Air Quality
Excellent
No health implications.
7
PM2.5
10
PM10
76
O3
0.4
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 May
51
Good
Sat
9 May
57
Good
Sun
10 May
70
Good
Mon
11 May
81
Good
Tue
12 May
84
Good
Wed
13 May
24
Excellent
Thu
14 May
33
Excellent
Air quality in the last 12 months (Hechuan)
|
2026/04
|
35
|
39
|
33
|
48
|
60
|
52
|
38
|
32
|
31
|
46
|
33
|
33
|
40
|
32
|
25
|
33
|
44
|
50
|
65
|
76
|
25
|
19
|
31
|
45
|
57
|
66
|
40
|
22
|
22
|
31
|
|
|
2026/03
|
28
|
34
|
38
|
33
|
55
|
51
|
38
|
36
|
37
|
32
|
54
|
51
|
56
|
35
|
21
|
23
|
21
|
21
|
32
|
34
|
43
|
45
|
40
|
26
|
36
|
31
|
47
|
37
|
43
|
25
|
24
|
|
2026/02
|
66
|
115
|
133
|
110
|
138
|
141
|
126
|
60
|
60
|
73
|
90
|
104
|
106
|
107
|
103
|
66
|
115
|
103
|
114
|
96
|
101
|
110
|
122
|
39
|
68
|
53
|
54
|
23
|
|||
|
2026/01
|
31
|
27
|
43
|
54
|
68
|
68
|
85
|
102
|
136
|
165
|
204
|
207
|
154
|
179
|
176
|
217
|
197
|
225
|
99
|
19
|
30
|
57
|
67
|
69
|
83
|
84
|
73
|
142
|
119
|
30
|
44
|
|
2025/12
|
149
|
173
|
95
|
64
|
77
|
77
|
88
|
96
|
139
|
131
|
102
|
95
|
39
|
58
|
76
|
106
|
135
|
148
|
140
|
74
|
33
|
39
|
29
|
41
|
42
|
40
|
70
|
81
|
103
|
112
|
68
|
|
2025/11
|
44
|
50
|
59
|
44
|
55
|
38
|
21
|
22
|
23
|
20
|
31
|
42
|
50
|
57
|
30
|
46
|
24
|
21
|
45
|
60
|
76
|
99
|
72
|
72
|
72
|
77
|
102
|
104
|
107
|
130
|
|
|
2025/10
|
38
|
20
|
22
|
19
|
22
|
27
|
41
|
37
|
32
|
54
|
51
|
27
|
17
|
27
|
31
|
32
|
22
|
23
|
16
|
13
|
16
|
23
|
26
|
34
|
30
|
33
|
35
|
49
|
55
|
36
|
46
|
|
2025/09
|
71
|
80
|
49
|
59
|
57
|
20
|
33
|
20
|
32
|
40
|
37
|
22
|
17
|
32
|
42
|
38
|
31
|
24
|
16
|
29
|
20
|
18
|
17
|
27
|
41
|
37
|
32
|
25
|
12
|
29
|
|
|
2025/08
|
32
|
32
|
32
|
38
|
48
|
44
|
25
|
37
|
32
|
32
|
19
|
24
|
28
|
35
|
35
|
18
|
24
|
40
|
27
|
19
|
25
|
31
|
25
|
27
|
35
|
27
|
21
|
23
|
23
|
46
|
33
|
|
2025/07
|
25
|
14
|
13
|
15
|
20
|
31
|
33
|
16
|
18
|
23
|
25
|
30
|
45
|
39
|
34
|
39
|
43
|
33
|
31
|
28
|
30
|
18
|
16
|
17
|
15
|
19
|
25
|
30
|
39
|
38
|
32
|
|
2025/06
|
27
|
27
|
47
|
56
|
51
|
52
|
46
|
26
|
19
|
42
|
46
|
44
|
45
|
40
|
40
|
39
|
32
|
23
|
15
|
35
|
24
|
20
|
17
|
24
|
16
|
26
|
26
|
28
|
20
|
15
|
|
|
2025/05
|
51
|
74
|
95
|
57
|
42
|
75
|
76
|
39
|
60
|
61
|
54
|
65
|
68
|
90
|
88
|
79
|
77
|
81
|
78
|
65
|
80
|
47
|
58
|
65
|
47
|
41
|
22
|
24
|
28
|
29
|
33
|
|
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