N/A 30.0 ppb (28) N/A N/A 7.0 ppb (5) 0.37 ppb (4) 62.0 μg/m3 (54) N/A 54.0
 
Jan. 27, 2020, 5 a.m. 19.7 ppb (18) 0.5 ppb (0) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (16) 0.26 ppb (3) 53.0 μg/m3 (48) N/A 48.0
 
Jan. 27, 2020, 4 a.m. 15.1 ppb (14) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 27.0 ppb (21) 0.25 ppb (3) 55.0 μg/m3 (50) N/A 50.0
 
Jan. 27, 2020, 3 a.m. 15.3 ppb (14) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 29.0 ppb (22) 0.25 ppb (3) 45.0 μg/m3 (41) N/A 41.0
 
Jan. 27, 2020, 2 a.m. 13.3 ppb (12) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) 0.19 ppb (2) 47.0 μg/m3 (43) N/A 43.0
 
Jan. 27, 2020, 1 a.m. 13.8 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 34.0 ppb (26) 0.2 ppb (2) 44.0 μg/m3 (40) N/A 40.0
 
Jan. 27, 2020, midnight 14.3 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 34.0 ppb (26) 0.23 ppb (3) 45.0 μg/m3 (41) N/A 41.0
 
Jan. 26, 2020, 11 p.m. 15.3 ppb (14) 2.4 ppb (2) N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) 0.27 ppb (3) 60.0 μg/m3 (52) N/A 52.0
 
Jan. 26, 2020, 10 p.m. 19.3 ppb (18) 4.7 ppb (4) N/A 15.0 ppb (14) N/A N/A 27.0 ppb (21) 0.31 ppb (3) 59.0 μg/m3 (52) N/A 52.0
 
Jan. 26, 2020, 9 p.m. 25.0 ppb (23) 8.1 ppb (8) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) 0.36 ppb (4) 51.0 μg/m3 (46) N/A 46.0
 
Jan. 26, 2020, 8 p.m. 38.3 ppb (35) 15.4 ppb (14) N/A 23.0 ppb (21) N/A N/A 18.0 ppb (14) 0.4 ppb (4) 54.0 μg/m3 (49) N/A 49.0
 
Jan. 26, 2020, 7 p.m. 37.4 ppb (35) 15.4 ppb (14) N/A 22.0 ppb (20) N/A N/A 14.0 ppb (11) 0.39 ppb (4) 48.0 μg/m3 (44) N/A 44.0
 
Jan. 26, 2020, 6 p.m. 44.3 ppb (41) 22.5 ppb (21) N/A 22.0 ppb (20) N/A N/A 9.0 ppb (7) 0.47 ppb (5) 46.0 μg/m3 (42) N/A 42.0
 
Jan. 26, 2020, 5 p.m. 56.2 ppb (52) 32.2 ppb (30) N/A 24.0 ppb (22) N/A N/A 4.0 ppb (3) 0.55 ppb (6) 45.0 μg/m3 (41) N/A 52.0
 
Jan. 26, 2020, 4 p.m. 52.4 ppb (49) 30.0 ppb (28) N/A 22.0 ppb (20) N/A N/A 1.0 ppb (1) 0.56 ppb (6) 23.0 μg/m3 (21) N/A 49.0
 
Jan. 26, 2020, 3 p.m. 54.6 ppb (51) 36.2 ppb (34) N/A 18.0 ppb (17) N/A N/A 0.0 ppb (0) 0.71 ppb (8) 47.0 μg/m3 (43) N/A 51.0
 
Jan. 26, 2020, 2 p.m. 63.1 ppb (60) 47.2 ppb (44) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.91 ppb (10) 89.0 μg/m3 (67) N/A 67.0
 
Jan. 26, 2020, 1 p.m. 59.5 ppb (56) 44.8 ppb (41) N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) 1.03 ppb (11) 48.0 μg/m3 (44) N/A 56.0
 
Jan. 26, 2020, noon 59.0 ppb (55) 42.9 ppb (40) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.97 ppb (11) 50.0 μg/m3 (45) N/A 55.0
 
