Air Lookout Data Browser: Millbrook NCore Station

ID: 642

AQSQID: 371830014

Site Name: Millbrook Ncore

Added: April 21, 2020, 6:24 p.m.

Updated: June 23, 2021, 8:52 p.m.

Location: Raleigh (Neast Raleigh), NC

Reporting: True, Located: True

Current AQI: 44.0

Raleigh (Neast Raleigh) NC, US: 35.856111, -78.574167

Date Observed (UTC)	NOX	NO	NOY	NO2	NO2Y	SO2	OZONE	CO	PM10	PM2.5	AQI
June 23, 2021, 7 p.m.	0.4 ppb (1)	-0.1 ppb (0)	N/A	0.0 ppb (0)	N/A	0.0 ppb (0)	47.0 ppb (44)	0.14 ppb (2)	12.0 μg/m³ (12)	7.6 μg/m³ (32)	44.0
June 23, 2021, 6 p.m.	0.7 ppb (1)	0.1 ppb (1)	N/A	1.0 ppb (1)	N/A	0.0 ppb (0)	45.0 ppb (42)	0.2 ppb (3)	13.0 μg/m³ (13)	7.8 μg/m³ (33)	42.0
June 23, 2021, 5 p.m.	0.5 ppb (1)	0.0 ppb (0)	N/A	1.0 ppb (1)	N/A	0.0 ppb (0)	44.0 ppb (41)	0.14 ppb (2)	12.0 μg/m³ (12)	7.6 μg/m³ (32)	41.0
June 23, 2021, 4 p.m.	0.4 ppb (1)	0.0 ppb (0)	1.5 ppb (2)	0.0 ppb (0)	N/A	0.0 ppb (0)	42.0 ppb (39)	0.14 ppb (2)	12.0 μg/m³ (12)	7.5 μg/m³ (32)	39.0
June 23, 2021, 3 p.m.	2.8 ppb (3)	1.3 ppb (2)	4.0 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	39.0 ppb (37)	0.14 ppb (2)	13.0 μg/m³ (13)	7.7 μg/m³ (33)	37.0
June 23, 2021, 2 p.m.	2.7 ppb (3)	1.3 ppb (2)	2.6 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	39.0 ppb (37)	0.17 ppb (3)	14.0 μg/m³ (13)	7.1 μg/m³ (30)	37.0
June 23, 2021, 1 p.m.	0.9 ppb (1)	0.1 ppb (1)	1.8 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	34.0 ppb (32)	0.14 ppb (2)	12.0 μg/m³ (12)	6.4 μg/m³ (27)	32.0
June 23, 2021, noon	1.8 ppb (2)	0.3 ppb (1)	2.5 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	27.0 ppb (25)	0.16 ppb (3)	11.0 μg/m³ (11)	6.0 μg/m³ (25)	25.0
June 23, 2021, 11 a.m.	3.6 ppb (4)	0.9 ppb (1)	4.0 ppb (4)	3.0 ppb (3)	N/A	0.0 ppb (0)	17.0 ppb (16)	0.18 ppb (3)	12.0 μg/m³ (12)	5.7 μg/m³ (24)	24.0
June 23, 2021, 10 a.m.	6.2 ppb (6)	1.3 ppb (2)	5.6 ppb (6)	5.0 ppb (5)	N/A	0.0 ppb (0)	10.0 ppb (10)	0.18 ppb (3)	13.0 μg/m³ (13)	5.8 μg/m³ (25)	25.0
June 23, 2021, 9 a.m.	2.9 ppb (3)	0.0 ppb (0)	N/A	3.0 ppb (3)	N/A	0.0 ppb (0)	10.0 ppb (10)	0.17 ppb (3)	14.0 μg/m³ (13)	5.8 μg/m³ (25)	25.0
June 23, 2021, 8 a.m.	2.5 ppb (3)	0.5 ppb (1)	2.9 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	N/A	0.16 ppb (3)	15.0 μg/m³ (14)	5.8 μg/m³ (25)	25.0
June 23, 2021, 7 a.m.	N/A	N/A	2.3 ppb (3)	N/A	N/A	0.0 ppb (0)	12.0 ppb (12)	0.16 ppb (3)	16.0 μg/m³ (15)	6.0 μg/m³ (25)	25.0
June 23, 2021, 6 a.m.	1.5 ppb (2)	-0.1 ppb (0)	2.6 ppb (3)	2.0 ppb (2)	N/A	N/A	12.0 ppb (12)	0.15 ppb (2)	12.0 μg/m³ (12)	5.6 μg/m³ (24)	24.0
June 23, 2021, 5 a.m.	0.7 ppb (1)	-0.2 ppb (0)	1.3 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	13.0 ppb (13)	N/A	14.0 μg/m³ (13)	5.7 μg/m³ (24)	24.0
June 23, 2021, 4 a.m.	1.1 ppb (2)	-0.2 ppb (0)	2.3 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	12.0 ppb (12)	0.15 ppb (2)	14.0 μg/m³ (13)	5.0 μg/m³ (21)	21.0
June 23, 2021, 3 a.m.	1.4 ppb (2)	-0.2 ppb (0)	2.1 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	15.0 ppb (14)	0.16 ppb (3)	11.0 μg/m³ (11)	4.5 μg/m³ (19)	19.0
June 23, 2021, 2 a.m.	3.0 ppb (3)	0.0 ppb (0)	3.9 ppb (4)	3.0 ppb (3)	N/A	0.0 ppb (0)	13.0 ppb (13)	0.2 ppb (3)	12.0 μg/m³ (12)	4.0 μg/m³ (17)	17.0
June 23, 2021, 1 a.m.	2.1 ppb (2)	-0.2 ppb (0)	2.8 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	21.0 ppb (20)	0.16 ppb (3)	7.0 μg/m³ (7)	3.3 μg/m³ (14)	20.0
