AQSQID: 040134011

Site Name: Buckeye

Location: Maricopa Co, AZ

Reporting: True, Located: True

Current AQI: 32.0

Maricopa Co AZ, US: 33.37, -112.6207

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 22, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) 0.2 ppb (2) 35.0 μg/m3 (32) N/A 32.0
 
July 22, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) 0.2 ppb (2) 34.0 μg/m3 (31) N/A 31.0
 
July 22, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) 0.2 ppb (2) 31.0 μg/m3 (28) N/A 28.0
 
July 22, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.2 ppb (2) 33.0 μg/m3 (30) N/A 30.0
 
July 22, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) 0.2 ppb (2) 35.0 μg/m3 (32) N/A 32.0
 
July 22, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) 0.2 ppb (2) 28.0 μg/m3 (25) N/A 25.0
 
July 22, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 58.0 μg/m3 (52) N/A 52.0
 
July 22, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 51.0 μg/m3 (46) N/A 46.0
 
July 22, 2019, 2 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 13.0 ppb (10) 0.2 ppb (2) 115.0 μg/m3 (80) N/A 80.0
 
July 22, 2019, 1 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.2 ppb (2) 120.0 μg/m3 (82) N/A 82.0
 
July 22, 2019, noon N/A N/A N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.2 ppb (2) 54.0 μg/m3 (49) N/A 49.0
 
July 22, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.2 ppb (2) 33.0 μg/m3 (30) N/A 30.0
 
July 22, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.2 ppb (2) 26.0 μg/m3 (24) N/A 24.0
 
July 22, 2019, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.2 ppb (2) 22.0 μg/m3 (20) N/A 20.0
 
July 22, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.2 ppb (2) 34.0 μg/m3 (31) N/A 31.0
 
July 22, 2019, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.2 ppb (2) 39.0 μg/m3 (35) N/A 35.0
 
July 22, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.2 ppb (2) 33.0 μg/m3 (30) N/A 30.0
 
July 22, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) 0.2 ppb (2) 93.0 μg/m3 (69) N/A 69.0
 
July 22, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.2 ppb (2) 75.0 μg/m3 (60) N/A 60.0
 
July 22, 2019, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.2 ppb (2) 341.0 μg/m3 (193) N/A 193.0
 
July 22, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.2 ppb (2) 61.0 μg/m3 (53) N/A 53.0
 
July 22, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.2 ppb (2) 48.0 μg/m3 (44) N/A 44.0
 
July 22, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.2 ppb (2) 56.0 μg/m3 (50) N/A 50.0
 
July 21, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 58.0 μg/m3 (52) N/A 52.0
 
July 21, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 49.0 μg/m3 (45) N/A 45.0
 
July 21, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 52.0 μg/m3 (47) N/A 47.0
 
July 21, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.2 ppb (2) 72.0 μg/m3 (58) N/A 58.0
 
July 21, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.2 ppb (2) 88.0 μg/m3 (66) N/A 66.0
 
July 21, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.2 ppb (2) 85.0 μg/m3 (65) N/A 65.0
 
July 21, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 107.0 μg/m3 (76) N/A 76.0
 
July 21, 2019, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) 0.2 ppb (2) 88.0 μg/m3 (66) N/A 66.0
 
July 21, 2019, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 109.0 μg/m3 (77) N/A 77.0
 
July 21, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.2 ppb (2) 56.0 μg/m3 (50) N/A 50.0
 
July 21, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.2 ppb (2) 37.0 μg/m3 (34) N/A 34.0
 
July 21, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.2 ppb (2) 43.0 μg/m3 (39) N/A 39.0
 
July 21, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) 0.2 ppb (2) 33.0 μg/m3 (30) N/A 30.0
 
July 21, 2019, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.2 ppb (2) 30.0 μg/m3 (27) N/A 27.0
 
July 21, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.2 ppb (2) 29.0 μg/m3 (26) N/A 26.0
 
July 21, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 32.0 μg/m3 (29) N/A 29.0
 
July 21, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.2 ppb (2) 32.0 μg/m3 (29) N/A 29.0
 
July 21, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.2 ppb (2) 30.0 μg/m3 (27) N/A 27.0
 
