Air Quality
Excellent
No health implications.
33
PM2.5
41
PM10
76
O3
0.9
CO
7
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Dec
71
Good
Tue
16 Dec
89
Good
Wed
17 Dec
143
Light
Thu
18 Dec
150
Light
Fri
19 Dec
160
Moderate
Sat
20 Dec
180
Moderate
Sun
21 Dec
46
Excellent
Air quality in the last 12 months (Heshan)
|
2025/11
|
57
|
35
|
26
|
36
|
52
|
38
|
58
|
26
|
29
|
24
|
51
|
50
|
51
|
67
|
81
|
74
|
59
|
29
|
35
|
46
|
49
|
64
|
71
|
52
|
53
|
51
|
66
|
62
|
58
|
64
|
|
|
2025/10
|
58
|
41
|
36
|
40
|
54
|
57
|
73
|
91
|
71
|
37
|
162
|
103
|
41
|
48
|
42
|
44
|
27
|
15
|
16
|
16
|
25
|
34
|
40
|
48
|
92
|
88
|
78
|
69
|
92
|
91
|
59
|
|
2025/09
|
41
|
40
|
34
|
35
|
27
|
33
|
36
|
48
|
35
|
31
|
26
|
24
|
37
|
51
|
37
|
29
|
35
|
26
|
17
|
21
|
36
|
34
|
25
|
16
|
17
|
25
|
29
|
40
|
42
|
50
|
|
|
2025/08
|
37
|
39
|
39
|
23
|
22
|
25
|
15
|
17
|
20
|
27
|
30
|
38
|
15
|
28
|
16
|
19
|
21
|
26
|
15
|
13
|
14
|
18
|
18
|
19
|
23
|
18
|
20
|
20
|
20
|
44
|
18
|
|
2025/07
|
14
|
14
|
15
|
16
|
28
|
40
|
39
|
41
|
42
|
21
|
33
|
28
|
23
|
25
|
26
|
22
|
30
|
41
|
38
|
36
|
24
|
16
|
14
|
18
|
26
|
35
|
29
|
23
|
25
|
25
|
23
|
|
2025/06
|
13
|
41
|
40
|
45
|
43
|
45
|
30
|
34
|
31
|
35
|
34
|
33
|
23
|
25
|
24
|
25
|
19
|
15
|
21
|
20
|
20
|
18
|
15
|
19
|
22
|
29
|
28
|
16
|
18
|
16
|
|
|
2025/05
|
36
|
46
|
56
|
55
|
50
|
56
|
78
|
38
|
33
|
44
|
27
|
36
|
41
|
76
|
50
|
33
|
36
|
64
|
47
|
18
|
25
|
37
|
42
|
57
|
56
|
45
|
59
|
24
|
23
|
24
|
24
|
|
2025/04
|
50
|
48
|
52
|
59
|
71
|
56
|
60
|
66
|
67
|
67
|
51
|
179
|
108
|
101
|
73
|
58
|
62
|
63
|
43
|
67
|
41
|
36
|
45
|
42
|
49
|
33
|
39
|
48
|
56
|
27
|
|
|
2025/03
|
55
|
39
|
26
|
45
|
56
|
63
|
63
|
61
|
67
|
57
|
54
|
84
|
82
|
45
|
37
|
51
|
45
|
38
|
42
|
42
|
42
|
53
|
56
|
39
|
51
|
63
|
76
|
47
|
51
|
38
|
42
|
|
2025/02
|
76
|
70
|
91
|
76
|
60
|
59
|
65
|
40
|
44
|
63
|
78
|
82
|
101
|
84
|
57
|
70
|
53
|
45
|
65
|
104
|
122
|
63
|
100
|
109
|
78
|
105
|
60
|
70
|
|||
|
2025/01
|
140
|
190
|
202
|
254
|
91
|
87
|
99
|
78
|
73
|
70
|
66
|
83
|
93
|
137
|
67
|
71
|
85
|
101
|
115
|
115
|
115
|
153
|
288
|
171
|
28
|
41
|
54
|
107
|
244
|
123
|
104
|
|
2024/12
|
66
|
90
|
167
|
134
|
60
|
68
|
71
|
108
|
83
|
90
|
79
|
127
|
97
|
52
|
59
|
71
|
91
|
113
|
90
|
115
|
125
|
84
|
81
|
101
|
138
|
165
|
193
|
127
|
91
|
162
|
154
|
|
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