Air Quality
Excellent
No health implications.
13
PM2.5
25
PM10
42
O3
0.6
CO
7
SO2
26
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Jul
61
Good
Tue
15 Jul
53
Good
Wed
16 Jul
52
Good
Thu
17 Jul
57
Good
Fri
18 Jul
73
Good
Sat
19 Jul
35
Excellent
Sun
20 Jul
32
Excellent
Air quality in the last 12 months (Heishan)
|
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
|
|
|
2024/10
|
21
|
29
|
35
|
52
|
68
|
49
|
39
|
62
|
54
|
31
|
45
|
51
|
72
|
46
|
24
|
49
|
62
|
49
|
26
|
40
|
40
|
26
|
35
|
62
|
112
|
71
|
24
|
69
|
84
|
49
|
82
|
|
2024/09
|
21
|
20
|
41
|
33
|
17
|
31
|
43
|
48
|
41
|
21
|
39
|
35
|
41
|
14
|
26
|
47
|
42
|
35
|
53
|
11
|
15
|
25
|
45
|
49
|
27
|
43
|
52
|
62
|
49
|
14
|
|
|
2024/08
|
25
|
18
|
45
|
22
|
20
|
29
|
36
|
41
|
54
|
32
|
47
|
24
|
16
|
24
|
28
|
38
|
47
|
51
|
29
|
28
|
22
|
23
|
30
|
52
|
30
|
33
|
27
|
37
|
41
|
42
|
26
|
|
2024/07
|
58
|
66
|
29
|
47
|
60
|
58
|
30
|
55
|
56
|
56
|
61
|
69
|
52
|
56
|
48
|
19
|
25
|
43
|
50
|
31
|
41
|
25
|
39
|
27
|
20
|
9
|
17
|
16
|
27
|
43
|
30
|
|
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