Air Quality
Excellent
No health implications.
10
PM2.5
17
PM10
55
O3
0.4
CO
8
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 Dec
39
Excellent
Wed
3 Dec
53
Good
Thu
4 Dec
55
Good
Fri
5 Dec
87
Good
Sat
6 Dec
71
Good
Sun
7 Dec
69
Good
Mon
8 Dec
17
Excellent
Air quality in the last 12 months (Heishan)
|
2025/10
|
76
|
65
|
52
|
43
|
36
|
32
|
51
|
25
|
38
|
46
|
58
|
43
|
65
|
89
|
58
|
33
|
42
|
17
|
27
|
26
|
36
|
52
|
44
|
57
|
93
|
41
|
40
|
59
|
86
|
37
|
63
|
|
2025/09
|
42
|
50
|
52
|
47
|
42
|
30
|
33
|
29
|
40
|
28
|
51
|
38
|
43
|
36
|
27
|
30
|
17
|
30
|
46
|
45
|
42
|
54
|
43
|
30
|
36
|
49
|
67
|
38
|
50
|
54
|
|
|
2025/08
|
39
|
30
|
25
|
16
|
27
|
17
|
24
|
28
|
26
|
23
|
33
|
35
|
22
|
37
|
40
|
24
|
20
|
33
|
41
|
31
|
38
|
22
|
36
|
16
|
16
|
22
|
36
|
13
|
29
|
41
|
38
|
|
2025/07
|
31
|
33
|
15
|
32
|
38
|
19
|
35
|
43
|
31
|
35
|
40
|
37
|
17
|
21
|
24
|
24
|
21
|
19
|
27
|
16
|
25
|
33
|
20
|
21
|
31
|
36
|
38
|
31
|
22
|
14
|
37
|
|
2025/06
|
26
|
51
|
39
|
19
|
44
|
37
|
16
|
40
|
35
|
17
|
41
|
47
|
32
|
35
|
35
|
21
|
29
|
43
|
35
|
27
|
23
|
32
|
52
|
49
|
45
|
40
|
40
|
31
|
49
|
24
|
|
|
2025/05
|
37
|
36
|
42
|
31
|
31
|
38
|
49
|
63
|
39
|
41
|
67
|
75
|
63
|
63
|
68
|
51
|
30
|
32
|
57
|
61
|
61
|
69
|
32
|
50
|
34
|
50
|
58
|
58
|
47
|
58
|
51
|
|
2025/04
|
86
|
46
|
64
|
60
|
44
|
59
|
88
|
44
|
61
|
67
|
68
|
35
|
17
|
21
|
48
|
71
|
83
|
23
|
37
|
50
|
48
|
23
|
53
|
62
|
47
|
76
|
37
|
44
|
73
|
59
|
|
|
2025/03
|
120
|
46
|
40
|
66
|
88
|
51
|
76
|
83
|
144
|
111
|
95
|
96
|
52
|
50
|
44
|
38
|
61
|
37
|
60
|
77
|
58
|
68
|
172
|
66
|
109
|
134
|
51
|
28
|
28
|
33
|
63
|
|
2025/02
|
95
|
114
|
42
|
31
|
42
|
61
|
60
|
42
|
46
|
65
|
85
|
40
|
67
|
93
|
110
|
50
|
30
|
29
|
38
|
35
|
38
|
37
|
39
|
63
|
70
|
75
|
124
|
180
|
|||
|
2025/01
|
50
|
40
|
56
|
91
|
107
|
78
|
42
|
35
|
38
|
58
|
102
|
123
|
85
|
49
|
38
|
65
|
67
|
90
|
58
|
94
|
53
|
67
|
128
|
114
|
83
|
131
|
76
|
65
|
115
|
59
|
82
|
|
2024/12
|
64
|
22
|
39
|
38
|
51
|
25
|
35
|
48
|
78
|
46
|
39
|
74
|
43
|
47
|
37
|
46
|
29
|
44
|
72
|
72
|
38
|
46
|
36
|
70
|
94
|
43
|
41
|
48
|
81
|
76
|
43
|
|
2024/11
|
59
|
63
|
69
|
22
|
34
|
49
|
80
|
95
|
69
|
52
|
45
|
62
|
71
|
35
|
57
|
27
|
19
|
19
|
59
|
85
|
53
|
37
|
83
|
104
|
63
|
25
|
44
|
46
|
57
|
65
|
|
|
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