ID: 642

AQSQID: 371830014

Site Name: Millbrook Ncore

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

Updated: March 6, 2021, 7:32 a.m.

Location: Raleigh (Neast Raleigh), NC

Reporting: True, Located: True

Current AQI: 36.0

Raleigh (Neast Raleigh) NC, US: 35.856111, -78.574167

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 6, 2021, 6 a.m. N/A N/A 2.7 ppb (3) N/A N/A N/A 38.0 ppb (36) 0.16 ppb (3) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 36.0
 
March 6, 2021, 5 a.m. 2.6 ppb (3) 0.1 ppb (1) 3.2 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 36.0
 
March 6, 2021, 4 a.m. 2.4 ppb (3) 0.2 ppb (1) 3.1 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.17 ppb (3) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 37.0
 
March 6, 2021, 3 a.m. 2.9 ppb (3) 0.0 ppb (0) 3.4 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) 0.17 ppb (3) 12.0 μg/m3 (12) 13.0 μg/m3 (53) 53.0
 
March 6, 2021, 2 a.m. 9.2 ppb (9) 0.2 ppb (1) 8.4 ppb (8) 9.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (29) 0.32 ppb (4) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
March 6, 2021, 1 a.m. 24.8 ppb (24) 1.6 ppb (2) 23.4 ppb (23) 23.0 ppb (22) N/A 0.0 ppb (0) 17.0 ppb (16) 0.45 ppb (6) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
March 6, 2021, midnight 13.4 ppb (13) 0.3 ppb (1) 17.5 ppb (17) 13.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (25) 0.29 ppb (4) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 25.0
 
March 5, 2021, 11 p.m. 5.1 ppb (5) 0.2 ppb (1) 7.0 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 37.0
 
March 5, 2021, 10 p.m. 2.1 ppb (2) 0.1 ppb (1) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.16 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 41.0
 
March 5, 2021, 9 p.m. 1.1 ppb (2) 0.2 ppb (1) 1.7 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) 0.15 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 43.0
 
March 5, 2021, 8 p.m. 1.4 ppb (2) 0.4 ppb (1) 1.9 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.15 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 42.0
 
March 5, 2021, 7 p.m. 1.2 ppb (2) 0.4 ppb (1) 1.8 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.15 ppb (2) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 42.0
 
March 5, 2021, 6 p.m. 1.1 ppb (2) 0.3 ppb (1) 1.7 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) 0.15 ppb (2) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 41.0
 
March 5, 2021, 5 p.m. 1.1 ppb (2) 0.4 ppb (1) 1.7 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 40.0
 
March 5, 2021, 4 p.m. 1.9 ppb (2) 0.7 ppb (1) 2.6 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.16 ppb (3) 8.0 μg/m3 (8) 8.0 μg/m3 (34) 35.0
 
March 5, 2021, 3 p.m. 2.2 ppb (3) 1.0 ppb (1) 2.9 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.17 ppb (3) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 32.0
 
March 5, 2021, 2 p.m. 2.2 ppb (3) 0.8 ppb (1) 2.9 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) 11.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
March 5, 2021, 1 p.m. 4.7 ppb (5) 1.4 ppb (2) 5.0 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.19 ppb (3) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
March 5, 2021, noon 8.8 ppb (9) 1.8 ppb (2) 9.5 ppb (9) 7.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
March 5, 2021, 11 a.m. 6.9 ppb (7) 0.8 ppb (1) 7.0 ppb (7) 6.0 ppb (6) N/A 1.0 ppb (2) 28.0 ppb (26) 0.18 ppb (3) 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
March 5, 2021, 10 a.m. 5.5 ppb (6) 0.5 ppb (1) 6.6 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.18 ppb (3) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 28.0
 
March 5, 2021, 9 a.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 31.0
 
March 5, 2021, 8 a.m. 4.3 ppb (5) 1.0 ppb (1) 4.4 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.17 ppb (3) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
March 5, 2021, 7 a.m. 2.7 ppb (3) 0.4 ppb (1) 3.3 ppb (4) 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.16 ppb (3) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 37.0
 
