Poluição do ar Chennai: índice de qualidade do ar em tempo real de PM2.5 (IQA)

January 10^th 2017: New post about “Nitrogen Dioxyde (NO₂) in our atmosphere”.

October 8^th 2016: Registration is open for the November 7th CCA Coalition webinar on Air Quality, Climate Change and the New Urban Agenda: Taking Action at the City Level (Part 2). Register for free now on ccacoalition.org

August 10^th 2016: New post about “Ozone AQI Scale update”.

February 28^th 2016: New post about “Air Quality Forecasting in Northern India”.

November 5^th 2015: New post about “A visual study of Wind impact on PM_2.5 Concentration”.

October 28^th 2015: New post about “UNEP Air Quality Monitoring Station”.

September 20^th 2015: Air Quality data is now available for Wellignton, New Zealand

September 18^th 2015: New post about “Map Web Service: Real-time Air Quality Tile API”.

September 6^th 2015: New post about “Ozone AQI: Using concentrations in milligrams or ppb?”.

September 3^rd 2015: New post about “Air Quality Scale in Poland”.

September 1^st 2015: Air Quality data is now starting to be available for Italy

July 18^th 2015: Air Quality data is now availalbe for Indonesia

July 16^th 2015: New post about “Air Quality Scale in Quebec and Montreal”.

July 1^st 2015: New post about “Translation for Polish is now available”.

June 20^th 2015: We apologize for the service break which happened during June 19^th ~ 20^th. The problem is now fixed, and service back to normal. We have received tons of support emails (thanks!), but might not be able to reply to all of them individually.

May 18^th 2015: New post about “Ground Ozone Air Quality Index update with Instant Cast”.

March 15^th 2015: New post about “A Beginner's Guide to Air Quality Instant-Cast and Now-Cast. ”.

February 23^rd 2015: New post about “South Asia Real-time Air Quality Monitoring Project”.

February 15^th 2015: New post about “Satellite Air Quality monitoring: Introduction to the NASA WorldView”.

February 8^th 2015: New post about “Visual recognising the Air Quality Index - a case applied to Hanoi”.

October 28^th 2014: New post about “Android app. update: now with embedded map and wind forecast.”.

October 6^th 2014: This 2014 international Better Air Quality Conference pre-program is now announced. Check out the program here.

September 6^th 2014: New post about “Australian Air Quality: Comparison with the US EPA AQI scale.”.

August 1^st 2014: New post about “Haier air box: Can it provide any useful Air Quality information?”.

July 28^th 2014: The Android application has been updated, and comes with many new features. Check out the details or just download it.

July 27^th 2014: New post about “Android app. update: now with notifications and automatic location finder.”.

July 21^st 2014: The Windows Mobile 8 phone application is now available for download from the Microsoft Store. Check out the details

July 12^th 2014: The aqicn plugins for Google Chrome and Firefox are now available for download from Google and Mozilla stores.

March 15^th 2014: On Saturday March 29th, from 20:30 to 21:30, the aqicn.org team will join the the Global Earth Hour. During this time, the website will be inaccessible

December 28^th 2013: The Android application has been updated to version 3.0, and comes with many new features. Check out the details or just download it.

October 21^st 2013: New post about “Dylos Air Particule Conter experiment maintenance.”.

September 9^th 2013: New post about “Revised PM_2.5 AQI breakpoints”.

September 8^th 2013: New post about “Dylos Air Particule counter experimentation, part 1.”.

September 5^th 2013: The AQI calculation formula has been updated for some of the countries in Asia. For more information, please check the FAQ entry about Revised PM_2.5 AQI breakpoints.

June 25^th 2013: New post about “Singapore PSI and PM_2.5 AQI: Why is there a difference between the two readings?”.

June 23^rd 2013: The Android Widget application for the whole Asia (incl. Singapore, Japan, Malaysia, Vietnam, India...) is now avaialble from the Google PlayStore.

June 22^nd 2013: Singapore PM2.5 based AQI is now updated on a hourly basis. Thanks to Singapore National Environment Agency for making this happen.
If you wonder why PM2.5 AQI is so relevant compared to PM10 (since PSI is only using PM10 data), please check the article about why is PM_2.5 often higher than PM₁₀.

June 21^st 2013: We apologize for the slow update those last 2 days, due to a huge web traffic increase, partly due to the Singapore smog from Indonesia.
In order to improve the situation, we have upgraded our front-end web server to a high-performance server.

June 4^th 2013: We apologize for the service breaks during the last days (Monday 3rd and Saturday 1st). The problem is due to our backend server.

