Air Quality
Excellent
No health implications.
6
PM2.5
12
PM10
47
O3
0.4
CO
5
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Sep
49
Excellent
Fri
19 Sep
51
Good
Sat
20 Sep
48
Excellent
Sun
21 Sep
51
Good
Mon
22 Sep
52
Good
Tue
23 Sep
49
Excellent
Wed
24 Sep
27
Excellent
Real-time AQI (Monitoring Station in Heihe)
交通局
158
PM2.5
12
PM10
46
O3
0.2
CO
6
SO2
6
NO2
Air quality in the last 12 months (Heihe)
|
2025/08
|
17
|
24
|
20
|
24
|
20
|
16
|
22
|
23
|
18
|
14
|
25
|
17
|
18
|
19
|
19
|
20
|
21
|
24
|
20
|
24
|
29
|
21
|
14
|
27
|
28
|
27
|
28
|
29
|
27
|
20
|
22
|
|
2025/07
|
20
|
17
|
17
|
24
|
26
|
23
|
20
|
21
|
22
|
27
|
27
|
23
|
26
|
28
|
30
|
33
|
26
|
24
|
22
|
18
|
18
|
19
|
25
|
29
|
22
|
25
|
21
|
23
|
21
|
17
|
16
|
|
2025/06
|
26
|
30
|
24
|
17
|
18
|
19
|
20
|
19
|
21
|
24
|
28
|
27
|
18
|
20
|
25
|
28
|
24
|
27
|
26
|
19
|
17
|
22
|
33
|
36
|
41
|
41
|
37
|
43
|
35
|
30
|
|
|
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
|
|
|
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
Air quality source: CNEMC
*: primary pollution