AQSQID: 060711004

Site Name: Upland

Location: Upland (Los Olivos), CA

Reporting: True, Located: True

Current AQI: 39.0

Upland (Los Olivos) CA, US: 34.10366, -117.629096

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 21, 2020, 4 a.m. 41.5 ppb (38) 4.3 ppb (4) N/A 37.0 ppb (34) N/A N/A 10.0 ppb (8) 0.61 ppb (7) 37.0 μg/m3 (34) 5.3 μg/m3 (22) 38.0
 
Feb. 21, 2020, 3 a.m. 38.4 ppb (36) 3.4 ppb (3) N/A 35.0 ppb (32) N/A N/A 16.0 ppb (12) 0.55 ppb (6) 42.0 μg/m3 (38) 1.7 μg/m3 (7) 38.0
 
Feb. 21, 2020, 2 a.m. 19.0 ppb (18) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 40.0 ppb (31) 0.35 ppb (4) 25.0 μg/m3 (23) 1.4 μg/m3 (6) 31.0
 
Feb. 21, 2020, 1 a.m. 13.4 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 52.0 ppb (40) 0.29 ppb (3) 26.0 μg/m3 (24) 1.4 μg/m3 (6) 40.0
 
Feb. 21, 2020, midnight 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 57.0 ppb (44) 0.2 ppb (2) 20.0 μg/m3 (18) 2.6 μg/m3 (11) 44.0
 
Feb. 20, 2020, 11 p.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (42) 0.18 ppb (2) 24.0 μg/m3 (22) 2.9 μg/m3 (12) 42.0
 
Feb. 20, 2020, 10 p.m. 9.9 ppb (9) 2.9 ppb (3) N/A 7.0 ppb (6) N/A N/A 53.0 ppb (41) 0.18 ppb (2) 19.0 μg/m3 (17) -1.0 μg/m3 (0) 41.0
 
Feb. 20, 2020, 9 p.m. 6.1 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) 0.17 ppb (2) 15.0 μg/m3 (14) 2.1 μg/m3 (9) 40.0
 
Feb. 20, 2020, 8 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) 0.19 ppb (2) 22.0 μg/m3 (20) 4.3 μg/m3 (18) 37.0
 
Feb. 20, 2020, 7 p.m. 13.3 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A 45.0 ppb (35) 0.22 ppb (2) 28.0 μg/m3 (25) 1.4 μg/m3 (6) 35.0
 
Feb. 20, 2020, 6 p.m. 27.8 ppb (26) 7.8 ppb (7) N/A 20.0 ppb (19) N/A N/A 35.0 ppb (27) 0.36 ppb (4) 44.0 μg/m3 (40) 20.2 μg/m3 (67) 67.0
 
Feb. 20, 2020, 5 p.m. 39.2 ppb (36) 13.3 ppb (12) N/A 26.0 ppb (24) N/A N/A 23.0 ppb (18) 0.53 ppb (6) 44.0 μg/m3 (40) 19.7 μg/m3 (66) 66.0
 
Feb. 20, 2020, 4 p.m. 34.1 ppb (32) 10.9 ppb (10) N/A 23.0 ppb (21) N/A N/A 21.0 ppb (16) 0.48 ppb (5) 42.0 μg/m3 (38) 17.1 μg/m3 (61) 61.0
 
Feb. 20, 2020, 3 p.m. 49.6 ppb (46) 18.4 ppb (17) N/A 31.0 ppb (29) N/A N/A 9.0 ppb (7) 0.56 ppb (6) 41.0 μg/m3 (37) 8.2 μg/m3 (34) 46.0
 
Feb. 20, 2020, 2 p.m. 37.2 ppb (34) 6.3 ppb (6) N/A 31.0 ppb (29) N/A N/A 6.0 ppb (5) 0.44 ppb (5) 31.0 μg/m3 (28) 8.7 μg/m3 (36) 36.0
 
Feb. 20, 2020, 1 p.m. 34.6 ppb (32) 4.2 ppb (4) N/A 30.0 ppb (28) N/A N/A 4.0 ppb (3) 0.44 ppb (5) 34.0 μg/m3 (31) 7.4 μg/m3 (31) 32.0
 
Feb. 20, 2020, noon 26.9 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (23) N/A N/A 8.0 ppb (6) 0.36 ppb (4) 32.0 μg/m3 (29) 3.9 μg/m3 (16) 29.0
 
Feb. 20, 2020, 11 a.m. 22.8 ppb (21) 0.7 ppb (1) N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) 0.33 ppb (4) 37.0 μg/m3 (34) 17.5 μg/m3 (62) 62.0
 
Feb. 20, 2020, 10 a.m. 28.2 ppb (26) 3.7 ppb (3) N/A 25.0 ppb (23) N/A N/A 8.0 ppb (6) 0.34 ppb (4) 43.0 μg/m3 (39) 13.6 μg/m3 (53) 53.0
 
Feb. 20, 2020, 9 a.m. 22.2 ppb (21) 0.4 ppb (0) N/A 22.0 ppb (20) N/A N/A 13.0 ppb (10) 0.45 ppb (5) 66.0 μg/m3 (56) 19.2 μg/m3 (65) 65.0
 
Feb. 20, 2020, 8 a.m. 24.7 ppb (23) 0.7 ppb (1) N/A 24.0 ppb (22) N/A N/A 11.0 ppb (8) 0.42 ppb (5) 42.0 μg/m3 (38) 19.7 μg/m3 (66) 66.0
 
