AQSQID: 060470003

Site Name: Merced - S. Coffee Ave

Location: Merced, CA

Reporting: True, Located: True

Current AQI: 12.0

Merced CA, US: 37.2817, -120.433601

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 16, 2019, 2 p.m. 6.9 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 1 p.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) N/A N/A 0.0 μg/m3 (0) 9.0
 
Sept. 16, 2019, noon 7.4 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A 1.0 μg/m3 (4) 8.0
 
Sept. 16, 2019, 11 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
 
Sept. 16, 2019, 10 a.m. 8.2 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 9 a.m. 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) N/A N/A 2.0 μg/m3 (8) 9.0
 
Sept. 16, 2019, 8 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (14) N/A N/A 0.0 μg/m3 (0) 14.0
 
Sept. 16, 2019, 7 a.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A -3.0 μg/m3 (0) 16.0
 
Sept. 16, 2019, 6 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) N/A N/A 2.0 μg/m3 (8) 18.0
 
Sept. 16, 2019, 5 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 4 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 3 a.m. 1.6 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Sept. 16, 2019, 2 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 3.0 μg/m3 (12) 35.0
 
Sept. 16, 2019, 1 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) N/A N/A 4.0 μg/m3 (17) 41.0
 
Sept. 16, 2019, midnight 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) N/A N/A 2.0 μg/m3 (8) 42.0
 
Sept. 15, 2019, 11 p.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 60.0 ppb (46) N/A N/A 3.0 μg/m3 (12) 46.0
 
Sept. 15, 2019, 10 p.m. 3.1 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (47) N/A N/A 6.0 μg/m3 (25) 47.0
 
Sept. 15, 2019, 9 p.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (48) N/A N/A 7.0 μg/m3 (29) 48.0
 
Sept. 15, 2019, 8 p.m. 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) N/A N/A 2.0 μg/m3 (8) 44.0
 
Sept. 15, 2019, 7 p.m. 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 3.0 μg/m3 (12) 38.0
 
Sept. 15, 2019, 6 p.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
Sept. 15, 2019, 5 p.m. 4.8 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
Sept. 15, 2019, 4 p.m. 5.1 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
Sept. 15, 2019, 3 p.m. 15.9 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 2 p.m. 22.3 ppb (21) 8.5 ppb (8) N/A 14.0 ppb (13) N/A N/A 4.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2019, 1 p.m. 12.1 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 5.0 ppb (4) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 15, 2019, noon 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 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
 
Sept. 15, 2019, 10 a.m. 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 9 a.m. 6.6 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 8 a.m. 5.9 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2019, 7 a.m. 5.6 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 15, 2019, 6 a.m. 15.9 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A N/A 24.0 ppb (18) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 15, 2019, 5 a.m. 17.4 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 21.0 ppb (16) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 15, 2019, 4 a.m. 10.7 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 15, 2019, 3 a.m. 9.4 ppb (9) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 46.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
Sept. 15, 2019, 2 a.m. 5.6 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 56.0 ppb (43) N/A N/A 9.0 μg/m3 (38) 43.0
 
Sept. 15, 2019, 1 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (52) N/A N/A 8.0 μg/m3 (33) 52.0
 
Sept. 15, 2019, midnight 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 72.0 ppb (56) N/A N/A 6.0 μg/m3 (25) 56.0
 
Sept. 14, 2019, 11 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 71.0 ppb (55) N/A N/A 7.0 μg/m3 (29) 55.0
 
Sept. 14, 2019, 10 p.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 72.0 ppb (56) N/A N/A 6.0 μg/m3 (25) 56.0
 
Sept. 14, 2019, 9 p.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 76.0 ppb (59) N/A N/A 7.0 μg/m3 (29) 59.0
 
Sept. 14, 2019, 8 p.m. 3.1 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 74.0 ppb (57) N/A N/A 4.0 μg/m3 (17) 57.0
 
Sept. 14, 2019, 7 p.m. 5.2 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 77.0 ppb (60) N/A N/A 15.0 μg/m3 (56) 60.0
 
Sept. 14, 2019, 6 p.m. 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 72.0 ppb (56) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 14, 2019, 5 p.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 60.0 ppb (46) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 14, 2019, 4 p.m. 10.0 ppb (9) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 40.0 ppb (31) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 14, 2019, 3 p.m. 8.9 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 14, 2019, 2 p.m. 11.7 ppb (11) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 1 p.m. 13.3 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, noon 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
 
