scholarly journals Water crisis in São Paulo evaluated under the disaster's point of view

2016 ◽  
Vol 19 (1) ◽  
pp. 21-42 ◽  
Author(s):  
Érico Soriano ◽  
Luciana de Resende Londe ◽  
Leandro Torres Di Gregorio ◽  
Marcos Pellegrini Coutinho ◽  
Leonardo Bacellar Lima Santos
Keyword(s):  
Risk Management ◽  
Water Supply ◽  
Disaster Risk ◽  
Sao Paulo ◽  
Point Of View ◽  
Metropolitan Region ◽  
Water Crisis ◽  
São Paulo ◽  
Management Processes ◽  
Response And Recovery

Abstract Brazil's Southeast region has been facing water supply challenges, especially concerning the metropolitan region of São Paulo, since 2014. We adressed the water crisis from the disaster's point of view, considering that one of the guiding features to characterize a disaster is the amount of affected people and the losses associated. In the situation under review, there are people directly affected, because of intermittent house water supply, and indirectly affected by the increase of prices for goods, since their production and manufacturing depend on the availability of water. We presented each of the stages of a disaster risk management: prevention, mitigation, preparedness, response and recovery. The risk of water scarcity in São Paulo is only one aspect of the discussion involving the effectiveness of management processes and the need for investments in the area, especially in reducing wasteful distribution.

scholarly journals A satellite-based investigation into the algae bloom variability in large water supply urban reservoirs during COVID-19 lockdown

2021 ◽  
Author(s):  
Enner Alcantara ◽  
Keyla Coimbra ◽  
Igor Ogashawara ◽  
Thanan Rodrigues ◽  
Jose Mantovani ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Use ◽  
Sao Paulo ◽  
Metropolitan Region ◽  
Treated Wastewater ◽  
Landsat 8 ◽  
São Paulo ◽  
Environmental Consequences ◽  
First Case ◽  
The Impact

Abstract Here we report the first case study of the significant algae blooming in large reservoirs in relation to the COVID-19 lockdown in Sao Paulo, Brazil. Chlorophyll-a (Chl-a) and phycocyanin (PC) concentrations were analyzed in the Guarapiranga and Billings reservoirs, which supply daily water use for over 20 million people and receives treated wastewater. We employed field-calibrated Sentinel 2 MSI and Landsat 8 OLI images to map the spatial patterns of Chl-aand PC over the two period: before (April, August and October 2019) and more than a month after the lockdown in Sao Paulo due to the rapid spread of the COVID-19 in Brazil (April 2020). We found a significant increase in algae blooming (both Chl-a and PC) in both reservoirs in April 2020, compared to the same month of 2019. We show that the episodic algae blooming is strongly related to the increased inflows of the residential wastewater from the surrounding watersheds, because the household water use has increased ~3.2% in April 2020, while the runoff into the reservoirs driven by the rainfall was much lower in 2020 compared to the previous year for the same month. In the case of Guarapiranga Reservoir, PC increased nearly 500% in April 2020 compared to April 2019. Given the importance of Billings and Guarapiranga reservoirs for the water supply of the Metropolitan Region of Sao Paulo (MRSP), the abrupt occurrence of cyanobacteria blooms related to the state’s lockdown should be considered a major concern for public and environmental health of the region. Although several environmental consequences have been reported due to the COVID-19 worldwide, this study is the first to report the impact of COVID-19 on the trophic state in the tropical reservoirs.

scholarly journals Governing complexity and environmental justice: lessons from the water crisis in Metropolitan São Paulo (2013-2015)

2020 ◽  
Vol 53 ◽  
Author(s):  
Pedro Henrique Campello Torres ◽  
Pedro Luiz Côrtes ◽  
Pedro Roberto Jacobi
Keyword(s):  
Water Governance ◽  
Sao Paulo ◽  
Metropolitan Region ◽  
Water Crisis ◽  
São Paulo ◽  
Social Actors ◽  
The Government ◽  
Governance Processes ◽  
The Impact