Jan. 26, 2020, 11 a.m. 48.2 ppb (45) 30.5 ppb (28) N/A 18.0 ppb (17) N/A N/A 0.0 ppb (0) 0.75 ppb (8) 43.0 μg/m3 (39) N/A 45.0
 
Jan. 26, 2020, 10 a.m. 52.5 ppb (49) 33.4 ppb (31) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.71 ppb (8) 47.0 μg/m3 (43) N/A 49.0
 
Jan. 26, 2020, 9 a.m. 52.4 ppb (49) 31.3 ppb (29) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.78 ppb (9) 59.0 μg/m3 (52) N/A 52.0
 
Jan. 26, 2020, 8 a.m. 41.6 ppb (39) 19.9 ppb (18) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.51 ppb (6) 36.0 μg/m3 (33) N/A 39.0
 
Jan. 26, 2020, 7 a.m. 35.2 ppb (33) 11.1 ppb (10) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.34 ppb (4) 37.0 μg/m3 (34) N/A 34.0
 
Jan. 26, 2020, 6 a.m. 38.1 ppb (35) 12.0 ppb (11) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.48 ppb (5) 47.0 μg/m3 (43) N/A 43.0
 
Jan. 26, 2020, 5 a.m. 38.7 ppb (36) 9.0 ppb (8) N/A 30.0 ppb (28) N/A N/A 2.0 ppb (2) 0.5 ppb (6) 51.0 μg/m3 (46) N/A 46.0
 
Jan. 26, 2020, 4 a.m. 38.5 ppb (36) 5.1 ppb (5) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) 0.67 ppb (7) 59.0 μg/m3 (52) N/A 52.0
 
Jan. 26, 2020, 3 a.m. 34.3 ppb (32) 2.6 ppb (2) N/A 32.0 ppb (30) N/A N/A 9.0 ppb (7) 0.66 ppb (7) 56.0 μg/m3 (50) N/A 50.0
 
Jan. 26, 2020, 2 a.m. 27.7 ppb (26) 0.9 ppb (1) N/A 27.0 ppb (25) N/A N/A 18.0 ppb (14) 0.55 ppb (6) 51.0 μg/m3 (46) N/A 46.0
 
Jan. 26, 2020, 1 a.m. 29.4 ppb (27) 1.4 ppb (1) N/A 28.0 ppb (26) N/A N/A 20.0 ppb (15) 0.39 ppb (4) 52.0 μg/m3 (47) N/A 47.0
 
Jan. 26, 2020, midnight 18.5 ppb (17) 1.2 ppb (1) N/A 17.0 ppb (16) N/A N/A 32.0 ppb (25) 0.14 ppb (2) 30.0 μg/m3 (27) N/A 27.0
 
Jan. 25, 2020, 11 p.m. 9.0 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) 0.01 ppb (0) 12.0 μg/m3 (11) N/A 32.0
 
Jan. 25, 2020, 10 p.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) N/A 34.0
 
Jan. 25, 2020, 9 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
Jan. 25, 2020, 8 p.m. 6.1 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.01 ppb (0) 7.0 μg/m3 (6) N/A 32.0
 
Jan. 25, 2020, 7 p.m. 6.7 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.03 ppb (0) 12.0 μg/m3 (11) N/A 29.0
 
Jan. 25, 2020, 6 p.m. 12.8 ppb (12) 4.0 ppb (4) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) 0.08 ppb (1) 20.0 μg/m3 (18) N/A 24.0
 
Jan. 25, 2020, 5 p.m. 21.6 ppb (20) 7.8 ppb (7) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) 0.23 ppb (3) 30.0 μg/m3 (27) N/A 27.0
 
Jan. 25, 2020, 4 p.m. 41.3 ppb (38) 19.6 ppb (18) N/A 22.0 ppb (20) N/A N/A 8.0 ppb (6) 0.44 ppb (5) 32.0 μg/m3 (29) N/A 38.0
 
