Air Quality
Excellent
No health implications.
20
PM2.5
42
PM10
68
O3
0.4
CO
4
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Dec
46
Excellent
Fri
5 Dec
48
Excellent
Sat
6 Dec
45
Excellent
Sun
7 Dec
46
Excellent
Mon
8 Dec
48
Excellent
Tue
9 Dec
57
Good
Wed
10 Dec
23
Excellent
Air quality in the last 12 months (Heishui)
|
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
|
|
|
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
|
|
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