Daily report · most polluted

China air quality on 18 October 2026

Hotan Xinjiang403 Severely PollutedChina AQI

Hotan had the most polluted air of 341 Chinese cities

Updated 3:00 pm CST · CNEMC

At 3:00 pm CST on 18 October 2026, 341 Chinese cities were reporting. Hotan had the most polluted air at China AQI 403 (Severely Polluted), followed by Kashgar (218) and Artux (183). The median across all cities was 28, down from 33 the day before. 3 cities were at Moderately Polluted or worse (2 the day before). Changchun had the cleanest air at 12.

The biggest deterioration was in Hotan, from 92 to 403. Artux improved most, from 500 to 183.

Excellent 318
Good 15
Lightly Polluted 5
Moderately Polluted 1
Heavily Polluted 1
Severely Polluted 1

10 most polluted cities

#	City	Province	China AQI	Change
1	Hotan	Xinjiang	403Severe	▲ 311
2	Kashgar	Xinjiang	218Heavy	▼ 282
3	Artux	Xinjiang	183Moderate	▼ 317
4	Aksu	Xinjiang	131Light	▼ 16
5	Bayingolin	Xinjiang	129Light	▲ 18
6	Turpan	Xinjiang	115Light	▲ 32
7	Bole	Xinjiang	104Light	▲ 4
8	Jiaxing	Zhejiang	101Light	▲ 53
9	Yulin	Shaanxi	91Good	▲ 58
10	Suzhou	Jiangsu	83Good	▲ 40

10 cleanest cities

#	City	Province	China AQI	Change
1	Changchun	Jilin	12Excellent	▼ 31
2	Wuhu	Anhui	13Excellent	▼ 42
3	Suihua	Heilongjiang	13Excellent	▼ 90
4	Altay	Xinjiang	14Excellent	▼ 2
5	Huaihua	Hunan	14Excellent	▼ 18
6	Chizhou	Anhui	14Excellent	▼ 31
7	Yichang	Hubei	15Excellent	▼ 14
8	Qiqihar	Heilongjiang	15Excellent	▼ 24
9	Baicheng	Jilin	15Excellent	▼ 43
10	Ya'an	Sichuan	16Excellent	▼ 23

