AQSQID: 060658001

Site Name: Riverside - Rubidoux

Location: Rivside (Rivview Dr), CA

Reporting: True, Located: True

Current AQI: 42.0

Rivside (Rivview Dr) CA, US: 33.999449, -117.415831

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 3, 2020, 3 p.m. 7.9 ppb (7) 1.7 ppb (2) 8.7 ppb (8) 6.0 ppb (6) 7.3 ppb (7) 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 31.0 μg/m3 (28) 10.0 μg/m3 (42) 42.0
 
April 3, 2020, 2 p.m. 9.9 ppb (9) 1.7 ppb (2) 10.4 ppb (10) 8.0 ppb (7) 9.2 ppb (9) 0.0 ppb (0) 23.0 ppb (18) 0.17 ppb (2) 33.0 μg/m3 (30) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 1 p.m. 8.7 ppb (8) 0.7 ppb (1) 9.7 ppb (9) 8.0 ppb (7) 9.4 ppb (9) 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) 28.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
April 3, 2020, noon 5.7 ppb (5) 0.3 ppb (0) 7.2 ppb (7) 5.0 ppb (5) 7.1 ppb (7) 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) 29.0 μg/m3 (26) 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 11 a.m. 12.1 ppb (11) 0.7 ppb (1) 13.2 ppb (12) 11.0 ppb (10) 12.8 ppb (12) 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) 36.0 μg/m3 (33) 16.0 μg/m3 (59) 59.0
 
April 3, 2020, 10 a.m. 8.4 ppb (8) 0.4 ppb (0) 9.1 ppb (8) 8.0 ppb (7) 9.1 ppb (8) 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) 26.0 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
April 3, 2020, 9 a.m. 7.0 ppb (6) 0.3 ppb (0) 8.5 ppb (8) 7.0 ppb (6) 8.5 ppb (8) 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 8 a.m. 6.4 ppb (6) 0.3 ppb (0) 7.5 ppb (7) 6.0 ppb (6) 7.4 ppb (7) 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) 29.0 μg/m3 (26) 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 7 a.m. 6.2 ppb (6) 0.3 ppb (0) 7.1 ppb (7) 6.0 ppb (6) 7.1 ppb (7) 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) 31.0 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 6 a.m. 7.6 ppb (7) 0.3 ppb (0) 8.0 ppb (7) 7.0 ppb (6) 8.0 ppb (7) 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 5 a.m. 4.4 ppb (4) 0.3 ppb (0) 5.3 ppb (5) 4.0 ppb (4) 5.3 ppb (5) 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) 30.0 μg/m3 (27) 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 4 a.m. 3.9 ppb (4) 0.3 ppb (0) 4.8 ppb (4) 4.0 ppb (4) 4.8 ppb (4) 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 3 a.m. 3.6 ppb (3) 0.3 ppb (0) 4.4 ppb (4) 3.0 ppb (3) 4.3 ppb (4) 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 28.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 2 a.m. 3.7 ppb (3) 0.3 ppb (0) 4.5 ppb (4) 3.0 ppb (3) 4.4 ppb (4) 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 1 a.m. 3.5 ppb (3) 0.3 ppb (0) 5.0 ppb (5) 3.0 ppb (3) 4.8 ppb (4) 0.0 ppb (0) 43.0 ppb (33) 0.15 ppb (2) 42.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
April 3, 2020, midnight 3.4 ppb (3) 0.4 ppb (0) 5.3 ppb (5) 3.0 ppb (3) 5.1 ppb (5) 0.0 ppb (0) 48.0 ppb (37) 0.18 ppb (2) 37.0 μg/m3 (34) 11.0 μg/m3 (46) 46.0
 
April 2, 2020, 11 p.m. 4.3 ppb (4) 0.6 ppb (1) 6.9 ppb (6) 4.0 ppb (4) 6.5 ppb (6) 0.0 ppb (0) 52.0 ppb (40) 0.15 ppb (2) 35.0 μg/m3 (32) 11.0 μg/m3 (46) 46.0
 
April 2, 2020, 10 p.m. 5.2 ppb (5) 0.9 ppb (1) 8.0 ppb (7) 4.0 ppb (4) 7.3 ppb (7) 0.0 ppb (0) 49.0 ppb (38) 0.14 ppb (2) 37.0 μg/m3 (34) 12.0 μg/m3 (50) 50.0
 
April 2, 2020, 9 p.m. 6.3 ppb (6) 1.2 ppb (1) 9.5 ppb (9) 5.0 ppb (5) 8.5 ppb (8) 0.0 ppb (0) 49.0 ppb (38) 0.14 ppb (2) 33.0 μg/m3 (30) 12.0 μg/m3 (50) 50.0
 
April 2, 2020, 8 p.m. 7.0 ppb (6) 1.5 ppb (1) 9.6 ppb (9) 5.0 ppb (5) 8.3 ppb (8) 0.0 ppb (0) 46.0 ppb (35) 0.15 ppb (2) 29.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
April 2, 2020, 7 p.m. 5.2 ppb (5) 1.0 ppb (1) 7.2 ppb (7) 4.0 ppb (4) 6.4 ppb (6) 0.0 ppb (0) 46.0 ppb (35) 0.14 ppb (2) 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 6 p.m. 4.1 ppb (4) 1.0 ppb (1) 5.8 ppb (5) 3.0 ppb (3) 5.2 ppb (5) 0.0 ppb (0) 42.0 ppb (32) 0.14 ppb (2) 20.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 5 p.m. 4.2 ppb (4) 1.0 ppb (1) 5.6 ppb (5) 3.0 ppb (3) 5.0 ppb (5) 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
April 2, 2020, 4 p.m. 4.8 ppb (4) 1.0 ppb (1) 5.9 ppb (5) 4.0 ppb (4) 5.1 ppb (5) 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) 23.0 μg/m3 (21) 4.0 μg/m3 (17) 25.0
 
