AQSQID: 040134005

Site Name: Tempe

Location: Tempe, AZ

Reporting: True, Located: True

Current AQI: 28.0

Tempe AZ, US: 33.4124, -111.9347

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 25, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 16.0 μg/m3 (15) 5.9 μg/m3 (25) 28.0
 
May 25, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 15.0 μg/m3 (14) 5.1 μg/m3 (21) 25.0
 
May 25, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 5.3 μg/m3 (22) 22.0
 
May 25, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) 3.5 μg/m3 (15) 22.0
 
May 25, 2019, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 10.0 μg/m3 (9) 4.9 μg/m3 (20) 28.0
 
May 25, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 22.0
 
May 25, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 10.0 μg/m3 (9) 3.8 μg/m3 (16) 21.0
 
May 25, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 11.0 μg/m3 (10) 3.6 μg/m3 (15) 19.0
 
May 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 35.0 μg/m3 (32) 8.9 μg/m3 (37) 37.0
 
May 25, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
May 25, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 16.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
May 25, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 4.7 μg/m3 (20) 20.0
 
May 25, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 25.0
 
May 25, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 10.0 μg/m3 (9) 3.8 μg/m3 (16) 33.0
 
May 25, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 41.0
 
May 25, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 6.0 μg/m3 (5) 1.4 μg/m3 (6) 42.0
 
May 25, 2019, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (9) 40.0
 
May 24, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 42.0
 
May 24, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 42.0
 
May 24, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 5.0 μg/m3 (5) 1.6 μg/m3 (7) 42.0
 
May 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 8.0 μg/m3 (7) 3.1 μg/m3 (13) 40.0
 
May 24, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 36.0
 
May 24, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 34.0
 
May 24, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) 2.2 μg/m3 (9) 32.0
 
May 24, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 7.0 μg/m3 (6) 0.8 μg/m3 (3) 30.0
 
May 24, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 12.0 μg/m3 (11) 2.2 μg/m3 (9) 28.0
 
May 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 3.2 μg/m3 (13) 22.0
 
May 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 9.0 μg/m3 (8) 1.1 μg/m3 (5) 19.0
 
May 24, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 8.0 μg/m3 (7) 2.5 μg/m3 (10) 16.0
 
May 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 3.3 μg/m3 (14) 16.0
 
May 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 11.0 μg/m3 (10) 3.8 μg/m3 (16) 22.0
 
May 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
May 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 13.0 μg/m3 (12) 4.9 μg/m3 (20) 20.0
 
May 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 18.0
 
May 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 2.6 μg/m3 (11) 25.0
 
May 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 29.0
 
May 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 26.0
 
May 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 31.0
 
May 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 35.0
 
May 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 37.0
 
May 24, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 35.0
 
May 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 35.0
 
May 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 34.0
 
May 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 5.0 μg/m3 (5) 2.5 μg/m3 (10) 33.0
 
May 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 4.0 μg/m3 (4) 1.1 μg/m3 (5) 34.0
 
May 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 33.0
 
May 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 3.9 μg/m3 (16) 33.0
 
May 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 11.0 μg/m3 (10) 4.1 μg/m3 (17) 32.0
 
May 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 31.0
 
May 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 29.0
 
May 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 28.0
 
May 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 24.0
 
May 23, 2019, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 25.0
 
May 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 26.0
 
May 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 31.0
 
May 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 19.0 μg/m3 (17) 3.9 μg/m3 (16) 33.0
 
May 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 29.0 μg/m3 (26) 3.2 μg/m3 (13) 33.0
 
May 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 28.0
 
May 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 9.0 μg/m3 (8) 3.1 μg/m3 (13) 32.0
 
May 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 16.0 μg/m3 (15) 3.4 μg/m3 (14) 35.0
 
May 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 82.0 μg/m3 (64) 4.8 μg/m3 (20) 64.0
 
May 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 32.0 μg/m3 (29) 3.2 μg/m3 (13) 31.0
 
May 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 33.0
 
May 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 1.8 μg/m3 (8) 35.0
 
May 23, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) 3.4 μg/m3 (14) 35.0
 
May 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 11.0 μg/m3 (10) 1.6 μg/m3 (7) 36.0
 
May 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 11.0 μg/m3 (10) 3.1 μg/m3 (13) 36.0
 
May 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 13.0 μg/m3 (12) 3.8 μg/m3 (16) 36.0
 
May 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 37.0
 
May 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 17.0 μg/m3 (15) 5.3 μg/m3 (22) 37.0
 
May 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 19.0 μg/m3 (17) 5.5 μg/m3 (23) 35.0
 
May 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 23.0 μg/m3 (21) 5.0 μg/m3 (21) 34.0
 
May 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 24.0 μg/m3 (22) 2.6 μg/m3 (11) 32.0
 
May 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 30.0 μg/m3 (27) 4.5 μg/m3 (19) 31.0
 
May 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 38.0 μg/m3 (35) 6.3 μg/m3 (26) 35.0
 
May 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 48.0 μg/m3 (44) 10.1 μg/m3 (42) 44.0
 
May 22, 2019, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 39.0 μg/m3 (35) 7.5 μg/m3 (31) 35.0
 
May 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 43.0 μg/m3 (39) 7.8 μg/m3 (32) 39.0
 
May 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 58.0 μg/m3 (52) 9.6 μg/m3 (40) 52.0
 
May 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 68.0 μg/m3 (56) 11.2 μg/m3 (47) 56.0
 
May 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 77.0 μg/m3 (61) 12.7 μg/m3 (51) 61.0
 
May 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 83.0 μg/m3 (64) 14.1 μg/m3 (54) 64.0
 
