AQSQID: 060711004

Site Name: Upland

Location: Upland (Los Olivos), CA

Reporting: True, Located: True

Current AQI: 79.0

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 1, 2020, 3 p.m. 54.8 ppb (51) 20.7 ppb (19) N/A 34.0 ppb (31) N/A N/A 13.0 ppb (10) 0.54 ppb (6) 47.0 μg/m3 (43) 25.8 μg/m3 (79) 79.0
 
April 1, 2020, 2 p.m. 51.4 ppb (48) 21.1 ppb (20) N/A 30.0 ppb (28) N/A N/A 5.0 ppb (4) 0.71 ppb (8) 34.0 μg/m3 (31) 15.6 μg/m3 (58) 58.0
 
April 1, 2020, 1 p.m. 40.8 ppb (38) 10.6 ppb (10) N/A 30.0 ppb (28) N/A N/A 2.0 ppb (2) 0.55 ppb (6) 34.0 μg/m3 (31) 17.1 μg/m3 (61) 61.0
 
April 1, 2020, noon 32.1 ppb (30) 3.8 ppb (4) N/A 28.0 ppb (26) N/A N/A 3.0 ppb (2) 0.53 ppb (6) 36.0 μg/m3 (33) 10.2 μg/m3 (42) 42.0
 
April 1, 2020, 11 a.m. 22.0 ppb (20) 0.9 ppb (1) N/A 21.0 ppb (19) N/A N/A 7.0 ppb (5) 0.42 ppb (5) 28.0 μg/m3 (25) 8.9 μg/m3 (37) 37.0
 
April 1, 2020, 10 a.m. 21.5 ppb (20) 1.4 ppb (1) N/A 20.0 ppb (19) N/A N/A 7.0 ppb (5) 0.41 ppb (5) 28.0 μg/m3 (25) 10.4 μg/m3 (43) 43.0
 
April 1, 2020, 9 a.m. 23.0 ppb (21) 0.8 ppb (1) N/A 22.0 ppb (20) N/A N/A 8.0 ppb (6) 0.45 ppb (5) 25.0 μg/m3 (23) 13.9 μg/m3 (54) 54.0
 
April 1, 2020, 8 a.m. 21.6 ppb (20) 0.5 ppb (0) N/A 21.0 ppb (19) N/A N/A 12.0 ppb (9) 0.42 ppb (5) 31.0 μg/m3 (28) 14.1 μg/m3 (54) 54.0
 
April 1, 2020, 7 a.m. 22.0 ppb (20) 0.3 ppb (0) N/A 22.0 ppb (20) N/A N/A 16.0 ppb (12) 0.44 ppb (5) 35.0 μg/m3 (32) 12.9 μg/m3 (52) 52.0
 
April 1, 2020, 6 a.m. 23.8 ppb (22) 0.4 ppb (0) N/A 23.0 ppb (21) N/A N/A 19.0 ppb (15) 0.42 ppb (5) 32.0 μg/m3 (29) 11.4 μg/m3 (48) 48.0
 
April 1, 2020, 5 a.m. 21.2 ppb (20) 0.6 ppb (1) N/A 21.0 ppb (19) N/A N/A 31.0 ppb (24) 0.38 ppb (4) 31.0 μg/m3 (28) 13.6 μg/m3 (53) 53.0
 
April 1, 2020, 4 a.m. 19.1 ppb (18) 0.2 ppb (0) N/A 19.0 ppb (18) N/A N/A 37.0 ppb (28) 0.36 ppb (4) 31.0 μg/m3 (28) 13.9 μg/m3 (54) 54.0
 
April 1, 2020, 3 a.m. 19.5 ppb (18) 0.2 ppb (0) N/A 19.0 ppb (18) N/A N/A 40.0 ppb (31) 0.37 ppb (4) 36.0 μg/m3 (33) 10.2 μg/m3 (42) 42.0
 
April 1, 2020, 2 a.m. 17.3 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 44.0 ppb (34) 0.33 ppb (4) 30.0 μg/m3 (27) 9.5 μg/m3 (40) 40.0
 
