Air Quality
Excellent
No health implications.
14
PM2.5
17
PM10
84
O3
0.5
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Mar
59
Good
Fri
13 Mar
53
Good
Sat
14 Mar
38
Excellent
Sun
15 Mar
42
Excellent
Mon
16 Mar
42
Excellent
Tue
17 Mar
43
Excellent
Wed
18 Mar
18
Excellent
Air quality in the last 12 months (Hechuan)
|
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
|
|
2025/04
|
38
|
53
|
64
|
64
|
67
|
84
|
76
|
75
|
85
|
88
|
50
|
358
|
251
|
147
|
107
|
89
|
89
|
83
|
61
|
39
|
48
|
46
|
57
|
52
|
56
|
49
|
41
|
53
|
51
|
45
|
|
|
2025/03
|
120
|
83
|
34
|
28
|
21
|
25
|
37
|
54
|
69
|
62
|
68
|
83
|
73
|
70
|
39
|
32
|
28
|
36
|
46
|
55
|
72
|
107
|
89
|
63
|
67
|
84
|
119
|
61
|
22
|
31
|
32
|
|
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