ID: 194

AQSQID: 060711004

Site Name: Upland

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

Updated: April 11, 2021, 6:43 a.m.

Location: Upland (Los Olivos), CA

Reporting: True, Located: True

Current AQI: 43.0

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
April 4, 2021, 5 a.m. 20.8 ppb (20) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 26.0 ppb (25) 0.5 ppb (6) 46.6 μg/m3 (44) 18.3 μg/m3 (65) 65.0
 
April 4, 2021, 4 a.m. 16.7 ppb (16) 0.4 ppb (1) N/A 16.0 ppb (16) N/A N/A 36.0 ppb (34) 0.42 ppb (5) 39.5 μg/m3 (37) 16.6 μg/m3 (61) 61.0
 
April 4, 2021, 3 a.m. 12.8 ppb (13) 0.4 ppb (1) N/A 12.0 ppb (12) N/A N/A 48.0 ppb (45) 0.33 ppb (4) 38.1 μg/m3 (36) 9.0 μg/m3 (38) 45.0
 
April 4, 2021, 2 a.m. 10.1 ppb (10) 0.8 ppb (1) N/A 9.0 ppb (9) N/A N/A 59.0 ppb (65) 0.3 ppb (4) 43.9 μg/m3 (41) 26.6 μg/m3 (82) 82.0
 
April 4, 2021, 1 a.m. 8.9 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 80.0 ppb (106) 0.33 ppb (4) 55.9 μg/m3 (52) 25.9 μg/m3 (81) 106.0
 
April 4, 2021, midnight 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 87.0 ppb (110) 0.33 ppb (4) 49.5 μg/m3 (46) 20.8 μg/m3 (70) 110.0
 
April 3, 2021, 11 p.m. 10.3 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 86.0 ppb (109) 0.35 ppb (4) 52.4 μg/m3 (49) 17.8 μg/m3 (63) 109.0
 
April 3, 2021, 10 p.m. 7.3 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 86.0 ppb (109) 0.33 ppb (4) 49.0 μg/m3 (46) 16.2 μg/m3 (60) 109.0
 
April 3, 2021, 9 p.m. 7.8 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 80.0 ppb (106) 0.33 ppb (4) 40.5 μg/m3 (38) 6.8 μg/m3 (29) 106.0
 
April 3, 2021, 8 p.m. 12.3 ppb (12) 1.7 ppb (2) N/A 11.0 ppb (11) N/A N/A 71.0 ppb (101) 0.4 ppb (5) 52.2 μg/m3 (49) 21.0 μg/m3 (70) 101.0
 
April 3, 2021, 7 p.m. 16.2 ppb (16) 2.3 ppb (3) N/A 14.0 ppb (14) N/A N/A 69.0 ppb (97) 0.39 ppb (5) 48.0 μg/m3 (45) 26.3 μg/m3 (81) 97.0
 
April 3, 2021, 6 p.m. 19.4 ppb (19) 3.3 ppb (4) N/A 16.0 ppb (16) N/A N/A 60.0 ppb (68) 0.38 ppb (5) 55.8 μg/m3 (52) 19.5 μg/m3 (67) 68.0
 
April 3, 2021, 5 p.m. 38.6 ppb (37) 10.6 ppb (10) N/A 28.0 ppb (27) N/A N/A 34.0 ppb (32) 0.53 ppb (6) 59.1 μg/m3 (54) 31.2 μg/m3 (92) 92.0
 
April 3, 2021, 4 p.m. 40.6 ppb (39) 13.0 ppb (13) N/A 28.0 ppb (27) N/A N/A 25.0 ppb (24) 0.55 ppb (7) 53.7 μg/m3 (50) 23.4 μg/m3 (75) 75.0
 
April 3, 2021, 3 p.m. 50.0 ppb (48) 19.2 ppb (19) N/A 31.0 ppb (30) N/A N/A 14.0 ppb (13) 0.62 ppb (7) 56.1 μg/m3 (52) 29.1 μg/m3 (87) 87.0
 
April 3, 2021, 2 p.m. 38.1 ppb (36) 11.5 ppb (11) N/A 27.0 ppb (26) N/A N/A 9.0 ppb (9) 0.66 ppb (8) 43.0 μg/m3 (40) 17.8 μg/m3 (63) 63.0
 
April 3, 2021, 1 p.m. 33.2 ppb (32) 5.4 ppb (6) N/A 28.0 ppb (27) N/A N/A 4.0 ppb (4) 0.75 ppb (10) 120.6 μg/m3 (84) 23.7 μg/m3 (76) 84.0
 
April 3, 2021, noon 25.0 ppb (24) 1.5 ppb (2) N/A 24.0 ppb (23) N/A N/A 7.0 ppb (7) 0.57 ppb (7) 42.5 μg/m3 (40) 9.7 μg/m3 (41) 41.0
 
April 3, 2021, 11 a.m. 20.4 ppb (20) 1.2 ppb (2) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (12) 0.4 ppb (5) 36.4 μg/m3 (34) 16.6 μg/m3 (61) 61.0
 
April 3, 2021, 10 a.m. 21.2 ppb (20) 1.1 ppb (2) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (12) 0.45 ppb (6) 36.8 μg/m3 (35) 14.9 μg/m3 (57) 57.0
 