April 1, 2020, 1 a.m. 17.7 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A N/A 53.0 ppb (41) 0.35 ppb (4) 33.0 μg/m3 (30) 10.9 μg/m3 (45) 45.0
 
April 1, 2020, midnight 18.1 ppb (17) 1.4 ppb (1) N/A 17.0 ppb (16) N/A N/A 58.0 ppb (45) 0.35 ppb (4) 38.0 μg/m3 (35) 10.2 μg/m3 (42) 45.0
 
March 31, 2020, 11 p.m. 13.1 ppb (12) 1.3 ppb (1) N/A 12.0 ppb (11) N/A N/A 60.0 ppb (46) 0.28 ppb (3) 28.0 μg/m3 (25) 11.4 μg/m3 (48) 48.0
 
March 31, 2020, 10 p.m. 16.3 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A N/A 53.0 ppb (41) 0.27 ppb (3) 40.0 μg/m3 (36) 13.1 μg/m3 (52) 52.0
 
March 31, 2020, 9 p.m. 16.1 ppb (15) 2.6 ppb (2) N/A 14.0 ppb (13) N/A N/A 50.0 ppb (38) 0.25 ppb (3) 29.0 μg/m3 (26) 7.7 μg/m3 (32) 38.0
 
March 31, 2020, 8 p.m. 18.1 ppb (17) 3.3 ppb (3) N/A 15.0 ppb (14) N/A N/A 47.0 ppb (36) 0.27 ppb (3) 30.0 μg/m3 (27) 9.2 μg/m3 (38) 38.0
 
March 31, 2020, 7 p.m. 22.4 ppb (21) 4.3 ppb (4) N/A 18.0 ppb (17) N/A N/A 42.0 ppb (32) 0.29 ppb (3) 33.0 μg/m3 (30) 15.1 μg/m3 (57) 57.0
 
March 31, 2020, 6 p.m. 21.8 ppb (20) 4.5 ppb (4) N/A 17.0 ppb (16) N/A N/A 41.0 ppb (32) 0.28 ppb (3) 30.0 μg/m3 (27) 10.9 μg/m3 (45) 45.0
 
March 31, 2020, 5 p.m. 20.0 ppb (19) 4.5 ppb (4) N/A 15.0 ppb (14) N/A N/A 35.0 ppb (27) 0.29 ppb (3) 27.0 μg/m3 (25) 9.2 μg/m3 (38) 38.0
 
March 31, 2020, 4 p.m. 25.0 ppb (23) 6.4 ppb (6) N/A 19.0 ppb (18) N/A N/A 28.0 ppb (22) 0.34 ppb (4) 32.0 μg/m3 (29) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 3 p.m. 33.0 ppb (31) 10.7 ppb (10) N/A 22.0 ppb (20) N/A N/A 18.0 ppb (14) 0.46 ppb (5) 33.0 μg/m3 (30) 6.7 μg/m3 (28) 31.0
 
March 31, 2020, 2 p.m. 47.7 ppb (44) 17.6 ppb (16) N/A 30.0 ppb (28) N/A N/A 5.0 ppb (4) 0.59 ppb (7) 26.0 μg/m3 (24) 1.4 μg/m3 (6) 44.0
 
March 31, 2020, 1 p.m. 31.4 ppb (29) 5.2 ppb (5) N/A 26.0 ppb (24) N/A N/A 6.0 ppb (5) 0.42 ppb (5) 26.0 μg/m3 (24) 2.6 μg/m3 (11) 29.0
 
March 31, 2020, noon 24.9 ppb (23) 1.7 ppb (2) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) 0.37 ppb (4) 21.0 μg/m3 (19) 7.9 μg/m3 (33) 33.0
 
March 31, 2020, 11 a.m. 18.7 ppb (17) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (11) 0.32 ppb (4) 18.0 μg/m3 (16) 10.9 μg/m3 (45) 45.0
 
March 31, 2020, 10 a.m. 16.3 ppb (15) 0.3 ppb (0) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 0.31 ppb (3) 20.0 μg/m3 (18) 14.1 μg/m3 (54) 54.0
 
