ID: 2663

AQSQID: 380530002

Site Name: Trnp-Nu

Added: April 21, 2020, 6:24 p.m.

Updated: Nov. 26, 2020, 4:41 p.m.

Location: Watford City (Scenic Loop Dr), ND

Reporting: True, Located: True

Current AQI: 26.0

Watford City (Scenic Loop Dr) ND, US: 47.6011, -103.2642

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 26, 2020, 2 p.m. 1.5 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 23.0 ppb (22) N/A 5.4 μg/m3 (5) 6.1 μg/m3 (26) 26.0
 
Nov. 26, 2020, 1 p.m. 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 23.0 ppb (22) N/A 5.4 μg/m3 (5) 6.5 μg/m3 (28) 28.0
 
Nov. 26, 2020, noon 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 5.9 μg/m3 (6) 5.8 μg/m3 (25) 25.0
 
Nov. 26, 2020, 11 a.m. 1.5 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 5.9 μg/m3 (6) 8.5 μg/m3 (36) 36.0
 
Nov. 26, 2020, 10 a.m. 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 5.9 μg/m3 (6) 6.7 μg/m3 (28) 28.0
 
Nov. 26, 2020, 9 a.m. 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 29.0 ppb (27) N/A 5.5 μg/m3 (6) 6.0 μg/m3 (25) 27.0
 
Nov. 26, 2020, 8 a.m. 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 29.0 ppb (27) N/A 5.4 μg/m3 (5) 6.6 μg/m3 (28) 28.0
 
Nov. 26, 2020, 7 a.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 5.4 μg/m3 (5) 6.5 μg/m3 (28) 28.0
 
Nov. 26, 2020, 6 a.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 7.2 μg/m3 (7) 5.0 μg/m3 (21) 26.0
 
Nov. 26, 2020, 5 a.m. 2.5 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 7.4 μg/m3 (7) 5.0 μg/m3 (21) 26.0
 
Nov. 26, 2020, 4 a.m. 2.5 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 8.5 μg/m3 (8) 6.3 μg/m3 (27) 27.0
 
Nov. 26, 2020, 3 a.m. 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 8.6 μg/m3 (8) 4.1 μg/m3 (18) 25.0
 
Nov. 26, 2020, 2 a.m. 1.5 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 9.5 μg/m3 (9) 3.5 μg/m3 (15) 26.0
 
Nov. 26, 2020, 1 a.m. 1.3 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 7.5 μg/m3 (7) 3.5 μg/m3 (15) 25.0
 
Nov. 26, 2020, midnight 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 6.9 μg/m3 (7) 1.2 μg/m3 (5) 25.0
 
Nov. 25, 2020, 11 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 6.9 μg/m3 (7) 6.2 μg/m3 (26) 26.0
 
Nov. 25, 2020, 10 p.m. 1.0 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 6.9 μg/m3 (7) 8.1 μg/m3 (34) 34.0
 
Nov. 25, 2020, 9 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 6.9 μg/m3 (7) 1.3 μg/m3 (6) 26.0
 
Nov. 25, 2020, 8 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 27.0
 
Nov. 25, 2020, 7 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 5.5 μg/m3 (6) 2.4 μg/m3 (10) 26.0
 
Nov. 25, 2020, 6 p.m. 1.2 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 4.3 μg/m3 (4) 2.6 μg/m3 (11) 25.0
 
Nov. 25, 2020, 5 p.m. 1.2 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 4.9 μg/m3 (5) 0.7 μg/m3 (3) 26.0
 
Nov. 25, 2020, 4 p.m. 1.2 ppb (2) 0.8 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 4.9 μg/m3 (5) -0.5 μg/m3 (0) 26.0
 
Nov. 25, 2020, 3 p.m. 1.2 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (10) 25.0
 
Nov. 25, 2020, 2 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 2.6 μg/m3 (3) 2.5 μg/m3 (11) 24.0
 
Nov. 25, 2020, 1 p.m. 1.1 ppb (2) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 3.8 μg/m3 (4) 1.4 μg/m3 (6) 25.0
 