April 3, 2021, 9 a.m. 28.5 ppb (27) 4.7 ppb (5) N/A 24.0 ppb (23) N/A N/A 5.0 ppb (5) 0.61 ppb (7) 35.6 μg/m3 (33) 15.1 μg/m3 (58) 58.0
 
April 3, 2021, 8 a.m. 20.7 ppb (20) 1.5 ppb (2) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (10) 0.47 ppb (6) 41.3 μg/m3 (39) 14.2 μg/m3 (56) 56.0
 
April 3, 2021, 7 a.m. 20.8 ppb (20) 1.4 ppb (2) N/A 19.0 ppb (18) N/A N/A 13.0 ppb (13) 0.47 ppb (6) 37.6 μg/m3 (35) 13.9 μg/m3 (55) 55.0
 
April 3, 2021, 6 a.m. 21.2 ppb (20) 1.4 ppb (2) N/A 20.0 ppb (19) N/A N/A 16.0 ppb (15) 0.49 ppb (6) 40.8 μg/m3 (38) 14.1 μg/m3 (56) 56.0
 
April 3, 2021, 5 a.m. 18.0 ppb (17) 0.5 ppb (1) N/A 18.0 ppb (17) N/A N/A 30.0 ppb (28) 0.35 ppb (4) 35.6 μg/m3 (33) 10.5 μg/m3 (44) 44.0
 
April 3, 2021, 4 a.m. 14.1 ppb (14) 0.4 ppb (1) N/A 14.0 ppb (14) N/A N/A 38.0 ppb (36) 0.32 ppb (4) 39.8 μg/m3 (37) 4.8 μg/m3 (20) 37.0
 
April 3, 2021, 3 a.m. 12.5 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 45.0 ppb (42) 0.29 ppb (4) 42.0 μg/m3 (39) 7.5 μg/m3 (32) 42.0
 
April 3, 2021, 2 a.m. 11.1 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 54.0 ppb (50) 0.28 ppb (4) 41.3 μg/m3 (39) 10.2 μg/m3 (43) 50.0
 
April 3, 2021, 1 a.m. 7.9 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 66.0 ppb (87) 0.27 ppb (4) 42.2 μg/m3 (40) 10.7 μg/m3 (45) 87.0
 
April 3, 2021, midnight 6.6 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 73.0 ppb (103) 0.27 ppb (4) 45.3 μg/m3 (42) 11.7 μg/m3 (49) 103.0
 
April 2, 2021, 11 p.m. 6.5 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 78.0 ppb (105) 0.26 ppb (4) 49.0 μg/m3 (46) 17.3 μg/m3 (62) 105.0
 
April 2, 2021, 10 p.m. 6.8 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 82.0 ppb (107) 0.27 ppb (4) 40.7 μg/m3 (38) 12.2 μg/m3 (52) 107.0
 
April 2, 2021, 9 p.m. 8.0 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 75.0 ppb (104) 0.27 ppb (4) 38.1 μg/m3 (36) 10.0 μg/m3 (42) 104.0
 
April 2, 2021, 8 p.m. 10.7 ppb (11) 1.8 ppb (2) N/A 9.0 ppb (9) N/A N/A 65.0 ppb (84) 0.29 ppb (4) 39.3 μg/m3 (37) 16.1 μg/m3 (60) 84.0
 
April 2, 2021, 7 p.m. 13.5 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (11) N/A N/A 54.0 ppb (50) 0.31 ppb (4) 44.6 μg/m3 (42) 15.1 μg/m3 (58) 58.0
 
April 2, 2021, 6 p.m. 15.6 ppb (15) 3.7 ppb (4) N/A 12.0 ppb (12) N/A N/A 46.0 ppb (43) 0.33 ppb (4) 34.9 μg/m3 (33) 21.0 μg/m3 (70) 70.0
 
April 2, 2021, 5 p.m. 23.5 ppb (23) 6.5 ppb (7) N/A 17.0 ppb (17) N/A N/A 36.0 ppb (34) 0.36 ppb (5) 38.3 μg/m3 (36) 10.2 μg/m3 (43) 43.0
 
April 2, 2021, 4 p.m. 23.8 ppb (23) 6.2 ppb (6) N/A 18.0 ppb (17) N/A N/A 34.0 ppb (32) 0.37 ppb (5) 37.4 μg/m3 (35) 9.0 μg/m3 (38) 38.0
 
April 2, 2021, 3 p.m. 31.3 ppb (30) 10.3 ppb (10) N/A 21.0 ppb (20) N/A N/A 27.0 ppb (25) 0.43 ppb (5) 45.8 μg/m3 (43) 11.2 μg/m3 (47) 47.0
 
April 2, 2021, 2 p.m. 63.7 ppb (62) 28.1 ppb (27) N/A 36.0 ppb (34) N/A N/A 5.0 ppb (5) 0.83 ppb (10) 55.2 μg/m3 (52) 6.5 μg/m3 (28) 62.0
 
April 2, 2021, 1 p.m. 47.3 ppb (45) 10.5 ppb (10) N/A 37.0 ppb (35) N/A N/A 2.0 ppb (2) 0.54 ppb (6) 32.1 μg/m3 (30) 4.8 μg/m3 (20) 45.0
 