March 31, 2020, 9 a.m. 18.9 ppb (18) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) 0.34 ppb (4) 23.0 μg/m3 (21) 11.4 μg/m3 (48) 48.0
 
March 31, 2020, 8 a.m. 18.4 ppb (17) 0.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (9) 0.33 ppb (4) 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
March 31, 2020, 7 a.m. 20.3 ppb (19) 1.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (11) 0.33 ppb (4) 25.0 μg/m3 (23) 6.7 μg/m3 (28) 28.0
 
March 31, 2020, 6 a.m. 16.9 ppb (16) 0.3 ppb (0) N/A 17.0 ppb (16) N/A N/A 19.0 ppb (15) 0.33 ppb (4) 23.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
March 31, 2020, 5 a.m. 13.0 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 25.0 ppb (19) 0.28 ppb (3) 20.0 μg/m3 (18) 4.1 μg/m3 (17) 19.0
 
March 31, 2020, 4 a.m. 11.8 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 31.0 ppb (24) 0.26 ppb (3) 20.0 μg/m3 (18) 5.5 μg/m3 (23) 24.0
 
March 31, 2020, 3 a.m. 11.8 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 38.0 ppb (29) 0.25 ppb (3) 22.0 μg/m3 (20) 5.5 μg/m3 (23) 29.0
 
March 31, 2020, 2 a.m. 12.7 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 44.0 ppb (34) 0.26 ppb (3) 25.0 μg/m3 (23) 4.8 μg/m3 (20) 34.0
 
March 31, 2020, 1 a.m. 11.5 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 52.0 ppb (40) 0.27 ppb (3) 29.0 μg/m3 (26) 6.7 μg/m3 (28) 40.0
 
March 31, 2020, midnight 6.5 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 57.0 ppb (44) 0.19 ppb (2) 13.0 μg/m3 (12) 4.2 μg/m3 (18) 44.0
 
March 30, 2020, 11 p.m. 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) 0.18 ppb (2) 11.0 μg/m3 (10) -2.6 μg/m3 (0) 42.0
 
March 30, 2020, 10 p.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (41) 0.18 ppb (2) 17.0 μg/m3 (15) 0.0 μg/m3 (0) 41.0
 
March 30, 2020, 9 p.m. 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) 0.18 ppb (2) 13.0 μg/m3 (12) 5.5 μg/m3 (23) 42.0
 
March 30, 2020, 8 p.m. 9.6 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) 0.2 ppb (2) 23.0 μg/m3 (21) 6.5 μg/m3 (27) 37.0
 
March 30, 2020, 7 p.m. 16.9 ppb (16) 4.4 ppb (4) N/A 12.0 ppb (11) N/A N/A 40.0 ppb (31) 0.24 ppb (3) 27.0 μg/m3 (25) 5.5 μg/m3 (23) 31.0
 
March 30, 2020, 6 p.m. 20.4 ppb (19) 6.1 ppb (6) N/A 14.0 ppb (13) N/A N/A 34.0 ppb (26) 0.27 ppb (3) 20.0 μg/m3 (18) 16.4 μg/m3 (59) 59.0
 
March 30, 2020, 5 p.m. 19.6 ppb (18) 5.9 ppb (5) N/A 14.0 ppb (13) N/A N/A 31.0 ppb (24) 0.27 ppb (3) 19.0 μg/m3 (17) 12.6 μg/m3 (51) 51.0
 
March 30, 2020, 4 p.m. 11.4 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) 0.23 ppb (3) 19.0 μg/m3 (17) 17.5 μg/m3 (62) 62.0
 
March 30, 2020, 3 p.m. 12.2 ppb (11) 2.6 ppb (2) N/A 10.0 ppb (9) N/A N/A 27.0 ppb (21) 0.23 ppb (3) 17.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
March 30, 2020, 2 p.m. 40.4 ppb (37) 16.8 ppb (16) N/A 24.0 ppb (22) N/A N/A 6.0 ppb (5) 0.49 ppb (5) 24.0 μg/m3 (22) 7.2 μg/m3 (30) 37.0
 
