Air Quality
Excellent
No health implications.
12
PM2.5
15
PM10
79
O3
0.4
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Jun
70
Good
Wed
25 Jun
48
Excellent
Thu
26 Jun
70
Good
Fri
27 Jun
86
Good
Sat
28 Jun
95
Good
Sun
29 Jun
89
Good
Mon
30 Jun
40
Excellent
Air quality in the last 12 months (Hechuan)
|
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
|
|
2024/11
|
54
|
64
|
87
|
71
|
49
|
57
|
80
|
105
|
46
|
58
|
62
|
87
|
60
|
55
|
61
|
28
|
14
|
16
|
22
|
24
|
37
|
42
|
42
|
35
|
23
|
40
|
39
|
50
|
80
|
99
|
|
|
2024/10
|
23
|
31
|
37
|
53
|
73
|
62
|
48
|
57
|
86
|
104
|
73
|
40
|
52
|
56
|
81
|
117
|
29
|
49
|
49
|
17
|
24
|
26
|
58
|
93
|
100
|
96
|
38
|
70
|
110
|
106
|
96
|
|
2024/09
|
44
|
44
|
32
|
30
|
50
|
49
|
51
|
35
|
30
|
36
|
38
|
40
|
37
|
76
|
39
|
28
|
41
|
49
|
48
|
53
|
26
|
47
|
43
|
61
|
91
|
107
|
73
|
48
|
40
|
11
|
|
|
2024/08
|
35
|
31
|
21
|
28
|
34
|
34
|
35
|
26
|
31
|
35
|
55
|
68
|
73
|
76
|
85
|
65
|
66
|
73
|
63
|
67
|
68
|
46
|
31
|
33
|
21
|
34
|
52
|
40
|
34
|
39
|
28
|
|
2024/07
|
33
|
36
|
42
|
36
|
19
|
33
|
26
|
35
|
41
|
22
|
26
|
27
|
33
|
22
|
27
|
26
|
28
|
37
|
33
|
24
|
31
|
31
|
30
|
26
|
72
|
60
|
38
|
44
|
37
|
34
|
41
|
|
2024/06
|
68
|
31
|
41
|
28
|
39
|
31
|
40
|
39
|
33
|
39
|
46
|
40
|
54
|
57
|
58
|
43
|
35
|
29
|
33
|
31
|
23
|
40
|
45
|
46
|
43
|
40
|
19
|
20
|
29
|
40
|
|
|
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