ID: 372

AQSQID: 180890022

Site Name: Gary-Iitri

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

Updated: Sept. 18, 2021, 6:58 p.m.

Location: Gary (Marquette Park/Miller), IN

Reporting: True, Located: True

Current AQI: 47.0

Gary (Marquette Park/Miller) IN, US: 41.6067, -87.3047

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 18, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 25.0 μg/m3 (24) N/A 47.0
 
Sept. 18, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 26.0 μg/m3 (25) 11.7 μg/m3 (49) 49.0
 
Sept. 18, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 24.0 μg/m3 (23) 10.9 μg/m3 (46) 46.0
 
Sept. 18, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 46.0 ppb (43) N/A 23.0 μg/m3 (22) 11.4 μg/m3 (48) 48.0
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 21.0 μg/m3 (20) 10.7 μg/m3 (45) 45.0
 
Sept. 18, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 20.0 μg/m3 (19) 6.7 μg/m3 (28) 42.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A 13.0 μg/m3 (13) 1.8 μg/m3 (8) 38.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A 11.0 μg/m3 (11) 3.6 μg/m3 (16) 38.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 8.0 μg/m3 (8) 3.4 μg/m3 (15) 37.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 4.0 μg/m3 (4) 4.3 μg/m3 (18) 37.0
 
Sept. 18, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 7.0 μg/m3 (7) 5.5 μg/m3 (23) 37.0
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) N/A 12.0 μg/m3 (12) 6.2 μg/m3 (26) 38.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 43.0 ppb (40) N/A 41.0 μg/m3 (38) 5.8 μg/m3 (25) 40.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 30.0 μg/m3 (28) 7.1 μg/m3 (30) 48.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 46.0 ppb (43) N/A 25.0 μg/m3 (24) 9.3 μg/m3 (39) 43.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 44.0 ppb (41) N/A 46.0 μg/m3 (43) 9.5 μg/m3 (40) 43.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A 48.0 ppb (46) N/A 1.0 ppb (2) 3.0 ppb (3) N/A 47.0 μg/m3 (44) 12.4 μg/m3 (52) 52.0
 
Sept. 18, 2021, midnight N/A N/A N/A 39.0 ppb (37) N/A 1.0 ppb (2) 15.0 ppb (14) N/A 30.0 μg/m3 (28) 7.1 μg/m3 (30) 37.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 27.0 μg/m3 (25) N/A 34.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 21.0 μg/m3 (20) 6.1 μg/m3 (26) 50.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 53.0 ppb (50) N/A 20.0 μg/m3 (19) 8.0 μg/m3 (34) 50.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) N/A 19.0 μg/m3 (18) 7.3 μg/m3 (31) 50.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 23.0 μg/m3 (22) 8.2 μg/m3 (35) 48.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 53.0 ppb (50) N/A 56.0 μg/m3 (52) 11.5 μg/m3 (48) 52.0
 
Sept. 17, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 53.0 ppb (50) N/A 17.0 μg/m3 (16) 6.5 μg/m3 (28) 50.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 46.0 ppb (43) N/A 23.0 μg/m3 (22) 8.6 μg/m3 (36) 43.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 29.0 μg/m3 (27) 10.6 μg/m3 (45) 45.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 37.0 μg/m3 (35) 13.1 μg/m3 (54) 54.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 16.0 ppb (15) N/A 36.0 μg/m3 (34) 11.2 μg/m3 (47) 47.0
 
Sept. 17, 2021, noon N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 29.0 μg/m3 (27) 12.7 μg/m3 (53) 53.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 26.0 μg/m3 (25) 10.4 μg/m3 (44) 44.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 22.0 μg/m3 (21) 9.5 μg/m3 (40) 40.0
 
Sept. 17, 2021, 9 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 20.0 μg/m3 (19) 6.7 μg/m3 (28) 28.0
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 19.0 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
Sept. 17, 2021, 7 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 17.0 ppb (16) N/A 19.0 μg/m3 (18) 7.8 μg/m3 (33) 33.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 14.0 ppb (13) N/A 18.0 μg/m3 (17) 4.4 μg/m3 (19) 19.0
 
Sept. 17, 2021, 5 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 18.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 15.0 μg/m3 (14) 7.3 μg/m3 (31) 31.0
 
Sept. 17, 2021, 3 a.m. N/A N/A N/A 31.0 ppb (30) N/A 1.0 ppb (2) 10.0 ppb (10) N/A 22.0 μg/m3 (21) 7.5 μg/m3 (32) 32.0
 
Sept. 17, 2021, 2 a.m. N/A N/A N/A 41.0 ppb (39) N/A 1.0 ppb (2) 3.0 ppb (3) N/A 23.0 μg/m3 (22) 10.9 μg/m3 (46) 46.0
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A 28.0 ppb (27) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 19.0 μg/m3 (18) 7.9 μg/m3 (33) 33.0
 