March 30, 2020, 1 p.m. 35.1 ppb (32) 10.7 ppb (10) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 0.41 ppb (5) 20.0 μg/m3 (18) 7.4 μg/m3 (31) 32.0
 
March 30, 2020, noon 22.1 ppb (20) 2.9 ppb (3) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (5) 0.34 ppb (4) 20.0 μg/m3 (18) 8.4 μg/m3 (35) 35.0
 
March 30, 2020, 11 a.m. 10.6 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 14.0 ppb (11) 0.23 ppb (3) 12.0 μg/m3 (11) 3.1 μg/m3 (13) 13.0
 
March 30, 2020, 10 a.m. 11.9 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) 0.23 ppb (3) 14.0 μg/m3 (13) 3.4 μg/m3 (14) 14.0
 
March 30, 2020, 9 a.m. 8.7 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.25 ppb (3) 26.0 μg/m3 (24) 6.5 μg/m3 (27) 27.0
 
March 30, 2020, 8 a.m. 11.0 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.27 ppb (3) 13.0 μg/m3 (12) 5.7 μg/m3 (24) 24.0
 
March 30, 2020, 7 a.m. 13.6 ppb (13) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) 0.31 ppb (3) 23.0 μg/m3 (21) 4.7 μg/m3 (20) 21.0
 
March 30, 2020, 6 a.m. 10.9 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.29 ppb (3) 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
March 30, 2020, 5 a.m. 11.6 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 23.0 ppb (18) 0.27 ppb (3) 24.0 μg/m3 (22) 9.2 μg/m3 (38) 38.0
 
March 30, 2020, 4 a.m. 9.5 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) 0.23 ppb (3) 20.0 μg/m3 (18) 3.6 μg/m3 (15) 24.0
 
March 30, 2020, 3 a.m. 6.7 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) 0.21 ppb (2) 17.0 μg/m3 (15) 1.9 μg/m3 (8) 32.0
 
March 30, 2020, 2 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) 0.19 ppb (2) 13.0 μg/m3 (12) 4.4 μg/m3 (18) 35.0
 
March 30, 2020, 1 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) 0.16 ppb (2) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 39.0
 
March 30, 2020, midnight 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (42) 0.17 ppb (2) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 42.0
 
March 29, 2020, 11 p.m. 4.5 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (43) 0.18 ppb (2) 25.0 μg/m3 (23) 6.0 μg/m3 (25) 43.0
 
March 29, 2020, 10 p.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (44) 0.18 ppb (2) 28.0 μg/m3 (25) 6.7 μg/m3 (28) 44.0
 
March 29, 2020, 9 p.m. 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) 0.17 ppb (2) 24.0 μg/m3 (22) 2.4 μg/m3 (10) 42.0
 
March 29, 2020, 8 p.m. 3.4 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) 0.16 ppb (2) 20.0 μg/m3 (18) 3.7 μg/m3 (15) 41.0
 
March 29, 2020, 7 p.m. 3.7 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) 0.19 ppb (2) 17.0 μg/m3 (15) 9.5 μg/m3 (40) 40.0
 
March 29, 2020, 6 p.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) 0.18 ppb (2) 20.0 μg/m3 (18) 19.2 μg/m3 (65) 65.0
 
March 29, 2020, 5 p.m. 6.7 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.19 ppb (2) 21.0 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
March 29, 2020, 4 p.m. 17.2 ppb (16) 4.9 ppb (5) N/A 12.0 ppb (11) N/A N/A 30.0 ppb (23) 0.27 ppb (3) 23.0 μg/m3 (21) 12.1 μg/m3 (50) 50.0
 
March 29, 2020, 3 p.m. 10.5 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) 0.24 ppb (3) 21.0 μg/m3 (19) 19.7 μg/m3 (66) 66.0
 
March 29, 2020, 2 p.m. 22.4 ppb (21) 5.0 ppb (5) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) 0.31 ppb (3) 23.0 μg/m3 (21) 7.9 μg/m3 (33) 33.0
 
March 29, 2020, 1 p.m. 18.7 ppb (17) 2.6 ppb (2) N/A 16.0 ppb (15) N/A N/A 9.0 ppb (7) 0.29 ppb (3) 25.0 μg/m3 (23) 8.1 μg/m3 (34) 34.0
 