Jan. 25, 2020, 3 p.m. 49.1 ppb (45) 28.8 ppb (27) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 0.54 ppb (6) 24.0 μg/m3 (22) N/A 45.0
 
Jan. 25, 2020, 2 p.m. 36.7 ppb (34) 15.6 ppb (14) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.37 ppb (4) 30.0 μg/m3 (27) N/A 34.0
 
Jan. 25, 2020, 1 p.m. 36.0 ppb (33) 16.4 ppb (15) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.45 ppb (5) 19.0 μg/m3 (17) N/A 33.0
 
Jan. 25, 2020, noon 52.1 ppb (48) 32.8 ppb (30) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.66 ppb (7) 30.0 μg/m3 (27) N/A 48.0
 
Jan. 25, 2020, 11 a.m. 61.4 ppb (58) 41.2 ppb (38) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.84 ppb (9) 32.0 μg/m3 (29) N/A 58.0
 
Jan. 25, 2020, 10 a.m. 66.8 ppb (64) 45.8 ppb (42) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.95 ppb (11) 39.0 μg/m3 (35) N/A 64.0
 
Jan. 25, 2020, 9 a.m. 66.1 ppb (63) 43.5 ppb (40) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.91 ppb (10) 38.0 μg/m3 (35) N/A 63.0
 
Jan. 25, 2020, 8 a.m. 62.2 ppb (59) 39.0 ppb (36) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.83 ppb (9) 43.0 μg/m3 (39) N/A 59.0
 
Jan. 25, 2020, 7 a.m. 57.3 ppb (54) 33.3 ppb (31) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.75 ppb (8) 51.0 μg/m3 (46) N/A 54.0
 
Jan. 25, 2020, 6 a.m. 63.6 ppb (60) 37.2 ppb (34) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.79 ppb (9) 60.0 μg/m3 (52) N/A 60.0
 
Jan. 25, 2020, 5 a.m. 49.4 ppb (46) 21.1 ppb (20) N/A 28.0 ppb (26) N/A N/A 0.0 ppb (0) 0.53 ppb (6) 59.0 μg/m3 (52) N/A 52.0
 
Jan. 25, 2020, 4 a.m. 46.8 ppb (43) 15.6 ppb (14) N/A 31.0 ppb (29) N/A N/A 0.0 ppb (0) 0.43 ppb (5) 72.0 μg/m3 (58) N/A 58.0
 
Jan. 25, 2020, 3 a.m. 57.7 ppb (54) 21.7 ppb (20) N/A 36.0 ppb (33) N/A N/A 0.0 ppb (0) 0.62 ppb (7) 68.0 μg/m3 (56) N/A 56.0
 
Jan. 25, 2020, 2 a.m. 59.3 ppb (56) 15.0 ppb (14) N/A 44.0 ppb (41) N/A N/A 1.0 ppb (1) 0.71 ppb (8) 62.0 μg/m3 (54) N/A 56.0
 
Jan. 25, 2020, 1 a.m. 37.5 ppb (35) 1.8 ppb (2) N/A 36.0 ppb (33) N/A N/A 14.0 ppb (11) 0.47 ppb (5) 42.0 μg/m3 (38) N/A 38.0
 
Jan. 25, 2020, midnight 23.8 ppb (22) 1.8 ppb (2) N/A 22.0 ppb (20) N/A N/A 30.0 ppb (23) 0.3 ppb (3) 32.0 μg/m3 (29) N/A 29.0
 
Jan. 24, 2020, 11 p.m. 13.6 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A N/A 41.0 ppb (32) 0.07 ppb (1) 19.0 μg/m3 (17) N/A 32.0
 
Jan. 24, 2020, 10 p.m. 14.1 ppb (13) 2.8 ppb (3) N/A 11.0 ppb (10) N/A N/A 42.0 ppb (32) 0.06 ppb (1) 20.0 μg/m3 (18) N/A 32.0
 
