Air Quality
Excellent
No health implications.
32
PM2.5
45
PM10
102
O3
0.4
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
106
Light
Wed
30 Apr
106
Light
Thu
1 May
117
Light
Fri
2 May
127
Light
Sat
3 May
137
Light
Sun
4 May
94
Good
Mon
5 May
33
Excellent
Air quality in the last 12 months (Heshan)
|
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
|
|
2024/11
|
108
|
142
|
117
|
116
|
116
|
106
|
80
|
98
|
136
|
88
|
93
|
115
|
115
|
131
|
152
|
145
|
22
|
21
|
40
|
47
|
51
|
73
|
113
|
130
|
43
|
37
|
39
|
41
|
52
|
55
|
|
|
2024/10
|
34
|
55
|
72
|
83
|
83
|
97
|
73
|
55
|
59
|
80
|
116
|
203
|
111
|
65
|
61
|
118
|
96
|
38
|
34
|
52
|
31
|
34
|
36
|
48
|
77
|
68
|
84
|
127
|
135
|
107
|
83
|
|
2024/09
|
49
|
44
|
68
|
71
|
59
|
61
|
67
|
51
|
45
|
54
|
53
|
52
|
60
|
59
|
80
|
67
|
60
|
53
|
53
|
85
|
52
|
30
|
38
|
66
|
70
|
97
|
112
|
78
|
54
|
53
|
|
|
2024/08
|
28
|
29
|
21
|
24
|
29
|
31
|
32
|
28
|
30
|
39
|
49
|
56
|
41
|
53
|
47
|
43
|
50
|
44
|
40
|
44
|
43
|
37
|
27
|
28
|
29
|
41
|
41
|
31
|
51
|
50
|
53
|
|
2024/07
|
36
|
38
|
30
|
23
|
21
|
20
|
19
|
21
|
23
|
45
|
59
|
35
|
35
|
34
|
28
|
26
|
19
|
22
|
17
|
27
|
26
|
20
|
18
|
30
|
43
|
43
|
42
|
44
|
24
|
23
|
24
|
|
2024/06
|
44
|
37
|
62
|
30
|
32
|
41
|
45
|
56
|
37
|
37
|
34
|
41
|
39
|
39
|
42
|
32
|
45
|
49
|
33
|
41
|
38
|
36
|
45
|
38
|
33
|
28
|
25
|
37
|
29
|
24
|
|
|
2024/05
|
42
|
58
|
34
|
30
|
39
|
39
|
63
|
71
|
54
|
59
|
67
|
86
|
75
|
58
|
58
|
62
|
58
|
54
|
49
|
43
|
61
|
65
|
58
|
45
|
44
|
40
|
48
|
20
|
38
|
33
|
45
|
|
2024/04
|
46
|
30
|
66
|
77
|
75
|
67
|
66
|
61
|
60
|
61
|
68
|
48
|
50
|
47
|
66
|
47
|
59
|
59
|
46
|
40
|
57
|
69
|
44
|
61
|
74
|
52
|
56
|
52
|
55
|
35
|
|
|
2024/03
|
106
|
82
|
59
|
67
|
116
|
124
|
93
|
96
|
74
|
102
|
76
|
60
|
106
|
119
|
90
|
87
|
82
|
47
|
54
|
68
|
64
|
51
|
41
|
64
|
35
|
46
|
57
|
41
|
29
|
38
|
44
|
|
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