Sept. 14, 2019, 11 a.m. 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
 
Sept. 14, 2019, 10 a.m. 11.7 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 15.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 9 a.m. 15.2 ppb (14) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 14, 2019, 8 a.m. 20.1 ppb (19) 1.1 ppb (1) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (5) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 7 a.m. 32.2 ppb (30) 1.1 ppb (1) N/A 31.0 ppb (29) N/A N/A 6.0 ppb (5) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 14, 2019, 6 a.m. 33.8 ppb (31) 0.2 ppb (0) N/A 34.0 ppb (31) N/A N/A 12.0 ppb (9) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 14, 2019, 5 a.m. 15.2 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 26.0 ppb (20) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 14, 2019, 4 a.m. 10.3 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 3 a.m. 5.3 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (43) N/A N/A 8.0 μg/m3 (33) 43.0
 
Sept. 14, 2019, 2 a.m. 5.1 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 66.0 ppb (51) N/A N/A 12.0 μg/m3 (50) 51.0
 
Sept. 14, 2019, 1 a.m. 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 66.0 ppb (51) N/A N/A 7.0 μg/m3 (29) 51.0
 
Sept. 14, 2019, midnight 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (50) N/A N/A 6.0 μg/m3 (25) 50.0
 
Sept. 13, 2019, 11 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (52) N/A N/A 6.0 μg/m3 (25) 52.0
 
Sept. 13, 2019, 10 p.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 71.0 ppb (55) N/A N/A 5.0 μg/m3 (21) 55.0
 
Sept. 13, 2019, 9 p.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (57) N/A N/A 7.0 μg/m3 (29) 57.0
 
Sept. 13, 2019, 8 p.m. 3.8 ppb (4) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 64.0 ppb (49) N/A N/A 8.0 μg/m3 (33) 49.0
 
Sept. 13, 2019, 7 p.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2019, 6 p.m. 6.3 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (42) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 13, 2019, 5 p.m. 10.4 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 45.0 ppb (35) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 13, 2019, 4 p.m. 7.0 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (29) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 13, 2019, 3 p.m. 16.7 ppb (15) 4.9 ppb (5) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2019, 2 p.m. 31.1 ppb (29) 15.5 ppb (14) N/A 16.0 ppb (15) N/A N/A 3.0 ppb (2) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 13, 2019, 1 p.m. 32.0 ppb (30) 16.9 ppb (16) N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 13, 2019, noon 30.0 ppb (28) 13.0 ppb (12) N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2019, 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
 
Sept. 13, 2019, 10 a.m. 20.3 ppb (19) 2.5 ppb (2) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 13, 2019, 9 a.m. 14.8 ppb (14) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 10.0 ppb (8) N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 13, 2019, 8 a.m. 13.8 ppb (13) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 12.0 ppb (9) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 13, 2019, 7 a.m. 14.7 ppb (14) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 13, 2019, 6 a.m. 10.1 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 13, 2019, 5 a.m. 10.9 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 37.0 ppb (28) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 13, 2019, 4 a.m. 9.6 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 44.0 ppb (34) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 13, 2019, 3 a.m. 7.7 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 50.0 ppb (38) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 13, 2019, 2 a.m. 6.9 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 52.0 ppb (40) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 13, 2019, 1 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A N/A 7.0 μg/m3 (29) 48.0
 
Sept. 13, 2019, midnight 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (50) N/A N/A 9.0 μg/m3 (38) 50.0
 
Sept. 12, 2019, 11 p.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (48) N/A N/A 10.0 μg/m3 (42) 48.0
 
Sept. 12, 2019, 10 p.m. 3.6 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 64.0 ppb (49) N/A N/A 7.0 μg/m3 (29) 49.0
 
Sept. 12, 2019, 9 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (49) N/A N/A 9.0 μg/m3 (38) 49.0
 
Sept. 12, 2019, 8 p.m. 5.8 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 62.0 ppb (48) N/A N/A 10.0 μg/m3 (42) 48.0
 
Sept. 12, 2019, 7 p.m. 5.4 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
Sept. 12, 2019, 6 p.m. 6.2 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) N/A N/A 8.0 μg/m3 (33) 38.0
 
Sept. 12, 2019, 5 p.m. 14.8 ppb (14) 4.2 ppb (4) N/A 11.0 ppb (10) N/A N/A 37.0 ppb (28) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2019, 4 p.m. 16.7 ppb (15) 4.3 ppb (4) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) N/A N/A 14.0 μg/m3 (54) 54.0
 
Sept. 12, 2019, 3 p.m. 29.2 ppb (27) 12.6 ppb (12) N/A 17.0 ppb (16) N/A N/A 12.0 ppb (9) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 12, 2019, 2 p.m. 31.7 ppb (29) 15.9 ppb (15) N/A 16.0 ppb (15) N/A N/A 4.0 ppb (3) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 12, 2019, 1 p.m. 19.6 ppb (18) 6.6 ppb (6) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 12, 2019, noon 22.1 ppb (20) 6.9 ppb (6) N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 12, 2019, 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
 
