AQSQID: 370670022

Site Name: Hattieaven

Location: Winston Salem (E Winston), NC

Reporting: True, Located: True

Current AQI: 38.0

Winston Salem (E Winston) NC, US: 36.1106, -80.2267

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 6, 2020, 7 p.m. 2.4 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 12.0 μg/m3 (11) 5.1 μg/m3 (21) 38.0
 
April 6, 2020, 6 p.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 14.0 μg/m3 (13) 5.6 μg/m3 (23) 39.0
 
April 6, 2020, 5 p.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 38.0
 
April 6, 2020, 4 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 13.0 μg/m3 (12) 7.5 μg/m3 (31) 38.0
 
April 6, 2020, 3 p.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 18.0 μg/m3 (16) 9.6 μg/m3 (40) 40.0
 
April 6, 2020, 2 p.m. 6.4 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
April 6, 2020, 1 p.m. 12.1 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 23.0 μg/m3 (21) 12.4 μg/m3 (51) 51.0
 
April 6, 2020, noon 18.8 ppb (17) 4.6 ppb (4) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 25.0 μg/m3 (23) 14.4 μg/m3 (55) 55.0
 
April 6, 2020, 11 a.m. 19.1 ppb (18) 2.6 ppb (2) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 9.0 ppb (7) N/A 21.0 μg/m3 (19) 12.9 μg/m3 (52) 52.0
 
April 6, 2020, 10 a.m. 10.5 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 19.0 μg/m3 (17) 12.3 μg/m3 (51) 51.0
 
April 6, 2020, 9 a.m. 4.8 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 16.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
April 6, 2020, 8 a.m. 4.9 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 18.0 μg/m3 (16) 11.9 μg/m3 (50) 50.0
 
April 6, 2020, 7 a.m. 5.4 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 19.0 μg/m3 (17) 12.9 μg/m3 (52) 52.0
 
April 6, 2020, 6 a.m. 4.3 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 20.0 μg/m3 (18) 12.6 μg/m3 (51) 51.0
 
April 6, 2020, 5 a.m. 6.4 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 20.0 μg/m3 (18) 13.2 μg/m3 (53) 53.0
 
April 6, 2020, 4 a.m. 14.0 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 23.0 μg/m3 (21) 14.5 μg/m3 (55) 55.0
 
April 6, 2020, 3 a.m. 11.8 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 25.0 μg/m3 (23) 16.3 μg/m3 (59) 59.0
 
April 6, 2020, 2 a.m. 9.6 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A 33.0 μg/m3 (30) 20.8 μg/m3 (69) 69.0
 
April 6, 2020, 1 a.m. 8.3 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 26.0 μg/m3 (24) 15.3 μg/m3 (57) 57.0
 
April 6, 2020, midnight 6.5 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 25.0 μg/m3 (23) 15.0 μg/m3 (56) 56.0
 
April 5, 2020, 11 p.m. 3.4 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 18.0 μg/m3 (16) 9.6 μg/m3 (40) 40.0
 
April 5, 2020, 10 p.m. 2.0 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 17.0 μg/m3 (15) 8.4 μg/m3 (35) 40.0
 
April 5, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A 16.0 μg/m3 (15) 8.7 μg/m3 (36) 41.0
 
April 5, 2020, 8 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 15.0 μg/m3 (14) 8.5 μg/m3 (35) 40.0
 
April 5, 2020, 7 p.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 14.0 μg/m3 (13) 7.9 μg/m3 (33) 38.0
 
April 5, 2020, 6 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 13.0 μg/m3 (12) 7.2 μg/m3 (30) 36.0
 
April 5, 2020, 5 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 13.0 μg/m3 (12) 6.7 μg/m3 (28) 33.0
 
April 5, 2020, 4 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 30.0
 
April 5, 2020, 3 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 28.0
 
April 5, 2020, 2 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 28.0
 
April 5, 2020, 1 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 4.6 μg/m3 (19) 25.0
 
April 5, 2020, noon 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
April 5, 2020, 11 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 5.6 μg/m3 (23) 23.0
 
April 5, 2020, 10 a.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
April 5, 2020, 9 a.m. 1.6 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
April 5, 2020, 8 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
April 5, 2020, 7 a.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 10.0 μg/m3 (9) 6.3 μg/m3 (26) 27.0
 
April 5, 2020, 6 a.m. 1.6 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 5.6 μg/m3 (23) 29.0
 
April 5, 2020, 5 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 12.0 μg/m3 (11) 6.3 μg/m3 (26) 33.0
 