Biggest rises

Biggest improvements

All 341 cities on 18 October 2026

#	City	Province	China AQI	Change
1	Hotan	Xinjiang	403Severe	▲ 311
2	Kashgar	Xinjiang	218Heavy	▼ 282
3	Artux	Xinjiang	183Moderate	▼ 317
4	Aksu	Xinjiang	131Light	▼ 16
5	Bayingolin	Xinjiang	129Light	▲ 18
6	Turpan	Xinjiang	115Light	▲ 32
7	Bole	Xinjiang	104Light	▲ 4
8	Jiaxing	Zhejiang	101Light	▲ 53
9	Yulin	Shaanxi	91Good	▲ 58
10	Suzhou	Jiangsu	83Good	▲ 40
11	Bijie	Guizhou	79Good	▲ 44
12	Huzhou	Zhejiang	74Good	▲ 22
13	Yining	Xinjiang	68Good	▲ 3
14	Tacheng	Xinjiang	67Good	▲ 40
15	Shihezi	Xinjiang	65Good	▼ 16
16	Jiamusi	Heilongjiang	62Good	▲ 14
17	Ürümqi	Xinjiang	62Good	▲ 3
18	Lüliang	Shanxi	58Good	▲ 36
19	Baotou	Inner Mongolia	56Good	▲ 33
20	Changji	Xinjiang	56Good	▼ 5
21	Karamay	Xinjiang	54Good	▲ 6
22	Shuozhou	Shanxi	53Good	▲ 14
23	Wuhai	Inner Mongolia	52Good	▲ 27
24	Wujiaqu	Xinjiang	50Excellent	0
25	Yangquan	Shanxi	49Excellent	▲ 28
26	Jinzhong	Shanxi	49Excellent	▲ 25
27	Shizuishan	Ningxia	48Excellent	▲ 21
28	Bayan Nur	Inner Mongolia	47Excellent	▲ 9
29	Xiamen	Fujian	47Excellent	▲ 8
30	Pingxiang	Jiangxi	47Excellent	▲ 11
31	Baise	Guangxi	47Excellent	▲ 18
32	Hegang	Heilongjiang	46Excellent	▲ 15
33	Yichun	Heilongjiang	46Excellent	▲ 12
34	Shanghai	Shanghai	46Excellent	▲ 5
35	Hengyang	Hunan	46Excellent	▲ 8
36	Jieyang	Guangdong	45Excellent	▲ 8
37	Xinzhou	Shanxi	44Excellent	▲ 22
38	Taiyuan	Shanxi	43Excellent	▲ 22
39	Songyuan	Jilin	43Excellent	▼ 3
40	Yichun	Jiangxi	43Excellent	▼ 7
41	Zhaoqing	Guangdong	43Excellent	▼ 8
42	Xingtai	Hebei	42Excellent	▲ 6
43	Dongguan	Guangdong	42Excellent	▲ 3
44	Nanchang	Jiangxi	41Excellent	0
45	Shaoyang	Hunan	41Excellent	▲ 7
46	Foshan	Guangdong	41Excellent	▼ 6
47	Hami	Xinjiang	41Excellent	▲ 22
48	Heihe	Heilongjiang	40Excellent	▲ 17
49	Weinan	Shaanxi	40Excellent	▲ 21
50	Hohhot	Inner Mongolia	39Excellent	▲ 18
51	Ji'an	Jiangxi	39Excellent	▲ 6
52	Guangzhou	Guangdong	39Excellent	▼ 8
53	Shigatse	Tibet	39Excellent	▲ 1
54	Shijiazhuang	Hebei	38Excellent	▲ 12
55	Xinji	Hebei	38Excellent	▲ 16
56	Wuxi	Jiangsu	38Excellent	▼ 7
57	Jinhua	Zhejiang	38Excellent	▼ 1
58	Xinyu	Jiangxi	38Excellent	▼ 9
59	Shangrao	Jiangxi	38Excellent	▼ 3
60	Xinxiang	Henan	38Excellent	▲ 23
61	Lhasa	Tibet	38Excellent	▲ 4
62	Xining	Qinghai	38Excellent	▲ 13
63	Yinchuan	Ningxia	38Excellent	▲ 11
64	Quzhou	Zhejiang	37Excellent	▼ 13
65	Quanzhou	Fujian	37Excellent	▲ 2
66	Shantou	Guangdong	37Excellent	▲ 2
67	Zunyi	Guizhou	37Excellent	▲ 6
68	Shannan	Tibet	37Excellent	▲ 4
69	Yan'an	Shaanxi	37Excellent	▲ 15
70	Zhangzhou	Fujian	36Excellent	▼ 13
