Satellite-Derived PM2.5 Data Across India

Dr. Sagnik Dey and Dr. Dilip Ganguly at IIT-Delhi have been working on the a new project entitled- Satellite-Based Application For Air Quality Monitoring and Management at National Scale (SAANS). The project is supported by the Central Pollution Control Board (CPCB) and the Ministry of Environment, Forests and Climate Change (MoEFCC). Can you tell us … Continue reading Satellite-Derived PM2.5 Data Across India →

Firecrackers and Air Pollution

As we get into the festive season, one of the questions is- how many firecrackers will we use, and how will that impact air quality, visibility and health? Across the world, people use firecrackers to celebrate- Diwali, Vishu etc. in India, New Year in China and other countries, Independence Day in USA etc. In India, … Continue reading Firecrackers and Air Pollution →

Air Pollution Web Repository for India

While air pollution has taken prominence in political and public debates in India in the last few years, there has been a misnomer that the research on the subject is lagging and nascent. To put this notion to rest, the Council of Scientific and Industrial Research (CSIR) –National Environmental Engineering Research Institute (NEERI) launched India’s first … Continue reading Air Pollution Web Repository for India →

State of Global Air 2018

The Health Effects Institute has launched the State of Global Air 2018. More about the analysis and report from HEI: Background Most of the world’s population lives in areas where air quality is unhealthy. An estimated 95% of people live in areas where ambient (outdoor) fine particulate matter concentrations (small dust or soot particles in the air) … Continue reading State of Global Air 2018 →

(Yet another) Smog Episode in Delhi-NCR

Hourly Average concentration across stations listed here: 335 ± 209 µg/m3 (Min-Max: 123-905 µg/m3) Why are so many data points missing after Nov 5th? Data: @Open_AQ Plot: @pallavipnt @shahzadgani

AQ Forecasting in India

In 2016, UrbanEmissions.Info launched two public portals - http://www.DelhiAirQuality.Info and http://www.IndiaAirQuality.Info, disseminating modeled forecasts of air quality and source contributions for the next 3 days. This is a “bottom-up” approach; with forward linkages to data coming from the monitoring networks (on-ground, mobile, and satellite) to validate, calibrate, and authenticate, as much as possible. Similar systems … Continue reading AQ Forecasting in India →

State of Global Air

Health Effects Institute (HEI) has launched a new web portal with the latest trends in air quality and its impact on human health around the world. The State of Global Air is a collaborative effort among HEI, the Institute for Health Metrics and Evaluation at the University of Washington, and the University of British Columbia. … Continue reading State of Global Air →

Open access data on PM2.5 in India

The original gridded global PM2.5 files are available @ http://fizz.phys.dal.ca/~atmos/martin/?page_id=140 Individual gridded, state, and district level maps for years 1998 to 2014 for India are available here The state and district boundary shapefiles used for this analysis are from 2011 Census, and are available at Github PM2.5 trends for Indian states from 1998-2015- view PM2.5 trends … Continue reading Open access data on PM2.5 in India →

PM2.5 estimates for India

Dr. Sarath Guttikunda and his team at urbanemissions.info have lauched PM2.5 estimates for India from the year 1998 onwards based on satellite data from Randall Martin's group and modelling analyses. Click here for details and to access the underlying data