AQSQID: 060371201

Site Name: Reseda

Location: Reseda (Reseda), CA

Reporting: True, Located: True

Current AQI: 38.0

Reseda (Reseda) CA, US: 34.1992, -118.5331

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 17, 2020, 9 p.m. 15.1 ppb (14) 2.7 ppb (3) N/A 12.0 ppb (11) N/A N/A 58.0 ppb (45) 0.44 ppb (5) N/A 11.9 μg/m3 (50) 50.0
 
Feb. 17, 2020, 8 p.m. 14.8 ppb (14) 2.9 ppb (3) N/A 12.0 ppb (11) N/A N/A 52.0 ppb (40) 0.43 ppb (5) N/A 10.4 μg/m3 (43) 43.0
 
Feb. 17, 2020, 7 p.m. 17.7 ppb (16) 4.4 ppb (4) N/A 13.0 ppb (12) N/A N/A 42.0 ppb (32) 0.45 ppb (5) N/A 8.5 μg/m3 (35) 35.0
 
Feb. 17, 2020, 6 p.m. 12.9 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A N/A 41.0 ppb (32) 0.38 ppb (4) N/A 5.2 μg/m3 (22) 32.0
 
Feb. 17, 2020, 5 p.m. 25.5 ppb (24) 8.2 ppb (8) N/A 17.0 ppb (16) N/A N/A 29.0 ppb (22) 0.55 ppb (6) N/A 19.2 μg/m3 (65) 65.0
 
Feb. 17, 2020, 4 p.m. 44.9 ppb (42) 20.8 ppb (19) N/A 24.0 ppb (22) N/A N/A 16.0 ppb (12) 0.8 ppb (9) N/A 19.9 μg/m3 (67) 67.0
 
Feb. 17, 2020, 3 p.m. 59.0 ppb (55) 34.7 ppb (32) N/A 24.0 ppb (22) N/A N/A 5.0 ppb (4) 1.02 ppb (11) N/A 13.5 μg/m3 (53) 55.0
 
Feb. 17, 2020, 2 p.m. 50.6 ppb (47) 28.5 ppb (26) N/A 22.0 ppb (20) N/A N/A 2.0 ppb (2) 1.32 ppb (15) N/A 13.5 μg/m3 (53) 53.0
 
Feb. 17, 2020, 1 p.m. 35.9 ppb (33) 14.5 ppb (13) N/A 21.0 ppb (19) N/A N/A 2.0 ppb (2) 0.76 ppb (8) N/A 13.8 μg/m3 (54) 54.0
 
Feb. 17, 2020, noon 27.8 ppb (26) 5.9 ppb (5) N/A 22.0 ppb (20) N/A N/A 3.0 ppb (2) 0.66 ppb (7) N/A 13.3 μg/m3 (53) 53.0
 
Feb. 17, 2020, 11 a.m. 26.7 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.67 ppb (7) N/A 13.6 μg/m3 (53) 53.0
 
Feb. 17, 2020, 10 a.m. 25.6 ppb (24) 2.6 ppb (2) N/A 23.0 ppb (21) N/A N/A 6.0 ppb (5) 0.65 ppb (7) N/A 12.6 μg/m3 (51) 51.0
 
Feb. 17, 2020, 9 a.m. 27.8 ppb (26) 3.2 ppb (3) N/A 25.0 ppb (23) N/A N/A 4.0 ppb (3) 0.75 ppb (8) N/A 14.8 μg/m3 (56) 56.0
 
Feb. 17, 2020, 8 a.m. 33.3 ppb (31) 6.4 ppb (6) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 0.85 ppb (9) N/A 16.1 μg/m3 (59) 59.0
 
Feb. 17, 2020, 7 a.m. 30.8 ppb (29) 3.3 ppb (3) N/A 28.0 ppb (26) N/A N/A 5.0 ppb (4) 0.75 ppb (8) N/A 20.3 μg/m3 (68) 68.0
 
Feb. 17, 2020, 6 a.m. 30.1 ppb (28) 2.0 ppb (2) N/A 28.0 ppb (26) N/A N/A 8.0 ppb (6) 0.77 ppb (9) N/A 19.8 μg/m3 (67) 67.0
 
Feb. 17, 2020, 5 a.m. 19.9 ppb (18) 0.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (16) 0.55 ppb (6) N/A 17.6 μg/m3 (62) 62.0
 