July 21, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.2 ppb (2) 30.0 μg/m3 (27) N/A 27.0
 
July 21, 2019, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 48.0 μg/m3 (44) N/A 44.0
 
July 21, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 54.0 μg/m3 (49) N/A 49.0
 
July 21, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.2 ppb (2) 38.0 μg/m3 (35) N/A 35.0
 
July 21, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 31.0 μg/m3 (28) N/A 28.0
 
July 21, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.2 ppb (2) 25.0 μg/m3 (23) N/A 28.0
 
July 20, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.1 ppb (1) 16.0 μg/m3 (15) N/A 31.0
 
July 20, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.1 ppb (1) 15.0 μg/m3 (14) N/A 32.0
 
July 20, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.1 ppb (1) 16.0 μg/m3 (15) N/A 30.0
 
July 20, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.1 ppb (1) 14.0 μg/m3 (13) N/A 29.0
 
July 20, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.1 ppb (1) 13.0 μg/m3 (12) N/A 30.0
 
July 20, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.1 ppb (1) 15.0 μg/m3 (14) N/A 28.0
 
July 20, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) 0.1 ppb (1) 12.0 μg/m3 (11) N/A 26.0
 
July 20, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A 27.0 μg/m3 (25) N/A 25.0
 
July 20, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.2 ppb (2) 22.0 μg/m3 (20) N/A 21.0
 
July 20, 2019, 2 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 13.0 ppb (10) 0.2 ppb (2) 71.0 μg/m3 (58) N/A 58.0
 
July 20, 2019, 1 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 6.0 ppb (5) 0.2 ppb (2) 84.0 μg/m3 (64) N/A 64.0
 
July 20, 2019, noon N/A N/A N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 34.0 μg/m3 (31) N/A 31.0
 
July 20, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) 0.2 ppb (2) 40.0 μg/m3 (36) N/A 36.0
 
July 20, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) 39.0 μg/m3 (35) N/A 35.0
 
July 20, 2019, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.2 ppb (2) 50.0 μg/m3 (45) N/A 45.0
 
July 20, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.2 ppb (2) 47.0 μg/m3 (43) N/A 43.0
 
July 20, 2019, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.1 ppb (1) 50.0 μg/m3 (45) N/A 45.0
 
July 20, 2019, 6 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 60.0 μg/m3 (52) N/A 52.0
 
July 20, 2019, 5 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 38.0 μg/m3 (35) N/A 35.0
 
July 20, 2019, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.1 ppb (1) 31.0 μg/m3 (28) N/A 28.0
 
July 20, 2019, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.1 ppb (1) 62.0 μg/m3 (54) N/A 54.0
 
July 20, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 37.0 μg/m3 (34) N/A 34.0
 
July 20, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.2 ppb (2) 37.0 μg/m3 (34) N/A 34.0
 
July 20, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.1 ppb (1) 38.0 μg/m3 (35) N/A 35.0
 
July 19, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.1 ppb (1) 19.0 μg/m3 (17) N/A 31.0
 
July 19, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.1 ppb (1) 18.0 μg/m3 (16) N/A 30.0
 
July 19, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.1 ppb (1) 18.0 μg/m3 (16) N/A 31.0
 
July 19, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.1 ppb (1) 8.0 μg/m3 (7) N/A 29.0
 
July 19, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.1 ppb (1) 17.0 μg/m3 (15) N/A 26.0
 
July 19, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.1 ppb (1) 34.0 μg/m3 (31) N/A 31.0
 
July 19, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.1 ppb (1) 16.0 μg/m3 (15) N/A 29.0
 
July 19, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.1 ppb (1) 29.0 μg/m3 (26) N/A 27.0
 
July 19, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 37.0 μg/m3 (34) N/A 34.0
 
July 19, 2019, 2 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.2 ppb (2) 58.0 μg/m3 (52) N/A 52.0
 
July 19, 2019, 1 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) 0.2 ppb (2) 74.0 μg/m3 (60) N/A 60.0
 
July 19, 2019, noon N/A N/A N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) 0.2 ppb (2) 57.0 μg/m3 (51) N/A 51.0
 
July 19, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) 0.2 ppb (2) 52.0 μg/m3 (47) N/A 47.0
 