March 5, 2021, 6 a.m. N/A N/A 2.4 ppb (3) N/A N/A N/A 42.0 ppb (39) 0.15 ppb (2) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 39.0
 
March 5, 2021, 5 a.m. 1.6 ppb (2) 0.1 ppb (1) 2.4 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 39.0
 
March 5, 2021, 4 a.m. 1.5 ppb (2) 0.1 ppb (1) 2.2 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 40.0
 
March 5, 2021, 3 a.m. 2.2 ppb (3) 0.0 ppb (0) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.16 ppb (3) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 41.0
 
March 5, 2021, 2 a.m. 3.5 ppb (4) 0.1 ppb (1) 4.2 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (2) 43.0 ppb (40) 0.18 ppb (3) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 40.0
 
March 5, 2021, 1 a.m. 4.3 ppb (5) 0.1 ppb (1) 5.2 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (40) 0.19 ppb (3) 9.0 μg/m3 (9) 0.0 μg/m3 (0) 40.0
 
March 5, 2021, midnight 5.7 ppb (6) 0.1 ppb (1) 6.5 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (39) 0.21 ppb (3) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 39.0
 
March 4, 2021, 11 p.m. 2.8 ppb (3) 0.1 ppb (1) 3.8 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 43.0
 
March 4, 2021, 10 p.m. 1.9 ppb (2) 0.3 ppb (1) 2.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) 0.15 ppb (2) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 45.0
 
March 4, 2021, 9 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.14 ppb (2) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 47.0
 
March 4, 2021, 8 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.14 ppb (2) 8.0 μg/m3 (8) 2.0 μg/m3 (9) 48.0
 
March 4, 2021, 7 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.15 ppb (2) 9.0 μg/m3 (9) 0.0 μg/m3 (0) 48.0
 
March 4, 2021, 6 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.16 ppb (3) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 47.0
 
March 4, 2021, 5 p.m. N/A N/A 2.4 ppb (3) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.16 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 46.0
 
March 4, 2021, 4 p.m. N/A N/A 2.2 ppb (3) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.22 ppb (3) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 45.0
 
March 4, 2021, 3 p.m. N/A N/A 4.0 ppb (4) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.18 ppb (3) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 43.0
 
March 4, 2021, 2 p.m. N/A N/A 5.2 ppb (5) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.21 ppb (3) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 39.0
 
March 4, 2021, 1 p.m. N/A N/A 10.2 ppb (10) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.28 ppb (4) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
March 4, 2021, noon 14.9 ppb (15) 3.3 ppb (4) 16.5 ppb (16) 12.0 ppb (12) N/A 0.0 ppb (0) 18.0 ppb (17) 0.34 ppb (4) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
March 4, 2021, 11 a.m. 15.2 ppb (15) 2.4 ppb (3) 14.8 ppb (14) 13.0 ppb (13) N/A 0.0 ppb (0) 23.0 ppb (22) 0.35 ppb (4) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 22.0
 
March 4, 2021, 10 a.m. 11.1 ppb (11) 1.0 ppb (1) 10.2 ppb (10) 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.26 ppb (4) 7.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
March 4, 2021, 9 a.m. 4.1 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.19 ppb (3) 6.0 μg/m3 (6) 7.0 μg/m3 (30) 32.0
 
March 4, 2021, 8 a.m. 2.8 ppb (3) 0.4 ppb (1) 3.1 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.17 ppb (3) 7.0 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
March 4, 2021, 7 a.m. 7.1 ppb (7) 0.8 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.23 ppb (3) 21.0 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
March 4, 2021, 6 a.m. N/A N/A 22.3 ppb (22) N/A N/A N/A 6.0 ppb (6) 0.63 ppb (7) 22.0 μg/m3 (21) 19.0 μg/m3 (66) 66.0
 
March 4, 2021, 5 a.m. 30.4 ppb (29) 4.6 ppb (5) 27.2 ppb (26) 26.0 ppb (25) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
March 4, 2021, 4 a.m. 41.1 ppb (39) 9.6 ppb (10) 31.8 ppb (30) 32.0 ppb (31) N/A 0.0 ppb (0) 5.0 ppb (5) 0.65 ppb (8) 24.0 μg/m3 (23) 14.0 μg/m3 (55) 55.0
 
