The global burden of disease associated with air pollution exposure exacts a massive toll on human health worldwide: exposure to air pollution is estimated to cause millions of deaths and lost years of healthy life annually. The burden of disease attributable to air pollution is now estimated to be ...on a par with other major global health risks such as unhealthy diet and tobacco smoking, and air pollution is now recognized as the single biggest environmental threat to human health.
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During the first year of the Covid-19 pandemic, the world’s economy slowed. Yet, the global annual average particulate pollution (PM2.5) was largely unchanged from 2019 levels. At the same time, growing evidence shows air pollution—even when experienced at very low levels—hurts human health. T...his recently led the World Health Organization (WHO) to revise its guideline for what it considers a safe level of exposure of particulate pollution, bringing most of the world—97.3 percent of the global population—into the unsafe zone. The AQLI finds that particulate air pollution takes 2.2 years off global average life expectancy, or a combined 17 billion life-years, relative to a world that met the WHO guideline. This impact on life expectancy is comparable to that of smoking, more than three times that of alcohol use and unsafe water, six times that of HIV/AIDS, and 89 times that of conflict and terrorism.
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India is the world’s second most polluted country. Air pollution shortens average Indian life expectancy by 5 years,
relative to what it would be if the World Health Organization (WHO) guideline fine particulate pollution (PM2.5) of 5 μg/m3 was met. Some areas of India fare much worse than avera...ge, with air pollution shortening lives by almost 10
years in the National Capital Territory of Delhi, the most polluted city in the world.
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Virtually all (99.9 percent) of Southeast Asia’s 656.1 million people live in areas where particulate pollution exceeds the World Health Organization (WHO) guideline of 5 μg/m³. Despite the lockdowns of the pandemic, pollution continued to rise in much of Southeast Asia in 2020. This pollution c...uts short the life expectancy of the average Southeast Asian person by 1.5 years, relative to what it would be if the WHO guideline was met. That’s a total of 959.8 million person-years lost to pollution in the eleven countries that make up this region. Some countries in the region experience greater impacts from pollution.
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In Central and West Africa, regions together comprising 27 countries and 605 million people, the average person is exposed to particulate pollution levels that are more than 4 times the World Health Organization’s (WHO) guideline of 5 μg/m³1. If these particulate pollution levels persist, averag...e life expectancy in the regions would be 1.6 years lower, and a total of 971 million person-years would be lost, relative to if air quality met the WHO guideline. The Democratic Republic of the Congo, Rwanda and Burundi, are the top three most polluted countries in the region.
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Bangladesh is the world’s most polluted country. Air pollution shortens the average Bangladeshi’s life expectancy by 6.9 years, relative to what it would be if the World Health Organization (WHO) guideline of 5 μg/m³ was met. Some areas of Bangladesh fare much worse than average, with air poll...ution shortening lives by nearly 9 years in Dhaka, the country’s most polluted city.
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Pakistan is the world’s fourth most polluted country. Air pollution shortens the average Pakistani’s life expectancy by 3.8 years, relative to what it would be if the World Health Organization (WHO) guideline of 5 μg/m3 was met.1 Some areas of Pakistan fare much worse than average, with air pol...lution shortening lives by almost 7 years in the country’s most polluted regions, like Lahore and Peshawar.
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Nepal is the world’s third most polluted country. Air pollution shortens average Nepalese life expectancy by 4.1 years, relative to what it would be if the World Health Organization (WHO) guideline of 5 μg/m3 was met.1 The highest concentrations of air pollution are observed in Nepal’s southwes...tern districts, which share their borders with the highly-polluted Indo-Gangetic Plain of India. Here, residents stand to lose nearly 7 years of life expectancy.
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Air pollution’s impact on life expectancy in Nigeria is greater than that of HIV/AIDS and almost on par with malaria and unsafe water and sanitation, shortening the average Nigerian’s life expectancy by 1.8 years, relative to what it would be if the World Health Organization (WHO) guideline of 5... μg/m3 was met.1 Some areas of Nigeria fare much worse than average, with air pollution shortening lives by almost 4 years on average in parts of Taraba state in Northeastern Nigeria.
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Explore historical emissions of air pollutants from fuel use globally.
This report provides an overview of air pollution levels and associated health impacts in cities around the world. Since urban areas are often hotspots for poor air quality, city-level data can help to inform targeted efforts to curb urban air pollution and improve public health. This report draws o...n data from the Global Burden of Disease project and from peer-reviewed analyses led by Susan Anenberg of the George Washington University.
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UNCTAD sets out actions to support least developed countries in the global low-carbon transition
New report says COP27 is an opportunity to accelerate action to achieve mutually beneficial climate and development goals in the world's most vulnerable countries.
This document summarizes several air quality measurement and modelling methods that can be used to estimate ground-level air pollutant concentrations and presents multiple approaches to monitoring ambient air pollution at different spatial and temporal scales. These methods are crucial for estimatin...g population exposures, which can be defined as the product of the pollutant concentration and the time over which a person is in contact with this pollutant.
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In 2019, WHO estimated that 6.7 million premature deaths could be attributed to ambient and household air pollution from particulate matter (particles with a diameter less than 2.5 μm, PM2.5. Of the 4.2 million deaths attributed specifically to ambient air pollution exposures.
WHO Air Quality Guidelines set goals to protect millions of lives from air pollution
This report describes the “Building health workers capacity on air pollution and health” pilot workshop held in Ghana in 2022 which aimed at testing the training material of the first WHO Air Pollution and Health Training toolkit (APHT) targeting health professionals. APHT aims at strengthening ...the knowledge of health workers on air pollution and health and to enable them to effectively communicate with patients and communities on how to reduce their risk, to advocate for population level interventions as well as to train other peers and colleagues using a train-the-trainer approach. This workshop report serves as a tool and example of a training that can be replicated and adapted to other contexts and settings based on country and regional priorities and needs.
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Almost the entire Rwandan population (98.5%) relies on polluting fuels, particularly firewood and charcoal, for cooking. Access to clean energy such as electricity is still limited. In 2022, 70% of the population lived in towns and villages that have electricity – 49% from the national grid and 21...% from off-grid (mainly solar) systems. When access is defined as connection and use of households to electricity, an estimated 47% of households had access in 2020, representing 86% of the urban population but only 38% of the rural population.
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According to the 2016 Nepal Demographic and Health Survey, 66% of Nepali households use mainly solid fuel for cooking on inefficient stoves. Incomplete fuel combustion of solid fuels emits greenhouse gases and harmful smoke, contributing to climate change, forest degradation, ill health and preventa...ble deaths. Further, the physical burden and time necessary to collect wood for fuel is borne primarily by women and children, thus compromising their productive time, such as social activities and education.
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A systematic review of the evidence has demonstrated the key role of clean household energy in improving global health, reaffirming the importance of United Nations’ Sustainable Development Goal (SDG) 7, to achieve worldwide access to affordable, modern and clean energy by 2030.