June 23, 2021, midnight	1.7 ppb (2)	-0.2 ppb (0)	2.3 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	23.0 ppb (22)	0.17 ppb (3)	8.0 μg/m³ (8)	3.4 μg/m³ (15)	22.0
June 22, 2021, 11 p.m.	1.6 ppb (2)	-0.1 ppb (0)	2.2 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	27.0 ppb (25)	0.15 ppb (2)	7.0 μg/m³ (7)	3.2 μg/m³ (14)	25.0
June 22, 2021, 10 p.m.	2.3 ppb (3)	0.0 ppb (0)	3.1 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	31.0 ppb (29)	0.16 ppb (3)	7.0 μg/m³ (7)	3.0 μg/m³ (13)	29.0
June 22, 2021, 9 p.m.	1.8 ppb (2)	0.0 ppb (0)	2.7 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	32.0 ppb (30)	0.15 ppb (2)	11.0 μg/m³ (11)	4.2 μg/m³ (18)	30.0
June 22, 2021, 8 p.m.	1.7 ppb (2)	0.0 ppb (0)	2.3 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	38.0 ppb (36)	0.16 ppb (3)	11.0 μg/m³ (11)	5.2 μg/m³ (22)	36.0
June 22, 2021, 7 p.m.	1.6 ppb (2)	0.0 ppb (0)	2.0 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	41.0 ppb (38)	0.14 ppb (2)	8.0 μg/m³ (8)	4.3 μg/m³ (18)	38.0
June 22, 2021, 6 p.m.	1.4 ppb (2)	-0.2 ppb (0)	1.9 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	36.0 ppb (34)	0.13 ppb (2)	7.0 μg/m³ (7)	3.2 μg/m³ (14)	34.0
June 22, 2021, 5 p.m.	2.2 ppb (3)	0.2 ppb (1)	2.7 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	25.0 ppb (24)	0.14 ppb (2)	11.0 μg/m³ (11)	4.7 μg/m³ (20)	24.0
June 22, 2021, 4 p.m.	3.7 ppb (4)	1.3 ppb (2)	4.0 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	19.0 ppb (18)	0.16 ppb (3)	11.0 μg/m³ (11)	6.1 μg/m³ (26)	26.0
June 22, 2021, 3 p.m.	4.4 ppb (5)	1.5 ppb (2)	4.8 ppb (5)	3.0 ppb (3)	N/A	0.0 ppb (0)	15.0 ppb (14)	0.17 ppb (3)	14.0 μg/m³ (13)	6.7 μg/m³ (28)	28.0
June 22, 2021, 2 p.m.	2.9 ppb (3)	0.7 ppb (1)	3.6 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	18.0 ppb (17)	0.15 ppb (2)	14.0 μg/m³ (13)	6.7 μg/m³ (28)	28.0
June 22, 2021, 1 p.m.	2.9 ppb (3)	0.7 ppb (1)	3.4 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	17.0 ppb (16)	0.15 ppb (2)	13.0 μg/m³ (13)	6.5 μg/m³ (28)	28.0
June 22, 2021, noon	3.3 ppb (4)	0.6 ppb (1)	3.8 ppb (4)	3.0 ppb (3)	N/A	0.0 ppb (0)	16.0 ppb (15)	0.15 ppb (2)	14.0 μg/m³ (13)	6.6 μg/m³ (28)	28.0
June 22, 2021, 11 a.m.	2.7 ppb (3)	0.2 ppb (1)	3.1 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	17.0 ppb (16)	0.14 ppb (2)	15.0 μg/m³ (14)	6.2 μg/m³ (26)	26.0
June 22, 2021, 10 a.m.	1.5 ppb (2)	0.0 ppb (0)	1.9 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	19.0 ppb (18)	0.12 ppb (2)	12.0 μg/m³ (12)	5.9 μg/m³ (25)	25.0
June 22, 2021, 9 a.m.	0.8 ppb (1)	-0.2 ppb (0)	N/A	1.0 ppb (1)	N/A	0.0 ppb (0)	20.0 ppb (19)	0.12 ppb (2)	12.0 μg/m³ (12)	6.0 μg/m³ (25)	25.0
June 22, 2021, 8 a.m.	1.9 ppb (2)	0.6 ppb (1)	1.9 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	N/A	0.13 ppb (2)	14.0 μg/m³ (13)	7.4 μg/m³ (31)	31.0
June 22, 2021, 7 a.m.	N/A	N/A	1.7 ppb (2)	N/A	N/A	0.0 ppb (0)	21.0 ppb (20)	0.13 ppb (2)	14.0 μg/m³ (13)	8.6 μg/m³ (36)	36.0
June 22, 2021, 6 a.m.	1.1 ppb (2)	-0.2 ppb (0)	1.8 ppb (2)	1.0 ppb (1)	N/A	N/A	23.0 ppb (22)	0.13 ppb (2)	14.0 μg/m³ (13)	9.4 μg/m³ (40)	40.0
June 22, 2021, 5 a.m.	1.5 ppb (2)	-0.2 ppb (0)	2.1 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	25.0 ppb (24)	N/A	15.0 μg/m³ (14)	9.4 μg/m³ (40)	40.0
June 22, 2021, 4 a.m.	1.2 ppb (2)	-0.1 ppb (0)	1.9 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	28.0 ppb (26)	0.16 ppb (3)	17.0 μg/m³ (16)	10.4 μg/m³ (44)	44.0
