Air Quality
Excellent
No health implications.
7
PM2.5
9
PM10
34
O3
0.5
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Nov
48
Excellent
Wed
19 Nov
58
Good
Thu
20 Nov
57
Good
Fri
21 Nov
82
Good
Sat
22 Nov
60
Good
Sun
23 Nov
22
Excellent
Mon
24 Nov
50
Excellent
Air quality in the last 12 months (Hengnan)
|
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
|
|
2025/07
|
20
|
19
|
23
|
28
|
38
|
43
|
50
|
37
|
36
|
26
|
26
|
28
|
33
|
36
|
27
|
29
|
33
|
45
|
35
|
37
|
26
|
12
|
13
|
22
|
21
|
28
|
19
|
20
|
25
|
21
|
22
|
|
2025/06
|
16
|
20
|
38
|
45
|
49
|
42
|
31
|
26
|
37
|
43
|
38
|
24
|
34
|
20
|
15
|
25
|
16
|
13
|
17
|
26
|
26
|
12
|
26
|
19
|
38
|
31
|
17
|
18
|
24
|
21
|
|
|
2025/05
|
54
|
60
|
63
|
54
|
40
|
51
|
67
|
45
|
30
|
51
|
58
|
74
|
61
|
47
|
66
|
26
|
29
|
26
|
28
|
21
|
22
|
26
|
26
|
54
|
52
|
52
|
52
|
15
|
20
|
32
|
14
|
|
2025/04
|
66
|
67
|
70
|
106
|
96
|
87
|
77
|
69
|
71
|
51
|
54
|
213
|
200
|
133
|
92
|
71
|
82
|
65
|
29
|
28
|
38
|
36
|
55
|
31
|
28
|
37
|
27
|
40
|
59
|
53
|
|
|
2025/03
|
35
|
33
|
16
|
23
|
39
|
43
|
56
|
48
|
46
|
45
|
48
|
44
|
52
|
24
|
20
|
46
|
45
|
40
|
46
|
53
|
60
|
61
|
78
|
80
|
76
|
72
|
72
|
59
|
46
|
21
|
46
|
|
2025/02
|
35
|
29
|
52
|
67
|
78
|
77
|
65
|
55
|
50
|
53
|
71
|
74
|
94
|
112
|
57
|
40
|
51
|
43
|
33
|
21
|
77
|
31
|
37
|
83
|
100
|
95
|
50
|
36
|
|||
|
2025/01
|
149
|
125
|
157
|
178
|
162
|
107
|
91
|
87
|
60
|
62
|
67
|
85
|
83
|
76
|
93
|
69
|
85
|
83
|
113
|
97
|
109
|
108
|
154
|
240
|
40
|
31
|
58
|
69
|
204
|
131
|
61
|
|
2024/12
|
67
|
72
|
78
|
126
|
45
|
47
|
49
|
64
|
95
|
71
|
50
|
73
|
91
|
64
|
59
|
75
|
83
|
80
|
99
|
121
|
119
|
107
|
89
|
104
|
136
|
125
|
132
|
122
|
95
|
125
|
121
|
|
2024/11
|
60
|
92
|
77
|
75
|
85
|
61
|
57
|
49
|
59
|
71
|
53
|
61
|
59
|
68
|
60
|
65
|
22
|
13
|
16
|
33
|
50
|
49
|
59
|
64
|
35
|
26
|
36
|
45
|
51
|
60
|
|
|
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