April 2, 2020, 3 p.m. 7.2 ppb (7) 1.4 ppb (1) 8.0 ppb (7) 6.0 ppb (6) 6.9 ppb (6) 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) 24.0 μg/m3 (22) 5.0 μg/m3 (21) 22.0
 
April 2, 2020, 2 p.m. 8.7 ppb (8) 1.1 ppb (1) 9.7 ppb (9) 8.0 ppb (7) 9.0 ppb (8) 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) 26.0 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 1 p.m. 4.2 ppb (4) 0.4 ppb (0) 5.5 ppb (5) 4.0 ppb (4) 5.4 ppb (5) 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, noon 4.5 ppb (4) 0.4 ppb (0) 6.5 ppb (6) 4.0 ppb (4) 6.5 ppb (6) 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 11 a.m. 4.1 ppb (4) 0.4 ppb (0) 5.7 ppb (5) 4.0 ppb (4) 5.7 ppb (5) 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) 24.0 μg/m3 (22) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 10 a.m. 3.0 ppb (3) 0.3 ppb (0) 4.0 ppb (4) 3.0 ppb (3) 4.0 ppb (4) 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
April 2, 2020, 9 a.m. 3.1 ppb (3) 0.3 ppb (0) 4.4 ppb (4) 3.0 ppb (3) 4.4 ppb (4) 0.0 ppb (0) 26.0 ppb (20) 0.13 ppb (1) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 8 a.m. 3.2 ppb (3) 0.3 ppb (0) 4.7 ppb (4) 3.0 ppb (3) 4.7 ppb (4) 0.0 ppb (0) 26.0 ppb (20) 0.12 ppb (1) 25.0 μg/m3 (23) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 7 a.m. 3.9 ppb (4) 0.4 ppb (0) 4.8 ppb (4) 4.0 ppb (4) 4.8 ppb (4) 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) 19.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 6 a.m. 5.0 ppb (5) 0.4 ppb (0) 6.0 ppb (6) 5.0 ppb (5) 6.0 ppb (6) 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) 21.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
April 2, 2020, 5 a.m. 6.4 ppb (6) 0.5 ppb (0) 7.4 ppb (7) 6.0 ppb (6) 7.3 ppb (7) 0.0 ppb (0) 27.0 ppb (21) 0.18 ppb (2) 26.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
April 2, 2020, 4 a.m. 7.4 ppb (7) 0.4 ppb (0) 8.1 ppb (8) 7.0 ppb (6) 8.1 ppb (8) 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
April 2, 2020, 3 a.m. 5.3 ppb (5) 0.3 ppb (0) 6.2 ppb (6) 5.0 ppb (5) 6.2 ppb (6) 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) 27.0 μg/m3 (25) 6.0 μg/m3 (25) 27.0
 
April 2, 2020, 2 a.m. 4.7 ppb (4) 0.3 ppb (0) 5.8 ppb (5) 4.0 ppb (4) 5.7 ppb (5) 0.0 ppb (0) 39.0 ppb (30) 0.15 ppb (2) 26.0 μg/m3 (24) 5.0 μg/m3 (21) 30.0
 
April 2, 2020, 1 a.m. 4.0 ppb (4) 0.3 ppb (0) 5.5 ppb (5) 4.0 ppb (4) 5.4 ppb (5) 0.0 ppb (0) 46.0 ppb (35) 0.15 ppb (2) 27.0 μg/m3 (25) 5.0 μg/m3 (21) 35.0
 
April 2, 2020, midnight 3.8 ppb (4) 0.4 ppb (0) 5.7 ppb (5) 3.0 ppb (3) 5.4 ppb (5) 0.0 ppb (0) 52.0 ppb (40) 0.15 ppb (2) 34.0 μg/m3 (31) 2.0 μg/m3 (8) 40.0
 
April 1, 2020, 11 p.m. 3.6 ppb (3) 0.6 ppb (1) 5.7 ppb (5) 3.0 ppb (3) 5.5 ppb (5) 0.0 ppb (0) 55.0 ppb (42) 0.15 ppb (2) 32.0 μg/m3 (29) 5.0 μg/m3 (21) 42.0
 
April 1, 2020, 10 p.m. 4.6 ppb (4) 0.6 ppb (1) 8.0 ppb (7) 4.0 ppb (4) 7.7 ppb (7) 0.0 ppb (0) 63.0 ppb (48) 0.18 ppb (2) 37.0 μg/m3 (34) 8.0 μg/m3 (33) 48.0
 
April 1, 2020, 9 p.m. N/A N/A 9.0 ppb (8) N/A 8.4 ppb (8) 0.0 ppb (0) N/A 0.19 ppb (2) 32.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
April 1, 2020, 8 p.m. N/A N/A 12.2 ppb (11) N/A 11.6 ppb (11) 0.0 ppb (0) N/A 0.21 ppb (2) 36.0 μg/m3 (33) 14.0 μg/m3 (54) 54.0
 
April 1, 2020, 7 p.m. N/A N/A 19.2 ppb (18) N/A 17.4 ppb (16) 0.0 ppb (0) N/A 0.27 ppb (3) 44.0 μg/m3 (40) 13.0 μg/m3 (52) 52.0
 
April 1, 2020, 6 p.m. N/A N/A 16.4 ppb (15) N/A 15.0 ppb (14) 1.0 ppb (1) N/A 0.27 ppb (3) 36.0 μg/m3 (33) 15.0 μg/m3 (56) 56.0
 
April 1, 2020, 5 p.m. N/A N/A 22.1 ppb (20) N/A 17.6 ppb (16) 0.0 ppb (0) N/A 0.31 ppb (3) 44.0 μg/m3 (40) 15.0 μg/m3 (56) 56.0
 
April 1, 2020, 4 p.m. 28.9 ppb (27) 8.1 ppb (8) 32.2 ppb (30) 21.0 ppb (19) 23.4 ppb (22) 0.0 ppb (0) 24.0 ppb (18) 0.37 ppb (4) 48.0 μg/m3 (44) 21.0 μg/m3 (69) 69.0
 
