AQSQID: 190450019

Site Name: Clinton, Chancy Park

Location: Clinton (23rd Place), IA

Reporting: True, Located: True

Current AQI: 52.0

Clinton (23rd Place) IA, US: 41.823101, -90.211899

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 22, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 22, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
May 22, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 22, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 22, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 22, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 22, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 22, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 22, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 22, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 22, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 22, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 22, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 21, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 21, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
May 21, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 21, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.0 μg/m3 (0) N/A
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 21, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) N/A
May 21, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 21, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) N/A
May 20, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.0 μg/m3 (0) N/A
May 20, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 20, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 20, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) N/A
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) N/A
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) N/A
May 20, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.0 μg/m3 (0) N/A
May 20, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -4.0 μg/m3 (0) N/A
May 20, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -2.0 μg/m3 (0) N/A
May 20, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.0 μg/m3 (0) N/A
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -2.0 μg/m3 (0) N/A
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) N/A
May 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 20, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 19, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 19, 2019, midnight N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
May 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
May 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
May 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 18, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
May 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 18, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
May 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
May 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 17, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
May 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
May 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 27.0 μg/m3 (82) 82.0
 
May 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
May 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
May 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 17, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 16, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
May 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
May 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
May 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
May 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
May 16, 2019, 3 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
May 16, 2019, 2 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
May 16, 2019, noon N/A N/A N/A N/A N/A 5.0 ppb (7) N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
May 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
May 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
May 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
May 16, 2019, 3 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
May 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 16, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
May 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
May 15, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0