Feb. 17, 2020, 4 a.m. 13.1 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 35.0 ppb (27) 0.38 ppb (4) N/A 12.1 μg/m3 (50) 50.0
 
Feb. 17, 2020, 3 a.m. 11.4 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 41.0 ppb (32) 0.37 ppb (4) N/A 12.9 μg/m3 (52) 52.0
 
Feb. 17, 2020, 2 a.m. 7.4 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 50.0 ppb (38) 0.32 ppb (4) N/A 17.1 μg/m3 (61) 61.0
 
Feb. 17, 2020, 1 a.m. 5.7 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) 0.31 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
Feb. 17, 2020, midnight 4.9 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (44) 0.32 ppb (4) N/A 13.9 μg/m3 (54) 54.0
 
Feb. 16, 2020, 11 p.m. 4.9 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (49) 0.33 ppb (4) N/A 11.0 μg/m3 (46) 49.0
 
Feb. 16, 2020, 10 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 66.0 ppb (51) 0.32 ppb (4) N/A 8.6 μg/m3 (36) 51.0
 
Feb. 16, 2020, 9 p.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) 0.31 ppb (3) N/A 8.8 μg/m3 (37) 52.0
 
Feb. 16, 2020, 8 p.m. 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (50) 0.29 ppb (3) N/A 8.3 μg/m3 (35) 50.0
 
Feb. 16, 2020, 7 p.m. 5.3 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 61.0 ppb (47) 0.3 ppb (3) N/A 8.7 μg/m3 (36) 47.0
 
Feb. 16, 2020, 6 p.m. 11.8 ppb (11) 2.5 ppb (2) N/A 9.0 ppb (8) N/A N/A 49.0 ppb (38) 0.4 ppb (4) N/A 25.5 μg/m3 (79) 79.0
 
Feb. 16, 2020, 5 p.m. 19.5 ppb (18) 5.6 ppb (5) N/A 14.0 ppb (13) N/A N/A 33.0 ppb (25) 0.51 ppb (6) N/A 20.7 μg/m3 (69) 69.0
 
Feb. 16, 2020, 4 p.m. 33.7 ppb (31) 14.8 ppb (14) N/A 19.0 ppb (18) N/A N/A 15.0 ppb (12) 0.65 ppb (7) N/A 13.5 μg/m3 (53) 53.0
 
Feb. 16, 2020, 3 p.m. 44.2 ppb (41) 22.9 ppb (21) N/A 21.0 ppb (19) N/A N/A 6.0 ppb (5) 0.81 ppb (9) N/A 12.3 μg/m3 (51) 51.0
 
Feb. 16, 2020, 2 p.m. 41.2 ppb (38) 19.2 ppb (18) N/A 22.0 ppb (20) N/A N/A 2.0 ppb (2) 0.87 ppb (10) N/A 12.5 μg/m3 (51) 51.0
 
Feb. 16, 2020, 1 p.m. 39.9 ppb (37) 17.0 ppb (16) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) 0.8 ppb (9) N/A 13.0 μg/m3 (52) 52.0
 
Feb. 16, 2020, noon 33.2 ppb (31) 8.2 ppb (8) N/A 25.0 ppb (23) N/A N/A 3.0 ppb (2) 0.71 ppb (8) N/A 14.5 μg/m3 (55) 55.0
 
Feb. 16, 2020, 11 a.m. 43.9 ppb (41) 17.5 ppb (16) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) 0.96 ppb (11) N/A 22.2 μg/m3 (72) 72.0
 
Feb. 16, 2020, 10 a.m. 40.1 ppb (37) 11.7 ppb (11) N/A 28.0 ppb (26) N/A N/A 3.0 ppb (2) 0.91 ppb (10) N/A 17.0 μg/m3 (61) 61.0
 
Feb. 16, 2020, 9 a.m. 39.3 ppb (36) 8.7 ppb (8) N/A 31.0 ppb (29) N/A N/A 3.0 ppb (2) 0.92 ppb (10) N/A 18.3 μg/m3 (63) 63.0
 
Feb. 16, 2020, 8 a.m. 39.6 ppb (37) 7.4 ppb (7) N/A 32.0 ppb (30) N/A N/A 4.0 ppb (3) 0.92 ppb (10) N/A 23.8 μg/m3 (75) 75.0
 
