Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Apr
Thu
25 Apr
Fri
26 Apr
Sat
27 Apr
Sun
28 Apr
Mon
29 Apr
Real-time AQI (Monitoring Station in Huludao)
龙港区
1812
PM2.5
17
PM10
56
O3
0.6
CO
11
SO2
16
NO2
化工街
207
PM2.5
7
PM10
64
O3
0.6
CO
13
SO2
13
NO2
新区
2011
PM2.5
16
PM10
63
O3
0.7
CO
6
SO2
11
NO2
Air quality in the last 12 months (Huludao)
|
2024/02
|
39
|
76
|
60
|
63
|
31
|
64
|
89
|
80
|
180
|
215
|
93
|
146
|
134
|
61
|
39
|
55
|
52
|
44
|
40
|
34
|
33
|
30
|
37
|
77
|
73
|
62
|
76
|
66
|
49
|
||
|
2024/01
|
105
|
201
|
117
|
109
|
50
|
53
|
37
|
67
|
43
|
61
|
91
|
69
|
43
|
58
|
80
|
90
|
106
|
36
|
33
|
32
|
30
|
25
|
56
|
60
|
78
|
90
|
70
|
106
|
69
|
113
|
56
|
|
2023/12
|
53
|
58
|
77
|
109
|
152
|
58
|
105
|
118
|
36
|
36
|
35
|
47
|
51
|
110
|
68
|
32
|
44
|
108
|
88
|
32
|
39
|
52
|
96
|
147
|
90
|
69
|
90
|
124
|
131
|
186
|
33
|
|
2023/11
|
58
|
113
|
31
|
58
|
73
|
42
|
42
|
70
|
30
|
27
|
38
|
40
|
56
|
84
|
106
|
55
|
29
|
51
|
52
|
61
|
150
|
145
|
40
|
28
|
51
|
49
|
58
|
45
|
33
|
40
|
|
|
2023/10
|
32
|
46
|
49
|
41
|
38
|
52
|
52
|
41
|
28
|
48
|
64
|
76
|
48
|
39
|
41
|
30
|
54
|
42
|
34
|
25
|
26
|
42
|
75
|
103
|
165
|
35
|
66
|
73
|
93
|
73
|
96
|
|
2023/09
|
37
|
52
|
36
|
39
|
56
|
44
|
48
|
46
|
47
|
38
|
48
|
31
|
44
|
49
|
38
|
40
|
48
|
42
|
33
|
35
|
47
|
39
|
36
|
59
|
44
|
49
|
78
|
41
|
61
|
41
|
|
|
2023/08
|
30
|
40
|
50
|
52
|
32
|
22
|
27
|
40
|
34
|
31
|
26
|
25
|
28
|
42
|
41
|
65
|
57
|
46
|
66
|
65
|
29
|
31
|
41
|
48
|
24
|
26
|
40
|
33
|
33
|
33
|
31
|
|
2023/07
|
80
|
66
|
31
|
35
|
65
|
96
|
60
|
43
|
37
|
58
|
53
|
64
|
40
|
39
|
31
|
25
|
41
|
52
|
82
|
88
|
51
|
27
|
35
|
47
|
44
|
49
|
33
|
25
|
16
|
18
|
32
|
|
2023/06
|
73
|
36
|
37
|
48
|
76
|
54
|
71
|
49
|
37
|
38
|
42
|
38
|
43
|
57
|
56
|
64
|
58
|
59
|
57
|
38
|
40
|
61
|
90
|
77
|
41
|
36
|
77
|
61
|
51
|
54
|
|
|
2023/05
|
50
|
69
|
55
|
39
|
46
|
42
|
46
|
50
|
42
|
58
|
72
|
61
|
40
|
54
|
78
|
85
|
46
|
50
|
45
|
159
|
172
|
75
|
52
|
79
|
52
|
70
|
42
|
44
|
53
|
48
|
53
|
|
2023/04
|
91
|
66
|
73
|
61
|
56
|
62
|
40
|
59
|
73
|
91
|
271
|
278
|
269
|
136
|
288
|
66
|
64
|
65
|
57
|
59
|
67
|
56
|
60
|
56
|
45
|
46
|
63
|
52
|
41
|
38
|
|
|
2023/03
|
68
|
78
|
127
|
208
|
113
|
138
|
140
|
77
|
106
|
145
|
59
|
48
|
64
|
123
|
104
|
53
|
46
|
106
|
100
|
120
|
97
|
290
|
171
|
55
|
58
|
67
|
87
|
84
|
112
|
149
|
112
|
|
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
*: primary pollution