AQSQID: 381010003

Site Name: Ryder

Location: Maryfield, ND

Reporting: True, Located: True

Current AQI: 23.0

Maryfield ND, US: 49.940861, -101.571583

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 12, 2019, 1 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 9.0 μg/m3 (8) 9.4 μg/m3 (39) 39.0
 
June 12, 2019, noon 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 10.0 μg/m3 (9) 6.5 μg/m3 (27) 27.0
 
June 12, 2019, 11 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 8.0 μg/m3 (7) 6.3 μg/m3 (26) 26.0
 
June 12, 2019, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
June 12, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
June 12, 2019, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 9.0 μg/m3 (8) 7.9 μg/m3 (33) 33.0
 
June 12, 2019, 7 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 9.0 μg/m3 (8) 11.8 μg/m3 (49) 49.0
 
June 12, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 10.0 μg/m3 (9) 3.5 μg/m3 (15) 18.0
 
June 12, 2019, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 2.2 μg/m3 (9) 20.0
 
June 12, 2019, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 11.0 μg/m3 (10) 6.1 μg/m3 (25) 28.0
 
June 12, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 14.0 μg/m3 (13) 9.6 μg/m3 (40) 40.0
 
June 12, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 30.0
 
June 12, 2019, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 31.0
 
June 12, 2019, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 34.0
 
June 11, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 7.0 μg/m3 (6) 5.9 μg/m3 (25) 35.0
 
June 11, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 8.0 μg/m3 (7) 7.2 μg/m3 (30) 35.0
 
June 11, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 6.0 μg/m3 (5) 5.9 μg/m3 (25) 33.0
 
June 11, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 5.0 μg/m3 (5) 7.4 μg/m3 (31) 32.0
 
June 11, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 17.0 μg/m3 (15) 10.1 μg/m3 (42) 42.0
 
June 11, 2019, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 22.0 μg/m3 (20) 9.2 μg/m3 (38) 38.0
 
June 11, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 11.0 μg/m3 (10) N/A 35.0
 
June 11, 2019, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 6.0 μg/m3 (5) N/A 31.0
 
June 11, 2019, 3 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 7.0 μg/m3 (6) N/A 27.0
 
June 11, 2019, 2 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 4.7 μg/m3 (20) 20.0
 
June 11, 2019, 1 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 10.0 μg/m3 (9) 5.8 μg/m3 (24) 24.0
 
June 11, 2019, noon 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 6.0 μg/m3 (5) 1.1 μg/m3 (5) 15.0
 
June 11, 2019, 11 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 13.0
 
June 11, 2019, 10 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 5.0 μg/m3 (5) 1.2 μg/m3 (5) 12.0
 
June 11, 2019, 9 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 12.0
 
June 11, 2019, 8 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 7.0 μg/m3 (6) 2.4 μg/m3 (10) 12.0
 
June 11, 2019, 7 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 18.0
 
June 11, 2019, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 1.6 μg/m3 (7) 21.0
 
June 11, 2019, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 23.0
 
June 11, 2019, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 23.0
 
June 11, 2019, 3 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 12.0 μg/m3 (11) -1.2 μg/m3 (0) 23.0
 
June 11, 2019, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 26.0
 
June 11, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 14.0 μg/m3 (13) 5.3 μg/m3 (22) 30.0
 
June 11, 2019, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 8.0 μg/m3 (7) 2.7 μg/m3 (11) 35.0
 
June 10, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 6.0 μg/m3 (5) 2.6 μg/m3 (11) 35.0
 
June 10, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 6.0 μg/m3 (5) 2.1 μg/m3 (9) 35.0
 
June 10, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 35.0
 
June 10, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 35.0
 
June 10, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 4.0 μg/m3 (4) 8.9 μg/m3 (37) 37.0
 
June 10, 2019, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 2.0 μg/m3 (2) 12.0 μg/m3 (50) 50.0
 
June 10, 2019, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 5.0 μg/m3 (5) 17.7 μg/m3 (62) 62.0
 
June 10, 2019, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 4.0 μg/m3 (4) 6.3 μg/m3 (26) 27.0
 
June 10, 2019, 3 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 5.3 μg/m3 (22) 25.0
 
June 10, 2019, 2 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 6.1 μg/m3 (25) 25.0
 
June 10, 2019, 1 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 5.0 μg/m3 (5) 4.7 μg/m3 (20) 20.0
 
June 10, 2019, noon 8.0 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 7.0 μg/m3 (6) 2.1 μg/m3 (9) 13.0
 
June 10, 2019, 11 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 12.0
 
June 10, 2019, 10 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (8) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
June 10, 2019, 9 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (8) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (12) 12.0
 
June 10, 2019, 8 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 18.0
 
June 10, 2019, 7 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 4.0 μg/m3 (4) 5.6 μg/m3 (23) 23.0
 
June 10, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 4.0 μg/m3 (4) 3.9 μg/m3 (16) 16.0
 
June 10, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 5.4 μg/m3 (23) 23.0
 