July 19, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.2 ppb (2) 28.0 μg/m3 (25) N/A 25.0
 
July 19, 2019, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 28.0 μg/m3 (25) N/A 25.0
 
July 19, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 13.0 ppb (10) 0.2 ppb (2) 48.0 μg/m3 (44) N/A 44.0
 
July 19, 2019, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.2 ppb (2) 38.0 μg/m3 (35) N/A 35.0
 
July 19, 2019, 6 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 14.0 ppb (11) 0.2 ppb (2) 33.0 μg/m3 (30) N/A 30.0
 
July 19, 2019, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) 0.2 ppb (2) 56.0 μg/m3 (50) N/A 50.0
 
July 19, 2019, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 43.0 μg/m3 (39) N/A 39.0
 
July 19, 2019, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 53.0 μg/m3 (48) N/A 48.0
 
July 19, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.2 ppb (2) 52.0 μg/m3 (47) N/A 47.0
 
July 19, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.2 ppb (2) 57.0 μg/m3 (51) N/A 51.0
 
July 19, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.1 ppb (1) 35.0 μg/m3 (32) N/A 32.0
 
July 18, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.1 ppb (1) 28.0 μg/m3 (25) N/A 29.0
 
July 18, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.1 ppb (1) 25.0 μg/m3 (23) N/A 30.0
 
July 18, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.1 ppb (1) 22.0 μg/m3 (20) N/A 30.0
 
July 18, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.1 ppb (1) 19.0 μg/m3 (17) N/A 28.0
 
July 18, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.1 ppb (1) 20.0 μg/m3 (18) N/A 29.0
 
July 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 25.0 μg/m3 (23) N/A 29.0
 
July 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 19.0 μg/m3 (17) N/A 28.0
 
July 18, 2019, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) N/A 25.0
 
July 18, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) 45.0 μg/m3 (41) N/A 41.0
 
July 18, 2019, 2 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 8.0 ppb (6) 0.3 ppb (3) 137.0 μg/m3 (91) N/A 91.0
 
July 18, 2019, 1 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 7.0 ppb (5) 0.3 ppb (3) 76.0 μg/m3 (60) N/A 60.0
 
July 18, 2019, noon N/A N/A N/A 15.0 ppb (14) N/A N/A 6.0 ppb (5) 0.2 ppb (2) 53.0 μg/m3 (48) N/A 48.0
 
July 18, 2019, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 25.0 μg/m3 (23) N/A 23.0
 
July 18, 2019, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 24.0 μg/m3 (22) N/A 22.0
 
July 18, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.2 ppb (2) 25.0 μg/m3 (23) N/A 23.0
 
July 18, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) 0.2 ppb (2) 16.0 μg/m3 (15) N/A 21.0
 
July 18, 2019, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) 0.2 ppb (2) 23.0 μg/m3 (21) N/A 21.0
 
July 18, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.2 ppb (2) 26.0 μg/m3 (24) N/A 24.0
 
July 18, 2019, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 40.0 μg/m3 (36) N/A 36.0
 
July 18, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 39.0 μg/m3 (35) N/A 35.0
 
July 18, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.2 ppb (2) 47.0 μg/m3 (43) N/A 43.0
 
July 18, 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) 37.0 μg/m3 (34) N/A 34.0
 
July 18, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 45.0 μg/m3 (41) N/A 41.0
 
July 18, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.2 ppb (2) 46.0 μg/m3 (42) N/A 42.0
 
July 17, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.2 ppb (2) 40.0 μg/m3 (36) N/A 36.0
 
July 17, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.2 ppb (2) 50.0 μg/m3 (45) N/A 45.0
 
July 17, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.2 ppb (2) 38.0 μg/m3 (35) N/A 35.0
 
July 17, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) 0.2 ppb (2) 64.0 μg/m3 (54) N/A 54.0
 
July 17, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 69.0 μg/m3 (57) N/A 57.0
 
July 17, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) 0.2 ppb (2) 59.0 μg/m3 (52) N/A 52.0
 
July 17, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) 0.2 ppb (2) 61.0 μg/m3 (53) N/A 53.0
 
July 17, 2019, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) 0.2 ppb (2) 36.0 μg/m3 (33) N/A 33.0
 