Nov. 25, 2020, noon 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 4.4 μg/m3 (5) 1.9 μg/m3 (8) 25.0
 
Nov. 25, 2020, 11 a.m. 1.1 ppb (2) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 22.0 ppb (21) N/A 3.3 μg/m3 (4) 1.7 μg/m3 (8) 21.0
 
Nov. 25, 2020, 10 a.m. 1.3 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 17.0 ppb (16) N/A 3.4 μg/m3 (4) 1.8 μg/m3 (8) 16.0
 
Nov. 25, 2020, 9 a.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 4.1 μg/m3 (4) 1.1 μg/m3 (5) 13.0
 
Nov. 25, 2020, 8 a.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 4.4 μg/m3 (5) 1.0 μg/m3 (5) 13.0
 
Nov. 25, 2020, 7 a.m. 2.3 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 4.5 μg/m3 (5) 3.5 μg/m3 (15) 15.0
 
Nov. 25, 2020, 6 a.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 4.2 μg/m3 (4) 4.5 μg/m3 (19) 19.0
 
Nov. 25, 2020, 5 a.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 11.0 ppb (11) N/A 4.7 μg/m3 (5) 5.8 μg/m3 (25) 25.0
 
Nov. 25, 2020, 4 a.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 4.9 μg/m3 (5) 7.0 μg/m3 (30) 30.0
 
Nov. 25, 2020, 3 a.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 5.6 μg/m3 (6) 1.8 μg/m3 (8) 12.0
 
Nov. 25, 2020, 2 a.m. 4.4 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 6.1 μg/m3 (6) 1.3 μg/m3 (6) 13.0
 
Nov. 25, 2020, 1 a.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 6.6 μg/m3 (7) 4.9 μg/m3 (21) 21.0
 
Nov. 25, 2020, midnight 6.4 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 6.2 μg/m3 (6) 6.2 μg/m3 (26) 26.0
 
Nov. 24, 2020, 11 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 19.0 ppb (18) N/A 7.0 μg/m3 (7) 3.3 μg/m3 (14) 18.0
 
Nov. 24, 2020, 10 p.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 5.5 μg/m3 (6) 4.9 μg/m3 (21) 24.0
 
Nov. 24, 2020, 9 p.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 5.9 μg/m3 (6) 6.1 μg/m3 (26) 26.0
 
Nov. 24, 2020, 8 p.m. 2.3 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 6.6 μg/m3 (7) 5.1 μg/m3 (22) 25.0
 
Nov. 24, 2020, 7 p.m. 2.9 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 5.7 μg/m3 (6) 4.0 μg/m3 (17) 25.0
 
Nov. 24, 2020, 6 p.m. 2.3 ppb (3) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 4.5 μg/m3 (5) 7.0 μg/m3 (30) 30.0
 
Nov. 24, 2020, 5 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A 6.7 μg/m3 (7) 8.9 μg/m3 (38) 38.0
 
Nov. 24, 2020, 4 p.m. 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 6.6 μg/m3 (7) 7.1 μg/m3 (30) 30.0
 
Nov. 24, 2020, 3 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 6.9 μg/m3 (7) 7.1 μg/m3 (30) 30.0
 
Nov. 24, 2020, 2 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 7.8 μg/m3 (8) 8.8 μg/m3 (37) 37.0
 
Nov. 24, 2020, 1 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 23.0 ppb (22) N/A 8.3 μg/m3 (8) 10.4 μg/m3 (44) 44.0
 
Nov. 24, 2020, noon 3.6 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 21.0 ppb (20) N/A 9.5 μg/m3 (9) 11.9 μg/m3 (50) 50.0
 
Nov. 24, 2020, 11 a.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 21.0 ppb (20) N/A 9.6 μg/m3 (9) 10.8 μg/m3 (46) 46.0
 
Nov. 24, 2020, 10 a.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 23.0 ppb (22) N/A 11.2 μg/m3 (11) 14.3 μg/m3 (56) 56.0
 
Nov. 24, 2020, 9 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (5) 20.0 ppb (19) N/A 9.0 μg/m3 (9) 13.4 μg/m3 (54) 54.0
 