Feb. 16, 2020, 7 a.m. 32.4 ppb (30) 1.6 ppb (1) N/A 31.0 ppb (29) N/A N/A 8.0 ppb (6) 0.81 ppb (9) N/A 24.1 μg/m3 (76) 76.0
 
Feb. 16, 2020, 6 a.m. 36.6 ppb (34) 3.2 ppb (3) N/A 33.0 ppb (31) N/A N/A 6.0 ppb (5) 0.84 ppb (9) N/A 17.8 μg/m3 (62) 62.0
 
Feb. 16, 2020, 5 a.m. 28.2 ppb (26) 0.8 ppb (1) N/A 27.0 ppb (25) N/A N/A 14.0 ppb (11) 0.73 ppb (8) N/A 21.7 μg/m3 (71) 71.0
 
Feb. 16, 2020, 4 a.m. 24.3 ppb (23) 0.7 ppb (1) N/A 24.0 ppb (22) N/A N/A 20.0 ppb (15) 0.55 ppb (6) N/A 16.6 μg/m3 (60) 60.0
 
Feb. 16, 2020, 3 a.m. 22.1 ppb (20) 0.7 ppb (1) N/A 21.0 ppb (19) N/A N/A 30.0 ppb (23) 0.54 ppb (6) N/A 17.1 μg/m3 (61) 61.0
 
Feb. 16, 2020, 2 a.m. 10.3 ppb (10) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 47.0 ppb (36) 0.45 ppb (5) N/A 7.6 μg/m3 (32) 36.0
 
Feb. 16, 2020, 1 a.m. 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 56.0 ppb (43) 0.3 ppb (3) N/A 7.3 μg/m3 (30) 43.0
 
Feb. 16, 2020, midnight 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 60.0 ppb (46) 0.31 ppb (3) N/A 8.3 μg/m3 (35) 46.0
 
Feb. 15, 2020, 11 p.m. 7.1 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 62.0 ppb (48) 0.33 ppb (4) N/A 12.2 μg/m3 (50) 50.0
 
Feb. 15, 2020, 10 p.m. 9.8 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A 60.0 ppb (46) 0.37 ppb (4) N/A 13.4 μg/m3 (53) 53.0
 
Feb. 15, 2020, 9 p.m. 12.7 ppb (12) 2.3 ppb (2) N/A 10.0 ppb (9) N/A N/A 56.0 ppb (43) 0.37 ppb (4) N/A 13.3 μg/m3 (53) 53.0
 
Feb. 15, 2020, 8 p.m. 10.9 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 55.0 ppb (42) 0.35 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Feb. 15, 2020, 7 p.m. 8.2 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.32 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Feb. 15, 2020, 6 p.m. 14.9 ppb (14) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A 46.0 ppb (35) 0.37 ppb (4) N/A 18.9 μg/m3 (65) 65.0
 
Feb. 15, 2020, 5 p.m. 24.0 ppb (22) 7.1 ppb (7) N/A 17.0 ppb (16) N/A N/A 31.0 ppb (24) 0.5 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
Feb. 15, 2020, 4 p.m. 37.6 ppb (35) 14.4 ppb (13) N/A 23.0 ppb (21) N/A N/A 17.0 ppb (13) 0.65 ppb (7) N/A 12.7 μg/m3 (51) 51.0
 
Feb. 15, 2020, 3 p.m. 58.0 ppb (54) 32.0 ppb (30) N/A 26.0 ppb (24) N/A N/A 5.0 ppb (4) 0.96 ppb (11) N/A 11.0 μg/m3 (46) 54.0
 
Feb. 15, 2020, 2 p.m. 64.6 ppb (61) 40.1 ppb (37) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.96 ppb (11) N/A 10.5 μg/m3 (44) 61.0
 
Feb. 15, 2020, 1 p.m. 46.2 ppb (43) 19.6 ppb (18) N/A 27.0 ppb (25) N/A N/A 2.0 ppb (2) 0.78 ppb (9) N/A 14.0 μg/m3 (54) 54.0
 
Feb. 15, 2020, noon 37.9 ppb (35) 10.8 ppb (10) N/A 27.0 ppb (25) N/A N/A 3.0 ppb (2) 0.68 ppb (8) N/A 13.2 μg/m3 (53) 53.0
 
Feb. 15, 2020, 11 a.m. 34.4 ppb (32) 5.5 ppb (5) N/A 29.0 ppb (27) N/A N/A 3.0 ppb (2) 0.7 ppb (8) N/A 10.8 μg/m3 (45) 45.0
 