Feb. 20, 2020, 7 a.m. 34.3 ppb (32) 4.5 ppb (4) N/A 30.0 ppb (28) N/A N/A 4.0 ppb (3) 0.57 ppb (6) 46.0 μg/m3 (42) 29.3 μg/m3 (87) 87.0
 
Feb. 20, 2020, 6 a.m. 36.4 ppb (34) 5.1 ppb (5) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) 0.6 ppb (7) 45.0 μg/m3 (41) 22.2 μg/m3 (72) 72.0
 
Feb. 20, 2020, 5 a.m. 38.8 ppb (36) 8.8 ppb (8) N/A 30.0 ppb (28) N/A N/A 6.0 ppb (5) 0.68 ppb (8) 52.0 μg/m3 (47) 25.6 μg/m3 (79) 79.0
 
Feb. 20, 2020, 4 a.m. 28.4 ppb (26) 2.0 ppb (2) N/A 26.0 ppb (24) N/A N/A 15.0 ppb (12) 0.49 ppb (5) 52.0 μg/m3 (47) 23.6 μg/m3 (75) 75.0
 
Feb. 20, 2020, 3 a.m. 20.4 ppb (19) 0.5 ppb (0) N/A 20.0 ppb (19) N/A N/A 29.0 ppb (22) 0.38 ppb (4) 48.0 μg/m3 (44) 18.0 μg/m3 (63) 63.0
 
Feb. 20, 2020, 2 a.m. 21.2 ppb (20) 0.5 ppb (0) N/A 21.0 ppb (19) N/A N/A 33.0 ppb (25) 0.36 ppb (4) 53.0 μg/m3 (48) 19.2 μg/m3 (65) 65.0
 
Feb. 20, 2020, 1 a.m. 18.8 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A 45.0 ppb (35) 0.35 ppb (4) 47.0 μg/m3 (43) 19.7 μg/m3 (66) 66.0
 
Feb. 20, 2020, midnight 12.8 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 57.0 ppb (44) 0.33 ppb (4) 38.0 μg/m3 (35) 12.9 μg/m3 (52) 52.0
 
Feb. 19, 2020, 11 p.m. 12.1 ppb (11) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 58.0 ppb (45) 0.32 ppb (4) 43.0 μg/m3 (39) 14.6 μg/m3 (56) 56.0
 
Feb. 19, 2020, 10 p.m. 10.4 ppb (10) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 58.0 ppb (45) 0.31 ppb (3) 49.0 μg/m3 (45) 13.9 μg/m3 (54) 54.0
 
Feb. 19, 2020, 9 p.m. 10.6 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 54.0 ppb (42) 0.29 ppb (3) 41.0 μg/m3 (37) 19.5 μg/m3 (66) 66.0
 
Feb. 19, 2020, 8 p.m. 17.4 ppb (16) 3.9 ppb (4) N/A 14.0 ppb (13) N/A N/A 47.0 ppb (36) 0.35 ppb (4) 57.0 μg/m3 (51) 27.9 μg/m3 (84) 84.0
 
Feb. 19, 2020, 7 p.m. 35.6 ppb (33) 11.4 ppb (11) N/A 24.0 ppb (22) N/A N/A 31.0 ppb (24) 0.47 ppb (5) 79.0 μg/m3 (62) 37.3 μg/m3 (104) 104.0
 
Feb. 19, 2020, 6 p.m. 38.1 ppb (35) 14.1 ppb (13) N/A 24.0 ppb (22) N/A N/A 23.0 ppb (18) 0.5 ppb (6) 78.0 μg/m3 (62) 35.8 μg/m3 (101) 101.0
 
Feb. 19, 2020, 5 p.m. 33.1 ppb (31) 12.5 ppb (12) N/A 21.0 ppb (19) N/A N/A 19.0 ppb (15) 0.49 ppb (5) 79.0 μg/m3 (62) 47.3 μg/m3 (130) 130.0
 
Feb. 19, 2020, 4 p.m. 31.8 ppb (29) 9.7 ppb (9) N/A 22.0 ppb (20) N/A N/A 14.0 ppb (11) 0.45 ppb (5) 71.0 μg/m3 (58) 47.1 μg/m3 (129) 129.0
 
Feb. 19, 2020, 3 p.m. 27.0 ppb (25) 4.6 ppb (4) N/A 22.0 ppb (20) N/A N/A 9.0 ppb (7) 0.43 ppb (5) 76.0 μg/m3 (60) 41.7 μg/m3 (116) 116.0
 
Feb. 19, 2020, 2 p.m. 22.1 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (6) 0.41 ppb (5) 65.0 μg/m3 (55) 43.6 μg/m3 (120) 120.0
 
Feb. 19, 2020, 1 p.m. 18.3 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) 0.4 ppb (4) 68.0 μg/m3 (56) 31.9 μg/m3 (92) 92.0
 
Feb. 19, 2020, noon 17.0 ppb (16) 1.1 ppb (1) N/A 16.0 ppb (15) N/A N/A 11.0 ppb (8) 0.41 ppb (5) 76.0 μg/m3 (60) 33.4 μg/m3 (96) 96.0
 
Feb. 19, 2020, 11 a.m. 16.6 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A N/A 10.0 ppb (8) 0.39 ppb (4) 76.0 μg/m3 (60) 24.1 μg/m3 (76) 76.0
 
Feb. 19, 2020, 10 a.m. 18.5 ppb (17) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) 0.41 ppb (5) 48.0 μg/m3 (44) 24.6 μg/m3 (77) 77.0
 