March 29, 2020, noon 11.8 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) 0.26 ppb (3) 21.0 μg/m3 (19) 8.1 μg/m3 (34) 34.0
 
March 29, 2020, 11 a.m. 13.1 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 13.0 ppb (10) 0.27 ppb (3) 18.0 μg/m3 (16) 6.7 μg/m3 (28) 28.0
 
March 29, 2020, 10 a.m. 11.8 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) 0.27 ppb (3) 18.0 μg/m3 (16) 6.7 μg/m3 (28) 28.0
 
March 29, 2020, 9 a.m. 14.6 ppb (14) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 12.0 ppb (9) 0.45 ppb (5) 47.0 μg/m3 (43) 5.2 μg/m3 (22) 43.0
 
March 29, 2020, 8 a.m. 14.0 ppb (13) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 16.0 ppb (12) 0.36 ppb (4) 21.0 μg/m3 (19) 3.4 μg/m3 (14) 19.0
 
March 29, 2020, 7 a.m. 12.3 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.26 ppb (3) 20.0 μg/m3 (18) 3.4 μg/m3 (14) 18.0
 
March 29, 2020, 6 a.m. 9.9 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) 0.26 ppb (3) 19.0 μg/m3 (17) 4.7 μg/m3 (20) 25.0
 
March 29, 2020, 5 a.m. 9.5 ppb (9) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.23 ppb (3) 21.0 μg/m3 (19) 7.5 μg/m3 (31) 31.0
 
March 29, 2020, 4 a.m. 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.21 ppb (2) 19.0 μg/m3 (17) 8.2 μg/m3 (34) 34.0
 
March 29, 2020, 3 a.m. 8.3 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) 0.21 ppb (2) 20.0 μg/m3 (18) 5.7 μg/m3 (24) 31.0
 
March 29, 2020, 2 a.m. 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 46.0 ppb (35) 0.22 ppb (2) 19.0 μg/m3 (17) 2.2 μg/m3 (9) 35.0
 
March 29, 2020, 1 a.m. 6.1 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (44) 0.21 ppb (2) 21.0 μg/m3 (19) 3.9 μg/m3 (16) 44.0
 
March 29, 2020, midnight 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) 0.18 ppb (2) 14.0 μg/m3 (13) 5.3 μg/m3 (22) 46.0
 
March 28, 2020, 11 p.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) 0.17 ppb (2) 20.0 μg/m3 (18) 4.4 μg/m3 (18) 45.0
 
March 28, 2020, 10 p.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (44) 0.17 ppb (2) 11.0 μg/m3 (10) 7.5 μg/m3 (31) 44.0
 
March 28, 2020, 9 p.m. 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (42) 0.17 ppb (2) 10.0 μg/m3 (9) 7.7 μg/m3 (32) 42.0
 
March 28, 2020, 8 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (38) 0.18 ppb (2) 10.0 μg/m3 (9) 9.2 μg/m3 (38) 38.0
 
March 28, 2020, 7 p.m. 5.7 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) 0.19 ppb (2) 12.0 μg/m3 (11) 10.2 μg/m3 (42) 42.0
 
March 28, 2020, 6 p.m. 6.6 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) 0.19 ppb (2) 15.0 μg/m3 (14) 9.9 μg/m3 (41) 41.0
 
March 28, 2020, 5 p.m. 10.7 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.21 ppb (2) 15.0 μg/m3 (14) 11.1 μg/m3 (46) 46.0
 
March 28, 2020, 4 p.m. 24.8 ppb (23) 9.2 ppb (9) N/A 16.0 ppb (15) N/A N/A 25.0 ppb (19) 0.28 ppb (3) 19.0 μg/m3 (17) 8.7 μg/m3 (36) 36.0
 
March 28, 2020, 3 p.m. 12.8 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A 28.0 ppb (22) 0.24 ppb (3) 14.0 μg/m3 (13) 3.8 μg/m3 (16) 22.0
 
