Air Quality
Excellent
No health implications.
4
PM2.5
10
PM10
38
O3
1.0
CO
4
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Mar
46
Excellent
Wed
25 Mar
50
Excellent
Thu
26 Mar
47
Excellent
Fri
27 Mar
49
Excellent
Sat
28 Mar
51
Good
Sun
29 Mar
52
Good
Mon
30 Mar
42
Excellent
Air quality in the last 12 months (Hengdong)
|
2026/02
|
48
|
56
|
59
|
77
|
98
|
76
|
63
|
56
|
56
|
57
|
58
|
67
|
65
|
60
|
60
|
24
|
95
|
70
|
56
|
43
|
52
|
63
|
56
|
36
|
49
|
27
|
20
|
22
|
|||
|
2026/01
|
33
|
54
|
63
|
62
|
59
|
79
|
69
|
62
|
66
|
86
|
97
|
92
|
107
|
85
|
100
|
115
|
126
|
142
|
37
|
22
|
53
|
66
|
71
|
49
|
71
|
74
|
138
|
83
|
59
|
33
|
41
|
|
2025/12
|
83
|
108
|
85
|
63
|
77
|
88
|
99
|
121
|
125
|
137
|
121
|
138
|
29
|
55
|
53
|
62
|
77
|
109
|
97
|
86
|
100
|
88
|
52
|
52
|
61
|
60
|
71
|
77
|
88
|
132
|
153
|
|
2025/11
|
58
|
49
|
33
|
40
|
39
|
31
|
59
|
12
|
11
|
18
|
44
|
57
|
47
|
51
|
56
|
65
|
65
|
28
|
33
|
42
|
50
|
56
|
64
|
57
|
59
|
67
|
81
|
84
|
74
|
67
|
|
|
2025/10
|
59
|
53
|
37
|
53
|
45
|
28
|
50
|
56
|
51
|
58
|
67
|
130
|
94
|
59
|
70
|
57
|
48
|
20
|
10
|
11
|
14
|
28
|
38
|
43
|
59
|
76
|
79
|
71
|
79
|
89
|
72
|
|
2025/09
|
27
|
29
|
34
|
37
|
35
|
37
|
43
|
34
|
22
|
26
|
24
|
25
|
26
|
39
|
44
|
42
|
37
|
36
|
31
|
22
|
24
|
24
|
32
|
12
|
15
|
25
|
38
|
50
|
56
|
47
|
|
|
2025/08
|
36
|
42
|
24
|
22
|
21
|
15
|
16
|
21
|
27
|
31
|
39
|
44
|
32
|
23
|
15
|
25
|
26
|
23
|
14
|
18
|
19
|
23
|
28
|
25
|
22
|
25
|
26
|
32
|
27
|
29
|
27
|
|
2025/07
|
18
|
16
|
24
|
30
|
42
|
42
|
48
|
41
|
36
|
24
|
25
|
26
|
31
|
32
|
26
|
25
|
31
|
33
|
30
|
25
|
15
|
14
|
16
|
23
|
25
|
33
|
20
|
22
|
25
|
20
|
26
|
|
2025/06
|
19
|
24
|
39
|
45
|
47
|
38
|
31
|
24
|
36
|
40
|
35
|
22
|
31
|
18
|
14
|
25
|
17
|
14
|
16
|
24
|
24
|
13
|
25
|
20
|
37
|
30
|
17
|
17
|
25
|
21
|
|
|
2025/05
|
59
|
63
|
67
|
62
|
49
|
55
|
74
|
45
|
33
|
53
|
54
|
70
|
61
|
48
|
71
|
23
|
25
|
25
|
29
|
19
|
22
|
27
|
28
|
53
|
55
|
53
|
58
|
15
|
23
|
32
|
17
|
|
2025/04
|
60
|
60
|
66
|
93
|
91
|
86
|
78
|
72
|
79
|
67
|
62
|
240
|
191
|
133
|
87
|
74
|
80
|
65
|
30
|
36
|
39
|
38
|
57
|
31
|
29
|
37
|
34
|
47
|
66
|
56
|
|
|
2025/03
|
35
|
35
|
15
|
30
|
43
|
52
|
55
|
49
|
50
|
46
|
47
|
58
|
64
|
22
|
24
|
48
|
47
|
41
|
44
|
55
|
60
|
59
|
81
|
81
|
77
|
83
|
85
|
61
|
51
|
21
|
51
|
|
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