Air Quality
Excellent
No health implications.
4
PM2.5
12
PM10
63
O3
0.6
CO
3
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Jul
38
Excellent
Thu
10 Jul
36
Excellent
Fri
11 Jul
40
Excellent
Sat
12 Jul
45
Excellent
Sun
13 Jul
60
Good
Mon
14 Jul
73
Good
Tue
15 Jul
16
Excellent
Air quality in the last 12 months (Hejiang)
|
2025/06
|
35
|
20
|
34
|
28
|
41
|
64
|
59
|
52
|
31
|
41
|
46
|
41
|
43
|
44
|
34
|
41
|
41
|
24
|
15
|
30
|
26
|
28
|
26
|
32
|
15
|
31
|
31
|
30
|
31
|
16
|
|
|
2025/05
|
39
|
61
|
91
|
63
|
40
|
46
|
33
|
34
|
46
|
62
|
46
|
53
|
69
|
61
|
63
|
63
|
55
|
62
|
51
|
61
|
35
|
28
|
52
|
59
|
45
|
41
|
35
|
16
|
23
|
30
|
28
|
|
2025/04
|
42
|
46
|
54
|
55
|
70
|
63
|
49
|
64
|
76
|
86
|
67
|
99
|
140
|
102
|
93
|
69
|
66
|
66
|
41
|
35
|
52
|
45
|
54
|
43
|
47
|
49
|
40
|
41
|
37
|
23
|
|
|
2025/03
|
114
|
113
|
41
|
50
|
23
|
19
|
38
|
52
|
71
|
67
|
67
|
73
|
70
|
56
|
33
|
27
|
17
|
26
|
32
|
43
|
60
|
90
|
88
|
56
|
66
|
74
|
86
|
85
|
30
|
27
|
43
|
|
2025/02
|
63
|
50
|
39
|
36
|
53
|
29
|
22
|
36
|
50
|
61
|
84
|
74
|
36
|
42
|
52
|
68
|
66
|
53
|
64
|
61
|
55
|
32
|
42
|
37
|
60
|
55
|
83
|
85
|
|||
|
2025/01
|
152
|
176
|
149
|
179
|
149
|
135
|
107
|
48
|
51
|
43
|
50
|
59
|
98
|
103
|
86
|
101
|
129
|
101
|
75
|
128
|
172
|
179
|
199
|
97
|
46
|
43
|
57
|
81
|
190
|
163
|
107
|
|
2024/12
|
131
|
157
|
99
|
109
|
53
|
45
|
40
|
34
|
41
|
58
|
71
|
51
|
47
|
50
|
56
|
83
|
112
|
121
|
98
|
106
|
141
|
83
|
59
|
99
|
109
|
96
|
122
|
120
|
116
|
83
|
86
|
|
2024/11
|
47
|
38
|
69
|
65
|
41
|
58
|
57
|
64
|
52
|
59
|
55
|
40
|
43
|
52
|
65
|
42
|
21
|
20
|
19
|
21
|
38
|
46
|
44
|
25
|
18
|
29
|
33
|
43
|
54
|
79
|
|
|
2024/10
|
15
|
22
|
29
|
35
|
48
|
57
|
57
|
50
|
58
|
86
|
60
|
27
|
35
|
40
|
54
|
73
|
26
|
45
|
44
|
23
|
33
|
23
|
33
|
72
|
79
|
64
|
35
|
48
|
72
|
83
|
80
|
|
2024/09
|
29
|
37
|
24
|
30
|
28
|
30
|
38
|
29
|
20
|
30
|
30
|
28
|
41
|
59
|
44
|
36
|
33
|
32
|
28
|
47
|
28
|
36
|
44
|
58
|
86
|
82
|
57
|
54
|
66
|
12
|
|
|
2024/08
|
38
|
21
|
20
|
17
|
31
|
24
|
26
|
22
|
30
|
25
|
50
|
71
|
60
|
49
|
43
|
30
|
42
|
54
|
50
|
52
|
49
|
40
|
25
|
23
|
18
|
25
|
43
|
36
|
30
|
34
|
43
|
|
2024/07
|
31
|
28
|
35
|
24
|
27
|
37
|
34
|
41
|
17
|
16
|
17
|
25
|
26
|
12
|
21
|
29
|
30
|
24
|
22
|
29
|
25
|
21
|
26
|
27
|
29
|
43
|
43
|
30
|
27
|
27
|
36
|
|
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