71	Zhengzhou	Henan	36Excellent	▲ 9
72	Huizhou	Guangdong	36Excellent	▲ 5
73	Qingyuan	Guangdong	36Excellent	▼ 12
74	Zhongshan	Guangdong	36Excellent	▲ 2
75	Panzhihua	Sichuan	36Excellent	▲ 5
76	Guiyang	Guizhou	36Excellent	▲ 2
77	Shiquanhe	Tibet	36Excellent	▲ 1
78	Dingzhou	Hebei	35Excellent	▲ 20
79	Ordos	Inner Mongolia	35Excellent	▲ 10
80	Hangzhou	Zhejiang	35Excellent	▼ 10
81	Liangshan	Sichuan	35Excellent	▲ 5
82	Qujing	Yunnan	35Excellent	▼ 3
83	Dingxi	Gansu	35Excellent	▲ 8
84	Yushu	Qinghai	35Excellent	▲ 2
85	Nantong	Jiangsu	34Excellent	▼ 4
86	Yingtan	Jiangxi	34Excellent	▲ 3
87	Fuzhou	Jiangxi	34Excellent	▼ 2
88	Anyang	Henan	34Excellent	▲ 1
89	Jinghong	Yunnan	34Excellent	▲ 1
90	Tongchuan	Shaanxi	34Excellent	▲ 9
91	Lanzhou	Gansu	34Excellent	▼ 1
92	Longnan	Gansu	34Excellent	▲ 7
93	Handan	Hebei	33Excellent	▲ 6
94	Hengshui	Hebei	33Excellent	▼ 13
95	Shaoxing	Zhejiang	33Excellent	▼ 5
96	Chuzhou	Anhui	33Excellent	▼ 11
97	Weifang	Shandong	33Excellent	▲ 8
98	Heze	Shandong	33Excellent	▲ 15
99	Kaifeng	Henan	33Excellent	▲ 8
100	Hebi	Henan	33Excellent	▲ 14
101	Luohe	Henan	33Excellent	▼ 12
102	Yulin	Guangxi	33Excellent	▲ 4
103	Hechi	Guangxi	33Excellent	▲ 10
104	Liupanshui	Guizhou	33Excellent	▼ 1
105	Qabqa	Qinghai	33Excellent	▲ 1
106	Yuncheng	Shanxi	32Excellent	▲ 14
107	Alxa	Inner Mongolia	32Excellent	▲ 5
108	Yangzhou	Jiangsu	32Excellent	▼ 14
109	Huaibei	Anhui	32Excellent	▼ 13
110	Suzhou	Anhui	32Excellent	▼ 16
111	Putian	Fujian	32Excellent	▲ 4
112	Jingdezhen	Jiangxi	32Excellent	▼ 8
113	Jiaozuo	Henan	32Excellent	0
114	Shaoguan	Guangdong	32Excellent	▼ 3
115	Meizhou	Guangdong	32Excellent	▼ 5
116	Yunfu	Guangdong	32Excellent	▼ 6
117	Shangri-La	Yunnan	32Excellent	▼ 2
118	Jiayuguan	Gansu	32Excellent	▼ 12
119	Linxia	Gansu	32Excellent	▲ 6
120	Haibei	Qinghai	32Excellent	▲ 1
121	Xuzhou	Jiangsu	31Excellent	▼ 7
122	Fuzhou	Fujian	31Excellent	▲ 4
123	Sanming	Fujian	31Excellent	▼ 4
124	Xinyang	Henan	31Excellent	▼ 15
125	Zhoukou	Henan	31Excellent	▼ 37
126	Chaozhou	Guangdong	31Excellent	▲ 1
127	Deyang	Sichuan	31Excellent	▲ 5
128	Zhaotong	Yunnan	31Excellent	▼ 2
129	Lijiang	Yunnan	31Excellent	▲ 1
130	Dali	Yunnan	31Excellent	▲ 3
131	Nagqu	Tibet	31Excellent	▼ 2
132	Baiyin	Gansu	31Excellent	▲ 4
133	Pingliang	Gansu	31Excellent	▲ 2
134	Jiuquan	Gansu	31Excellent	▼ 7
135	Suqian	Jiangsu	30Excellent	▼ 10
136	Bengbu	Anhui	30Excellent	▼ 32
137	Linyi	Shandong	30Excellent	▲ 2
138	Liaocheng	Shandong	30Excellent	▲ 2
139	Luoyang	Henan	30Excellent	▲ 10
140	Puyang	Henan	30Excellent	▲ 16
141	Xuchang	Henan	30Excellent	▼ 9
