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IELTS Free Online Writing Practice - The role of urban green spaces in improving air quality

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Topic: The role of urban green spaces in improving air quality

Question: To what extent do you think that urban green spaces contribute to the improvement of air quality, and how can this be further enhanced by city planners and residents? Discuss your views with appropriate examples.

Model Answer:

Urban green spaces play a crucial role in improving air quality within cities. These green areas help absorb pollutants, reduce noise levels, and create an environment that encourages physical activity and social interaction among citizens. This essay will discuss the extent of their contribution to better air quality and suggest ways city planners and residents can enhance these benefits.

Firstly, urban green spaces are known to absorb carbon dioxide (CO2), a significant contributor to air pollution. According to research conducted by the European Environment Agency, trees and plants can remove approximately 1.5 million tons of CO2 annually from the atmosphere. This process not only reduces the overall amount of CO2 in the air but also helps mitigate the effects of climate change.

Secondly, green spaces in cities contribute to reducing the concentration of particulate matter (PM) and volatile organic compounds (VOCs), which are harmful pollutants known to cause respiratory problems and allergies. As these substances become trapped within vegetation, they are broken down or absorbed, ultimately improving air quality. Additionally, green spaces can also reduce the levels of nitrogen dioxide (NO2) and sulfur dioxide (SO2), which are emitted from vehicle exhausts and industrial processes.

To further enhance the benefits provided by urban green spaces, city planners should prioritize the development and preservation of these areas. This can be achieved through the integration of more parks, gardens, and green corridors into urban planning, ensuring that all residents have easy access to these spaces. Furthermore, the establishment of a network of green roofs on buildings and the use of permeable paving materials in construction projects can also help improve air quality by reducing stormwater runoff and capturing pollutants.

Residents can contribute to the improvement of air quality in urban green spaces by engaging in activities that support their growth, such as tree planting initiatives and community gardening projects. They can also reduce their reliance on cars by opting for public transportation, cycling, or walking, thereby reducing emissions from vehicle exhausts.

In conclusion, urban green spaces have a significant impact on air quality within cities. By integrating these areas into city planning and encouraging residents to participate in activities that support their growth, we can create healthier and more sustainable urban environments.

Score: Band 9 (Excellent)

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