Jiangsu - China   2025-07-21   Monday   32.08N, 121.07E

Tongzhou

Jiangsu - China
2025-07-21

Air Quality

Excellent

No health implications.

6

PM2.5

21

PM10

66

O3

0.2

CO

4

SO2

5

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

21 Jul

49 Excellent

Tue

22 Jul

56 Good

Wed

23 Jul

55 Good

Thu

24 Jul

51 Good

Fri

25 Jul

50 Excellent

Sat

26 Jul

48 Excellent

Sun

27 Jul

45 Excellent

Monthly Average AQI (Tongzhou)

2020/07 - 2025/06

Air quality in the last 12 months (Tongzhou)

2025/06
15
8
40
64
53
39
32
10
16
12
11
11
10
22
15
27
40
37
30
19
19
9
10
13
31
36
28
25
25
21
2025/05
54
56
48
25
26
62
54
39
14
33
40
49
44
42
53
17
54
56
51
42
21
28
15
41
51
48
38
45
63
67
54
2025/04
45
69
50
49
60
59
78
74
95
68
58
96
96
63
56
57
63
58
50
34
36
41
59
71
52
42
40
37
49
55
2025/03
49
56
14
9
21
39
55
65
49
30
55
20
39
40
26
44
52
42
43
62
65
63
77
66
94
78
78
44
68
33
35
2025/02
22
57
75
58
54
39
52
33
47
53
35
84
48
38
76
131
67
44
41
27
31
51
41
61
88
124
154
56
2025/01
60
42
46
39
92
95
65
66
34
35
67
86
85
111
50
66
80
79
114
169
94
42
36
35
32
44
62
90
145
52
48
2024/12
73
90
53
33
87
147
134
37
46
37
73
44
68
58
65
82
98
71
39
63
92
43
42
59
93
111
52
60
77
83
78
2024/11
9
49
56
51
32
27
28
27
30
37
42
45
41
34
52
22
33
26
24
31
71
75
27
27
26
47
71
71
50
72
2024/10
18
27
18
22
16
8
10
36
35
52
71
59
26
19
47
36
28
34
25
26
21
30
43
28
29
22
18
44
27
24
21
2024/09
34
35
17
18
21
23
41
26
18
25
11
18
18
14
18
19
17
15
16
9
18
26
21
23
16
11
23
25
30
32
2024/08
32
32
41
29
32
25
30
32
28
39
37
33
40
18
18
26
20
14
12
22
25
44
38
24
18
16
27
24
16
18
22
2024/07
26
32
29
33
29
42
39
43
40
13
19
17
19
27
51
44
39
32
37
37
36
37
26
19
21
24
26
21
21
21
31
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