March 4, 2021, 3 a.m. 45.6 ppb (44) 11.1 ppb (11) 41.4 ppb (40) 35.0 ppb (34) N/A 0.0 ppb (0) 2.0 ppb (2) 0.81 ppb (10) 22.0 μg/m3 (21) 20.0 μg/m3 (68) 68.0
 
March 4, 2021, 2 a.m. 48.7 ppb (46) 15.3 ppb (15) 36.7 ppb (35) 33.0 ppb (32) N/A 0.0 ppb (0) 4.0 ppb (4) 0.77 ppb (10) 31.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
March 4, 2021, 1 a.m. 65.8 ppb (64) 28.7 ppb (28) 57.5 ppb (55) 37.0 ppb (35) N/A 0.0 ppb (0) 2.0 ppb (2) 1.09 ppb (13) 18.0 μg/m3 (17) 14.0 μg/m3 (55) 64.0
 
March 4, 2021, midnight 42.7 ppb (41) 10.2 ppb (10) 47.9 ppb (46) 33.0 ppb (32) N/A 0.0 ppb (0) 7.0 ppb (7) 0.67 ppb (8) 19.0 μg/m3 (18) 6.0 μg/m3 (25) 46.0
 
March 3, 2021, 11 p.m. 26.7 ppb (26) 5.0 ppb (5) 31.1 ppb (30) 22.0 ppb (21) N/A 0.0 ppb (0) 22.0 ppb (21) 0.58 ppb (7) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 10 p.m. 7.5 ppb (8) 1.3 ppb (2) 9.1 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (40) 0.23 ppb (3) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 40.0
 
March 3, 2021, 9 p.m. 3.4 ppb (4) 1.1 ppb (2) 4.5 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) 0.19 ppb (3) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 45.0
 
March 3, 2021, 8 p.m. 2.1 ppb (2) 0.8 ppb (1) 2.9 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.18 ppb (3) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 47.0
 
March 3, 2021, 7 p.m. 2.8 ppb (3) 1.1 ppb (2) 3.6 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) 0.19 ppb (3) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 46.0
 
March 3, 2021, 6 p.m. 3.1 ppb (3) 1.3 ppb (2) 3.8 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 5.0 μg/m3 (5) 9.0 μg/m3 (38) 43.0
 
March 3, 2021, 5 p.m. 2.9 ppb (3) 1.1 ppb (2) 3.5 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 7.0 μg/m3 (7) 7.0 μg/m3 (30) 41.0
 
March 3, 2021, 4 p.m. 3.4 ppb (4) 1.4 ppb (2) 4.2 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 38.0
 
March 3, 2021, 3 p.m. 6.3 ppb (6) 2.5 ppb (3) 7.4 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) 0.19 ppb (3) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 34.0
 
March 3, 2021, 2 p.m. N/A N/A 13.6 ppb (13) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.27 ppb (4) 20.0 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 1 p.m. 19.6 ppb (19) 7.5 ppb (8) 22.1 ppb (21) 12.0 ppb (12) N/A 0.0 ppb (0) 13.0 ppb (13) 0.33 ppb (4) 12.0 μg/m3 (12) 13.0 μg/m3 (53) 53.0
 
