Air Quality
Excellent
No health implications.
20
PM2.5
45
PM10
141
O3
0.4
CO
8
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Mar
57
Good
Fri
20 Mar
52
Good
Sat
21 Mar
51
Good
Sun
22 Mar
58
Good
Mon
23 Mar
54
Good
Tue
24 Mar
60
Good
Wed
25 Mar
28
Excellent
Air quality in the last 12 months (Heshan)
|
2026/02
|
30
|
37
|
52
|
56
|
40
|
27
|
37
|
35
|
42
|
51
|
50
|
36
|
39
|
30
|
22
|
33
|
47
|
36
|
51
|
54
|
45
|
36
|
42
|
54
|
58
|
23
|
28
|
16
|
|||
|
2026/01
|
71
|
26
|
40
|
68
|
61
|
35
|
49
|
38
|
47
|
63
|
45
|
70
|
79
|
75
|
74
|
92
|
76
|
71
|
60
|
54
|
40
|
39
|
47
|
71
|
91
|
89
|
65
|
57
|
55
|
36
|
34
|
|
2025/12
|
55
|
50
|
55
|
70
|
84
|
83
|
100
|
66
|
69
|
86
|
73
|
53
|
39
|
35
|
50
|
77
|
60
|
55
|
75
|
47
|
56
|
72
|
57
|
66
|
24
|
45
|
54
|
66
|
78
|
68
|
74
|
|
2025/11
|
34
|
44
|
34
|
19
|
22
|
35
|
47
|
48
|
39
|
20
|
20
|
20
|
22
|
35
|
49
|
69
|
55
|
41
|
26
|
32
|
32
|
42
|
62
|
57
|
47
|
61
|
54
|
64
|
69
|
69
|
|
|
2025/10
|
27
|
15
|
15
|
27
|
11
|
16
|
26
|
30
|
36
|
34
|
34
|
22
|
24
|
25
|
29
|
42
|
38
|
49
|
39
|
20
|
13
|
14
|
26
|
42
|
47
|
49
|
56
|
54
|
62
|
60
|
42
|
|
2025/09
|
19
|
17
|
15
|
20
|
16
|
24
|
21
|
9
|
14
|
15
|
19
|
17
|
17
|
17
|
19
|
29
|
32
|
35
|
27
|
20
|
11
|
23
|
25
|
11
|
14
|
26
|
34
|
25
|
23
|
25
|
|
|
2025/08
|
20
|
20
|
24
|
33
|
23
|
15
|
24
|
34
|
25
|
21
|
19
|
17
|
23
|
26
|
12
|
28
|
22
|
11
|
17
|
19
|
17
|
20
|
34
|
17
|
18
|
28
|
29
|
48
|
29
|
20
|
18
|
|
2025/07
|
14
|
21
|
35
|
31
|
38
|
25
|
35
|
18
|
25
|
27
|
22
|
23
|
20
|
24
|
26
|
25
|
31
|
38
|
29
|
13
|
11
|
13
|
16
|
25
|
26
|
30
|
37
|
39
|
31
|
31
|
27
|
|
2025/06
|
28
|
24
|
21
|
33
|
28
|
29
|
19
|
16
|
19
|
25
|
21
|
19
|
16
|
11
|
19
|
22
|
12
|
15
|
13
|
13
|
12
|
15
|
13
|
14
|
17
|
13
|
13
|
11
|
13
|
20
|
|
|
2025/05
|
33
|
41
|
31
|
26
|
22
|
25
|
19
|
25
|
23
|
35
|
34
|
50
|
40
|
28
|
24
|
15
|
19
|
20
|
27
|
23
|
22
|
20
|
22
|
23
|
41
|
55
|
63
|
38
|
27
|
25
|
30
|
|
2025/04
|
34
|
48
|
60
|
42
|
42
|
65
|
71
|
58
|
43
|
33
|
29
|
49
|
248
|
162
|
104
|
97
|
67
|
45
|
29
|
29
|
25
|
28
|
29
|
23
|
20
|
44
|
32
|
30
|
38
|
46
|
|
|
2025/03
|
33
|
26
|
30
|
28
|
22
|
17
|
23
|
38
|
66
|
67
|
34
|
30
|
30
|
26
|
23
|
15
|
51
|
46
|
47
|
58
|
66
|
55
|
54
|
56
|
49
|
37
|
28
|
38
|
16
|
15
|
18
|
|
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