Feb. 19, 2020, 9 a.m. 19.7 ppb (18) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (3) 0.43 ppb (5) 43.0 μg/m3 (39) 20.7 μg/m3 (69) 69.0
 
Feb. 19, 2020, 8 a.m. 17.8 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) 0.43 ppb (5) 53.0 μg/m3 (48) 25.6 μg/m3 (79) 79.0
 
Feb. 19, 2020, 7 a.m. 16.8 ppb (16) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 17.0 ppb (13) 0.39 ppb (4) 49.0 μg/m3 (45) 23.4 μg/m3 (74) 74.0
 
Feb. 19, 2020, 6 a.m. 15.0 ppb (14) 0.4 ppb (0) N/A 15.0 ppb (14) N/A N/A 20.0 ppb (15) 0.35 ppb (4) 40.0 μg/m3 (36) 14.9 μg/m3 (56) 56.0
 
Feb. 19, 2020, 5 a.m. 22.2 ppb (21) 1.7 ppb (2) N/A 20.0 ppb (19) N/A N/A 18.0 ppb (14) 0.39 ppb (4) 42.0 μg/m3 (38) 15.1 μg/m3 (57) 57.0
 
Feb. 19, 2020, 4 a.m. 20.3 ppb (19) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 22.0 ppb (17) 0.38 ppb (4) 46.0 μg/m3 (42) 14.9 μg/m3 (56) 56.0
 
Feb. 19, 2020, 3 a.m. 20.5 ppb (19) 0.3 ppb (0) N/A 20.0 ppb (19) N/A N/A 30.0 ppb (23) 0.4 ppb (4) 45.0 μg/m3 (41) 19.2 μg/m3 (65) 65.0
 
Feb. 19, 2020, 2 a.m. 20.8 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 31.0 ppb (24) 0.38 ppb (4) 50.0 μg/m3 (45) 16.8 μg/m3 (60) 60.0
 
Feb. 19, 2020, 1 a.m. 23.7 ppb (22) 0.8 ppb (1) N/A 23.0 ppb (21) N/A N/A 34.0 ppb (26) 0.41 ppb (5) 55.0 μg/m3 (50) 24.1 μg/m3 (76) 76.0
 
Feb. 19, 2020, midnight 16.1 ppb (15) 1.1 ppb (1) N/A 15.0 ppb (14) N/A N/A 53.0 ppb (41) 0.34 ppb (4) 41.0 μg/m3 (37) 10.2 μg/m3 (42) 42.0
 
Feb. 18, 2020, 11 p.m. 11.2 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 53.0 ppb (41) 0.28 ppb (3) 31.0 μg/m3 (28) 9.9 μg/m3 (41) 41.0
 
Feb. 18, 2020, 10 p.m. 15.0 ppb (14) 2.9 ppb (3) N/A 12.0 ppb (11) N/A N/A 47.0 ppb (36) 0.33 ppb (4) 39.0 μg/m3 (35) 10.9 μg/m3 (45) 45.0
 
Feb. 18, 2020, 9 p.m. 18.0 ppb (17) 3.7 ppb (3) N/A 14.0 ppb (13) N/A N/A 46.0 ppb (35) 0.32 ppb (4) 44.0 μg/m3 (40) 10.2 μg/m3 (42) 42.0
 
Feb. 18, 2020, 8 p.m. 32.8 ppb (30) 7.4 ppb (7) N/A 25.0 ppb (23) N/A N/A 41.0 ppb (32) 0.5 ppb (6) 61.0 μg/m3 (53) 32.6 μg/m3 (94) 94.0
 
Feb. 18, 2020, 7 p.m. 48.6 ppb (45) 14.2 ppb (13) N/A 34.0 ppb (31) N/A N/A 30.0 ppb (23) 0.6 ppb (7) 74.0 μg/m3 (60) 30.5 μg/m3 (89) 89.0
 
Feb. 18, 2020, 6 p.m. 55.6 ppb (52) 19.7 ppb (18) N/A 36.0 ppb (33) N/A N/A 24.0 ppb (18) 0.64 ppb (7) 76.0 μg/m3 (60) 43.3 μg/m3 (120) 120.0
 
Feb. 18, 2020, 5 p.m. 67.0 ppb (64) 28.9 ppb (27) N/A 38.0 ppb (35) N/A N/A 13.0 ppb (10) 0.74 ppb (8) 76.0 μg/m3 (60) 40.9 μg/m3 (114) 114.0
 
Feb. 18, 2020, 4 p.m. 88.2 ppb (86) 49.5 ppb (46) N/A 39.0 ppb (36) N/A N/A 7.0 ppb (5) 0.8 ppb (9) 63.0 μg/m3 (54) 32.8 μg/m3 (94) 94.0
 
Feb. 18, 2020, 3 p.m. 78.3 ppb (76) 45.4 ppb (42) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) 0.84 ppb (9) 50.0 μg/m3 (45) 19.2 μg/m3 (65) 76.0
 
Feb. 18, 2020, 2 p.m. 45.0 ppb (42) 16.4 ppb (15) N/A 29.0 ppb (27) N/A N/A 2.0 ppb (2) 0.65 ppb (7) 44.0 μg/m3 (40) 9.6 μg/m3 (40) 42.0
 
Feb. 18, 2020, 1 p.m. 35.3 ppb (33) 6.3 ppb (6) N/A 29.0 ppb (27) N/A N/A 3.0 ppb (2) 0.5 ppb (6) 39.0 μg/m3 (35) 10.9 μg/m3 (45) 45.0
 
