ID: 861

AQSQID: 490353006

Site Name: Hawthorne

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

Updated: June 3, 2020, 3:33 p.m.

Location: Salt Lake City (Liberty Wells), UT

Reporting: True, Located: True

Current AQI: 28.0

Salt Lake City (Liberty Wells) UT, US: 40.733501, -111.871696

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 27, 2020, 2 p.m. 44.2 ppb (41) 17.2 ppb (16) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 16.0 ppb (12) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 41.0
 
May 27, 2020, 1 p.m. 39.6 ppb (37) 14.3 ppb (13) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 15.0 ppb (12) 0.0 ppb (0) N/A 4.5 μg/m3 (19) 37.0
 
May 27, 2020, noon 17.6 ppb (16) 2.6 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 24.0 ppb (18) 0.0 ppb (0) N/A 4.5 μg/m3 (19) 19.0
 
May 27, 2020, 11 a.m. 81.7 ppb (79) 30.2 ppb (28) N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 4.3 μg/m3 (18) 79.0
 
May 27, 2020, 10 a.m. 11.7 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 22.0 ppb (17) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 17.0
 
May 27, 2020, 9 a.m. 7.5 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 16.0
 
May 27, 2020, 8 a.m. 8.6 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 28.0 ppb (22) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 22.0
 
May 27, 2020, 7 a.m. 6.8 ppb (6) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 31.0 ppb (24) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 24.0
 
May 27, 2020, 6 a.m. 5.4 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 35.0 ppb (27) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 27.0
 
May 27, 2020, 5 a.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 42.0 ppb (32) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 32.0
 
May 27, 2020, 4 a.m. 6.9 ppb (6) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 32.0
 
May 27, 2020, 3 a.m. 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 32.0
 
May 27, 2020, 2 a.m. 6.9 ppb (6) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 34.0
 
May 27, 2020, 1 a.m. 7.2 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 54.0 ppb (42) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 42.0
 
May 27, 2020, midnight 5.4 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 62.0 ppb (48) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 48.0
 
May 26, 2020, 11 p.m. 5.2 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 63.0 ppb (48) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 48.0
 
May 26, 2020, 10 p.m. 5.4 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 66.0 ppb (51) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 51.0
 
May 26, 2020, 9 p.m. 6.2 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 64.0 ppb (49) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 49.0
 
May 26, 2020, 8 p.m. 7.7 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 60.0 ppb (46) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 46.0
 
May 26, 2020, 7 p.m. 5.1 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 59.0 ppb (45) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 45.0
 
May 26, 2020, 6 p.m. 6.2 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 55.0 ppb (42) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 42.0
 
May 26, 2020, 5 p.m. 8.0 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 52.0 ppb (40) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 40.0
 
May 26, 2020, 4 p.m. 15.0 ppb (14) 4.9 ppb (5) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 32.0
 
May 26, 2020, 3 p.m. 23.7 ppb (22) 8.0 ppb (7) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 23.0
 
May 26, 2020, 2 p.m. 30.2 ppb (28) 9.8 ppb (9) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 23.0 ppb (18) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 28.0
 
May 26, 2020, 1 p.m. 27.2 ppb (25) 6.1 ppb (6) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 25.0
 
May 26, 2020, noon 23.5 ppb (22) 3.8 ppb (4) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 22.0
 
May 26, 2020, 11 a.m. 15.5 ppb (14) 1.5 ppb (1) N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 19.0
 
May 26, 2020, 10 a.m. 8.6 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 24.0
 
May 26, 2020, 9 a.m. 7.0 ppb (6) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 19.0
 
May 26, 2020, 8 a.m. 9.4 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 26.0
 
May 26, 2020, 7 a.m. 9.1 ppb (8) 0.7 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 27.0
 
May 26, 2020, 6 a.m. 5.9 ppb (5) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 30.0
 