Nov. 24, 2020, 8 a.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 19.0 ppb (18) N/A 5.9 μg/m3 (6) 9.1 μg/m3 (38) 38.0
 
Nov. 24, 2020, 7 a.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 5.5 μg/m3 (6) 2.1 μg/m3 (9) 18.0
 
Nov. 24, 2020, 6 a.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 6.1 μg/m3 (6) 5.7 μg/m3 (24) 24.0
 
Nov. 24, 2020, 5 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 17.0 ppb (16) N/A 6.1 μg/m3 (6) 6.6 μg/m3 (28) 28.0
 
Nov. 24, 2020, 4 a.m. 1.4 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 5.6 μg/m3 (6) 1.1 μg/m3 (5) 15.0
 
Nov. 24, 2020, 3 a.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 4.7 μg/m3 (5) 0.3 μg/m3 (2) 12.0
 
Nov. 24, 2020, 2 a.m. 1.1 ppb (2) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 4.7 μg/m3 (5) 2.4 μg/m3 (10) 12.0
 
Nov. 24, 2020, 1 a.m. 1.2 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 4.9 μg/m3 (5) 1.5 μg/m3 (7) 12.0
 
Nov. 24, 2020, midnight 1.3 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 15.0 ppb (14) N/A 5.8 μg/m3 (6) 0.4 μg/m3 (2) 14.0
 
Nov. 23, 2020, 11 p.m. 1.3 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 6.5 μg/m3 (7) 1.1 μg/m3 (5) 17.0
 
Nov. 23, 2020, 10 p.m. 1.4 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 7.3 μg/m3 (7) 1.9 μg/m3 (8) 22.0
 
Nov. 23, 2020, 9 p.m. 1.6 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 6.7 μg/m3 (7) 2.6 μg/m3 (11) 23.0
 
Nov. 23, 2020, 8 p.m. 1.4 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 5.3 μg/m3 (5) 0.4 μg/m3 (2) 24.0
 
Nov. 23, 2020, 7 p.m. 1.5 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) N/A N/A N/A N/A 3.0
 
Nov. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A N/A 3.0
 
Nov. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Nov. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
Nov. 23, 2020, 3 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 3.7 μg/m3 (4) 0.7 μg/m3 (3) 23.0
 
Nov. 23, 2020, 2 p.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 2.6 μg/m3 (3) 1.6 μg/m3 (7) 23.0
 
Nov. 23, 2020, 1 p.m. 0.8 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 3.2 μg/m3 (3) 1.9 μg/m3 (8) 24.0
 
Nov. 23, 2020, noon 0.8 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 2.5 μg/m3 (3) -0.9 μg/m3 (0) 25.0
 
Nov. 23, 2020, 11 a.m. 0.8 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 1.6 μg/m3 (2) -1.6 μg/m3 (0) 25.0
 
Nov. 23, 2020, 10 a.m. 0.8 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 2.2 μg/m3 (3) 0.2 μg/m3 (1) 25.0
 
Nov. 23, 2020, 9 a.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 2.0 μg/m3 (2) -0.4 μg/m3 (0) 25.0
 
Nov. 23, 2020, 8 a.m. 1.1 ppb (2) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 2.2 μg/m3 (3) 0.9 μg/m3 (4) 25.0
 
Nov. 23, 2020, 7 a.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 22.0 ppb (21) N/A 3.9 μg/m3 (4) 2.5 μg/m3 (11) 21.0
 
Nov. 23, 2020, 6 a.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 19.0
 
Nov. 23, 2020, 5 a.m. 2.2 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 21.0 ppb (20) N/A 4.1 μg/m3 (4) 2.5 μg/m3 (11) 20.0
 
Nov. 23, 2020, 4 a.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 5.1 μg/m3 (5) 1.8 μg/m3 (8) 18.0
 
Nov. 23, 2020, 3 a.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 4.7 μg/m3 (5) 1.1 μg/m3 (5) 18.0
 
Nov. 23, 2020, 2 a.m. 2.2 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 17.0 ppb (16) N/A 3.8 μg/m3 (4) 1.9 μg/m3 (8) 16.0
 