March 28, 2020, 2 p.m. 29.1 ppb (27) 9.0 ppb (8) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (8) 0.33 ppb (4) 16.0 μg/m3 (15) 2.1 μg/m3 (9) 27.0
 
March 28, 2020, 1 p.m. 21.9 ppb (20) 3.2 ppb (3) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) 0.27 ppb (3) 16.0 μg/m3 (15) 4.3 μg/m3 (18) 20.0
 
March 28, 2020, noon 19.2 ppb (18) 1.2 ppb (1) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) 0.25 ppb (3) 17.0 μg/m3 (15) 3.1 μg/m3 (13) 18.0
 
March 28, 2020, 11 a.m. 18.0 ppb (17) 1.7 ppb (2) N/A 16.0 ppb (15) N/A N/A 9.0 ppb (7) 0.22 ppb (2) 13.0 μg/m3 (12) 1.6 μg/m3 (7) 17.0
 
March 28, 2020, 10 a.m. 12.3 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) 0.23 ppb (3) 20.0 μg/m3 (18) 2.9 μg/m3 (12) 18.0
 
March 28, 2020, 9 a.m. 14.6 ppb (14) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 16.0 ppb (12) 0.22 ppb (2) 15.0 μg/m3 (14) 3.8 μg/m3 (16) 16.0
 
March 28, 2020, 8 a.m. 12.1 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 0.23 ppb (3) 19.0 μg/m3 (17) 4.1 μg/m3 (17) 17.0
 
March 28, 2020, 7 a.m. 13.5 ppb (12) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) 0.26 ppb (3) 17.0 μg/m3 (15) 3.1 μg/m3 (13) 15.0
 
March 28, 2020, 6 a.m. 13.7 ppb (13) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.29 ppb (3) 23.0 μg/m3 (21) 2.9 μg/m3 (12) 21.0
 
March 28, 2020, 5 a.m. 13.8 ppb (13) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 26.0 ppb (20) 0.27 ppb (3) 21.0 μg/m3 (19) 2.4 μg/m3 (10) 20.0
 
March 28, 2020, 4 a.m. 9.7 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) 0.22 ppb (2) 14.0 μg/m3 (13) -0.5 μg/m3 (0) 27.0
 
March 28, 2020, 3 a.m. 6.7 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) 0.19 ppb (2) 13.0 μg/m3 (12) -1.4 μg/m3 (0) 31.0
 
March 28, 2020, 2 a.m. 7.2 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.19 ppb (2) 13.0 μg/m3 (12) 0.0 μg/m3 (0) 32.0
 
March 28, 2020, 1 a.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 14.0 μg/m3 (13) 1.4 μg/m3 (6) 35.0
 
March 28, 2020, midnight 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.17 ppb (2) 14.0 μg/m3 (13) 2.9 μg/m3 (12) 38.0
 
March 27, 2020, 11 p.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (39) 0.17 ppb (2) 13.0 μg/m3 (12) 1.2 μg/m3 (5) 39.0
 
March 27, 2020, 10 p.m. 6.5 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) 0.18 ppb (2) 17.0 μg/m3 (15) 0.0 μg/m3 (0) 38.0
 
March 27, 2020, 9 p.m. 7.0 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 18.0 μg/m3 (16) 2.4 μg/m3 (10) 35.0
 
March 27, 2020, 8 p.m. 8.3 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (32) 0.19 ppb (2) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 32.0
 
March 27, 2020, 7 p.m. 7.2 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) 0.18 ppb (2) 10.0 μg/m3 (9) 10.7 μg/m3 (45) 45.0
 
March 27, 2020, 6 p.m. 10.9 ppb (10) 3.1 ppb (3) N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.19 ppb (2) 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
March 27, 2020, 5 p.m. 14.4 ppb (13) 4.3 ppb (4) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) 0.22 ppb (2) 13.0 μg/m3 (12) 8.7 μg/m3 (36) 36.0
 
March 27, 2020, 4 p.m. 15.1 ppb (14) 4.4 ppb (4) N/A 11.0 ppb (10) N/A N/A 29.0 ppb (22) 0.22 ppb (2) 17.0 μg/m3 (15) 17.3 μg/m3 (61) 61.0
 
