Air Quality
Excellent
No health implications.
17
PM2.5
27
PM10
47
O3
1.1
CO
4
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Mar
61
Good
Tue
24 Mar
85
Good
Wed
25 Mar
87
Good
Thu
26 Mar
57
Good
Fri
27 Mar
60
Good
Sat
28 Mar
89
Good
Sun
29 Mar
16
Excellent
Air quality in the last 12 months (Heshan)
|
2026/02
|
51
|
68
|
85
|
128
|
123
|
159
|
81
|
79
|
72
|
70
|
64
|
75
|
70
|
59
|
59
|
37
|
82
|
71
|
64
|
52
|
43
|
59
|
49
|
46
|
48
|
32
|
30
|
47
|
|||
|
2026/01
|
65
|
66
|
80
|
71
|
79
|
84
|
73
|
62
|
63
|
80
|
89
|
82
|
87
|
67
|
94
|
137
|
183
|
194
|
28
|
65
|
48
|
58
|
82
|
71
|
71
|
146
|
156
|
120
|
83
|
64
|
63
|
|
2025/12
|
111
|
119
|
66
|
68
|
65
|
84
|
118
|
130
|
132
|
160
|
167
|
184
|
33
|
53
|
63
|
65
|
112
|
118
|
83
|
112
|
61
|
89
|
53
|
67
|
62
|
74
|
88
|
88
|
107
|
169
|
138
|
|
2025/11
|
57
|
35
|
26
|
36
|
52
|
38
|
58
|
26
|
29
|
24
|
51
|
50
|
51
|
67
|
81
|
74
|
59
|
29
|
35
|
46
|
49
|
64
|
71
|
52
|
53
|
51
|
66
|
62
|
58
|
64
|
|
|
2025/10
|
58
|
41
|
36
|
40
|
54
|
57
|
73
|
91
|
71
|
37
|
162
|
103
|
41
|
48
|
42
|
44
|
27
|
15
|
16
|
16
|
25
|
34
|
40
|
48
|
92
|
88
|
78
|
69
|
92
|
91
|
59
|
|
2025/09
|
41
|
40
|
34
|
35
|
27
|
33
|
36
|
48
|
35
|
31
|
26
|
24
|
37
|
51
|
37
|
29
|
35
|
26
|
17
|
21
|
36
|
34
|
25
|
16
|
17
|
25
|
29
|
40
|
42
|
50
|
|
|
2025/08
|
37
|
39
|
39
|
23
|
22
|
25
|
15
|
17
|
20
|
27
|
30
|
38
|
15
|
28
|
16
|
19
|
21
|
26
|
15
|
13
|
14
|
18
|
18
|
19
|
23
|
18
|
20
|
20
|
20
|
44
|
18
|
|
2025/07
|
14
|
14
|
15
|
16
|
28
|
40
|
39
|
41
|
42
|
21
|
33
|
28
|
23
|
25
|
26
|
22
|
30
|
41
|
38
|
36
|
24
|
16
|
14
|
18
|
26
|
35
|
29
|
23
|
25
|
25
|
23
|
|
2025/06
|
13
|
41
|
40
|
45
|
43
|
45
|
30
|
34
|
31
|
35
|
34
|
33
|
23
|
25
|
24
|
25
|
19
|
15
|
21
|
20
|
20
|
18
|
15
|
19
|
22
|
29
|
28
|
16
|
18
|
16
|
|
|
2025/05
|
36
|
46
|
56
|
55
|
50
|
56
|
78
|
38
|
33
|
44
|
27
|
36
|
41
|
76
|
50
|
33
|
36
|
64
|
47
|
18
|
25
|
37
|
42
|
57
|
56
|
45
|
59
|
24
|
23
|
24
|
24
|
|
2025/04
|
50
|
48
|
52
|
59
|
71
|
56
|
60
|
66
|
67
|
67
|
51
|
179
|
108
|
101
|
73
|
58
|
62
|
63
|
43
|
67
|
41
|
36
|
45
|
42
|
49
|
33
|
39
|
48
|
56
|
27
|
|
|
2025/03
|
55
|
39
|
26
|
45
|
56
|
63
|
63
|
61
|
67
|
57
|
54
|
84
|
82
|
45
|
37
|
51
|
45
|
38
|
42
|
42
|
42
|
53
|
56
|
39
|
51
|
63
|
76
|
47
|
51
|
38
|
42
|
|
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