ID: 481

AQSQID: 250154002

Site Name: Ware

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

Updated: May 14, 2021, 10:46 p.m.

Location: Ware (Enfield), MA

Reporting: True, Located: True

Current AQI: 42.0

Ware (Enfield) MA, US: 42.298302, -72.334396

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 14, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 3.0 μg/m3 (13) 42.0
 
May 14, 2021, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
May 14, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 8.0 μg/m3 (34) 40.0
 
May 14, 2021, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.7 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 4.0 μg/m3 (17) 40.0
 
May 14, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
May 14, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
May 14, 2021, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.5 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
May 14, 2021, 1 p.m. 3.0 ppb (3) 0.0 ppb (0) 3.3 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
May 14, 2021, noon 4.0 ppb (4) 0.0 ppb (0) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
May 14, 2021, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) 4.6 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
May 14, 2021, 10 a.m. 8.0 ppb (8) 0.0 ppb (0) 8.5 ppb (9) 7.0 ppb (7) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 7.0 μg/m3 (30) 30.0
 
May 14, 2021, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) 4.4 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
May 14, 2021, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.6 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 14, 2021, 7 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 4.0 μg/m3 (17) 43.0
 
May 14, 2021, 6 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 5.0 μg/m3 (21) 42.0
 
May 14, 2021, 5 a.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
May 14, 2021, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A N/A 46.0 ppb (43) N/A N/A 4.0 μg/m3 (17) 43.0
 
May 14, 2021, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
May 14, 2021, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 4.0 μg/m3 (17) 41.0
 
May 14, 2021, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
May 14, 2021, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 4.0 μg/m3 (17) 41.0
 
May 13, 2021, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
May 13, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
May 13, 2021, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
May 13, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
May 13, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 7.0 μg/m3 (30) 40.0
 
May 13, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 7.0 μg/m3 (30) 39.0
 
May 13, 2021, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 7.0 μg/m3 (30) 39.0
 
May 13, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
May 13, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 0.0 μg/m3 (0) 35.0
 
May 13, 2021, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 3.0 μg/m3 (13) 33.0
 
May 13, 2021, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 6.0 μg/m3 (25) 30.0
 
May 13, 2021, noon 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
May 13, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
May 13, 2021, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 1.0 μg/m3 (5) 27.0
 
May 13, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
May 13, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
May 13, 2021, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
May 13, 2021, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.4 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
May 13, 2021, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
May 13, 2021, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
May 13, 2021, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 3.0 μg/m3 (13) 34.0
 
May 13, 2021, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.4 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
May 13, 2021, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
May 13, 2021, midnight 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
May 12, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.4 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 3.0 μg/m3 (13) 39.0
 
May 12, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
May 12, 2021, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 3.0 μg/m3 (13) 39.0
 
May 12, 2021, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
May 12, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 3.0 μg/m3 (13) 36.0
 
May 12, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
May 12, 2021, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
May 12, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
May 12, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
May 12, 2021, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.7 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 12.0 μg/m3 (50) 50.0
 
May 12, 2021, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 16.0 μg/m3 (60) 60.0
 
May 12, 2021, noon 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
May 12, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A -1.0 μg/m3 (0) 22.0
 
May 12, 2021, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A -3.0 μg/m3 (0) 23.0
 
May 12, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A -3.0 μg/m3 (0) 25.0
 
May 12, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A -3.0 μg/m3 (0) 25.0
 
May 12, 2021, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A -1.0 μg/m3 (0) 26.0
 
May 12, 2021, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A -1.0 μg/m3 (0) 27.0
 
May 12, 2021, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A -3.0 μg/m3 (0) 28.0
 
May 12, 2021, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 1.0 μg/m3 (5) 29.0
 
May 12, 2021, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
May 12, 2021, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.0 μg/m3 (9) 31.0
 
May 12, 2021, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
May 12, 2021, midnight 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
May 11, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
May 11, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
May 11, 2021, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 4.0 μg/m3 (17) 36.0
 
May 11, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A -1.0 μg/m3 (0) 35.0
 
May 11, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A -1.0 μg/m3 (0) 35.0
 
May 11, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 0.0 μg/m3 (0) 36.0
 
May 11, 2021, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
May 11, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
May 11, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 3.0 μg/m3 (13) 33.0
 
May 11, 2021, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.0 μg/m3 (9) 31.0
 
