Air Quality
Excellent
No health implications.
13
PM2.5
28
PM10
43
O3
0.4
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jun
39
Excellent
Mon
16 Jun
50
Excellent
Tue
17 Jun
57
Good
Wed
18 Jun
57
Good
Thu
19 Jun
58
Good
Fri
20 Jun
59
Good
Sat
21 Jun
40
Excellent
Air quality in the last 12 months (Hengnan)
|
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
|
|
|
2024/10
|
32
|
48
|
55
|
52
|
51
|
68
|
67
|
50
|
52
|
62
|
69
|
73
|
135
|
69
|
37
|
34
|
49
|
42
|
27
|
28
|
38
|
23
|
34
|
46
|
50
|
62
|
50
|
59
|
65
|
50
|
54
|
|
2024/09
|
55
|
55
|
58
|
49
|
52
|
48
|
36
|
34
|
42
|
39
|
44
|
43
|
37
|
44
|
46
|
45
|
52
|
51
|
48
|
45
|
38
|
31
|
39
|
44
|
60
|
58
|
55
|
57
|
53
|
51
|
|
|
2024/08
|
17
|
21
|
26
|
30
|
35
|
34
|
32
|
33
|
35
|
36
|
31
|
32
|
27
|
36
|
37
|
37
|
48
|
66
|
34
|
47
|
50
|
24
|
26
|
27
|
41
|
41
|
46
|
28
|
36
|
41
|
59
|
|
2024/07
|
25
|
19
|
24
|
18
|
19
|
21
|
24
|
21
|
23
|
25
|
23
|
26
|
24
|
22
|
28
|
21
|
16
|
17
|
19
|
21
|
24
|
29
|
27
|
35
|
44
|
33
|
23
|
15
|
17
|
15
|
17
|
|
2024/06
|
20
|
24
|
38
|
18
|
21
|
31
|
38
|
37
|
39
|
27
|
23
|
20
|
17
|
21
|
18
|
23
|
13
|
16
|
19
|
24
|
24
|
23
|
25
|
23
|
9
|
19
|
28
|
25
|
21
|
23
|
|
|
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