Air Quality
Excellent
No health implications.
19
PM2.5
45
PM10
76
O3
1.5
CO
9
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Jun
49
Excellent
Fri
27 Jun
47
Excellent
Sat
28 Jun
49
Excellent
Sun
29 Jun
51
Good
Mon
30 Jun
62
Good
Tue
1 Jul
47
Excellent
Wed
2 Jul
25
Excellent
Air quality in the last 12 months (Hengdong)
|
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
|
|
2025/02
|
40
|
31
|
55
|
62
|
67
|
77
|
66
|
54
|
47
|
50
|
70
|
77
|
104
|
121
|
58
|
46
|
58
|
43
|
37
|
27
|
87
|
30
|
45
|
83
|
110
|
98
|
60
|
46
|
|||
|
2025/01
|
145
|
124
|
169
|
187
|
142
|
101
|
91
|
84
|
60
|
60
|
66
|
83
|
81
|
75
|
90
|
68
|
79
|
86
|
116
|
106
|
112
|
113
|
176
|
230
|
31
|
32
|
54
|
79
|
224
|
119
|
57
|
|
2024/12
|
66
|
73
|
92
|
130
|
43
|
46
|
58
|
75
|
93
|
70
|
57
|
79
|
99
|
64
|
60
|
72
|
79
|
85
|
100
|
124
|
117
|
107
|
90
|
107
|
136
|
130
|
149
|
119
|
97
|
124
|
133
|
|
2024/11
|
72
|
118
|
92
|
90
|
105
|
72
|
65
|
53
|
63
|
85
|
64
|
78
|
66
|
90
|
88
|
107
|
23
|
13
|
21
|
39
|
54
|
55
|
67
|
84
|
40
|
29
|
42
|
48
|
53
|
58
|
|
|
2024/10
|
33
|
52
|
54
|
51
|
52
|
77
|
74
|
55
|
57
|
64
|
74
|
81
|
162
|
78
|
51
|
46
|
49
|
44
|
30
|
33
|
46
|
24
|
37
|
44
|
54
|
72
|
66
|
89
|
80
|
55
|
57
|
|
2024/09
|
45
|
45
|
50
|
47
|
44
|
45
|
33
|
31
|
39
|
37
|
42
|
35
|
28
|
41
|
40
|
43
|
48
|
47
|
42
|
44
|
36
|
33
|
38
|
46
|
60
|
63
|
63
|
57
|
47
|
50
|
|
|
2024/08
|
18
|
19
|
29
|
30
|
34
|
30
|
28
|
29
|
35
|
35
|
27
|
30
|
26
|
31
|
36
|
35
|
42
|
48
|
30
|
37
|
47
|
23
|
24
|
27
|
34
|
34
|
40
|
26
|
30
|
35
|
45
|
|
2024/07
|
19
|
17
|
25
|
17
|
15
|
17
|
20
|
17
|
21
|
22
|
23
|
26
|
23
|
19
|
28
|
19
|
16
|
16
|
17
|
21
|
24
|
28
|
28
|
38
|
41
|
33
|
20
|
11
|
16
|
15
|
16
|
|
2024/06
|
22
|
27
|
35
|
20
|
22
|
32
|
39
|
38
|
40
|
25
|
25
|
20
|
19
|
22
|
20
|
26
|
14
|
18
|
18
|
23
|
22
|
21
|
23
|
20
|
9
|
16
|
25
|
25
|
19
|
21
|
|
|
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