11. SUSTAINABLE CITIES AND COMMUNITIES

World can now breathe easier, says new air pollution study

World can now breathe easier, says new air pollution study
Written by ZJbTFBGJ2T

World can now breathe easier, says new air pollution study  Mint Lounge

World can now breathe easier, says new air pollution study

According to a new study, global population-weighted PM2.5 exposure has steadily decreased from 2011 to 2019, allowing the world to breathe better

Ambient Fine Particulate Matter and its Impact on Air Pollution

A constant part of talks about air pollution has been ambient fine particulate matter (or PM), the world’s leading environmental health risk factor. Research has shown that only at 2.5 micrometres or smaller, these particles are small enough to be inhaled, causing respiratory and cardiovascular issues.

Reduction of Global Population-Weighted PM2.5 Exposure

A new study has shown that global population-weighted PM2.5 exposure has steadily decreased from 2011 to 2019, allowing the world to breathe better. Over the years, many nations have adopted different initiatives to reduce PM2.5 particles, which are mainly produced by traditional energy sources such as burning fossil fuels or wood. To understand the effectiveness of these mitigation efforts, researchers examined PM2.5 data from 1998 to 2019.

Findings and Regional Contributions

The findings, published recently in the journal Nature Communications, showed that global, population-weighted PM2.5 exposure increased from 1998 to a peak in 2011, then decreased steadily from 2011 to 2019. This reduction was mainly due to the strict air quality management in China, which has been more evident since 2013. The benefits of the reduction include 1.1 million fewer premature deaths in China between 2011 and 2019 and overall improved health.

Before this study, there was a knowledge gap regarding “quantitative local/regional contributions to global population exposure to PM2.5 and its changes.” The researchers developed a new regional decomposition approach that considered pollution level and population size, depicting the first-ever time series of regional contributions to global PM2.5 air pollution.

Importance of Further Mitigation Efforts

Although the decrease in global population-weighted PM2.5 exposure is good news, the researchers emphasize that further mitigation efforts are crucial. Population ageing and growth are the main challenges in alleviating PM2.5 health impacts. Millions of people are still dying prematurely worldwide due to exposure to PM2.5, highlighting the need for continued reduction. Monitoring regions that are highly populated but poorly monitored, such as South Asia and the Middle East, is important for mitigation efforts.

SDGs, Targets, and Indicators in the Article

1. Which SDGs are addressed or connected to the issues highlighted in the article?

  • SDG 3: Good Health and Well-being
  • SDG 7: Affordable and Clean Energy
  • SDG 11: Sustainable Cities and Communities
  • SDG 13: Climate Action

The article discusses the issue of air pollution and its impact on health, energy sources, urban environments, and climate change. These issues are directly connected to the Sustainable Development Goals mentioned above.

2. What specific targets under those SDGs can be identified based on the article’s content?

  • SDG 3.9: By 2030, substantially reduce the number of deaths and illnesses from hazardous chemicals and air, water, and soil pollution and contamination.
  • SDG 7.1: By 2030, ensure universal access to affordable, reliable, and modern energy services.
  • SDG 11.6: By 2030, reduce the adverse per capita environmental impact of cities, including by paying special attention to air quality and municipal and other waste management.
  • SDG 13.2: Integrate climate change measures into national policies, strategies, and planning.

The article highlights the need to reduce air pollution to improve health outcomes (SDG 3.9), the role of clean energy sources in mitigating pollution (SDG 7.1), the importance of addressing air quality in urban areas (SDG 11.6), and the connection between air pollution and climate change (SDG 13.2).

3. Are there any indicators mentioned or implied in the article that can be used to measure progress towards the identified targets?

  • PM2.5 exposure levels: The article mentions that global population-weighted PM2.5 exposure has steadily decreased from 2011 to 2019. This indicator can be used to measure progress towards reducing air pollution-related deaths and illnesses (SDG 3.9).
  • Reduction in premature deaths: The study shows that the reduction in PM2.5 exposure in China led to 1.1 million fewer premature deaths between 2011 and 2019. This indicator can be used to measure progress towards the target of reducing deaths from air pollution (SDG 3.9).
  • Air quality management: The strict air quality management in China is highlighted as a major contributor to the global reduction in PM2.5 exposure. This indicator can be used to measure progress towards improving air quality in cities (SDG 11.6).

Table: SDGs, Targets, and Indicators

SDGs Targets Indicators
SDG 3: Good Health and Well-being 3.9: By 2030, substantially reduce the number of deaths and illnesses from hazardous chemicals and air, water, and soil pollution and contamination. – PM2.5 exposure levels
– Reduction in premature deaths
SDG 7: Affordable and Clean Energy 7.1: By 2030, ensure universal access to affordable, reliable, and modern energy services. – Reduction in PM2.5 exposure through clean energy sources
SDG 11: Sustainable Cities and Communities 11.6: By 2030, reduce the adverse per capita environmental impact of cities, including by paying special attention to air quality and municipal and other waste management. – Air quality management
SDG 13: Climate Action 13.2: Integrate climate change measures into national policies, strategies, and planning. – Connection between air pollution and climate change

Behold! This splendid article springs forth from the wellspring of knowledge, shaped by a wondrous proprietary AI technology that delved into a vast ocean of data, illuminating the path towards the Sustainable Development Goals. Remember that all rights are reserved by SDG Investors LLC, empowering us to champion progress together.

Source: lifestyle.livemint.com

 

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