April 5, 2020, 4 a.m. 3.4 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 12.0 μg/m3 (11) 7.1 μg/m3 (30) 33.0
 
April 5, 2020, 3 a.m. 4.4 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 14.0 μg/m3 (13) 7.3 μg/m3 (30) 34.0
 
April 5, 2020, 2 a.m. 5.3 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 7.4 μg/m3 (31) 34.0
 
April 5, 2020, 1 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 15.0 μg/m3 (14) 8.6 μg/m3 (36) 38.0
 
April 5, 2020, midnight 4.8 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 17.0 μg/m3 (15) 8.4 μg/m3 (35) 40.0
 
April 4, 2020, 11 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 53.0 ppb (41) N/A 14.0 μg/m3 (13) 5.5 μg/m3 (23) 41.0
 
April 4, 2020, 10 p.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 44.0
 
April 4, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A 12.0 μg/m3 (11) 5.2 μg/m3 (22) 44.0
 
April 4, 2020, 8 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 44.0
 
April 4, 2020, 7 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 10.0 μg/m3 (9) 5.1 μg/m3 (21) 44.0
 
April 4, 2020, 6 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 11.0 μg/m3 (10) 4.8 μg/m3 (20) 43.0
 
April 4, 2020, 5 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 13.0 μg/m3 (12) 4.6 μg/m3 (19) 43.0
 
April 4, 2020, 4 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 11.0 μg/m3 (10) 4.6 μg/m3 (19) 42.0
 
April 4, 2020, 3 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 39.0
 
April 4, 2020, 2 p.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 10.0 μg/m3 (9) 3.9 μg/m3 (16) 40.0
 
April 4, 2020, 1 p.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 38.0
 
April 4, 2020, noon 15.4 ppb (14) 4.2 ppb (4) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 15.0 μg/m3 (14) 5.8 μg/m3 (24) 24.0
 
April 4, 2020, 11 a.m. 20.6 ppb (19) 2.1 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 14.0 ppb (11) N/A 15.0 μg/m3 (14) 6.3 μg/m3 (26) 26.0
 
April 4, 2020, 10 a.m. 18.8 ppb (17) 0.1 ppb (0) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 12.0 μg/m3 (11) 5.6 μg/m3 (23) 23.0
 
April 4, 2020, 9 a.m. 14.4 ppb (13) 0.1 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 15.0 μg/m3 (14) 6.2 μg/m3 (26) 26.0
 
April 4, 2020, 8 a.m. 11.2 ppb (10) -0.1 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 16.0 μg/m3 (15) 5.8 μg/m3 (24) 25.0
 
April 4, 2020, 7 a.m. 10.3 ppb (10) -0.1 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 15.0 μg/m3 (14) 5.7 μg/m3 (24) 25.0
 
April 4, 2020, 6 a.m. 17.2 ppb (16) 0.0 ppb (0) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 19.0 μg/m3 (17) 7.8 μg/m3 (32) 32.0
 
April 4, 2020, 5 a.m. 10.3 ppb (10) -0.1 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 14.0 μg/m3 (13) 5.7 μg/m3 (24) 25.0
 
April 4, 2020, 4 a.m. 9.4 ppb (9) -0.2 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 13.0 μg/m3 (12) 5.2 μg/m3 (22) 28.0
 
April 4, 2020, 3 a.m. 11.4 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 14.0 μg/m3 (13) 5.7 μg/m3 (24) 27.0
 
April 4, 2020, 2 a.m. 7.4 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 32.0
 
April 4, 2020, 1 a.m. 5.5 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 35.0
 
April 4, 2020, midnight 7.9 ppb (7) 0.4 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 13.0 μg/m3 (12) 4.9 μg/m3 (20) 35.0
 
April 3, 2020, 11 p.m. 7.6 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 16.0 μg/m3 (15) 5.2 μg/m3 (22) 40.0
 
April 3, 2020, 10 p.m. 4.9 ppb (5) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 15.0 μg/m3 (14) 4.4 μg/m3 (18) 40.0
 
April 3, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 54.0 ppb (42) N/A 14.0 μg/m3 (13) 3.3 μg/m3 (14) 42.0
 
April 3, 2020, 8 p.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 13.0 μg/m3 (12) 3.4 μg/m3 (14) 42.0
 
April 3, 2020, 7 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 13.0 μg/m3 (12) 3.3 μg/m3 (14) 42.0
 
April 3, 2020, 6 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 10.0 μg/m3 (9) 3.3 μg/m3 (14) 42.0
 
