Heilongjiang - China   2025-10-21   Tuesday   44.57N, 129.39E

Hailin

Heilongjiang - China
2025-10-21

Air Quality

Excellent

No health implications.

26

PM2.5

40

PM10

51

O3

0.4

CO

3

SO2

28

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

21 Oct

62 Good

Wed

22 Oct

60 Good

Thu

23 Oct

62 Good

Fri

24 Oct

58 Good

Sat

25 Oct

63 Good

Sun

26 Oct

61 Good

Mon

27 Oct

23 Excellent

Monthly Average AQI (Hailin)

2020/09 - 2025/08

Air quality in the last 12 months (Hailin)

2025/08
27
29
26
25
21
21
22
23
23
23
23
26
22
23
25
29
23
22
24
22
18
19
24
20
21
16
18
20
20
22
32
2025/07
14
20
26
29
28
28
25
29
29
32
31
24
26
25
24
24
20
20
24
25
26
28
28
24
23
22
20
24
20
22
26
2025/06
36
27
21
17
26
22
17
17
24
18
17
19
20
27
24
18
19
24
23
22
18
20
25
33
29
28
33
30
20
22
2025/05
26
27
26
23
24
25
32
42
36
21
34
39
43
32
24
27
26
25
22
28
37
32
17
21
17
22
28
31
31
32
39
2025/04
52
45
48
57
56
30
25
38
52
63
85
57
29
23
25
31
70
51
28
49
67
28
22
43
43
26
34
56
71
47
2025/03
43
31
36
40
39
39
42
61
84
77
92
74
35
34
32
31
34
44
67
72
87
24
33
55
52
66
46
28
31
36
50
2025/02
68
102
61
53
48
47
51
46
48
60
72
68
47
61
74
68
48
39
45
47
45
45
45
44
66
46
62
75
2025/01
79
67
57
70
95
96
75
74
47
63
97
99
100
81
53
46
73
93
88
117
136
134
98
100
105
140
68
64
76
50
50
2024/12
68
51
38
34
41
38
42
53
77
73
44
58
57
52
37
45
53
50
63
86
60
57
50
67
62
45
39
47
58
83
61
2024/11
59
62
50
46
38
58
84
88
89
58
78
69
74
80
73
54
39
43
54
72
73
53
58
67
82
51
41
49
40
47
2024/10
30
36
35
35
42
48
36
48
50
39
31
37
49
44
32
35
52
53
34
39
39
45
42
54
66
51
46
54
60
64
75
2024/09
23
28
26
26
24
28
33
27
23
24
31
28
31
26
28
34
28
29
36
35
29
33
31
34
34
29
35
40
32
28
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