Jan. 24, 2020, 9 p.m. 23.4 ppb (22) 6.5 ppb (6) N/A 17.0 ppb (16) N/A N/A 34.0 ppb (26) 0.1 ppb (1) 28.0 μg/m3 (25) N/A 26.0
 
Jan. 24, 2020, 8 p.m. 25.7 ppb (24) 9.2 ppb (9) N/A 17.0 ppb (16) N/A N/A 31.0 ppb (24) 0.1 ppb (1) 15.0 μg/m3 (14) N/A 24.0
 
Jan. 24, 2020, 7 p.m. 23.4 ppb (22) 8.3 ppb (8) N/A 15.0 ppb (14) N/A N/A 30.0 ppb (23) 0.1 ppb (1) 11.0 μg/m3 (10) N/A 23.0
 
Jan. 24, 2020, 6 p.m. 42.0 ppb (39) 18.2 ppb (17) N/A 24.0 ppb (22) N/A N/A 19.0 ppb (15) 0.31 ppb (3) 35.0 μg/m3 (32) N/A 39.0
 
Jan. 24, 2020, 5 p.m. 57.9 ppb (54) 31.6 ppb (29) N/A 26.0 ppb (24) N/A N/A 10.0 ppb (8) 0.62 ppb (7) 44.0 μg/m3 (40) N/A 54.0
 
Jan. 24, 2020, 4 p.m. 83.5 ppb (81) 56.9 ppb (53) N/A 27.0 ppb (25) N/A N/A 2.0 ppb (2) 1.0 ppb (11) 49.0 μg/m3 (45) N/A 81.0
 
Jan. 24, 2020, 3 p.m. 78.1 ppb (76) 52.4 ppb (49) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.73 ppb (8) 54.0 μg/m3 (49) N/A 76.0
 
Jan. 24, 2020, 2 p.m. 63.6 ppb (60) 41.5 ppb (38) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.6 ppb (7) 31.0 μg/m3 (28) N/A 60.0
 
Jan. 24, 2020, 1 p.m. 44.5 ppb (41) 22.8 ppb (21) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.49 ppb (5) 17.0 μg/m3 (15) N/A 41.0
 
Jan. 24, 2020, noon 40.2 ppb (37) 20.7 ppb (19) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.42 ppb (5) 7.0 μg/m3 (6) N/A 37.0
 
Jan. 24, 2020, 11 a.m. 41.2 ppb (38) 21.7 ppb (20) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.44 ppb (5) 16.0 μg/m3 (15) N/A 38.0
 
Jan. 24, 2020, 10 a.m. 41.0 ppb (38) 21.1 ppb (20) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.44 ppb (5) 18.0 μg/m3 (16) N/A 38.0
 
Jan. 24, 2020, 9 a.m. 43.3 ppb (40) 21.8 ppb (20) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.51 ppb (6) 20.0 μg/m3 (18) N/A 40.0
 
Jan. 24, 2020, 8 a.m. 53.3 ppb (49) 30.8 ppb (29) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.56 ppb (6) 42.0 μg/m3 (38) N/A 49.0
 
Jan. 24, 2020, 7 a.m. 53.4 ppb (49) 29.5 ppb (27) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.54 ppb (6) 33.0 μg/m3 (30) N/A 49.0
 
Jan. 24, 2020, 6 a.m. 50.1 ppb (46) 24.6 ppb (23) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 0.49 ppb (5) 32.0 μg/m3 (29) N/A 46.0
 
Jan. 24, 2020, 5 a.m. 41.0 ppb (38) 11.6 ppb (11) N/A 29.0 ppb (27) N/A N/A 0.0 ppb (0) 0.35 ppb (4) 38.0 μg/m3 (35) N/A 38.0
 
Jan. 24, 2020, 4 a.m. 46.0 ppb (43) 11.9 ppb (11) N/A 34.0 ppb (31) N/A N/A 0.0 ppb (0) 0.36 ppb (4) 40.0 μg/m3 (36) N/A 43.0
 