142	Zhumadian	Henan	30Excellent	▼ 15
143	Jiyuan	Henan	30Excellent	▲ 13
144	Chenzhou	Hunan	30Excellent	▲ 2
145	Shenzhen	Guangdong	30Excellent	▼ 1
146	Zhuhai	Guangdong	30Excellent	▼ 5
147	Jiangmen	Guangdong	30Excellent	▼ 2
148	Baoshan	Yunnan	30Excellent	▼ 2
149	Dehong	Yunnan	30Excellent	▲ 2
150	Nyingchi	Tibet	30Excellent	▲ 3
151	Huangnan	Qinghai	30Excellent	▼ 3
152	Golog	Qinghai	30Excellent	▼ 2
153	Delingha	Qinghai	30Excellent	▲ 3
154	Linfen	Shanxi	29Excellent	▲ 9
155	Taizhou	Jiangsu	29Excellent	▼ 16
156	Wenzhou	Zhejiang	29Excellent	▼ 14
157	Lishui	Zhejiang	29Excellent	0
158	Bozhou	Anhui	29Excellent	▼ 17
159	Ningde	Fujian	29Excellent	▼ 12
160	Jiujiang	Jiangxi	29Excellent	▼ 10
161	Zibo	Shandong	29Excellent	▲ 3
162	Zaozhuang	Shandong	29Excellent	▲ 8
163	Rizhao	Shandong	29Excellent	▼ 1
164	Sanmenxia	Henan	29Excellent	▲ 9
165	Wuzhou	Guangxi	29Excellent	▼ 7
166	Laibin	Guangxi	29Excellent	▼ 7
167	Meishan	Sichuan	29Excellent	▼ 14
168	Kunming	Yunnan	29Excellent	▼ 1
169	Zhangye	Gansu	29Excellent	▲ 6
170	Changzhi	Shanxi	28Excellent	▲ 10
171	Ulanhot	Inner Mongolia	28Excellent	▼ 10
172	Daqing	Heilongjiang	28Excellent	▼ 10
173	Lianyungang	Jiangsu	28Excellent	▼ 2
174	Ningbo	Zhejiang	28Excellent	▼ 7
175	Fuyang	Anhui	28Excellent	▼ 28
176	Pingdingshan	Henan	28Excellent	▼ 17
177	Shangqiu	Henan	28Excellent	▲ 14
178	Xiangyang	Hubei	28Excellent	▼ 28
179	Qamdo	Tibet	28Excellent	▼ 4
180	Shangluo	Shaanxi	28Excellent	▲ 3
181	Jinchang	Gansu	28Excellent	▲ 5
182	Qingyang	Gansu	28Excellent	▲ 4
183	Baoding	Hebei	27Excellent	▲ 7
184	Jincheng	Shanxi	27Excellent	▲ 12
185	Huainan	Anhui	27Excellent	▼ 27
186	Xuancheng	Anhui	27Excellent	▼ 10
187	Nanping	Fujian	27Excellent	0
188	Qingdao	Shandong	27Excellent	▼ 6
189	Nanyang	Henan	27Excellent	▲ 5
190	Shiyan	Hubei	27Excellent	▲ 2
191	Liuzhou	Guangxi	27Excellent	▼ 8
192	Guigang	Guangxi	27Excellent	▼ 5
193	Anshun	Guizhou	27Excellent	▼ 4
194	Nujiang	Yunnan	27Excellent	0
195	Xi'an	Shaanxi	27Excellent	▲ 6
196	Langfang	Hebei	26Excellent	▲ 4
197	Siping	Jilin	26Excellent	▼ 99
198	Taizhou	Zhejiang	26Excellent	▼ 8
199	Huangshan	Anhui	26Excellent	▼ 10
200	Yantai	Shandong	26Excellent	▼ 28
201	Tai'an	Shandong	26Excellent	▲ 2
202	Weihai	Shandong	26Excellent	▼ 18
203	Dezhou	Shandong	26Excellent	▲ 2
204	Yongzhou	Hunan	26Excellent	▼ 8
205	Heyuan	Guangdong	26Excellent	▼ 2
206	Hezhou	Guangxi	26Excellent	▼ 5
207	Kangding	Sichuan	26Excellent	▲ 1
208	Qiandongnan	Guizhou	26Excellent	▼ 3
209	Duyun	Guizhou	26Excellent	▼ 4
210	Pu'er	Yunnan	26Excellent	▲ 6
211	Honghe	Yunnan	26Excellent	▲ 6