March 3, 2021, noon 14.9 ppb (15) 3.4 ppb (4) 17.3 ppb (17) 12.0 ppb (12) N/A 0.0 ppb (0) 9.0 ppb (9) 0.32 ppb (4) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
March 3, 2021, 11 a.m. 12.7 ppb (12) 1.3 ppb (2) 14.6 ppb (14) 11.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (9) 0.28 ppb (4) 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
March 3, 2021, 10 a.m. 12.7 ppb (12) 1.5 ppb (2) 13.6 ppb (13) 11.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (9) 0.26 ppb (4) 12.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
March 3, 2021, 9 a.m. 9.9 ppb (10) 1.8 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (10) 0.26 ppb (4) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 8 a.m. 9.4 ppb (9) 1.2 ppb (2) 10.3 ppb (10) 8.0 ppb (8) N/A 0.0 ppb (0) N/A 0.28 ppb (4) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
March 3, 2021, 7 a.m. 8.7 ppb (9) 1.6 ppb (2) 9.7 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
March 3, 2021, 6 a.m. N/A N/A 9.2 ppb (9) N/A N/A N/A 16.0 ppb (15) 0.24 ppb (3) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
March 3, 2021, 5 a.m. 10.7 ppb (11) 1.8 ppb (2) 13.3 ppb (13) 9.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (16) N/A 11.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
March 3, 2021, 4 a.m. 10.7 ppb (11) 0.8 ppb (1) 15.1 ppb (15) 10.0 ppb (10) N/A 0.0 ppb (0) 19.0 ppb (18) 0.29 ppb (4) 12.0 μg/m3 (12) 13.0 μg/m3 (53) 53.0
 
March 3, 2021, 3 a.m. 12.6 ppb (12) 1.1 ppb (2) 11.5 ppb (11) 12.0 ppb (12) N/A 0.0 ppb (0) 19.0 ppb (18) 0.33 ppb (4) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
March 3, 2021, 2 a.m. 14.9 ppb (15) 1.7 ppb (2) 14.2 ppb (14) 13.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (17) 0.32 ppb (4) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
March 3, 2021, 1 a.m. 18.6 ppb (18) 5.2 ppb (5) 15.2 ppb (15) 13.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (19) 0.42 ppb (5) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
March 3, 2021, midnight 14.3 ppb (14) 2.0 ppb (2) 14.6 ppb (14) 12.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (22) 0.34 ppb (4) 10.0 μg/m3 (10) 1.0 μg/m3 (5) 22.0
 
March 2, 2021, 11 p.m. 11.9 ppb (12) 2.3 ppb (3) 12.6 ppb (12) 10.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (26) 0.28 ppb (4) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 26.0
 
March 2, 2021, 10 p.m. 5.5 ppb (6) 1.8 ppb (2) 5.8 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.2 ppb (3) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 35.0
 
March 2, 2021, 9 p.m. 3.3 ppb (4) 1.5 ppb (2) 3.2 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) 0.17 ppb (3) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 38.0
 
March 2, 2021, 8 p.m. 2.5 ppb (3) 1.0 ppb (1) 3.3 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) 0.16 ppb (3) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 39.0
 
March 2, 2021, 7 p.m. 2.0 ppb (2) 0.8 ppb (1) 2.2 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.29 ppb (4) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 40.0
 
March 2, 2021, 6 p.m. 2.3 ppb (3) 1.2 ppb (2) 2.2 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 39.0
 
March 2, 2021, 5 p.m. 1.5 ppb (2) 0.7 ppb (1) 1.8 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.14 ppb (2) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 38.0
 
March 2, 2021, 4 p.m. 2.2 ppb (3) 1.2 ppb (2) 2.5 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 37.0
 
March 2, 2021, 3 p.m. 2.4 ppb (3) 1.1 ppb (2) 2.7 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) 7.0 μg/m3 (7) 8.0 μg/m3 (34) 36.0
 
March 2, 2021, 2 p.m. 2.9 ppb (3) 1.0 ppb (1) 3.2 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.15 ppb (2) 9.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
March 2, 2021, 1 p.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 31.0
 
March 2, 2021, noon 13.9 ppb (14) 2.0 ppb (2) 12.3 ppb (12) 12.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (23) 0.29 ppb (4) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
March 2, 2021, 11 a.m. 10.6 ppb (10) 2.0 ppb (2) 9.2 ppb (9) 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
March 2, 2021, 10 a.m. 3.1 ppb (3) 0.6 ppb (1) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.14 ppb (2) 7.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
March 2, 2021, 9 a.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.14 ppb (2) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 33.0
 
March 2, 2021, 8 a.m. 2.2 ppb (3) 0.3 ppb (1) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.14 ppb (2) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
March 2, 2021, 7 a.m. 1.9 ppb (2) 0.7 ppb (1) 1.6 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.14 ppb (2) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 34.0
 
