AQSQID: 040278011

Site Name: Yuma Supersite

Location: Yuma, AZ

Reporting: True, Located: True

Current AQI: 38.0

Yuma AZ, US: 32.690277, -114.614441

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
March 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 28.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 36.0 μg/m3 (33) 7.0 μg/m3 (29) 33.0
 
March 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 24.0 μg/m3 (22) 7.0 μg/m3 (29) 29.0
 
March 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
March 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 23.0 μg/m3 (21) 5.0 μg/m3 (21) 31.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 28.0 μg/m3 (25) 6.0 μg/m3 (25) 34.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 22.0 μg/m3 (20) 7.0 μg/m3 (29) 38.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 33.0 μg/m3 (30) 6.0 μg/m3 (25) 37.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 44.0 μg/m3 (40) 8.0 μg/m3 (33) 42.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (51) N/A 30.0 μg/m3 (27) 4.0 μg/m3 (17) 51.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A N/A 66.0 ppb (51) N/A 17.0 μg/m3 (15) 1.0 μg/m3 (4) 51.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A 18.0 μg/m3 (16) 4.0 μg/m3 (17) 50.0
 
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A 25.0 μg/m3 (23) 6.0 μg/m3 (25) 50.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A 28.0 μg/m3 (25) 6.0 μg/m3 (25) 50.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 20.0 μg/m3 (18) 4.0 μg/m3 (17) 47.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 45.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 20.0 μg/m3 (18) 7.0 μg/m3 (29) 43.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 38.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 33.0 μg/m3 (30) 12.0 μg/m3 (50) 50.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 42.0 μg/m3 (38) 12.0 μg/m3 (50) 50.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 88.0 μg/m3 (66) 21.0 μg/m3 (69) 69.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 72.0 μg/m3 (58) 20.0 μg/m3 (67) 67.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 58.0 μg/m3 (52) 22.0 μg/m3 (71) 71.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 42.0 μg/m3 (38) 15.0 μg/m3 (56) 56.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 24.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 34.0 μg/m3 (31) 14.0 μg/m3 (54) 54.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 46.0 μg/m3 (42) 18.0 μg/m3 (63) 63.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 36.0 μg/m3 (33) 17.0 μg/m3 (61) 61.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 46.0 μg/m3 (42) 19.0 μg/m3 (65) 65.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 36.0 μg/m3 (33) 9.0 μg/m3 (38) 38.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 35.0 μg/m3 (32) 4.0 μg/m3 (17) 32.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 31.0 μg/m3 (28) 3.0 μg/m3 (12) 32.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 29.0 μg/m3 (26) 4.0 μg/m3 (17) 35.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 42.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 30.0 μg/m3 (27) 3.0 μg/m3 (12) 44.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 45.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 45.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 45.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 43.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 42.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 38.0 μg/m3 (35) 5.0 μg/m3 (21) 40.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 22.0 μg/m3 (20) 7.0 μg/m3 (29) 38.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 25.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 28.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 34.0 μg/m3 (31) 8.0 μg/m3 (33) 33.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 29.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 31.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 28.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 31.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 32.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 33.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 33.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 32.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 32.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 42.0 μg/m3 (38) 8.0 μg/m3 (33) 38.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (56) 7.0 μg/m3 (29) 56.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 29.0 μg/m3 (26) 7.0 μg/m3 (29) 38.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 33.0 μg/m3 (30) 8.0 μg/m3 (33) 40.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 30.0 μg/m3 (27) 6.0 μg/m3 (25) 39.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 25.0 μg/m3 (23) 4.0 μg/m3 (17) 40.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 27.0 μg/m3 (25) 4.0 μg/m3 (17) 40.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 19.0 μg/m3 (17) 4.0 μg/m3 (17) 39.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 39.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 22.0 μg/m3 (20) 6.0 μg/m3 (25) 39.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 33.0 μg/m3 (30) 8.0 μg/m3 (33) 38.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 39.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 24.0 μg/m3 (22) 3.0 μg/m3 (12) 35.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 32.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 28.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 32.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 33.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 36.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 37.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 35.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 35.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 64.0 μg/m3 (54) 14.0 μg/m3 (54) 54.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 25.0 μg/m3 (23) 7.0 μg/m3 (29) 36.