May 11, 2021, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
May 11, 2021, noon 1.0 ppb (1) 0.0 ppb (0) 1.3 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
May 11, 2021, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
May 11, 2021, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
May 11, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
May 11, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 11, 2021, 7 a.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 4.0 μg/m3 (17) 37.0
 
May 11, 2021, 6 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
May 11, 2021, 5 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 2.0 μg/m3 (9) 34.0
 
May 11, 2021, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (2) 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A N/A 3.0 μg/m3 (13) 34.0
 
May 11, 2021, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.5 ppb (2) 1.0 ppb (1) N/A N/A 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
May 11, 2021, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.6 ppb (2) 1.0 ppb (1) N/A N/A 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
May 11, 2021, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.9 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
May 11, 2021, midnight 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
May 10, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 1.0 μg/m3 (5) 34.0
 
May 10, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
May 10, 2021, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
May 10, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
May 10, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
May 10, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
May 10, 2021, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
May 10, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 2.0 μg/m3 (9) 37.0
 
May 10, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 0.0 μg/m3 (0) 37.0
 
May 10, 2021, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 1.0 μg/m3 (5) 37.0
 
May 10, 2021, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 1.0 μg/m3 (5) 34.0
 
May 10, 2021, noon 1.0 ppb (1) 0.0 ppb (0) 1.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 3.0 μg/m3 (13) 34.0
 
May 10, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.5 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
May 10, 2021, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.6 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
May 10, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.6 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
May 10, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.5 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
May 10, 2021, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
May 10, 2021, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.3 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
May 10, 2021, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.5 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
May 10, 2021, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
May 10, 2021, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.5 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 6.0 μg/m3 (25) 37.0
 
May 10, 2021, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.3 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
May 10, 2021, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.5 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 3.0 μg/m3 (13) 39.0
 
May 10, 2021, midnight 1.0 ppb (1) 0.0 ppb (0) 1.6 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 3.0 μg/m3 (13) 40.0
 
May 9, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 4.0 μg/m3 (17) 42.0
 
May 9, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 4.0 μg/m3 (17) 39.0
 
May 9, 2021, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
May 9, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
May 9, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
May 9, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
May 9, 2021, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
May 9, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
May 9, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
May 9, 2021, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
May 9, 2021, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 7.0 μg/m3 (30) 31.0
 
May 9, 2021, noon 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
May 9, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 1.0 μg/m3 (5) 24.0
 
May 9, 2021, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
May 9, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
May 9, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 2.0 μg/m3 (9) 26.0
 
May 9, 2021, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
May 9, 2021, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 3.0 μg/m3 (13) 28.0
 
May 9, 2021, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
May 9, 2021, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
May 9, 2021, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
May 9, 2021, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.9 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 1.0 μg/m3 (5) 31.0
 
May 9, 2021, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
May 9, 2021, midnight 1.0 ppb (1) 0.0 ppb (0) 1.0 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
May 8, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.8 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 3.0 μg/m3 (13) 33.0
 
May 8, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 3.0 μg/m3 (13) 34.0
 
May 8, 2021, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 2.0 μg/m3 (9) 34.0
 
May 8, 2021, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
May 8, 2021, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
May 8, 2021, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 3.0 μg/m3 (13) 34.0
 
May 8, 2021, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
May 8, 2021, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
May 8, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.6 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.0 μg/m3 (5) 32.0
 
May 8, 2021, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) 0.7 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
May 8, 2021, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) 1.1 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 4.0 μg/m3 (17) 29.0
 
May 8, 2021, noon 1.0 ppb (1) 0.0 ppb (0) 1.3 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
May 8, 2021, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 8, 2021, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.2 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
May 8, 2021, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
May 8, 2021, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (2) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 8, 2021, 7 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
May 8, 2021, 6 a.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
May 8, 2021, 5 a.m. N/A N/A 2.8 ppb (3) N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 2.0 μg/m3 (9) 29.0
 
May 8, 2021, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) 3.1 ppb (3) 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A N/A 3.0 μg/m3 (13) 29.0
 
May 8, 2021, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) 2.9 ppb (3) 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
May 8, 2021, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) 2.9 ppb (3) 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
May 8, 2021, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) 2.7 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
May 8, 2021, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
May 7, 2021, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
May 7, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 3.0 μg/m3 (13) 37.0
 
May 7, 2021, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) 2.4 ppb (3) 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 4.0 μg/m3 (17) 37.0