March 2, 2021, 6 a.m. N/A N/A 2.3 ppb (3) N/A N/A N/A 34.0 ppb (32) 0.15 ppb (2) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 32.0
 
March 2, 2021, 5 a.m. 2.3 ppb (3) 0.4 ppb (1) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 32.0
 
March 2, 2021, 4 a.m. 1.5 ppb (2) 0.4 ppb (1) 1.4 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 35.0
 
March 2, 2021, 3 a.m. 1.2 ppb (2) 0.3 ppb (1) 1.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 4.0 μg/m3 (4) 8.0 μg/m3 (34) 37.0
 
March 2, 2021, 2 a.m. 1.3 ppb (2) 0.3 ppb (1) 1.3 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 37.0
 
March 2, 2021, 1 a.m. 1.5 ppb (2) 0.2 ppb (1) 1.5 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) 9.0 μg/m3 (9) 0.0 μg/m3 (0) 36.0
 
March 2, 2021, midnight 2.0 ppb (2) 0.3 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.15 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 35.0
 
March 1, 2021, 11 p.m. 2.3 ppb (3) 0.3 ppb (1) 2.4 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 34.0
 
March 1, 2021, 10 p.m. 1.9 ppb (2) 0.1 ppb (1) 2.2 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.16 ppb (3) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 35.0
 
March 1, 2021, 9 p.m. 2.7 ppb (3) 0.2 ppb (1) 2.6 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.16 ppb (3) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 30.0
 
March 1, 2021, 8 p.m. 5.1 ppb (5) 1.0 ppb (1) 4.7 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 25.0
 
March 1, 2021, 7 p.m. 5.6 ppb (6) 1.1 ppb (2) 5.2 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.18 ppb (3) N/A N/A 27.0
 
March 1, 2021, 6 p.m. 5.9 ppb (6) 1.5 ppb (2) 5.1 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.18 ppb (3) N/A N/A 27.0
 
March 1, 2021, 5 p.m. 7.4 ppb (7) 1.9 ppb (2) 7.0 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A N/A 25.0
 
March 1, 2021, 4 p.m. 10.3 ppb (10) 3.0 ppb (3) 9.6 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.22 ppb (3) 2.0 μg/m3 (2) N/A 23.0
 
March 1, 2021, 3 p.m. 6.7 ppb (7) 1.2 ppb (2) 6.4 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) 2.0 μg/m3 (2) N/A 25.0
 
March 1, 2021, 2 p.m. 3.1 ppb (3) 0.3 ppb (1) 3.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.14 ppb (2) 16.0 μg/m3 (15) N/A 27.0
 
March 1, 2021, 1 p.m. 2.9 ppb (3) 0.5 ppb (1) 2.6 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 25.0
 
March 1, 2021, noon 4.2 ppb (4) 1.3 ppb (2) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 18.0
 
March 1, 2021, 11 a.m. 3.1 ppb (3) 0.6 ppb (1) 2.9 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.15 ppb (2) 13.0 μg/m3 (13) N/A 19.0
 
March 1, 2021, 10 a.m. 2.2 ppb (3) 0.4 ppb (1) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) 0.13 ppb (2) 10.0 μg/m3 (10) -2.0 μg/m3 (0) 20.0
 
March 1, 2021, 9 a.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) 0.13 ppb (2) 13.0 μg/m3 (13) 0.0 μg/m3 (0) 22.0
 
March 1, 2021, 8 a.m. 1.4 ppb (2) 0.2 ppb (1) 1.5 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.13 ppb (2) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 11.0
 
March 1, 2021, 7 a.m. 2.4 ppb (3) 1.2 ppb (2) 1.6 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) 0.13 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
March 1, 2021, 6 a.m. N/A N/A 2.0 ppb (2) N/A N/A N/A 22.0 ppb (21) 0.13 ppb (2) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
March 1, 2021, 5 a.m. 2.0 ppb (2) 0.3 ppb (1) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) N/A 17.0 μg/m3 (16) 4.0 μg/m3 (17) 21.0
 
