Skip to main content

Plastic pollution hotspots: India ranks top due to high levels of 'uncollected' waste, says research

By Costas Velis, Ed Cook, Josh Cottom* 

We have used machine learning to identify the biggest plastic pollution hotspots across more than 50,000 towns, cities and rural areas worldwide. Our new global model reveals the most detailed picture of plastic pollution ever created with the highest environmental concentrations in India, predominantly because so much of its waste isn’t collected.
Plastic has been found everywhere – from deep ocean trenches to the highest mountain tops, but these observations only reveal isolated snapshots of the overall plastic pollution picture. A bigger challenge is to find out where and how this plastic reaches the environment in the first place, so pollution can be prevented at source.
This is no easy task. The most challenging aspects to measure are the “emissions” – the macroplastic (anything bigger than 5mm in size) that escapes or is released from material systems and activities. This includes waste blowing from rubbish bins or falling off collection trucks plus litter being dropped by people, either accidentally or intentionally.
We found that littering is the largest emission source in the developed world where waste management systems are highly controlled. Conversely, in developing countries uncollected waste is the dominant source.
Using artificial intelligence, our new computer model shows how plastic moves from a controlled system into the environment where it becomes very challenging to recapture and contain. We had to work out how plastic escapes from the controlled system and found that, of the 52 million tonnes of waste (equivalent to the weight of 8.7 million African grey elephants) which enters the environment each year, uncollected waste is the biggest source. That’s about 68% by weight of all pollution or 36 million tonnes each year.
So it’s a misconception that plastic pollution is caused by people’s irresponsible behaviour. The main reason is that 1.2 billion people do not have their solid waste collected at all. Instead, they have to burn, bury or scatter it on land or in the water.
Open burning of waste is prolific, accounting for 57% of all plastic pollution worldwide by weight. This involves burning waste on open fires without any controls to prevent hazardous emissions from reaching the environment or harming our health. This practice is popular, possibly because it seems to make the waste disappear, reducing the burden on waste management authorities and reducing the unsightliness of waste dumped on land.
India has emerged as the place where most macroplastic emissions take place, emitting 9.3 million tonnes of plastic into the environment each year – one fifth of the total. That’s 2.7 times more than the next two largest polluters, Nigeria and Indonesia.
Emissions in India are highest because only 81% of its waste is collected. But the country also generates a lot more waste than some previous models have assumed. Official government sources estimate 0.12kg per person per day, but these estimates exclude many rural areas, so the real number is closer to 0.54kg per person per day. The combination of such a large amount of waste, large population and low collection rate creates the conditions under which plastic pollution flourishes.

Targeted action

Pinpointing these pollution hotspots helps policymakers design more targeted ways to deal with plastic pollution. Countries with higher plastic pollution usually have fewer resources, in terms of money and infrastructure. So they tend to be least well-equipped to curb their emissions.
Having a more detailed understanding of how waste is managed and emitted in every corner of the world enables governments to target their scarce resources at the areas where plastic pollution is most acute. Our model will also help them to develop action plans that can feasibly meet the targets agreed in the global plastics treaty, an international agreement that’s currently being negotiated to reduce plastic pollution worldwide.
Reducing our consumption of plastic is one solution to curb plastic pollution. But plastic does not exist in isolation. It’s part of a complex mixture of materials in waste and we need to consider all of them together. For example, food waste, along with other biodegradable materials, produces most of the climate emissions from the waste management system when it is deposited in land disposal sites.
If we cut down on plastics, we will need to think of ways to reuse materials or replace them with others. But our previous research has shown that the opportunities to do so are limited and in practice – we’ll be making plastic long into the future. Right now, we need to manage our plastic waste more effectively. Finding ways to extend waste collection services could dramatically reduce plastic pollution and benefit billions of people.
---
*Costas Velis is Lecturer in Resource Efficiency Systems, University of Leeds; Ed Cook is Research Fellow in Circular Economy Systems for Waste Plastics, University of Leeds; Josh Cottom is Research Fellow, Plastics Pollution, University of Leeds. Source: The Conversation 

Comments

TRENDING

A comrade in culture and controversy: Yao Wenyuan’s revolutionary legacy

By Harsh Thakor*  This year marks two important anniversaries in Chinese revolutionary history—the 20th death anniversary of Yao Wenyuan, and the 50th anniversary of his seminal essay "On the Social Basis of the Lin Biao Anti-Party Clique". These milestones invite reflection on the man whose pen ignited the first sparks of the Great Proletarian Cultural Revolution and whose sharp ideological interventions left an indelible imprint on the political and cultural landscape of socialist China.

Two more "aadhaar-linked" Jharkhand deaths: 17 die of starvation since Sept 2017

Kaleshwar's sons Santosh and Mantosh Counterview Desk A fact-finding team of the Right to Feed Campaign, pointing towards the death of two more persons due to starvation in Jharkhand, has said that this has happened because of the absence of aadhaar, leading to “persistent lack of food at home and unavailability of any means of earning.” It has disputed the state government claims that these deaths are due to reasons other than starvation, adding, the authorities have “done nothing” to reduce the alarming state of food insecurity in the state.

