AQSQID: 040130019

Site Name: West Phoenix

Location: Phoenix (W Earll Dr), AZ

Reporting: True, Located: True

Current AQI: 38.0

Phoenix (W Earll Dr) AZ, US: 33.483799, -112.142601

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 24, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 38.0
 
May 23, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 6.0 μg/m3 (5) 2.9 μg/m3 (12) 39.0
 
May 23, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.3 ppb (3) 6.0 μg/m3 (5) 2.3 μg/m3 (10) 38.0
 
May 23, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.3 ppb (3) 7.0 μg/m3 (6) 3.3 μg/m3 (14) 38.0
 
May 23, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 36.0
 
May 23, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.3 ppb (3) 6.0 μg/m3 (5) 2.1 μg/m3 (9) 36.0
 
May 23, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.3 ppb (3) 7.0 μg/m3 (6) 2.5 μg/m3 (10) 35.0
 
May 23, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.3 ppb (3) 8.0 μg/m3 (7) 2.6 μg/m3 (11) 35.0
 
May 23, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.3 ppb (3) 12.0 μg/m3 (11) 4.3 μg/m3 (18) 32.0
 
May 23, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.3 ppb (3) 13.0 μg/m3 (12) 4.6 μg/m3 (19) 32.0
 
May 23, 2019, 2 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) 0.4 ppb (4) 11.0 μg/m3 (10) 4.3 μg/m3 (18) 28.0
 
May 23, 2019, 1 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 30.0 ppb (23) 0.4 ppb (4) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 23.0
 
May 23, 2019, noon N/A N/A N/A 13.0 ppb (12) N/A N/A 30.0 ppb (23) 0.4 ppb (4) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 23.0
 
May 23, 2019, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) 0.4 ppb (4) 9.0 μg/m3 (8) 5.4 μg/m3 (23) 29.0
 
May 23, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.3 ppb (3) 12.0 μg/m3 (11) 6.9 μg/m3 (29) 35.0
 
May 23, 2019, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.3 ppb (3) 12.0 μg/m3 (11) 5.9 μg/m3 (25) 34.0
 
May 23, 2019, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.3 ppb (3) 15.0 μg/m3 (14) 4.7 μg/m3 (20) 33.0
 
May 23, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.3 ppb (3) 17.0 μg/m3 (15) 4.2 μg/m3 (18) 32.0
 
May 23, 2019, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.3 ppb (3) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 32.0
 
May 23, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) 0.3 ppb (3) 16.0 μg/m3 (15) 3.1 μg/m3 (13) 35.0
 
May 23, 2019, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) 0.3 ppb (3) 15.0 μg/m3 (14) 3.1 μg/m3 (13) 35.0
 
May 23, 2019, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.3 ppb (3) 11.0 μg/m3 (10) 1.4 μg/m3 (6) 34.0
 
May 23, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) 0.3 ppb (3) 14.0 μg/m3 (13) 3.7 μg/m3 (15) 35.0
 
May 23, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) 0.3 ppb (3) 13.0 μg/m3 (12) 2.3 μg/m3 (10) 36.0
 
May 23, 2019, midnight N/A N/A N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) 0.3 ppb (3) 12.0 μg/m3 (11) 2.7 μg/m3 (11) 38.0
 
May 22, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.2 ppb (2) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 40.0
 
May 22, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 12.0 μg/m3 (11) 1.6 μg/m3 (7) 39.0
 
May 22, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 13.0 μg/m3 (12) 4.2 μg/m3 (18) 39.0
 
May 22, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 16.0 μg/m3 (15) 4.3 μg/m3 (18) 38.0
 
May 22, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.2 ppb (2) 21.0 μg/m3 (19) 4.3 μg/m3 (18) 37.0
 
May 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.2 ppb (2) N/A N/A 37.0
 
May 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) N/A N/A 35.0
 
May 22, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.2 ppb (2) 28.0 μg/m3 (25) 5.3 μg/m3 (22) 33.0
 
May 22, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A 34.0 μg/m3 (31) 5.4 μg/m3 (23) 31.0
 
May 22, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.2 ppb (2) 39.0 μg/m3 (35) 6.7 μg/m3 (28) 35.0
 
May 22, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) 0.3 ppb (3) 47.0 μg/m3 (43) 8.9 μg/m3 (37) 43.0
 
