Air Quality
Excellent
No health implications.
10
PM2.5
27
PM10
55
O3
0.3
CO
5
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Apr
51
Good
Thu
16 Apr
54
Good
Fri
17 Apr
53
Good
Sat
18 Apr
57
Good
Sun
19 Apr
53
Good
Mon
20 Apr
21
Excellent
Tue
21 Apr
17
Excellent
Heishui Air quality rank
Air quality in the last 12 months (Heishui)
|
2026/03
|
27
|
27
|
32
|
38
|
46
|
47
|
40
|
34
|
29
|
31
|
36
|
38
|
27
|
28
|
45
|
29
|
25
|
30
|
38
|
44
|
39
|
43
|
36
|
37
|
33
|
31
|
42
|
41
|
31
|
25
|
37
|
|
2026/02
|
55
|
55
|
53
|
47
|
57
|
56
|
43
|
33
|
28
|
47
|
47
|
44
|
52
|
51
|
50
|
33
|
50
|
40
|
43
|
38
|
34
|
39
|
51
|
41
|
39
|
43
|
37
|
26
|
|||
|
2026/01
|
42
|
37
|
26
|
37
|
43
|
40
|
48
|
51
|
57
|
64
|
72
|
73
|
81
|
64
|
55
|
55
|
60
|
66
|
41
|
35
|
38
|
47
|
47
|
52
|
59
|
93
|
82
|
70
|
58
|
47
|
53
|
|
2025/12
|
62
|
57
|
44
|
40
|
48
|
49
|
49
|
54
|
60
|
51
|
62
|
52
|
52
|
52
|
55
|
68
|
69
|
73
|
79
|
52
|
43
|
41
|
45
|
48
|
52
|
44
|
59
|
63
|
54
|
60
|
46
|
|
2025/11
|
29
|
29
|
29
|
25
|
22
|
21
|
26
|
39
|
38
|
27
|
31
|
37
|
38
|
38
|
35
|
34
|
36
|
30
|
35
|
47
|
51
|
56
|
46
|
54
|
59
|
55
|
55
|
59
|
59
|
58
|
|
|
2025/10
|
21
|
24
|
21
|
19
|
24
|
19
|
19
|
21
|
23
|
22
|
15
|
21
|
22
|
28
|
29
|
32
|
26
|
27
|
25
|
19
|
17
|
16
|
18
|
16
|
20
|
29
|
29
|
30
|
27
|
31
|
36
|
|
2025/09
|
25
|
24
|
28
|
28
|
27
|
37
|
41
|
33
|
32
|
24
|
18
|
23
|
30
|
33
|
32
|
17
|
19
|
15
|
20
|
25
|
18
|
18
|
22
|
28
|
33
|
35
|
26
|
18
|
20
|
23
|
|
|
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
|
|
|
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