Feb. 15, 2020, 10 a.m. 35.2 ppb (33) 5.1 ppb (5) N/A 30.0 ppb (28) N/A N/A 4.0 ppb (3) 0.71 ppb (8) N/A 20.2 μg/m3 (67) 67.0
 
Feb. 15, 2020, 9 a.m. 25.4 ppb (24) 0.7 ppb (1) N/A 25.0 ppb (23) N/A N/A 9.0 ppb (7) 0.61 ppb (7) N/A 14.6 μg/m3 (56) 56.0
 
Feb. 15, 2020, 8 a.m. 18.1 ppb (17) 0.6 ppb (1) N/A 17.0 ppb (16) N/A N/A 22.0 ppb (17) 0.51 ppb (6) N/A 15.6 μg/m3 (58) 58.0
 
Feb. 15, 2020, 7 a.m. 24.4 ppb (23) 0.6 ppb (1) N/A 24.0 ppb (22) N/A N/A 18.0 ppb (14) 0.57 ppb (6) N/A 15.8 μg/m3 (58) 58.0
 
Feb. 15, 2020, 6 a.m. 27.3 ppb (25) 1.3 ppb (1) N/A 26.0 ppb (24) N/A N/A 18.0 ppb (14) 0.59 ppb (7) N/A 16.8 μg/m3 (60) 60.0
 
Feb. 15, 2020, 5 a.m. 23.8 ppb (22) 0.7 ppb (1) N/A 23.0 ppb (21) N/A N/A 24.0 ppb (18) 0.57 ppb (6) N/A 17.3 μg/m3 (61) 61.0
 
Feb. 15, 2020, 4 a.m. 20.2 ppb (19) 0.6 ppb (1) N/A 20.0 ppb (19) N/A N/A 31.0 ppb (24) 0.5 ppb (6) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 15, 2020, 3 a.m. 13.8 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 41.0 ppb (32) 0.4 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Feb. 15, 2020, 2 a.m. 11.4 ppb (11) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 49.0 ppb (38) 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 15, 2020, 1 a.m. 11.0 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 52.0 ppb (40) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 40.0
 
Feb. 15, 2020, midnight 7.7 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 58.0 ppb (45) 0.31 ppb (3) N/A 10.9 μg/m3 (45) 45.0
 
Feb. 14, 2020, 11 p.m. 10.3 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 56.0 ppb (43) 0.33 ppb (4) N/A 12.2 μg/m3 (50) 50.0
 
Feb. 14, 2020, 10 p.m. 14.8 ppb (14) 2.4 ppb (2) N/A 12.0 ppb (11) N/A N/A 53.0 ppb (41) 0.39 ppb (4) N/A 12.7 μg/m3 (51) 51.0
 
Feb. 14, 2020, 9 p.m. 16.3 ppb (15) 3.2 ppb (3) N/A 13.0 ppb (12) N/A N/A 50.0 ppb (38) 0.4 ppb (4) N/A 14.4 μg/m3 (55) 55.0
 
Feb. 14, 2020, 8 p.m. 17.9 ppb (17) 4.5 ppb (4) N/A 13.0 ppb (12) N/A N/A 47.0 ppb (36) 0.4 ppb (4) N/A 16.3 μg/m3 (59) 59.0
 
Feb. 14, 2020, 7 p.m. 12.4 ppb (11) 2.7 ppb (3) N/A 10.0 ppb (9) N/A N/A 51.0 ppb (39) 0.34 ppb (4) N/A 20.9 μg/m3 (69) 69.0
 
Feb. 14, 2020, 6 p.m. 17.6 ppb (16) 4.4 ppb (4) N/A 13.0 ppb (12) N/A N/A 41.0 ppb (32) 0.41 ppb (5) N/A 22.3 μg/m3 (72) 72.0
 
Feb. 14, 2020, 5 p.m. 35.0 ppb (32) 13.0 ppb (12) N/A 22.0 ppb (20) N/A N/A 24.0 ppb (18) 0.65 ppb (7) N/A 22.3 μg/m3 (72) 72.0
 
Feb. 14, 2020, 4 p.m. 54.7 ppb (51) 27.8 ppb (26) N/A 27.0 ppb (25) N/A N/A 11.0 ppb (8) 0.91 ppb (10) N/A 8.4 μg/m3 (35) 51.0
 