March 27, 2020, 3 p.m. 18.9 ppb (18) 5.6 ppb (5) N/A 13.0 ppb (12) N/A N/A 23.0 ppb (18) 0.25 ppb (3) 20.0 μg/m3 (18) 8.8 μg/m3 (37) 37.0
 
March 27, 2020, 2 p.m. 34.8 ppb (32) 10.9 ppb (10) N/A 24.0 ppb (22) N/A N/A 6.0 ppb (5) 0.36 ppb (4) 27.0 μg/m3 (25) 2.1 μg/m3 (9) 32.0
 
March 27, 2020, 1 p.m. 25.8 ppb (24) 4.1 ppb (4) N/A 22.0 ppb (20) N/A N/A 6.0 ppb (5) 0.34 ppb (4) 13.0 μg/m3 (12) -1.1 μg/m3 (0) 24.0
 
March 27, 2020, noon 19.9 ppb (18) 2.5 ppb (2) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) 0.32 ppb (4) 9.0 μg/m3 (8) 1.6 μg/m3 (7) 18.0
 
March 27, 2020, 11 a.m. 13.4 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 12.0
 
March 27, 2020, 10 a.m. 10.5 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.19 ppb (2) 10.0 μg/m3 (9) 0.8 μg/m3 (3) 14.0
 
March 27, 2020, 9 a.m. 10.4 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.22 ppb (2) 11.0 μg/m3 (10) 2.6 μg/m3 (11) 13.0
 
March 27, 2020, 8 a.m. 12.3 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 15.0 ppb (12) 0.28 ppb (3) 18.0 μg/m3 (16) 0.4 μg/m3 (2) 16.0
 
March 27, 2020, 7 a.m. 11.2 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.23 ppb (3) 11.0 μg/m3 (10) -1.0 μg/m3 (0) 15.0
 
March 27, 2020, 6 a.m. 13.0 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) 0.26 ppb (3) 13.0 μg/m3 (12) 0.4 μg/m3 (2) 18.0
 
March 27, 2020, 5 a.m. 14.2 ppb (13) 0.7 ppb (1) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) 0.22 ppb (2) 18.0 μg/m3 (16) 3.1 μg/m3 (13) 16.0
 
March 27, 2020, 4 a.m. 9.2 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.18 ppb (2) 13.0 μg/m3 (12) 3.1 μg/m3 (13) 23.0
 
March 27, 2020, 3 a.m. 6.3 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.16 ppb (2) 13.0 μg/m3 (12) 2.4 μg/m3 (10) 27.0
 
March 27, 2020, 2 a.m. 5.0 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.16 ppb (2) 12.0 μg/m3 (11) -0.7 μg/m3 (0) 30.0
 
March 27, 2020, 1 a.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) 0.15 ppb (2) 13.0 μg/m3 (12) -1.9 μg/m3 (0) 32.0
 
March 27, 2020, midnight 3.8 ppb (4) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.15 ppb (2) 16.0 μg/m3 (15) 3.2 μg/m3 (13) 34.0
 
March 26, 2020, 11 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.16 ppb (2) 11.0 μg/m3 (10) 4.6 μg/m3 (19) 37.0
 
March 26, 2020, 10 p.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) 0.16 ppb (2) 9.0 μg/m3 (8) 1.7 μg/m3 (7) 38.0
 
March 26, 2020, 9 p.m. 3.7 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.18 ppb (2) 11.0 μg/m3 (10) 3.9 μg/m3 (16) 37.0
 
March 26, 2020, 8 p.m. 1.8 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.16 ppb (2) 11.0 μg/m3 (10) 8.3 μg/m3 (35) 36.0
 
March 26, 2020, 7 p.m. 2.3 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.18 ppb (2) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 35.0
 
March 26, 2020, 6 p.m. 5.1 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.19 ppb (2) 8.0 μg/m3 (7) 1.4 μg/m3 (6) 32.0
 
March 26, 2020, 5 p.m. 9.5 ppb (9) 3.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) 0.21 ppb (2) 7.0 μg/m3 (6) 6.7 μg/m3 (28) 29.0
 