April 1, 2020, 3 p.m. 95.9 ppb (95) 59.8 ppb (56) 95.4 ppb (94) 36.0 ppb (33) 39.2 ppb (36) 1.0 ppb (1) 7.0 ppb (5) 0.74 ppb (8) 73.0 μg/m3 (59) 27.0 μg/m3 (82) 95.0
 
April 1, 2020, 2 p.m. 100.4 ppb (99) 70.6 ppb (68) 100.8 ppb (100) 30.0 ppb (28) 33.6 ppb (31) 1.0 ppb (1) 2.0 ppb (2) 0.83 ppb (9) 90.0 μg/m3 (68) 23.0 μg/m3 (73) 100.0
 
April 1, 2020, 1 p.m. 74.5 ppb (72) 43.0 ppb (40) 74.1 ppb (71) 32.0 ppb (30) 36.0 ppb (33) 1.0 ppb (1) 1.0 ppb (1) 0.72 ppb (8) 49.0 μg/m3 (45) 20.0 μg/m3 (67) 72.0
 
April 1, 2020, noon 52.7 ppb (49) 22.2 ppb (21) 52.1 ppb (48) 31.0 ppb (29) 34.8 ppb (32) 0.0 ppb (0) 1.0 ppb (1) 0.67 ppb (7) 36.0 μg/m3 (33) 18.0 μg/m3 (63) 63.0
 
April 1, 2020, 11 a.m. 42.1 ppb (39) 11.5 ppb (11) 51.8 ppb (48) 31.0 ppb (29) 34.6 ppb (32) 0.0 ppb (0) 2.0 ppb (2) 0.46 ppb (5) 41.0 μg/m3 (37) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, 10 a.m. 35.6 ppb (33) 4.9 ppb (5) 34.9 ppb (32) 31.0 ppb (29) 31.3 ppb (29) 0.0 ppb (0) 3.0 ppb (2) 0.41 ppb (5) 41.0 μg/m3 (37) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, 9 a.m. 33.0 ppb (31) 1.0 ppb (1) 36.7 ppb (34) 32.0 ppb (30) 35.0 ppb (32) 0.0 ppb (0) 3.0 ppb (2) 0.44 ppb (5) 40.0 μg/m3 (36) 17.0 μg/m3 (61) 61.0
 
April 1, 2020, 8 a.m. 28.1 ppb (26) -0.2 ppb (0) 29.7 ppb (28) 28.0 ppb (26) 29.5 ppb (27) 0.0 ppb (0) 10.0 ppb (8) 0.39 ppb (4) 41.0 μg/m3 (37) 17.0 μg/m3 (61) 61.0
 
April 1, 2020, 7 a.m. 18.2 ppb (17) -0.7 ppb (0) 23.0 ppb (21) 19.0 ppb (18) 23.0 ppb (21) 0.0 ppb (0) 21.0 ppb (16) 0.35 ppb (4) 41.0 μg/m3 (37) 22.0 μg/m3 (71) 71.0
 
April 1, 2020, 6 a.m. 15.2 ppb (14) -1.0 ppb (0) 21.1 ppb (20) 16.0 ppb (15) 21.0 ppb (19) 0.0 ppb (0) 26.0 ppb (20) 0.32 ppb (4) 41.0 μg/m3 (37) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, 5 a.m. 16.9 ppb (16) -1.0 ppb (0) 21.5 ppb (20) 18.0 ppb (17) 21.4 ppb (20) 0.0 ppb (0) 27.0 ppb (21) 0.39 ppb (4) 40.0 μg/m3 (36) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, 4 a.m. 14.0 ppb (13) -1.1 ppb (0) 17.1 ppb (16) 15.0 ppb (14) 17.1 ppb (16) 0.0 ppb (0) 34.0 ppb (26) 0.35 ppb (4) 38.0 μg/m3 (35) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, 3 a.m. 11.2 ppb (10) -1.2 ppb (0) 13.7 ppb (13) 12.0 ppb (11) 13.6 ppb (13) 0.0 ppb (0) 38.0 ppb (29) 0.31 ppb (3) 39.0 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
April 1, 2020, 2 a.m. 12.3 ppb (11) -1.3 ppb (0) 15.0 ppb (14) 14.0 ppb (13) 14.9 ppb (14) 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 38.0 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
April 1, 2020, 1 a.m. 13.3 ppb (12) -1.1 ppb (0) 16.8 ppb (16) 14.0 ppb (13) 16.4 ppb (15) 0.0 ppb (0) 48.0 ppb (37) 0.29 ppb (3) 39.0 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
April 1, 2020, midnight 11.8 ppb (11) -0.7 ppb (0) 16.6 ppb (15) 12.0 ppb (11) 15.8 ppb (15) 0.0 ppb (0) 57.0 ppb (44) 0.3 ppb (3) 46.0 μg/m3 (42) 12.0 μg/m3 (50) 50.0
 
March 31, 2020, 11 p.m. 8.9 ppb (8) -0.6 ppb (0) 12.6 ppb (12) 9.0 ppb (8) 11.8 ppb (11) 0.0 ppb (0) 56.0 ppb (43) 0.26 ppb (3) 42.0 μg/m3 (38) 7.0 μg/m3 (29) 43.0
 
March 31, 2020, 10 p.m. 4.9 ppb (5) -1.0 ppb (0) 8.4 ppb (8) 6.0 ppb (6) 7.9 ppb (7) 0.0 ppb (0) 59.0 ppb (45) 0.19 ppb (2) 23.0 μg/m3 (21) 4.0 μg/m3 (17) 45.0
 
March 31, 2020, 9 p.m. 8.6 ppb (8) 0.0 ppb (0) 12.1 ppb (11) 9.0 ppb (8) 10.6 ppb (10) 0.0 ppb (0) 53.0 ppb (41) 0.22 ppb (2) 24.0 μg/m3 (22) 5.0 μg/m3 (21) 41.0
 
