Air Quality
Excellent
No health implications.
25
PM2.5
40
PM10
74
O3
0.8
CO
6
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Feb
83
Good
Tue
17 Feb
165
Moderate
Wed
18 Feb
85
Good
Thu
19 Feb
57
Good
Fri
20 Feb
66
Good
Sat
21 Feb
80
Good
Sun
22 Feb
36
Excellent
Air quality in the last 12 months (Heshan)
|
2026/01
|
35
|
24
|
38
|
82
|
16
|
33
|
54
|
63
|
79
|
93
|
85
|
91
|
113
|
135
|
123
|
102
|
126
|
107
|
95
|
44
|
17
|
20
|
44
|
65
|
105
|
78
|
24
|
40
|
76
|
45
|
17
|
|
2025/12
|
76
|
69
|
76
|
76
|
69
|
64
|
76
|
54
|
68
|
88
|
119
|
102
|
28
|
45
|
57
|
63
|
59
|
55
|
67
|
68
|
63
|
74
|
106
|
12
|
30
|
55
|
59
|
60
|
71
|
79
|
68
|
|
2025/11
|
30
|
34
|
14
|
11
|
19
|
33
|
39
|
32
|
12
|
12
|
11
|
25
|
39
|
41
|
45
|
46
|
53
|
26
|
21
|
29
|
28
|
41
|
51
|
44
|
42
|
52
|
48
|
57
|
64
|
67
|
|
|
2025/10
|
29
|
27
|
25
|
28
|
27
|
13
|
20
|
27
|
35
|
39
|
37
|
38
|
33
|
22
|
22
|
30
|
41
|
44
|
18
|
15
|
14
|
14
|
23
|
36
|
44
|
39
|
39
|
35
|
49
|
58
|
36
|
|
2025/09
|
25
|
22
|
19
|
23
|
22
|
24
|
33
|
32
|
16
|
19
|
17
|
17
|
23
|
26
|
26
|
27
|
19
|
28
|
31
|
34
|
22
|
18
|
21
|
14
|
11
|
17
|
23
|
28
|
26
|
31
|
|
|
2025/08
|
19
|
26
|
33
|
29
|
21
|
18
|
16
|
28
|
25
|
27
|
30
|
32
|
30
|
32
|
14
|
18
|
22
|
17
|
14
|
18
|
22
|
25
|
26
|
26
|
25
|
25
|
25
|
27
|
28
|
22
|
21
|
|
2025/07
|
18
|
19
|
20
|
25
|
35
|
37
|
32
|
24
|
30
|
24
|
19
|
20
|
21
|
23
|
25
|
25
|
29
|
34
|
40
|
34
|
17
|
12
|
12
|
18
|
21
|
25
|
40
|
45
|
27
|
32
|
20
|
|
2025/06
|
25
|
19
|
19
|
39
|
49
|
27
|
22
|
25
|
20
|
19
|
22
|
24
|
20
|
20
|
24
|
18
|
19
|
21
|
21
|
22
|
23
|
23
|
24
|
23
|
22
|
26
|
14
|
21
|
23
|
19
|
|
|
2025/05
|
37
|
48
|
39
|
30
|
35
|
30
|
39
|
44
|
25
|
36
|
29
|
45
|
47
|
38
|
19
|
17
|
21
|
17
|
16
|
24
|
23
|
24
|
19
|
27
|
40
|
37
|
44
|
44
|
10
|
28
|
31
|
|
2025/04
|
39
|
53
|
73
|
64
|
86
|
95
|
90
|
80
|
81
|
62
|
48
|
54
|
115
|
148
|
112
|
101
|
88
|
65
|
53
|
42
|
38
|
40
|
34
|
33
|
23
|
30
|
37
|
26
|
47
|
43
|
|
|
2025/03
|
42
|
44
|
56
|
51
|
31
|
18
|
32
|
42
|
49
|
39
|
49
|
37
|
37
|
52
|
14
|
28
|
54
|
33
|
36
|
56
|
62
|
72
|
65
|
71
|
76
|
56
|
54
|
75
|
33
|
14
|
22
|
|
2025/02
|
42
|
15
|
15
|
56
|
104
|
34
|
16
|
53
|
52
|
70
|
122
|
77
|
50
|
92
|
48
|
32
|
38
|
32
|
42
|
27
|
16
|
21
|
13
|
41
|
76
|
25
|
42
|
57
|
|||
|
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