Blue-Green Infrastructure in cities
climate change adaptation and reducing water pollution by pharmaceutical micropollutants
Abstract
In the context of climate change, city planning needs to seek holistic solutions that, in addition to mitigating the effects of climate change, can move towards the solution of other urban environmental problems. The pollution of urban waters is a critical problem in Brazilian cities that still have a deficient sanitary infrastructure. While emerging pollutants in developed countries have already occupied a prominent place in discussions, these pollutants have not received attention in Brazil. This paper discusses using the Blue-Green Infrastructure (BGI) as a systemic solution for cities, discussing its potential to remove pharmaceutical micropollutants, its feasibility, and possible scenarios for implementation in the city Curitiba. The first part of the paper discusses the effects of climate change on the water regime of cities, conceptualizes BGIs, and discusses pollution by pharmaceutical micropollutants as a new urban challenge. In the second part of the paper, the scenarios for the implantation of BGIs in Curitiba, available areas, costs, urban potentialities, and the most suitable types of plants are investigated and discussed. BGIs, with their multifunctionality and low cost, have the potential to spread across the developing world, pointing to the future of cities and urban planning.
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