March 31, 2020, 8 p.m. 11.1 ppb (10) 0.7 ppb (1) 15.2 ppb (14) 10.0 ppb (9) 11.7 ppb (11) 0.0 ppb (0) 48.0 ppb (37) 0.22 ppb (2) 29.0 μg/m3 (26) 6.0 μg/m3 (25) 37.0
 
March 31, 2020, 7 p.m. 19.1 ppb (18) 3.2 ppb (3) 21.7 ppb (20) 16.0 ppb (15) 17.0 ppb (16) 0.0 ppb (0) 38.0 ppb (29) 0.28 ppb (3) 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
March 31, 2020, 6 p.m. 31.2 ppb (29) 8.5 ppb (8) 33.0 ppb (31) 23.0 ppb (21) 23.3 ppb (22) 0.0 ppb (0) 25.0 ppb (19) 0.32 ppb (4) 39.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 5 p.m. 51.4 ppb (48) 19.7 ppb (18) 52.8 ppb (49) 32.0 ppb (30) 32.6 ppb (30) 0.0 ppb (0) 16.0 ppb (12) 0.37 ppb (4) 64.0 μg/m3 (54) 18.0 μg/m3 (63) 63.0
 
March 31, 2020, 4 p.m. 63.6 ppb (60) 32.5 ppb (30) 64.1 ppb (61) 31.0 ppb (29) 32.3 ppb (30) 1.0 ppb (1) 11.0 ppb (8) 0.42 ppb (5) 69.0 μg/m3 (57) 16.0 μg/m3 (59) 61.0
 
March 31, 2020, 3 p.m. 110.2 ppb (102) 76.6 ppb (74) 107.8 ppb (101) 34.0 ppb (31) 35.6 ppb (33) 1.0 ppb (1) 3.0 ppb (2) 0.62 ppb (7) 97.0 μg/m3 (71) 26.0 μg/m3 (80) 102.0
 
March 31, 2020, 2 p.m. 106.1 ppb (101) 73.8 ppb (71) 103.7 ppb (101) 32.0 ppb (30) 35.2 ppb (33) 1.0 ppb (1) 1.0 ppb (1) 0.64 ppb (7) 53.0 μg/m3 (48) 17.0 μg/m3 (61) 101.0
 
March 31, 2020, 1 p.m. 71.4 ppb (69) 43.4 ppb (40) 70.1 ppb (67) 28.0 ppb (26) 30.0 ppb (28) 1.0 ppb (1) 1.0 ppb (1) 0.5 ppb (6) 42.0 μg/m3 (38) 14.0 μg/m3 (54) 69.0
 
March 31, 2020, noon 65.1 ppb (62) 35.7 ppb (33) 61.9 ppb (58) 29.0 ppb (27) 31.4 ppb (29) 0.0 ppb (0) 1.0 ppb (1) 0.46 ppb (5) 43.0 μg/m3 (39) 13.0 μg/m3 (52) 62.0
 
March 31, 2020, 11 a.m. 46.1 ppb (43) 18.0 ppb (17) 53.2 ppb (49) 28.0 ppb (26) 30.9 ppb (29) 0.0 ppb (0) 1.0 ppb (1) 0.37 ppb (4) 33.0 μg/m3 (30) 11.0 μg/m3 (46) 49.0
 
March 31, 2020, 10 a.m. 36.6 ppb (34) 9.8 ppb (9) 35.3 ppb (33) 27.0 ppb (25) 27.8 ppb (26) 0.0 ppb (0) 2.0 ppb (2) 0.32 ppb (4) 28.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 9 a.m. 20.7 ppb (19) -0.1 ppb (0) 23.8 ppb (22) 21.0 ppb (19) 22.9 ppb (21) 0.0 ppb (0) 8.0 ppb (6) 0.28 ppb (3) 23.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 8 a.m. 23.9 ppb (22) 0.3 ppb (0) 27.0 ppb (25) 24.0 ppb (22) 25.3 ppb (23) 0.0 ppb (0) 5.0 ppb (4) 0.34 ppb (4) 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
March 31, 2020, 7 a.m. 26.3 ppb (24) 0.1 ppb (0) 27.7 ppb (26) 26.0 ppb (24) 26.7 ppb (25) 0.0 ppb (0) 7.0 ppb (5) 0.33 ppb (4) 25.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 6 a.m. 21.3 ppb (20) -0.9 ppb (0) 22.4 ppb (21) 22.0 ppb (20) 22.3 ppb (21) 0.0 ppb (0) 15.0 ppb (12) 0.37 ppb (4) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 5 a.m. 7.0 ppb (6) -1.3 ppb (0) 10.3 ppb (10) 8.0 ppb (7) 10.3 ppb (10) 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 26.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 4 a.m. 7.7 ppb (7) -1.3 ppb (0) 10.9 ppb (10) 9.0 ppb (8) 10.9 ppb (10) 0.0 ppb (0) 37.0 ppb (28) 0.27 ppb (3) 28.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 3 a.m. 8.2 ppb (8) -1.3 ppb (0) 11.4 ppb (11) 9.0 ppb (8) 11.4 ppb (11) 0.0 ppb (0) 41.0 ppb (32) 0.23 ppb (3) 30.0 μg/m3 (27) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 2 a.m. 9.1 ppb (8) -1.3 ppb (0) 12.2 ppb (11) 10.0 ppb (9) 12.1 ppb (11) 0.0 ppb (0) 44.0 ppb (34) 0.23 ppb (3) 35.0 μg/m3 (32) 6.0 μg/m3 (25) 34.0
 
March 31, 2020, 1 a.m. 9.2 ppb (9) -1.1 ppb (0) 12.5 ppb (12) 10.0 ppb (9) 12.2 ppb (11) 0.0 ppb (0) 50.0 ppb (38) 0.23 ppb (3) 35.0 μg/m3 (32) 4.0 μg/m3 (17) 38.0
 
March 31, 2020, midnight 2.6 ppb (2) -1.3 ppb (0) 5.8 ppb (5) 4.0 ppb (4) 5.5 ppb (5) 0.0 ppb (0) 54.0 ppb (42) 0.15 ppb (2) 20.0 μg/m3 (18) 3.0 μg/m3 (12) 42.0
 