Epic war against caste system is constitutional responsibility of elected government

Edited by well-known Gujarat Dalit rights leader Martin Macwan, the book, “Bhed-Bharat: An Account of Injustice and Atrocities on Dalits and Adivasis (2014-18)” (available in English and Gujarati*) is a selection of news articles on Dalits and Adivasis (2014-2018) published by Dalit Shakti Prakashan, Ahmedabad. Preface to the book, in which Macwan seeks to answer key questions on why the book is needed today: *** The thought of compiling a book on atrocities on Dalits and thus present an overall Indian picture had occurred to me a long time ago. Absence of such a comprehensive picture is a major reason for a weak social and political consciousness among Dalits as well as non-Dalits. But gradually the idea took a different form. I found that lay readers don’t understand numbers and don’t like to read well-researched articles. The best way to reach out to them was storytelling. As I started writing in Gujarati and sharing the idea of the book with my friends, it occurred to me that while...

What's behind Donald Trump's 'narco-state' accusation against Venezuela

By Manolo De Los Santos  The US government has revived its campaign to label Venezuela a "narco-state", accusing its top leadership of drug trafficking and slapping hefty bounties on their heads for capture. This campaign, which only momentarily took a backseat, is a strategic fabrication, not a factual assessment. This accusation, particularly amplified under the Trump Administration, is a calculated smokescreen to justify a long-standing agenda: the overthrow of the Venezuelan government and the seizure of its vast oil and mineral resources. A closer examination of the facts reveals a country that has actively fought drug trafficking on its own terms and a US government with a clear and consistent history of destabilizing independent countries in Latin America.

New RTI draft rules inspired by citizen-unfriendly, overtly bureaucratic approach

By Venkatesh Nayak* The Department of Personnel and Training , Government of India has invited comments on a new set of Draft Rules (available in English only) to implement The Right to Information Act, 2005 . The RTI Rules were last amended in 2012 after a long period of consultation with various stakeholders. The Government’s move to put the draft RTI Rules out for people’s comments and suggestions for change is a welcome continuation of the tradition of public consultation. Positive aspects of the Draft RTI Rules While 60-65% of the Draft RTI Rules repeat the content of the 2012 RTI Rules, some new aspects deserve appreciation as they clarify the manner of implementation of key provisions of the RTI Act. These are: Provisions for dealing with non-compliance of the orders and directives of the Central Information Commission (CIC) by public authorities- this was missing in the 2012 RTI Rules. Non-compliance is increasingly becoming a major problem- two of my non-compliance cases are...

N-power plant at Mithi Virdi: CRZ nod is arbitrary, without jurisdiction

By Krishnakant* A case-appeal has been filed against the order of the Ministry of Environment, Forest and Climate Change (MoEF&CC) and others granting CRZ clearance for establishment of intake and outfall facility for proposed 6000 MWe Nuclear Power Plant at Mithi Virdi, District Bhavnagar, Gujarat by Nuclear Power Corporation of India Limited (NPCIL) vide order in F 11-23 /2014-IA- III dated March 3, 2015. The case-appeal in the National Green Tribunal at Western Bench at Pune is filed by Shaktisinh Gohil, Sarpanch of Jasapara; Hajabhai Dihora of Mithi Virdi; Jagrutiben Gohil of Jasapara; Krishnakant and Rohit Prajapati activist of the Paryavaran Suraksha Samiti. The National Green Tribunal (NGT) has issued a notice to the MoEF&CC, Gujarat Pollution Control Board, Gujarat Coastal Zone Management Authority, Atomic Energy Regulatory Board and Nuclear Power Corporation of India Limited (NPCIL) and case is kept for hearing on August 20, 2015. Appeal No. 23 of 2015 (WZ) is filed, a...

1857 War of Independence... when Hindu-Muslim separatism, hatred wasn't an issue

"The Sepoy Revolt at Meerut", Illustrated London News, 1857  By Shamsul Islam* Large sections of Hindus, Muslims and Sikhs unitedly challenged the greatest imperialist power, Britain, during India’s First War of Independence which began on May 10, 1857; the day being Sunday. This extraordinary unity, naturally, unnerved the firangees and made them realize that if their rule was to continue in India, it could happen only when Hindus and Muslims, the largest two religious communities were divided on communal lines.

Ground reality: Israel would a remain Jewish state, attempt to overthrow it will be futile

By NS Venkataraman*  Now that truce has been arrived at between Israel and Hamas for a period of four days and with release of a few hostages from both sides, there is hope that truce would be further extended and the intensity of war would become significantly less. This likely “truce period” gives an opportunity for the sworn supporters and bitter opponents of Hamas as well as Israel and the observers around the world to introspect on the happenings and whether this war could have been avoided. There is prolonged debate for the last several decades as to whom the present region that has been provided to Jews after the World War II belong. View of some people is that Jews have been occupants earlier and therefore, the region should belong to Jews only. However, Christians and those belonging to Islam have also lived in this regions for long period. While Christians make no claim, the dispute is between Jews and those who claim themselves to be Palestinians. In any case...

Fate of Yamuna floodplain still hangs in "balance" despite National Green Tribunal rap on Sri Sri event

By Ashok Shrimali* While the National Green Tribunal (NGT) on Thursday reportedly pulled up the Delhi Development Authority (DDA) for granting permission to hold spiritual guru Sri Sri Ravi Shankar's World Culture Festival on the banks of Yamuna, the chief petitioners against the high-profile event Yamuna Jiye Abhiyan has declared, the “fate of the floodplain still hangs in balance.”