Feb. 14, 2020, 3 p.m. 74.0 ppb (71) 47.1 ppb (44) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 1.16 ppb (13) N/A 6.9 μg/m3 (29) 71.0
 
Feb. 14, 2020, 2 p.m. 61.5 ppb (58) 36.1 ppb (33) N/A 25.0 ppb (23) N/A N/A 2.0 ppb (2) 0.89 ppb (10) N/A 7.9 μg/m3 (33) 58.0
 
Feb. 14, 2020, 1 p.m. 44.4 ppb (41) 19.2 ppb (18) N/A 25.0 ppb (23) N/A N/A 2.0 ppb (2) 0.68 ppb (8) N/A 5.4 μg/m3 (23) 41.0
 
Feb. 14, 2020, noon 29.9 ppb (28) 4.8 ppb (4) N/A 25.0 ppb (23) N/A N/A 3.0 ppb (2) 0.51 ppb (6) N/A 8.2 μg/m3 (34) 34.0
 
Feb. 14, 2020, 11 a.m. 26.7 ppb (25) 2.2 ppb (2) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) 0.5 ppb (6) N/A 12.3 μg/m3 (51) 51.0
 
Feb. 14, 2020, 10 a.m. 32.0 ppb (30) 4.1 ppb (4) N/A 28.0 ppb (26) N/A N/A 4.0 ppb (3) 0.6 ppb (7) N/A 12.8 μg/m3 (52) 52.0
 
Feb. 14, 2020, 9 a.m. 26.5 ppb (25) 1.1 ppb (1) N/A 25.0 ppb (23) N/A N/A 8.0 ppb (6) 0.58 ppb (6) N/A 10.6 μg/m3 (44) 44.0
 
Feb. 14, 2020, 8 a.m. 35.0 ppb (32) 3.7 ppb (3) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) 0.65 ppb (7) N/A 7.8 μg/m3 (32) 32.0
 
Feb. 14, 2020, 7 a.m. 26.3 ppb (24) 1.2 ppb (1) N/A 25.0 ppb (23) N/A N/A 14.0 ppb (11) 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 14, 2020, 6 a.m. 16.7 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 27.0 ppb (21) 0.42 ppb (5) N/A 9.9 μg/m3 (41) 41.0
 
Feb. 14, 2020, 5 a.m. 14.4 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 32.0 ppb (25) 0.4 ppb (4) N/A 11.9 μg/m3 (50) 50.0
 
Feb. 14, 2020, 4 a.m. 14.6 ppb (14) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 33.0 ppb (25) 0.4 ppb (4) N/A 12.1 μg/m3 (50) 50.0
 
Feb. 14, 2020, 3 a.m. 12.6 ppb (12) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 38.0 ppb (29) 0.36 ppb (4) N/A 10.4 μg/m3 (43) 43.0
 
Feb. 14, 2020, 2 a.m. 13.7 ppb (13) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 39.0 ppb (30) 0.36 ppb (4) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 14, 2020, 1 a.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 49.0 ppb (38) 0.36 ppb (4) N/A 5.5 μg/m3 (23) 38.0
 
Feb. 14, 2020, midnight 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 56.0 ppb (43) 0.28 ppb (3) N/A 5.6 μg/m3 (23) 43.0
 
Feb. 13, 2020, 11 p.m. 4.7 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (44) 0.28 ppb (3) N/A 6.8 μg/m3 (28) 44.0
 
Feb. 13, 2020, 10 p.m. 8.5 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 55.0 ppb (42) 0.34 ppb (4) N/A 7.1 μg/m3 (30) 42.0
 
Feb. 13, 2020, 9 p.m. 10.4 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A 52.0 ppb (40) 0.34 ppb (4) N/A 8.5 μg/m3 (35) 40.0
 
Feb. 13, 2020, 8 p.m. 12.3 ppb (11) 2.8 ppb (3) N/A 10.0 ppb (9) N/A N/A 48.0 ppb (37) 0.36 ppb (4) N/A 10.8 μg/m3 (45) 45.0
 
Feb. 13, 2020, 7 p.m. 19.1 ppb (18) 5.0 ppb (5) N/A 14.0 ppb (13) N/A N/A 41.0 ppb (32) 0.49 ppb (5) N/A 16.7 μg/m3 (60) 60.0
 
