AQSQID: 060470003

Site Name: Merced - S. Coffee Ave

Location: Merced (S Coffee St), CA

Reporting: True, Located: True

Current AQI: 59.0

Merced (S Coffee St) CA, US: 37.2817, -120.433601

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2020, 9 a.m. 8.7 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 2.0 ppb (2) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 21, 2020, 8 a.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 3.0 ppb (2) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 21, 2020, 7 a.m. 5.6 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 4.0 ppb (3) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 21, 2020, 6 a.m. 8.7 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 2.0 ppb (2) N/A N/A 27.0 μg/m3 (82) 82.0
 
Jan. 21, 2020, 5 a.m. 12.6 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (8) N/A N/A 2.0 ppb (2) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 21, 2020, 4 a.m. 10.1 ppb (9) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 4.0 ppb (3) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 21, 2020, 3 a.m. 6.8 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 5.0 ppb (4) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 21, 2020, 2 a.m. 7.7 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 5.0 ppb (4) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 21, 2020, 1 a.m. 7.1 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (5) N/A N/A N/A 7.0
 
Jan. 21, 2020, midnight 5.8 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 20, 2020, 11 p.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 10.0 ppb (8) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 20, 2020, 10 p.m. 5.9 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 8.0 ppb (6) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 20, 2020, 9 p.m. 5.8 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 7.0 ppb (5) N/A N/A 25.0 μg/m3 (78) 78.0
 
Jan. 20, 2020, 8 p.m. 6.7 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 7.0 ppb (5) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 20, 2020, 7 p.m. 7.1 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (5) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 20, 2020, 6 p.m. 10.8 ppb (10) 4.9 ppb (5) N/A 6.0 ppb (6) N/A N/A 4.0 ppb (3) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 20, 2020, 5 p.m. 14.7 ppb (14) 6.4 ppb (6) N/A 8.0 ppb (7) N/A N/A 2.0 ppb (2) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 20, 2020, 4 p.m. 15.0 ppb (14) 5.7 ppb (5) N/A 9.0 ppb (8) N/A N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 20, 2020, 3 p.m. 8.5 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 3.0 ppb (2) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 20, 2020, 2 p.m. 6.6 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 5.0 ppb (4) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2020, 1 p.m. 7.0 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 6.0 ppb (5) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 20, 2020, noon 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 20, 2020, 10 a.m. 8.0 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 6.0 ppb (5) N/A N/A 25.0 μg/m3 (78) 78.0
 
Jan. 20, 2020, 9 a.m. 8.0 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 7.0 ppb (5) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2020, 8 a.m. 5.2 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 20, 2020, 7 a.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 11.0 ppb (8) N/A N/A 24.0 μg/m3 (76) 76.0
 
Jan. 20, 2020, 6 a.m. 5.6 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) N/A N/A 24.0 μg/m3 (76) 76.0
 
Jan. 20, 2020, 5 a.m. 6.9 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 20, 2020, 4 a.m. 6.1 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 20, 2020, 3 a.m. 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 20, 2020, 2 a.m. 4.3 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 20, 2020, 1 a.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 20, 2020, midnight 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 11 p.m. 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 10 p.m. 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 9 p.m. 4.4 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 8 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, 7 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 6 p.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, 5 p.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 19, 2020, 4 p.m. 3.9 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 19, 2020, 3 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 19, 2020, 2 p.m. 3.7 ppb (3) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 1 p.m. 4.2 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 19, 2020, noon 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 10 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 19, 2020, 9 a.m. 4.6 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (12) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 19, 2020, 8 a.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 7 a.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (12) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2020, 6 a.m. 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 5 a.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 19, 2020, 4 a.m. 4.5 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 19, 2020, 3 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2020, 2 a.m. 6.0 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 1 a.m. 6.4 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 19, 2020, midnight 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 18, 2020, 11 p.m. 6.6 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 18, 2020, 10 p.m. 4.6 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (12) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 18, 2020, 9 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (12) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2020, 8 p.m. 6.8 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2020, 7 p.m. 8.7 ppb (8) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2020, 6 p.m. 7.4 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 5 p.m. 6.7 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2020, 4 p.m. 7.8 ppb (7) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 3 p.m. 7.4 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 6.0 ppb (5) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 2 p.m. 8.2 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 5.0 ppb (4) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 1 p.m. 8.8 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 3.0 ppb (2) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 11 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. 18, 2020, 10 a.m. 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 9 a.m. 4.1 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 10.0 ppb (8) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2020, 8 a.m. 6.7 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 18, 2020, 7 a.m. 7.6 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 6.0 ppb (5) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 6 a.m. 6.7 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 5 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 13.0 ppb (10) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 4 a.m. 6.7 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 3 a.m. 9.3 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 11.0 ppb (8) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 2 a.m. 5.4 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 1 a.m. 5.5 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, midnight 4.9 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 11 p.m. 5.6 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 10 p.m. 6.6 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 9 p.m. 10.8 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 17, 2020, 8 p.m. 10.9 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 17, 2020, 7 p.m. 14.6 ppb (14) 3.9 ppb (4) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 17, 2020, 6 p.m. 10.6 ppb (10) 3.2 ppb (3) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, 5 p.m. 10.0 ppb (9) 3.1 ppb (3) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 4 p.m. 19.5 ppb (18) 7.3 ppb (7) N/A 12.0 ppb (11) N/A N/A 10.0 ppb (8) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, 3 p.m. 15.2 ppb (14) 3.4 ppb (3) N/A 12.0 ppb (11) N/A N/A 6.0 ppb (5) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, 2 p.m. 11.1 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 7.0 ppb (5) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2020, 1 p.m. 8.0 ppb (7) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, noon 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 11 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. 17, 2020, 10 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A 3.0 μg/m3 (12) 18.0
 
