AQSQID: 060990006

Site Name: Turlock - S. Minaret Street

Location: Turlock, CA

Reporting: True, Located: True

Current AQI: 22.0

Turlock CA, US: 37.4883, -120.8358

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 26, 2019, 2 p.m. 4.9 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
March 26, 2019, 1 p.m. 3.6 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
March 26, 2019, noon 5.2 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
March 26, 2019, 11 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
 
March 26, 2019, 10 a.m. 5.6 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) N/A N/A 1.0 μg/m3 (4) 13.0
 
March 26, 2019, 9 a.m. 2.7 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A 2.0 μg/m3 (8) 18.0
 
March 26, 2019, 8 a.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A N/A 2.0 μg/m3 (8) 18.0
 
March 26, 2019, 7 a.m. 2.3 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
March 26, 2019, 6 a.m. 2.2 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 26, 2019, 5 a.m. 2.5 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
March 26, 2019, 4 a.m. 3.1 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 26, 2019, 3 a.m. 8.9 ppb (8) -0.4 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
 
March 26, 2019, 2 a.m. 11.3 ppb (10) -0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 30.0 ppb (23) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 26, 2019, 1 a.m. 3.6 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 26, 2019, midnight 2.2 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
March 25, 2019, 11 p.m. 2.6 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
March 25, 2019, 10 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
 
March 25, 2019, 9 p.m. 2.9 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
March 25, 2019, 8 p.m. 3.4 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 25, 2019, 7 p.m. 4.2 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 25, 2019, 6 p.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A N/A 19.0 μg/m3 (65) 65.0
 
March 25, 2019, 5 p.m. 7.2 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) N/A N/A 17.0 μg/m3 (61) 61.0
 
March 25, 2019, 4 p.m. 12.8 ppb (12) 3.8 ppb (4) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A N/A 14.0 μg/m3 (54) 54.0
 
March 25, 2019, 3 p.m. 11.5 ppb (11) 2.8 ppb (3) N/A 9.0 ppb (8) N/A N/A 12.0 ppb (9) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 25, 2019, 2 p.m. 26.7 ppb (25) 11.9 ppb (11) N/A 15.0 ppb (14) N/A N/A 6.0 ppb (5) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2019, 1 p.m. 16.8 ppb (16) 4.3 ppb (4) N/A 13.0 ppb (12) N/A N/A 3.0 ppb (2) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2019, noon 18.2 ppb (17) 3.5 ppb (3) N/A 15.0 ppb (14) N/A N/A 2.0 ppb (2) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 25, 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
 
March 25, 2019, 10 a.m. 4.7 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2019, 9 a.m. 5.9 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 7.0 ppb (5) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2019, 8 a.m. 8.2 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 5.0 ppb (4) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 25, 2019, 7 a.m. 13.8 ppb (13) 1.4 ppb (1) N/A 12.0 ppb (11) N/A N/A 3.0 ppb (2) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 25, 2019, 6 a.m. 22.6 ppb (21) 2.7 ppb (3) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A N/A 20.0 μg/m3 (67) 67.0
 
March 25, 2019, 5 a.m. 18.3 ppb (17) 0.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (5) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 25, 2019, 4 a.m. 9.5 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A N/A 17.0 μg/m3 (61) 61.0
 
March 25, 2019, 3 a.m. 10.1 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 25, 2019, 2 a.m. 6.7 ppb (6) -0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 25, 2019, 1 a.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 25, 2019, midnight 2.8 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A N/A 7.0 μg/m3 (29) 35.0
 
March 24, 2019, 11 p.m. 2.3 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
March 24, 2019, 10 p.m. 2.4 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A N/A 7.0 μg/m3 (29) 36.0
 
March 24, 2019, 9 p.m. 2.9 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 24, 2019, 8 p.m. 2.4 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 24, 2019, 7 p.m. 3.7 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2019, 6 p.m. 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 5 p.m. 8.9 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 4 p.m. 8.8 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 24, 2019, 3 p.m. 10.8 ppb (10) 2.4 ppb (2) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 2 p.m. 12.4 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2019, 1 p.m. 16.6 ppb (15) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 5.0 ppb (4) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 24, 2019, noon 13.8 ppb (13) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 5.0 ppb (4) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 24, 2019, 11 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
 
March 24, 2019, 10 a.m. 6.4 ppb (6) -0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 9 a.m. 5.8 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 24, 2019, 8 a.m. 4.1 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 7 a.m. 4.6 ppb (4) -0.3 ppb (0) 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
 