Feb. 13, 2020, 6 p.m. 31.5 ppb (29) 11.2 ppb (10) N/A 20.0 ppb (19) N/A N/A 29.0 ppb (22) 0.57 ppb (6) N/A 17.9 μg/m3 (63) 63.0
 
Feb. 13, 2020, 5 p.m. 43.5 ppb (40) 18.6 ppb (17) N/A 25.0 ppb (23) N/A N/A 19.0 ppb (15) 0.73 ppb (8) N/A 11.7 μg/m3 (49) 49.0
 
Feb. 13, 2020, 4 p.m. 84.6 ppb (83) 53.4 ppb (49) N/A 31.0 ppb (29) N/A N/A 7.0 ppb (5) 1.21 ppb (13) N/A 16.4 μg/m3 (59) 83.0
 
Feb. 13, 2020, 3 p.m. 79.1 ppb (77) 52.4 ppb (49) N/A 27.0 ppb (25) N/A N/A 3.0 ppb (2) 1.15 ppb (13) N/A 9.9 μg/m3 (41) 77.0
 
Feb. 13, 2020, 2 p.m. 61.9 ppb (58) 35.7 ppb (33) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) 0.9 ppb (10) N/A 8.9 μg/m3 (37) 58.0
 
Feb. 13, 2020, 1 p.m. 47.2 ppb (44) 22.2 ppb (21) N/A 25.0 ppb (23) N/A N/A 2.0 ppb (2) 0.7 ppb (8) N/A 5.7 μg/m3 (24) 44.0
 
Feb. 13, 2020, noon 39.2 ppb (36) 13.4 ppb (12) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) 0.58 ppb (6) N/A 6.9 μg/m3 (29) 36.0
 
Feb. 13, 2020, 11 a.m. 39.7 ppb (37) 12.2 ppb (11) N/A 27.0 ppb (25) N/A N/A 2.0 ppb (2) 0.6 ppb (7) N/A 7.5 μg/m3 (31) 37.0
 
Feb. 13, 2020, 10 a.m. 49.0 ppb (45) 21.0 ppb (19) N/A 28.0 ppb (26) N/A N/A 3.0 ppb (2) 0.79 ppb (9) N/A 8.2 μg/m3 (34) 45.0
 
Feb. 13, 2020, 9 a.m. 49.6 ppb (46) 18.1 ppb (17) N/A 32.0 ppb (30) N/A N/A 2.0 ppb (2) 0.77 ppb (9) N/A 10.6 μg/m3 (44) 46.0
 
Feb. 13, 2020, 8 a.m. 42.8 ppb (40) 10.8 ppb (10) N/A 32.0 ppb (30) N/A N/A 3.0 ppb (2) 0.74 ppb (8) N/A 13.1 μg/m3 (52) 52.0
 
Feb. 13, 2020, 7 a.m. 53.8 ppb (50) 18.7 ppb (17) N/A 35.0 ppb (32) N/A N/A 3.0 ppb (2) 0.88 ppb (10) N/A 11.8 μg/m3 (49) 50.0
 
Feb. 13, 2020, 6 a.m. 49.9 ppb (46) 12.6 ppb (12) N/A 37.0 ppb (34) N/A N/A 3.0 ppb (2) 0.8 ppb (9) N/A 8.3 μg/m3 (35) 46.0
 
Feb. 13, 2020, 5 a.m. 38.8 ppb (36) 3.0 ppb (3) N/A 36.0 ppb (33) N/A N/A 6.0 ppb (5) 0.7 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 13, 2020, 4 a.m. 38.0 ppb (35) 3.5 ppb (3) N/A 34.0 ppb (31) N/A N/A 9.0 ppb (7) 0.72 ppb (8) N/A 9.9 μg/m3 (41) 41.0
 
Feb. 13, 2020, 3 a.m. 26.3 ppb (24) 0.7 ppb (1) N/A 26.0 ppb (24) N/A N/A 22.0 ppb (17) 0.51 ppb (6) N/A 9.2 μg/m3 (38) 38.0
 
Feb. 13, 2020, 2 a.m. 19.5 ppb (18) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 30.0 ppb (23) 0.4 ppb (4) N/A 4.3 μg/m3 (18) 23.0
 
Feb. 13, 2020, 1 a.m. 8.3 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 47.0 ppb (36) 0.3 ppb (3) N/A 2.6 μg/m3 (11) 36.0
 