Jan. 24, 2020, 3 a.m. 45.9 ppb (42) 12.4 ppb (11) N/A 34.0 ppb (31) N/A N/A 2.0 ppb (2) 0.42 ppb (5) 32.0 μg/m3 (29) N/A 42.0
 
Jan. 24, 2020, 2 a.m. 34.2 ppb (32) 3.2 ppb (3) N/A 31.0 ppb (29) N/A N/A 5.0 ppb (4) 0.23 ppb (3) 28.0 μg/m3 (25) N/A 32.0
 
Jan. 24, 2020, 1 a.m. 26.8 ppb (25) 1.5 ppb (1) N/A 25.0 ppb (23) N/A N/A 15.0 ppb (12) 0.19 ppb (2) 26.0 μg/m3 (24) N/A 25.0
 
Jan. 24, 2020, midnight 9.1 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) N/A 19.0 μg/m3 (17) N/A 25.0
 
Jan. 23, 2020, 11 p.m. 4.8 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) N/A 32.0
 
Jan. 23, 2020, 10 p.m. 7.4 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) N/A 7.0 μg/m3 (6) N/A 32.0
 
Jan. 23, 2020, 9 p.m. 4.5 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A 8.0 μg/m3 (7) N/A 33.0
 
Jan. 23, 2020, 8 p.m. 4.4 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) N/A 5.0 μg/m3 (5) N/A 32.0
 
Jan. 23, 2020, 7 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A 4.0 μg/m3 (4) N/A 31.0
 
Jan. 23, 2020, 6 p.m. 7.0 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.04 ppb (0) 5.0 μg/m3 (5) N/A 27.0
 
Jan. 23, 2020, 5 p.m. 21.7 ppb (20) 8.0 ppb (7) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) 0.22 ppb (2) 18.0 μg/m3 (16) N/A 20.0
 
Jan. 23, 2020, 4 p.m. 46.0 ppb (43) 26.2 ppb (24) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (5) 0.4 ppb (4) 32.0 μg/m3 (29) N/A 43.0
 
Jan. 23, 2020, 3 p.m. 74.7 ppb (72) 51.2 ppb (47) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.52 ppb (6) 39.0 μg/m3 (35) N/A 72.0
 
Jan. 23, 2020, 2 p.m. 46.1 ppb (43) 24.2 ppb (22) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.44 ppb (5) 20.0 μg/m3 (18) N/A 43.0
 
Jan. 23, 2020, 1 p.m. 30.4 ppb (28) 8.1 ppb (8) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.2 ppb (2) 34.0 μg/m3 (31) N/A 31.0
 
Jan. 23, 2020, noon 20.7 ppb (19) 3.3 ppb (3) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.14 ppb (2) 17.0 μg/m3 (15) N/A 19.0
 
Jan. 23, 2020, 11 a.m. 46.6 ppb (43) 28.4 ppb (26) N/A 18.0 ppb (17) N/A N/A 0.0 ppb (0) 0.53 ppb (6) 28.0 μg/m3 (25) N/A 43.0
 
Jan. 23, 2020, 10 a.m. 43.1 ppb (40) 24.2 ppb (22) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.46 ppb (5) 26.0 μg/m3 (24) N/A 40.0
 
Jan. 23, 2020, 9 a.m. 51.0 ppb (47) 32.1 ppb (30) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.51 ppb (6) 31.0 μg/m3 (28) N/A 47.0
 
Jan. 23, 2020, 8 a.m. 49.3 ppb (46) 29.7 ppb (28) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.54 ppb (6) 42.0 μg/m3 (38) N/A 46.0
 
Jan. 23, 2020, 7 a.m. 63.6 ppb (60) 43.5 ppb (40) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.6 ppb (7) 58.0 μg/m3 (52) N/A 60.0
 
Jan. 23, 2020, 6 a.m. 48.4 ppb (45) 28.4 ppb (26) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.5 ppb (6) 55.0 μg/m3 (50) N/A 50.0
 
Jan. 23, 2020, 5 a.m. 33.9 ppb (31) 11.3 ppb (10) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.21 ppb (2) 42.0 μg/m3 (38) N/A 38.0
 