May 22, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) 0.3 ppb (3) 53.0 μg/m3 (48) 10.9 μg/m3 (45) 48.0
 
May 22, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.3 ppb (3) 46.0 μg/m3 (42) 9.9 μg/m3 (41) 42.0
 
May 22, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.2 ppb (2) 42.0 μg/m3 (38) 4.6 μg/m3 (19) 38.0
 
May 22, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.2 ppb (2) 57.0 μg/m3 (51) 12.3 μg/m3 (51) 51.0
 
May 22, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 64.0 μg/m3 (54) 12.4 μg/m3 (51) 54.0
 
May 22, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 65.0 μg/m3 (55) 12.3 μg/m3 (51) 55.0
 
May 22, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) 0.3 ppb (3) 62.0 μg/m3 (54) 11.0 μg/m3 (46) 54.0
 
May 22, 2019, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) 0.3 ppb (3) 53.0 μg/m3 (48) 10.6 μg/m3 (44) 48.0
 
May 22, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 47.0 ppb (36) 0.3 ppb (3) 47.0 μg/m3 (43) 9.6 μg/m3 (40) 43.0
 
May 22, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 55.0 ppb (42) 0.3 ppb (3) 48.0 μg/m3 (44) 8.6 μg/m3 (36) 44.0
 
May 22, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) 0.2 ppb (2) 60.0 μg/m3 (52) 6.6 μg/m3 (28) 52.0
 
May 22, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) 0.2 ppb (2) 60.0 μg/m3 (52) 4.3 μg/m3 (18) 52.0
 
May 22, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) 0.2 ppb (2) 39.0 μg/m3 (35) 3.9 μg/m3 (16) 42.0
 
May 21, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) 0.2 ppb (2) 53.0 μg/m3 (48) 2.8 μg/m3 (12) 48.0
 
May 21, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.2 ppb (2) 47.0 μg/m3 (43) 4.3 μg/m3 (18) 43.0
 
May 21, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 30.0 μg/m3 (27) 1.7 μg/m3 (7) 39.0
 
May 21, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 17.0 μg/m3 (15) 0.9 μg/m3 (4) 39.0
 
May 21, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 19.0 μg/m3 (17) 2.3 μg/m3 (10) 38.0
 
May 21, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 17.0 μg/m3 (15) 3.2 μg/m3 (13) 38.0
 
May 21, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) 0.2 ppb (2) 21.0 μg/m3 (19) 3.7 μg/m3 (15) 37.0
 
May 21, 2019, 4 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 40.0 ppb (31) 0.3 ppb (3) 18.0 μg/m3 (16) 2.3 μg/m3 (10) 31.0
 
May 21, 2019, 3 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) 0.3 ppb (3) 16.0 μg/m3 (15) 1.2 μg/m3 (5) 25.0
 
May 21, 2019, 2 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) 0.3 ppb (3) 16.0 μg/m3 (15) 2.3 μg/m3 (10) 25.0
 
May 21, 2019, 1 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) 0.3 ppb (3) 12.0 μg/m3 (11) 1.1 μg/m3 (5) 23.0
 
May 21, 2019, noon N/A N/A N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) 0.3 ppb (3) 10.0 μg/m3 (9) 1.1 μg/m3 (5) 20.0
 
May 21, 2019, 11 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 28.0 ppb (22) 0.3 ppb (3) 13.0 μg/m3 (12) 2.8 μg/m3 (12) 22.0
 
May 21, 2019, 10 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 27.0 ppb (21) 0.3 ppb (3) 14.0 μg/m3 (13) 2.9 μg/m3 (12) 21.0
 
May 21, 2019, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.3 ppb (3) 18.0 μg/m3 (16) 4.6 μg/m3 (19) 20.0
 
May 21, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 0.2 ppb (2) 24.0 μg/m3 (22) 7.0 μg/m3 (29) 30.0
 
May 21, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) 0.2 ppb (2) 23.0 μg/m3 (21) 6.0 μg/m3 (25) 32.0
 
May 21, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.2 ppb (2) 20.0 μg/m3 (18) 4.6 μg/m3 (19) 34.0
 
May 21, 2019, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) 0.3 ppb (3) 15.0 μg/m3 (14) 2.5 μg/m3 (10) 31.0
 