March 1, 2021, 4 a.m. 2.7 ppb (3) 0.4 ppb (1) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) 0.19 ppb (3) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
March 1, 2021, 3 a.m. 4.8 ppb (5) 0.7 ppb (1) 4.5 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.23 ppb (3) 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
March 1, 2021, 2 a.m. 7.0 ppb (7) 1.4 ppb (2) 5.8 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) 0.26 ppb (4) 17.0 μg/m3 (16) 13.0 μg/m3 (53) 53.0
 
March 1, 2021, 1 a.m. 13.2 ppb (13) 2.9 ppb (3) 7.8 ppb (8) 10.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (15) 0.41 ppb (5) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
March 1, 2021, midnight 22.8 ppb (22) 6.2 ppb (6) 12.8 ppb (13) 17.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) 0.74 ppb (8) 27.0 μg/m3 (25) -1.0 μg/m3 (0) 25.0
 
Feb. 28, 2021, 11 p.m. 20.5 ppb (20) 6.7 ppb (7) 11.2 ppb (11) 14.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (10) 0.57 ppb (7) 20.0 μg/m3 (19) 0.0 μg/m3 (0) 20.0
 
Feb. 28, 2021, 10 p.m. 7.3 ppb (7) 1.9 ppb (2) 6.6 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (19) 0.34 ppb (4) 21.0 μg/m3 (20) 0.0 μg/m3 (0) 20.0
 
Feb. 28, 2021, 9 p.m. 6.4 ppb (7) 2.1 ppb (2) 6.6 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.27 ppb (4) 19.0 μg/m3 (18) -3.0 μg/m3 (0) 23.0
 
Feb. 28, 2021, 8 p.m. 2.7 ppb (3) 0.9 ppb (1) 3.4 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.21 ppb (3) 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Feb. 28, 2021, 7 p.m. 3.1 ppb (3) 1.0 ppb (1) 3.7 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) 0.24 ppb (3) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Feb. 28, 2021, 6 p.m. 4.6 ppb (5) 2.1 ppb (2) 5.1 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (18) 0.25 ppb (3) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
Feb. 28, 2021, 5 p.m. 8.0 ppb (8) 4.2 ppb (4) 7.9 ppb (8) 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (13) 0.3 ppb (4) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Feb. 28, 2021, 4 p.m. 9.4 ppb (9) 4.4 ppb (5) 9.2 ppb (9) 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) 0.33 ppb (4) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Feb. 28, 2021, 3 p.m. 6.7 ppb (7) 2.9 ppb (3) 7.1 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) 0.3 ppb (4) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Feb. 28, 2021, 2 p.m. 7.2 ppb (7) 2.7 ppb (3) 7.8 ppb (8) 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (10) 0.29 ppb (4) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Feb. 28, 2021, 1 p.m. 5.0 ppb (5) 1.5 ppb (2) 5.5 ppb (6) 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (13) 0.26 ppb (4) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 28, 2021, noon 4.3 ppb (5) 0.9 ppb (1) 4.5 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (11) 0.26 ppb (4) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
Feb. 28, 2021, 11 a.m. 4.3 ppb (5) 0.6 ppb (1) 4.2 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) 0.26 ppb (4) 11.0 μg/m3 (11) 15.0 μg/m3 (58) 58.0
 
Feb. 28, 2021, 10 a.m. 8.1 ppb (8) 1.7 ppb (2) 6.4 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 6.0 ppb (6) 0.36 ppb (5) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 16.0
 
Feb. 28, 2021, 9 a.m. 9.7 ppb (10) 2.2 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 2.0 ppb (2) 0.45 ppb (6) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Feb. 28, 2021, 8 a.m. 13.7 ppb (13) 4.4 ppb (5) 10.5 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) N/A 0.51 ppb (6) 14.0 μg/m3 (13) 12.0 μg/m3 (50) 50.0
 
Feb. 28, 2021, 7 a.m. 15.4 ppb (15) 4.7 ppb (5) 13.8 ppb (14) 11.0 ppb (11) N/A 0.0 ppb (0) 2.0 ppb (2) 0.52 ppb (6) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 15.0
 
