Air Quality
Excellent
No health implications.
17
PM2.5
24
PM10
52
O3
0.4
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Oct
56
Good
Wed
15 Oct
52
Good
Thu
16 Oct
53
Good
Fri
17 Oct
47
Excellent
Sat
18 Oct
49
Excellent
Sun
19 Oct
41
Excellent
Mon
20 Oct
18
Excellent
Air quality in the last 12 months (Heshui)
|
2025/08
|
31
|
34
|
33
|
28
|
31
|
40
|
27
|
26
|
20
|
26
|
38
|
36
|
33
|
38
|
27
|
17
|
17
|
22
|
19
|
46
|
43
|
42
|
14
|
19
|
27
|
32
|
16
|
16
|
17
|
21
|
24
|
|
2025/07
|
24
|
17
|
15
|
20
|
22
|
27
|
21
|
20
|
20
|
26
|
30
|
35
|
35
|
32
|
40
|
36
|
28
|
34
|
43
|
22
|
24
|
31
|
22
|
18
|
16
|
16
|
20
|
28
|
30
|
26
|
32
|
|
2025/06
|
29
|
38
|
34
|
39
|
31
|
41
|
56
|
35
|
48
|
41
|
50
|
47
|
50
|
56
|
45
|
63
|
49
|
34
|
29
|
31
|
36
|
36
|
28
|
36
|
26
|
25
|
24
|
29
|
29
|
21
|
|
|
2025/05
|
107
|
121
|
57
|
82
|
279
|
288
|
110
|
88
|
101
|
50
|
43
|
49
|
54
|
79
|
61
|
90
|
272
|
79
|
56
|
54
|
58
|
92
|
49
|
50
|
31
|
28
|
39
|
45
|
45
|
64
|
33
|
|
2025/04
|
60
|
61
|
84
|
123
|
80
|
87
|
72
|
110
|
108
|
59
|
190
|
237
|
109
|
56
|
49
|
185
|
85
|
92
|
91
|
65
|
114
|
125
|
68
|
54
|
60
|
49
|
46
|
28
|
61
|
161
|
|
|
2025/03
|
85
|
45
|
36
|
39
|
53
|
47
|
73
|
70
|
63
|
59
|
294
|
255
|
78
|
41
|
82
|
39
|
42
|
38
|
39
|
52
|
57
|
62
|
117
|
232
|
109
|
312
|
167
|
111
|
54
|
62
|
59
|
|
2025/02
|
107
|
48
|
34
|
38
|
36
|
65
|
64
|
42
|
56
|
55
|
68
|
67
|
53
|
52
|
51
|
77
|
70
|
63
|
57
|
67
|
76
|
56
|
29
|
49
|
68
|
56
|
56
|
62
|
|||
|
2025/01
|
54
|
56
|
61
|
79
|
63
|
38
|
38
|
36
|
46
|
52
|
86
|
78
|
129
|
45
|
35
|
55
|
59
|
57
|
62
|
57
|
67
|
89
|
176
|
188
|
57
|
83
|
59
|
71
|
101
|
93
|
69
|
|
2024/12
|
45
|
46
|
57
|
52
|
43
|
41
|
33
|
38
|
66
|
53
|
83
|
60
|
53
|
42
|
49
|
60
|
52
|
37
|
66
|
54
|
39
|
51
|
64
|
79
|
67
|
59
|
44
|
44
|
53
|
51
|
52
|
|
2024/11
|
42
|
34
|
47
|
42
|
54
|
69
|
81
|
81
|
83
|
68
|
77
|
60
|
39
|
33
|
59
|
52
|
38
|
29
|
36
|
46
|
59
|
51
|
83
|
52
|
42
|
53
|
60
|
54
|
36
|
37
|
|
|
2024/10
|
47
|
38
|
46
|
42
|
55
|
53
|
42
|
67
|
56
|
46
|
53
|
55
|
54
|
54
|
55
|
60
|
47
|
33
|
19
|
23
|
19
|
26
|
43
|
49
|
54
|
48
|
41
|
42
|
52
|
43
|
37
|
|
2024/09
|
47
|
32
|
31
|
35
|
24
|
36
|
27
|
31
|
39
|
40
|
39
|
32
|
26
|
28
|
40
|
34
|
35
|
33
|
29
|
32
|
24
|
34
|
49
|
59
|
44
|
56
|
65
|
60
|
30
|
43
|
|
|
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