March 24, 2019, 6 a.m. 5.4 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 24, 2019, 5 a.m. 4.3 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 24, 2019, 4 a.m. 4.3 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
March 24, 2019, 3 a.m. 4.8 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 2 a.m. 3.6 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
March 24, 2019, 1 a.m. 2.7 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2019, midnight 2.3 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 23, 2019, 11 p.m. 2.7 ppb (3) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 23, 2019, 10 p.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 23, 2019, 9 p.m. 2.8 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 23, 2019, 8 p.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 23, 2019, 7 p.m. 3.8 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 23, 2019, 6 p.m. 5.0 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) N/A N/A 19.0 μg/m3 (65) 65.0
 
March 23, 2019, 5 p.m. 4.7 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 23, 2019, 4 p.m. 3.9 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 23, 2019, 3 p.m. 4.4 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 23, 2019, 2 p.m. 3.7 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
March 23, 2019, 1 p.m. 2.4 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
March 23, 2019, noon 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
 
March 23, 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
 
March 23, 2019, 3 a.m. 5.1 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
March 23, 2019, 2 a.m. 4.6 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) N/A N/A 3.0 μg/m3 (12) 23.0
 
March 23, 2019, 1 a.m. 2.7 ppb (3) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A 1.0 μg/m3 (4) 25.0
 
March 23, 2019, midnight 2.4 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
March 22, 2019, 11 p.m. 2.5 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
March 22, 2019, 10 p.m. 2.3 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
March 22, 2019, 9 p.m. 2.6 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) N/A N/A 2.0 μg/m3 (8) 30.0
 
March 22, 2019, 8 p.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
March 22, 2019, 7 p.m. 4.5 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 6 p.m. 9.3 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 5 p.m. 14.6 ppb (14) 3.3 ppb (3) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 22, 2019, 4 p.m. 20.7 ppb (19) 6.6 ppb (6) N/A 14.0 ppb (13) N/A N/A 13.0 ppb (10) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 3 p.m. 29.0 ppb (27) 11.1 ppb (10) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (5) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 22, 2019, 2 p.m. 24.1 ppb (22) 4.2 ppb (4) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (5) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 22, 2019, 1 p.m. 38.7 ppb (36) 15.4 ppb (14) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 22, 2019, noon 42.0 ppb (39) 15.7 ppb (15) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (38) 39.0
 
March 22, 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
 
March 22, 2019, 10 a.m. 7.7 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 9 a.m. 6.8 ppb (6) -0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 22, 2019, 8 a.m. 9.2 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 7 a.m. 8.5 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 6 a.m. 8.1 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 5 a.m. 8.4 ppb (8) -0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
March 22, 2019, 4 a.m. 11.4 ppb (11) -0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 28.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
March 22, 2019, 3 a.m. 8.4 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) N/A N/A 2.0 μg/m3 (8) 27.0
 
March 22, 2019, 2 a.m. 5.9 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
March 22, 2019, 1 a.m. 3.1 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
March 22, 2019, midnight 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 1.0 μg/m3 (4) 34.0
 
March 21, 2019, 11 p.m. 2.6 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 2.0 μg/m3 (8) 34.0
 
March 21, 2019, 10 p.m. 2.5 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
March 21, 2019, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
March 21, 2019, 8 p.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 7.0 μg/m3 (29) 32.0
 
March 21, 2019, 7 p.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 6 p.m. 8.3 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 5 p.m. 9.8 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 21, 2019, 4 p.m. 14.8 ppb (14) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 21, 2019, 3 p.m. 20.4 ppb (19) 5.3 ppb (5) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 21, 2019, 2 p.m. 33.8 ppb (31) 9.0 ppb (8) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) N/A N/A 5.0 μg/m3 (21) 31.0
 
March 21, 2019, 1 p.m. 36.9 ppb (34) 8.0 ppb (7) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (21) 34.0
 
March 21, 2019, noon 18.7 ppb (17) 2.7 ppb (3) N/A 16.0 ppb (15) N/A N/A 12.0 ppb (9) N/A N/A 3.0 μg/m3 (12) 17.0
 
March 21, 2019, 11 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
 
March 21, 2019, 10 a.m. 7.6 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 21, 2019, 9 a.m. 10.9 ppb (10) -0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, 8 a.m. 4.7 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
March 21, 2019, 7 a.m. 4.9 ppb (5) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
March 21, 2019, 6 a.m. 4.2 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
March 21, 2019, 5 a.m. 5.5 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
March 21, 2019, 4 a.m. 8.6 ppb (8) -0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
March 21, 2019, 3 a.m. 6.4 ppb (6) -0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
March 21, 2019, 2 a.m. 5.0 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
March 21, 2019, 1 a.m. 3.4 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
March 21, 2019, midnight 4.0 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 3.0 μg/m3 (12) 32.0
 