June 22, 2021, 3 a.m.	1.4 ppb (2)	-0.2 ppb (0)	2.2 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	29.0 ppb (27)	0.16 ppb (3)	17.0 μg/m³ (16)	11.2 μg/m³ (47)	47.0
June 22, 2021, 2 a.m.	1.8 ppb (2)	-0.1 ppb (0)	2.5 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	30.0 ppb (28)	0.18 ppb (3)	18.0 μg/m³ (17)	11.9 μg/m³ (50)	50.0
June 22, 2021, 1 a.m.	3.4 ppb (4)	-0.1 ppb (0)	4.3 ppb (5)	3.0 ppb (3)	N/A	0.0 ppb (0)	30.0 ppb (28)	0.22 ppb (3)	19.0 μg/m³ (18)	12.4 μg/m³ (52)	52.0
June 22, 2021, midnight	3.0 ppb (3)	0.0 ppb (0)	4.0 ppb (4)	3.0 ppb (3)	N/A	0.0 ppb (0)	33.0 ppb (31)	0.22 ppb (3)	20.0 μg/m³ (19)	11.9 μg/m³ (50)	50.0
June 21, 2021, 11 p.m.	1.9 ppb (2)	0.0 ppb (0)	3.2 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	35.0 ppb (33)	0.19 ppb (3)	21.0 μg/m³ (20)	11.2 μg/m³ (47)	47.0
June 21, 2021, 10 p.m.	1.5 ppb (2)	0.0 ppb (0)	2.7 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	39.0 ppb (37)	0.19 ppb (3)	19.0 μg/m³ (18)	10.8 μg/m³ (46)	46.0
June 21, 2021, 9 p.m.	2.3 ppb (3)	0.2 ppb (1)	3.5 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	40.0 ppb (38)	0.2 ppb (3)	19.0 μg/m³ (18)	11.1 μg/m³ (47)	47.0
June 21, 2021, 8 p.m.	1.7 ppb (2)	0.1 ppb (1)	2.9 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	41.0 ppb (38)	0.19 ppb (3)	18.0 μg/m³ (17)	10.9 μg/m³ (46)	46.0
June 21, 2021, 7 p.m.	1.3 ppb (2)	0.1 ppb (1)	2.5 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	38.0 ppb (36)	0.18 ppb (3)	18.0 μg/m³ (17)	10.1 μg/m³ (43)	43.0
June 21, 2021, 6 p.m.	1.3 ppb (2)	0.1 ppb (1)	2.7 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	38.0 ppb (36)	0.18 ppb (3)	18.0 μg/m³ (17)	9.7 μg/m³ (41)	41.0
June 21, 2021, 5 p.m.	1.2 ppb (2)	0.1 ppb (1)	2.7 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	37.0 ppb (35)	0.17 ppb (3)	17.0 μg/m³ (16)	9.4 μg/m³ (40)	40.0
June 21, 2021, 4 p.m.	1.4 ppb (2)	0.1 ppb (1)	2.7 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	37.0 ppb (35)	0.18 ppb (3)	16.0 μg/m³ (15)	9.0 μg/m³ (38)	38.0
June 21, 2021, 3 p.m.	1.7 ppb (2)	0.3 ppb (1)	3.0 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	32.0 ppb (30)	0.19 ppb (3)	15.0 μg/m³ (14)	8.0 μg/m³ (34)	34.0
June 21, 2021, 2 p.m.	2.1 ppb (2)	0.6 ppb (1)	3.2 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	27.0 ppb (25)	0.23 ppb (3)	13.0 μg/m³ (13)	6.9 μg/m³ (29)	29.0
June 21, 2021, 1 p.m.	2.6 ppb (3)	0.8 ppb (1)	3.4 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	21.0 ppb (20)	0.18 ppb (3)	12.0 μg/m³ (12)	6.1 μg/m³ (26)	26.0
June 21, 2021, noon	4.4 ppb (5)	1.6 ppb (2)	4.1 ppb (4)	3.0 ppb (3)	N/A	0.0 ppb (0)	16.0 ppb (15)	0.44 ppb (5)	15.0 μg/m³ (14)	7.3 μg/m³ (31)	31.0
June 21, 2021, 11 a.m.	4.5 ppb (5)	1.3 ppb (2)	4.7 ppb (5)	3.0 ppb (3)	N/A	0.0 ppb (0)	12.0 ppb (12)	0.19 ppb (3)	18.0 μg/m³ (17)	8.9 μg/m³ (38)	38.0
June 21, 2021, 10 a.m.	2.3 ppb (3)	0.0 ppb (0)	2.6 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	11.0 ppb (11)	0.14 ppb (2)	17.0 μg/m³ (16)	7.2 μg/m³ (31)	31.0
June 21, 2021, 9 a.m.	2.0 ppb (2)	-0.1 ppb (0)	N/A	2.0 ppb (2)	N/A	0.0 ppb (0)	11.0 ppb (11)	0.13 ppb (2)	15.0 μg/m³ (14)	4.9 μg/m³ (21)	21.0
June 21, 2021, 8 a.m.	2.5 ppb (3)	0.5 ppb (1)	2.4 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	N/A	0.14 ppb (2)	13.0 μg/m³ (13)	4.8 μg/m³ (20)	20.0
June 21, 2021, 7 a.m.	N/A	N/A	2.1 ppb (2)	N/A	N/A	0.0 ppb (0)	13.0 ppb (13)	0.16 ppb (3)	15.0 μg/m³ (14)	5.4 μg/m³ (23)	23.0
