Air Quality
Excellent
No health implications.
12
PM2.5
23
PM10
52
O3
0.6
CO
5
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Apr
52
Good
Thu
16 Apr
47
Excellent
Fri
17 Apr
77
Good
Sat
18 Apr
83
Good
Sun
19 Apr
79
Good
Mon
20 Apr
69
Good
Tue
21 Apr
33
Excellent
Hengdong Air quality rank
Air quality in the last 12 months (Hengdong)
|
2026/03
|
12
|
22
|
46
|
65
|
48
|
53
|
68
|
41
|
37
|
66
|
47
|
54
|
57
|
57
|
104
|
33
|
40
|
23
|
34
|
26
|
35
|
34
|
28
|
29
|
73
|
33
|
40
|
43
|
44
|
27
|
30
|
|
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
|
|
|
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