Air Quality
Excellent
No health implications.
23
PM2.5
34
PM10
59
O3
0.5
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jan
61
Good
Sat
31 Jan
72
Good
Sun
1 Feb
84
Good
Mon
2 Feb
77
Good
Tue
3 Feb
72
Good
Wed
4 Feb
59
Good
Thu
5 Feb
28
Excellent
Air quality in the last 12 months (Hailun)
|
2025/12
|
46
|
34
|
53
|
45
|
49
|
65
|
85
|
60
|
56
|
38
|
30
|
39
|
75
|
97
|
60
|
39
|
70
|
78
|
63
|
40
|
56
|
61
|
55
|
63
|
47
|
44
|
81
|
92
|
43
|
43
|
33
|
|
2025/11
|
168
|
19
|
50
|
57
|
137
|
97
|
17
|
79
|
70
|
21
|
34
|
69
|
28
|
45
|
75
|
63
|
24
|
48
|
152
|
80
|
74
|
206
|
256
|
40
|
37
|
197
|
94
|
82
|
54
|
30
|
|
|
2025/10
|
34
|
35
|
47
|
27
|
18
|
26
|
35
|
21
|
33
|
36
|
42
|
21
|
37
|
30
|
51
|
41
|
109
|
18
|
21
|
20
|
31
|
32
|
35
|
46
|
125
|
57
|
40
|
42
|
123
|
88
|
75
|
|
2025/09
|
19
|
19
|
29
|
43
|
38
|
17
|
20
|
18
|
15
|
21
|
19
|
29
|
25
|
25
|
16
|
16
|
15
|
18
|
26
|
22
|
17
|
24
|
35
|
21
|
13
|
19
|
23
|
27
|
27
|
47
|
|
|
2025/08
|
20
|
20
|
12
|
13
|
17
|
13
|
10
|
17
|
13
|
10
|
12
|
17
|
14
|
12
|
18
|
9
|
15
|
19
|
17
|
16
|
21
|
11
|
19
|
15
|
26
|
16
|
21
|
23
|
21
|
17
|
31
|
|
2025/07
|
20
|
18
|
19
|
20
|
14
|
15
|
15
|
21
|
19
|
25
|
34
|
21
|
14
|
17
|
20
|
16
|
18
|
15
|
21
|
16
|
13
|
21
|
26
|
28
|
15
|
21
|
18
|
17
|
14
|
11
|
15
|
|
2025/06
|
14
|
20
|
20
|
17
|
16
|
12
|
16
|
24
|
15
|
16
|
12
|
26
|
32
|
18
|
21
|
19
|
14
|
25
|
17
|
15
|
11
|
16
|
26
|
34
|
40
|
42
|
46
|
31
|
19
|
33
|
|
|
2025/05
|
52
|
34
|
29
|
24
|
20
|
26
|
31
|
38
|
19
|
27
|
48
|
80
|
58
|
37
|
63
|
25
|
16
|
21
|
19
|
19
|
15
|
14
|
23
|
21
|
24
|
34
|
36
|
48
|
45
|
46
|
45
|
|
2025/04
|
68
|
50
|
54
|
51
|
49
|
52
|
57
|
45
|
60
|
95
|
69
|
83
|
32
|
21
|
15
|
20
|
61
|
49
|
23
|
85
|
128
|
16
|
31
|
24
|
13
|
17
|
57
|
68
|
69
|
53
|
|
|
2025/03
|
21
|
30
|
44
|
46
|
49
|
52
|
44
|
35
|
61
|
105
|
45
|
46
|
18
|
18
|
21
|
24
|
21
|
24
|
39
|
66
|
13
|
10
|
28
|
29
|
21
|
28
|
16
|
17
|
14
|
21
|
44
|
|
2025/02
|
100
|
153
|
134
|
50
|
48
|
57
|
35
|
25
|
48
|
75
|
92
|
99
|
75
|
44
|
44
|
36
|
26
|
28
|
30
|
35
|
34
|
32
|
47
|
38
|
47
|
33
|
57
|
47
|
|||
|
2025/01
|
151
|
150
|
128
|
177
|
95
|
82
|
100
|
38
|
55
|
125
|
154
|
196
|
145
|
169
|
66
|
54
|
74
|
92
|
144
|
126
|
112
|
103
|
179
|
235
|
213
|
127
|
71
|
67
|
70
|
49
|
75
|
|
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