June 21, 2021, 6 a.m.	0.7 ppb (1)	-0.2 ppb (0)	1.2 ppb (2)	1.0 ppb (1)	N/A	N/A	14.0 ppb (13)	0.11 ppb (2)	16.0 μg/m³ (15)	6.2 μg/m³ (26)	26.0
June 21, 2021, 5 a.m.	1.0 ppb (1)	-0.1 ppb (0)	1.3 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	13.0 ppb (13)	N/A	21.0 μg/m³ (20)	9.0 μg/m³ (38)	38.0
June 21, 2021, 4 a.m.	1.9 ppb (2)	0.1 ppb (1)	2.2 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	10.0 ppb (10)	0.17 ppb (3)	20.0 μg/m³ (19)	8.6 μg/m³ (36)	36.0
June 21, 2021, 3 a.m.	1.5 ppb (2)	-0.2 ppb (0)	1.9 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	17.0 ppb (16)	0.14 ppb (2)	15.0 μg/m³ (14)	6.1 μg/m³ (26)	26.0
June 21, 2021, 2 a.m.	1.6 ppb (2)	-0.1 ppb (0)	2.0 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	17.0 ppb (16)	0.16 ppb (3)	14.0 μg/m³ (13)	6.2 μg/m³ (26)	26.0
June 21, 2021, 1 a.m.	4.8 ppb (5)	1.0 ppb (1)	4.7 ppb (5)	4.0 ppb (4)	N/A	0.0 ppb (0)	10.0 ppb (10)	0.23 ppb (3)	15.0 μg/m³ (14)	5.9 μg/m³ (25)	25.0
June 21, 2021, midnight	5.2 ppb (5)	1.5 ppb (2)	4.9 ppb (5)	4.0 ppb (4)	N/A	0.0 ppb (0)	10.0 ppb (10)	0.24 ppb (3)	14.0 μg/m³ (13)	5.5 μg/m³ (23)	23.0
June 20, 2021, 11 p.m.	4.1 ppb (4)	0.9 ppb (1)	4.6 ppb (5)	3.0 ppb (3)	N/A	0.0 ppb (0)	15.0 ppb (14)	0.24 ppb (3)	13.0 μg/m³ (13)	5.0 μg/m³ (21)	21.0
June 20, 2021, 10 p.m.	5.6 ppb (6)	1.3 ppb (2)	6.0 ppb (6)	4.0 ppb (4)	N/A	0.0 ppb (0)	16.0 ppb (15)	0.26 ppb (4)	11.0 μg/m³ (11)	4.7 μg/m³ (20)	20.0
June 20, 2021, 9 p.m.	6.1 ppb (6)	0.9 ppb (1)	6.2 ppb (6)	5.0 ppb (5)	N/A	0.0 ppb (0)	17.0 ppb (16)	0.25 ppb (3)	11.0 μg/m³ (11)	4.4 μg/m³ (19)	19.0
June 20, 2021, 8 p.m.	6.0 ppb (6)	0.9 ppb (1)	6.6 ppb (7)	5.0 ppb (5)	N/A	0.0 ppb (0)	22.0 ppb (21)	0.24 ppb (3)	12.0 μg/m³ (12)	3.9 μg/m³ (17)	21.0
June 20, 2021, 7 p.m.	2.5 ppb (3)	0.2 ppb (1)	3.0 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	28.0 ppb (26)	0.17 ppb (3)	20.0 μg/m³ (19)	7.8 μg/m³ (33)	33.0
June 20, 2021, 6 p.m.	1.3 ppb (2)	0.3 ppb (1)	2.6 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	29.0 ppb (27)	0.17 ppb (3)	27.0 μg/m³ (25)	13.6 μg/m³ (55)	55.0
June 20, 2021, 5 p.m.	1.7 ppb (2)	0.4 ppb (1)	2.5 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	23.0 ppb (22)	0.15 ppb (2)	20.0 μg/m³ (19)	10.0 μg/m³ (42)	42.0
June 20, 2021, 4 p.m.	1.6 ppb (2)	0.4 ppb (1)	2.1 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	20.0 ppb (19)	0.15 ppb (2)	10.0 μg/m³ (10)	4.5 μg/m³ (19)	19.0
June 20, 2021, 3 p.m.	2.7 ppb (3)	0.6 ppb (1)	2.9 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	16.0 ppb (15)	0.14 ppb (2)	10.0 μg/m³ (10)	4.8 μg/m³ (20)	20.0
June 20, 2021, 2 p.m.	2.9 ppb (3)	0.7 ppb (1)	3.2 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	14.0 ppb (13)	0.17 ppb (3)	20.0 μg/m³ (19)	8.8 μg/m³ (37)	37.0
June 20, 2021, 1 p.m.	2.0 ppb (2)	0.4 ppb (1)	2.4 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	17.0 ppb (16)	0.13 ppb (2)	23.0 μg/m³ (22)	10.3 μg/m³ (43)	43.0
June 20, 2021, noon	1.5 ppb (2)	0.3 ppb (1)	2.0 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	22.0 ppb (21)	0.13 ppb (2)	24.0 μg/m³ (23)	10.3 μg/m³ (43)	43.0
June 20, 2021, 11 a.m.	2.0 ppb (2)	0.2 ppb (1)	2.4 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	22.0 ppb (21)	0.12 ppb (2)	24.0 μg/m³ (23)	10.5 μg/m³ (44)	44.0
June 20, 2021, 10 a.m.	1.4 ppb (2)	-0.1 ppb (0)	1.8 ppb (2)	2.0 ppb (2)	N/A	0.0 ppb (0)	21.0 ppb (20)	0.12 ppb (2)	26.0 μg/m³ (25)	10.5 μg/m³ (44)	44.0