Sept. 17, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 44.0 ppb (41) N/A 25.0 μg/m3 (24) 7.2 μg/m3 (31) 41.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 55.0 ppb (51) N/A 20.0 μg/m3 (19) N/A 51.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 56.0 ppb (55) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (23) 55.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 59.0 ppb (65) N/A 19.0 μg/m3 (18) 3.0 μg/m3 (13) 65.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 53.0 ppb (50) N/A 18.0 μg/m3 (17) 4.2 μg/m3 (18) 50.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 12.0 μg/m3 (12) 3.0 μg/m3 (13) 49.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 13.0 μg/m3 (13) 2.1 μg/m3 (9) 49.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 14.0 μg/m3 (13) 0.4 μg/m3 (2) 46.0
 
Sept. 16, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 11.0 μg/m3 (11) 3.1 μg/m3 (13) 44.0
 
Sept. 16, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 18.0 μg/m3 (17) 5.8 μg/m3 (25) 36.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 37.0 μg/m3 (35) 6.4 μg/m3 (27) 35.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 22.0 μg/m3 (21) 8.1 μg/m3 (34) 34.0
 
Sept. 16, 2021, noon N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 5.0 ppb (5) N/A 25.0 μg/m3 (24) 6.5 μg/m3 (28) 28.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A 24.0 ppb (23) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 20.0 μg/m3 (19) 7.2 μg/m3 (31) 31.0
 
Sept. 16, 2021, 10 a.m. N/A N/A N/A 24.0 ppb (23) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 21.0 μg/m3 (20) 6.4 μg/m3 (27) 27.0
 
Sept. 16, 2021, 9 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 17.0 μg/m3 (16) 5.6 μg/m3 (24) 24.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A 25.0 ppb (24) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (19) 24.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A 26.0 ppb (25) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 16.0 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A 31.0 ppb (30) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 19.0 μg/m3 (18) 7.3 μg/m3 (31) 31.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A 33.0 ppb (32) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 24.0 μg/m3 (23) 8.4 μg/m3 (36) 36.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A 35.0 ppb (34) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 22.0 μg/m3 (21) 11.4 μg/m3 (48) 48.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A 36.0 ppb (34) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 22.0 μg/m3 (21) 7.8 μg/m3 (33) 34.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A 32.0 ppb (31) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 26.0 μg/m3 (25) 8.2 μg/m3 (35) 35.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 12.0 μg/m3 (12) 5.4 μg/m3 (23) 25.0
 
Sept. 16, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 11.0 μg/m3 (11) 5.6 μg/m3 (24) 29.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 9.0 μg/m3 (9) N/A 33.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 11.0 μg/m3 (11) 0.8 μg/m3 (4) 34.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) N/A 9.0 μg/m3 (9) 2.9 μg/m3 (13) 35.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 12.0 μg/m3 (12) 4.3 μg/m3 (18) 37.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 38.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) N/A 21.0 μg/m3 (20) 6.3 μg/m3 (27) 38.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A 23.0 μg/m3 (22) 2.9 μg/m3 (13) 38.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 22.0 μg/m3 (21) 3.2 μg/m3 (14) 33.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 26.0 μg/m3 (25) 4.7 μg/m3 (20) 30.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 28.0 μg/m3 (26) 6.1 μg/m3 (26) 27.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 32.0 μg/m3 (30) 6.8 μg/m3 (29) 30.0
 
Sept. 15, 2021, noon N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 26.0 μg/m3 (25) 1.4 μg/m3 (6) 25.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 25.0 ppb (24) N/A 23.0 μg/m3 (22) 1.2 μg/m3 (5) 24.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 15.0 μg/m3 (14) 0.8 μg/m3 (4) 26.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 19.0 μg/m3 (18) 1.8 μg/m3 (8) 26.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 27.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 20.0 μg/m3 (19) 3.0 μg/m3 (13) 27.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 12.0 μg/m3 (12) 1.1 μg/m3 (5) 29.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 9.0 μg/m3 (9) 1.0 μg/m3 (5) 31.0
 
Sept. 15, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 7.0 μg/m3 (7) 0.7 μg/m3 (3) 32.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 33.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 12.0 μg/m3 (12) 3.8 μg/m3 (16) 32.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 27.0 μg/m3 (25) 6.5 μg/m3 (28) 33.0
 