Feb. 18, 2020, noon 26.3 ppb (24) 2.8 ppb (3) N/A 23.0 ppb (21) N/A N/A 6.0 ppb (5) 0.38 ppb (4) 30.0 μg/m3 (27) 10.9 μg/m3 (45) 45.0
 
Feb. 18, 2020, 11 a.m. 19.7 ppb (18) 0.7 ppb (1) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (8) 0.31 ppb (3) 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
Feb. 18, 2020, 10 a.m. 20.0 ppb (19) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.34 ppb (4) 30.0 μg/m3 (27) 5.0 μg/m3 (21) 27.0
 
Feb. 18, 2020, 9 a.m. 18.1 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (16) N/A N/A 14.0 ppb (11) 0.35 ppb (4) 28.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
Feb. 18, 2020, 8 a.m. 24.7 ppb (23) 1.2 ppb (1) N/A 24.0 ppb (22) N/A N/A 9.0 ppb (7) 0.45 ppb (5) 33.0 μg/m3 (30) 12.2 μg/m3 (50) 50.0
 
Feb. 18, 2020, 7 a.m. 32.9 ppb (30) 3.1 ppb (3) N/A 30.0 ppb (28) N/A N/A 5.0 ppb (4) 0.59 ppb (7) 45.0 μg/m3 (41) 11.4 μg/m3 (48) 48.0
 
Feb. 18, 2020, 6 a.m. 38.1 ppb (35) 5.6 ppb (5) N/A 32.0 ppb (30) N/A N/A 4.0 ppb (3) 0.69 ppb (8) 47.0 μg/m3 (43) 21.0 μg/m3 (69) 69.0
 
Feb. 18, 2020, 5 a.m. 39.8 ppb (37) 5.3 ppb (5) N/A 34.0 ppb (31) N/A N/A 7.0 ppb (5) 0.65 ppb (7) 51.0 μg/m3 (46) 22.2 μg/m3 (72) 72.0
 
Feb. 18, 2020, 4 a.m. 38.3 ppb (35) 4.5 ppb (4) N/A 34.0 ppb (31) N/A N/A 13.0 ppb (10) 0.64 ppb (7) 57.0 μg/m3 (51) 18.4 μg/m3 (64) 64.0
 
Feb. 18, 2020, 3 a.m. 23.1 ppb (21) 0.9 ppb (1) N/A 22.0 ppb (20) N/A N/A 29.0 ppb (22) 0.42 ppb (5) 52.0 μg/m3 (47) 16.1 μg/m3 (59) 59.0
 
Feb. 18, 2020, 2 a.m. 21.0 ppb (19) 0.4 ppb (0) N/A 21.0 ppb (19) N/A N/A 37.0 ppb (28) 0.41 ppb (5) 55.0 μg/m3 (50) 19.5 μg/m3 (66) 66.0
 
Feb. 18, 2020, 1 a.m. 18.0 ppb (17) 0.5 ppb (0) N/A 18.0 ppb (17) N/A N/A 62.0 ppb (48) 0.41 ppb (5) 49.0 μg/m3 (45) 23.6 μg/m3 (75) 75.0
 
Feb. 18, 2020, midnight 13.0 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 69.0 ppb (53) 0.34 ppb (4) 40.0 μg/m3 (36) 17.3 μg/m3 (61) 61.0
 
Feb. 17, 2020, 11 p.m. 11.1 ppb (10) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 70.0 ppb (54) 0.3 ppb (3) 36.0 μg/m3 (33) 8.2 μg/m3 (34) 54.0
 
Feb. 17, 2020, 10 p.m. 9.6 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 67.0 ppb (52) 0.29 ppb (3) 32.0 μg/m3 (29) 6.5 μg/m3 (27) 52.0
 
Feb. 17, 2020, 9 p.m. 17.8 ppb (16) 2.8 ppb (3) N/A 15.0 ppb (14) N/A N/A 59.0 ppb (45) 0.43 ppb (5) 49.0 μg/m3 (45) 27.4 μg/m3 (83) 83.0
 
Feb. 17, 2020, 8 p.m. 10.6 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 63.0 ppb (48) 0.3 ppb (3) 32.0 μg/m3 (29) 17.3 μg/m3 (61) 61.0
 
Feb. 17, 2020, 7 p.m. 17.3 ppb (16) 3.2 ppb (3) N/A 14.0 ppb (13) N/A N/A 57.0 ppb (44) 0.33 ppb (4) 46.0 μg/m3 (42) 17.0 μg/m3 (61) 61.0
 
Feb. 17, 2020, 6 p.m. 43.1 ppb (40) 12.4 ppb (11) N/A 31.0 ppb (29) N/A N/A 36.0 ppb (28) 0.53 ppb (6) 56.0 μg/m3 (50) 28.6 μg/m3 (85) 85.0
 
Feb. 17, 2020, 5 p.m. 44.9 ppb (42) 14.4 ppb (13) N/A 31.0 ppb (29) N/A N/A 26.0 ppb (20) 0.61 ppb (7) 55.0 μg/m3 (50) 31.1 μg/m3 (91) 91.0
 
Feb. 17, 2020, 4 p.m. 30.8 ppb (29) 8.2 ppb (8) N/A 23.0 ppb (21) N/A N/A 27.0 ppb (21) 0.58 ppb (6) 55.0 μg/m3 (50) 32.8 μg/m3 (94) 94.0
 
Feb. 17, 2020, 3 p.m. 50.8 ppb (47) 18.8 ppb (17) N/A 32.0 ppb (30) N/A N/A 7.0 ppb (5) 0.76 ppb (8) 46.0 μg/m3 (42) 20.4 μg/m3 (68) 68.0
 