June 10, 2019, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 2.0 μg/m3 (2) 3.9 μg/m3 (16) 19.0
 
June 10, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 17.0
 
June 10, 2019, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 4.1 μg/m3 (17) 21.0
 
June 10, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 4.3 μg/m3 (18) 23.0
 
June 10, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 25.0
 
June 9, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 2.5 μg/m3 (10) 26.0
 
June 9, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 11.0 μg/m3 (10) 4.3 μg/m3 (18) 28.0
 
June 9, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 7.0 μg/m3 (6) 6.9 μg/m3 (29) 29.0
 
June 9, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 20.0 μg/m3 (18) 16.0 μg/m3 (59) 59.0
 
June 9, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 10.0 μg/m3 (9) 11.7 μg/m3 (49) 49.0
 
June 9, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 9.0 μg/m3 (8) 7.8 μg/m3 (32) 32.0
 
June 9, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 5.7 μg/m3 (24) 29.0
 
June 9, 2019, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 26.0
 
June 9, 2019, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 22.0
 
June 9, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 23.0 ppb (18) N/A 5.0 μg/m3 (5) 7.2 μg/m3 (30) 30.0
 
June 9, 2019, 1 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 8.0 μg/m3 (7) 9.2 μg/m3 (38) 38.0
 
June 9, 2019, noon 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 8.0 μg/m3 (7) 8.7 μg/m3 (36) 36.0
 
June 9, 2019, 11 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (9) N/A 8.0 μg/m3 (7) 8.4 μg/m3 (35) 35.0
 
June 9, 2019, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
June 9, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
June 9, 2019, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 3.0 μg/m3 (3) 4.6 μg/m3 (19) 19.0
 
June 9, 2019, 7 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
June 9, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 7.0 μg/m3 (6) 5.9 μg/m3 (25) 25.0
 
June 9, 2019, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 5.0 μg/m3 (5) 6.5 μg/m3 (27) 27.0
 
June 9, 2019, 4 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 8.0 μg/m3 (7) 6.4 μg/m3 (27) 27.0
 
June 9, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 16.0
 
June 9, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 17.0
 
June 9, 2019, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 18.0
 
June 9, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 16.0
 
June 8, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 6.0 μg/m3 (5) 4.7 μg/m3 (20) 20.0
 
June 8, 2019, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 8.7 μg/m3 (36) 36.0
 
June 8, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 3.0 μg/m3 (3) 10.7 μg/m3 (45) 45.0
 
June 8, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 3.0 μg/m3 (3) 3.6 μg/m3 (15) 17.0
 
June 8, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 21.0
 
June 8, 2019, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 4.0 μg/m3 (4) 0.7 μg/m3 (3) 14.0
 
June 8, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 18.0
 
June 8, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 1.6 μg/m3 (7) 18.0
 
June 8, 2019, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 1.1 μg/m3 (5) 16.0
 
June 8, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 6.0 μg/m3 (5) 2.6 μg/m3 (11) 17.0
 
June 8, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 0.0 μg/m3 (0) 0.2 μg/m3 (1) 15.0
 
June 8, 2019, noon 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) -0.9 μg/m3 (0) 21.0
 
June 8, 2019, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 2.0 μg/m3 (2) 4.1 μg/m3 (17) 25.0
 
June 8, 2019, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 7.1 μg/m3 (30) 30.0
 
June 8, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 23.0
 
June 8, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 2.0 μg/m3 (2) 4.4 μg/m3 (18) 26.0
 
June 8, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 11.0 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
June 8, 2019, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 28.0
 
June 8, 2019, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 13.0 μg/m3 (12) 5.3 μg/m3 (22) 24.0
 
June 8, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 10.2 μg/m3 (42) 42.0
 
June 8, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 10.0 μg/m3 (9) 11.6 μg/m3 (48) 48.0
 
June 8, 2019, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
June 8, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) N/A 12.0 μg/m3 (11) 10.6 μg/m3 (44) 44.0
 
June 8, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (45) N/A 13.0 μg/m3 (12) 9.1 μg/m3 (38) 45.0
 
June 7, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (45) N/A 10.0 μg/m3 (9) 7.4 μg/m3 (31) 45.0
 
June 7, 2019, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (45) N/A 12.0 μg/m3 (11) 8.2 μg/m3 (34) 45.0
 
June 7, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 60.0 ppb (46) N/A 14.0 μg/m3 (13) 10.1 μg/m3 (42) 46.0
 
June 7, 2019, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (43) N/A 28.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
June 7, 2019, 7 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 55.0 ppb (42) N/A 25.0 μg/m3 (23) 13.8 μg/m3 (54) 54.0
 
June 7, 2019, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (41) N/A 25.0 μg/m3 (23) 8.6 μg/m3 (36) 41.0
 
June 7, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) N/A 16.0 μg/m3 (15) 8.8 μg/m3 (37) 38.0
 
June 7, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (40) N/A 17.0 μg/m3 (15) 14.2 μg/m3 (55) 55.0
 
June 7, 2019, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 16.0 μg/m3 (15) 10.1 μg/m3 (42) 42.0
 