Nov. 23, 2020, 1 a.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 17.0 ppb (16) N/A 6.2 μg/m3 (6) 2.3 μg/m3 (10) 16.0
 
Nov. 23, 2020, midnight 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 4.8 μg/m3 (5) 2.7 μg/m3 (12) 18.0
 
Nov. 22, 2020, 11 p.m. 0.9 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 2.4 μg/m3 (3) 1.7 μg/m3 (8) 22.0
 
Nov. 22, 2020, 10 p.m. 0.9 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 2.7 μg/m3 (3) 2.2 μg/m3 (10) 25.0
 
Nov. 22, 2020, 9 p.m. 1.0 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 31.0 ppb (29) N/A 2.7 μg/m3 (3) 3.0 μg/m3 (13) 29.0
 
Nov. 22, 2020, 8 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 2.7 μg/m3 (3) 1.8 μg/m3 (8) 28.0
 
Nov. 22, 2020, 7 p.m. 1.1 ppb (2) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 31.0 ppb (29) N/A 1.3 μg/m3 (2) 2.4 μg/m3 (10) 29.0
 
Nov. 22, 2020, 6 p.m. 1.5 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 32.0 ppb (30) N/A 1.5 μg/m3 (2) 3.7 μg/m3 (16) 30.0
 
Nov. 22, 2020, 5 p.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 4.9 μg/m3 (5) 4.7 μg/m3 (20) 25.0
 
Nov. 22, 2020, 4 p.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 21.0 ppb (20) N/A 5.4 μg/m3 (5) 4.9 μg/m3 (21) 21.0
 
Nov. 22, 2020, 3 p.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 15.0 ppb (14) N/A 5.4 μg/m3 (5) 4.5 μg/m3 (19) 19.0
 
Nov. 22, 2020, 2 p.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 11.0 ppb (11) N/A 3.8 μg/m3 (4) 1.2 μg/m3 (5) 11.0
 
Nov. 22, 2020, 1 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 3.2 μg/m3 (3) 1.0 μg/m3 (5) 13.0
 
Nov. 22, 2020, noon 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 17.0 ppb (16) N/A 3.9 μg/m3 (4) 3.4 μg/m3 (15) 16.0
 
Nov. 22, 2020, 11 a.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 23.0 ppb (22) N/A 3.7 μg/m3 (4) 2.6 μg/m3 (11) 22.0
 
Nov. 22, 2020, 10 a.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 4.4 μg/m3 (5) 3.7 μg/m3 (16) 24.0
 
Nov. 22, 2020, 9 a.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 5.6 μg/m3 (6) 4.5 μg/m3 (19) 24.0
 
Nov. 22, 2020, 8 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 5.4 μg/m3 (5) 1.3 μg/m3 (6) 25.0
 
Nov. 22, 2020, 7 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 4.7 μg/m3 (5) 1.8 μg/m3 (8) 25.0
 
Nov. 22, 2020, 6 a.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 4.7 μg/m3 (5) 3.3 μg/m3 (14) 24.0
 
Nov. 22, 2020, 5 a.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 3.0 ppb (5) 25.0 ppb (24) N/A 4.5 μg/m3 (5) 3.0 μg/m3 (13) 24.0
 
Nov. 22, 2020, 4 a.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 25.0 ppb (24) N/A 5.1 μg/m3 (5) 2.0 μg/m3 (9) 24.0
 
Nov. 22, 2020, 3 a.m. 1.3 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 26.0 ppb (25) N/A 4.0 μg/m3 (4) -3.4 μg/m3 (0) 25.0
 
Nov. 22, 2020, 2 a.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 3.5 μg/m3 (4) -3.2 μg/m3 (0) 25.0
 
Nov. 22, 2020, 1 a.m. 0.8 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 3.7 μg/m3 (4) -0.2 μg/m3 (0) 26.0
 
Nov. 22, 2020, midnight 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 4.6 μg/m3 (5) -0.6 μg/m3 (0) 28.0
 
Nov. 21, 2020, 11 p.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 5.4 μg/m3 (5) 1.7 μg/m3 (8) 25.0
 