April 2, 2021, noon 28.6 ppb (27) 1.5 ppb (2) N/A 27.0 ppb (26) N/A N/A 11.0 ppb (11) 0.38 ppb (5) 26.0 μg/m3 (25) 8.8 μg/m3 (37) 37.0
 
April 2, 2021, 11 a.m. 24.7 ppb (24) 1.0 ppb (1) N/A 24.0 ppb (23) N/A N/A 15.0 ppb (14) 0.46 ppb (6) 23.5 μg/m3 (22) 8.2 μg/m3 (35) 35.0
 
April 2, 2021, 10 a.m. 24.3 ppb (23) 0.9 ppb (1) N/A 23.0 ppb (22) N/A N/A 16.0 ppb (15) 0.4 ppb (5) 32.0 μg/m3 (30) 7.5 μg/m3 (32) 32.0
 
April 2, 2021, 9 a.m. 26.1 ppb (25) 0.9 ppb (1) N/A 25.0 ppb (24) N/A N/A 15.0 ppb (14) 0.38 ppb (5) 33.5 μg/m3 (32) 9.2 μg/m3 (39) 39.0
 
April 2, 2021, 8 a.m. 29.4 ppb (28) 1.4 ppb (2) N/A 28.0 ppb (27) N/A N/A 12.0 ppb (12) 0.43 ppb (5) 26.0 μg/m3 (25) 7.7 μg/m3 (33) 33.0
 
April 2, 2021, 7 a.m. 29.9 ppb (29) 1.1 ppb (2) N/A 29.0 ppb (28) N/A N/A 12.0 ppb (12) 0.44 ppb (5) 28.4 μg/m3 (27) 8.5 μg/m3 (36) 36.0
 
April 2, 2021, 6 a.m. 34.9 ppb (33) 4.5 ppb (5) N/A 30.0 ppb (29) N/A N/A 11.0 ppb (11) 0.82 ppb (10) 35.4 μg/m3 (33) 12.9 μg/m3 (53) 53.0
 
April 2, 2021, 5 a.m. 32.8 ppb (31) 2.8 ppb (3) N/A 30.0 ppb (29) N/A N/A 12.0 ppb (12) 0.53 ppb (6) 48.8 μg/m3 (46) 12.4 μg/m3 (52) 52.0
 
April 2, 2021, 4 a.m. 46.0 ppb (44) 7.2 ppb (7) N/A 39.0 ppb (37) N/A N/A 11.0 ppb (11) 0.62 ppb (7) 53.2 μg/m3 (50) 8.2 μg/m3 (35) 50.0
 
April 2, 2021, 3 a.m. 40.4 ppb (39) 2.0 ppb (2) N/A 38.0 ppb (36) N/A N/A 23.0 ppb (22) 0.57 ppb (7) 47.6 μg/m3 (45) 5.1 μg/m3 (22) 45.0
 
April 2, 2021, 2 a.m. 30.3 ppb (29) 2.8 ppb (3) N/A 28.0 ppb (27) N/A N/A 32.0 ppb (30) 0.46 ppb (6) 32.5 μg/m3 (31) 0.5 μg/m3 (3) 31.0
 
April 2, 2021, 1 a.m. 11.0 ppb (11) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 53.0 ppb (50) 0.26 ppb (4) 31.0 μg/m3 (29) 1.7 μg/m3 (8) 50.0
 
April 2, 2021, midnight 7.4 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 57.0 ppb (58) 0.22 ppb (3) 25.0 μg/m3 (24) 5.5 μg/m3 (23) 58.0
 
April 1, 2021, 11 p.m. 3.2 ppb (4) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) 0.18 ppb (3) 20.7 μg/m3 (20) -0.4 μg/m3 (0) 71.0
 
April 1, 2021, 10 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (74) 0.17 ppb (3) 17.7 μg/m3 (17) -1.4 μg/m3 (0) 74.0
 
April 1, 2021, 9 p.m. 20.3 ppb (20) 4.7 ppb (5) N/A 16.0 ppb (16) N/A N/A 46.0 ppb (43) 0.31 ppb (4) 33.9 μg/m3 (32) 2.5 μg/m3 (11) 43.0
 
April 1, 2021, 8 p.m. 31.8 ppb (30) 4.3 ppb (5) N/A 28.0 ppb (27) N/A N/A 31.0 ppb (29) 0.43 ppb (5) 39.3 μg/m3 (37) 4.8 μg/m3 (20) 37.0
 
April 1, 2021, 7 p.m. 32.6 ppb (31) 6.1 ppb (6) N/A 26.0 ppb (25) N/A N/A 32.0 ppb (30) 0.51 ppb (6) 64.8 μg/m3 (56) 6.0 μg/m3 (25) 56.0
 
April 1, 2021, 6 p.m. 28.8 ppb (28) 3.7 ppb (4) N/A 25.0 ppb (24) N/A N/A 34.0 ppb (32) 0.37 ppb (5) 40.5 μg/m3 (38) 5.8 μg/m3 (25) 38.0
 
