Air Quality
Excellent
No health implications.
7
PM2.5
18
PM10
31
O3
0.5
CO
6
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Nov
52
Good
Sun
17 Nov
36
Excellent
Mon
18 Nov
40
Excellent
Tue
19 Nov
41
Excellent
Wed
20 Nov
48
Excellent
Thu
21 Nov
43
Excellent
Fri
22 Nov
47
Excellent
Air quality in the last 12 months (Hechuan)
|
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
|
||
|
2024/01
|
121
|
124
|
84
|
96
|
120
|
159
|
144
|
117
|
103
|
110
|
138
|
134
|
221
|
185
|
189
|
63
|
44
|
54
|
52
|
47
|
39
|
25
|
38
|
48
|
52
|
72
|
78
|
97
|
110
|
129
|
158
|
|
2023/12
|
32
|
46
|
67
|
67
|
71
|
91
|
100
|
128
|
139
|
165
|
98
|
38
|
60
|
71
|
38
|
50
|
60
|
68
|
89
|
88
|
96
|
110
|
122
|
112
|
142
|
145
|
160
|
195
|
250
|
206
|
194
|
|
2023/11
|
61
|
80
|
65
|
43
|
40
|
64
|
76
|
91
|
86
|
79
|
47
|
19
|
21
|
36
|
34
|
43
|
57
|
82
|
87
|
94
|
122
|
123
|
139
|
181
|
136
|
57
|
61
|
97
|
83
|
58
|
|
|
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