Air Quality
Excellent
No health implications.
26
PM2.5
29
PM10
107
O3
0.4
CO
10
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Apr
95
Good
Sat
18 Apr
82
Good
Sun
19 Apr
108
Light
Mon
20 Apr
63
Good
Tue
21 Apr
67
Good
Wed
22 Apr
86
Good
Thu
23 Apr
93
Good
Real-time AQI (Monitoring Station in Huludao)
化工街
3826
PM2.5
29
PM10
107
O3
0.4
CO
10
SO2
13
NO2
Air quality in the last 12 months (Huludao)
|
2026/03
|
68
|
82
|
137
|
60
|
37
|
32
|
30
|
60
|
27
|
40
|
88
|
68
|
58
|
41
|
91
|
81
|
107
|
34
|
49
|
37
|
91
|
155
|
168
|
174
|
141
|
167
|
32
|
52
|
64
|
38
|
51
|
|
2026/02
|
78
|
42
|
92
|
133
|
111
|
32
|
42
|
37
|
79
|
83
|
71
|
150
|
209
|
121
|
47
|
64
|
193
|
20
|
71
|
123
|
113
|
63
|
41
|
83
|
92
|
59
|
45
|
36
|
|||
|
2026/01
|
58
|
78
|
90
|
82
|
65
|
71
|
33
|
60
|
109
|
42
|
23
|
55
|
24
|
51
|
73
|
32
|
33
|
37
|
35
|
45
|
61
|
67
|
69
|
82
|
51
|
91
|
81
|
52
|
78
|
62
|
59
|
|
2025/12
|
33
|
33
|
60
|
60
|
54
|
126
|
60
|
28
|
99
|
120
|
35
|
55
|
82
|
80
|
114
|
73
|
78
|
103
|
159
|
41
|
35
|
49
|
55
|
44
|
34
|
38
|
94
|
150
|
41
|
50
|
36
|
|
2025/11
|
55
|
31
|
52
|
61
|
127
|
71
|
63
|
64
|
41
|
48
|
43
|
87
|
49
|
95
|
184
|
75
|
39
|
58
|
77
|
42
|
46
|
86
|
141
|
127
|
24
|
66
|
38
|
77
|
89
|
42
|
|
|
2025/10
|
94
|
73
|
47
|
51
|
47
|
29
|
51
|
30
|
31
|
35
|
43
|
41
|
57
|
108
|
76
|
42
|
48
|
26
|
31
|
40
|
44
|
57
|
54
|
68
|
109
|
43
|
50
|
71
|
120
|
70
|
53
|
|
2025/09
|
55
|
63
|
87
|
58
|
41
|
30
|
47
|
24
|
47
|
26
|
47
|
41
|
39
|
44
|
33
|
47
|
27
|
27
|
51
|
45
|
44
|
46
|
36
|
37
|
38
|
92
|
78
|
55
|
72
|
75
|
|
|
2025/08
|
33
|
27
|
33
|
22
|
30
|
41
|
36
|
29
|
26
|
31
|
51
|
42
|
30
|
55
|
30
|
42
|
34
|
43
|
60
|
25
|
44
|
23
|
47
|
24
|
22
|
29
|
39
|
21
|
33
|
45
|
24
|
|
2025/07
|
59
|
46
|
22
|
39
|
78
|
28
|
41
|
44
|
37
|
43
|
45
|
37
|
24
|
29
|
29
|
29
|
23
|
26
|
34
|
29
|
40
|
54
|
25
|
28
|
40
|
44
|
33
|
43
|
21
|
23
|
38
|
|
2025/06
|
34
|
68
|
44
|
30
|
51
|
49
|
28
|
40
|
44
|
27
|
58
|
33
|
25
|
23
|
22
|
21
|
32
|
45
|
46
|
32
|
29
|
40
|
69
|
33
|
41
|
44
|
55
|
31
|
93
|
64
|
|
|
2025/05
|
52
|
38
|
38
|
35
|
42
|
39
|
44
|
51
|
42
|
44
|
75
|
76
|
61
|
54
|
60
|
38
|
37
|
37
|
58
|
76
|
60
|
74
|
48
|
48
|
42
|
56
|
84
|
52
|
45
|
51
|
50
|
|
2025/04
|
82
|
31
|
43
|
55
|
45
|
62
|
79
|
42
|
33
|
71
|
56
|
55
|
25
|
18
|
53
|
60
|
65
|
23
|
40
|
63
|
40
|
30
|
53
|
44
|
41
|
63
|
33
|
42
|
64
|
83
|
|
|
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