Jan. 23, 2020, 4 a.m. 42.3 ppb (39) 15.9 ppb (15) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.28 ppb (3) 47.0 μg/m3 (43) N/A 43.0
 
Jan. 23, 2020, 3 a.m. 39.4 ppb (36) 8.5 ppb (8) N/A 31.0 ppb (29) N/A N/A 1.0 ppb (1) 0.33 ppb (4) 65.0 μg/m3 (55) N/A 55.0
 
Jan. 23, 2020, 2 a.m. 45.5 ppb (42) 8.8 ppb (8) N/A 37.0 ppb (34) N/A N/A 2.0 ppb (2) 0.56 ppb (6) 51.0 μg/m3 (46) N/A 46.0
 
Jan. 23, 2020, 1 a.m. 32.6 ppb (30) 3.4 ppb (3) N/A 29.0 ppb (27) N/A N/A 11.0 ppb (8) 0.31 ppb (3) 37.0 μg/m3 (34) N/A 34.0
 
Jan. 23, 2020, midnight 18.5 ppb (17) 2.3 ppb (2) N/A 16.0 ppb (15) N/A N/A 29.0 ppb (22) 0.19 ppb (2) 32.0 μg/m3 (29) N/A 29.0
 
Jan. 22, 2020, 11 p.m. 14.8 ppb (14) 2.3 ppb (2) N/A 12.0 ppb (11) N/A N/A 34.0 ppb (26) 0.17 ppb (2) 30.0 μg/m3 (27) N/A 27.0
 
Jan. 22, 2020, 10 p.m. 12.3 ppb (11) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) 0.17 ppb (2) 30.0 μg/m3 (27) N/A 28.0
 
Jan. 22, 2020, 9 p.m. 13.2 ppb (12) 3.4 ppb (3) N/A 10.0 ppb (9) N/A N/A 36.0 ppb (28) 0.09 ppb (1) 27.0 μg/m3 (25) N/A 28.0
 
Jan. 22, 2020, 8 p.m. 16.4 ppb (15) 5.2 ppb (5) N/A 11.0 ppb (10) N/A N/A 32.0 ppb (25) 0.05 ppb (1) 28.0 μg/m3 (25) N/A 25.0
 
Jan. 22, 2020, 7 p.m. 15.9 ppb (15) 4.9 ppb (5) N/A 11.0 ppb (10) N/A N/A 31.0 ppb (24) 0.05 ppb (1) 23.0 μg/m3 (21) N/A 24.0
 
Jan. 22, 2020, 6 p.m. 17.4 ppb (16) 4.8 ppb (4) N/A 13.0 ppb (12) N/A N/A 27.0 ppb (21) 0.04 ppb (0) 21.0 μg/m3 (19) N/A 21.0
 
Jan. 22, 2020, 5 p.m. 19.1 ppb (18) 5.8 ppb (5) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.09 ppb (1) 27.0 μg/m3 (25) N/A 25.0
 
Jan. 22, 2020, 4 p.m. 22.7 ppb (21) 6.4 ppb (6) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 0.13 ppb (1) 34.0 μg/m3 (31) N/A 31.0
 
Jan. 22, 2020, 3 p.m. 38.6 ppb (36) 14.3 ppb (13) N/A 24.0 ppb (22) N/A N/A 2.0 ppb (2) 0.2 ppb (2) 41.0 μg/m3 (37) N/A 37.0
 
Jan. 22, 2020, 2 p.m. 43.5 ppb (40) 18.9 ppb (18) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 0.32 ppb (4) 36.0 μg/m3 (33) N/A 40.0
 
Jan. 22, 2020, 1 p.m. 37.2 ppb (34) 11.5 ppb (11) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.14 ppb (2) 16.0 μg/m3 (15) N/A 34.0
 
Jan. 22, 2020, noon 35.8 ppb (33) 10.6 ppb (10) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 0.17 ppb (2) 22.0 μg/m3 (20) N/A 33.0
 