April 1, 2021, 5 p.m. 29.3 ppb (28) 6.3 ppb (6) N/A 23.0 ppb (22) N/A N/A 35.0 ppb (33) 0.33 ppb (4) 34.4 μg/m3 (32) 6.0 μg/m3 (25) 33.0
 
April 1, 2021, 4 p.m. 26.9 ppb (26) 7.2 ppb (7) N/A 20.0 ppb (19) N/A N/A 34.0 ppb (32) 0.32 ppb (4) 33.7 μg/m3 (32) 6.8 μg/m3 (29) 32.0
 
April 1, 2021, 3 p.m. 28.2 ppb (27) 7.0 ppb (7) N/A 21.0 ppb (20) N/A N/A 29.0 ppb (27) 0.38 ppb (5) 35.9 μg/m3 (34) 6.5 μg/m3 (28) 34.0
 
April 1, 2021, 2 p.m. 35.7 ppb (34) 7.6 ppb (8) N/A 28.0 ppb (27) N/A N/A 18.0 ppb (17) 0.4 ppb (5) 31.1 μg/m3 (29) 2.0 μg/m3 (9) 34.0
 
April 1, 2021, 1 p.m. 29.6 ppb (28) 2.1 ppb (2) N/A 27.0 ppb (26) N/A N/A 18.0 ppb (17) 0.4 ppb (5) 25.2 μg/m3 (24) 0.2 μg/m3 (1) 28.0
 
April 1, 2021, noon 25.6 ppb (25) 1.4 ppb (2) N/A 24.0 ppb (23) N/A N/A 17.0 ppb (16) 0.37 ppb (5) 18.0 μg/m3 (17) 3.7 μg/m3 (16) 25.0
 
April 1, 2021, 11 a.m. 13.9 ppb (14) 0.6 ppb (1) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) 0.3 ppb (4) 28.1 μg/m3 (27) 6.8 μg/m3 (29) 29.0
 
April 1, 2021, 10 a.m. 12.2 ppb (12) 0.5 ppb (1) N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) 0.3 ppb (4) 35.1 μg/m3 (33) 6.0 μg/m3 (25) 33.0
 
April 1, 2021, 9 a.m. 11.2 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (11) N/A N/A 31.0 ppb (29) 0.28 ppb (4) 23.3 μg/m3 (22) 2.9 μg/m3 (13) 29.0
 
April 1, 2021, 8 a.m. 13.3 ppb (13) 1.2 ppb (2) N/A 12.0 ppb (12) N/A N/A 31.0 ppb (29) 0.31 ppb (4) 26.0 μg/m3 (25) -1.2 μg/m3 (0) 29.0
 
April 1, 2021, 7 a.m. 16.4 ppb (16) 0.5 ppb (1) N/A 16.0 ppb (16) N/A N/A 26.0 ppb (25) 0.34 ppb (4) 24.5 μg/m3 (23) -1.4 μg/m3 (0) 25.0
 
April 1, 2021, 6 a.m. 20.8 ppb (20) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 23.0 ppb (22) 0.36 ppb (5) 25.0 μg/m3 (24) 1.5 μg/m3 (7) 24.0
 
April 1, 2021, 5 a.m. 24.5 ppb (24) 1.5 ppb (2) N/A 23.0 ppb (22) N/A N/A 19.0 ppb (18) 0.47 ppb (6) 38.1 μg/m3 (36) 4.5 μg/m3 (19) 36.0
 
April 1, 2021, 4 a.m. 19.4 ppb (19) 1.1 ppb (2) N/A 18.0 ppb (17) N/A N/A 32.0 ppb (30) 0.37 ppb (5) 40.8 μg/m3 (38) 3.7 μg/m3 (16) 38.0
 
April 1, 2021, 3 a.m. 15.3 ppb (15) 0.7 ppb (1) N/A 15.0 ppb (15) N/A N/A 40.0 ppb (38) 0.31 ppb (4) 29.9 μg/m3 (28) 3.4 μg/m3 (15) 38.0
 
April 1, 2021, 2 a.m. 20.4 ppb (20) 2.2 ppb (3) N/A 18.0 ppb (17) N/A N/A 33.0 ppb (31) 0.41 ppb (5) 26.9 μg/m3 (25) 3.4 μg/m3 (15) 31.0
 
April 1, 2021, 1 a.m. 5.2 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (50) 0.21 ppb (3) 15.4 μg/m3 (15) -0.9 μg/m3 (0) 50.0
 
April 1, 2021, midnight 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) 0.2 ppb (3) 23.0 μg/m3 (22) 2.2 μg/m3 (10) 55.0
 
March 31, 2021, 11 p.m. 3.4 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.18 ppb (3) 20.5 μg/m3 (19) 3.4 μg/m3 (15) 58.0
 
March 31, 2021, 10 p.m. 3.1 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.18 ppb (3) 20.3 μg/m3 (19) -1.2 μg/m3 (0) 58.0
 
March 31, 2021, 9 p.m. 3.6 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) 0.18 ppb (3) 24.7 μg/m3 (23) 2.5 μg/m3 (11) 55.0
 
March 31, 2021, 8 p.m. 3.6 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (61) 0.18 ppb (3) 18.7 μg/m3 (18) 6.3 μg/m3 (27) 61.0
 