May 21, 2019, 4 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 27.0 ppb (21) 0.4 ppb (4) 11.0 μg/m3 (10) 1.8 μg/m3 (8) 21.0
 
May 21, 2019, 3 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.3 ppb (3) 10.0 μg/m3 (9) 1.5 μg/m3 (6) 32.0
 
May 21, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) 0.2 ppb (2) 10.0 μg/m3 (9) 1.2 μg/m3 (5) 38.0
 
May 21, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 12.0 μg/m3 (11) 0.6 μg/m3 (2) 39.0
 
May 21, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 20.0 μg/m3 (18) 1.3 μg/m3 (5) 39.0
 
May 20, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 28.0 μg/m3 (25) 2.8 μg/m3 (12) 39.0
 
May 20, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 33.0 μg/m3 (30) 3.0 μg/m3 (12) 39.0
 
May 20, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 29.0 μg/m3 (26) 2.3 μg/m3 (10) 38.0
 
May 20, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.2 ppb (2) 31.0 μg/m3 (28) 1.5 μg/m3 (6) 38.0
 
May 20, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.2 ppb (2) 17.0 μg/m3 (15) 2.1 μg/m3 (9) 37.0
 
May 20, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 12.0 μg/m3 (11) 1.8 μg/m3 (8) 36.0
 
May 20, 2019, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.2 ppb (2) 15.0 μg/m3 (14) 2.4 μg/m3 (10) 35.0
 
May 20, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.2 ppb (2) 20.0 μg/m3 (18) 3.0 μg/m3 (12) 34.0
 
May 20, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.2 ppb (2) 25.0 μg/m3 (23) 7.0 μg/m3 (29) 32.0
 
May 20, 2019, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.3 ppb (3) 25.0 μg/m3 (23) 5.4 μg/m3 (23) 31.0
 
May 20, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.2 ppb (2) 26.0 μg/m3 (24) 5.7 μg/m3 (24) 30.0
 
May 20, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.3 ppb (3) 21.0 μg/m3 (19) 4.9 μg/m3 (20) 30.0
 
May 20, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 17.0 μg/m3 (15) 3.4 μg/m3 (14) 32.0
 
May 20, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.2 ppb (2) 21.0 μg/m3 (19) 5.8 μg/m3 (24) 35.0
 
May 20, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 21.0 μg/m3 (19) 3.6 μg/m3 (15) 35.0
 
May 20, 2019, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 20.0 μg/m3 (18) 2.9 μg/m3 (12) 36.0
 
May 20, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.2 ppb (2) 12.0 μg/m3 (11) 2.1 μg/m3 (9) 29.0
 
May 20, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.2 ppb (2) 17.0 μg/m3 (15) 3.8 μg/m3 (16) 29.0
 
May 20, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.2 ppb (2) 15.0 μg/m3 (14) 2.7 μg/m3 (11) 28.0
 
May 20, 2019, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.3 ppb (3) 12.0 μg/m3 (11) 2.4 μg/m3 (10) 25.0
 
May 20, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) 0.3 ppb (3) 13.0 μg/m3 (12) 1.8 μg/m3 (8) 22.0
 
May 20, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.3 ppb (3) 18.0 μg/m3 (16) 0.2 μg/m3 (1) 25.0
 
May 20, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.2 ppb (2) 28.0 μg/m3 (25) 1.6 μg/m3 (7) 28.0
 
May 20, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.2 ppb (2) 24.0 μg/m3 (22) 2.3 μg/m3 (10) 31.0
 
May 19, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 14.0 μg/m3 (13) 4.4 μg/m3 (18) 32.0
 
May 19, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.2 ppb (2) 16.0 μg/m3 (15) 3.7 μg/m3 (15) 37.0
 
May 19, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.2 ppb (2) 16.0 μg/m3 (15) 3.0 μg/m3 (12) 40.0
 
May 19, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.2 ppb (2) 15.0 μg/m3 (14) 3.5 μg/m3 (15) 41.0
 
May 19, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) 0.2 ppb (2) 15.0 μg/m3 (14) 3.7 μg/m3 (15) 41.0
 
May 19, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 14.0 μg/m3 (13) 4.2 μg/m3 (18) 38.0
 
May 19, 2019, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 13.0 μg/m3 (12) 4.2 μg/m3 (18) 35.0
 
