AQSQID: 371310003

Site Name: Northampton

Location: Gaston (Hurricane Dr), NC

Reporting: True, Located: True

Current AQI: 12.0

Gaston (Hurricane Dr) NC, US: 36.511708, -77.655389

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 26, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 26, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 26, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 26, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A -4.0 μg/m3 (0) N/A
Jan. 26, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) N/A
Jan. 26, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 26, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 26, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 26, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Jan. 26, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Jan. 26, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 26, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 26, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 26, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 26, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 26, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 26, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 26, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 26, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 26, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 37.0 μg/m3 (104) 104.0
 
Jan. 26, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 25, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 25, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 25, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 25, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 25, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 25, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 25, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A -3.0 μg/m3 (0) 1.0
 
Jan. 25, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 1.0
 
Jan. 25, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0
 
Jan. 25, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 25, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 25, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 24, 2020, 2 p.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
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 24, 2020, 10 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
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 24, 2020, 7 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
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 24, 2020, 4 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
 
Jan. 24, 2020, 3 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
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 9 p.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
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2020, noon N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 23, 2020, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, noon N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 2.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 6 p.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
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 3 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
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 9 p.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
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A -3.0 μg/m3 (0) N/A
Jan. 19, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2020, noon 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