Air Quality
Excellent
No health implications.
23
PM2.5
26
PM10
59
O3
1.1
CO
10
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Aug
62
Good
Fri
21 Aug
61
Good
Sat
22 Aug
45
Excellent
Sun
23 Aug
48
Excellent
Mon
24 Aug
53
Good
Tue
25 Aug
45
Excellent
Wed
26 Aug
44
Excellent
Air quality in the last 12 months (Hengnan)
|
2026/07
|
25
|
26
|
24
|
19
|
17
|
16
|
15
|
15
|
21
|
24
|
29
|
36
|
43
|
32
|
19
|
21
|
21
|
24
|
22
|
20
|
20
|
27
|
23
|
34
|
40
|
32
|
14
|
18
|
20
|
16
|
16
|
|
2026/06
|
48
|
52
|
33
|
25
|
25
|
29
|
33
|
22
|
29
|
39
|
47
|
51
|
35
|
25
|
33
|
43
|
46
|
18
|
16
|
17
|
22
|
26
|
21
|
20
|
27
|
29
|
36
|
49
|
45
|
21
|
|
|
2026/05
|
41
|
31
|
29
|
45
|
56
|
53
|
34
|
34
|
38
|
57
|
63
|
80
|
27
|
30
|
41
|
37
|
19
|
20
|
25
|
24
|
29
|
17
|
20
|
22
|
28
|
30
|
35
|
38
|
42
|
45
|
53
|
|
2026/04
|
36
|
41
|
24
|
39
|
55
|
36
|
42
|
49
|
50
|
42
|
27
|
29
|
36
|
23
|
24
|
23
|
38
|
45
|
48
|
45
|
16
|
17
|
28
|
43
|
46
|
57
|
58
|
43
|
28
|
32
|
|
|
2026/03
|
14
|
22
|
43
|
68
|
48
|
50
|
67
|
36
|
27
|
59
|
49
|
54
|
55
|
60
|
105
|
37
|
40
|
22
|
31
|
25
|
39
|
38
|
31
|
25
|
67
|
40
|
38
|
40
|
44
|
26
|
28
|
|
2026/02
|
47
|
56
|
59
|
81
|
97
|
68
|
68
|
59
|
55
|
60
|
63
|
72
|
64
|
62
|
71
|
25
|
91
|
73
|
52
|
44
|
60
|
67
|
55
|
35
|
49
|
31
|
18
|
24
|
|||
|
2026/01
|
33
|
56
|
67
|
69
|
57
|
78
|
75
|
64
|
67
|
90
|
102
|
93
|
110
|
88
|
97
|
115
|
100
|
111
|
39
|
21
|
52
|
65
|
66
|
44
|
66
|
62
|
127
|
79
|
55
|
32
|
39
|
|
2025/12
|
75
|
108
|
88
|
68
|
80
|
85
|
98
|
109
|
117
|
128
|
102
|
115
|
29
|
49
|
54
|
63
|
71
|
144
|
95
|
69
|
93
|
94
|
52
|
43
|
58
|
58
|
66
|
79
|
94
|
120
|
157
|
|
2025/11
|
49
|
44
|
26
|
27
|
29
|
27
|
46
|
14
|
10
|
16
|
39
|
56
|
44
|
48
|
52
|
58
|
61
|
28
|
33
|
43
|
50
|
59
|
70
|
60
|
54
|
64
|
76
|
85
|
77
|
73
|
|
|
2025/10
|
59
|
51
|
35
|
52
|
43
|
25
|
44
|
52
|
45
|
48
|
53
|
89
|
75
|
47
|
58
|
49
|
48
|
21
|
10
|
10
|
11
|
24
|
36
|
41
|
51
|
63
|
68
|
62
|
77
|
81
|
59
|
|
2025/09
|
19
|
24
|
31
|
34
|
37
|
36
|
36
|
30
|
19
|
23
|
20
|
22
|
26
|
38
|
39
|
43
|
34
|
35
|
30
|
21
|
23
|
19
|
26
|
11
|
14
|
23
|
38
|
49
|
58
|
52
|
|
|
2025/08
|
31
|
32
|
21
|
19
|
22
|
14
|
14
|
19
|
26
|
29
|
34
|
38
|
29
|
21
|
13
|
21
|
23
|
24
|
15
|
19
|
19
|
21
|
25
|
23
|
22
|
20
|
27
|
31
|
23
|
23
|
20
|
|
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