Nov. 21, 2020, 10 p.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 5.2 μg/m3 (5) 3.2 μg/m3 (14) 25.0
 
Nov. 21, 2020, 9 p.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 24.0
 
Nov. 21, 2020, 8 p.m. 1.0 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 4.0 μg/m3 (4) 4.9 μg/m3 (21) 25.0
 
Nov. 21, 2020, 7 p.m. 1.0 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 3.5 μg/m3 (4) 2.0 μg/m3 (9) 25.0
 
Nov. 21, 2020, 6 p.m. 1.2 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 27.0 ppb (25) N/A 3.9 μg/m3 (4) 3.1 μg/m3 (13) 25.0
 
Nov. 21, 2020, 5 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 21.0 ppb (20) N/A 6.4 μg/m3 (6) 1.8 μg/m3 (8) 20.0
 
Nov. 21, 2020, 4 p.m. 3.8 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 5.7 μg/m3 (6) -0.7 μg/m3 (0) 13.0
 
Nov. 21, 2020, 3 p.m. 3.9 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 9.0 ppb (9) N/A 5.0 μg/m3 (5) -0.1 μg/m3 (0) 9.0
 
Nov. 21, 2020, 2 p.m. 3.3 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 6.0 ppb (6) N/A 4.7 μg/m3 (5) 1.6 μg/m3 (7) 7.0
 
Nov. 21, 2020, 1 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 8.0 ppb (8) N/A 5.8 μg/m3 (6) 3.8 μg/m3 (16) 16.0
 
Nov. 21, 2020, noon 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 6.1 μg/m3 (6) 4.5 μg/m3 (19) 19.0
 
Nov. 21, 2020, 11 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 6.2 μg/m3 (6) 2.4 μg/m3 (10) 10.0
 
Nov. 21, 2020, 10 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 6.4 μg/m3 (6) 3.6 μg/m3 (16) 16.0
 
Nov. 21, 2020, 9 a.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 6.6 μg/m3 (7) 1.8 μg/m3 (8) 8.0
 
Nov. 21, 2020, 8 a.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 6.2 μg/m3 (6) 1.7 μg/m3 (8) 8.0
 
Nov. 21, 2020, 7 a.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 6.4 μg/m3 (6) 4.3 μg/m3 (18) 18.0
 
Nov. 21, 2020, 6 a.m. 1.6 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 6.4 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Nov. 21, 2020, 5 a.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 6.1 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
Nov. 21, 2020, 4 a.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 6.6 μg/m3 (7) 2.8 μg/m3 (12) 12.0
 
Nov. 21, 2020, 3 a.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 7.0 ppb (7) N/A 6.4 μg/m3 (6) 3.8 μg/m3 (16) 16.0
 
Nov. 21, 2020, 2 a.m. 2.6 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 7.0 ppb (7) N/A 9.4 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Nov. 21, 2020, 1 a.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 10.0 ppb (10) N/A 8.4 μg/m3 (8) 7.1 μg/m3 (30) 30.0
 
Nov. 21, 2020, midnight 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 8.5 μg/m3 (8) 9.7 μg/m3 (41) 41.0
 
Nov. 20, 2020, 11 p.m. 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 9.3 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Nov. 20, 2020, 10 p.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 20.0 ppb (19) N/A 8.6 μg/m3 (8) 7.5 μg/m3 (32) 32.0
 
Nov. 20, 2020, 9 p.m. 1.7 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 22.0 ppb (21) N/A 8.1 μg/m3 (8) 11.6 μg/m3 (49) 49.0
 
Nov. 20, 2020, 8 p.m. 1.7 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 22.0 ppb (21) N/A 7.2 μg/m3 (7) 6.5 μg/m3 (28) 28.0
 
Nov. 20, 2020, 7 p.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 22.0 ppb (21) N/A 6.2 μg/m3 (6) 7.3 μg/m3 (31) 31.0
 
Nov. 20, 2020, 6 p.m. 2.1 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 23.0 ppb (22) N/A 7.3 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Nov. 20, 2020, 5 p.m. 2.1 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 21.0 ppb (20) N/A 8.0 μg/m3 (8) 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 4 p.m. 2.4 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 21.0 ppb (20) N/A 8.6 μg/m3 (8) 9.2 μg/m3 (39) 39.0
 
