ID: 610

AQSQID: 361192004

Site Name: White Plains

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

Updated: May 13, 2021, 12:45 p.m.

Location: W Harrison (Hall Ave), NY

Reporting: True, Located: True

Current AQI: 13.0

W Harrison (Hall Ave) NY, US: 41.0522, -73.7642

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 2.9 μg/m3 (13) 13.0
 
May 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 4.1 μg/m3 (18) 18.0
 
May 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 4.0 μg/m3 (17) 17.0
 
May 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 3.3 μg/m3 (14) 14.0
 
May 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 1.5 μg/m3 (7) 13.0
 
May 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.9 μg/m3 (8) 19.0
 
May 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
May 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
May 13, 2021, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.7 μg/m3 (8) 31.0
 
May 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 1.6 μg/m3 (7) 36.0
 
May 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.6 μg/m3 (7) 37.0
 
May 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 1.2 μg/m3 (5) 36.0
 
May 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.3 μg/m3 (2) 37.0
 
May 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 0.0 μg/m3 (0) 36.0
 
May 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 0.3 μg/m3 (2) 35.0
 
May 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -0.1 μg/m3 (0) 33.0
 
May 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 0.0 μg/m3 (0) 31.0
 
May 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.0 μg/m3 (0) 28.0
 
May 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
May 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 0.8 μg/m3 (4) 25.0
 
May 12, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 1.2 μg/m3 (5) 24.0
 
May 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 1.2 μg/m3 (5) 24.0
 
May 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
May 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
May 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A -0.2 μg/m3 (0) 25.0
 
May 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.8 μg/m3 (4) 4.0
 
May 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.4 μg/m3 (2) 26.0
 
May 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.7 μg/m3 (3) 28.0
 
May 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 1.2 μg/m3 (5) 30.0
 
May 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 2.0 μg/m3 (9) 29.0
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 0.4 μg/m3 (2) 31.0
 
May 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.7 μg/m3 (16) 32.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.6 μg/m3 (16) 35.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.3 μg/m3 (10) 38.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.1 μg/m3 (9) 39.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.6 μg/m3 (11) 41.0
 
May 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.6 μg/m3 (11) 39.0
 
May 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.8 μg/m3 (4) 41.0
 
May 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.9 μg/m3 (4) 41.0
 
May 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -0.6 μg/m3 (0) 41.0
 
May 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -0.5 μg/m3 (0) 39.0
 
May 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
May 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.4 μg/m3 (2) 37.0
 
May 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.1 μg/m3 (9) 35.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 1.5 μg/m3 (7) 32.0
 
May 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.2 μg/m3 (10) 25.0
 
May 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 2.5 μg/m3 (11) 24.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.7 μg/m3 (8) 11.0
 
May 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.7 μg/m3 (8) 8.0
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.9 μg/m3 (8) 8.0
 
May 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.9 μg/m3 (8) 8.0
 
May 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 0.8 μg/m3 (4) 8.0
 
May 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 0.5 μg/m3 (3) 13.0
 
May 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 0.9 μg/m3 (4) 17.0
 
May 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 1.7 μg/m3 (8) 21.0
 
May 11, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 1.7 μg/m3 (8) 27.0
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.2 μg/m3 (10) 31.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
May 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 0.6 μg/m3 (3) 33.0
 
May 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 0.4 μg/m3 (2) 32.0
 
May 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 0.2 μg/m3 (1) 35.0
 
May 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 0.9 μg/m3 (4) 35.0
 
May 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 0.0 μg/m3 (0) 35.0
 
May 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -0.1 μg/m3 (0) 35.0
 
May 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 0.6 μg/m3 (3) 34.0
 
May 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.4 μg/m3 (6) 33.0
 
May 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.8 μg/m3 (4) 28.0
 
May 10, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 1.6 μg/m3 (7) 30.0
 
May 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
May 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 1.8 μg/m3 (8) 30.0
 
May 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 1.9 μg/m3 (8) 35.0
 
May 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.5 μg/m3 (7) 37.0
 
May 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.6 μg/m3 (3) 3.0
 
May 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -1.1 μg/m3 (0) 37.0
 
May 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.8 μg/m3 (0) 37.0
 
May 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.3 μg/m3 (0) 35.0
 
May 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A -1.2 μg/m3 (0) 34.0
 
May 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 0.0 μg/m3 (0) 31.0
 
May 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 2.5 μg/m3 (11) 28.0
 
May 10, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.7 μg/m3 (12) 25.0
 
May 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.8 μg/m3 (12) 26.0
 
May 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.3 μg/m3 (18) 30.0
 
May 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 1.9 μg/m3 (8) 38.0
 
May 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.2 μg/m3 (5) 39.0
 
May 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 5.9 μg/m3 (25) 41.0
 
May 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 2.0 μg/m3 (9) 43.0
 
May 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.2 μg/m3 (5) 41.0
 
May 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -0.5 μg/m3 (0) 38.0
 
May 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 1.2 μg/m3 (5) 36.0
 
May 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.6 μg/m3 (7) 33.0
 
May 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 2.4 μg/m3 (10) 29.0
 
May 9, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
May 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 3.1 μg/m3 (13) 20.0
 