Feb. 13, 2020, midnight 5.1 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) 0.25 ppb (3) N/A 5.8 μg/m3 (24) 39.0
 
Feb. 12, 2020, 11 p.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (39) 0.23 ppb (3) N/A 6.8 μg/m3 (28) 39.0
 
Feb. 12, 2020, 10 p.m. 6.8 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 12, 2020, 9 p.m. 11.0 ppb (10) 2.5 ppb (2) N/A 9.0 ppb (8) N/A N/A 46.0 ppb (35) 0.3 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
Feb. 12, 2020, 8 p.m. 13.2 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A N/A 42.0 ppb (32) 0.32 ppb (4) N/A N/A 32.0
 
Feb. 12, 2020, 7 p.m. 13.0 ppb (12) 3.5 ppb (3) N/A 9.0 ppb (8) N/A N/A 40.0 ppb (31) 0.3 ppb (3) N/A N/A 31.0
 
Feb. 12, 2020, 6 p.m. 17.1 ppb (16) 4.9 ppb (5) N/A 12.0 ppb (11) N/A N/A 35.0 ppb (27) 0.34 ppb (4) N/A 24.5 μg/m3 (77) 77.0
 
Feb. 12, 2020, 5 p.m. 44.2 ppb (41) 21.3 ppb (20) N/A 23.0 ppb (21) N/A N/A 21.0 ppb (16) 0.64 ppb (7) N/A 11.8 μg/m3 (49) 49.0
 
Feb. 12, 2020, 4 p.m. 71.7 ppb (69) 42.7 ppb (40) N/A 29.0 ppb (27) N/A N/A 9.0 ppb (7) 1.01 ppb (11) N/A 11.2 μg/m3 (47) 69.0
 
Feb. 12, 2020, 3 p.m. 98.3 ppb (97) 71.8 ppb (69) N/A 26.0 ppb (24) N/A N/A 3.0 ppb (2) 1.44 ppb (16) N/A 6.2 μg/m3 (26) 97.0
 
Feb. 12, 2020, 2 p.m. 76.3 ppb (74) 52.9 ppb (49) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) 1.12 ppb (12) N/A 4.6 μg/m3 (19) 74.0
 
Feb. 12, 2020, 1 p.m. 58.6 ppb (55) 35.2 ppb (33) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) 0.82 ppb (9) N/A 9.4 μg/m3 (39) 55.0
 
Feb. 12, 2020, noon 53.1 ppb (49) 29.4 ppb (27) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.85 ppb (9) N/A 13.3 μg/m3 (53) 53.0
 
Feb. 12, 2020, 11 a.m. 40.6 ppb (38) 14.7 ppb (14) N/A 26.0 ppb (24) N/A N/A 2.0 ppb (2) 0.7 ppb (8) N/A 12.8 μg/m3 (52) 52.0
 
Feb. 12, 2020, 10 a.m. 47.4 ppb (44) 21.2 ppb (20) N/A 26.0 ppb (24) N/A N/A 3.0 ppb (2) 0.85 ppb (9) N/A 9.6 μg/m3 (40) 44.0
 
Feb. 12, 2020, 9 a.m. 55.8 ppb (52) 27.6 ppb (26) N/A 28.0 ppb (26) N/A N/A 2.0 ppb (2) 0.98 ppb (11) N/A 10.4 μg/m3 (43) 52.0
 
Feb. 12, 2020, 8 a.m. 53.9 ppb (50) 22.9 ppb (21) N/A 31.0 ppb (29) N/A N/A 3.0 ppb (2) 0.93 ppb (10) N/A 12.3 μg/m3 (51) 51.0
 
Feb. 12, 2020, 7 a.m. 56.5 ppb (53) 23.5 ppb (22) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) 1.01 ppb (11) N/A 12.1 μg/m3 (50) 53.0
 
Feb. 12, 2020, 6 a.m. 45.8 ppb (42) 11.3 ppb (10) N/A 35.0 ppb (32) N/A N/A 3.0 ppb (2) 0.88 ppb (10) N/A 12.4 μg/m3 (51) 51.0
 
Feb. 12, 2020, 5 a.m. 47.4 ppb (44) 10.7 ppb (10) N/A 37.0 ppb (34) N/A N/A 4.0 ppb (3) 0.87 ppb (10) N/A 18.3 μg/m3 (63) 63.0
 