June 20, 2021, 9 a.m.	1.4 ppb (2)	-0.1 ppb (0)	N/A	2.0 ppb (2)	N/A	0.0 ppb (0)	20.0 ppb (19)	0.11 ppb (2)	25.0 μg/m³ (24)	10.5 μg/m³ (44)	44.0
June 20, 2021, 8 a.m.	1.6 ppb (2)	0.2 ppb (1)	1.9 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	N/A	0.12 ppb (2)	26.0 μg/m³ (25)	10.9 μg/m³ (46)	46.0
June 20, 2021, 7 a.m.	N/A	N/A	1.6 ppb (2)	N/A	N/A	0.0 ppb (0)	22.0 ppb (21)	0.12 ppb (2)	26.0 μg/m³ (25)	10.9 μg/m³ (46)	46.0
June 20, 2021, 6 a.m.	0.8 ppb (1)	-0.2 ppb (0)	1.4 ppb (2)	1.0 ppb (1)	N/A	N/A	22.0 ppb (21)	0.12 ppb (2)	27.0 μg/m³ (25)	11.0 μg/m³ (46)	46.0
June 20, 2021, 5 a.m.	0.7 ppb (1)	-0.2 ppb (0)	1.4 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	22.0 ppb (21)	N/A	28.0 μg/m³ (26)	11.8 μg/m³ (50)	50.0
June 20, 2021, 4 a.m.	0.7 ppb (1)	-0.2 ppb (0)	1.4 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	22.0 ppb (21)	0.15 ppb (2)	32.0 μg/m³ (30)	13.7 μg/m³ (55)	55.0
June 20, 2021, 3 a.m.	0.9 ppb (1)	-0.1 ppb (0)	1.8 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	24.0 ppb (23)	0.16 ppb (3)	35.0 μg/m³ (33)	15.9 μg/m³ (59)	59.0
June 20, 2021, 2 a.m.	1.1 ppb (2)	-0.2 ppb (0)	2.1 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	28.0 ppb (26)	0.19 ppb (3)	36.0 μg/m³ (34)	17.6 μg/m³ (63)	63.0
June 20, 2021, 1 a.m.	1.2 ppb (2)	-0.2 ppb (0)	2.5 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	35.0 ppb (33)	0.2 ppb (3)	33.0 μg/m³ (31)	19.6 μg/m³ (67)	67.0
June 20, 2021, midnight	1.5 ppb (2)	-0.1 ppb (0)	2.8 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	41.0 ppb (38)	0.22 ppb (3)	32.0 μg/m³ (30)	19.7 μg/m³ (67)	67.0
June 19, 2021, 11 p.m.	2.7 ppb (3)	0.0 ppb (0)	4.4 ppb (5)	3.0 ppb (3)	N/A	0.0 ppb (0)	53.0 ppb (50)	0.25 ppb (3)	27.0 μg/m³ (25)	19.1 μg/m³ (66)	66.0
June 19, 2021, 10 p.m.	1.4 ppb (2)	-0.2 ppb (0)	3.4 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	62.0 ppb (74)	0.24 ppb (3)	25.0 μg/m³ (24)	19.5 μg/m³ (67)	74.0
June 19, 2021, 9 p.m.	1.0 ppb (1)	-0.1 ppb (0)	3.0 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	62.0 ppb (74)	0.23 ppb (3)	25.0 μg/m³ (24)	19.4 μg/m³ (67)	74.0
June 19, 2021, 8 p.m.	1.0 ppb (1)	-0.1 ppb (0)	2.8 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	62.0 ppb (74)	0.22 ppb (3)	24.0 μg/m³ (23)	17.2 μg/m³ (62)	74.0
June 19, 2021, 7 p.m.	0.6 ppb (1)	-0.2 ppb (0)	2.3 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	61.0 ppb (71)	0.21 ppb (3)	23.0 μg/m³ (22)	17.3 μg/m³ (62)	71.0
June 19, 2021, 6 p.m.	1.1 ppb (2)	0.0 ppb (0)	2.7 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	60.0 ppb (68)	0.22 ppb (3)	25.0 μg/m³ (24)	17.5 μg/m³ (63)	68.0
June 19, 2021, 5 p.m.	0.8 ppb (1)	-0.1 ppb (0)	2.5 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	59.0 ppb (65)	0.21 ppb (3)	22.0 μg/m³ (21)	16.8 μg/m³ (61)	65.0
June 19, 2021, 4 p.m.	1.0 ppb (1)	0.0 ppb (0)	2.8 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	58.0 ppb (61)	0.22 ppb (3)	24.0 μg/m³ (23)	17.1 μg/m³ (62)	62.0
June 19, 2021, 3 p.m.	1.2 ppb (2)	0.0 ppb (0)	2.7 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	53.0 ppb (50)	0.22 ppb (3)	25.0 μg/m³ (24)	18.4 μg/m³ (65)	65.0
June 19, 2021, 2 p.m.	1.4 ppb (2)	0.0 ppb (0)	3.2 ppb (4)	1.0 ppb (1)	N/A	0.0 ppb (0)	47.0 ppb (44)	0.22 ppb (3)	23.0 μg/m³ (22)	18.1 μg/m³ (64)	64.0
June 19, 2021, 1 p.m.	1.8 ppb (2)	0.2 ppb (1)	3.5 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	42.0 ppb (39)	0.22 ppb (3)	23.0 μg/m³ (22)	18.1 μg/m³ (64)	64.0
