空气污染在 Chennai district ：实时空气质量指数和烟雾警报。

最新数据 过去 7 天 Chennai district 污染 2018年10月 - 2020年5月 生活质量
来自工作站的当前数据： US Diplomatic Post: Chennai Velachery Res. Area, Chennai - CPCB US Diplomatic Post: Chennai
地点： « Tamil Nadu Chennai district Vepery » Pallipatu »
城市污染和空气质量 Chennai district 。 今天是 2025年5月2日星期五 。 已记录下列空气污染值 Chennai district ：
  1. 尘埃 - -305 (好)
  2. 二氧化氮（NO2） - 48 (温和)
  3. 一氧化碳 （CO） - 940 (好)
  4. 臭氧 （O3） - 4 (好)
  5. 二氧化硫 （SO2） - 20 (好)
  6. 颗粒物(PM10)悬浮尘埃 - 70 (敏感组不正常)
10 月 1 日，美国 Chennai district 实时空气质量指数 （AQI 2024年2月6日星期二 ： 3 。

air quality index: 2
AQI 3 敏感组不正常

今天，美国 Chennai district 。 空气中的空气是否 Chennai district ？有烟雾吗？

今天（ 2024年2月6日星期二 ）空气质量在二十一 Chennai district 。 健康的人可能会受到轻微的刺激，敏感的人将受到更轻微的影响，在更大程度上受到 Chennai district 。


目前 PM2.5 的当前 Chennai district ？ (尘埃)
今天的 PM2.5 级别是： -305 (好) 相比之下，过去 7 天内 PM2.5 Chennai district 的最高水平是： 63 (2024年2月6日星期二) 和最低： -999 (2023年9月26日星期二) 。 记录的最高 PM2.5 值： 597 (2018年12月) 。 颗粒物PM2.5污染的最低水平发生在月份： 五月 (9.1) 。

NO2 水平有多高？ (二氧化氮（NO2）)
48 (温和)

CO 级别有多高？ (一氧化碳 （CO）)
940 (好)

今天 O3 级别在 Chennai district ？ (臭氧 （O3）)
4 (好)

SO2 污染程度如何？ (二氧化硫 （SO2）)
20 (好)

今天下午的 PM10 Chennai district ？ (颗粒物(PM10)悬浮尘埃)
目前颗粒物PM10的 Chennai district ： 70 (敏感组不正常)



当前数据 2024年2月6日星期二 上午7:00

PM2,5 -305 (好)

NO2 48 (温和)

CO 940 (好)

O3 4 (好)

SO2 20 (好)

PM10 70 (敏感组不正常)

最近几天的空气污染数据 Chennai district

index 2023-09-26 2023-09-27 2023-09-28 2023-09-29 2023-09-30 2023-10-01 2023-10-02 2023-10-03 2022-10-31 2024-01-31 2024-02-01 2024-02-02 2024-02-03 2024-02-04 2024-02-05 2024-02-06
pm25 -999
Good		 -999
Good		 -999
Good		 -999
Good		 -999
Good		 -999
Good		 -999
Good		 -999
Good		 31
Moderate		 30
Moderate		 15
Moderate		 15
Moderate		 20
Moderate		 19
Moderate		 36
Unhealthy for Sensitive Groups		 63
Unhealthy
no2 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 36
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good
co -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 875
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good
o3 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 4
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good
so2 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 20
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good
pm10 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 71
Unhealthy for Sensitive Groups		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good
data source »
空气污染在 Chennai district 从 2018年10月 2020年5月
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02 2016-01 2015-12 2018-11 2018-10
pm25 9.1 (Good) 9.6 (Good) 24 (Moderate) 32 (Moderate) 32 (Moderate) 30 (Moderate) 39 (Unhealthy for Sensitive Groups) 20 (Moderate) 19 (Moderate) 17 (Moderate) 36 (Unhealthy for Sensitive Groups) 30 (Moderate) 25 (Moderate) 15 (Moderate) 22 (Moderate) 34 (Moderate) 205 (Very bad Hazardous) 597 (Very bad Hazardous) 35 (Moderate) 60 (Unhealthy) 45 (Unhealthy for Sensitive Groups) 105 (Very Unhealthy) 66 (Unhealthy) 40 (Unhealthy for Sensitive Groups) 201 (Very bad Hazardous) 329 (Very bad Hazardous) 84 (Very Unhealthy) 54 (Unhealthy for Sensitive Groups) 52 (Unhealthy for Sensitive Groups) 65 (Unhealthy) 18 (Moderate) 23 (Moderate) 27 (Moderate) 24 (Moderate) 40 (Unhealthy for Sensitive Groups) 31 (Moderate) 29 (Moderate) 32 (Moderate) 47 (Unhealthy for Sensitive Groups) 54 (Unhealthy for Sensitive Groups) 50 (Unhealthy for Sensitive Groups) 50 (Unhealthy for Sensitive Groups) 30 (Moderate) 37 (Unhealthy for Sensitive Groups) 33 (Moderate) 37 (Unhealthy for Sensitive Groups) 18 (Moderate) 20 (Moderate) 26 (Moderate) 36 (Unhealthy for Sensitive Groups) 49 (Unhealthy for Sensitive Groups) 63 (Unhealthy) 41 (Unhealthy for Sensitive Groups) 34 (Moderate)
no2 1.7 (Good) 1.6 (Good) 3.8 (Good) 5.7 (Good) 4.9 (Good) 8.8 (Good) 16 (Good) 18 (Good) 17 (Good) 17 (Good) 23 (Good) 27 (Good) 8.3 (Good) 7.6 (Good) - (Good) 11 (Good) - (Good) - (Good) 15 (Good) 15 (Good) - (Good) - (Good) 46 (Moderate) 33 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 9.8 (Good) 13 (Good)
so2 4 (Good) 7.4 (Good) 6.4 (Good) 6 (Good) 5.3 (Good) 4.9 (Good) 4.5 (Good) 4.7 (Good) 3.6 (Good) 3.8 (Good) 3.7 (Good) 4.1 (Good) 4.7 (Good) 4.6 (Good) - (Good) 4.5 (Good) - (Good) - (Good) 4.2 (Good) 4.3 (Good) - (Good) - (Good) 9.1 (Good) 4.1 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 4.2 (Good) 6.2 (Good)
co 744 (Good) 747 (Good) 665 (Good) 875 (Good) 845 (Good) 454 (Good) 525 (Good) 793 (Good) 724 (Good) 724 (Good) 767 (Good) 1 (Good) 826 (Good) 843 (Good) - (Good) 1 (Good) - (Good) - (Good) 659 (Good) 648 (Good) - (Good) - (Good) 925 (Good) 779 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 966 (Good) 779 (Good)
o3 12 (Good) 11 (Good) 5.6 (Good) 20 (Good) 12 (Good) 23 (Good) 17 (Good) 15 (Good) 15 (Good) 20 (Good) 34 (Good) 41 (Good) 18 (Good) 16 (Good) - (Good) 75 (Moderate) - (Good) - (Good) 31 (Good) 9.2 (Good) - (Good) - (Good) 34 (Good) 26 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 21 (Good) 32 (Good)
data source »

