AQSQID: 381010003

Site Name: Ryder

Location: Ryder (184th St Swest), ND

Reporting: True, Located: True

Current AQI: 28.0

Ryder (184th St Swest) ND, US: 47.940861, -101.571583

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 30, 2020, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 6.2 μg/m3 (26) 28.0
 
March 30, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
March 30, 2020, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
March 30, 2020, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.6 μg/m3 (11) 22.0
 
March 30, 2020, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 3.2 μg/m3 (13) 22.0
 
March 30, 2020, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 3.5 μg/m3 (15) 22.0
 
March 30, 2020, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 3.2 μg/m3 (13) 22.0
 
March 30, 2020, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
March 30, 2020, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 4.8 μg/m3 (20) 23.0
 
March 30, 2020, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 20.0 μg/m3 (18) 5.3 μg/m3 (22) 24.0
 
March 30, 2020, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
March 30, 2020, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 5.8 μg/m3 (24) 24.0
 
March 30, 2020, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 5.0 μg/m3 (5) 3.9 μg/m3 (16) 24.0
 
March 30, 2020, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 26.0
 
March 30, 2020, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 7.0 μg/m3 (6) 3.5 μg/m3 (15) 27.0
 
March 30, 2020, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 0.0 μg/m3 (0) 26.0
 
March 30, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 8.0 μg/m3 (7) 1.9 μg/m3 (8) 29.0
 
March 29, 2020, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 8.0 μg/m3 (7) 2.4 μg/m3 (10) 35.0
 
March 29, 2020, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 6.0 μg/m3 (5) 4.8 μg/m3 (20) 36.0
 
March 29, 2020, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 46.0 ppb (35) N/A 20.0 μg/m3 (18) 6.6 μg/m3 (28) 35.0
 
March 29, 2020, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 5.0 ppb (7) 45.0 ppb (35) N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 35.0
 
March 29, 2020, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 5.0 μg/m3 (5) 1.6 μg/m3 (7) 35.0
 
March 29, 2020, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (10) 35.0
 
March 29, 2020, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 28.0
 
March 29, 2020, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
March 29, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 22.0
 
March 29, 2020, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 20.0
 
March 29, 2020, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 18.0
 
March 29, 2020, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 5.4 μg/m3 (23) 23.0
 
March 29, 2020, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 6.1 μg/m3 (25) 25.0
 
March 29, 2020, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
March 29, 2020, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 7.3 μg/m3 (30) 30.0
 
March 29, 2020, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 5.6 μg/m3 (23) 28.0
 
March 29, 2020, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 6.9 μg/m3 (29) 29.0
 
March 29, 2020, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 7.0 μg/m3 (6) 4.2 μg/m3 (18) 25.0
 
March 29, 2020, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 3.4 μg/m3 (14) 28.0
 
March 29, 2020, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 7.0 μg/m3 (6) 4.3 μg/m3 (18) 28.0
 
March 29, 2020, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 31.0
 
March 29, 2020, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 32.0
 
March 29, 2020, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 7.0 μg/m3 (6) 3.9 μg/m3 (16) 32.0
 
March 29, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A 8.0 μg/m3 (7) 2.3 μg/m3 (10) 33.0
 
March 28, 2020, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 7.0 μg/m3 (6) 2.1 μg/m3 (9) 36.0
 
March 28, 2020, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 37.0
 
March 28, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (36) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 36.0
 
March 28, 2020, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 2.0 μg/m3 (2) 4.4 μg/m3 (18) 35.0
 
March 28, 2020, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 3.0 μg/m3 (3) 7.9 μg/m3 (33) 33.0
 
March 28, 2020, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 39.0 ppb (30) N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 30.0
 
March 28, 2020, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 32.0 ppb (25) N/A 5.0 μg/m3 (5) 5.8 μg/m3 (24) 25.0
 
March 28, 2020, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 4.0 ppb (6) 28.0 ppb (22) N/A 5.0 μg/m3 (5) 7.1 μg/m3 (30) 30.0
 
March 28, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 20.0
 
March 28, 2020, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 20.0
 
March 28, 2020, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (19) 20.0
 
March 28, 2020, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 1.3 μg/m3 (5) 22.0
 
March 28, 2020, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 1.8 μg/m3 (8) 23.0
 
March 28, 2020, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 25.0
 
March 28, 2020, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 3.0 μg/m3 (3) -0.9 μg/m3 (0) 25.0
 