Feb. 28, 2021, 6 a.m. N/A N/A 14.4 ppb (14) N/A N/A N/A 1.0 ppb (1) 0.53 ppb (6) 29.0 μg/m3 (27) 23.0 μg/m3 (74) 74.0
 
Feb. 28, 2021, 5 a.m. 15.2 ppb (15) 4.6 ppb (5) 18.0 ppb (17) 11.0 ppb (11) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 21.0 μg/m3 (20) 18.0 μg/m3 (64) 64.0
 
Feb. 28, 2021, 4 a.m. 17.6 ppb (17) 4.5 ppb (5) 13.9 ppb (14) 13.0 ppb (13) N/A 0.0 ppb (0) 3.0 ppb (3) 0.63 ppb (7) 31.0 μg/m3 (29) 26.0 μg/m3 (81) 81.0
 
Feb. 28, 2021, 3 a.m. 17.9 ppb (17) 3.4 ppb (4) 15.8 ppb (15) 14.0 ppb (14) N/A 0.0 ppb (0) 4.0 ppb (4) 0.62 ppb (7) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Feb. 28, 2021, 2 a.m. 16.5 ppb (16) 1.9 ppb (2) 14.2 ppb (14) 15.0 ppb (15) N/A 0.0 ppb (0) 9.0 ppb (9) 0.54 ppb (6) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Feb. 28, 2021, 1 a.m. 10.4 ppb (10) 1.5 ppb (2) 10.1 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (16) 0.36 ppb (5) 9.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Feb. 28, 2021, midnight 10.5 ppb (10) 1.4 ppb (2) 10.0 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 19.0 ppb (18) 0.35 ppb (4) 10.0 μg/m3 (10) 1.0 μg/m3 (5) 18.0
 
Feb. 27, 2021, 11 p.m. 4.3 ppb (5) 0.6 ppb (1) 4.8 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.27 ppb (4) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 25.0
 
Feb. 27, 2021, 10 p.m. 2.5 ppb (3) 0.5 ppb (1) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.22 ppb (3) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 26.0
 
Feb. 27, 2021, 9 p.m. 1.9 ppb (2) 0.6 ppb (1) 2.4 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.21 ppb (3) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 26.0
 
Feb. 27, 2021, 8 p.m. 2.5 ppb (3) 1.0 ppb (1) 2.9 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.22 ppb (3) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 7 p.m. 2.1 ppb (2) 0.8 ppb (1) 2.6 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.21 ppb (3) 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Feb. 27, 2021, 6 p.m. 2.9 ppb (3) 1.1 ppb (2) 3.4 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.22 ppb (3) 7.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Feb. 27, 2021, 5 p.m. 3.7 ppb (4) 1.2 ppb (2) 3.9 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.22 ppb (3) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 4 p.m. 6.1 ppb (6) 2.4 ppb (3) 6.6 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.24 ppb (3) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 25.0
 
Feb. 27, 2021, 3 p.m. 6.8 ppb (7) 2.2 ppb (3) 7.3 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.24 ppb (3) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 25.0
 
Feb. 27, 2021, 2 p.m. 6.2 ppb (6) 1.6 ppb (2) 6.9 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (24) 0.23 ppb (3) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 24.0
 
Feb. 27, 2021, 1 p.m. 4.3 ppb (5) 0.9 ppb (1) 4.4 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.21 ppb (3) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 25.0
 
Feb. 27, 2021, noon 2.6 ppb (3) 0.4 ppb (1) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.19 ppb (3) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 27.0
 
Feb. 27, 2021, 11 a.m. 1.9 ppb (2) 0.3 ppb (1) 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 28.0
 
Feb. 27, 2021, 10 a.m. 1.9 ppb (2) 0.3 ppb (1) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.18 ppb (3) 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 9 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 28.0
 
Feb. 27, 2021, 8 a.m. 2.7 ppb (3) 0.4 ppb (1) 2.6 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.18 ppb (3) 1.0 μg/m3 (1) 3.0 μg/m3 (13) 13.0
 
Feb. 27, 2021, 7 a.m. 3.0 ppb (3) 0.9 ppb (1) 2.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.18 ppb (3) 0.0 μg/m3 (0) 3.0 μg/m3 (13) 29.0