Jan. 17, 2020, 8 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2020, 7 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 6 a.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 5 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2020, 4 a.m. 10.4 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, 3 a.m. 26.0 ppb (24) 11.9 ppb (11) N/A 14.0 ppb (13) N/A N/A 16.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 24.0
 
Jan. 17, 2020, 2 a.m. 10.1 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 1 a.m. 20.3 ppb (19) 6.2 ppb (6) N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) N/A N/A 3.0 μg/m3 (12) 19.0
 
Jan. 17, 2020, midnight 7.2 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) N/A N/A 1.0 μg/m3 (4) 23.0
 
Jan. 16, 2020, 11 p.m. 4.7 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A N/A 2.0 μg/m3 (8) 24.0
 
Jan. 16, 2020, 10 p.m. 4.6 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 9 p.m. 5.7 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 8 p.m. 4.4 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 7 p.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 6 p.m. 5.4 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 5 p.m. 9.4 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 4 p.m. 13.0 ppb (12) 4.5 ppb (4) N/A 9.0 ppb (8) N/A N/A 13.0 ppb (10) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 16, 2020, 3 p.m. 13.2 ppb (12) 3.3 ppb (3) N/A 10.0 ppb (9) N/A N/A 6.0 ppb (5) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 16, 2020, 2 p.m. 14.5 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A N/A 2.0 ppb (2) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 16, 2020, 1 p.m. 12.4 ppb (11) 2.4 ppb (2) N/A 10.0 ppb (9) N/A N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 16, 2020, noon 12.4 ppb (11) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 3.0 ppb (2) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 16, 2020, 10 a.m. 13.1 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 6.0 ppb (5) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 16, 2020, 9 a.m. 8.3 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 16, 2020, 8 a.m. 6.5 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 16, 2020, 7 a.m. 4.3 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, 6 a.m. 5.8 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 5 a.m. 9.3 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2020, 4 a.m. 21.7 ppb (20) 3.4 ppb (3) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, 3 a.m. 26.1 ppb (24) 3.9 ppb (4) N/A 22.0 ppb (20) N/A N/A 3.0 ppb (2) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 16, 2020, 2 a.m. 18.3 ppb (17) 1.1 ppb (1) N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, 1 a.m. 14.2 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2020, midnight 9.4 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2020, 11 p.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 10 p.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 9 p.m. 6.7 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2020, 8 p.m. 7.2 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 7 p.m. 7.0 ppb (6) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 6 p.m. 12.7 ppb (12) 4.8 ppb (4) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 5 p.m. 8.8 ppb (8) 3.6 ppb (3) N/A 5.0 ppb (5) N/A N/A 13.0 ppb (10) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 4 p.m. 21.4 ppb (20) 11.6 ppb (11) N/A 10.0 ppb (9) N/A N/A 5.0 ppb (4) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 3 p.m. 20.0 ppb (19) 9.9 ppb (9) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) N/A N/A 4.0 μg/m3 (17) 19.0
 
Jan. 15, 2020, 2 p.m. 20.0 ppb (19) 10.3 ppb (10) N/A 10.0 ppb (9) N/A N/A 0.0 ppb (0) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 1 p.m. 32.4 ppb (30) 22.0 ppb (20) N/A 10.0 ppb (9) N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, noon 21.6 ppb (20) 9.4 ppb (9) N/A 12.0 ppb (11) N/A N/A 0.0 ppb (0) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 11 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. 15, 2020, 10 a.m. 11.5 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A N/A 3.0 ppb (2) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 9 a.m. 12.9 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 4.0 ppb (3) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2020, 8 a.m. 17.1 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 9.0 ppb (7) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2020, 7 a.m. 16.8 ppb (16) 2.8 ppb (3) N/A 14.0 ppb (13) N/A N/A 7.0 ppb (5) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 6 a.m. 16.2 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 10.0 ppb (8) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 15, 2020, 5 a.m. 8.0 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2020, 4 a.m. 4.8 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2020, 3 a.m. 6.7 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 2 a.m. 8.2 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2020, 1 a.m. 7.1 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, midnight 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Jan. 14, 2020, 11 p.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Jan. 14, 2020, 10 p.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A N/A 2.0 μg/m3 (8) 26.0
 
Jan. 14, 2020, 9 p.m. 3.0 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
Jan. 14, 2020, 8 p.m. 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2020, 7 p.m. 10.6 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2020, 6 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2020, 5 p.m. 5.9 ppb (5) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 14, 2020, 4 p.m. 12.5 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2020, 3 p.m. 10.7 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A 10.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2020, 2 p.m. 4.7 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2020, 1 p.m. 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2020, noon 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 14, 2020, 11 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. 14, 2020, 10 a.m. 4.6 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) N/A N/A 13.0 μg/m3 (52) 52.0