March 28, 2020, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (9) 25.0
 
March 28, 2020, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 5.0 μg/m3 (5) 5.9 μg/m3 (25) 25.0
 
March 28, 2020, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 5.8 μg/m3 (24) 26.0
 
March 28, 2020, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 4.0 μg/m3 (4) 5.1 μg/m3 (21) 25.0
 
March 28, 2020, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 25.0
 
March 28, 2020, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 7.0 μg/m3 (6) 1.6 μg/m3 (7) 28.0
 
March 28, 2020, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 7.0 μg/m3 (6) -0.8 μg/m3 (0) 30.0
 
March 28, 2020, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 8.0 μg/m3 (7) 1.8 μg/m3 (8) 31.0
 
March 28, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 35.0
 
March 27, 2020, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 50.0 ppb (38) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 38.0
 
March 27, 2020, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 39.0
 
March 27, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 4.0 μg/m3 (4) 3.4 μg/m3 (14) 38.0
 
March 27, 2020, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 49.0 ppb (38) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (15) 38.0
 
March 27, 2020, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 35.0
 
March 27, 2020, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 6.0 μg/m3 (5) 4.7 μg/m3 (20) 35.0
 
March 27, 2020, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 30.0
 
March 27, 2020, 4 p.m. 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 5.0 μg/m3 (5) 1.7 μg/m3 (7) 25.0
 
March 27, 2020, 3 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 22.0
 
March 27, 2020, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 18.0
 
March 27, 2020, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 4.0 μg/m3 (4) 0.2 μg/m3 (1) 13.0
 
March 27, 2020, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (3) 11.0
 
March 27, 2020, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (9) 12.0
 
March 27, 2020, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 3.0 μg/m3 (3) 3.1 μg/m3 (13) 13.0
 
March 27, 2020, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 12.0
 
March 27, 2020, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 15.0 ppb (12) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
March 27, 2020, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 2.0 μg/m3 (2) 5.4 μg/m3 (23) 23.0
 
March 27, 2020, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 3.0 μg/m3 (3) 4.1 μg/m3 (17) 17.0
 
March 27, 2020, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 16.0
 
March 27, 2020, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 4.7 μg/m3 (20) 20.0
 
March 27, 2020, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 23.0
 
March 27, 2020, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 6.0 μg/m3 (5) 8.8 μg/m3 (37) 37.0
 
March 27, 2020, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 15.2 μg/m3 (57) 57.0
 
March 27, 2020, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 6.0 ppb (9) 29.0 ppb (22) N/A 17.0 μg/m3 (15) 18.3 μg/m3 (63) 63.0
 
March 26, 2020, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 6.0 ppb (9) 33.0 ppb (25) N/A 23.0 μg/m3 (21) 10.9 μg/m3 (45) 45.0
 
March 26, 2020, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 39.0 ppb (30) N/A 14.0 μg/m3 (13) 7.3 μg/m3 (30) 30.0
 
March 26, 2020, 9 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 9.0 μg/m3 (8) 5.5 μg/m3 (23) 30.0
 
March 26, 2020, 8 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 7.0 μg/m3 (6) 5.1 μg/m3 (21) 31.0
 
March 26, 2020, 7 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 5.0 μg/m3 (5) 5.4 μg/m3 (23) 31.0
 
March 26, 2020, 6 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 4.0 μg/m3 (4) 7.0 μg/m3 (29) 30.0
 
March 26, 2020, 5 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 6.0 μg/m3 (5) 8.4 μg/m3 (35) 35.0
 
March 26, 2020, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 9.8 μg/m3 (41) 41.0
 
March 26, 2020, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 9.7 μg/m3 (40) 40.0
 
March 26, 2020, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 10.0 μg/m3 (9) 11.8 μg/m3 (49) 49.0
 
March 26, 2020, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 10.5 μg/m3 (44) 44.0
 
March 26, 2020, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
March 26, 2020, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 8.0 μg/m3 (7) 8.4 μg/m3 (35) 35.0
 
March 26, 2020, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 8.0 μg/m3 (7) 6.3 μg/m3 (26) 26.0
 
March 26, 2020, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 5.0 μg/m3 (5) 7.9 μg/m3 (33) 33.0
 
March 26, 2020, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 5.8 μg/m3 (24) 24.0
 
March 26, 2020, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 4.0 μg/m3 (4) 1.7 μg/m3 (7) 19.0
 
March 26, 2020, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 21.0
 
March 26, 2020, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 3.0 μg/m3 (3) 3.7 μg/m3 (15) 23.0
 