June 19, 2021, noon	1.8 ppb (2)	0.1 ppb (1)	3.4 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	39.0 ppb (37)	0.2 ppb (3)	24.0 μg/m³ (23)	15.9 μg/m³ (59)	59.0
June 19, 2021, 11 a.m.	2.0 ppb (2)	0.1 ppb (1)	3.3 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	38.0 ppb (36)	0.2 ppb (3)	20.0 μg/m³ (19)	13.9 μg/m³ (55)	55.0
June 19, 2021, 10 a.m.	1.9 ppb (2)	0.0 ppb (0)	3.1 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	38.0 ppb (36)	0.19 ppb (3)	19.0 μg/m³ (18)	13.5 μg/m³ (54)	54.0
June 19, 2021, 9 a.m.	1.7 ppb (2)	0.0 ppb (0)	N/A	2.0 ppb (2)	N/A	0.0 ppb (0)	40.0 ppb (38)	0.19 ppb (3)	20.0 μg/m³ (19)	14.3 μg/m³ (56)	56.0
June 19, 2021, 8 a.m.	2.0 ppb (2)	0.4 ppb (1)	3.3 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	N/A	0.19 ppb (3)	21.0 μg/m³ (20)	14.4 μg/m³ (56)	56.0
June 19, 2021, 7 a.m.	N/A	N/A	3.5 ppb (4)	N/A	N/A	0.0 ppb (0)	43.0 ppb (40)	0.19 ppb (3)	22.0 μg/m³ (21)	14.3 μg/m³ (56)	56.0
June 19, 2021, 6 a.m.	2.0 ppb (2)	-0.1 ppb (0)	3.6 ppb (4)	2.0 ppb (2)	N/A	N/A	46.0 ppb (43)	0.19 ppb (3)	22.0 μg/m³ (21)	14.7 μg/m³ (57)	57.0
June 19, 2021, 5 a.m.	2.3 ppb (3)	0.0 ppb (0)	4.0 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	49.0 ppb (46)	N/A	25.0 μg/m³ (24)	15.2 μg/m³ (58)	58.0
June 19, 2021, 4 a.m.	3.2 ppb (4)	-0.1 ppb (0)	5.2 ppb (5)	3.0 ppb (3)	N/A	0.0 ppb (0)	51.0 ppb (48)	0.25 ppb (3)	27.0 μg/m³ (25)	16.1 μg/m³ (60)	60.0
June 19, 2021, 3 a.m.	4.6 ppb (5)	0.0 ppb (0)	6.5 ppb (7)	5.0 ppb (5)	N/A	0.0 ppb (0)	52.0 ppb (49)	0.3 ppb (4)	28.0 μg/m³ (26)	17.0 μg/m³ (62)	62.0
June 19, 2021, 2 a.m.	4.7 ppb (5)	0.0 ppb (0)	6.4 ppb (7)	5.0 ppb (5)	N/A	0.0 ppb (0)	52.0 ppb (49)	0.31 ppb (4)	28.0 μg/m³ (26)	17.3 μg/m³ (62)	62.0
June 19, 2021, 1 a.m.	10.1 ppb (10)	0.3 ppb (1)	11.3 ppb (11)	10.0 ppb (10)	N/A	0.0 ppb (0)	47.0 ppb (44)	0.42 ppb (5)	28.0 μg/m³ (26)	17.3 μg/m³ (62)	62.0
June 19, 2021, midnight	7.5 ppb (8)	0.2 ppb (1)	10.2 ppb (10)	7.0 ppb (7)	N/A	0.0 ppb (0)	52.0 ppb (49)	0.29 ppb (4)	21.0 μg/m³ (20)	12.4 μg/m³ (52)	52.0
June 18, 2021, 11 p.m.	2.0 ppb (2)	-0.2 ppb (0)	3.7 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	63.0 ppb (78)	0.21 ppb (3)	22.0 μg/m³ (21)	12.3 μg/m³ (52)	78.0
June 18, 2021, 10 p.m.	1.8 ppb (2)	-0.1 ppb (0)	3.7 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	62.0 ppb (74)	0.19 ppb (3)	20.0 μg/m³ (19)	10.9 μg/m³ (46)	74.0
June 18, 2021, 9 p.m.	1.6 ppb (2)	0.0 ppb (0)	3.8 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	64.0 ppb (81)	0.19 ppb (3)	22.0 μg/m³ (21)	10.9 μg/m³ (46)	81.0
June 18, 2021, 8 p.m.	1.2 ppb (2)	0.0 ppb (0)	3.1 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	65.0 ppb (84)	0.19 ppb (3)	20.0 μg/m³ (19)	10.0 μg/m³ (42)	84.0
June 18, 2021, 7 p.m.	1.2 ppb (2)	0.0 ppb (0)	3.0 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	65.0 ppb (84)	0.18 ppb (3)	19.0 μg/m³ (18)	9.2 μg/m³ (39)	84.0
June 18, 2021, 6 p.m.	1.3 ppb (2)	0.1 ppb (1)	3.1 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	65.0 ppb (84)	0.18 ppb (3)	19.0 μg/m³ (18)	8.5 μg/m³ (36)	84.0
June 18, 2021, 5 p.m.	1.4 ppb (2)	0.0 ppb (0)	3.2 ppb (4)	1.0 ppb (1)	N/A	0.0 ppb (0)	64.0 ppb (81)	0.17 ppb (3)	17.0 μg/m³ (16)	8.0 μg/m³ (34)	81.0
June 18, 2021, 4 p.m.	1.4 ppb (2)	0.1 ppb (1)	3.3 ppb (4)	1.0 ppb (1)	N/A	0.0 ppb (0)	62.0 ppb (74)	0.17 ppb (3)	18.0 μg/m³ (17)	8.2 μg/m³ (35)	74.0