212	Wenshan	Yunnan	26Excellent	▼ 4
213	Xianyang	Shaanxi	26Excellent	▲ 3
214	Hezuo	Gansu	26Excellent	▼ 3
215	Haidong	Qinghai	26Excellent	▲ 3
216	Wuzhong	Ningxia	26Excellent	0
217	Zhongwei	Ningxia	26Excellent	▼ 1
218	Tianjin	Tianjin	25Excellent	▼ 15
219	Tangshan	Hebei	25Excellent	▼ 5
220	Qinhuangdao	Hebei	25Excellent	▼ 24
221	Cangzhou	Hebei	25Excellent	▼ 14
222	Ulanqab	Inner Mongolia	25Excellent	▼ 3
223	Baishan	Jilin	25Excellent	▼ 11
224	Harbin	Heilongjiang	25Excellent	▼ 13
225	Huai'an	Jiangsu	25Excellent	▼ 21
226	Ganzhou	Jiangxi	25Excellent	▼ 9
227	Jinan	Shandong	25Excellent	▼ 2
228	Jining	Shandong	25Excellent	▼ 2
229	Binzhou	Shandong	25Excellent	▼ 7
230	Qinzhou	Guangxi	25Excellent	▼ 7
231	Chongzuo	Guangxi	25Excellent	▼ 1
232	Guang'an	Sichuan	25Excellent	▼ 3
233	Barkam	Sichuan	25Excellent	▼ 7
234	Chuxiong	Yunnan	25Excellent	▼ 1
235	Guyuan	Ningxia	25Excellent	▼ 3
236	Datong	Shanxi	24Excellent	▼ 5
237	Dalian	Liaoning	24Excellent	▼ 25
238	Huludao	Liaoning	24Excellent	▼ 32
239	Zhoushan	Zhejiang	24Excellent	▼ 9
240	Longyan	Fujian	24Excellent	▼ 24
241	Dongying	Shandong	24Excellent	▼ 5
242	Suizhou	Hubei	24Excellent	▼ 24
243	Maoming	Guangdong	24Excellent	▼ 2
244	Shanwei	Guangdong	24Excellent	▼ 11
245	Nanning	Guangxi	24Excellent	▼ 3
246	Guilin	Guangxi	24Excellent	▼ 8
247	Fangchenggang	Guangxi	24Excellent	▼ 6
248	Chongqing	Chongqing	24Excellent	▼ 13
249	Qianxinan	Guizhou	24Excellent	▼ 4
250	Wuwei	Gansu	24Excellent	▲ 2
251	Chengde	Hebei	23Excellent	▼ 13
252	Zhangjiakou	Hebei	23Excellent	▲ 2
253	Chifeng	Inner Mongolia	23Excellent	▼ 36
254	Chaoyang	Liaoning	23Excellent	▼ 60
255	Daxing'anling	Heilongjiang	23Excellent	▼ 3
256	Changzhou	Jiangsu	23Excellent	▼ 23
257	Ezhou	Hubei	23Excellent	▼ 23
258	Chengdu	Sichuan	23Excellent	▼ 33
259	Nanchong	Sichuan	23Excellent	▲ 3
260	Yibin	Sichuan	23Excellent	▼ 39
261	Tianshui	Gansu	23Excellent	▲ 1
262	Jinzhou	Liaoning	22Excellent	▼ 19
263	Yancheng	Jiangsu	22Excellent	▼ 17
264	Jingmen	Hubei	22Excellent	▼ 36
265	Zhangjiajie	Hunan	22Excellent	▼ 3
266	Beihai	Guangxi	22Excellent	▼ 9
267	Sanya	Hainan	22Excellent	▼ 2
268	Zigong	Sichuan	22Excellent	▼ 46
269	Guangyuan	Sichuan	22Excellent	▼ 4
270	Suining	Sichuan	22Excellent	▲ 5
271	Neijiang	Sichuan	22Excellent	▼ 18
272	Bazhong	Sichuan	22Excellent	▲ 3
273	Lincang	Yunnan	22Excellent	▼ 5
274	Baoji	Shaanxi	22Excellent	▼ 4
275	Hanzhong	Shaanxi	22Excellent	▼ 2
276	Beijing	Beijing	21Excellent	▲ 3
277	Tongliao	Inner Mongolia	21Excellent	▼ 14
278	Panjin	Liaoning	21Excellent	▼ 21
279	Tonghua	Jilin	21Excellent	▼ 3