May 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 58.0 μg/m3 (52) 10.1 μg/m3 (42) 52.0
 
May 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 19.0 μg/m3 (17) 4.7 μg/m3 (20) 35.0
 
May 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 16.0 μg/m3 (15) 4.4 μg/m3 (18) 36.0
 
May 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 18.0 μg/m3 (16) 3.9 μg/m3 (16) 40.0
 
May 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 16.0 μg/m3 (15) 2.1 μg/m3 (9) 40.0
 
May 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 18.0 μg/m3 (16) 2.8 μg/m3 (12) 39.0
 
May 22, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 25.0 μg/m3 (23) 2.3 μg/m3 (10) 39.0
 
May 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 17.0 μg/m3 (15) 1.9 μg/m3 (8) 38.0
 
May 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 15.0 μg/m3 (14) 3.3 μg/m3 (14) 37.0
 
May 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 12.0 μg/m3 (11) 1.6 μg/m3 (7) 36.0
 
May 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 16.0 μg/m3 (15) 0.7 μg/m3 (3) 38.0
 
May 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 15.0 μg/m3 (14) 2.8 μg/m3 (12) 37.0
 
May 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 17.0 μg/m3 (15) 5.6 μg/m3 (23) 35.0
 
May 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 13.0 μg/m3 (12) 2.2 μg/m3 (9) 34.0
 
May 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.6 μg/m3 (23) 23.0
 
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 11.0 μg/m3 (10) 1.2 μg/m3 (5) 19.0
 
May 21, 2019, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 0.3 μg/m3 (1) 22.0
 
May 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 25.0
 
May 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 27.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 29.0
 
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 30.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 30.0
 
May 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 6.0 μg/m3 (5) 2.4 μg/m3 (10) 31.0
 
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 31.0
 
May 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 3.3 μg/m3 (14) 30.0
 
May 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) 0.9 μg/m3 (4) 34.0
 
May 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) 0.4 μg/m3 (2) 35.0
 
May 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 11.0 μg/m3 (10) 1.4 μg/m3 (6) 36.0
 
May 21, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 15.0 μg/m3 (14) 1.4 μg/m3 (6) 36.0
 
May 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 22.0 μg/m3 (20) 2.8 μg/m3 (12) 37.0
 
May 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 17.0 μg/m3 (15) 3.1 μg/m3 (13) 36.0
 
May 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 19.0 μg/m3 (17) 2.7 μg/m3 (11) 35.0
 
May 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 16.0 μg/m3 (15) 0.5 μg/m3 (2) 35.0
 
May 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) 0.3 μg/m3 (1) 35.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 12.0 μg/m3 (11) 1.0 μg/m3 (4) 34.0
 
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 17.0 μg/m3 (15) 2.6 μg/m3 (11) 33.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 28.0 μg/m3 (25) 4.2 μg/m3 (18) 32.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 25.0 μg/m3 (23) 5.5 μg/m3 (23) 30.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 22.0 μg/m3 (20) 4.6 μg/m3 (19) 31.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 20.0 μg/m3 (18) 3.3 μg/m3 (14) 30.0
 
May 20, 2019, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 1.4 μg/m3 (6) 33.0
 
May 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 13.0 μg/m3 (12) 4.1 μg/m3 (17) 34.0
 
May 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 16.0 μg/m3 (15) 4.9 μg/m3 (20) 35.0
 
May 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 17.0 μg/m3 (15) 4.2 μg/m3 (18) 35.0
 
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 26.0 μg/m3 (24) 7.0 μg/m3 (29) 33.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 16.0 μg/m3 (15) 4.4 μg/m3 (18) 28.0
 
May 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 12.0 μg/m3 (11) 3.7 μg/m3 (15) 26.0
 
May 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 23.0
 
May 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 24.0
 
May 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 16.0 μg/m3 (15) 2.6 μg/m3 (11) 25.0
 
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 2.6 μg/m3 (11) 29.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 12.0 μg/m3 (11) 4.9 μg/m3 (20) 30.0
 
May 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 13.0 μg/m3 (12) 3.4 μg/m3 (14) 32.0
 
May 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 36.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 15.0 μg/m3 (14) 5.6 μg/m3 (23) 38.0
 
May 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 14.0 μg/m3 (13) 4.3 μg/m3 (18) 37.0
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 36.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 37.0
 
May 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 36.0
 
May 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 19.0 μg/m3 (17) 7.8 μg/m3 (32) 32.0
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 17.0 μg/m3 (15) 3.3 μg/m3 (14) 21.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 20.0 μg/m3 (18) 4.5 μg/m3 (19) 19.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 19.0 μg/m3 (17) 5.8 μg/m3 (24) 24.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 4.5 μg/m3 (19) 19.0
 
May 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
May 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 24.0 μg/m3 (22) 4.2 μg/m3 (18) 22.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 12.0 μg/m3 (11) 4.7 μg/m3 (20) 22.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 19.0 μg/m3 (17) 8.6 μg/m3 (36) 36.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 36.0 μg/m3 (33) 11.9 μg/m3 (50) 50.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 23.0 μg/m3 (21) 4.9 μg/m3 (20) 21.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 1.2 μg/m3 (5) 22.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 5.0 μg/m3 (5) -0.3 μg/m3 (0) 31.0
 
May 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 34.0
 
May 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) 1.6 μg/m3 (7) 35.0
 
May 19, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 36.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 6.0 μg/m3 (5) 0.5 μg/m3 (2) 38.0
 
May 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 38.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 39.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 38.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 35.0
 
May 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 33.0
 
May 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 5.1 μg/m3 (21) 31.0