Jan. 22, 2020, 11 a.m. 25.5 ppb (24) 4.1 ppb (4) N/A 21.0 ppb (19) N/A N/A 2.0 ppb (2) 0.17 ppb (2) 25.0 μg/m3 (23) N/A 24.0
 
Jan. 22, 2020, 10 a.m. 18.7 ppb (17) 1.1 ppb (1) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) 0.14 ppb (2) 22.0 μg/m3 (20) N/A 20.0
 
Jan. 22, 2020, 9 a.m. 30.1 ppb (28) 1.7 ppb (2) N/A 28.0 ppb (26) N/A N/A 4.0 ppb (3) 0.13 ppb (1) 23.0 μg/m3 (21) N/A 28.0
 
Jan. 22, 2020, 8 a.m. 27.3 ppb (25) 1.3 ppb (1) N/A 26.0 ppb (24) N/A N/A 7.0 ppb (5) 0.13 ppb (1) 24.0 μg/m3 (22) N/A 25.0
 
Jan. 22, 2020, 7 a.m. 20.9 ppb (19) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (10) 0.07 ppb (1) 24.0 μg/m3 (22) N/A 22.0
 
Jan. 22, 2020, 6 a.m. 15.2 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) 0.04 ppb (0) 23.0 μg/m3 (21) N/A 21.0
 
Jan. 22, 2020, 5 a.m. 16.3 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 21.0 ppb (16) 0.02 ppb (0) 21.0 μg/m3 (19) N/A 19.0
 
Jan. 22, 2020, 4 a.m. 20.6 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (13) 0.06 ppb (1) 21.0 μg/m3 (19) N/A 19.0
 
Jan. 22, 2020, 3 a.m. 21.6 ppb (20) 2.3 ppb (2) N/A 19.0 ppb (18) N/A N/A 17.0 ppb (13) 0.07 ppb (1) 22.0 μg/m3 (20) N/A 20.0
 
Jan. 22, 2020, 2 a.m. 16.3 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) 0.06 ppb (1) 21.0 μg/m3 (19) N/A 19.0
 
Jan. 22, 2020, 1 a.m. 17.2 ppb (16) 0.4 ppb (0) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) 0.07 ppb (1) 21.0 μg/m3 (19) N/A 19.0
 
Jan. 22, 2020, midnight 15.9 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 26.0 ppb (20) 0.06 ppb (1) 23.0 μg/m3 (21) N/A 21.0
 
Jan. 21, 2020, 11 p.m. 14.6 ppb (14) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 29.0 ppb (22) 0.01 ppb (0) 21.0 μg/m3 (19) N/A 22.0
 
Jan. 21, 2020, 10 p.m. 12.6 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 31.0 ppb (24) N/A 20.0 μg/m3 (18) N/A 24.0
 
Jan. 21, 2020, 9 p.m. 12.1 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) 0.0 ppb (0) 23.0 μg/m3 (21) N/A 25.0
 
Jan. 21, 2020, 8 p.m. 9.9 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) N/A 22.0 μg/m3 (20) N/A 25.0
 
Jan. 21, 2020, 7 p.m. 12.9 ppb (12) 2.4 ppb (2) N/A 11.0 ppb (10) N/A N/A 30.0 ppb (23) 0.01 ppb (0) 21.0 μg/m3 (19) N/A 23.0
 
Jan. 21, 2020, 6 p.m. 17.8 ppb (16) 4.3 ppb (4) N/A 13.0 ppb (12) N/A N/A 25.0 ppb (19) 0.03 ppb (0) 20.0 μg/m3 (18) N/A 19.0
 
Jan. 21, 2020, 5 p.m. 21.0 ppb (19) 4.5 ppb (4) N/A 16.0 ppb (15) N/A N/A 21.0 ppb (16) 0.05 ppb (1) 26.0 μg/m3 (24) N/A 24.0
 