April 3, 2020, 5 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 53.0 ppb (41) N/A 9.0 μg/m3 (8) 3.4 μg/m3 (14) 41.0
 
April 3, 2020, 4 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 9.0 μg/m3 (8) 3.5 μg/m3 (15) 39.0
 
April 3, 2020, 3 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A N/A 38.0
 
April 3, 2020, 2 p.m. 2.8 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 36.0
 
April 3, 2020, 1 p.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 34.0
 
April 3, 2020, noon 5.8 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 30.0
 
April 3, 2020, 11 a.m. 8.7 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 25.0
 
April 3, 2020, 10 a.m. 7.7 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 3.8 μg/m3 (16) 24.0
 
April 3, 2020, 9 a.m. 6.0 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 3.9 μg/m3 (16) 25.0
 
April 3, 2020, 8 a.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 8.0 μg/m3 (7) 3.9 μg/m3 (16) 28.0
 
April 3, 2020, 7 a.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 7.0 μg/m3 (6) 3.9 μg/m3 (16) 28.0
 
April 3, 2020, 6 a.m. 3.5 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 28.0
 
April 3, 2020, 5 a.m. 3.4 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 29.0
 
April 3, 2020, 4 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 28.0
 
April 3, 2020, 3 a.m. 5.8 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 11.0 μg/m3 (10) 5.5 μg/m3 (23) 29.0
 
April 3, 2020, 2 a.m. 5.9 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 29.0
 
April 3, 2020, 1 a.m. 3.7 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 10.0 μg/m3 (9) 5.1 μg/m3 (21) 32.0
 
April 3, 2020, midnight 2.8 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 8.0 μg/m3 (7) 4.1 μg/m3 (17) 34.0
 
April 2, 2020, 11 p.m. 2.5 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 36.0
 
April 2, 2020, 10 p.m. 2.4 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 8.0 μg/m3 (7) 3.5 μg/m3 (15) 37.0
 
April 2, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A 9.0 μg/m3 (8) 3.5 μg/m3 (15) 38.0
 
April 2, 2020, 8 p.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 38.0
 
April 2, 2020, 7 p.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 10.0 μg/m3 (9) 3.6 μg/m3 (15) 37.0
 
April 2, 2020, 6 p.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 36.0
 
April 2, 2020, 5 p.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 12.0 μg/m3 (11) 3.6 μg/m3 (15) 34.0
 
April 2, 2020, 4 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 32.0
 
April 2, 2020, 3 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 10.0 μg/m3 (9) 3.3 μg/m3 (14) 32.0
 
April 2, 2020, 2 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 4.1 μg/m3 (17) 29.0
 
April 2, 2020, 1 p.m. 5.7 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 12.0 μg/m3 (11) 5.1 μg/m3 (21) 24.0
 
April 2, 2020, noon 9.8 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 11.0 μg/m3 (10) 6.3 μg/m3 (26) 26.0
 
April 2, 2020, 11 a.m. 12.8 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 11.0 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
April 2, 2020, 10 a.m. 11.5 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 10.0 ppb (8) N/A 8.0 μg/m3 (7) 5.3 μg/m3 (22) 22.0
 
April 2, 2020, 9 a.m. 8.2 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 16.0 ppb (12) N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 20.0
 
April 2, 2020, 8 a.m. 10.2 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 19.0
 
April 2, 2020, 7 a.m. 7.6 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 6.0 μg/m3 (5) 4.3 μg/m3 (18) 18.0
 
April 2, 2020, 6 a.m. 7.5 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 6.0 μg/m3 (5) 4.3 μg/m3 (18) 18.0
 
April 2, 2020, 5 a.m. 7.4 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 19.0 ppb (15) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 19.0
 
April 2, 2020, 4 a.m. 4.6 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 18.0
 
April 2, 2020, 3 a.m. 4.4 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 19.0
 
April 2, 2020, 2 a.m. 3.8 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 22.0
 
April 2, 2020, 1 a.m. 4.2 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 22.0
 
April 2, 2020, midnight 3.9 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
April 1, 2020, 11 p.m. 2.3 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 29.0
 
April 1, 2020, 10 p.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 7.0 μg/m3 (6) 4.9 μg/m3 (20) 31.0
 
April 1, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 31.0
 
April 1, 2020, 8 p.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 32.0
 
April 1, 2020, 7 p.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 31.0
 
April 1, 2020, 6 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 7.0 μg/m3 (6) 4.1 μg/m3 (17) 30.0
 