March 26, 2020, 4 p.m. 8.4 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) 0.21 ppb (2) 8.0 μg/m3 (7) 8.1 μg/m3 (34) 34.0
 
March 26, 2020, 3 p.m. 17.4 ppb (16) 6.1 ppb (6) N/A 11.0 ppb (10) N/A N/A 23.0 ppb (18) 0.27 ppb (3) 13.0 μg/m3 (12) 2.3 μg/m3 (10) 18.0
 
March 26, 2020, 2 p.m. 24.0 ppb (22) 7.9 ppb (7) N/A 16.0 ppb (15) N/A N/A 12.0 ppb (9) 0.34 ppb (4) 13.0 μg/m3 (12) -0.1 μg/m3 (0) 22.0
 
March 26, 2020, 1 p.m. 20.1 ppb (19) 2.8 ppb (3) N/A 17.0 ppb (16) N/A N/A 9.0 ppb (7) 0.31 ppb (3) 11.0 μg/m3 (10) -1.3 μg/m3 (0) 19.0
 
March 26, 2020, noon 13.1 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (10) N/A N/A 12.0 ppb (9) 0.29 ppb (3) 9.0 μg/m3 (8) -0.3 μg/m3 (0) 12.0
 
March 26, 2020, 11 a.m. 8.2 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.23 ppb (3) 10.0 μg/m3 (9) 0.9 μg/m3 (4) 13.0
 
March 26, 2020, 10 a.m. 8.7 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 14.0
 
March 26, 2020, 9 a.m. 8.0 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.18 ppb (2) 14.0 μg/m3 (13) 2.6 μg/m3 (11) 18.0
 
March 26, 2020, 8 a.m. 7.9 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.18 ppb (2) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
March 26, 2020, 7 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.17 ppb (2) 12.0 μg/m3 (11) 0.7 μg/m3 (3) 27.0
 
March 26, 2020, 6 a.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.17 ppb (2) 10.0 μg/m3 (9) -0.5 μg/m3 (0) 28.0
 
March 26, 2020, 5 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.16 ppb (2) 9.0 μg/m3 (8) -1.0 μg/m3 (0) 31.0
 
March 26, 2020, 4 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.15 ppb (2) 9.0 μg/m3 (8) -3.1 μg/m3 (0) 31.0
 
March 26, 2020, 3 a.m. 2.4 ppb (2) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.15 ppb (2) 7.0 μg/m3 (6) -2.7 μg/m3 (0) 30.0
 
March 26, 2020, 2 a.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.14 ppb (2) 7.0 μg/m3 (6) -3.6 μg/m3 (0) 28.0
 
March 26, 2020, 1 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.14 ppb (2) 7.0 μg/m3 (6) -2.2 μg/m3 (0) 30.0
 
March 26, 2020, midnight 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.14 ppb (2) 9.0 μg/m3 (8) 1.2 μg/m3 (5) 32.0
 
March 25, 2020, 11 p.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.15 ppb (2) 11.0 μg/m3 (10) 1.0 μg/m3 (4) 33.0
 
March 25, 2020, 10 p.m. 2.6 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.15 ppb (2) 10.0 μg/m3 (9) -0.7 μg/m3 (0) 35.0
 
March 25, 2020, 9 p.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 8.0 μg/m3 (7) -2.1 μg/m3 (0) 36.0
 
March 25, 2020, 8 p.m. 2.3 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 8.0 μg/m3 (7) -0.2 μg/m3 (0) 36.0
 
March 25, 2020, 7 p.m. 3.3 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.16 ppb (2) 10.0 μg/m3 (9) 2.7 μg/m3 (11) 35.0
 
March 25, 2020, 6 p.m. 3.7 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.15 ppb (2) 7.0 μg/m3 (6) 3.2 μg/m3 (13) 33.0
 
March 25, 2020, 5 p.m. 3.2 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.15 ppb (2) 6.0 μg/m3 (5) 2.7 μg/m3 (11) 32.0
 
March 25, 2020, 4 p.m. 4.0 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.16 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 31.0