生活质量 Chennai district

城市中的绿化和公园

Chennai district 42%

尼泊尔: 32% 孟加拉国: 33% 不丹: 82% 斯里蘭卡: 59% 巴基斯坦: 49%

颗粒物PM2.5

Chennai district 49 (Unhealthy for Sensitive Groups)

在城市中消磨时光的乐趣

Chennai district 41%

尼泊尔: 32% 孟加拉国: 26% 不丹: 61% 斯里蘭卡: 52% 巴基斯坦: 43%

颗粒物

Chennai district 80 (Unhealthy)

空气污染

Chennai district 63%

尼泊尔: 76% 孟加拉国: 78% 不丹: 45% 斯里蘭卡: 53% 巴基斯坦: 64%

垃圾处理机

Chennai district 30%

尼泊尔: 25% 孟加拉国: 22% 不丹: 47% 斯里蘭卡: 41% 巴基斯坦: 34%

饮用水的供应和质量

Chennai district 40%

尼泊尔: 36% 孟加拉国: 44% 不丹: 64% 斯里蘭卡: 65% 巴基斯坦: 44%

清洁和整洁

Chennai district 32%

尼泊尔: 27% 孟加拉国: 23% 不丹: 57% 斯里蘭卡: 52% 巴基斯坦: 40%

噪声和光污染

Chennai district 57%

尼泊尔: 55% 孟加拉国: 63% 不丹: 55% 斯里蘭卡: 50% 巴基斯坦: 59%

水污染

Chennai district 74%

尼泊尔: 76% 孟加拉国: 74% 不丹: 56% 斯里蘭卡: 57% 巴基斯坦: 70%
Source: Numbeo


US Diplomatic Post: Chennai

2023年10月3日星期二 上午8:00

PM2,5 -999 (好)

尘埃

Velachery Res. Area, Chennai - CPCB

2022年10月31日星期一 上午1:45

NO2 48 (温和)

二氧化氮（NO2）

CO 940 (好)

一氧化碳 （CO）

PM2,5 32 (温和)

尘埃

O3 3.6 (好)

臭氧 （O3）

SO2 20 (好)

二氧化硫 （SO2）

PM10 70 (敏感组不正常)

颗粒物(PM10)悬浮尘埃

US Diplomatic Post: Chennai

2024年2月6日星期二 上午7:00

PM2,5 52 (敏感组不正常)

尘埃

US Diplomatic Post: Chennai

index 2023-10-03 2023-10-02 2023-10-01 2023-09-30 2023-09-29 2023-09-28 2023-09-27 2023-09-26
pm25 -999 -999 -999 -999 -999 -999 -999 -999

Velachery Res. Area, Chennai - CPCB

index 2022-10-31
no2 36
co 875
pm25 31
o3 4.5
so2 20
pm10 71

US Diplomatic Post: Chennai

index 2024-02-06 2024-02-05 2024-02-04 2024-02-03 2024-02-02 2024-02-01 2024-01-31
pm25 63 36 19 20 15 15 30

US Diplomatic Post: Chennai

2015-12   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02 2016-01 2015-12
pm25 9.5 8.9 22 31 35 35 48 14 21 19 22 19 24 15 22 35 205 597 43 94 45 105 95 46 201 329 84 54 52 65 18 23 27 24 40 31 29 32 47 54 50 50 30 37 33 37 18 20 26 36 49 63

Velachery Res. Area, Chennai - CPCB

2018-04   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-02 2018-11 2018-10 2018-09 2018-08 2018-05 2018-04
pm25 8.7 10 27 32 30 25 30 26 16 14 49 41 26 16 34 41 34 26 26 37 34
no2 1.7 1.6 3.8 5.7 4.9 8.8 16 18 17 17 23 27 8.3 7.6 11 9.8 13 15 15 46 33
so2 4 7.4 6.4 6 5.3 4.9 4.5 4.7 3.6 3.8 3.7 4.1 4.7 4.6 4.5 4.2 6.2 4.2 4.3 9.1 4.1
co 744 747 665 875 845 454 525 793 724 724 767 1 826 843 1 966 779 659 648 925 779
o3 12 11 5.6 20 12 23 17 15 15 20 34 41 18 16 75 21 32 31 9.2 34 26

* Pollution data source: https://openaq.org (StateAir_Chennai, caaqm) The data is licensed under CC-By 4.0