March 30, 2020, 11 p.m. 1.6 ppb (1) -1.2 ppb (0) 5.0 ppb (5) 3.0 ppb (3) 4.7 ppb (4) 0.0 ppb (0) 52.0 ppb (40) 0.15 ppb (2) 26.0 μg/m3 (24) 5.0 μg/m3 (21) 40.0
 
March 30, 2020, 10 p.m. 3.4 ppb (3) -0.8 ppb (0) 7.5 ppb (7) 4.0 ppb (4) 6.8 ppb (6) 0.0 ppb (0) 52.0 ppb (40) 0.15 ppb (2) 28.0 μg/m3 (25) 8.0 μg/m3 (33) 40.0
 
March 30, 2020, 9 p.m. 6.1 ppb (6) -0.1 ppb (0) 9.9 ppb (9) 6.0 ppb (6) 8.4 ppb (8) 0.0 ppb (0) 48.0 ppb (37) 0.17 ppb (2) 28.0 μg/m3 (25) 7.0 μg/m3 (29) 37.0
 
March 30, 2020, 8 p.m. 6.9 ppb (6) 0.3 ppb (0) 10.2 ppb (9) 7.0 ppb (6) 8.4 ppb (8) 0.0 ppb (0) 45.0 ppb (35) 0.17 ppb (2) 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
March 30, 2020, 7 p.m. 5.2 ppb (5) -0.1 ppb (0) 8.3 ppb (8) 5.0 ppb (5) 6.9 ppb (6) 0.0 ppb (0) 45.0 ppb (35) 0.16 ppb (2) 31.0 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
March 30, 2020, 6 p.m. 7.3 ppb (7) 0.7 ppb (1) 9.8 ppb (9) 7.0 ppb (6) 7.6 ppb (7) 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) 28.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
March 30, 2020, 5 p.m. 9.2 ppb (9) 1.5 ppb (1) 11.1 ppb (10) 8.0 ppb (7) 8.3 ppb (8) 0.0 ppb (0) 37.0 ppb (28) 0.19 ppb (2) 26.0 μg/m3 (24) 17.0 μg/m3 (61) 61.0
 
March 30, 2020, 4 p.m. 16.8 ppb (16) 4.4 ppb (4) 18.3 ppb (17) 12.0 ppb (11) 12.6 ppb (12) 0.0 ppb (0) 27.0 ppb (21) 0.22 ppb (2) 27.0 μg/m3 (25) 13.0 μg/m3 (52) 52.0
 
March 30, 2020, 3 p.m. 62.5 ppb (59) 37.6 ppb (35) 61.6 ppb (58) 25.0 ppb (23) 25.2 ppb (23) 1.0 ppb (1) 8.0 ppb (6) 0.41 ppb (5) 49.0 μg/m3 (45) 19.0 μg/m3 (65) 65.0
 
March 30, 2020, 2 p.m. 101.5 ppb (100) 75.2 ppb (73) 101.8 ppb (100) 26.0 ppb (24) 28.4 ppb (26) 1.0 ppb (1) 2.0 ppb (2) 0.7 ppb (8) 59.0 μg/m3 (52) 13.0 μg/m3 (52) 100.0
 
March 30, 2020, 1 p.m. 80.2 ppb (78) 55.9 ppb (52) 86.9 ppb (85) 24.0 ppb (22) 27.1 ppb (25) 1.0 ppb (1) 1.0 ppb (1) 0.62 ppb (7) 37.0 μg/m3 (34) 11.0 μg/m3 (46) 85.0
 
March 30, 2020, noon 67.0 ppb (64) 42.1 ppb (39) 64.7 ppb (61) 25.0 ppb (23) 26.6 ppb (25) 0.0 ppb (0) 1.0 ppb (1) 0.57 ppb (6) 36.0 μg/m3 (33) 7.0 μg/m3 (29) 64.0
 
March 30, 2020, 11 a.m. 44.7 ppb (41) 18.8 ppb (17) 53.5 ppb (50) 26.0 ppb (24) 27.6 ppb (26) 0.0 ppb (0) 1.0 ppb (1) 0.41 ppb (5) 26.0 μg/m3 (24) 5.0 μg/m3 (21) 50.0
 
March 30, 2020, 10 a.m. 29.5 ppb (27) 4.0 ppb (4) 30.0 ppb (28) 26.0 ppb (24) 26.4 ppb (24) 0.0 ppb (0) 1.0 ppb (1) 0.35 ppb (4) 25.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
March 30, 2020, 9 a.m. 19.2 ppb (18) -0.3 ppb (0) 24.9 ppb (23) 20.0 ppb (19) 22.7 ppb (21) 0.0 ppb (0) 8.0 ppb (6) 0.28 ppb (3) 22.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
March 30, 2020, 8 a.m. 14.8 ppb (14) -0.9 ppb (0) 14.9 ppb (14) 16.0 ppb (15) 14.7 ppb (14) 0.0 ppb (0) 16.0 ppb (12) 0.26 ppb (3) 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
March 30, 2020, 7 a.m. 11.2 ppb (10) -1.0 ppb (0) 12.0 ppb (11) 12.0 ppb (11) 12.0 ppb (11) 0.0 ppb (0) 16.0 ppb (12) 0.29 ppb (3) 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
March 30, 2020, 6 a.m. 8.7 ppb (8) -1.2 ppb (0) 9.7 ppb (9) 10.0 ppb (9) 9.7 ppb (9) 0.0 ppb (0) 25.0 ppb (19) 0.29 ppb (3) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
March 30, 2020, 5 a.m. 4.6 ppb (4) -1.3 ppb (0) 6.3 ppb (6) 6.0 ppb (6) 6.3 ppb (6) 0.0 ppb (0) 31.0 ppb (24) 0.34 ppb (4) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
March 30, 2020, 4 a.m. 2.5 ppb (2) -1.4 ppb (0) 4.4 ppb (4) 4.0 ppb (4) 4.3 ppb (4) 0.0 ppb (0) 38.0 ppb (29) 0.24 ppb (3) 22.0 μg/m3 (20) 6.0 μg/m3 (25) 29.0
 