Feb. 17, 2020, 2 p.m. 42.8 ppb (40) 9.3 ppb (9) N/A 33.0 ppb (31) N/A N/A 2.0 ppb (2) 0.59 ppb (7) 39.0 μg/m3 (35) 21.1 μg/m3 (69) 69.0
 
Feb. 17, 2020, 1 p.m. 33.4 ppb (31) 3.6 ppb (3) N/A 30.0 ppb (28) N/A N/A 5.0 ppb (4) 0.55 ppb (6) 52.0 μg/m3 (47) 26.0 μg/m3 (80) 80.0
 
Feb. 17, 2020, noon 28.7 ppb (27) 2.2 ppb (2) N/A 27.0 ppb (25) N/A N/A 9.0 ppb (7) 0.57 ppb (6) 42.0 μg/m3 (38) 17.5 μg/m3 (62) 62.0
 
Feb. 17, 2020, 11 a.m. 20.6 ppb (19) 0.4 ppb (0) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (12) 0.48 ppb (5) 40.0 μg/m3 (36) 25.8 μg/m3 (79) 79.0
 
Feb. 17, 2020, 10 a.m. 21.4 ppb (20) 0.5 ppb (0) N/A 21.0 ppb (19) N/A N/A 15.0 ppb (12) 0.61 ppb (7) 44.0 μg/m3 (40) 20.9 μg/m3 (69) 69.0
 
Feb. 17, 2020, 9 a.m. 23.0 ppb (21) 1.2 ppb (1) N/A 22.0 ppb (20) N/A N/A 15.0 ppb (12) 0.6 ppb (7) 39.0 μg/m3 (35) 18.9 μg/m3 (65) 65.0
 
Feb. 17, 2020, 8 a.m. 28.3 ppb (26) 1.6 ppb (1) N/A 27.0 ppb (25) N/A N/A 10.0 ppb (8) 0.65 ppb (7) 43.0 μg/m3 (39) 24.6 μg/m3 (77) 77.0
 
Feb. 17, 2020, 7 a.m. 32.8 ppb (30) 2.3 ppb (2) N/A 31.0 ppb (29) N/A N/A 11.0 ppb (8) 0.68 ppb (8) 44.0 μg/m3 (40) 24.8 μg/m3 (77) 77.0
 
Feb. 17, 2020, 6 a.m. 29.8 ppb (28) 2.3 ppb (2) N/A 27.0 ppb (25) N/A N/A 12.0 ppb (9) 0.62 ppb (7) 36.0 μg/m3 (33) 27.1 μg/m3 (82) 82.0
 
Feb. 17, 2020, 5 a.m. 23.7 ppb (22) 0.7 ppb (1) N/A 23.0 ppb (21) N/A N/A 22.0 ppb (17) 0.52 ppb (6) 43.0 μg/m3 (39) 15.1 μg/m3 (57) 57.0
 
Feb. 17, 2020, 4 a.m. 19.3 ppb (18) 0.2 ppb (0) N/A 19.0 ppb (18) N/A N/A 33.0 ppb (25) 0.45 ppb (5) 38.0 μg/m3 (35) 17.5 μg/m3 (62) 62.0
 
Feb. 17, 2020, 3 a.m. 18.5 ppb (17) 0.4 ppb (0) N/A 18.0 ppb (17) N/A N/A 39.0 ppb (30) 0.38 ppb (4) 41.0 μg/m3 (37) 11.3 μg/m3 (47) 47.0
 
Feb. 17, 2020, 2 a.m. 15.0 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (13) N/A N/A 48.0 ppb (37) 0.36 ppb (4) 42.0 μg/m3 (38) 12.6 μg/m3 (51) 51.0
 
Feb. 17, 2020, 1 a.m. 12.4 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 65.0 ppb (50) 0.38 ppb (4) 39.0 μg/m3 (35) 21.4 μg/m3 (70) 70.0
 
Feb. 17, 2020, midnight 9.2 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 76.0 ppb (59) 0.36 ppb (4) 37.0 μg/m3 (34) 18.0 μg/m3 (63) 63.0
 
Feb. 16, 2020, 11 p.m. 8.4 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 75.0 ppb (58) 0.35 ppb (4) 37.0 μg/m3 (34) 19.2 μg/m3 (65) 65.0
 
Feb. 16, 2020, 10 p.m. 6.7 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 73.0 ppb (57) 0.29 ppb (3) 31.0 μg/m3 (28) 9.4 μg/m3 (39) 57.0
 
Feb. 16, 2020, 9 p.m. 5.4 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 71.0 ppb (55) 0.26 ppb (3) 29.0 μg/m3 (26) 9.0 μg/m3 (38) 55.0
 
Feb. 16, 2020, 8 p.m. 9.2 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 63.0 ppb (48) 0.3 ppb (3) 39.0 μg/m3 (35) 21.0 μg/m3 (69) 69.0
 
Feb. 16, 2020, 7 p.m. 13.6 ppb (13) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A 55.0 ppb (42) 0.35 ppb (4) 39.0 μg/m3 (35) 25.6 μg/m3 (79) 79.0
 
Feb. 16, 2020, 6 p.m. 18.6 ppb (17) 4.0 ppb (4) N/A 15.0 ppb (14) N/A N/A 44.0 ppb (34) 0.39 ppb (4) 41.0 μg/m3 (37) 31.9 μg/m3 (92) 92.0
 
