Thick Smog in Delhi and Lahore: Is India Crop Burning to Blame?

Thick smog enveloping Pakistan's Punjab province has seriously disrupted road and air traffic and created significant health emergency for the people, according to Pakistani media reports. Indian cities, including the nation's capital New Delhi, are also suffering from it.

Is India Responsible?

Pakistani officials have blamed "the incursion of smoke and particle matter from the burning of crop stubble in the Indian Punjab." Particulate matter of 2.5 microns or larger as measured in micrograms per cubic meter is up to 80 times higher than the upper limit of 10 micrograms per cubic meter considered safe by the World Health Organization.

Is the Pakistani claim supported by data? Let's try and answer this question with satellite images of the area released by the United States' National Aeronautics and Space Administration (NASA).

Crop Burning Incidents Seen from space. Source: NASA Earth Observatory

NASA Satellite Images:

Here's how NASA's Earth Observatory described the situation last year:

"In early October 2016, Earth-observing satellites began to detect small fires in Punjab, and the number of fires increased rapidly in the following weeks. By November, thousands of fires burned across the state, and a thick pall of smoke hovered over India. The Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite captured a natural color image on November 2, 2016. The map (second image) shows the locations of the fires VIIRS also detected."

This year, 2,620 incidents of crop fire were spotted via satellite in Indian Punjab. In Pakistan, the number was limited to just 27, according to Indian media reports.  Indian reports confirm that Pakistan has done a good job of cracking down on incidents of crop burning to dramatically reduce them.

Low wind speeds of less than 2 meters per second and reversal of wind direction from east to west are causing crop burning smoke to drift from Indian Punjab toward Pakistan, according to an Indian Meteorological Department official as quoted by the Wall Street Journal.

Satellite Images of Smoke Over India and Pakistan. Source: NASA

South Asia's Vulnerability:

South Asia is particularly susceptible to pollutants that hang in the air for extended periods of time. The US National Aeronautics and Space Administration (NASA) satellite images show dull gray haze hovering over northern India and Pakistan, and parts of Bangladesh. It is believed that emissions from solid fuel burning, industrial pollutants and farm clearing fires get trapped along the southern edge of the Himalayas. NASA Earth Observatory explains this phenomenon as follows:

"The haze visible in this image likely results from a combination of agricultural fires, urban and industrial pollution, and a regional temperature inversion. Most of the time, air higher in the atmosphere is cooler than air near the planet’s surface, and this configuration allows warm air to rise from the ground and disperse pollutants. In the wintertime, however, cold air frequently settles over northern India, trapping warmer air underneath. The temperature inversion traps pollutants along with warm air at the surface, contributing to the buildup of haze."

Trapped Smog. Source: Al Jazeera 

Urgent Actions Needed: 

South Asian governments need to act to deal with rapidly rising particulate pollution jointly. Some of the steps they need to take are as follows:

1. Crack down on crop burning to clear fields.

2. Reduce the use of solid fuels such as cow dung, wood and coal to limit particulate matter released into the atmosphere.

3. Impose higher emission standards on industries and vehicles through regulations.

4. Increase forest cover by planting more trees.

5. Encourage the use of more renewable energy sources such as solar, wind, hydro, etc.

The cost of acting now may seem high but it will turn out out to be a lot more expensive to deal with extraordinary disease burdens resulting from rising air pollution.

Summary:

Movement of pollutants does not recognize national borders. It has severe consequences for both India and Pakistan.  The only way to deal with it is for the two nations to cooperate to minimize this problem.

South Asia accounts for more than a third of all PM2.5 pollution related deaths in the world. The sources of particulate pollution range from solid fuel burning to crop clearing fires and use of dirty fuels in vehicles and industries. Recognition of the growing problem is urgent. Failure to act could be very costly in terms of human health.

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Diwali in Silicon Valley

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Diwali in Silicon Valley

Brightly colored festival gift displays at major retail stores and poor air quality in Silicon Valley are reminding Indian-Americans this year of Diwali celebrations at home.