March 26, 2020, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 2.0 μg/m3 (2) 3.4 μg/m3 (14) 24.0
 
March 26, 2020, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 3.0 μg/m3 (3) 1.4 μg/m3 (6) 24.0
 
March 26, 2020, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 23.0
 
March 26, 2020, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 24.0
 
March 26, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 6.0 μg/m3 (5) 4.7 μg/m3 (20) 28.0
 
March 25, 2020, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 31.0
 
March 25, 2020, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 31.0
 
March 25, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 4.0 μg/m3 (4) 2.4 μg/m3 (10) 31.0
 
March 25, 2020, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 3.0 μg/m3 (3) 4.5 μg/m3 (19) 31.0
 
March 25, 2020, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (9) 28.0
 
March 25, 2020, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 28.0
 
March 25, 2020, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 28.0
 
March 25, 2020, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 1.0 μg/m3 (1) 1.6 μg/m3 (7) 28.0
 
March 25, 2020, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (2) 27.0
 
March 25, 2020, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 27.0
 
March 25, 2020, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 3.0 μg/m3 (3) 0.1 μg/m3 (0) 28.0
 
March 25, 2020, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 3.0 μg/m3 (3) 1.1 μg/m3 (5) 28.0
 
March 25, 2020, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 3.0 μg/m3 (3) 2.8 μg/m3 (12) 28.0
 
March 25, 2020, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 3.0 μg/m3 (3) 4.1 μg/m3 (17) 27.0
 
March 25, 2020, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 2.0 μg/m3 (2) 1.7 μg/m3 (7) 26.0
 
March 25, 2020, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (3) 26.0
 
March 25, 2020, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 4.0 μg/m3 (4) 0.9 μg/m3 (4) 25.0
 
March 25, 2020, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 1.0 μg/m3 (1) 2.2 μg/m3 (9) 26.0
 
March 25, 2020, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 26.0
 
March 25, 2020, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 24.0
 
March 25, 2020, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 3.5 μg/m3 (15) 25.0
 
March 25, 2020, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 24.0
 
March 25, 2020, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 6.8 μg/m3 (28) 28.0
 
March 25, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 32.0
 
March 24, 2020, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 35.0
 
March 24, 2020, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 34.0
 
March 24, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 6.0 μg/m3 (5) 4.5 μg/m3 (19) 35.0
 
March 24, 2020, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 35.0
 
March 24, 2020, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (11) 35.0
 
March 24, 2020, 6 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 3.0 μg/m3 (3) 4.1 μg/m3 (17) 33.0
 
March 24, 2020, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 28.0
 
March 24, 2020, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 6.4 μg/m3 (27) 27.0
 
March 24, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
March 24, 2020, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 8.0 μg/m3 (7) 7.3 μg/m3 (30) 30.0
 
March 24, 2020, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
March 24, 2020, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (14) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 15.0
 
March 24, 2020, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 6.0 μg/m3 (5) 6.4 μg/m3 (27) 27.0
 
March 24, 2020, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 5.0 μg/m3 (5) 7.2 μg/m3 (30) 30.0
 
March 24, 2020, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 5.0 μg/m3 (5) 6.4 μg/m3 (27) 27.0
 
March 24, 2020, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 5.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
March 24, 2020, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 5.0 μg/m3 (5) 5.9 μg/m3 (25) 25.0
 
March 24, 2020, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 21.0
 
March 24, 2020, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 5.0 μg/m3 (5) 5.8 μg/m3 (24) 24.0
 
March 24, 2020, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 21.0
 
March 24, 2020, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 21.0
 
March 24, 2020, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 22.0
 
March 24, 2020, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 5.0 μg/m3 (5) 3.2 μg/m3 (13) 25.0
 
March 24, 2020, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 27.0
 
March 23, 2020, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 6.0 μg/m3 (5) 4.3 μg/m3 (18) 27.0
 
March 23, 2020, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (29) N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 29.0
 
March 23, 2020, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 5.0 μg/m3 (5) 1.6 μg/m3 (7) 31.0
 
March 23, 2020, 8 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 5.0 μg/m3 (5) 3.2 μg/m3 (13) 31.0
 
March 23, 2020, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 7.0 μg/m3 (6) 5.5 μg/m3 (23) 29.0
 
March 23, 2020, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 6.0 μg/m3 (5) 7.3 μg/m3 (30) 30.0
 
March 23, 2020, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 6.3 μg/m3 (26) 26.0