The paper presents a discussion on the water crisis that occurred between 2013 and 2015 in the Metropolitan Region of São Paulo, the lack of integrated natural resources planning, and the reaction of social actors affected by the crisis. The region was affected by an extreme hydrological and climatological event, which was combined with the unsustainable management of water resources. The paper addresses, initially, the dynamics of water governance in the region, and the main aspects related to water availability and climate dependence that caused the water crisis. Then, we present an analysis of the process that led to the water crisis and its main developments, which is based on the follow-up of the different moments of the crisis and dialogues with its relevant stakeholders. The results indicate the relevance of emphasizing issues on matters such as the lack of transparency and highlight the role of societal initiatives. We conclude the paper with a proposition to discuss governance processes that can contribute to the development of more effective initiatives in order to reduce the impact of this visible change in water regimes, strengthen transparent management, and promote a more democratic interaction between social actors and the government.

scholarly journals Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1517 ◽  
Author(s):  
Marianne Milano ◽  
Emmanuel Reynard ◽  
Graziele Muniz-Miranda ◽  
Joana Guerrin
Keyword(s):  
Rain Gauge ◽  
Sao Paulo ◽  
Metropolitan Region ◽  
Water Crisis ◽  
São Paulo ◽  
Austral Spring ◽  
The North ◽  
Climatic Anthropogenic ◽  
Climatic Characteristics ◽  
Precipitation Events

São Paulo metropolitan region experienced an acute water crisis between 2013 and 2015. According to the Brazilian and international press, it was due to climatic, anthropogenic, and water management factors. This paper assesses the hydro-climatic characteristics of the crisis by focusing on the Alto-Tietê basin and the headwater of the Piracicaba-Capivari-Jundiaí (PCJ) basin that supply 70% of the water consumed in the metropolis. Based on 16 rain-gauge stations, 5 runoff-gauge stations, and several statistical analyses carried over the 1951–2015 period, this assessment shows that the 2013–2015 hydro-climatic crisis resulted from a large number of days without rain in the north of the Alto-Tietê basin and to less intense precipitation events in the headwaters of the PCJ basin during the austral spring 2013 and the year 2014. It also defines a return period of 98 years for observed river flows in 2014. Despite the rare nature of this hydrological drought, the need for efficient water saving policies is brought forward.

Cooking oil waste recycling experiences worldwide: a preliminary analysis of the emerging networks in the São Paulo Metropolitan Region, Brazil

2017 ◽  
Vol 13 (3) ◽  
pp. 189 ◽  
Author(s):  
Mauro Silva Ruiz ◽  
Rosicler Barbosa De Oliveira ◽  
Aldo Struffaldi ◽  
Marcelo Luiz Dias Da Silva Gabriel ◽  
Evandro Bocatto
Keyword(s):  
Preliminary Analysis ◽  
Waste Recycling ◽  
Sao Paulo ◽  
Metropolitan Region ◽  
São Paulo ◽  
Cooking Oil

scholarly journals Anomalous scales of Tillandsia usneoides (L.) L. (Bromeliaceae) exposed in the Metropolitan Region of Campinas, SP, Brazil as air pollution markers

Hoehnea ◽  
2015 ◽  
Vol 42 (4) ◽  
pp. 749-757 ◽  
Author(s):  
Patrícia Giampaoli ◽  
Natalie do Valle Capelli ◽  
Armando Reis Tavares ◽  
Francine Faia Fernandes ◽  
Marisa Domingos ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Pollutants ◽  
Sao Paulo ◽  
Initial Evaluation ◽  
Metropolitan Region ◽  
São Paulo ◽  
Paulo State ◽  
Tillandsia Usneoides ◽  
São Paulo State

Tillandsia usneoides is an epiphytic bromeliad that has been used as a universal bioindicator. The species accumulates metals and presents foliar scale variations when exposed to air pollutants. This study aimed to use the variations in foliar scales as microscopic markers of pollutant effects in the Metropolitan Region of Campinas (MRC), São Paulo State, Brazil. T. usneoides plants were exposed for 12 weeks during dry and wet seasons, totaling four exposures, at five sites in the MRC. Samples were selected before each exposure for initial evaluation of the plants (T0). Leaf fragments were fixed in glutaraldehyde and total scale density and anomalous scale percentage were evaluated. Plants exposed in the MRC showed anomalies and changes in number of subperipheral cells of leaf scales. When compared to T0, T. usneoides presented higher total scale density and anomalous scale percentage at disturbed sites, thus the species can be used as a pollution bioindicator for MRC.

Sign in / Sign up

Export Citation Format

Share Document