ID: 1326

AQSQID: 361030009

Site Name: Holtsville

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

Updated: May 25, 2022, 6:36 a.m.

Location: Holtsville (Concord Dr), NY

Reporting: True, Located: True

Current AQI: 14.0

Holtsville (Concord Dr) NY, US: 40.8278, -73.0575

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 25, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 1.6 μg/m3 (7) 14.0
 
May 25, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 1.2 μg/m3 (5) 18.0
 
May 25, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 1.5 μg/m3 (7) 23.0
 
May 25, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 2.9 μg/m3 (13) 24.0
 
May 25, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 5.1 μg/m3 (22) 26.0
 
May 25, 2022, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 3.2 μg/m3 (14) 26.0
 
May 24, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 5.1 μg/m3 (22) 26.0
 
May 24, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A -0.6 μg/m3 (0) 28.0
 
May 24, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A -0.6 μg/m3 (0) 30.0
 
May 24, 2022, 7 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 24, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.1 μg/m3 (5) 31.0
 
May 24, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 0.3 μg/m3 (2) 31.0
 
May 24, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.3 μg/m3 (2) 28.0
 
May 24, 2022, 3 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 24, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.3 μg/m3 (2) 26.0
 
May 24, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 0.2 μg/m3 (1) 24.0
 
May 24, 2022, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
May 24, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 1.7 μg/m3 (8) 23.0
 
May 24, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.6 μg/m3 (11) 21.0
 
May 24, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 0.3 μg/m3 (2) 22.0
 
May 24, 2022, 6 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 24, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.3 μg/m3 (6) 26.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.3 μg/m3 (6) 26.0
 
May 24, 2022, 4 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 24, 2022, 4 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 24, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.5 μg/m3 (11) 32.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.5 μg/m3 (11) 32.0
 
May 24, 2022, 2 a.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 24, 2022, 2 a.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 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.4 μg/m3 (19) 38.0
 
May 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.4 μg/m3 (19) 38.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.3 μg/m3 (18) 37.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.3 μg/m3 (18) 37.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 2.7 μg/m3 (12) 40.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 2.7 μg/m3 (12) 40.0
 
May 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.2 μg/m3 (1) 42.0
 
May 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A -1.3 μg/m3 (0) 39.0
 
May 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A -2.1 μg/m3 (0) 38.0
 
May 23, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A -0.2 μg/m3 (0) 32.0
 
May 23, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A -0.5 μg/m3 (0) 30.0
 
May 23, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A -1.5 μg/m3 (0) 25.0
 
May 23, 2022, 10 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 23, 2022, 10 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 23, 2022, 9 a.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 (0) 28.0
 
May 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.2 μg/m3 (22) 36.0
 
May 23, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 13.3 μg/m3 (54) 54.0
 
May 23, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 11.7 μg/m3 (49) 49.0
 
May 23, 2022, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 9.8 μg/m3 (41) 41.0
 
May 22, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 7.6 μg/m3 (32) 35.0
 
May 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.9 μg/m3 (29) 42.0
 
May 22, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 4.3 μg/m3 (18) 43.0
 
May 22, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 8.3 μg/m3 (35) 48.0
 
May 22, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 10.8 μg/m3 (46) 51.0
 
May 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 10.8 μg/m3 (46) 50.0
 
May 22, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 12.0 μg/m3 (50) 51.0
 
May 22, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 12.4 μg/m3 (52) 52.0
 
May 22, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 17.5 μg/m3 (63) 63.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 14.2 μg/m3 (56) 56.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 14.2 μg/m3 (56) 56.0
 
May 22, 2022, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 11.6 μg/m3 (49) 49.0
 
May 22, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 11.3 μg/m3 (48) 48.0
 
May 22, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 14.2 μg/m3 (56) 56.0
 
May 22, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 13.3 μg/m3 (54) 54.0
 
May 22, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 12.1 μg/m3 (51) 51.0
 
May 22, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 13.0 μg/m3 (53) 53.0
 
May 22, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 14.2 μg/m3 (56) 56.0
 
May 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 16.5 μg/m3 (61) 61.0
 
May 22, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 20.4 μg/m3 (69) 69.0
 
May 22, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 20.7 μg/m3 (70) 70.0
 
May 22, 2022, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 16.1 μg/m3 (60) 60.0
 
May 21, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 16.8 μg/m3 (61) 61.0
 
May 21, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 15.4 μg/m3 (58) 65.0
 
May 21, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 15.1 μg/m3 (58) 94.0
 
May 21, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 12.6 μg/m3 (53) 94.0
 
May 21, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 17.1 μg/m3 (62) 87.0
 
May 21, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 13.4 μg/m3 (54) 54.0
 
May 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 10.4 μg/m3 (44) 50.0
 
May 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 14.1 μg/m3 (56) 56.0
 
May 21, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 12.5 μg/m3 (52) 52.0
 
May 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 10.1 μg/m3 (43) 43.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.8 μg/m3 (29) 29.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.8 μg/m3 (29) 29.0
 