May 26, 2020, 5 a.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 33.0
 
May 26, 2020, 4 a.m. 4.1 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 30.0
 
May 26, 2020, 3 a.m. 7.8 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 28.0
 
May 26, 2020, 2 a.m. 6.4 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 34.0
 
May 26, 2020, 1 a.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (39) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 39.0
 
May 26, 2020, midnight 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (41) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 41.0
 
May 25, 2020, 11 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (41) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 41.0
 
May 25, 2020, 10 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (42) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 42.0
 
May 25, 2020, 9 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (41) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 41.0
 
May 25, 2020, 8 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (40) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 40.0
 
May 25, 2020, 7 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 39.0
 
May 25, 2020, 6 p.m. 3.1 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 38.0
 
May 25, 2020, 5 p.m. 4.0 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 35.0
 
May 25, 2020, 4 p.m. 7.6 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 32.0
 
May 25, 2020, 3 p.m. 9.7 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 26.0
 
May 25, 2020, 2 p.m. 11.9 ppb (11) 4.8 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 22.0
 
May 25, 2020, 1 p.m. 17.4 ppb (16) 6.3 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (17) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 17.0
 
May 25, 2020, noon 9.3 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 18.0
 
May 25, 2020, 11 a.m. 5.2 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.5 μg/m3 (10) 22.0
 
May 25, 2020, 10 a.m. 5.7 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 19.0
 
May 25, 2020, 9 a.m. 3.4 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 17.0
 
May 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
May 25, 2020, 7 a.m. 4.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 3.0 μg/m3 (12) 24.0
 
May 25, 2020, 6 a.m. 5.6 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 22.0
 
May 25, 2020, 5 a.m. 3.3 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 27.0
 
May 25, 2020, 4 a.m. 4.7 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 25.0
 
May 25, 2020, 3 a.m. 7.6 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 26.0
 
May 25, 2020, 2 a.m. 3.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 32.0
 
May 25, 2020, 1 a.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 35.0
 
May 25, 2020, midnight 2.1 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 35.0
 
May 24, 2020, 11 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 35.0
 
May 24, 2020, 10 p.m. 2.6 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 35.0
 
May 24, 2020, 9 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 35.0
 
May 24, 2020, 8 p.m. 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 35.0
 
May 24, 2020, 7 p.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 35.0
 
May 24, 2020, 6 p.m. 3.3 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 35.0
 
May 24, 2020, 5 p.m. 4.4 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 32.0
 
May 24, 2020, 4 p.m. 7.1 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 31.0
 
May 24, 2020, 3 p.m. 10.6 ppb (10) 4.1 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 27.0
 
May 24, 2020, 2 p.m. 7.3 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 25.0
 
May 24, 2020, 1 p.m. 6.9 ppb (6) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 23.0
 
May 24, 2020, noon 6.7 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 21.0
 
May 24, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 18.0
 
May 24, 2020, 10 a.m. 4.9 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 22.0
 
May 24, 2020, 9 a.m. 4.3 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 16.0
 
May 24, 2020, 8 a.m. 9.7 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 16.0
 
May 24, 2020, 7 a.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 3.0 μg/m3 (12) 25.0
 
May 24, 2020, 6 a.m. 8.1 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 21.0
 
May 24, 2020, 5 a.m. 3.9 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 25.0
 
May 24, 2020, 4 a.m. 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 3.0 μg/m3 (12) 26.0
 
May 24, 2020, 3 a.m. 6.2 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 25.0
 
May 24, 2020, 2 a.m. 3.5 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 32.0
 
May 24, 2020, 1 a.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 33.0
 
May 24, 2020, midnight 1.6 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 35.0
 
May 23, 2020, 11 p.m. 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 35.0
 
May 23, 2020, 10 p.m. 1.5 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 34.0
 
May 23, 2020, 9 p.m. 1.6 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 35.0
 
May 23, 2020, 8 p.m. 1.3 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 38.0
 
