Air Quality
Excellent
No health implications.
23
PM2.5
25
PM10
28
O3
0.7
CO
9
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Mar
46
Excellent
Wed
5 Mar
43
Excellent
Thu
6 Mar
39
Excellent
Fri
7 Mar
45
Excellent
Sat
8 Mar
56
Good
Sun
9 Mar
23
Excellent
Mon
10 Mar
33
Excellent
Air quality in the last 12 months (Hechuan)
|
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
|
|
|
2024/05
|
34
|
38
|
39
|
49
|
49
|
89
|
92
|
79
|
60
|
46
|
53
|
47
|
51
|
60
|
55
|
56
|
58
|
65
|
48
|
18
|
21
|
30
|
36
|
46
|
36
|
30
|
40
|
40
|
26
|
34
|
51
|
|
2024/04
|
67
|
39
|
33
|
38
|
29
|
36
|
31
|
37
|
41
|
42
|
56
|
41
|
57
|
54
|
84
|
42
|
44
|
48
|
28
|
55
|
55
|
34
|
46
|
44
|
52
|
49
|
74
|
53
|
35
|
21
|
|
|
2024/03
|
68
|
67
|
82
|
87
|
108
|
100
|
63
|
97
|
81
|
110
|
100
|
100
|
85
|
84
|
80
|
77
|
76
|
25
|
49
|
67
|
75
|
86
|
105
|
68
|
26
|
41
|
33
|
53
|
59
|
73
|
56
|
|
2024/02
|
140
|
134
|
49
|
39
|
45
|
60
|
56
|
64
|
75
|
193
|
149
|
136
|
143
|
150
|
36
|
39
|
70
|
92
|
137
|
225
|
43
|
18
|
29
|
38
|
56
|
64
|
82
|
102
|
86
|
||
|
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