May 21, 2022, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 8.1 μg/m3 (34) 34.0
 
May 21, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 7.8 μg/m3 (33) 33.0
 
May 21, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 7.4 μg/m3 (31) 31.0
 
May 21, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 6.3 μg/m3 (27) 29.0
 
May 21, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.8 μg/m3 (16) 38.0
 
May 21, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.1 μg/m3 (18) 39.0
 
May 21, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 5.1 μg/m3 (22) 39.0
 
May 21, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 7.0 μg/m3 (30) 40.0
 
May 21, 2022, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 7.5 μg/m3 (32) 39.0
 
May 20, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 6.3 μg/m3 (27) 36.0
 
May 20, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 10.7 μg/m3 (45) 45.0
 
May 20, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.9 μg/m3 (42) 42.0
 
May 20, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 9.3 μg/m3 (39) 49.0
 
May 20, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 6.5 μg/m3 (28) 43.0
 
May 20, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.4 μg/m3 (27) 42.0
 
May 20, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 8.7 μg/m3 (37) 45.0
 
May 20, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 6.5 μg/m3 (28) 41.0
 
May 20, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 8.2 μg/m3 (35) 37.0
 
May 20, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 6.4 μg/m3 (27) 34.0
 
May 20, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 7.4 μg/m3 (31) 31.0
 
May 20, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 7.8 μg/m3 (33) 33.0
 
May 20, 2022, 9 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 20, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.9 μg/m3 (13) 13.0
 
May 20, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 0.9 μg/m3 (4) 8.0
 
May 20, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 2.3 μg/m3 (10) 10.0
 
May 20, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 2.4 μg/m3 (10) 24.0
 
May 20, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.8 μg/m3 (8) 33.0
 
May 20, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.6 μg/m3 (16) 30.0
 
May 20, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.8 μg/m3 (16) 30.0
 
May 20, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.4 μg/m3 (23) 33.0
 
May 20, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.4 μg/m3 (23) 33.0
 
May 20, 2022, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 5.6 μg/m3 (24) 28.0
 
May 20, 2022, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 5.6 μg/m3 (24) 28.0
 
May 19, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
May 19, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.8 μg/m3 (20) 37.0
 
May 19, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 3.3 μg/m3 (14) 43.0
 
May 19, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.5 μg/m3 (11) 38.0
 
May 19, 2022, 7 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 (9) 36.0
 
May 19, 2022, 7 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 (9) 36.0
 
May 19, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 0.5 μg/m3 (3) 36.0
 
May 19, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.0 μg/m3 (5) 37.0
 
May 19, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 3.8 μg/m3 (16) 20.0
 
May 19, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.8 μg/m3 (12) 25.0
 
May 19, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
May 19, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.1 μg/m3 (18) 29.0
 
May 19, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.5 μg/m3 (15) 31.0
 
May 19, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.3 μg/m3 (18) 33.0
 
May 18, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.8 μg/m3 (12) 37.0
 
May 18, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 4.9 μg/m3 (21) 44.0
 
May 18, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 3.9 μg/m3 (17) 50.0
 
May 18, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 3.0 μg/m3 (13) 49.0
 
May 18, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 1.4 μg/m3 (6) 48.0
 
May 18, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 0.5 μg/m3 (3) 45.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.2 μg/m3 (1) 42.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.2 μg/m3 (1) 42.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.1 μg/m3 (1) 38.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.1 μg/m3 (1) 38.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.5 μg/m3 (7) 31.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.5 μg/m3 (7) 31.0
 
May 18, 2022, 1 p.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 18, 2022, 1 p.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 18, 2022, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 1.3 μg/m3 (6) 20.0
 
May 18, 2022, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 1.3 μg/m3 (6) 20.0
 
May 18, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 3.6 μg/m3 (16) 17.0
 
May 18, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 2.9 μg/m3 (13) 17.0
 
May 18, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
May 18, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
May 18, 2022, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.5 μg/m3 (15) 30.0
 
May 17, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.8 μg/m3 (12) 35.0
 
May 17, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.3 μg/m3 (10) 39.0
 
May 17, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 3.8 μg/m3 (16) 43.0
 
May 17, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 3.8 μg/m3 (16) 43.0
 
May 17, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 3.6 μg/m3 (16) 45.0
 
May 17, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 2.0 μg/m3 (9) 47.0
 
May 17, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 2.0 μg/m3 (9) 47.0
 
May 17, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 2.0 μg/m3 (9) 49.0
 
May 17, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 2.0 μg/m3 (9) 49.0
 
May 17, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 2.1 μg/m3 (9) 50.0
 
May 17, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 2.1 μg/m3 (9) 50.0
 
May 17, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 3.7 μg/m3 (16) 46.0
 
May 17, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 3.7 μg/m3 (16) 46.0
 
May 17, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.5 μg/m3 (15) 41.0
 
May 17, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.5 μg/m3 (15) 41.0
 
May 17, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.3 μg/m3 (18) 33.0
 
May 17, 2022, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
May 17, 2022, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0