June 18, 2021, 3 p.m.	1.6 ppb (2)	0.2 ppb (1)	3.4 ppb (4)	1.0 ppb (1)	N/A	0.0 ppb (0)	61.0 ppb (71)	0.18 ppb (3)	21.0 μg/m³ (20)	9.2 μg/m³ (39)	71.0
June 18, 2021, 2 p.m.	8.5 ppb (9)	2.0 ppb (2)	9.7 ppb (10)	7.0 ppb (7)	N/A	0.0 ppb (0)	55.0 ppb (51)	0.23 ppb (3)	23.0 μg/m³ (22)	11.5 μg/m³ (48)	51.0
June 18, 2021, 1 p.m.	8.7 ppb (9)	2.3 ppb (3)	10.9 ppb (11)	6.0 ppb (6)	N/A	0.0 ppb (0)	43.0 ppb (40)	0.26 ppb (4)	25.0 μg/m³ (24)	11.8 μg/m³ (50)	50.0
June 18, 2021, noon	8.0 ppb (8)	2.4 ppb (3)	10.0 ppb (10)	6.0 ppb (6)	N/A	0.0 ppb (0)	28.0 ppb (26)	0.31 ppb (4)	20.0 μg/m³ (19)	11.5 μg/m³ (48)	48.0
June 18, 2021, 11 a.m.	12.9 ppb (13)	5.5 ppb (6)	14.6 ppb (14)	7.0 ppb (7)	N/A	0.0 ppb (0)	13.0 ppb (13)	0.34 ppb (4)	19.0 μg/m³ (18)	11.4 μg/m³ (48)	48.0
June 18, 2021, 10 a.m.	13.0 ppb (13)	3.0 ppb (3)	14.1 ppb (14)	10.0 ppb (10)	N/A	0.0 ppb (0)	6.0 ppb (6)	0.34 ppb (4)	18.0 μg/m³ (17)	10.7 μg/m³ (45)	45.0
June 18, 2021, 9 a.m.	12.7 ppb (12)	0.8 ppb (1)	N/A	12.0 ppb (12)	N/A	0.0 ppb (0)	6.0 ppb (6)	0.35 ppb (4)	18.0 μg/m³ (17)	10.7 μg/m³ (45)	45.0
June 18, 2021, 8 a.m.	12.8 ppb (13)	1.0 ppb (1)	16.8 ppb (16)	12.0 ppb (12)	N/A	0.0 ppb (0)	N/A	0.35 ppb (4)	17.0 μg/m³ (16)	10.5 μg/m³ (44)	44.0
June 18, 2021, 7 a.m.	N/A	N/A	12.4 ppb (12)	N/A	N/A	0.0 ppb (0)	12.0 ppb (12)	0.32 ppb (4)	19.0 μg/m³ (18)	10.8 μg/m³ (46)	46.0
June 18, 2021, 6 a.m.	5.2 ppb (5)	0.1 ppb (1)	7.5 ppb (8)	5.0 ppb (5)	N/A	N/A	21.0 ppb (20)	0.29 ppb (4)	22.0 μg/m³ (21)	11.9 μg/m³ (50)	50.0
June 18, 2021, 5 a.m.	8.5 ppb (9)	0.2 ppb (1)	10.3 ppb (10)	8.0 ppb (8)	N/A	0.0 ppb (0)	19.0 ppb (18)	N/A	24.0 μg/m³ (23)	13.2 μg/m³ (54)	54.0
June 18, 2021, 4 a.m.	12.1 ppb (12)	0.9 ppb (1)	14.0 ppb (14)	11.0 ppb (11)	N/A	0.0 ppb (0)	22.0 ppb (21)	0.4 ppb (5)	19.0 μg/m³ (18)	9.7 μg/m³ (41)	41.0
June 18, 2021, 3 a.m.	9.0 ppb (9)	0.1 ppb (1)	11.7 ppb (12)	9.0 ppb (9)	N/A	0.0 ppb (0)	28.0 ppb (26)	0.36 ppb (5)	18.0 μg/m³ (17)	10.2 μg/m³ (43)	43.0
June 18, 2021, 2 a.m.	9.5 ppb (9)	0.0 ppb (0)	13.7 ppb (13)	10.0 ppb (10)	N/A	0.0 ppb (0)	31.0 ppb (29)	0.42 ppb (5)	17.0 μg/m³ (16)	10.1 μg/m³ (43)	43.0
June 18, 2021, 1 a.m.	11.2 ppb (11)	0.2 ppb (1)	14.6 ppb (14)	11.0 ppb (11)	N/A	0.0 ppb (0)	35.0 ppb (33)	0.43 ppb (5)	17.0 μg/m³ (16)	9.3 μg/m³ (39)	39.0
June 18, 2021, midnight	4.8 ppb (5)	0.1 ppb (1)	7.8 ppb (8)	5.0 ppb (5)	N/A	0.0 ppb (0)	50.0 ppb (47)	0.2 ppb (3)	12.0 μg/m³ (12)	6.0 μg/m³ (25)	47.0
June 17, 2021, 11 p.m.	0.8 ppb (1)	-0.1 ppb (0)	2.0 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	58.0 ppb (61)	0.15 ppb (2)	12.0 μg/m³ (12)	5.0 μg/m³ (21)	61.0
June 17, 2021, 10 p.m.	0.3 ppb (1)	-0.2 ppb (0)	1.5 ppb (2)	0.0 ppb (0)	N/A	0.0 ppb (0)	58.0 ppb (61)	0.14 ppb (2)	11.0 μg/m³ (11)	4.8 μg/m³ (20)	61.0
June 17, 2021, 9 p.m.	0.3 ppb (1)	-0.2 ppb (0)	1.5 ppb (2)	0.0 ppb (0)	N/A	0.0 ppb (0)	58.0 ppb (61)	0.14 ppb (2)	14.0 μg/m³ (13)	4.9 μg/m³ (21)	61.0
June 17, 2021, 8 p.m.	0.3 ppb (1)	-0.1 ppb (0)	1.4 ppb (2)	0.0 ppb (0)	N/A	0.0 ppb (0)	57.0 ppb (58)	0.14 ppb (2)	13.0 μg/m³ (13)	5.0 μg/m³ (21)	58.0
June 17, 2021, 7 p.m.	0.4 ppb (1)	-0.1 ppb (0)	1.6 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	57.0 ppb (58)	0.14 ppb (2)	12.0 μg/m³ (12)	5.0 μg/m³ (21)	58.0
June 17, 2021, 6 p.m.	0.5 ppb (1)	-0.1 ppb (0)	1.9 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	58.0 ppb (61)	0.14 ppb (2)	12.0 μg/m³ (12)	5.2 μg/m³ (22)	61.0