March 31, 2021, 7 p.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) 0.19 ppb (3) 14.9 μg/m3 (14) 3.6 μg/m3 (16) 55.0
 
March 31, 2021, 6 p.m. 3.9 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) 0.17 ppb (3) 16.9 μg/m3 (16) 1.5 μg/m3 (7) 49.0
 
March 31, 2021, 5 p.m. 9.1 ppb (9) 2.3 ppb (3) N/A 7.0 ppb (7) N/A N/A 47.0 ppb (44) 0.21 ppb (3) 21.3 μg/m3 (20) 1.0 μg/m3 (5) 44.0
 
March 31, 2021, 4 p.m. 13.5 ppb (13) 3.4 ppb (4) N/A 10.0 ppb (10) N/A N/A 41.0 ppb (38) 0.25 ppb (3) 27.4 μg/m3 (26) 3.7 μg/m3 (16) 38.0
 
March 31, 2021, 3 p.m. 32.1 ppb (31) 10.6 ppb (10) N/A 21.0 ppb (20) N/A N/A 25.0 ppb (24) 0.42 ppb (5) 33.2 μg/m3 (31) 6.8 μg/m3 (29) 31.0
 
March 31, 2021, 2 p.m. 43.8 ppb (42) 12.7 ppb (12) N/A 31.0 ppb (30) N/A N/A 11.0 ppb (11) 0.49 ppb (6) 46.0 μg/m3 (43) 3.2 μg/m3 (14) 43.0
 
March 31, 2021, 1 p.m. 29.5 ppb (28) 4.2 ppb (4) N/A 25.0 ppb (24) N/A N/A 16.0 ppb (15) 0.39 ppb (5) 23.3 μg/m3 (22) 2.5 μg/m3 (11) 28.0
 
March 31, 2021, noon 18.0 ppb (17) 2.1 ppb (2) N/A 16.0 ppb (16) N/A N/A 25.0 ppb (24) 0.29 ppb (4) 39.8 μg/m3 (37) 8.0 μg/m3 (34) 37.0
 
March 31, 2021, 11 a.m. 10.1 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) 0.28 ppb (4) 54.1 μg/m3 (51) 7.3 μg/m3 (31) 51.0
 
March 31, 2021, 10 a.m. 4.5 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.18 ppb (3) 24.0 μg/m3 (23) 7.3 μg/m3 (31) 38.0
 
March 31, 2021, 9 a.m. 12.7 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) 0.24 ppb (3) 27.9 μg/m3 (26) 12.9 μg/m3 (53) 53.0
 
March 31, 2021, 8 a.m. 17.0 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) 0.31 ppb (4) 32.3 μg/m3 (30) 15.9 μg/m3 (59) 59.0
 
March 31, 2021, 7 a.m. 27.2 ppb (26) 1.0 ppb (1) N/A 26.0 ppb (25) N/A N/A 11.0 ppb (11) 0.43 ppb (5) 42.2 μg/m3 (40) 16.4 μg/m3 (61) 61.0
 
March 31, 2021, 6 a.m. 29.6 ppb (28) 2.0 ppb (2) N/A 28.0 ppb (27) N/A N/A 8.0 ppb (8) 0.49 ppb (6) 52.9 μg/m3 (49) 18.5 μg/m3 (65) 65.0
 
March 31, 2021, 5 a.m. 29.4 ppb (28) 1.0 ppb (1) N/A 28.0 ppb (27) N/A N/A 15.0 ppb (14) 0.43 ppb (5) 51.9 μg/m3 (49) 23.7 μg/m3 (76) 76.0
 
March 31, 2021, 4 a.m. 28.9 ppb (28) 1.1 ppb (2) N/A 28.0 ppb (27) N/A N/A 22.0 ppb (21) 0.39 ppb (5) 53.1 μg/m3 (50) 13.9 μg/m3 (55) 55.0
 
March 31, 2021, 3 a.m. 26.8 ppb (26) 1.0 ppb (1) N/A 26.0 ppb (25) N/A N/A 27.0 ppb (25) 0.38 ppb (5) 54.4 μg/m3 (51) 15.7 μg/m3 (59) 59.0
 
March 31, 2021, 2 a.m. 24.9 ppb (24) 0.8 ppb (1) N/A 24.0 ppb (23) N/A N/A 33.0 ppb (31) 0.37 ppb (5) 57.7 μg/m3 (53) 19.8 μg/m3 (68) 68.0
 
March 31, 2021, 1 a.m. 17.3 ppb (17) 0.8 ppb (1) N/A 16.0 ppb (16) N/A N/A 57.0 ppb (58) 0.34 ppb (4) 57.7 μg/m3 (53) 16.4 μg/m3 (61) 61.0
 
March 31, 2021, midnight 9.8 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 68.0 ppb (94) 0.28 ppb (4) 59.6 μg/m3 (54) 10.5 μg/m3 (44) 94.0
 
March 30, 2021, 11 p.m. 8.4 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 68.0 ppb (94) 0.26 ppb (4) 63.7 μg/m3 (56) 12.9 μg/m3 (53) 94.0
 