Jan. 21, 2020, 4 p.m. 32.9 ppb (30) 13.5 ppb (12) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.17 ppb (2) 30.0 μg/m3 (27) N/A 30.0
 
Jan. 21, 2020, 3 p.m. 51.3 ppb (48) 25.4 ppb (24) N/A 26.0 ppb (24) N/A N/A 1.0 ppb (1) 0.29 ppb (3) 30.0 μg/m3 (27) N/A 48.0
 
Jan. 21, 2020, 2 p.m. 57.4 ppb (54) 35.0 ppb (32) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.48 ppb (5) 22.0 μg/m3 (20) N/A 54.0
 
Jan. 21, 2020, 1 p.m. 49.8 ppb (46) 29.5 ppb (27) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.53 ppb (6) 26.0 μg/m3 (24) N/A 46.0
 
Jan. 21, 2020, noon 45.0 ppb (42) 24.4 ppb (23) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.43 ppb (5) 23.0 μg/m3 (21) N/A 42.0
 
Jan. 21, 2020, 11 a.m. 41.1 ppb (38) 18.4 ppb (17) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.38 ppb (4) 23.0 μg/m3 (21) N/A 38.0
 
Jan. 21, 2020, 10 a.m. 43.8 ppb (41) 19.1 ppb (18) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 0.4 ppb (4) 31.0 μg/m3 (28) N/A 41.0
 
Jan. 21, 2020, 9 a.m. 45.4 ppb (42) 15.9 ppb (15) N/A 30.0 ppb (28) N/A N/A 0.0 ppb (0) 0.43 ppb (5) 35.0 μg/m3 (32) N/A 42.0
 
Jan. 21, 2020, 8 a.m. 53.6 ppb (50) 26.3 ppb (24) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 0.51 ppb (6) 42.0 μg/m3 (38) N/A 50.0
 
Jan. 21, 2020, 7 a.m. 64.5 ppb (61) 35.6 ppb (33) N/A 29.0 ppb (27) N/A N/A -1.0 ppb (0) 0.49 ppb (5) 47.0 μg/m3 (43) N/A 61.0
 
Jan. 21, 2020, 6 a.m. 56.9 ppb (53) 31.4 ppb (29) N/A 25.0 ppb (23) N/A N/A -1.0 ppb (0) 0.42 ppb (5) 48.0 μg/m3 (44) N/A 53.0
 
Jan. 21, 2020, 5 a.m. 42.3 ppb (39) 17.4 ppb (16) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 0.29 ppb (3) 44.0 μg/m3 (40) N/A 40.0
 
Jan. 21, 2020, 4 a.m. 44.2 ppb (41) 17.3 ppb (16) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 0.25 ppb (3) 43.0 μg/m3 (39) N/A 41.0
 
Jan. 21, 2020, 3 a.m. 55.0 ppb (51) 24.2 ppb (22) N/A 31.0 ppb (29) N/A N/A 0.0 ppb (0) 0.5 ppb (6) 84.0 μg/m3 (64) N/A 64.0
 
Jan. 21, 2020, 2 a.m. 54.4 ppb (50) 18.7 ppb (17) N/A 36.0 ppb (33) N/A N/A 0.0 ppb (0) 0.63 ppb (7) 67.0 μg/m3 (56) N/A 56.0
 
Jan. 21, 2020, 1 a.m. 36.1 ppb (33) 3.4 ppb (3) N/A 33.0 ppb (31) N/A N/A 5.0 ppb (4) 0.36 ppb (4) 51.0 μg/m3 (46) N/A 46.0
 
Jan. 21, 2020, midnight 30.6 ppb (28) 3.0 ppb (3) N/A 28.0 ppb (26) N/A N/A 12.0 ppb (9) 0.25 ppb (3) 45.0 μg/m3 (41) N/A 41.0
 
Jan. 20, 2020, 11 p.m. 27.1 ppb (25) 3.9 ppb (4) N/A 23.0 ppb (21) N/A N/A 17.0 ppb (13) 0.2 ppb (2) 48.0 μg/m3 (44) N/A 44.0