May 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 2.7 μg/m3 (12) 12.0
 
May 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 2.0 μg/m3 (9) 9.0
 
May 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 1.1 μg/m3 (5) 8.0
 
May 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 1.2 μg/m3 (5) 10.0
 
May 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 0.4 μg/m3 (2) 10.0
 
May 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 0.5 μg/m3 (3) 13.0
 
May 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 0.8 μg/m3 (4) 11.0
 
May 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 4.4 μg/m3 (19) 19.0
 
May 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 3.2 μg/m3 (14) 14.0
 
May 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 3.5 μg/m3 (15) 15.0
 
May 9, 2021, midnight N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 3.3 μg/m3 (14) 16.0
 
May 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 2.9 μg/m3 (13) 25.0
 
May 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.9 μg/m3 (8) 26.0
 
May 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.2 μg/m3 (10) 30.0
 
May 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
May 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 0.9 μg/m3 (4) 36.0
 
May 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.1 μg/m3 (5) 37.0
 
May 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.8 μg/m3 (4) 38.0
 
May 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -0.6 μg/m3 (0) 35.0
 
May 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A -0.1 μg/m3 (0) 28.0
 
May 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
May 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 1.6 μg/m3 (7) 24.0
 
May 8, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 2.7 μg/m3 (12) 18.0
 
May 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 1.8 μg/m3 (8) 16.0
 
May 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 0.7 μg/m3 (3) 18.0
 
May 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 0.1 μg/m3 (1) 22.0
 
May 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
May 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A -0.1 μg/m3 (0) 22.0
 
May 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A -0.5 μg/m3 (0) 25.0
 
May 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.2 μg/m3 (1) 28.0
 
May 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 0.0 μg/m3 (0) 30.0
 
May 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 1.7 μg/m3 (8) 34.0
 
May 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
May 8, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.4 μg/m3 (6) 39.0
 
May 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 2.2 μg/m3 (10) 43.0
 
May 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.8 μg/m3 (12) 39.0
 
May 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.9 μg/m3 (13) 41.0
 
May 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 2.2 μg/m3 (10) 44.0
 
May 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 1.9 μg/m3 (8) 42.0
 
May 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.8 μg/m3 (4) 42.0
 
May 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A -0.6 μg/m3 (0) 41.0
 
May 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A -0.8 μg/m3 (0) 40.0
 
May 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 6.6 μg/m3 (28) 38.0
 
May 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.3 μg/m3 (2) 2.0
 
May 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -3.8 μg/m3 (0) 0.0
May 7, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A -3.6 μg/m3 (0) 0.0
May 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 1.9 μg/m3 (8) 8.0
 
May 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 0.8 μg/m3 (4) 10.0
 
May 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 1.1 μg/m3 (5) 13.0
 
May 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 0.1 μg/m3 (1) 18.0
 
May 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 0.0 μg/m3 (0) 23.0
 
May 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A -0.7 μg/m3 (0) 23.0
 
May 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
May 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.0 μg/m3 (0) 28.0
 
May 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 0.5 μg/m3 (3) 33.0
 
May 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 1.1 μg/m3 (5) 29.0
 
May 7, 2021, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 1.7 μg/m3 (8) 32.0
 
May 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 0.6 μg/m3 (3) 35.0
 
May 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.6 μg/m3 (3) 37.0
 
May 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.7 μg/m3 (0) 37.0
 
May 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.0 μg/m3 (0) 37.0
 
May 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -0.7 μg/m3 (0) 36.0
 
May 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A -1.5 μg/m3 (0) 35.0
 
May 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -2.2 μg/m3 (0) 36.0
 
May 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -2.1 μg/m3 (0) 36.0
 
May 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A -1.0 μg/m3 (0) 34.0
 
May 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -0.6 μg/m3 (0) 31.0
 
May 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A -1.2 μg/m3 (0) 29.0
 
May 6, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A -0.5 μg/m3 (0) 26.0
 
May 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 0.1 μg/m3 (1) 25.0
 
May 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 0.9 μg/m3 (4) 22.0