280	Changde	Hunan	21Excellent	▼ 9
281	Luzhou	Sichuan	21Excellent	▼ 29
282	Ziyang	Sichuan	21Excellent	▼ 18
283	Yuxi	Yunnan	21Excellent	▼ 4
284	Ankang	Shaanxi	21Excellent	▲ 7
285	Xilin Gol	Inner Mongolia	20Excellent	▼ 7
286	Dandong	Liaoning	20Excellent	▼ 11
287	Yingkou	Liaoning	20Excellent	▼ 11
288	Fuxin	Liaoning	20Excellent	▼ 26
289	Jixi	Heilongjiang	20Excellent	▼ 12
290	Zhenjiang	Jiangsu	20Excellent	▼ 23
291	Hefei	Anhui	20Excellent	▼ 38
292	Anqing	Anhui	20Excellent	▼ 28
293	Wuhan	Hubei	20Excellent	▼ 34
294	Huanggang	Hubei	20Excellent	▼ 44
295	Yueyang	Hunan	20Excellent	▼ 23
296	Yiyang	Hunan	20Excellent	▼ 18
297	Zhanjiang	Guangdong	20Excellent	▲ 1
298	Leshan	Sichuan	20Excellent	▼ 20
299	Anshan	Liaoning	19Excellent	▼ 7
300	Tieling	Liaoning	19Excellent	▼ 16
301	Ma'anshan	Anhui	19Excellent	▼ 32
302	Lu'an	Anhui	19Excellent	▼ 12
303	Changsha	Hunan	19Excellent	▼ 35
304	Haikou	Hainan	19Excellent	▼ 3
305	Dazhou	Sichuan	19Excellent	▼ 8
306	Shenyang	Liaoning	18Excellent	▼ 21
307	Liaoyang	Liaoning	18Excellent	▼ 14
308	Yanbian	Jilin	18Excellent	▼ 9
309	Tongling	Anhui	18Excellent	▼ 26
310	Xiaogan	Hubei	18Excellent	▼ 46
311	Xianning	Hubei	18Excellent	▼ 13
312	Enshi	Hubei	18Excellent	▼ 7
313	Yangjiang	Guangdong	18Excellent	▼ 3
314	Danzhou	Hainan	18Excellent	▼ 2
315	Mianyang	Sichuan	18Excellent	▼ 4
316	Tongren	Guizhou	18Excellent	▼ 10
317	Hulunbuir	Inner Mongolia	17Excellent	▼ 20
318	Fushun	Liaoning	17Excellent	▼ 16
319	Jilin	Jilin	17Excellent	▼ 8
320	Shuangyashan	Heilongjiang	17Excellent	▼ 23
321	Qitaihe	Heilongjiang	17Excellent	▼ 39
322	Mudanjiang	Heilongjiang	17Excellent	▼ 7
323	Nanjing	Jiangsu	17Excellent	▼ 25
324	Huangshi	Hubei	17Excellent	▼ 27
325	Jingzhou	Hubei	17Excellent	▼ 44
326	Xiangtan	Hunan	17Excellent	▼ 28
327	Loudi	Hunan	17Excellent	▼ 18
328	Benxi	Liaoning	16Excellent	▼ 10
329	Liaoyuan	Jilin	16Excellent	▼ 10
330	Zhuzhou	Hunan	16Excellent	▼ 28
331	Xiangxi	Hunan	16Excellent	▼ 12
332	Ya'an	Sichuan	16Excellent	▼ 23
333	Baicheng	Jilin	15Excellent	▼ 43
334	Qiqihar	Heilongjiang	15Excellent	▼ 24
335	Yichang	Hubei	15Excellent	▼ 14
336	Chizhou	Anhui	14Excellent	▼ 31
337	Huaihua	Hunan	14Excellent	▼ 18
338	Altay	Xinjiang	14Excellent	▼ 2
339	Suihua	Heilongjiang	13Excellent	▼ 90
340	Wuhu	Anhui	13Excellent	▼ 42
341	Changchun	Jilin	12Excellent	▼ 31

Snapshot taken at 3:00 pm CST from China National Environmental Monitoring Centre (CNEMC). Values are the latest hourly readings at that time, not daily averages. Cities with no reading are left out.

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