Air Quality
Excellent
No health implications.
10
PM2.5
15
PM10
39
O3
0.4
CO
6
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
56
Good
Fri
23 May
58
Good
Sat
24 May
85
Good
Sun
25 May
90
Good
Mon
26 May
93
Good
Tue
27 May
99
Good
Wed
28 May
85
Good
Air quality in the last 12 months (Echeng)
|
2025/04
|
85
|
80
|
71
|
81
|
88
|
75
|
67
|
74
|
76
|
64
|
53
|
179
|
100
|
92
|
57
|
56
|
66
|
69
|
71
|
74
|
44
|
53
|
64
|
73
|
64
|
44
|
40
|
61
|
55
|
53
|
|
|
2025/03
|
51
|
36
|
15
|
47
|
50
|
71
|
73
|
80
|
93
|
102
|
64
|
67
|
65
|
48
|
31
|
51
|
40
|
46
|
50
|
62
|
66
|
60
|
95
|
82
|
66
|
74
|
84
|
70
|
69
|
70
|
76
|
|
2025/02
|
60
|
53
|
82
|
73
|
65
|
49
|
74
|
38
|
43
|
62
|
56
|
98
|
115
|
77
|
93
|
91
|
81
|
78
|
65
|
80
|
77
|
56
|
108
|
132
|
114
|
104
|
80
|
77
|
|||
|
2025/01
|
127
|
151
|
201
|
187
|
80
|
82
|
72
|
66
|
47
|
45
|
78
|
96
|
96
|
105
|
63
|
65
|
87
|
89
|
128
|
162
|
121
|
112
|
262
|
138
|
24
|
45
|
57
|
96
|
213
|
61
|
105
|
|
2024/12
|
68
|
78
|
140
|
92
|
49
|
47
|
55
|
94
|
58
|
80
|
89
|
102
|
86
|
59
|
67
|
78
|
87
|
87
|
55
|
101
|
105
|
68
|
61
|
92
|
123
|
154
|
172
|
51
|
71
|
104
|
144
|
|
2024/11
|
59
|
101
|
94
|
97
|
65
|
57
|
52
|
58
|
59
|
57
|
60
|
61
|
58
|
71
|
85
|
76
|
17
|
17
|
32
|
32
|
44
|
69
|
82
|
62
|
34
|
41
|
54
|
63
|
57
|
74
|
|
|
2024/10
|
17
|
40
|
35
|
35
|
40
|
58
|
18
|
26
|
54
|
88
|
93
|
78
|
87
|
74
|
80
|
59
|
34
|
20
|
19
|
26
|
35
|
27
|
48
|
58
|
64
|
40
|
45
|
79
|
93
|
77
|
45
|
|
2024/09
|
51
|
53
|
41
|
45
|
51
|
56
|
52
|
50
|
48
|
46
|
47
|
27
|
39
|
35
|
36
|
28
|
44
|
33
|
34
|
31
|
33
|
27
|
28
|
41
|
55
|
60
|
59
|
29
|
37
|
51
|
|
|
2024/08
|
24
|
28
|
33
|
32
|
35
|
46
|
36
|
42
|
39
|
43
|
85
|
89
|
56
|
36
|
29
|
29
|
41
|
51
|
36
|
29
|
34
|
43
|
46
|
40
|
47
|
46
|
24
|
17
|
41
|
42
|
52
|
|
2024/07
|
26
|
27
|
40
|
29
|
27
|
21
|
22
|
22
|
26
|
38
|
40
|
38
|
39
|
48
|
45
|
61
|
36
|
29
|
28
|
30
|
30
|
31
|
40
|
49
|
35
|
25
|
19
|
14
|
16
|
29
|
39
|
|
2024/06
|
38
|
44
|
32
|
30
|
28
|
42
|
32
|
45
|
34
|
32
|
22
|
40
|
37
|
47
|
41
|
46
|
52
|
39
|
26
|
34
|
39
|
15
|
32
|
47
|
25
|
43
|
17
|
18
|
19
|
20
|
|
|
2024/05
|
41
|
33
|
36
|
25
|
38
|
48
|
47
|
50
|
67
|
78
|
62
|
91
|
84
|
62
|
62
|
56
|
64
|
62
|
70
|
61
|
48
|
24
|
30
|
37
|
42
|
35
|
26
|
26
|
30
|
74
|
48
|
|
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