March 30, 2020, 3 a.m. 2.1 ppb (2) -1.4 ppb (0) 4.1 ppb (4) 4.0 ppb (4) 4.0 ppb (4) 0.0 ppb (0) 41.0 ppb (32) 0.16 ppb (2) 20.0 μg/m3 (18) 6.0 μg/m3 (25) 32.0
 
March 30, 2020, 2 a.m. 2.0 ppb (2) -1.3 ppb (0) 3.9 ppb (4) 3.0 ppb (3) 3.8 ppb (4) 0.0 ppb (0) 43.0 ppb (33) 0.15 ppb (2) 22.0 μg/m3 (20) 7.0 μg/m3 (29) 33.0
 
March 30, 2020, 1 a.m. 2.0 ppb (2) -1.4 ppb (0) 4.5 ppb (4) 3.0 ppb (3) 4.3 ppb (4) 0.0 ppb (0) 46.0 ppb (35) 0.15 ppb (2) 23.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
March 30, 2020, midnight 1.7 ppb (2) -1.3 ppb (0) 4.8 ppb (4) 3.0 ppb (3) 4.5 ppb (4) 0.0 ppb (0) 52.0 ppb (40) 0.14 ppb (2) 25.0 μg/m3 (23) 8.0 μg/m3 (33) 40.0
 
March 29, 2020, 11 p.m. 1.4 ppb (1) -1.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (42) 0.15 ppb (2) 23.0 μg/m3 (21) 6.0 μg/m3 (25) 42.0
 
March 29, 2020, 10 p.m. 1.0 ppb (1) -1.2 ppb (0) 3.8 ppb (4) 2.0 ppb (2) 3.5 ppb (3) 0.0 ppb (0) 51.0 ppb (39) 0.14 ppb (2) 18.0 μg/m3 (16) 4.0 μg/m3 (17) 39.0
 
March 29, 2020, 9 p.m. 0.8 ppb (1) -1.3 ppb (0) 3.6 ppb (3) 2.0 ppb (2) 3.4 ppb (3) 0.0 ppb (0) 49.0 ppb (38) 0.14 ppb (2) 20.0 μg/m3 (18) 6.0 μg/m3 (25) 38.0
 
March 29, 2020, 8 p.m. 0.6 ppb (1) -1.3 ppb (0) 3.6 ppb (3) 2.0 ppb (2) 3.4 ppb (3) 0.0 ppb (0) 49.0 ppb (38) 0.13 ppb (1) 20.0 μg/m3 (18) 6.0 μg/m3 (25) 38.0
 
March 29, 2020, 7 p.m. 0.8 ppb (1) -1.2 ppb (0) 3.8 ppb (4) 2.0 ppb (2) 3.6 ppb (3) 0.0 ppb (0) 46.0 ppb (35) 0.13 ppb (1) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 35.0
 
March 29, 2020, 6 p.m. 2.7 ppb (3) -0.7 ppb (0) 6.0 ppb (6) 3.0 ppb (3) 5.3 ppb (5) 0.0 ppb (0) 44.0 ppb (34) 0.14 ppb (2) 23.0 μg/m3 (21) 7.0 μg/m3 (29) 34.0
 
March 29, 2020, 5 p.m. 4.6 ppb (4) -0.2 ppb (0) 7.8 ppb (7) 5.0 ppb (5) 6.6 ppb (6) 0.0 ppb (0) 41.0 ppb (32) 0.17 ppb (2) 37.0 μg/m3 (34) 17.0 μg/m3 (61) 61.0
 
March 29, 2020, 4 p.m. 12.9 ppb (12) 3.0 ppb (3) 15.7 ppb (15) 10.0 ppb (9) 11.3 ppb (10) 0.0 ppb (0) 28.0 ppb (22) 0.21 ppb (2) 30.0 μg/m3 (27) 14.0 μg/m3 (54) 54.0
 
March 29, 2020, 3 p.m. 36.7 ppb (34) 18.2 ppb (17) 38.1 ppb (35) 19.0 ppb (18) 19.8 ppb (18) 0.0 ppb (0) 10.0 ppb (8) 0.32 ppb (4) 30.0 μg/m3 (27) 16.0 μg/m3 (59) 59.0
 
March 29, 2020, 2 p.m. 47.7 ppb (44) 26.1 ppb (24) 48.4 ppb (45) 22.0 ppb (20) 23.2 ppb (21) 0.0 ppb (0) 3.0 ppb (2) 0.44 ppb (5) 30.0 μg/m3 (27) 13.0 μg/m3 (52) 52.0
 
March 29, 2020, 1 p.m. 39.3 ppb (36) 18.2 ppb (17) 42.3 ppb (39) 21.0 ppb (19) 23.5 ppb (22) 0.0 ppb (0) 1.0 ppb (1) 0.41 ppb (5) 25.0 μg/m3 (23) 5.0 μg/m3 (21) 39.0
 
March 29, 2020, noon 26.9 ppb (25) 5.3 ppb (5) 28.3 ppb (26) 22.0 ppb (20) 24.3 ppb (23) 0.0 ppb (0) 1.0 ppb (1) 0.33 ppb (4) 17.0 μg/m3 (15) 2.0 μg/m3 (8) 26.0
 