Sept. 15, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A 12.0 μg/m3 (12) 7.8 μg/m3 (33) 38.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A 14.0 ppb (14) N/A 3.0 ppb (5) 36.0 ppb (34) N/A 115.0 μg/m3 (81) N/A 81.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 54.0 μg/m3 (50) 16.1 μg/m3 (60) 60.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 43.0 μg/m3 (40) 11.2 μg/m3 (47) 49.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 44.0 ppb (41) N/A 44.0 μg/m3 (41) 12.4 μg/m3 (52) 52.0
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 50.0 μg/m3 (47) 12.6 μg/m3 (53) 53.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 52.0 μg/m3 (49) N/A 49.0
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 43.0 ppb (40) N/A 49.0 μg/m3 (46) N/A 46.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 46.0 μg/m3 (43) 7.5 μg/m3 (32) 43.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 29.0 ppb (27) N/A 50.0 μg/m3 (47) 6.2 μg/m3 (26) 47.0
 
Sept. 14, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 50.0 μg/m3 (47) 8.4 μg/m3 (36) 47.0
 
Sept. 14, 2021, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 44.0 μg/m3 (41) 9.6 μg/m3 (40) 41.0
 
Sept. 14, 2021, noon N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 17.0 ppb (16) N/A 44.0 μg/m3 (41) 9.2 μg/m3 (39) 41.0
 
Sept. 14, 2021, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 38.0 μg/m3 (36) 8.3 μg/m3 (35) 36.0
 
Sept. 14, 2021, 10 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 22.0 ppb (21) N/A 25.0 μg/m3 (24) 5.5 μg/m3 (23) 24.0
 
Sept. 14, 2021, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 27.0 μg/m3 (25) 7.4 μg/m3 (31) 31.0
 
Sept. 14, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 24.0 μg/m3 (23) 7.1 μg/m3 (30) 30.0
 
Sept. 14, 2021, 7 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 22.0 μg/m3 (21) 6.3 μg/m3 (27) 27.0
 
Sept. 14, 2021, 6 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 23.0 ppb (22) N/A 20.0 μg/m3 (19) 8.9 μg/m3 (38) 38.0
 
Sept. 14, 2021, 5 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 20.0 μg/m3 (19) 6.7 μg/m3 (28) 28.0
 
Sept. 14, 2021, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 22.0 μg/m3 (21) 8.9 μg/m3 (38) 38.0
 
Sept. 14, 2021, 3 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 23.0 μg/m3 (22) 8.6 μg/m3 (36) 36.0
 
Sept. 14, 2021, 2 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 26.0 μg/m3 (25) 9.9 μg/m3 (42) 42.0
 
Sept. 14, 2021, 1 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 32.0 μg/m3 (30) 15.1 μg/m3 (58) 58.0
 
Sept. 14, 2021, midnight N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 33.0 μg/m3 (31) 15.8 μg/m3 (59) 59.0
 
Sept. 13, 2021, 11 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 30.0 μg/m3 (28) N/A 37.0
 
Sept. 13, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 31.0 μg/m3 (29) 12.7 μg/m3 (53) 53.0
 
Sept. 13, 2021, 9 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 48.0 ppb (45) N/A 38.0 μg/m3 (36) 13.7 μg/m3 (55) 55.0
 
Sept. 13, 2021, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 41.0 μg/m3 (38) 12.5 μg/m3 (52) 52.0
 
Sept. 13, 2021, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 38.0 μg/m3 (36) 12.5 μg/m3 (52) 52.0
 
Sept. 13, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 35.0 μg/m3 (33) 13.8 μg/m3 (55) 55.0
 
Sept. 13, 2021, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 41.0 ppb (38) N/A 33.0 μg/m3 (31) 10.8 μg/m3 (46) 46.0
 
Sept. 13, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 56.0 μg/m3 (52) 11.8 μg/m3 (50) 52.0
 
Sept. 13, 2021, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 27.0 ppb (25) N/A 103.0 μg/m3 (75) 17.1 μg/m3 (62) 75.0
 
Sept. 13, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 41.0 μg/m3 (38) 13.8 μg/m3 (55) 55.0
 
Sept. 13, 2021, 1 p.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 12.0 ppb (12) N/A 38.0 μg/m3 (36) 12.4 μg/m3 (52) 52.0
 
Sept. 13, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 2.0 ppb (2) N/A 32.0 μg/m3 (30) 12.3 μg/m3 (52) 52.0
 
Sept. 13, 2021, 11 a.m. N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 0.0 ppb (0) N/A 25.0 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
Sept. 13, 2021, 10 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 2.0 ppb (2) N/A 23.0 μg/m3 (22) 9.9 μg/m3 (42) 42.0
 
Sept. 13, 2021, 9 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (2) 1.0 ppb (1) N/A 24.0 μg/m3 (23) 12.7 μg/m3 (53) 53.0
 
Sept. 13, 2021, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 3.0 ppb (3) N/A 19.0 μg/m3 (18) 6.5 μg/m3 (28) 28.0
 