May 22^nd 2013: Vietnam Air Quality information is now available for 3 cities: Hanói (Hà Nội) (Hà Nội), Danang (TP Đà Nẵng) (Đà Nẵng) and Nha Trang (Khánh Hoà) .

May 20^th 2013: Shenyang (沈阳) Air Quality information is now based on 3 stations. More information available in the faq.

May 11^th 2013: The city geo-location system (i.e. city position on the map) has been updated to take into account a growing number of cities.
In case you notice any issue with the geo-location, such as any city wrongly located on the map, please inform us.

May 6^th 2013: The Air Quality data information for Japan is progressively going back to normal. If you notice any issue, please contact us.

February 7^th 2013: New post about “Air Quality Designation: Update to the EPA AirNow standard”.

February 3^rd 2013: New post about “Can masks really filter the particulate matter as small as PM_2.5?”.

February 2^nd 2013: New post about “Why is PM2.5 often higher than PM10? Is PM10 still a relevant measure?”.

January 19^th 2013: Xangai main AQI data is now based on the maximum of the PM2.5 AQI readings for the 3 stations Shanghai US Consulate (上海美国总领事馆),
Jingan (静安监测站) and Shanghai Normal College Primary Division (上海师范专科学校附属小学) (Same as for Beijing, Guangzhou and Chengdu; done to minimize maintenance downtime)
If you want to compare the relative AQI readings for those 3 stations, consult the FAQ section

January 12^th 2013: PM2.5 data is available for 11 new cities (Taiyuan, Huhehaote, Shenyang, Hefei, Fuzhou, Zhengzhou, Changsha, Nanning, Haikou, Lhasa, Wulumuqi)

January 11^th 2013: Chengdu main AQI data is now based on the maximum of the PM2.5 AQI readings for the 2 stations Chengdu US Consulate (成都美国总领事馆)
and Caotang Temple, Chengdu (成都草堂寺) (Same as for Beijing and Guangzhou; done to prevent from the 'no reading downtime')

January 8^th 2013: PM2.5 data is available for 12 new cities (Chongqing, Tianjin, Xian, Dalian, Xiamen, Haerbin, Nanchang, Changchun, Kunming, Xining, Lanzhou, Yinchuan)

December 30^th 2012: Cantão main AQI data is now based on the maximum of the PM2.5 AQI readings for the 2 stations
Guangzhou US Consulate (美国领事馆 - 广州中国) and Lìwān xicūn, Guangzhou (广州荔湾西村) (Same as for Beijing; done to prevent from the 'no reading downtime')

December 29^th 2012: PM2.5 real time data hourly is now avaialble Shandong province and Zhenjiang province

December 28^th 2012: Since the Beijing US embassy PM2.5 is having 'no-reading' issues, the Beijing AQI data is now based on the maximum of the PM2.5 AQI readings for the 3 stations
Beijing US Embassy (北京美国大使馆), Dongcheng Dongsi (东城东四) and Chaoyang Agricultural Exhibition Hall (朝阳农展馆).
If you only want to view the PM2.5 US embassy data, then use this link. If you want to compare the relative AQI readings for those 3 stations, consult the FAQ section

December 8^th 2012: We are looking for help to improve the translations for Chinese, Cantonese, Korean, Russian and Japanese, as well as create tranlations for new languages.
If you can help for those translations, please contact us at this link.

December 6^th 2012: PM2.5 real time data hourly is now avaialble Hebei province (38 places), Guangdong province (63 places), Jiangsu province (17 places),

November 18^th 2012: PM2.5 real time data hourly is now avaialble for Wuhan, Ningbo and Shanghai

October 7^th 2012: The MEP PM₁₀, NO₂ and SO₂ convertion formula from µg/m³ to AQI level has been updated to follow EPA standards.

September 18^th 2012: PM2.5 real time data hourly is now avaialble for Beijing, Hong Kong and Shenzhen
Beijing, Shanghai, Guangzhou, Chengdu Air Pollution Indexes are now based the US Embassy real time twitter feeds.

March 15^th 2012: The Beijing AmCham is organizing a session on 'Air Pollution and Health: What You Can Do to Minimize Risk?' on Thursday March 21st 2013. More information available here.

March 11^th 2012: We apologize for the service break which happened from Sunday 23PM until today, Monday, 9PM. This break was due to our web hosting provider.

February 21^st 2012: Our new back-end server roll-out is started - with the objective to improve the incoming traffic bandwidth. If you notice any strange issue, please contact us.