March 30, 2021, 10 p.m. 8.2 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 67.0 ppb (91) 0.26 ppb (4) 60.3 μg/m3 (54) 11.2 μg/m3 (47) 91.0
 
March 30, 2021, 9 p.m. 8.9 ppb (9) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 61.0 ppb (71) 0.27 ppb (4) 46.5 μg/m3 (44) 9.0 μg/m3 (38) 71.0
 
March 30, 2021, 8 p.m. 13.8 ppb (14) 2.8 ppb (3) N/A 11.0 ppb (11) N/A N/A 53.0 ppb (50) 0.31 ppb (4) 43.7 μg/m3 (41) 19.0 μg/m3 (66) 66.0
 
March 30, 2021, 7 p.m. 14.8 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (12) N/A N/A 53.0 ppb (50) 0.32 ppb (4) 40.8 μg/m3 (38) 18.3 μg/m3 (65) 65.0
 
March 30, 2021, 6 p.m. 19.1 ppb (19) 4.8 ppb (5) N/A 14.0 ppb (14) N/A N/A 41.0 ppb (38) 0.37 ppb (5) 46.8 μg/m3 (44) 13.1 μg/m3 (54) 54.0
 
March 30, 2021, 5 p.m. 32.2 ppb (31) 10.9 ppb (11) N/A 21.0 ppb (20) N/A N/A 27.0 ppb (25) 0.52 ppb (6) 50.0 μg/m3 (47) 18.3 μg/m3 (65) 65.0
 
March 30, 2021, 4 p.m. 60.9 ppb (59) 28.5 ppb (27) N/A 32.0 ppb (31) N/A N/A 14.0 ppb (13) 0.62 ppb (7) 56.3 μg/m3 (52) 26.6 μg/m3 (82) 82.0
 
March 30, 2021, 3 p.m. 75.4 ppb (74) 40.6 ppb (39) N/A 35.0 ppb (34) N/A N/A 7.0 ppb (7) 0.69 ppb (8) 53.7 μg/m3 (50) 28.4 μg/m3 (86) 86.0
 
March 30, 2021, 2 p.m. 61.5 ppb (59) 30.1 ppb (29) N/A 31.0 ppb (30) N/A N/A 4.0 ppb (4) 0.71 ppb (8) 43.9 μg/m3 (41) 17.8 μg/m3 (63) 63.0
 
March 30, 2021, 1 p.m. 49.6 ppb (47) 17.8 ppb (17) N/A 32.0 ppb (31) N/A N/A 1.0 ppb (1) 0.64 ppb (7) 38.8 μg/m3 (36) 10.7 μg/m3 (45) 47.0
 
March 30, 2021, noon 36.7 ppb (35) 7.3 ppb (7) N/A 29.0 ppb (28) N/A N/A 2.0 ppb (2) 0.52 ppb (6) 33.7 μg/m3 (32) 10.2 μg/m3 (43) 43.0
 
March 30, 2021, 11 a.m. 22.2 ppb (21) 2.0 ppb (2) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (11) 0.39 ppb (5) 25.5 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
March 30, 2021, 10 a.m. 22.4 ppb (22) 2.3 ppb (3) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (10) 0.4 ppb (5) 26.7 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
March 30, 2021, 9 a.m. 22.3 ppb (22) 1.1 ppb (2) N/A 21.0 ppb (20) N/A N/A 10.0 ppb (10) 0.38 ppb (5) 24.5 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
March 30, 2021, 8 a.m. 19.9 ppb (19) 2.6 ppb (3) N/A 17.0 ppb (17) N/A N/A 16.0 ppb (15) 0.34 ppb (4) 26.2 μg/m3 (25) 10.5 μg/m3 (44) 44.0
 
March 30, 2021, 7 a.m. 13.2 ppb (13) 0.5 ppb (1) N/A 13.0 ppb (13) N/A N/A 28.0 ppb (26) 0.32 ppb (4) 34.2 μg/m3 (32) 11.7 μg/m3 (49) 49.0
 
March 30, 2021, 6 a.m. 18.5 ppb (18) 1.4 ppb (2) N/A 17.0 ppb (17) N/A N/A 25.0 ppb (24) 0.34 ppb (4) 25.5 μg/m3 (24) 11.6 μg/m3 (49) 49.0
 
March 30, 2021, 5 a.m. 17.2 ppb (17) 0.5 ppb (1) N/A 17.0 ppb (17) N/A N/A 28.0 ppb (26) 0.34 ppb (4) 32.5 μg/m3 (31) 8.3 μg/m3 (35) 35.0
 
March 30, 2021, 4 a.m. 16.5 ppb (16) 0.5 ppb (1) N/A 16.0 ppb (16) N/A N/A 32.0 ppb (30) 0.32 ppb (4) 35.3 μg/m3 (33) 6.3 μg/m3 (27) 33.0
 
March 30, 2021, 3 a.m. 16.0 ppb (16) 0.9 ppb (1) N/A 15.0 ppb (15) N/A N/A 38.0 ppb (36) 0.31 ppb (4) 35.6 μg/m3 (33) 8.0 μg/m3 (34) 36.0
 