Sept. 13, 2021, 7 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 9.0 ppb (9) N/A 13.0 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
Sept. 13, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 19.0 ppb (18) N/A 16.0 μg/m3 (15) 7.4 μg/m3 (31) 31.0
 
Sept. 13, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) N/A 15.0 μg/m3 (14) 6.8 μg/m3 (29) 29.0
 
Sept. 13, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 22.0 ppb (21) N/A 20.0 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
Sept. 13, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A 24.0 μg/m3 (23) 11.9 μg/m3 (50) 50.0
 
Sept. 13, 2021, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) N/A 50.0 μg/m3 (47) 13.8 μg/m3 (55) 55.0
 
Sept. 13, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A 30.0 μg/m3 (28) 12.2 μg/m3 (52) 52.0
 
Sept. 13, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 39.0 μg/m3 (37) 8.7 μg/m3 (37) 46.0
 
Sept. 12, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 56.0 ppb (55) N/A 46.0 μg/m3 (43) N/A 55.0
 
Sept. 12, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 42.0 μg/m3 (39) 10.6 μg/m3 (45) 47.0
 
Sept. 12, 2021, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 42.0 μg/m3 (39) 11.0 μg/m3 (46) 48.0
 
Sept. 12, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 43.0 μg/m3 (40) 11.4 μg/m3 (48) 48.0
 
Sept. 12, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 40.0 μg/m3 (38) 15.3 μg/m3 (58) 58.0
 
Sept. 12, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 40.0 μg/m3 (38) 12.3 μg/m3 (52) 52.0
 
Sept. 12, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 47.0 ppb (44) N/A 37.0 μg/m3 (35) 10.4 μg/m3 (44) 44.0
 
Sept. 12, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 43.0 ppb (40) N/A 35.0 μg/m3 (33) 14.0 μg/m3 (55) 55.0
 
Sept. 12, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) N/A 35.0 μg/m3 (33) 10.7 μg/m3 (45) 45.0
 
Sept. 12, 2021, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) N/A 35.0 μg/m3 (33) 11.5 μg/m3 (48) 48.0
 
Sept. 12, 2021, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 30.0 ppb (28) N/A 30.0 μg/m3 (28) 12.8 μg/m3 (53) 53.0
 
Sept. 12, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 31.0 μg/m3 (29) 10.2 μg/m3 (43) 43.0
 
Sept. 12, 2021, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 29.0 μg/m3 (27) 10.3 μg/m3 (43) 43.0
 
Sept. 12, 2021, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) N/A N/A 31.0 μg/m3 (29) 9.9 μg/m3 (42) 42.0
 
Sept. 12, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 36.0 μg/m3 (34) 6.4 μg/m3 (27) 34.0
 
Sept. 12, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 32.0 μg/m3 (30) 8.6 μg/m3 (36) 36.0
 
Sept. 12, 2021, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 28.0 ppb (26) N/A 30.0 μg/m3 (28) 11.9 μg/m3 (50) 50.0
 
Sept. 12, 2021, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 31.0 μg/m3 (29) 11.4 μg/m3 (48) 48.0
 
Sept. 12, 2021, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 36.0 ppb (34) N/A 29.0 μg/m3 (27) 14.0 μg/m3 (55) 55.0
 
Sept. 12, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 39.0 ppb (37) N/A 31.0 μg/m3 (29) 9.2 μg/m3 (39) 39.0
 
Sept. 12, 2021, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 43.0 ppb (40) N/A 35.0 μg/m3 (33) 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2021, 2 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 38.0 μg/m3 (36) 9.7 μg/m3 (41) 42.0
 
Sept. 12, 2021, 1 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 46.0 ppb (43) N/A 42.0 μg/m3 (39) 12.2 μg/m3 (52) 52.0
 
Sept. 12, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 42.0 μg/m3 (39) 11.7 μg/m3 (49) 49.0
 
Sept. 11, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 51.0 ppb (48) N/A 39.0 μg/m3 (37) N/A 48.0
 
Sept. 11, 2021, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 50.0 ppb (47) N/A 42.0 μg/m3 (39) 9.9 μg/m3 (42) 47.0
 
Sept. 11, 2021, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 44.0 μg/m3 (41) 11.8 μg/m3 (50) 50.0
 
Sept. 11, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 49.0 ppb (46) N/A 47.0 μg/m3 (44) 11.4 μg/m3 (48) 48.0
 
Sept. 11, 2021, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 45.0 ppb (42) N/A 43.0 μg/m3 (40) 6.9 μg/m3 (29) 42.0
 
Sept. 11, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 43.0 ppb (40) N/A 40.0 μg/m3 (38) 6.2 μg/m3 (26) 40.0