May 19, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) 0.2 ppb (2) 16.0 μg/m3 (15) 4.7 μg/m3 (20) 35.0
 
May 19, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.3 ppb (3) 18.0 μg/m3 (16) 4.3 μg/m3 (18) 28.0
 
May 19, 2019, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) 0.3 ppb (3) 18.0 μg/m3 (16) 4.1 μg/m3 (17) 23.0
 
May 19, 2019, 1 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) 0.3 ppb (3) 20.0 μg/m3 (18) 5.7 μg/m3 (24) 24.0
 
May 19, 2019, noon N/A N/A N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) 0.3 ppb (3) 10.0 μg/m3 (9) 2.5 μg/m3 (10) 22.0
 
May 19, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.2 ppb (2) 9.0 μg/m3 (8) 4.3 μg/m3 (18) 34.0
 
May 19, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.2 ppb (2) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 34.0
 
May 19, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 11.0 μg/m3 (10) 3.3 μg/m3 (14) 35.0
 
May 19, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.2 ppb (2) 15.0 μg/m3 (14) 3.9 μg/m3 (16) 35.0
 
May 19, 2019, 7 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) 0.3 ppb (3) 22.0 μg/m3 (20) 5.9 μg/m3 (25) 28.0
 
May 19, 2019, 6 a.m. N/A N/A N/A 30.0 ppb (28) N/A N/A 14.0 ppb (11) 0.6 ppb (7) 33.0 μg/m3 (30) 9.3 μg/m3 (39) 39.0
 
May 19, 2019, 5 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A 5.0 ppb (4) 0.7 ppb (8) 25.0 μg/m3 (23) 7.5 μg/m3 (31) 32.0
 
May 19, 2019, 4 a.m. N/A N/A N/A 26.0 ppb (24) N/A N/A 16.0 ppb (12) 0.5 ppb (6) 20.0 μg/m3 (18) 5.8 μg/m3 (24) 24.0
 
May 19, 2019, 3 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 31.0 ppb (24) 0.3 ppb (3) 15.0 μg/m3 (14) 3.9 μg/m3 (16) 24.0
 
May 19, 2019, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 10.0 μg/m3 (9) 1.6 μg/m3 (7) 36.0
 
May 19, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.1 ppb (1) 6.0 μg/m3 (5) 0.1 μg/m3 (0) 40.0
 
May 19, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.1 ppb (1) 6.0 μg/m3 (5) 0.6 μg/m3 (2) 42.0
 
May 18, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) 0.1 ppb (1) 8.0 μg/m3 (7) 2.5 μg/m3 (10) 42.0
 
May 18, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) 0.1 ppb (1) 7.0 μg/m3 (6) 1.9 μg/m3 (8) 43.0
 
May 18, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) 0.1 ppb (1) 6.0 μg/m3 (5) 2.2 μg/m3 (9) 43.0
 
May 18, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) 0.1 ppb (1) 7.0 μg/m3 (6) 2.7 μg/m3 (11) 42.0
 
May 18, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) 0.1 ppb (1) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 41.0
 
May 18, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 11.0 μg/m3 (10) 1.7 μg/m3 (7) 39.0
 
May 18, 2019, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 25.0 μg/m3 (23) 5.9 μg/m3 (25) 38.0
 
May 18, 2019, 4 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 41.0 ppb (32) 0.3 ppb (3) 37.0 μg/m3 (34) 7.2 μg/m3 (30) 34.0
 
May 18, 2019, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 27.0 ppb (21) 0.4 ppb (4) 33.0 μg/m3 (30) 5.9 μg/m3 (25) 30.0
 
May 18, 2019, 2 p.m. N/A N/A N/A 23.0 ppb (21) N/A N/A 16.0 ppb (12) 0.5 ppb (6) 36.0 μg/m3 (33) 6.1 μg/m3 (25) 33.0
 
May 18, 2019, 1 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) 0.6 ppb (7) 31.0 μg/m3 (28) 5.0 μg/m3 (21) 28.0
 
May 18, 2019, noon N/A N/A N/A 24.0 ppb (22) N/A N/A 4.0 ppb (3) 0.5 ppb (6) 25.0 μg/m3 (23) 3.5 μg/m3 (15) 23.0
 
May 18, 2019, 11 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 14.0 ppb (11) 0.4 ppb (4) 22.0 μg/m3 (20) 3.3 μg/m3 (14) 20.0
 