March 30, 2021, 2 a.m. 12.2 ppb (12) 0.5 ppb (1) N/A 12.0 ppb (12) N/A N/A 52.0 ppb (49) 0.26 ppb (4) 25.9 μg/m3 (24) 9.0 μg/m3 (38) 49.0
 
March 30, 2021, 1 a.m. 12.2 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A N/A 53.0 ppb (50) 0.26 ppb (4) 35.6 μg/m3 (33) 6.8 μg/m3 (29) 50.0
 
March 30, 2021, midnight 10.9 ppb (11) 1.5 ppb (2) N/A 9.0 ppb (9) N/A N/A 58.0 ppb (61) 0.25 ppb (3) 31.8 μg/m3 (30) 7.3 μg/m3 (31) 61.0
 
March 29, 2021, 11 p.m. 8.5 ppb (9) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 65.0 ppb (84) 0.24 ppb (3) 32.4 μg/m3 (30) 6.1 μg/m3 (26) 84.0
 
March 29, 2021, 10 p.m. 6.5 ppb (7) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 62.0 ppb (74) 0.21 ppb (3) 25.9 μg/m3 (24) 2.2 μg/m3 (10) 74.0
 
March 29, 2021, 9 p.m. 7.8 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 64.0 ppb (81) 0.24 ppb (3) 24.0 μg/m3 (23) 7.5 μg/m3 (32) 81.0
 
March 29, 2021, 8 p.m. 10.6 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 60.0 ppb (68) 0.26 ppb (4) 33.2 μg/m3 (31) 6.5 μg/m3 (28) 68.0
 
March 29, 2021, 7 p.m. 9.2 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (7) N/A N/A 58.0 ppb (61) 0.24 ppb (3) 23.0 μg/m3 (22) 0.7 μg/m3 (3) 61.0
 
March 29, 2021, 6 p.m. 28.7 ppb (28) 7.1 ppb (7) N/A 22.0 ppb (21) N/A N/A 43.0 ppb (40) 0.32 ppb (4) 43.1 μg/m3 (40) 2.9 μg/m3 (13) 40.0
 
March 29, 2021, 5 p.m. 29.1 ppb (28) 7.8 ppb (8) N/A 21.0 ppb (20) N/A N/A 38.0 ppb (36) 0.33 ppb (4) 26.2 μg/m3 (25) 1.0 μg/m3 (5) 36.0
 
March 29, 2021, 4 p.m. 47.6 ppb (45) 18.3 ppb (18) N/A 29.0 ppb (28) N/A N/A 24.0 ppb (23) 0.43 ppb (5) 31.0 μg/m3 (29) 0.7 μg/m3 (3) 45.0
 
March 29, 2021, 3 p.m. 43.7 ppb (42) 15.4 ppb (15) N/A 28.0 ppb (27) N/A N/A 18.0 ppb (17) 0.49 ppb (6) 32.7 μg/m3 (31) 4.9 μg/m3 (21) 42.0
 
March 29, 2021, 2 p.m. 44.9 ppb (43) 15.4 ppb (15) N/A 30.0 ppb (29) N/A N/A 9.0 ppb (9) 0.65 ppb (8) 63.3 μg/m3 (56) 5.1 μg/m3 (22) 56.0
 
March 29, 2021, 1 p.m. 30.5 ppb (29) 3.2 ppb (4) N/A 27.0 ppb (26) N/A N/A 11.0 ppb (11) 0.42 ppb (5) 19.6 μg/m3 (19) 2.5 μg/m3 (11) 29.0
 
March 29, 2021, noon 24.7 ppb (24) 1.6 ppb (2) N/A 23.0 ppb (22) N/A N/A 16.0 ppb (15) 0.36 ppb (5) 27.6 μg/m3 (26) 3.2 μg/m3 (14) 26.0
 
March 29, 2021, 11 a.m. 14.0 ppb (14) 0.5 ppb (1) N/A 13.0 ppb (13) N/A N/A 25.0 ppb (24) 0.27 ppb (4) 16.9 μg/m3 (16) 4.8 μg/m3 (20) 24.0
 
March 29, 2021, 10 a.m. 9.7 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) 0.25 ppb (3) 18.9 μg/m3 (18) 6.1 μg/m3 (26) 28.0
 
March 29, 2021, 9 a.m. 11.3 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) 0.28 ppb (4) 16.9 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
March 29, 2021, 8 a.m. 14.2 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A N/A 27.0 ppb (25) 0.32 ppb (4) 21.8 μg/m3 (21) 7.3 μg/m3 (31) 31.0
 
March 29, 2021, 7 a.m. 19.3 ppb (19) 0.7 ppb (1) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (20) 0.38 ppb (5) 27.2 μg/m3 (26) 3.5 μg/m3 (15) 26.0
 
March 29, 2021, 6 a.m. 21.4 ppb (21) 0.7 ppb (1) N/A 21.0 ppb (20) N/A N/A 22.0 ppb (21) 0.43 ppb (5) 33.2 μg/m3 (31) 4.3 μg/m3 (18) 31.0
 
March 29, 2021, 5 a.m. 19.2 ppb (19) 0.5 ppb (1) N/A 19.0 ppb (18) N/A N/A 26.0 ppb (25) 0.45 ppb (6) 33.9 μg/m3 (32) 6.5 μg/m3 (28) 32.0
 