Feb. 16, 2020, 5 p.m. 22.2 ppb (21) 5.9 ppb (5) N/A 16.0 ppb (15) N/A N/A 33.0 ppb (25) 0.44 ppb (5) 41.0 μg/m3 (37) 22.3 μg/m3 (72) 72.0
 
Feb. 16, 2020, 4 p.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A N/A 34.0 ppb (26) 0.35 ppb (4) 37.0 μg/m3 (34) 21.4 μg/m3 (70) 70.0
 
Feb. 16, 2020, 3 p.m. 33.1 ppb (31) 9.1 ppb (8) N/A 24.0 ppb (22) N/A N/A 11.0 ppb (8) 0.54 ppb (6) 38.0 μg/m3 (35) 10.9 μg/m3 (45) 45.0
 
Feb. 16, 2020, 2 p.m. 26.0 ppb (24) 3.3 ppb (3) N/A 23.0 ppb (21) N/A N/A 8.0 ppb (6) 0.44 ppb (5) 33.0 μg/m3 (30) 13.8 μg/m3 (54) 54.0
 
Feb. 16, 2020, 1 p.m. 20.2 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (9) 0.41 ppb (5) 36.0 μg/m3 (33) 13.8 μg/m3 (54) 54.0
 
Feb. 16, 2020, noon 19.1 ppb (18) 0.4 ppb (0) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (11) 0.41 ppb (5) 35.0 μg/m3 (32) 13.9 μg/m3 (54) 54.0
 
Feb. 16, 2020, 11 a.m. 24.4 ppb (23) 0.5 ppb (0) N/A 24.0 ppb (22) N/A N/A 10.0 ppb (8) 0.48 ppb (5) 44.0 μg/m3 (40) 20.9 μg/m3 (69) 69.0
 
Feb. 16, 2020, 10 a.m. 26.0 ppb (24) 1.1 ppb (1) N/A 25.0 ppb (23) N/A N/A 9.0 ppb (7) 0.57 ppb (6) 46.0 μg/m3 (42) 16.6 μg/m3 (60) 60.0
 
Feb. 16, 2020, 9 a.m. 25.6 ppb (24) 1.8 ppb (2) N/A 24.0 ppb (22) N/A N/A 10.0 ppb (8) 0.52 ppb (6) 40.0 μg/m3 (36) 14.6 μg/m3 (56) 56.0
 
Feb. 16, 2020, 8 a.m. 28.1 ppb (26) 2.0 ppb (2) N/A 26.0 ppb (24) N/A N/A 10.0 ppb (8) 0.64 ppb (7) 44.0 μg/m3 (40) 18.0 μg/m3 (63) 63.0
 
Feb. 16, 2020, 7 a.m. 31.6 ppb (29) 3.3 ppb (3) N/A 28.0 ppb (26) N/A N/A 10.0 ppb (8) 0.69 ppb (8) 46.0 μg/m3 (42) 22.1 μg/m3 (71) 71.0
 
Feb. 16, 2020, 6 a.m. 32.4 ppb (30) 2.1 ppb (2) N/A 30.0 ppb (28) N/A N/A 12.0 ppb (9) 0.65 ppb (7) 48.0 μg/m3 (44) 25.1 μg/m3 (78) 78.0
 
Feb. 16, 2020, 5 a.m. 24.4 ppb (23) 1.5 ppb (1) N/A 23.0 ppb (21) N/A N/A 23.0 ppb (18) 0.53 ppb (6) 45.0 μg/m3 (41) 14.4 μg/m3 (55) 55.0
 
Feb. 16, 2020, 4 a.m. 21.2 ppb (20) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 31.0 ppb (24) 0.48 ppb (5) 42.0 μg/m3 (38) 16.1 μg/m3 (59) 59.0
 
Feb. 16, 2020, 3 a.m. 20.8 ppb (19) 0.3 ppb (0) N/A 21.0 ppb (19) N/A N/A 34.0 ppb (26) 0.44 ppb (5) 40.0 μg/m3 (36) 15.9 μg/m3 (58) 58.0
 
Feb. 16, 2020, 2 a.m. 17.5 ppb (16) 0.4 ppb (0) N/A 17.0 ppb (16) N/A N/A 44.0 ppb (34) 0.41 ppb (5) 45.0 μg/m3 (41) 15.9 μg/m3 (58) 58.0
 
Feb. 16, 2020, 1 a.m. 17.9 ppb (17) 1.2 ppb (1) N/A 17.0 ppb (16) N/A N/A 57.0 ppb (44) 0.38 ppb (4) 39.0 μg/m3 (35) 21.7 μg/m3 (71) 71.0
 
Feb. 16, 2020, midnight 8.9 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 65.0 ppb (50) 0.29 ppb (3) 32.0 μg/m3 (29) 13.7 μg/m3 (54) 54.0
 
Feb. 15, 2020, 11 p.m. 8.7 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 63.0 ppb (48) 0.28 ppb (3) 32.0 μg/m3 (29) 13.4 μg/m3 (53) 53.0
 
Feb. 15, 2020, 10 p.m. 9.5 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 61.0 ppb (47) 0.28 ppb (3) 31.0 μg/m3 (28) 11.2 μg/m3 (47) 47.0
 
Feb. 15, 2020, 9 p.m. 8.4 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 62.0 ppb (48) 0.27 ppb (3) 28.0 μg/m3 (25) 17.8 μg/m3 (62) 62.0
 
Feb. 15, 2020, 8 p.m. 11.3 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 58.0 ppb (45) 0.29 ppb (3) 33.0 μg/m3 (30) 20.0 μg/m3 (67) 67.0
 