May 23, 2020, 7 p.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 38.0
 
May 23, 2020, 6 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 37.0
 
May 23, 2020, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 35.0
 
May 23, 2020, 4 p.m. 2.7 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 35.0
 
May 23, 2020, 3 p.m. 2.8 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 33.0
 
May 23, 2020, 2 p.m. 3.6 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 32.0
 
May 23, 2020, 1 p.m. 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 34.0
 
May 23, 2020, noon 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 4.6 μg/m3 (19) 32.0
 
May 23, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 32.0
 
May 23, 2020, 10 a.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (38) 0.0 ppb (0) N/A 5.6 μg/m3 (23) 38.0
 
May 23, 2020, 9 a.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 6.3 μg/m3 (26) 27.0
 
May 23, 2020, 8 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 7.5 μg/m3 (31) 35.0
 
May 23, 2020, 7 a.m. 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.0 ppb (0) N/A 9.6 μg/m3 (40) 40.0
 
May 23, 2020, 6 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 9.4 μg/m3 (39) 39.0
 
May 23, 2020, 5 a.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.0 ppb (0) N/A 8.6 μg/m3 (36) 37.0
 
May 23, 2020, 4 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.0 ppb (0) N/A 8.9 μg/m3 (37) 37.0
 
May 23, 2020, 3 a.m. 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 9.4 μg/m3 (39) 39.0
 
May 23, 2020, 2 a.m. 3.3 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 9.0 μg/m3 (38) 38.0
 
May 23, 2020, 1 a.m. 3.7 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 13.7 μg/m3 (54) 54.0
 
May 23, 2020, midnight 3.0 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 20.7 μg/m3 (69) 69.0
 
May 22, 2020, 11 p.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 46.0 ppb (35) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 35.0
 
May 22, 2020, 10 p.m. 6.6 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 37.0
 
May 22, 2020, 9 p.m. 7.2 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 52.0 ppb (40) 0.0 ppb (0) N/A 2.9 μg/m3 (12) 40.0
 
May 22, 2020, 8 p.m. 8.1 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 51.0 ppb (39) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 39.0
 
May 22, 2020, 7 p.m. 7.6 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 51.0 ppb (39) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 39.0
 
May 22, 2020, 6 p.m. 8.2 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 44.0 ppb (34) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 34.0
 
May 22, 2020, 5 p.m. 11.5 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 40.0 ppb (31) 0.0 ppb (0) N/A 3.0 μg/m3 (12) 31.0
 
May 22, 2020, 4 p.m. 22.5 ppb (21) 8.3 ppb (8) N/A 14.0 ppb (13) N/A 2.0 ppb (3) 29.0 ppb (22) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 22.0
 
May 22, 2020, 3 p.m. 29.2 ppb (27) 12.3 ppb (11) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 24.0 ppb (18) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 27.0
 
May 22, 2020, 2 p.m. 14.5 ppb (13) 5.5 ppb (5) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 28.0 ppb (22) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 22.0
 
May 22, 2020, 1 p.m. 13.5 ppb (12) 3.3 ppb (3) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 24.0 ppb (18) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 18.0
 
May 22, 2020, noon 10.8 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 24.0 ppb (18) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 20.0
 
May 22, 2020, 11 a.m. 6.6 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) 0.0 ppb (0) N/A 4.5 μg/m3 (19) 22.0
 
May 22, 2020, 10 a.m. 7.0 ppb (6) 0.6 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 32.0 ppb (25) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 25.0
 
May 22, 2020, 9 a.m. 6.2 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 29.0 ppb (22) 0.0 ppb (0) N/A 2.9 μg/m3 (12) 22.0
 
May 22, 2020, 8 a.m. 6.0 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 40.0 ppb (31) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 31.0
 
May 22, 2020, 7 a.m. 7.7 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 28.0
 
May 22, 2020, 6 a.m. 10.6 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 31.0 ppb (24) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 24.0
 
