Air Quality
Excellent
No health implications.
5
PM2.5
14
PM10
30
O3
0.6
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Dec
86
Good
Sun
14 Dec
77
Good
Mon
15 Dec
77
Good
Tue
16 Dec
81
Good
Wed
17 Dec
90
Good
Thu
18 Dec
44
Excellent
Fri
19 Dec
46
Excellent
Hengnan Air quality rank
Air quality in the last 12 months (Hengnan)
|
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
|
|
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
|
|
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