Air Quality
Excellent
No health implications.
8
PM2.5
14
PM10
41
O3
0.7
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Oct
41
Excellent
Tue
21 Oct
39
Excellent
Wed
22 Oct
37
Excellent
Thu
23 Oct
40
Excellent
Fri
24 Oct
39
Excellent
Sat
25 Oct
34
Excellent
Sun
26 Oct
39
Excellent
Air quality in the last 12 months (Heishui)
|
2025/08
|
31
|
31
|
33
|
32
|
29
|
25
|
24
|
25
|
17
|
18
|
26
|
31
|
26
|
27
|
27
|
24
|
22
|
21
|
20
|
18
|
19
|
17
|
20
|
22
|
21
|
25
|
23
|
19
|
16
|
20
|
22
|
|
2025/07
|
26
|
23
|
20
|
20
|
20
|
23
|
23
|
26
|
24
|
29
|
21
|
23
|
25
|
27
|
32
|
35
|
37
|
30
|
28
|
18
|
17
|
24
|
20
|
18
|
20
|
17
|
22
|
24
|
25
|
22
|
27
|
|
2025/06
|
27
|
26
|
34
|
30
|
35
|
43
|
39
|
34
|
33
|
28
|
28
|
36
|
38
|
42
|
36
|
36
|
38
|
26
|
24
|
30
|
28
|
25
|
26
|
20
|
24
|
29
|
33
|
35
|
28
|
21
|
|
|
2025/05
|
36
|
42
|
48
|
44
|
30
|
31
|
31
|
35
|
76
|
66
|
47
|
44
|
35
|
42
|
32
|
51
|
57
|
63
|
49
|
41
|
47
|
46
|
53
|
42
|
37
|
41
|
27
|
25
|
32
|
29
|
27
|
|
2025/04
|
45
|
50
|
56
|
53
|
46
|
34
|
42
|
50
|
52
|
48
|
34
|
71
|
78
|
53
|
54
|
57
|
47
|
60
|
56
|
45
|
47
|
49
|
44
|
29
|
27
|
24
|
25
|
32
|
27
|
32
|
|
|
2025/03
|
42
|
52
|
38
|
32
|
27
|
31
|
54
|
49
|
28
|
37
|
50
|
63
|
50
|
28
|
28
|
28
|
34
|
35
|
41
|
43
|
39
|
40
|
47
|
40
|
37
|
46
|
90
|
57
|
54
|
59
|
49
|
|
2025/02
|
27
|
29
|
34
|
33
|
28
|
32
|
30
|
26
|
27
|
32
|
44
|
45
|
38
|
39
|
40
|
37
|
30
|
29
|
28
|
31
|
26
|
22
|
28
|
24
|
26
|
31
|
39
|
41
|
|||
|
2025/01
|
64
|
60
|
61
|
68
|
54
|
49
|
38
|
40
|
43
|
38
|
34
|
46
|
46
|
43
|
42
|
31
|
46
|
40
|
54
|
61
|
64
|
70
|
74
|
49
|
38
|
55
|
41
|
59
|
118
|
44
|
40
|
|
2024/12
|
59
|
61
|
54
|
40
|
40
|
36
|
33
|
21
|
22
|
30
|
38
|
33
|
33
|
38
|
46
|
55
|
65
|
65
|
55
|
44
|
46
|
32
|
36
|
42
|
47
|
49
|
58
|
54
|
46
|
48
|
50
|
|
2024/11
|
27
|
30
|
29
|
22
|
29
|
33
|
34
|
42
|
31
|
21
|
31
|
23
|
24
|
29
|
28
|
25
|
21
|
21
|
20
|
27
|
30
|
37
|
29
|
21
|
34
|
35
|
34
|
40
|
40
|
48
|
|
|
2024/10
|
24
|
28
|
24
|
23
|
27
|
33
|
32
|
31
|
28
|
25
|
26
|
24
|
29
|
34
|
32
|
30
|
23
|
31
|
20
|
20
|
25
|
27
|
36
|
40
|
29
|
23
|
28
|
36
|
33
|
30
|
27
|
|
2024/09
|
24
|
28
|
22
|
26
|
16
|
18
|
18
|
25
|
23
|
15
|
17
|
20
|
21
|
19
|
17
|
22
|
24
|
27
|
24
|
26
|
21
|
26
|
30
|
32
|
34
|
37
|
44
|
36
|
23
|
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