Feb. 15, 2020, 7 p.m. 16.6 ppb (15) 3.3 ppb (3) N/A 13.0 ppb (12) N/A N/A 49.0 ppb (38) 0.31 ppb (3) 51.0 μg/m3 (46) 28.8 μg/m3 (86) 86.0
 
Feb. 15, 2020, 6 p.m. 33.0 ppb (31) 9.7 ppb (9) N/A 23.0 ppb (21) N/A N/A 33.0 ppb (25) 0.45 ppb (5) 43.0 μg/m3 (39) 24.8 μg/m3 (77) 77.0
 
Feb. 15, 2020, 5 p.m. 21.2 ppb (20) 5.4 ppb (5) N/A 16.0 ppb (15) N/A N/A 34.0 ppb (26) 0.38 ppb (4) 38.0 μg/m3 (35) 10.6 μg/m3 (44) 44.0
 
Feb. 15, 2020, 4 p.m. 23.3 ppb (22) 6.0 ppb (6) N/A 17.0 ppb (16) N/A N/A 27.0 ppb (21) 0.39 ppb (4) 36.0 μg/m3 (33) 17.2 μg/m3 (61) 61.0
 
Feb. 15, 2020, 3 p.m. 47.0 ppb (44) 17.5 ppb (16) N/A 29.0 ppb (27) N/A N/A 8.0 ppb (6) 0.67 ppb (7) 36.0 μg/m3 (33) 12.1 μg/m3 (50) 50.0
 
Feb. 15, 2020, 2 p.m. 34.2 ppb (32) 5.9 ppb (5) N/A 28.0 ppb (26) N/A N/A 6.0 ppb (5) 0.46 ppb (5) 30.0 μg/m3 (27) 13.1 μg/m3 (52) 52.0
 
Feb. 15, 2020, 1 p.m. 26.3 ppb (24) 1.8 ppb (2) N/A 25.0 ppb (23) N/A N/A 7.0 ppb (5) 0.4 ppb (4) 28.0 μg/m3 (25) 16.5 μg/m3 (60) 60.0
 
Feb. 15, 2020, noon 22.4 ppb (21) 0.7 ppb (1) N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) 0.38 ppb (4) 32.0 μg/m3 (29) 9.1 μg/m3 (38) 38.0
 
Feb. 15, 2020, 11 a.m. 23.8 ppb (22) 1.0 ppb (1) N/A 23.0 ppb (21) N/A N/A 9.0 ppb (7) 0.45 ppb (5) 33.0 μg/m3 (30) 11.1 μg/m3 (46) 46.0
 
Feb. 15, 2020, 10 a.m. 24.8 ppb (23) 1.4 ppb (1) N/A 23.0 ppb (21) N/A N/A 9.0 ppb (7) 0.53 ppb (6) 45.0 μg/m3 (41) 12.6 μg/m3 (51) 51.0
 
Feb. 15, 2020, 9 a.m. 37.4 ppb (35) 3.2 ppb (3) N/A 34.0 ppb (31) N/A N/A 3.0 ppb (2) 0.58 ppb (6) 51.0 μg/m3 (46) 14.1 μg/m3 (54) 54.0
 
Feb. 15, 2020, 8 a.m. 37.3 ppb (35) 4.5 ppb (4) N/A 33.0 ppb (31) N/A N/A 4.0 ppb (3) 0.61 ppb (7) 43.0 μg/m3 (39) 12.6 μg/m3 (51) 51.0
 
Feb. 15, 2020, 7 a.m. 40.9 ppb (38) 7.1 ppb (7) N/A 34.0 ppb (31) N/A N/A 4.0 ppb (3) 0.65 ppb (7) 44.0 μg/m3 (40) 12.4 μg/m3 (51) 51.0
 
Feb. 15, 2020, 6 a.m. 39.4 ppb (36) 4.2 ppb (4) N/A 35.0 ppb (32) N/A N/A 7.0 ppb (5) 0.67 ppb (7) 49.0 μg/m3 (45) 13.9 μg/m3 (54) 54.0
 
Feb. 15, 2020, 5 a.m. 28.3 ppb (26) 2.6 ppb (2) N/A 26.0 ppb (24) N/A N/A 18.0 ppb (14) 0.51 ppb (6) 46.0 μg/m3 (42) 17.8 μg/m3 (62) 62.0
 
Feb. 15, 2020, 4 a.m. 26.5 ppb (25) 1.1 ppb (1) N/A 25.0 ppb (23) N/A N/A 26.0 ppb (20) 0.46 ppb (5) 42.0 μg/m3 (38) 10.4 μg/m3 (43) 43.0
 
Feb. 15, 2020, 3 a.m. 23.0 ppb (21) 0.9 ppb (1) N/A 22.0 ppb (20) N/A N/A 33.0 ppb (25) 0.41 ppb (5) 42.0 μg/m3 (38) 8.4 μg/m3 (35) 38.0
 
Feb. 15, 2020, 2 a.m. 21.4 ppb (20) 0.7 ppb (1) N/A 21.0 ppb (19) N/A N/A 34.0 ppb (26) 0.35 ppb (4) 47.0 μg/m3 (43) 6.0 μg/m3 (25) 43.0
 
Feb. 15, 2020, 1 a.m. 22.7 ppb (21) 0.9 ppb (1) N/A 22.0 ppb (20) N/A N/A 42.0 ppb (32) 0.39 ppb (4) 43.0 μg/m3 (39) 3.2 μg/m3 (13) 39.0
 
