AQSQID: 261130001

Site Name: Houghton Lake

Location: Merritt (S Jeffs Rd), MI

Reporting: True, Located: True

Current AQI: 41.0

Merritt (S Jeffs Rd) MI, US: 44.3106, -84.891899

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 3, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 9.9 μg/m3 (41) 41.0
 
April 3, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 12.9 μg/m3 (52) 52.0
 
April 3, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A N/A 9.1 μg/m3 (38) 38.0
 
April 3, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 17.0 ppb (13) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 3, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 3, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 16.0 ppb (12) N/A N/A 9.1 μg/m3 (38) 38.0
 
April 3, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 3, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 3, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
April 3, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 28.0 ppb (22) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 3, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) N/A N/A 10.9 μg/m3 (45) 45.0
 
April 3, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A N/A 43.0 ppb (33) N/A N/A 8.1 μg/m3 (34) 34.0
 
April 2, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 46.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
April 2, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 48.0 ppb (37) N/A N/A 7.0 μg/m3 (29) 37.0
 
April 2, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 47.0 ppb (36) N/A N/A 7.0 μg/m3 (29) 36.0
 
April 2, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 47.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
April 2, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 47.0 ppb (36) N/A N/A 8.9 μg/m3 (37) 37.0
 
April 2, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 46.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
April 2, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 45.0 ppb (35) N/A N/A 6.1 μg/m3 (25) 35.0
 
April 2, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 43.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
April 2, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 40.0 ppb (31) N/A N/A 7.9 μg/m3 (33) 33.0
 
April 2, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 36.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 11.9 μg/m3 (50) 50.0
 
April 2, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) N/A N/A 10.1 μg/m3 (42) 42.0
 
April 2, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 11.9 μg/m3 (50) 50.0
 
April 2, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) N/A N/A 8.1 μg/m3 (34) 34.0
 
April 2, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 20.0 ppb (15) N/A N/A 10.9 μg/m3 (45) 45.0
 
April 2, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 20.0 ppb (15) N/A N/A 9.1 μg/m3 (38) 38.0
 
April 2, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 20.0 ppb (15) N/A N/A 7.1 μg/m3 (30) 30.0
 
April 2, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 9.9 μg/m3 (41) 41.0
 
April 2, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
April 2, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 25.0 ppb (19) N/A N/A 9.1 μg/m3 (38) 38.0
 
April 2, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 28.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 31.0 ppb (24) N/A N/A 10.9 μg/m3 (45) 45.0
 
April 2, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
April 2, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A N/A 36.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
April 1, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 37.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
April 1, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 7.0 μg/m3 (29) 29.0
 
April 1, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
April 1, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) N/A N/A 7.9 μg/m3 (33) 33.0
 
April 1, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A 10.9 μg/m3 (45) 45.0
 
April 1, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A 9.1 μg/m3 (38) 38.0
 
April 1, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
April 1, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 6.1 μg/m3 (25) 25.0
 
April 1, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A 7.9 μg/m3 (33) 33.0
 
April 1, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) N/A N/A 9.9 μg/m3 (41) 41.0
 
April 1, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) N/A N/A 12.9 μg/m3 (52) 52.0
 
April 1, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 11.1 μg/m3 (46) 46.0
 
April 1, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A 8.1 μg/m3 (34) 34.0
 
April 1, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 1, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 1, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 1, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 1, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 1, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
April 1, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 23.0 ppb (18) N/A N/A 7.1 μg/m3 (30) 30.0
 
April 1, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 24.0 ppb (18) N/A N/A 8.0 μg/m3 (33) 33.0
 
April 1, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 26.0 ppb (20) N/A N/A 8.0 μg/m3 (33) 33.0
 
April 1, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A 10.9 μg/m3 (45) 45.0
 
April 1, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 31, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 31, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 31, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 31, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 28.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 29.0 ppb (22) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 30.0 ppb (23) N/A N/A 5.1 μg/m3 (21) 23.0
 
March 31, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 29.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 31, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 31, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 26.0 ppb (20) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 31, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) N/A N/A 12.9 μg/m3 (52) 52.0
 
March 31, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A 7.2 μg/m3 (30) 30.0
 
March 31, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 31, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 31, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A 5.1 μg/m3 (21) 21.0
 
March 31, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 31, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
March 31, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 31, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 28.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 30.0 ppb (23) N/A N/A 5.1 μg/m3 (21) 23.0
 
March 31, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 32.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 31, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 30, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 30, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 30, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) N/A N/A 5.1 μg/m3 (21) 27.0
 
March 30, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
March 30, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 37.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 37.0 ppb (28) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 30, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
March 30, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 30, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) N/A N/A 5.1 μg/m3 (21) 27.0
 
March 30, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) N/A N/A 5.0 μg/m3 (21) 27.0
 
March 30, 2020, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
March 30, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 30, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A 6.1 μg/m3 (25) 26.0
 
March 30, 2020, 10 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 32.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 32.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 30, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 32.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 30, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 30, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 30, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 30, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 29, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 29, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 29, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A 6.1 μg/m3 (25) 25.0
 
March 29, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 29, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 29, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 29, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 29, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 29, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 29, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 29, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 29, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A 5.1 μg/m3 (21) 21.0
 
March 29, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 29, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 29, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 29, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 29, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 6.1 μg/m3 (25) 25.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 29, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 29, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 29, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 29, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 29, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 29, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 28, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 28, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 28, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 28, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 28, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 12.9 μg/m3 (52) 52.0
 
March 28, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 28, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 12.9 μg/m3 (52) 52.0
 
March 28, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 28, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 28, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 12.9 μg/m3 (52) 52.0
 
March 28, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 28, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 28, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 28, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 28, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A 7.2 μg/m3 (30) 30.0
 
March 28, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 28, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 12.9 μg/m3 (52) 52.0
 
March 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 6.2 μg/m3 (26) 26.0
 
March 28, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
March 28, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 28, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 28, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 28, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 12.8 μg/m3 (52) 52.0
 
March 28, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 27, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) N/A N/A 13.9 μg/m3 (54) 54.0
 
March 27, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 27, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 42.0 ppb (32) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 27, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 42.0 ppb (32) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 27, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) N/A N/A 7.1 μg/m3 (30) 32.0
 
March 27, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 39.0 ppb (30) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 27, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
March 27, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0