Nov. 20, 2020, 3 p.m. 2.6 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 17.0 ppb (16) N/A 9.8 μg/m3 (10) 9.4 μg/m3 (40) 40.0
 
Nov. 20, 2020, 2 p.m. 2.5 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 16.0 ppb (15) N/A 9.4 μg/m3 (9) 8.6 μg/m3 (36) 36.0
 
Nov. 20, 2020, 1 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 17.0 ppb (16) N/A 9.1 μg/m3 (9) 8.7 μg/m3 (37) 37.0
 
Nov. 20, 2020, noon 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 17.0 ppb (16) N/A 10.5 μg/m3 (10) 14.1 μg/m3 (56) 56.0
 
Nov. 20, 2020, 11 a.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 16.0 ppb (15) N/A 8.9 μg/m3 (9) 8.9 μg/m3 (38) 38.0
 
Nov. 20, 2020, 10 a.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 17.0 ppb (16) N/A 9.3 μg/m3 (9) 7.9 μg/m3 (33) 33.0
 
Nov. 20, 2020, 9 a.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 19.0 ppb (18) N/A 11.4 μg/m3 (11) 9.8 μg/m3 (41) 41.0
 
Nov. 20, 2020, 8 a.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 10.2 μg/m3 (10) 10.3 μg/m3 (43) 43.0
 
Nov. 20, 2020, 7 a.m. 2.5 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 19.0 ppb (18) N/A 8.0 μg/m3 (8) 8.2 μg/m3 (35) 35.0
 
Nov. 20, 2020, 6 a.m. 2.2 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 21.0 ppb (20) N/A 8.3 μg/m3 (8) 4.1 μg/m3 (18) 20.0
 
Nov. 20, 2020, 5 a.m. 2.2 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 5.2 μg/m3 (5) 4.3 μg/m3 (18) 22.0
 
Nov. 20, 2020, 4 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 4.5 μg/m3 (5) 5.5 μg/m3 (23) 24.0
 
Nov. 20, 2020, 3 a.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 4.7 μg/m3 (5) 4.0 μg/m3 (17) 23.0
 
Nov. 20, 2020, 2 a.m. 2.2 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 21.0 ppb (20) N/A 6.3 μg/m3 (6) 3.0 μg/m3 (13) 20.0
 
Nov. 20, 2020, 1 a.m. 2.2 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 5.5 μg/m3 (6) 1.8 μg/m3 (8) 19.0
 
Nov. 20, 2020, midnight 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 21.0 ppb (20) N/A 5.9 μg/m3 (6) 4.0 μg/m3 (17) 20.0
 
Nov. 19, 2020, 11 p.m. 2.3 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 5.9 μg/m3 (6) 4.0 μg/m3 (17) 19.0
 
Nov. 19, 2020, 10 p.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 4.6 μg/m3 (5) 1.0 μg/m3 (5) 23.0
 
Nov. 19, 2020, 9 p.m. 2.4 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 6.0 μg/m3 (6) 3.2 μg/m3 (14) 22.0
 
Nov. 19, 2020, 8 p.m. 2.4 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 5.4 μg/m3 (5) 4.4 μg/m3 (19) 19.0
 
Nov. 19, 2020, 7 p.m. 2.9 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 15.0 ppb (14) N/A 4.2 μg/m3 (4) 3.6 μg/m3 (16) 16.0
 
Nov. 19, 2020, 6 p.m. 3.6 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 5.7 μg/m3 (6) 3.4 μg/m3 (15) 15.0
 
Nov. 19, 2020, 5 p.m. 4.8 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 5.2 μg/m3 (5) 3.2 μg/m3 (14) 14.0
 
Nov. 19, 2020, 4 p.m. 5.3 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 6.3 μg/m3 (6) 1.3 μg/m3 (6) 12.0
 
Nov. 19, 2020, 3 p.m. 5.2 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 11.0 ppb (11) N/A 5.4 μg/m3 (5) 3.5 μg/m3 (15) 15.0