April 1, 2020, 5 p.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 28.0
 
April 1, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A 5.0 μg/m3 (5) 2.8 μg/m3 (12) 27.0
 
April 1, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 27.0
 
April 1, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A 3.0 μg/m3 (3) 1.2 μg/m3 (5) 26.0
 
April 1, 2020, 1 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 21.0
 
April 1, 2020, noon 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 3.0 μg/m3 (3) 1.4 μg/m3 (6) 16.0
 
April 1, 2020, 11 a.m. 9.9 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 14.0 ppb (11) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 11.0
 
April 1, 2020, 10 a.m. 3.2 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 2.0 μg/m3 (2) 1.5 μg/m3 (6) 17.0
 
April 1, 2020, 9 a.m. 2.4 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 1.0 μg/m3 (1) 1.3 μg/m3 (5) 19.0
 
April 1, 2020, 8 a.m. 1.3 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 1.0 μg/m3 (1) 1.1 μg/m3 (5) 22.0
 
April 1, 2020, 7 a.m. 1.3 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 2.0 μg/m3 (2) 1.5 μg/m3 (6) 23.0
 
April 1, 2020, 6 a.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 25.0
 
April 1, 2020, 5 a.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 25.0
 
April 1, 2020, 4 a.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 27.0
 
April 1, 2020, 3 a.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (15) 26.0
 
April 1, 2020, 2 a.m. 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A 7.0 μg/m3 (6) 4.3 μg/m3 (18) 25.0
 
April 1, 2020, 1 a.m. 1.4 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 7.0 μg/m3 (6) 4.3 μg/m3 (18) 29.0
 
April 1, 2020, midnight 1.1 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 32.0
 
March 31, 2020, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 11.0 μg/m3 (10) 7.8 μg/m3 (32) 32.0
 
March 31, 2020, 10 p.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 11.0 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
March 31, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A 9.0 μg/m3 (8) 5.5 μg/m3 (23) 28.0
 
March 31, 2020, 8 p.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 28.0
 
March 31, 2020, 7 p.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 10.0 μg/m3 (9) 5.8 μg/m3 (24) 28.0
 
March 31, 2020, 6 p.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 28.0
 
March 31, 2020, 5 p.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 11.0 μg/m3 (10) 5.9 μg/m3 (25) 28.0
 
March 31, 2020, 4 p.m. 3.6 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 12.0 μg/m3 (11) 4.9 μg/m3 (20) 28.0
 
March 31, 2020, 3 p.m. 4.2 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 12.0 μg/m3 (11) 4.7 μg/m3 (20) 28.0
 
March 31, 2020, 2 p.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 12.0 μg/m3 (11) 4.2 μg/m3 (18) 28.0
 
March 31, 2020, 1 p.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 30.0
 
March 31, 2020, noon 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 32.0
 
March 31, 2020, 11 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 11.0 μg/m3 (10) 3.9 μg/m3 (16) 32.0
 
March 31, 2020, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 33.0
 
March 31, 2020, 9 a.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 9.0 μg/m3 (8) 3.7 μg/m3 (15) 35.0
 
March 31, 2020, 8 a.m. 1.1 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 8.0 μg/m3 (7) 3.6 μg/m3 (15) 33.0
 
March 31, 2020, 7 a.m. 3.7 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 30.0
 
March 31, 2020, 6 a.m. 8.0 ppb (7) -0.2 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 25.0
 
March 31, 2020, 5 a.m. 4.4 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 31.0
 
March 31, 2020, 4 a.m. 5.7 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 11.0 μg/m3 (10) 3.9 μg/m3 (16) 31.0
 
March 31, 2020, 3 a.m. 4.3 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 32.0
 
March 31, 2020, 2 a.m. 5.3 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 31.0
 
March 31, 2020, 1 a.m. 6.2 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 13.0 μg/m3 (12) 6.5 μg/m3 (27) 30.0
 
March 31, 2020, midnight 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 33.0
 
March 30, 2020, 11 p.m. 3.4 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 11.0 μg/m3 (10) 3.7 μg/m3 (15) 35.0
 
March 30, 2020, 10 p.m. -4.1 ppb (0) -6.8 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 11.0 μg/m3 (10) 4.1 μg/m3 (17) 37.0
 
March 30, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A 9.0 μg/m3 (8) 3.6 μg/m3 (15) 38.0
 
March 30, 2020, 8 p.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 9.0 μg/m3 (8) 3.5 μg/m3 (15) 38.0