February 7^th 2012: The Air Quality Designation is now updated to follow the EPA standard. Check the FAQ for more information...

February 3^rd 2012: 2 new entries posted in the faq section about Why is PM_2.5 often higher than PM₁₀ and Can masks really filter PM_2.5 particles?.
A problem has also been fixed in the server which prevented some of the android widgets from beeing updated. If you still see some problems with the Android widgets, please contact us.

Visualizar todas as notícias passadas, ou verificar as perguntas mais frequentes.

iPhone & iPad

Android

Windows Phone

Windows PC

Google Chrome

Firefox

Wordpress

Cloud API

O suporte para mais plataformas (Windows 8, Foxos, Tizen, ...) que vem logo .... Fique ligado!

Click here to download the Chennai Air Quality plugin from the Chrome store.

https://chrome.google.com/webstore/detail/world-air-quality-index/hhhfnanaabgcafkmlplbifbhknnbmidl

Alternatively, in can you can not access the Chrome store, you can also download the ".crx" plugin file
from this link. In order to install the crx file by, you can follow those 3 steps:

Settings-Icon > Tools > Extensions
{ the 'three horizontal-bars' icon in the top-right corner }

Drag and drop the "crx" extension file onto the Extensions page from step 1
{ .crx file should likely be in your Downloads directory }

Install the aqicn Air Quality plugin

(More information from howtogeek.com/120743/how-to-install-extensions-from-outside-the-chrome-web-store/ or
stackoverflow.com/questions/9931906/crx-file-install-in-chrome )

Click here to download the Chennai Air Quality plugin from the Firefox store.

https://addons.mozilla.org/en-US/firefox/addon/aqicn/

In case you can not access the Firefox store, you can also download the ".xpi" add-on from this link.

In order to install the Chennai Air Quality Widget on your favorite iPhone or iPod device, just launch the internet browser from your device and open the web page: " http://ios.aqicn.org/?-1".

Or just scan this QR-code:

Then click on this icon to install the widget as an application directly accessible from your iPhone homescreen.

windows mobile lumia Chennai real-time air quality application

You can download the Chennai Air Quality Widget for your favorite Windows Mobile 8 or 8.1, directly from the Microsoft application store:

" www.windowsphone.com/en-us/store/app/asia-air-quality/f3828278-b7a9-4e5f-9936-95a2e9b2db18".

In case you have problem to access the Store, you can directly download the ".xap" file from our server at this link:

https://aqicn.org/aqicn/gadget/winmo/?xap

In order to install the Chennai Air Quality Widget on your favorite Symbian device, just download the "ChennaiAir.wgz" and install on your phone using Nokia Suite.

Download " ChennaiAir.wgz".

In order to install the Chennai Air Quality Widget on your Windows Desktop, just download the "Chennai.gadget" and let you be guided through the Windows installer.

Download "Chennai.gadget".

You can download the Chennai Air Quality Widget on your Android Device directly from the google app store.
(你可以从Google商店下载此应用).
In case the Android app store can not be accessed, you can also directly download the signed apk file.
(如果不能访问 Google应用商店，你也可以从我们的网站上直接下载APK文件)

Current		Últimas 48 horas	Min	Max
PM2.5 AQI	98		44	201
NO2 AQI	16		8	38
SO2 AQI	4		1	12
CO AQI	4		4	13
Temp.	31		29	32
Pressão	761		759	763
Umidade	89		52	97
Vento	2		0	3

-	Valores do índice de qualidade do ar (IQA).	Níveis de preocupação com a saúde
0 - 50	Boa	0-50: Boa - A qualidade do ar é considerada satisfatória, a poluição do ar representa pouco ou nenhum risco
51 -100	Moderado	A Qualidade do ar é aceitável; no entanto, para alguns poluentes pode haver uma preocupação de saúde moderada para um número muito pequeno de pessoas que são especialmente sensíveis à poluição atmosférica.
101-150	Insalubre para grupos sensíveis	Membros de grupos sensíveis podem experimentar efeitos na a saúde. O público em geral não é susceptível de ser afetado.
151-200	Insalubre	150-200: Insalubre - Todo mundo pode começar a sentir os efeitos na saúde; membros de grupos sensíveis podem apresentar efeitos mais sérios de saúde.
201-300	Muito Insalubre	Advertências relativas à saúde das condições de emergência. Toda a população tende a ser afetada.
300+	Perigoso	300+: Perigoso - alerta de saúde: todos podem experimentar efeitos mais graves para a saúde

Poluição do ar Chennai: índice de qualidade do ar em tempo real (IQA)

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