March 29, 2020, 11 a.m. 20.3 ppb (19) -0.1 ppb (0) 20.4 ppb (19) 20.0 ppb (19) 19.8 ppb (18) 0.0 ppb (0) 4.0 ppb (3) 0.35 ppb (4) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
March 29, 2020, 10 a.m. 20.8 ppb (19) 0.7 ppb (1) 20.3 ppb (19) 20.0 ppb (19) 19.1 ppb (18) 0.0 ppb (0) 5.0 ppb (4) 0.33 ppb (4) 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
March 29, 2020, 9 a.m. 11.0 ppb (10) -1.0 ppb (0) 14.5 ppb (13) 12.0 ppb (11) 14.4 ppb (13) 0.0 ppb (0) 15.0 ppb (12) 0.3 ppb (3) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
March 29, 2020, 8 a.m. 11.9 ppb (11) -1.0 ppb (0) 14.3 ppb (13) 13.0 ppb (12) 14.2 ppb (13) 0.0 ppb (0) 18.0 ppb (14) 0.29 ppb (3) 23.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
March 29, 2020, 7 a.m. 12.6 ppb (12) -1.0 ppb (0) 14.5 ppb (13) 14.0 ppb (13) 14.5 ppb (13) 0.0 ppb (0) 20.0 ppb (15) 0.43 ppb (5) 28.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
March 29, 2020, 6 a.m. 6.9 ppb (6) -1.2 ppb (0) 8.9 ppb (8) 8.0 ppb (7) 8.8 ppb (8) 0.0 ppb (0) 30.0 ppb (23) 0.33 ppb (4) 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
March 29, 2020, 5 a.m. 3.0 ppb (3) -1.3 ppb (0) 5.8 ppb (5) 4.0 ppb (4) 5.7 ppb (5) 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
March 29, 2020, 4 a.m. 2.6 ppb (2) -1.4 ppb (0) 5.0 ppb (5) 4.0 ppb (4) 4.9 ppb (5) 0.0 ppb (0) 42.0 ppb (32) 0.17 ppb (2) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 32.0
 
March 29, 2020, 3 a.m. 2.6 ppb (2) -1.3 ppb (0) 4.9 ppb (5) 4.0 ppb (4) 4.8 ppb (4) 0.0 ppb (0) 45.0 ppb (35) 0.16 ppb (2) 15.0 μg/m3 (14) 2.0 μg/m3 (8) 35.0
 
March 29, 2020, 2 a.m. 2.4 ppb (2) -1.4 ppb (0) 4.7 ppb (4) 4.0 ppb (4) 4.6 ppb (4) 0.0 ppb (0) 47.0 ppb (36) 0.16 ppb (2) 19.0 μg/m3 (17) 1.0 μg/m3 (4) 36.0
 
March 29, 2020, 1 a.m. 1.7 ppb (2) -1.3 ppb (0) 4.5 ppb (4) 3.0 ppb (3) 4.4 ppb (4) 0.0 ppb (0) 52.0 ppb (40) 0.15 ppb (2) 24.0 μg/m3 (22) 5.0 μg/m3 (21) 40.0
 
March 29, 2020, midnight 1.1 ppb (1) -1.4 ppb (0) 4.4 ppb (4) 2.0 ppb (2) 4.3 ppb (4) 0.0 ppb (0) 55.0 ppb (42) 0.14 ppb (2) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 42.0
 
March 28, 2020, 11 p.m. 1.0 ppb (1) -1.3 ppb (0) 4.3 ppb (4) 2.0 ppb (2) 4.2 ppb (4) 0.0 ppb (0) 54.0 ppb (42) 0.14 ppb (2) 19.0 μg/m3 (17) 5.0 μg/m3 (21) 42.0
 
March 28, 2020, 10 p.m. 0.8 ppb (1) -1.3 ppb (0) 4.3 ppb (4) 2.0 ppb (2) 4.1 ppb (4) 0.0 ppb (0) 53.0 ppb (41) 0.13 ppb (1) 18.0 μg/m3 (16) 5.0 μg/m3 (21) 41.0
 
March 28, 2020, 9 p.m. 1.1 ppb (1) -1.1 ppb (0) 4.5 ppb (4) 2.0 ppb (2) 4.2 ppb (4) 0.0 ppb (0) 51.0 ppb (39) 0.13 ppb (1) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 39.0
 
March 28, 2020, 8 p.m. 1.1 ppb (1) -1.1 ppb (0) 4.8 ppb (4) 2.0 ppb (2) 4.4 ppb (4) 0.0 ppb (0) 49.0 ppb (38) 0.13 ppb (1) 19.0 μg/m3 (17) 8.0 μg/m3 (33) 38.0
 
March 28, 2020, 7 p.m. 4.4 ppb (4) -0.1 ppb (0) 7.4 ppb (7) 5.0 ppb (5) 6.1 ppb (6) 0.0 ppb (0) 46.0 ppb (35) 0.14 ppb (2) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
March 28, 2020, 6 p.m. 3.7 ppb (3) -0.3 ppb (0) 6.4 ppb (6) 4.0 ppb (4) 5.2 ppb (5) 0.0 ppb (0) 44.0 ppb (34) 0.14 ppb (2) 20.0 μg/m3 (18) 18.0 μg/m3 (63) 63.0
 
March 28, 2020, 5 p.m. 5.1 ppb (5) 0.1 ppb (0) 7.6 ppb (7) 5.0 ppb (5) 6.0 ppb (6) 0.0 ppb (0) 39.0 ppb (30) 0.15 ppb (2) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
March 28, 2020, 4 p.m. 12.9 ppb (12) 3.0 ppb (3) 14.9 ppb (14) 10.0 ppb (9) 10.5 ppb (10) 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 26.0 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
March 28, 2020, 3 p.m. 40.1 ppb (37) 19.7 ppb (18) 41.5 ppb (38) 20.0 ppb (19) 21.1 ppb (20) 0.0 ppb (0) 10.0 ppb (8) 0.3 ppb (3) 30.0 μg/m3 (27) 8.0 μg/m3 (33) 38.0
 
March 28, 2020, 2 p.m. 54.6 ppb (51) 30.3 ppb (28) 55.2 ppb (51) 24.0 ppb (22) 25.5 ppb (24) 1.0 ppb (1) 3.0 ppb (2) 0.36 ppb (4) 27.0 μg/m3 (25) 8.0 μg/m3 (33) 51.0
 
March 28, 2020, 1 p.m. 39.5 ppb (37) 13.5 ppb (12) 41.7 ppb (39) 26.0 ppb (24) 28.0 ppb (26) 0.0 ppb (0) 1.0 ppb (1) 0.34 ppb (4) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 39.0
 