Big box retailers like Costco know their customers. Merchandizers working for them are stocking up their local Silicon Valley stores with products most in demand before Diwali, the Hindu festival of lights, to cater to a sizable population of Indian-Americans in the Valley.  A variety of Indian mithais (sweets) and spicy snacks are on display at major mainstream retail stores that are competing with the traditional Indian supermarkets for business. Stores like Costco are now also carrying raw or prepared daals, rice, vegetables, flour, naans and chapatis.

Diwali Gift Display at a Silicon Valley Costco

Adding to the ambiance is the particulate matter from multiple major forest fires in the San Francisco Bay Area that are still not under control after several days of fire fighting.  Tragically, the fires have so far claimed 40 precious lives and many are still missing. The air quality in the Bay Area has also suffered. The Bay Area air with PM2.5 of 155 micrograms per cubic meter is now being compared to what Indians in Delhi (153 micrograms per cubic meter) have to breathe in normal times and it gets a lot worse during Diwali fireworks.

Bay Area Air Quality on October 14, 2017 During California Fires

Delhi is not alone; Other cities in India claim 13 spots among the top 20 dirties cities in the world. Not far behind  Delhi's 153 micrograms is another Indian city, Patna with 149 micrograms. Other Indian cities among the world's dirtiest are: Agra (88 ug/m3), Allahabad (88 ug/m3), Ahmedabad (100 ug/m3), Amritsar (92 ug/m3), Firozabad (96 ug/m3), Gwalior (144 ug/m3), Khanna (88 ug/m3), Kanpur (93 ug/m3), Lucknow (96 ug/m3), Ludhiana (91 ug/m3) and Raipur (134 ug/m3).  Pakistani cities of Karachi (117 ug/m3), Peshawar (111 ug/m3) and Rawalpindi (107 ug/m3) also count among the world's most polluted.

India's pollution problems are not entirely due to poorly controlled industry and transport. The early winter problems are significantly exacerbated by the burning of the fields by farmers after harvest.

With a score of just 3.73 out of 100, India ranks as the worst country for the ill effects of toxic air pollution on human health among 132 nations, according to a report presented at the World Economic Forum 2012. India's neighbors also score poorly for toxic air pollution, but still significantly better than India. For example China scores 19.7, followed by Pakistan (18.76), Nepal (18.01) and Bangladesh (13.66).


In the overall rankings based on 22 policy indicators, India finds itself ranked at 125 among the bottom ten environmental laggards such as Yemen, South Africa, Turkmenistan, Uzbekistan and Iraq while Pakistan ranks slightly better at 120. The indicators used for this ranking are in ten major policy categories including air and water pollution, climate change, boidiversity, and forest management.

These rankings are part of a joint Yale-Columbia study to index the nations of the world in terms of their overall environmental performance. The Yale Center for Environmental Law and Policy and Columbia's Center for International Earth Science Information Network have brought out the Environment Performance Index rankings every two years since 2006.

The Yale-Columbia study confirms that environmental problems in South Asia are growing rapidly. The increasing consumption by rapidly growing population is depleting natural resources, and straining the environment and the infrastructure like never before. Soil erosion, deforestation, rapid industrialization, urbanization, and land and water degradation are all contributing to it.

It's important to remember that Bhopal still remains the worst recorded industrial accident in the history of mankind. As India, Pakistan and other developing nations vie for foreign direct investments by multi-national companies seeking to set up industries to lower their production costs and increase their profits, the lessons of Bhopal must not be forgotten.

It is the responsibility of the governments of the developing countries to legislate carefully and enforce strict environmental and safety standards to protect their people by reversing the rapidly unfolding environmental degradation. Public interest groups, NGOs and environmental and labor activists must press the politicians and the bureaucrats for policies to protect the people against the growing environmental hazards stemming from growing consumption and increasing global footprint of large industrial conglomerates.

There will be severe health consequences for all Indians unless the Modi government acts to legislate and regulate various sources of pollution in the country. Pakistan government, too, needs to act to prevent severe harm to public health by rising pollution.