March 29, 2021, 4 a.m. 11.5 ppb (11) 0.4 ppb (1) N/A 11.0 ppb (11) N/A N/A 40.0 ppb (38) 0.33 ppb (4) 21.5 μg/m3 (20) 2.7 μg/m3 (12) 38.0
 
March 29, 2021, 3 a.m. 10.0 ppb (10) 0.8 ppb (1) N/A 9.0 ppb (9) N/A N/A 47.0 ppb (44) 0.27 ppb (4) 18.7 μg/m3 (18) 1.5 μg/m3 (7) 44.0
 
March 29, 2021, 2 a.m. 9.6 ppb (10) 1.5 ppb (2) N/A 8.0 ppb (8) N/A N/A 53.0 ppb (50) 0.26 ppb (4) 26.2 μg/m3 (25) 3.0 μg/m3 (13) 50.0
 
March 29, 2021, 1 a.m. 6.8 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 68.0 ppb (94) 0.28 ppb (4) 29.8 μg/m3 (28) 3.8 μg/m3 (16) 94.0
 
March 29, 2021, midnight 3.0 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (94) 0.2 ppb (3) 17.2 μg/m3 (16) 1.5 μg/m3 (7) 94.0
 
March 28, 2021, 11 p.m. 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 70.0 ppb (100) 0.21 ppb (3) 13.8 μg/m3 (13) 0.5 μg/m3 (3) 100.0
 
March 28, 2021, 10 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (94) 0.21 ppb (3) 12.2 μg/m3 (12) 1.0 μg/m3 (5) 94.0
 
March 28, 2021, 9 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 64.0 ppb (81) 0.2 ppb (3) 13.4 μg/m3 (13) 3.4 μg/m3 (15) 81.0
 
March 28, 2021, 8 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (65) 0.26 ppb (4) 13.4 μg/m3 (13) 4.6 μg/m3 (20) 65.0
 
March 28, 2021, 7 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (61) 0.22 ppb (3) 12.9 μg/m3 (12) 2.0 μg/m3 (9) 61.0
 
March 28, 2021, 6 p.m. 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (58) 0.21 ppb (3) 13.9 μg/m3 (13) 1.2 μg/m3 (5) 58.0
 
March 28, 2021, 5 p.m. 8.2 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (42) 0.25 ppb (3) 16.7 μg/m3 (16) 7.8 μg/m3 (33) 42.0
 
March 28, 2021, 4 p.m. 14.3 ppb (14) 4.1 ppb (4) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) 0.28 ppb (4) 16.2 μg/m3 (15) 6.8 μg/m3 (29) 31.0
 
March 28, 2021, 3 p.m. 21.4 ppb (21) 6.4 ppb (7) N/A 15.0 ppb (15) N/A N/A 24.0 ppb (23) 0.37 ppb (5) 18.2 μg/m3 (17) 1.0 μg/m3 (5) 23.0
 
March 28, 2021, 2 p.m. 17.6 ppb (17) 2.9 ppb (3) N/A 15.0 ppb (15) N/A N/A 22.0 ppb (21) 0.36 ppb (5) 19.2 μg/m3 (18) 1.2 μg/m3 (5) 21.0
 
March 28, 2021, 1 p.m. 12.4 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) 0.3 ppb (4) 18.7 μg/m3 (18) 2.0 μg/m3 (9) 23.0
 
March 28, 2021, noon 12.3 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (12) N/A N/A 23.0 ppb (22) 0.35 ppb (4) 40.8 μg/m3 (38) 1.4 μg/m3 (6) 38.0
 
March 28, 2021, 11 a.m. 9.1 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.24 ppb (3) 17.5 μg/m3 (17) 1.7 μg/m3 (8) 25.0
 
March 28, 2021, 10 a.m. 12.2 ppb (12) 0.5 ppb (1) N/A 12.0 ppb (12) N/A N/A 23.0 ppb (22) 0.32 ppb (4) 19.4 μg/m3 (18) -0.4 μg/m3 (0) 22.0
 
March 28, 2021, 9 a.m. 16.0 ppb (16) 0.5 ppb (1) N/A 15.0 ppb (15) N/A N/A 22.0 ppb (21) 0.41 ppb (5) 22.5 μg/m3 (21) 3.7 μg/m3 (16) 21.0
 
March 28, 2021, 8 a.m. 19.8 ppb (19) 1.2 ppb (2) N/A 19.0 ppb (18) N/A N/A 18.0 ppb (17) 0.44 ppb (5) 21.8 μg/m3 (21) 14.1 μg/m3 (56) 56.0
 
March 28, 2021, 7 a.m. 18.6 ppb (18) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 20.0 ppb (19) 0.42 ppb (5) 24.7 μg/m3 (23) 14.7 μg/m3 (57) 57.0
 
March 28, 2021, 6 a.m. 22.7 ppb (22) 1.2 ppb (2) N/A 22.0 ppb (21) N/A N/A 19.0 ppb (18) 0.51 ppb (6) 24.9 μg/m3 (24) 10.0 μg/m3 (42) 42.0