June 7, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
June 7, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 7.5 μg/m3 (31) 32.0
 
June 7, 2019, noon 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 27.0
 
June 7, 2019, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 5.8 μg/m3 (24) 24.0
 
June 7, 2019, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 6.5 μg/m3 (27) 27.0
 
June 7, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 7.0 μg/m3 (6) 6.2 μg/m3 (26) 26.0
 
June 7, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
June 7, 2019, 7 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 14.0 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
June 7, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 17.0 μg/m3 (15) 5.7 μg/m3 (24) 26.0
 
June 7, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 16.0 μg/m3 (15) 2.4 μg/m3 (10) 32.0
 
June 7, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 14.0 μg/m3 (13) 4.3 μg/m3 (18) 36.0
 
June 7, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 36.0
 
June 7, 2019, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 16.0 μg/m3 (15) 5.6 μg/m3 (23) 34.0
 
June 7, 2019, 1 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (42) N/A 22.0 μg/m3 (20) 4.5 μg/m3 (19) 42.0
 
June 7, 2019, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 61.0 ppb (47) N/A 12.0 μg/m3 (11) 5.8 μg/m3 (24) 47.0
 
June 6, 2019, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 64.0 ppb (49) N/A 11.0 μg/m3 (10) 7.2 μg/m3 (30) 49.0
 
June 6, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 66.0 ppb (51) N/A 12.0 μg/m3 (11) 6.5 μg/m3 (27) 51.0
 
June 6, 2019, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 67.0 ppb (52) N/A 12.0 μg/m3 (11) 4.5 μg/m3 (19) 52.0
 
June 6, 2019, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 65.0 ppb (50) N/A 10.0 μg/m3 (9) 7.5 μg/m3 (31) 50.0
 
June 6, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 64.0 ppb (49) N/A 8.0 μg/m3 (7) 12.4 μg/m3 (51) 51.0
 
June 6, 2019, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 62.0 ppb (48) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 48.0
 
June 6, 2019, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 61.0 ppb (47) N/A 8.0 μg/m3 (7) 1.9 μg/m3 (8) 47.0
 
June 6, 2019, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 58.0 ppb (45) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 45.0
 
June 6, 2019, 3 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (42) N/A 7.0 μg/m3 (6) 6.2 μg/m3 (26) 42.0
 
June 6, 2019, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) N/A 3.0 μg/m3 (3) 9.8 μg/m3 (41) 41.0
 
June 6, 2019, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 10.0 μg/m3 (9) 13.8 μg/m3 (54) 54.0
 
June 6, 2019, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) N/A 14.0 μg/m3 (13) 10.9 μg/m3 (45) 45.0
 
June 6, 2019, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 25.0
 
June 6, 2019, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 15.0 μg/m3 (14) 4.1 μg/m3 (17) 24.0
 
June 6, 2019, 9 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 15.0 μg/m3 (14) 5.5 μg/m3 (23) 23.0
 
June 6, 2019, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
June 6, 2019, 7 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 15.0 μg/m3 (14) 5.1 μg/m3 (21) 27.0
 
June 6, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 11.0 μg/m3 (10) 3.1 μg/m3 (13) 28.0
 
June 6, 2019, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 11.0 μg/m3 (10) 4.8 μg/m3 (20) 29.0
 
June 6, 2019, 4 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 39.0 ppb (30) N/A 12.0 μg/m3 (11) 5.1 μg/m3 (21) 30.0
 
June 6, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 13.0 μg/m3 (12) 6.7 μg/m3 (28) 35.0
 
June 6, 2019, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) N/A 17.0 μg/m3 (15) 8.4 μg/m3 (35) 38.0
 
June 6, 2019, 1 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (18) 41.0
 
June 6, 2019, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 58.0 ppb (45) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 45.0
 
June 5, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 58.0 ppb (45) N/A 3.0 μg/m3 (3) 7.0 μg/m3 (29) 45.0
 
June 5, 2019, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (45) N/A 19.0 μg/m3 (17) 9.9 μg/m3 (41) 45.0
 
June 5, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 63.0 ppb (48) N/A 14.0 μg/m3 (13) 8.7 μg/m3 (36) 48.0
 
June 5, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 64.0 ppb (49) N/A 18.0 μg/m3 (16) 6.2 μg/m3 (26) 49.0
 
June 5, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 62.0 ppb (48) N/A 12.0 μg/m3 (11) 5.2 μg/m3 (22) 48.0
 
June 5, 2019, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 60.0 ppb (46) N/A 17.0 μg/m3 (15) 5.1 μg/m3 (21) 46.0
 
June 5, 2019, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 57.0 ppb (44) N/A 10.0 μg/m3 (9) 8.7 μg/m3 (36) 44.0
 
June 5, 2019, 4 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 38.0
 
June 5, 2019, 3 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 10.0 μg/m3 (9) 10.2 μg/m3 (42) 42.0
 
June 5, 2019, 2 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 7.0 μg/m3 (6) 17.3 μg/m3 (61) 61.0