May 18, 2019, 10 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 19.0 ppb (15) 0.3 ppb (3) 22.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
May 18, 2019, 9 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 22.0 ppb (17) 0.4 ppb (4) 18.0 μg/m3 (16) 3.7 μg/m3 (15) 17.0
 
May 18, 2019, 8 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 26.0 ppb (20) 0.3 ppb (3) 15.0 μg/m3 (14) 5.7 μg/m3 (24) 24.0
 
May 18, 2019, 7 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.3 ppb (3) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 28.0
 
May 18, 2019, 6 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) 0.3 ppb (3) 15.0 μg/m3 (14) 3.9 μg/m3 (16) 24.0
 
May 18, 2019, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) 0.4 ppb (4) 14.0 μg/m3 (13) 3.7 μg/m3 (15) 25.0
 
May 18, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.3 ppb (3) 16.0 μg/m3 (15) 3.0 μg/m3 (12) 32.0
 
May 18, 2019, 3 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) 0.3 ppb (3) 16.0 μg/m3 (15) 2.3 μg/m3 (10) 28.0
 
May 18, 2019, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.2 ppb (2) 12.0 μg/m3 (11) 1.6 μg/m3 (7) 34.0
 
May 18, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 11.0 μg/m3 (10) 2.4 μg/m3 (10) 36.0
 
May 18, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 10.0 μg/m3 (9) 0.3 μg/m3 (1) 36.0
 
May 17, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 21.0 μg/m3 (19) 4.5 μg/m3 (19) 36.0
 
May 17, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 18.0 μg/m3 (16) 3.7 μg/m3 (15) 36.0
 
May 17, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 16.0 μg/m3 (15) 3.1 μg/m3 (13) 38.0
 
May 17, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 16.0 μg/m3 (15) 3.5 μg/m3 (15) 39.0
 
May 17, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.2 ppb (2) 19.0 μg/m3 (17) 3.6 μg/m3 (15) 40.0
 
May 17, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.2 ppb (2) 28.0 μg/m3 (25) 7.2 μg/m3 (30) 40.0
 
May 17, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 27.0 μg/m3 (25) 4.7 μg/m3 (20) 39.0
 
May 17, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) 0.2 ppb (2) 24.0 μg/m3 (22) 4.6 μg/m3 (19) 37.0
 
May 17, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.2 ppb (2) 24.0 μg/m3 (22) 5.3 μg/m3 (22) 34.0
 
May 17, 2019, 2 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 25.0 μg/m3 (23) 2.8 μg/m3 (12) 32.0
 
May 17, 2019, 1 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.2 ppb (2) 29.0 μg/m3 (26) 4.9 μg/m3 (20) 29.0
 
May 17, 2019, noon N/A N/A N/A 8.0 ppb (7) N/A N/A 38.0 ppb (29) 0.3 ppb (3) 31.0 μg/m3 (28) 5.8 μg/m3 (24) 29.0
 
May 17, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) 0.2 ppb (2) 43.0 μg/m3 (39) 6.6 μg/m3 (28) 39.0
 
May 17, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.2 ppb (2) 50.0 μg/m3 (45) 8.1 μg/m3 (34) 45.0
 
May 17, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.2 ppb (2) 52.0 μg/m3 (47) 7.6 μg/m3 (32) 47.0
 
May 17, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.2 ppb (2) 53.0 μg/m3 (48) 7.5 μg/m3 (31) 48.0
 
May 17, 2019, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.2 ppb (2) 62.0 μg/m3 (54) 5.6 μg/m3 (23) 54.0
 
May 17, 2019, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.2 ppb (2) 58.0 μg/m3 (52) 6.3 μg/m3 (26) 52.0
 
May 17, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.2 ppb (2) 55.0 μg/m3 (50) 7.6 μg/m3 (32) 50.0
 
May 17, 2019, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.2 ppb (2) 51.0 μg/m3 (46) 7.1 μg/m3 (30) 46.0
 
May 17, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.2 ppb (2) 37.0 μg/m3 (34) 5.1 μg/m3 (21) 34.0
 
May 17, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.2 ppb (2) 41.0 μg/m3 (37) 4.9 μg/m3 (20) 37.0
 
May 17, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 44.0 μg/m3 (40) 3.4 μg/m3 (14) 40.0