Feb. 15, 2020, midnight 20.5 ppb (19) 1.5 ppb (1) N/A 19.0 ppb (18) N/A N/A 48.0 ppb (37) 0.39 ppb (4) 48.0 μg/m3 (44) 16.1 μg/m3 (59) 59.0
 
Feb. 14, 2020, 11 p.m. 17.4 ppb (16) 2.4 ppb (2) N/A 15.0 ppb (14) N/A N/A 50.0 ppb (38) 0.36 ppb (4) 39.0 μg/m3 (35) 16.8 μg/m3 (60) 60.0
 
Feb. 14, 2020, 10 p.m. 15.1 ppb (14) 2.6 ppb (2) N/A 12.0 ppb (11) N/A N/A 51.0 ppb (39) 0.33 ppb (4) 36.0 μg/m3 (33) 16.8 μg/m3 (60) 60.0
 
Feb. 14, 2020, 9 p.m. 20.3 ppb (19) 4.6 ppb (4) N/A 16.0 ppb (15) N/A N/A 45.0 ppb (35) 0.32 ppb (4) 38.0 μg/m3 (35) 10.4 μg/m3 (43) 43.0
 
Feb. 14, 2020, 8 p.m. 16.7 ppb (15) 3.7 ppb (3) N/A 13.0 ppb (12) N/A N/A 48.0 ppb (37) 0.3 ppb (3) 41.0 μg/m3 (37) 13.1 μg/m3 (52) 52.0
 
Feb. 14, 2020, 7 p.m. 28.2 ppb (26) 7.7 ppb (7) N/A 20.0 ppb (19) N/A N/A 38.0 ppb (29) 0.34 ppb (4) 45.0 μg/m3 (41) 11.4 μg/m3 (48) 48.0
 
Feb. 14, 2020, 6 p.m. 43.1 ppb (40) 15.3 ppb (14) N/A 28.0 ppb (26) N/A N/A 26.0 ppb (20) 0.44 ppb (5) 42.0 μg/m3 (38) 24.6 μg/m3 (77) 77.0
 
Feb. 14, 2020, 5 p.m. 22.9 ppb (21) 6.7 ppb (6) N/A 16.0 ppb (15) N/A N/A 29.0 ppb (22) 0.37 ppb (4) 36.0 μg/m3 (33) 15.6 μg/m3 (58) 58.0
 
Feb. 14, 2020, 4 p.m. 35.5 ppb (33) 11.6 ppb (11) N/A 24.0 ppb (22) N/A N/A 19.0 ppb (15) 0.48 ppb (5) 44.0 μg/m3 (40) 19.1 μg/m3 (65) 65.0
 
Feb. 14, 2020, 3 p.m. 67.3 ppb (64) 33.9 ppb (31) N/A 33.0 ppb (31) N/A N/A 4.0 ppb (3) 0.88 ppb (10) 53.0 μg/m3 (48) 14.8 μg/m3 (56) 64.0
 
Feb. 14, 2020, 2 p.m. 59.8 ppb (56) 25.8 ppb (24) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) 0.67 ppb (7) 46.0 μg/m3 (42) 15.3 μg/m3 (57) 57.0
 
Feb. 14, 2020, 1 p.m. 52.9 ppb (49) 17.8 ppb (16) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.56 ppb (6) 40.0 μg/m3 (36) 18.0 μg/m3 (63) 63.0
 
Feb. 14, 2020, noon 35.1 ppb (32) 3.9 ppb (4) N/A 31.0 ppb (29) N/A N/A 3.0 ppb (2) 0.44 ppb (5) 33.0 μg/m3 (30) 8.6 μg/m3 (36) 36.0
 
Feb. 14, 2020, 11 a.m. 27.5 ppb (25) 1.3 ppb (1) N/A 26.0 ppb (24) N/A N/A 7.0 ppb (5) 0.35 ppb (4) 31.0 μg/m3 (28) 9.1 μg/m3 (38) 38.0
 
Feb. 14, 2020, 10 a.m. 39.5 ppb (37) 5.1 ppb (5) N/A 34.0 ppb (31) N/A N/A 2.0 ppb (2) 0.52 ppb (6) 66.0 μg/m3 (56) 11.1 μg/m3 (46) 56.0
 
Feb. 14, 2020, 9 a.m. 37.2 ppb (34) 3.9 ppb (4) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) 0.55 ppb (6) 55.0 μg/m3 (50) 11.9 μg/m3 (50) 50.0
 
Feb. 14, 2020, 8 a.m. 33.9 ppb (31) 1.7 ppb (2) N/A 32.0 ppb (30) N/A N/A 6.0 ppb (5) 0.51 ppb (6) 37.0 μg/m3 (34) 14.1 μg/m3 (54) 54.0
 
Feb. 14, 2020, 7 a.m. 36.4 ppb (34) 3.6 ppb (3) N/A 33.0 ppb (31) N/A N/A 7.0 ppb (5) 0.68 ppb (8) 47.0 μg/m3 (43) 13.6 μg/m3 (53) 53.0
 
Feb. 14, 2020, 6 a.m. 50.1 ppb (46) 14.2 ppb (13) N/A 36.0 ppb (33) N/A N/A 3.0 ppb (2) 0.77 ppb (9) 48.0 μg/m3 (44) 19.0 μg/m3 (65) 65.0
 
Feb. 14, 2020, 5 a.m. 49.2 ppb (46) 10.2 ppb (9) N/A 39.0 ppb (36) N/A N/A 3.0 ppb (2) 0.72 ppb (8) 52.0 μg/m3 (47) 7.7 μg/m3 (32) 47.0