A group of researchers from around the world recently published a research paper in the journal Nature Communications, claiming that 1005,000 deaths could have been prevented in 2017 by stopping fossil fuel combustion globally . More than half of these deaths are due to pollution caused by coal combustion.
This document examines the sources of air pollution and its health effects in a very comprehensive manner. This work has been done not only at the global level but also at the individual level in more than 200 countries and sub-national regions.
Other major global sources of pollution with coal combustion include the residential sector ( 0.74 million deaths , 19.2% burden of PM 2.5 ) , the industrial sector ( 0.45 million deaths , 11.7% burden of PM 2.5 ) and the energy sector ( 0.39 million deaths , PM 2.5 burden). 2.5 of 10.2% burden). Environmental PM 2.5 mortality burden in India and 58% of China stake, so the number of deaths due to overall air pollution in these two countries the most.
Dr Michele Bhava , a professor at the University of British Columbia’s School of Population and Public Health and lead author of this study report, said , ” We have known for some time now that air pollution causes a large number of people to die. Death happens. This study provides a starting point for the various countries in the world as well as providing a global perspective on the relative importance of different sources that address the air pollution on health care yet.
According to the study, the global average of PM2.5 in 2017 was 41.7 µg/m3 and 91% of the world’s population was experiencing an annual mean concentration much higher than the annual average of 10 µg/m3 set by the World Health Organization . The report also said that over 65% of the sub-national areas had PM 2.5 concentrations higher than their respective national averages. Annual average PM 2.5 concentration level of 150 µg/m3 in highly polluted areas around Kanpur and Singrauli This was four times the safe limit set by the Central Pollution Control Board and 15 times the level set by the World Health Organisation.
If we look at the top 9 countries with the most deaths due to air pollution, coal combustion is the biggest contributor to such deaths in China. There have been 315000 deaths due to this , which is 22.7 percent of the total . In Egypt , Russia and the United States, oil and natural gas pollution is the biggest cause of death due to pollution there. Pollution from oil and natural gas accounts for 27% or 9000 to 13,000 deaths in these countries . Solid fossil fuels are the biggest polluters in India , Indonesia , Bangladesh , Pakistan and Nigeria. In these countries, it accounts for 36% of the total or 2.5 lakh deaths. Major polluting sources in India include residential sector (25.7%), industry (14.8%), energy (12.5%), agriculture (9.4%), garbage (4.2%) and other types of combustion (3.1 %).
This study also proves that the sources of pollution differ at the sub-national level. In addition, the study underscores the importance of developing strategies to improve air quality at the regional level. In China and India, for example, household pollutants are the largest source of average exposure to PM 2.5 and deaths due to them. The energy and industry sectors contribute relatively more to air pollution in areas around Beijing and Singrauli (Madhya Pradesh , India) , as India and China have the highest number of PM 2.5 -related deaths. so these two If countries completely ban the combustion of coal , oil and natural gas, then the burden of deaths due to PM 2.5 can be reduced by about 20% worldwide. Previous research has shown that there was a 60% drop in pollution from coal burning in China between 2013 and 2017 . However, years between 2017 and 2015 these sources of pollution in India was increasing by 7%.
Dr. Erin McDuffie, a visiting research associate at Washington University in St. Louis and the study’s first author, made it clear that the countries with the most deaths related to air pollution are most likely to be contributed by human-made polluting sources. ” How many deaths occurred due to air pollution from a particular source ? The comparison made in this study is extremely important. Especially when we think about the mitigation of pollution. Finally, it will be important to consider the sources at the sub-national scale. Especially since, when air pollution are being developed mitigation strategies related to low.
Prolonged exposure to air pollution caused by fine particulate matter kills an average of 4 million people worldwide every year . These include deaths from heart disease , lung cancer , severe lung disease , stroke , respiratory tract infections, and type 2 diabetes. The massive data set used in this study is the first to be used to estimate the global contribution of more than 20 individual pollution sources. These 20 individual pollution sources include sectors such as agriculture , transportation , energy generation , waste and household electricity use. It is also the first study of its kind to assess the global impacts of pollution caused by the burning of specific fuels such as solid biomass , coal , oil and natural gases.