June 17, 2021, 5 p.m.	0.5 ppb (1)	0.0 ppb (0)	1.8 ppb (2)	0.0 ppb (0)	N/A	0.0 ppb (0)	56.0 ppb (55)	0.14 ppb (2)	14.0 μg/m³ (13)	5.7 μg/m³ (24)	55.0
June 17, 2021, 4 p.m.	0.5 ppb (1)	0.0 ppb (0)	2.0 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	56.0 ppb (55)	0.15 ppb (2)	17.0 μg/m³ (16)	6.0 μg/m³ (25)	55.0
June 17, 2021, 3 p.m.	0.8 ppb (1)	0.0 ppb (0)	2.2 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	53.0 ppb (50)	0.15 ppb (2)	17.0 μg/m³ (16)	6.5 μg/m³ (28)	50.0
June 17, 2021, 2 p.m.	1.1 ppb (2)	0.1 ppb (1)	2.5 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	49.0 ppb (46)	0.16 ppb (3)	15.0 μg/m³ (14)	5.9 μg/m³ (25)	46.0
June 17, 2021, 1 p.m.	2.2 ppb (3)	0.4 ppb (1)	3.4 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	44.0 ppb (41)	0.16 ppb (3)	17.0 μg/m³ (16)	6.0 μg/m³ (25)	41.0
June 17, 2021, noon	4.3 ppb (5)	1.0 ppb (1)	5.5 ppb (6)	3.0 ppb (3)	N/A	0.0 ppb (0)	35.0 ppb (33)	0.16 ppb (3)	16.0 μg/m³ (15)	5.5 μg/m³ (23)	33.0
June 17, 2021, 11 a.m.	4.9 ppb (5)	1.0 ppb (1)	5.9 ppb (6)	4.0 ppb (4)	N/A	0.0 ppb (0)	29.0 ppb (27)	0.16 ppb (3)	15.0 μg/m³ (14)	5.2 μg/m³ (22)	27.0
June 17, 2021, 10 a.m.	3.9 ppb (4)	0.1 ppb (1)	4.8 ppb (5)	4.0 ppb (4)	N/A	0.0 ppb (0)	31.0 ppb (29)	0.15 ppb (2)	12.0 μg/m³ (12)	4.7 μg/m³ (20)	29.0
June 17, 2021, 9 a.m.	3.0 ppb (3)	-0.1 ppb (0)	N/A	3.0 ppb (3)	N/A	0.0 ppb (0)	34.0 ppb (32)	0.13 ppb (2)	11.0 μg/m³ (11)	4.5 μg/m³ (19)	32.0
June 17, 2021, 8 a.m.	1.9 ppb (2)	0.1 ppb (1)	2.6 ppb (3)	2.0 ppb (2)	N/A	0.0 ppb (0)	N/A	0.12 ppb (2)	9.0 μg/m³ (9)	4.0 μg/m³ (17)	17.0
June 17, 2021, 7 a.m.	N/A	N/A	2.1 ppb (2)	N/A	N/A	0.0 ppb (0)	38.0 ppb (36)	0.13 ppb (2)	8.0 μg/m³ (8)	4.5 μg/m³ (19)	36.0
June 17, 2021, 6 a.m.	1.6 ppb (2)	-0.3 ppb (0)	2.5 ppb (3)	2.0 ppb (2)	N/A	N/A	34.0 ppb (32)	0.15 ppb (2)	13.0 μg/m³ (13)	6.3 μg/m³ (27)	32.0
June 17, 2021, 5 a.m.	2.8 ppb (3)	-0.2 ppb (0)	3.7 ppb (4)	3.0 ppb (3)	N/A	0.0 ppb (0)	30.0 ppb (28)	N/A	16.0 μg/m³ (15)	8.0 μg/m³ (34)	34.0
June 17, 2021, 4 a.m.	6.0 ppb (6)	0.0 ppb (0)	7.4 ppb (7)	6.0 ppb (6)	N/A	0.0 ppb (0)	23.0 ppb (22)	0.26 ppb (4)	18.0 μg/m³ (17)	8.4 μg/m³ (36)	36.0
June 17, 2021, 3 a.m.	11.4 ppb (11)	0.2 ppb (1)	13.0 ppb (13)	11.0 ppb (11)	N/A	0.0 ppb (0)	18.0 ppb (17)	0.33 ppb (4)	19.0 μg/m³ (18)	9.5 μg/m³ (40)	40.0
June 17, 2021, 2 a.m.	16.6 ppb (16)	0.4 ppb (1)	20.5 ppb (20)	16.0 ppb (16)	N/A	0.0 ppb (0)	18.0 ppb (17)	0.4 ppb (5)	22.0 μg/m³ (21)	13.3 μg/m³ (54)	54.0
June 17, 2021, 1 a.m.	14.0 ppb (14)	0.9 ppb (1)	17.1 ppb (17)	13.0 ppb (13)	N/A	0.0 ppb (0)	28.0 ppb (26)	0.34 ppb (4)	20.0 μg/m³ (19)	11.5 μg/m³ (48)	48.0
June 17, 2021, midnight	2.1 ppb (2)	-0.2 ppb (0)	3.6 ppb (4)	2.0 ppb (2)	N/A	0.0 ppb (0)	47.0 ppb (44)	0.16 ppb (3)	10.0 μg/m³ (10)	5.5 μg/m³ (23)	44.0
June 16, 2021, 11 p.m.	0.9 ppb (1)	-0.1 ppb (0)	2.0 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	51.0 ppb (48)	0.14 ppb (2)	11.0 μg/m³ (11)	5.3 μg/m³ (23)	48.0
June 16, 2021, 10 p.m.	0.7 ppb (1)	-0.1 ppb (0)	1.8 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	53.0 ppb (50)	0.14 ppb (2)	12.0 μg/m³ (12)	5.5 μg/m³ (23)	50.0
June 16, 2021, 9 p.m.	0.7 ppb (1)	-0.1 ppb (0)	1.9 ppb (2)	1.0 ppb (1)	N/A	0.0 ppb (0)	54.0 ppb (50)	0.14 ppb (2)	13.0 μg/m³ (13)	5.4 μg/m³ (23)	50.0
June 16, 2021, 8 p.m.	1.4 ppb (2)	0.1 ppb (1)	2.6 ppb (3)	1.0 ppb (1)	N/A	0.0 ppb (0)	54.0 ppb (50)	0.14 ppb (2)	14.0 μg/m³ (13)	5.3 μg/m³ (23)	50.0

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