Sept. 12, 2019, 10 a.m. 16.6 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A N/A 2.0 ppb (2) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 12, 2019, 9 a.m. 19.6 ppb (18) 3.3 ppb (3) N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 12, 2019, 8 a.m. 32.8 ppb (30) 10.2 ppb (9) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 12, 2019, 7 a.m. 10.2 ppb (9) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 12, 2019, 6 a.m. 11.5 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 19.0 ppb (15) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 12, 2019, 5 a.m. 14.1 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 17.0 ppb (13) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 12, 2019, 4 a.m. 10.6 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Sept. 12, 2019, 3 a.m. 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A N/A 7.0 μg/m3 (29) 33.0
 
Sept. 12, 2019, 2 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (39) N/A N/A 8.0 μg/m3 (33) 39.0
 
Sept. 12, 2019, 1 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
Sept. 12, 2019, midnight 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Sept. 11, 2019, 11 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) N/A N/A 8.0 μg/m3 (33) 41.0
 
Sept. 11, 2019, 10 p.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
Sept. 11, 2019, 9 p.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) N/A N/A 7.0 μg/m3 (29) 40.0
 
Sept. 11, 2019, 8 p.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 11, 2019, 7 p.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
Sept. 11, 2019, 6 p.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 11, 2019, 5 p.m. 7.0 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 11, 2019, 4 p.m. 7.4 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 11, 2019, 3 p.m. 17.8 ppb (16) 7.1 ppb (7) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 11, 2019, 2 p.m. 21.6 ppb (20) 8.4 ppb (8) N/A 13.0 ppb (12) N/A N/A 4.0 ppb (3) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2019, 1 p.m. 16.0 ppb (15) 1.7 ppb (2) N/A 14.0 ppb (13) N/A N/A 3.0 ppb (2) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2019, noon 11.1 ppb (10) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 7.0 ppb (5) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 11, 2019, 11 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
 
Sept. 11, 2019, 10 a.m. 11.5 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 11, 2019, 9 a.m. 7.8 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2019, 8 a.m. 8.9 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 11, 2019, 7 a.m. 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2019, 6 a.m. 4.4 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Sept. 11, 2019, 5 a.m. 7.0 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2019, 4 a.m. 8.8 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 11, 2019, 3 a.m. 5.3 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 11, 2019, 2 a.m. 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A N/A 7.0 μg/m3 (29) 33.0
 
Sept. 11, 2019, 1 a.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A N/A 7.0 μg/m3 (29) 37.0
 
Sept. 11, 2019, midnight 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
Sept. 10, 2019, 11 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A N/A 3.0 μg/m3 (12) 37.0
 
Sept. 10, 2019, 10 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 3.0 μg/m3 (12) 35.0
 
Sept. 10, 2019, 9 p.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
Sept. 10, 2019, 8 p.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
Sept. 10, 2019, 7 p.m. 2.5 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
Sept. 10, 2019, 6 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 3.0 μg/m3 (12) 31.0
 
Sept. 10, 2019, 5 p.m. 4.3 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 10, 2019, 4 p.m. 3.5 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 10, 2019, 3 p.m. 9.6 ppb (9) 2.6 ppb (2) 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
 
Sept. 10, 2019, 2 p.m. 15.7 ppb (15) 2.9 ppb (3) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 10, 2019, 1 p.m. 13.0 ppb (12) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 10, 2019, noon 9.3 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 10, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 10, 2019, 10 a.m. 7.4 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) N/A N/A 3.0 μg/m3 (12) 14.0
 
Sept. 10, 2019, 9 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 10, 2019, 8 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Sept. 10, 2019, 7 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Sept. 10, 2019, 6 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 10, 2019, 5 a.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A 4.0 μg/m3 (17) 20.0
 
Sept. 10, 2019, 4 a.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Sept. 10, 2019, 3 a.m. 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 10, 2019, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) N/A N/A 8.0 μg/m3 (33) 38.0
 
Sept. 10, 2019, 1 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A N/A 8.0 μg/m3 (33) 37.0
 
Sept. 10, 2019, midnight 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
Sept. 9, 2019, 11 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
Sept. 9, 2019, 10 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 3.0 μg/m3 (12) 35.0
 
Sept. 9, 2019, 9 p.m. 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 3.0 μg/m3 (12) 33.0
 
Sept. 9, 2019, 8 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
Sept. 9, 2019, 7 p.m. 4.3 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 9, 2019, 6 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Sept. 9, 2019, 5 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
Sept. 9, 2019, 4 p.m. 4.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A N/A 4.0 μg/m3 (17) 20.0
 
Sept. 9, 2019, 3 p.m. 16.4 ppb (15) 6.9 ppb (6) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) N/A N/A 6.0 μg/m3 (25) 25.0