Related Links:

Haq's Musings

Diwali in Delhi

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India's Air Most Toxic

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Bhopal Disaster

Environmental Pollution in India

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Heavy Disease Burdens in South Asia

Diwali Triggers Delhi's "Severe" Pollution Warning

India's capital Delhi has the dubious distinction of being the world's most polluted city and Diwali fireworks are making its air pollution even worse. The smog will be particularly dangerous on Nov. 12 and 13, with the concentration of pollution-related particles — PM2.5 and PM10 — projected to increase by 148% and 170% respectively, according to Indian media reports.


News headlines said US President Obama's 3 day visit to New Delhi last year cut his life expectancy by 6 hours. Why? Because Delhi has the highest level of the airborne particulate matter, PM2.5 considered most harmful to health, with 153 micrograms per cubic meter, 15 times higher than the 10 micrograms per cubic meter considered safe by the World Health Organization (WHO).

World's Dirtiest Cites

Delhi is not alone; Other cities in India claim 13 spots among the top 20 dirties cities in the world. Not far behind  Delhi's 153 micrograms is another Indian city, Patna with 149 micrograms. Other Indian cities among the world's dirtiest are: Agra (88 ug/m3), Allahabad (88 ug/m3), Ahmedabad (100 ug/m3), Amritsar (92 ug/m3), Firozabad (96 ug/m3), Gwalior (144 ug/m3), Khanna (88 ug/m3), Kanpur (93 ug/m3), Lucknow (96 ug/m3), Ludhiana (91 ug/m3) and Raipur (134 ug/m3).  Pakistani cities of Karachi (117 ug/m3), Peshawar (111 ug/m3) and Rawalpindi (107 ug/m3) also count among the world's most polluted.

India's pollution problems are not entirely due to poorly controlled industry and transport. The early winter problems are significantly exacerbated by the burning of the fields by farmers after harvest.

With a score of just 3.73 out of 100, India ranks as the worst country for the ill effects of toxic air pollution on human health among 132 nations, according to a report presented at the World Economic Forum 2012. India's neighbors also score poorly for toxic air pollution, but still significantly better than India. For example China scores 19.7, followed by Pakistan (18.76), Nepal (18.01) and Bangladesh (13.66).


In the overall rankings based on 22 policy indicators, India finds itself ranked at 125 among the bottom ten environmental laggards such as Yemen, South Africa, Turkmenistan, Uzbekistan and Iraq while Pakistan ranks slightly better at 120. The indicators used for this ranking are in ten major policy categories including air and water pollution, climate change, boidiversity, and forest management.

These rankings are part of a joint Yale-Columbia study to index the nations of the world in terms of their overall environmental performance. The Yale Center for Environmental Law and Policy and Columbia's Center for International Earth Science Information Network have brought out the Environment Performance Index rankings every two years since 2006.

The Yale-Columbia study confirms that environmental problems in South Asia are growing rapidly. The increasing consumption by rapidly growing population is depleting natural resources, and straining the environment and the infrastructure like never before. Soil erosion, deforestation, rapid industrialization, urbanization, and land and water degradation are all contributing to it.

It's important to remember that Bhopal still remains the worst recorded industrial accident in the history of mankind. As India, Pakistan and other developing nations vie for foreign direct investments by multi-national companies seeking to set up industries to lower their production costs and increase their profits, the lessons of Bhopal must not be forgotten.

It is the responsibility of the governments of the developing countries to legislate carefully and enforce strict environmental and safety standards to protect their people by reversing the rapidly unfolding environmental degradation. Public interest groups, NGOs and environmental and labor activists must press the politicians and the bureaucrats for policies to protect the people against the growing environmental hazards stemming from growing consumption and increasing global footprint of large industrial conglomerates.

There will be severe health consequences for all Indians unless the Modi government acts to legislate and regulate various sources of pollution in the country. Pakistan government, too, needs to act to prevent severe harm to public health by rising pollution.

Related Links:

Haq's Musings

India's Air Most Toxic

Pak Entrepreneur Recycles Trash into Energy and Fertilizer

Bhopal Disaster

Environmental Pollution in India

Rising Population, Depleting Resources

India Leads the World in Open Defecation

Heavy Disease Burdens in South Asia