May 22, 2020, 5 a.m. 11.7 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 31.0 ppb (24) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 24.0
 
May 22, 2020, 4 a.m. 13.0 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 25.0
 
May 22, 2020, 3 a.m. 8.9 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 47.0 ppb (36) 0.0 ppb (0) N/A 2.9 μg/m3 (12) 36.0
 
May 22, 2020, 2 a.m. 7.2 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 37.0
 
May 22, 2020, 1 a.m. 4.5 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 38.0
 
May 22, 2020, midnight 5.3 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 52.0 ppb (40) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 40.0
 
May 21, 2020, 11 p.m. 4.3 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 58.0 ppb (45) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 45.0
 
May 21, 2020, 10 p.m. 5.3 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 64.0 ppb (49) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 49.0
 
May 21, 2020, 9 p.m. 5.7 ppb (5) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 61.0 ppb (47) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 47.0
 
May 21, 2020, 8 p.m. 4.8 ppb (4) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 62.0 ppb (48) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 48.0
 
May 21, 2020, 7 p.m. 5.7 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 54.0 ppb (42) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 42.0
 
May 21, 2020, 6 p.m. 6.0 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 47.0 ppb (36) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 36.0
 
May 21, 2020, 5 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 33.0
 
May 21, 2020, 4 p.m. 5.3 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 40.0 ppb (31) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 31.0
 
May 21, 2020, 3 p.m. 4.7 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 30.0
 
May 21, 2020, 2 p.m. 16.3 ppb (15) 5.8 ppb (5) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 28.0 ppb (22) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 22.0
 
May 21, 2020, 1 p.m. 24.5 ppb (23) 8.2 ppb (8) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 17.0 ppb (13) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 23.0
 
May 21, 2020, noon 9.4 ppb (9) 1.1 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 19.0 ppb (15) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 18.0
 
May 21, 2020, 11 a.m. 6.8 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 20.0
 
May 21, 2020, 10 a.m. 5.1 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 22.0
 
May 21, 2020, 9 a.m. 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 17.0 ppb (13) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 23.0
 
May 21, 2020, 8 a.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 20.0 ppb (15) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 25.0
 
May 21, 2020, 7 a.m. 3.7 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) 0.0 ppb (0) N/A 5.8 μg/m3 (24) 24.0
 
May 21, 2020, 6 a.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 26.0
 
May 21, 2020, 5 a.m. 7.6 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 19.0
 
May 21, 2020, 4 a.m. 6.2 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 22.0
 
May 21, 2020, 3 a.m. 5.7 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 32.0 ppb (25) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 25.0
 
May 21, 2020, 2 a.m. 5.8 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) 0.0 ppb (0) N/A 4.5 μg/m3 (19) 26.0
 
May 21, 2020, 1 a.m. 4.9 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 38.0 ppb (29) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 29.0
 
May 21, 2020, midnight 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 38.0 ppb (29) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 29.0
 
May 20, 2020, 11 p.m. 4.4 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 4.5 μg/m3 (19) 34.0
 
May 20, 2020, 10 p.m. 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 38.0
 
May 20, 2020, 9 p.m. 4.2 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 6.8 μg/m3 (28) 37.0
 
May 20, 2020, 8 p.m. 6.9 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) 0.0 ppb (0) N/A 8.1 μg/m3 (34) 34.0
 
May 20, 2020, 7 p.m. 9.0 ppb (8) 2.5 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 38.0 ppb (29) 0.0 ppb (0) N/A 8.1 μg/m3 (34) 34.0
 
May 20, 2020, 6 p.m. 4.2 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 37.0
 
May 20, 2020, 5 p.m. 3.6 ppb (3) 1.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 37.0
 
May 20, 2020, 4 p.m. 4.6 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 38.0
 
May 20, 2020, 3 p.m. 7.0 ppb (6) 2.6 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 38.0