Varanasi’s Air 20 Times Above Safe Levels, Worse Than Delhi

On December 21, 2017, as Delhi’s air quality plunged to levels 19 times worse than World Health Organization (WHO) standards, the only consolation its people could take was that things were likely t... Source: Central Pollution Control Board; Based on one online monitoring station...   Air quality has six classifications: Good, Satisfactory, Moderately polluted, Poor, Very Poor, and Severe. These categories describe the Air Quality Index (AQI), a composite marker of various p... table,th,td{ font-size: 12px; font-family: arial; border-collapse: collapse; border: 1px solid black; } table{ width:580px; } th,td{ text-align:center; paddin...   “Heavy industrial activity in the Indo-Gangetic belt has led to rapid degradation of air quality across North Indian region,” the 2016 report said. Changing wind patterns, especially during...

Why India’s Deadly Coal-Power Plants Will Continue Polluting

New Delhi: Over five years to 2017, thermal power plants–among India’s chief polluters–pushed nationwide levels of sulphur dioxide (SO2), a toxic gas, by 32% and fine particles called PM...   The 2015 rules aimed at reducing toxic emissions of SO2, NOx, PM 2.5 and mercury. PM 2.5--and its larger cousin, PM 10--are tiny airborne particles that can enter human lungs and sicken ... table,th,td{ font-size: 12px; font-family: arial; border-collapse: collapse; border: 1px solid black; } table{ width:580px; } th,td{ text-align:center; paddin...   Under the 2015 rules, thermal power plants were supposed to install three pieces of technology: Electrostatic precipitators (ESPs) to curb particulate matter, flue gas desulphurisation (FGD) to...

Delhi’s Air 26 Times Above Safe Levels, Toxic Air Across North India

As the Delhi government announced emergency measures to tackle its toxic air, it was evident that the air across large swathes of north India was unsafe, as a satellite image from the US space agenc... The ‘aerosol optical depth’ image--a measure of how airborne particles change the way the atmosphere reflects and absorbs visible/infrared light--shows skies thick with haze in red-brown and c...   Munirka in south-west Delhi reported the worst particulate matter (PM) 2.5 concentration at 968.28 μg/m³ at 9 am on November 7, 2017, according to an analysis of hourly averages for 48 hours,... The scale & geographical spread of the PM2.5 #IndiaAQ problem. Engulfing the entire Indo-Gangetic plain via @cambecc — Ronak Sutaria (@rsuta... With a health emergency declared in the national capital, schools are to remain closed till Sunday, construction activities have been halted and the entry of trucks in the city are banned.   Ai... ... Source: IndiaSpend #Breathe; Note: PM 2.5 data on averaged on per hour basis for 48 hours, November 6, 2017, 12 pm to November 8, 2017, 12 pm. Data for Civil Lines Jaipur is for 44 hours, upto 8 am on... ... Source: IndiaSpend #Breathe; Device locations: Shakti Office, Munirka PhaseIII, New Delhi; Sector 47, Malibu Town, Fatehpur, Gurugram; Sector 49 C, Sahibzada Ajit Singh Nagar, Chandigarh; Rampur Kurd,... Source:NASA; Image acquired on October 25, 2017.   Source: NASA; Image acquired on November 8, 2017. ...   Stopping the practise of burning straw or stubble and other biomass could improve air quality in Delhi by 90%, according to a 2016 apportionment study by the Indian Institute of Technology, K...

As Delhi Air Quality Plunged, 30 Alerts That Were Never Issued

Vehicles ply in reduced visibility in south Delhi as smog enveloped the city with a spike in particulate pollution. Over the last one month, residents of the national capital territory of Delhi should... Emergency meeting on Pollution with @ArvindKejriwal . Measures approved include ban on entry of trucks(except carrying essentials), ban on civil construction, school holidays till Week end, hike in... A plan ready to be implemented–except it was not   After Delhi witnessed its worst smog in 17 years in 2016, the CPCB, under directions from the Supreme Court, submitted the GRAP to address t... table,th,td{ font-size: 12px; font-family: arial; border-collapse: collapse; border: 1px solid black; } table{ width: 580px; } th,td{ text-align:center; padding:2p...   An AQI reading of over 500 is considered to an “emergency” and involves a shutdown of most outdoor activities. These measures are not new to authorities–they were recommended by a Ind... var divElement = document.getElementById('viz1510149853573'); var vizElement = divElement.getElementsByTagName('object')[0]; ...   Over the last three weeks, government authorities, as per their own plan, should have also issued health advisory alerts for vulnerable populations or young children and senior citizens, banned...

Design A New #Breathe Human Interface For Real-time Air Quality Monitoring Data

The air we breathe is making us very sick. The mainstream media have managed to bring unprecedented awareness to the issue of the deteriorating air quality condition in all our major cities, especially in North India. We at IndiaSpend have played our part in raising that awareness.     IndiaSpend #breathe is a real-time air-quality monitoring … Continued

Diwali Air Over North India Was World’s Worst–And Worse Than Diwali 2015

  Over the Diwali weekend of 2016, India’s air quality was among the world’s worst and between 40% and 100% worse in five north Indian cities than at the same time the preceding year, according to global air pollution data and an IndiaSpend analysis of national data and our #Breathe network of sensors.   On … Continued ...

Smoke From Firecracker Snake = 464 Cigarettes (And Other Diwali Stories)

  Would you be comfortable sending your child into a room filled with smoke from 464 cigarettes? That is equivalent to the amount of particulate matter less than 2.5 microns (PM 2.5) emitted by the popular firecracker called a snake tablet.   Six popular firecrackers–the snake tablet, the laad (string of 1,000 crackers), fuljhadi (sparkler), … Continued

Odd-Even Car Restrictions Did Not Improve Delhi Air

  As Delhi’s air quality begins to deteriorate with Diwali, new government data indicates that the Aam Aadmi Party (AAP) government’s restrictions on cars based on odd-even number plates—between January 1-15, 2016, and April 15-30, 2016—did not improve the air quality in the world’s 11th most polluted city.   The main reason the odd-even system … Continued

Delhi Continues To Top World’s Most Polluted Megacities List: WHO

  Delhi’s air is the worst among world megacities, the World Health Organisation (WHO) confirmed recently, even as IndiaSpend‘s #breathe network of air-quality sensors reported fine-particulate-matter (PM2.5) levels were almost four times above daily safe levels, on average, for the seven-day period from September 22 to 28, 2016.   For long-term exposure, these 24-hour levels are nearly … Continued

Varanasi, Allahabad Air Breached WHO Pollution Limits Almost Every Day In August

A vendor carrying a basket of flowers walks as migratory birds fly over the banks of Sangam, the confluence of the three holy rivers Ganga, Yamuna and Saraswati, in Allahabad, Uttar Pradesh. Air pollution in Allahabad and Varanasi exceeded the World Health Organization acceptable limit 93% and 96% of the time, respectively, this August. The … Continued ...