Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
42
PM2.5
69
*
PM10
14
O3
0.8
CO
8
SO2
32
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
22 Jan
47
Excellent
Fri
23 Jan
61
Good
Sat
24 Jan
73
Good
Sun
25 Jan
77
Good
Mon
26 Jan
69
Good
Tue
27 Jan
68
Good
Wed
28 Jan
27
Excellent
Hechuan Air quality rank
Air quality in the last 12 months (Hechuan)
|
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
|
|
2025/02
|
100
|
67
|
47
|
37
|
66
|
52
|
37
|
41
|
57
|
75
|
136
|
88
|
51
|
42
|
44
|
62
|
61
|
58
|
81
|
61
|
52
|
62
|
43
|
48
|
65
|
84
|
95
|
73
|
|||
|
2025/01
|
189
|
215
|
237
|
167
|
108
|
117
|
119
|
43
|
51
|
44
|
58
|
61
|
97
|
129
|
114
|
98
|
135
|
122
|
138
|
154
|
226
|
234
|
246
|
98
|
31
|
46
|
59
|
86
|
291
|
216
|
122
|
|
2024/12
|
116
|
139
|
113
|
74
|
35
|
29
|
36
|
35
|
46
|
62
|
59
|
55
|
50
|
58
|
75
|
87
|
138
|
165
|
132
|
104
|
135
|
104
|
91
|
104
|
130
|
128
|
150
|
145
|
177
|
123
|
134
|
|
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