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 41.0 μg/m3 (37) 12.0 μg/m3 (50) 50.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 196.0 μg/m3 (120) 20.0 μg/m3 (67) 120.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 30.0 μg/m3 (27) 6.0 μg/m3 (25) 37.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 37.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 37.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 36.0 μg/m3 (33) 10.0 μg/m3 (42) 42.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 41.0 μg/m3 (37) 7.0 μg/m3 (29) 38.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 24.0 μg/m3 (22) 9.0 μg/m3 (38) 40.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 46.0 μg/m3 (42) 13.0 μg/m3 (52) 52.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 51.0 μg/m3 (46) 6.0 μg/m3 (25) 46.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 48.0 μg/m3 (44) 7.0 μg/m3 (29) 44.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 64.0 μg/m3 (54) 9.0 μg/m3 (38) 54.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 74.0 μg/m3 (60) 6.0 μg/m3 (25) 60.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 29.0 μg/m3 (26) 6.0 μg/m3 (25) 32.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 32.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 44.0 μg/m3 (40) 8.0 μg/m3 (33) 40.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 25.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 28.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 27.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 30.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 32.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 32.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 30.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 17.0 μg/m3 (15) 3.0 μg/m3 (12) 28.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 30.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 35.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 37.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 38.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 18.0 μg/m3 (16) 4.0 μg/m3 (17) 38.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 39.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 42.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 33.0 μg/m3 (30) 5.0 μg/m3 (21) 42.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 39.0 μg/m3 (35) 6.0 μg/m3 (25) 37.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 52.0 μg/m3 (47) 7.0 μg/m3 (29) 47.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 59.0 μg/m3 (52) 9.0 μg/m3 (38) 52.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 51.0 μg/m3 (46) 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 53.0 μg/m3 (48) 10.0 μg/m3 (42) 48.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 51.0 μg/m3 (46) 17.0 μg/m3 (61) 61.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 46.0 μg/m3 (42) 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 47.0 μg/m3 (43) 17.0 μg/m3 (61) 61.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 47.0 μg/m3 (43) 20.0 μg/m3 (67) 67.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 33.0 μg/m3 (30) 28.0 μg/m3 (84) 84.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 23.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 47.0 μg/m3 (43) 22.0 μg/m3 (71) 71.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 75.0 μg/m3 (60) 27.0 μg/m3 (82) 82.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 35.0 μg/m3 (32) 10.0 μg/m3 (42) 42.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 51.0 μg/m3 (46) 9.0 μg/m3 (38) 46.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 50.0 μg/m3 (45) 16.0 μg/m3 (59) 59.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 44.0 μg/m3 (40) 13.0 μg/m3 (52) 52.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 28.0 μg/m3 (25) 9.0 μg/m3 (38) 45.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 27.0 μg/m3 (25) 6.0 μg/m3 (25) 47.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 42.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 42.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 19.0 μg/m3 (17) 4.0 μg/m3 (17) 39.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 39.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 27.0 μg/m3 (25) 5.0 μg/m3 (21) 40.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 29.0 μg/m3 (26) 5.0 μg/m3 (21) 38.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 41.0 μg/m3 (37) 5.0 μg/m3 (21) 37.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 36.0 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 81.0 μg/m3 (63) 7.0 μg/m3 (29) 63.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 42.0 μg/m3 (38) 7.0 μg/m3 (29) 38.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 35.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 70.0 μg/m3 (58) 6.0 μg/m3 (25) 58.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 53.0 μg/m3 (48) 11.0 μg/m3 (46) 48.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 24.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 22.0 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 36.0 μg/m3 (33) 8.0 μg/m3 (33) 33.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 41.0 μg/m3 (37) 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 41.0 μg/m3 (37) 12.0 μg/m3 (50) 50.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 40.0 μg/m3 (36) 8.0 μg/m3 (33) 36.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 34.0 μg/m3 (31) 7.0 μg/m3 (29) 31.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 36.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 39.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 39.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 39.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 38.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 38.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 36.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 35.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 32.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 28.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0