March 20, 2019, 11 p.m. 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
March 20, 2019, 10 p.m. 4.3 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
March 20, 2019, 9 p.m. 3.9 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
March 20, 2019, 8 p.m. 2.9 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0
 
March 20, 2019, 7 p.m. 2.9 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
March 20, 2019, 6 p.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A 2.0 μg/m3 (8) 27.0
 
March 20, 2019, 5 p.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
March 20, 2019, 4 p.m. 5.6 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A N/A 3.0 μg/m3 (12) 21.0
 
March 20, 2019, 3 p.m. 7.7 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) N/A N/A 1.0 μg/m3 (4) 18.0
 
March 20, 2019, 2 p.m. 10.1 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) N/A N/A 3.0 μg/m3 (12) 18.0
 
March 20, 2019, 1 p.m. 3.6 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 1.0 μg/m3 (4) 23.0
 
March 20, 2019, noon 3.7 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
March 20, 2019, 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
 
March 20, 2019, 10 a.m. 1.7 ppb (2) -0.3 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
 
March 20, 2019, 9 a.m. 1.2 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
March 20, 2019, 8 a.m. 2.0 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 20, 2019, 7 a.m. 2.7 ppb (3) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 20, 2019, 6 a.m. 2.6 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
March 20, 2019, 5 a.m. 2.5 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) N/A N/A 6.0 μg/m3 (25) 30.0
 
March 20, 2019, 4 a.m. 5.7 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
March 20, 2019, 3 a.m. 11.2 ppb (10) -0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) N/A N/A 17.0 μg/m3 (61) 61.0
 
March 20, 2019, 2 a.m. 17.9 ppb (17) -0.3 ppb (0) N/A 18.0 ppb (17) N/A N/A 29.0 ppb (22) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 20, 2019, 1 a.m. 14.3 ppb (13) -0.2 ppb (0) N/A 15.0 ppb (14) N/A N/A 35.0 ppb (27) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 20, 2019, midnight 7.7 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 42.0 ppb (32) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 19, 2019, 11 p.m. 5.0 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 19, 2019, 10 p.m. 5.1 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 19, 2019, 9 p.m. 6.2 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (35) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 19, 2019, 8 p.m. 11.7 ppb (11) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 36.0 ppb (28) N/A N/A 24.0 μg/m3 (76) 76.0
 
March 19, 2019, 7 p.m. 12.7 ppb (12) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A 30.0 ppb (23) N/A N/A 22.0 μg/m3 (71) 71.0
 
March 19, 2019, 6 p.m. 18.5 ppb (17) 5.0 ppb (5) N/A 14.0 ppb (13) N/A N/A 20.0 ppb (15) N/A N/A 18.0 μg/m3 (63) 63.0
 
March 19, 2019, 5 p.m. 32.4 ppb (30) 13.2 ppb (12) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (9) N/A N/A 25.0 μg/m3 (78) 78.0
 
March 19, 2019, 4 p.m. 47.4 ppb (44) 23.9 ppb (22) N/A 24.0 ppb (22) N/A N/A 6.0 ppb (5) N/A N/A 27.0 μg/m3 (82) 82.0
 
March 19, 2019, 3 p.m. 44.8 ppb (41) 26.6 ppb (25) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) N/A N/A 29.0 μg/m3 (86) 86.0
 
March 19, 2019, 2 p.m. 55.4 ppb (51) 37.4 ppb (35) N/A 18.0 ppb (17) N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (82) 82.0
 
March 19, 2019, 1 p.m. 50.1 ppb (46) 25.4 ppb (24) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (82) 82.0
 
March 19, 2019, noon 30.1 ppb (28) 9.4 ppb (9) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) N/A N/A 29.0 μg/m3 (86) 86.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (76) 76.0
 
March 19, 2019, 10 a.m. 13.1 ppb (12) -0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) N/A N/A 25.0 μg/m3 (78) 78.0
 
March 19, 2019, 9 a.m. 12.5 ppb (12) -0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) N/A N/A 20.0 μg/m3 (67) 67.0
 
March 19, 2019, 8 a.m. 10.5 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) N/A N/A 26.0 μg/m3 (80) 80.0