Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
22
PM2.5
53
*
PM10
90
O3
0.5
CO
12
SO2
19
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 Apr
69
Good
Sun
20 Apr
87
Good
Mon
21 Apr
87
Good
Tue
22 Apr
57
Good
Wed
23 Apr
73
Good
Thu
24 Apr
71
Good
Fri
25 Apr
40
Excellent
Air quality in the last 12 months (Heishan)
|
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
|
|
2024/06
|
23
|
49
|
33
|
49
|
45
|
46
|
36
|
39
|
41
|
53
|
57
|
46
|
33
|
31
|
19
|
42
|
58
|
64
|
47
|
35
|
28
|
53
|
76
|
14
|
22
|
40
|
55
|
40
|
28
|
27
|
|
|
2024/05
|
54
|
58
|
70
|
54
|
51
|
63
|
58
|
67
|
75
|
80
|
89
|
38
|
64
|
76
|
53
|
61
|
62
|
66
|
32
|
30
|
53
|
51
|
33
|
32
|
54
|
34
|
21
|
43
|
58
|
47
|
21
|
|
2024/04
|
64
|
91
|
48
|
55
|
94
|
92
|
93
|
73
|
124
|
115
|
96
|
88
|
50
|
39
|
222
|
71
|
59
|
60
|
58
|
121
|
86
|
55
|
47
|
43
|
58
|
66
|
44
|
23
|
47
|
60
|
|
|
2024/03
|
40
|
46
|
51
|
74
|
52
|
49
|
77
|
44
|
81
|
106
|
113
|
66
|
90
|
149
|
104
|
188
|
106
|
73
|
39
|
34
|
74
|
49
|
84
|
27
|
34
|
63
|
96
|
206
|
104
|
69
|
73
|
|
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