March 28, 2020, noon 41.9 ppb (39) 16.0 ppb (15) 44.8 ppb (41) 26.0 ppb (24) 27.6 ppb (26) 0.0 ppb (0) 1.0 ppb (1) 0.34 ppb (4) 25.0 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
March 28, 2020, 11 a.m. 39.2 ppb (36) 13.0 ppb (12) 41.2 ppb (38) 26.0 ppb (24) 27.7 ppb (26) 0.0 ppb (0) 1.0 ppb (1) 0.34 ppb (4) 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
March 28, 2020, 10 a.m. 31.3 ppb (29) 6.6 ppb (6) 31.9 ppb (30) 25.0 ppb (23) 27.4 ppb (25) 0.0 ppb (0) 1.0 ppb (1) 0.36 ppb (4) 23.0 μg/m3 (21) 6.0 μg/m3 (25) 30.0
 
March 28, 2020, 9 a.m. 29.0 ppb (27) 1.9 ppb (2) 31.0 ppb (29) 27.0 ppb (25) 28.7 ppb (27) 0.0 ppb (0) 1.0 ppb (1) 0.41 ppb (5) 25.0 μg/m3 (23) 8.0 μg/m3 (33) 33.0
 
March 28, 2020, 8 a.m. 23.5 ppb (22) -0.2 ppb (0) 25.3 ppb (23) 24.0 ppb (22) 24.8 ppb (23) 0.0 ppb (0) 5.0 ppb (4) 0.39 ppb (4) 29.0 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
March 28, 2020, 7 a.m. 14.4 ppb (13) -0.7 ppb (0) 16.7 ppb (15) 15.0 ppb (14) 16.4 ppb (15) 0.0 ppb (0) 14.0 ppb (11) 0.31 ppb (3) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
March 28, 2020, 6 a.m. 15.6 ppb (14) -0.8 ppb (0) 16.6 ppb (15) 16.0 ppb (15) 16.4 ppb (15) 0.0 ppb (0) 17.0 ppb (13) 0.39 ppb (4) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 5 a.m. 18.5 ppb (17) -0.9 ppb (0) 20.1 ppb (19) 19.0 ppb (18) 19.9 ppb (18) 0.0 ppb (0) 20.0 ppb (15) 0.31 ppb (3) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 4 a.m. 4.4 ppb (4) -1.3 ppb (0) 6.4 ppb (6) 6.0 ppb (6) 6.4 ppb (6) 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 28.0
 
March 28, 2020, 3 a.m. 2.3 ppb (2) -1.3 ppb (0) 4.5 ppb (4) 4.0 ppb (4) 4.5 ppb (4) 0.0 ppb (0) 40.0 ppb (31) 0.15 ppb (2) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 31.0
 
March 28, 2020, 2 a.m. 1.9 ppb (2) -1.4 ppb (0) 4.4 ppb (4) 3.0 ppb (3) 4.3 ppb (4) 0.0 ppb (0) 43.0 ppb (33) 0.14 ppb (2) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 33.0
 
March 28, 2020, 1 a.m. 1.8 ppb (2) -1.2 ppb (0) 4.5 ppb (4) 3.0 ppb (3) 4.4 ppb (4) 0.0 ppb (0) 46.0 ppb (35) 0.13 ppb (1) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 35.0
 
March 28, 2020, midnight 2.1 ppb (2) -1.0 ppb (0) 5.4 ppb (5) 3.0 ppb (3) 5.0 ppb (5) 0.0 ppb (0) 49.0 ppb (38) 0.14 ppb (2) 15.0 μg/m3 (14) 2.0 μg/m3 (8) 38.0
 
March 27, 2020, 11 p.m. 2.5 ppb (2) -0.8 ppb (0) 6.7 ppb (6) 3.0 ppb (3) 6.1 ppb (6) 0.0 ppb (0) 50.0 ppb (38) 0.14 ppb (2) 17.0 μg/m3 (15) 1.0 μg/m3 (4) 38.0
 
March 27, 2020, 10 p.m. 3.4 ppb (3) -0.5 ppb (0) 6.7 ppb (6) 4.0 ppb (4) 5.7 ppb (5) 0.0 ppb (0) 47.0 ppb (36) 0.16 ppb (2) 20.0 μg/m3 (18) 0.0 μg/m3 (0) 36.0
 
March 27, 2020, 9 p.m. 1.6 ppb (1) -0.8 ppb (0) 4.5 ppb (4) 2.0 ppb (2) 3.9 ppb (4) 0.0 ppb (0) 47.0 ppb (36) 0.13 ppb (1) 11.0 μg/m3 (10) 0.0 μg/m3 (0) 36.0
 
March 27, 2020, 8 p.m. 1.6 ppb (1) -0.8 ppb (0) 4.3 ppb (4) 2.0 ppb (2) 3.7 ppb (3) 0.0 ppb (0) 46.0 ppb (35) 0.13 ppb (1) 11.0 μg/m3 (10) 1.0 μg/m3 (4) 35.0
 
March 27, 2020, 7 p.m. 1.6 ppb (1) -0.7 ppb (0) 4.3 ppb (4) 2.0 ppb (2) 3.6 ppb (3) 0.0 ppb (0) 44.0 ppb (34) 0.12 ppb (1) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 34.0
 
March 27, 2020, 6 p.m. 2.6 ppb (2) -0.4 ppb (0) 4.9 ppb (5) 3.0 ppb (3) 3.9 ppb (4) 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 32.0
 
March 27, 2020, 5 p.m. 7.6 ppb (7) 1.4 ppb (1) 9.7 ppb (9) 6.0 ppb (6) 6.9 ppb (6) 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
March 27, 2020, 4 p.m. 15.5 ppb (14) 4.6 ppb (4) 15.4 ppb (14) 11.0 ppb (10) 10.4 ppb (10) 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) 24.0 μg/m3 (22) 21.0 μg/m3 (69) 69.0