Feb. 12, 2020, 4 a.m. 30.4 ppb (28) 1.8 ppb (2) N/A 29.0 ppb (27) N/A N/A 15.0 ppb (12) 0.64 ppb (7) N/A 6.6 μg/m3 (28) 28.0
 
Feb. 12, 2020, 3 a.m. 22.3 ppb (21) 0.6 ppb (1) N/A 22.0 ppb (20) N/A N/A 25.0 ppb (19) 0.5 ppb (6) N/A 3.6 μg/m3 (15) 21.0
 
Feb. 12, 2020, 2 a.m. 18.6 ppb (17) 0.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 30.0 ppb (23) 0.42 ppb (5) N/A 4.3 μg/m3 (18) 23.0
 
Feb. 12, 2020, 1 a.m. 13.5 ppb (12) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 38.0 ppb (29) 0.37 ppb (4) N/A 2.1 μg/m3 (9) 29.0
 
Feb. 12, 2020, midnight 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.23 ppb (3) N/A -2.0 μg/m3 (0) 36.0
 
Feb. 11, 2020, 11 p.m. 2.4 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.21 ppb (2) N/A -0.5 μg/m3 (0) 38.0
 
Feb. 11, 2020, 10 p.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.2 ppb (2) N/A 1.4 μg/m3 (6) 38.0
 
Feb. 11, 2020, 9 p.m. 1.5 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.21 ppb (2) N/A 0.6 μg/m3 (2) 38.0
 
Feb. 11, 2020, 8 p.m. 1.9 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.21 ppb (2) N/A 0.0 μg/m3 (0) 38.0
 
Feb. 11, 2020, 7 p.m. 1.9 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.21 ppb (2) N/A -1.3 μg/m3 (0) 37.0
 
Feb. 11, 2020, 6 p.m. 1.8 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.2 ppb (2) N/A -1.5 μg/m3 (0) 37.0
 
Feb. 11, 2020, 5 p.m. 2.5 ppb (2) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.21 ppb (2) N/A -0.1 μg/m3 (0) 34.0
 
Feb. 11, 2020, 4 p.m. 3.3 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.22 ppb (2) N/A 3.5 μg/m3 (15) 33.0
 
Feb. 11, 2020, 3 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.23 ppb (3) N/A 3.8 μg/m3 (16) 32.0
 
Feb. 11, 2020, 2 p.m. 2.9 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.23 ppb (3) N/A 2.8 μg/m3 (12) 32.0
 
Feb. 11, 2020, 1 p.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
Feb. 11, 2020, noon 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.2 ppb (2) N/A -2.3 μg/m3 (0) 33.0
 
Feb. 11, 2020, 11 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.19 ppb (2) N/A -0.1 μg/m3 (0) 34.0
 
Feb. 11, 2020, 10 a.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.2 ppb (2) N/A 0.8 μg/m3 (3) 35.0
 
Feb. 11, 2020, 9 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.2 ppb (2) N/A 0.8 μg/m3 (3) 34.0
 
Feb. 11, 2020, 8 a.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.2 ppb (2) N/A -1.1 μg/m3 (0) 34.0
 
Feb. 11, 2020, 7 a.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.2 ppb (2) N/A 0.1 μg/m3 (0) 34.0
 
Feb. 11, 2020, 6 a.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.21 ppb (2) N/A 3.8 μg/m3 (16) 34.0
 
Feb. 11, 2020, 5 a.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.23 ppb (3) N/A 3.3 μg/m3 (14) 32.0
 
Feb. 11, 2020, 4 a.m. 3.9 ppb (4) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.22 ppb (2) N/A 1.3 μg/m3 (5) 32.0
 
Feb. 11, 2020, 3 a.m. 5.6 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.24 ppb (3) N/A 4.1 μg/m3 (17) 30.0
 
Feb. 11, 2020, 2 a.m. 7.5 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 38.0 ppb (29) 0.28 ppb (3) N/A 2.6 μg/m3 (11) 29.0
 
Feb. 11, 2020, 1 a.m. 5.8 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.25 ppb (3) N/A 1.1 μg/m3 (5) 32.0
 
Feb. 11, 2020, midnight 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.21 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 10, 2020, 11 p.m. 2.3 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.21 ppb (2) N/A 12.1 μg/m3 (50) 50.0
 
Feb. 10, 2020, 10 p.m. 2.2 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.2 ppb (2) N/A 10.7 μg/m3 (45) 45.0