Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jun
Thu
19 Jun
Fri
20 Jun
Sat
21 Jun
Sun
22 Jun
Mon
23 Jun
Tue
24 Jun
Real-time AQI (Monitoring Station in Heihe)
交通局
269
PM2.5
26
PM10
46
O3
0.3
CO
6
SO2
15
NO2
党校
178
PM2.5
17
PM10
51
O3
0.2
CO
4
SO2
11
NO2
地震局
127
PM2.5
9
PM10
37
O3
0.4
CO
18
SO2
9
NO2
Air quality in the last 12 months (Heihe)
|
2025/05
|
26
|
23
|
19
|
18
|
16
|
23
|
31
|
38
|
44
|
39
|
75
|
111
|
79
|
32
|
48
|
24
|
28
|
14
|
15
|
18
|
20
|
21
|
23
|
24
|
25
|
28
|
30
|
47
|
54
|
48
|
35
|
|
2025/04
|
38
|
49
|
38
|
37
|
39
|
24
|
45
|
32
|
37
|
28
|
28
|
20
|
18
|
24
|
24
|
26
|
33
|
45
|
29
|
29
|
24
|
45
|
44
|
27
|
19
|
19
|
24
|
18
|
34
|
34
|
|
|
2025/03
|
26
|
24
|
26
|
43
|
57
|
39
|
31
|
39
|
33
|
61
|
32
|
32
|
25
|
25
|
21
|
25
|
28
|
25
|
26
|
32
|
21
|
21
|
18
|
16
|
16
|
22
|
27
|
18
|
17
|
19
|
26
|
|
2025/02
|
44
|
70
|
24
|
22
|
22
|
22
|
22
|
19
|
24
|
30
|
52
|
64
|
29
|
31
|
47
|
22
|
24
|
23
|
24
|
20
|
21
|
21
|
19
|
24
|
40
|
27
|
30
|
36
|
|||
|
2025/01
|
65
|
73
|
54
|
34
|
47
|
24
|
26
|
23
|
24
|
27
|
35
|
83
|
80
|
28
|
40
|
31
|
45
|
52
|
42
|
41
|
47
|
46
|
55
|
79
|
96
|
53
|
29
|
32
|
43
|
28
|
27
|
|
2024/12
|
36
|
29
|
40
|
27
|
33
|
22
|
22
|
27
|
31
|
36
|
27
|
19
|
21
|
27
|
24
|
27
|
24
|
21
|
21
|
26
|
24
|
49
|
36
|
29
|
30
|
25
|
31
|
30
|
38
|
64
|
50
|
|
2024/11
|
25
|
24
|
30
|
20
|
22
|
27
|
54
|
156
|
146
|
72
|
22
|
25
|
32
|
55
|
30
|
26
|
23
|
23
|
38
|
42
|
34
|
26
|
32
|
102
|
73
|
26
|
29
|
27
|
22
|
21
|
|
|
2024/10
|
22
|
38
|
26
|
29
|
29
|
23
|
50
|
35
|
50
|
58
|
24
|
22
|
28
|
61
|
20
|
22
|
23
|
27
|
23
|
28
|
54
|
31
|
32
|
33
|
41
|
31
|
55
|
39
|
113
|
59
|
45
|
|
2024/09
|
23
|
22
|
24
|
26
|
19
|
22
|
26
|
23
|
34
|
38
|
19
|
27
|
19
|
21
|
25
|
27
|
27
|
25
|
22
|
19
|
19
|
33
|
34
|
27
|
26
|
31
|
27
|
30
|
22
|
22
|
|
|
2024/08
|
33
|
25
|
24
|
22
|
18
|
27
|
32
|
20
|
21
|
25
|
22
|
24
|
28
|
28
|
36
|
34
|
21
|
20
|
33
|
39
|
31
|
24
|
28
|
26
|
20
|
20
|
22
|
23
|
25
|
26
|
19
|
|
2024/07
|
55
|
69
|
63
|
75
|
68
|
97
|
116
|
108
|
109
|
88
|
80
|
126
|
122
|
98
|
65
|
55
|
34
|
31
|
31
|
24
|
22
|
27
|
24
|
27
|
27
|
23
|
19
|
15
|
23
|
22
|
22
|
|
2024/06
|
33
|
38
|
33
|
29
|
22
|
30
|
33
|
19
|
24
|
25
|
27
|
22
|
28
|
25
|
28
|
20
|
23
|
31
|
25
|
23
|
21
|
25
|
25
|
30
|
42
|
38
|
36
|
40
|
47
|
45
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
*: primary pollution