July 17, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 49.0 μg/m3 (45) N/A 45.0
 
July 17, 2019, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 54.0 μg/m3 (49) N/A 49.0
 
July 17, 2019, 1 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 6.0 ppb (5) 0.3 ppb (3) 74.0 μg/m3 (60) N/A 60.0
 
July 17, 2019, noon N/A N/A N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) 0.3 ppb (3) 59.0 μg/m3 (52) N/A 52.0
 
July 17, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 47.0 μg/m3 (43) N/A 43.0
 
July 17, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) 0.2 ppb (2) 59.0 μg/m3 (52) N/A 52.0
 
July 17, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.2 ppb (2) 32.0 μg/m3 (29) N/A 29.0
 
July 17, 2019, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.2 ppb (2) 48.0 μg/m3 (44) N/A 44.0
 
July 17, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) 0.2 ppb (2) 38.0 μg/m3 (35) N/A 35.0
 
July 17, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.2 ppb (2) 29.0 μg/m3 (26) N/A 26.0
 
July 17, 2019, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 32.0 μg/m3 (29) N/A 29.0
 
July 17, 2019, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 37.0 μg/m3 (34) N/A 34.0
 
July 17, 2019, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) 0.2 ppb (2) 63.0 μg/m3 (54) N/A 54.0
 
July 17, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.2 ppb (2) 47.0 μg/m3 (43) N/A 43.0
 
July 17, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 44.0 μg/m3 (40) N/A 40.0
 
July 17, 2019, midnight N/A N/A N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.2 ppb (2) 39.0 μg/m3 (35) N/A 35.0
 
July 16, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 43.0 μg/m3 (39) N/A 39.0
 
July 16, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) 0.2 ppb (2) 46.0 μg/m3 (42) N/A 42.0
 
July 16, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.1 ppb (1) 41.0 μg/m3 (37) N/A 42.0
 
July 16, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) 0.2 ppb (2) 36.0 μg/m3 (33) N/A 44.0
 
July 16, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) 0.2 ppb (2) 25.0 μg/m3 (23) N/A 45.0
 
July 16, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) 0.1 ppb (1) N/A N/A 44.0
 
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.1 ppb (1) 57.0 μg/m3 (51) N/A 51.0
 
July 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 56.0 μg/m3 (50) N/A 50.0
 
July 16, 2019, 3 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) N/A 61.0 μg/m3 (53) N/A 53.0
 
July 16, 2019, 2 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.3 ppb (3) 115.0 μg/m3 (80) N/A 80.0
 
July 16, 2019, 1 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A 4.0 ppb (3) 0.3 ppb (3) 84.0 μg/m3 (64) N/A 64.0
 
July 16, 2019, noon N/A N/A N/A 12.0 ppb (11) N/A N/A 8.0 ppb (6) 0.2 ppb (2) 74.0 μg/m3 (60) N/A 60.0
 
July 16, 2019, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 12.0 ppb (9) 0.2 ppb (2) 41.0 μg/m3 (37) N/A 37.0
 
July 16, 2019, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 49.0 μg/m3 (45) N/A 45.0
 
July 16, 2019, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) 0.2 ppb (2) 65.0 μg/m3 (55) N/A 55.0
 
July 16, 2019, 8 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 13.0 ppb (10) 0.2 ppb (2) 65.0 μg/m3 (55) N/A 55.0
 
July 16, 2019, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.2 ppb (2) 54.0 μg/m3 (49) N/A 49.0
 
July 16, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.2 ppb (2) 64.0 μg/m3 (54) N/A 54.0
 
July 16, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.2 ppb (2) 43.0 μg/m3 (39) N/A 39.0
 
July 16, 2019, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 49.0 μg/m3 (45) N/A 45.0
 
July 16, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.2 ppb (2) 47.0 μg/m3 (43) N/A 43.0
 
July 16, 2019, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.2 ppb (2) 34.0 μg/m3 (31) N/A 31.0
 
July 16, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 30.0 μg/m3 (27) N/A 32.0
 
July 16, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.2 ppb (2) 27.0 μg/m3 (25) N/A 34.0
 
July 15, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 33.0 μg/m3 (30) N/A 35.0