Julio Chiquetto

Julio Chiquetto
University of São Paulo | USP · School of Arts, Sciences and Humanities

PhD
Post-doc Researcher at university of São Paulo, Environmental Management. Lecturer at FLACSO Brasil.

About

46
Publications
27,279
Reads
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219
Citations
Introduction
Post-doc researcher at the University of São Paulo, researching scientific production and dissemination on climate change. Lecturer at FLACSO Brasil and Centro Universitário Ítalo-Brasileiro. I work with interdisciplinary approaches to air pollution and climate change in the urban environment. Geographer with a PhD in Physical Geography and post-doc by the Institute of Advanced Studies at the University of São Paulo. Awarded an honourable mention by the National Post-Graduate Agency of Brazil.
Additional affiliations
March 2019 - October 2020
University of São Paulo
Position
  • PostDoc Position
Description
  • Post-Doc researcher at the USP Global Cities program, acting as a researcher representative among the researchers, coordination and staff.
August 2012 - August 2016
University of São Paulo
Position
  • PhD

Publications

Publications (46)
Article
Full-text available
Ozone events in South America might be triggered by increasing air temperatures and dry conditions, leading to vulnerable population exposure. The current air quality standards and attention levels in São Paulo state, Brazil, are 40% higher and 25% higher, respectively, than the limits recommended by the World Health Organization (WHO). We simulate...
Article
From May 21st to 31st, 2018, a truck driver strike greatly decreased all vehicle activity in Brazil. We evaluated the concentrations of criteria pollutants in seven different microenvironments during this period in the S ̃ao Paulo Megacity. Results were evaluated by violin plots, the Kruskal-Wallis test and diurnal cycles, comparing the year 2018 t...
Article
The present work aims to estimate future transportation scenarios for the Metropolitan Region of Sao Paulo, Brazil, and test their potential to abate air pollutants, greenhouse gases and heat emissions from vehicular activity. The estimations were performed for 2028 and 2038, using the State Environmental Agency’s official methodology and the fleet...
Chapter
Full-text available
A cidade de São Paulo e sua região metropolitana apresentam marcadas desigualdades socioeconômicas e de injustiça ambiental, onde as condições precárias de mobilidade urbana levam à congestionamentos, exclusão social e à emissão de poluentes e gases de efeito estufa. O Plano Diretor Estratégico de São Paulo de 2014 apresenta diretrizes para reequil...
Article
Urban mobility conditions play a main role in shaping inequalities in megacities. In the municipality of São Paulo, work-related trips take 62% longer, are 100% more lengthy and 25% more motorized compared to other reasons. The objective of this work is to quantitatively assess the city's master plan guidelines which encourage the decrease in the j...
Article
Full-text available
Worldwide monitoring of fossil fuel carbon dioxide (FFCO2) has been fragmented, and mostly devoted to developed countries. Here we compare a previously published FFCO2 dataset with socio-economic characteristics in order to better tailor FFCO2 urban point-sources for a megacity of the Global South, the Metropolitan Area of Rio de Janeiro (MARJ), Br...
Conference Paper
Full-text available
As mudanças climáticas interferem diretamente na dinâmica natural e balanço hídrico de uma bacia hidrográfica, e consequentemente geram impactos ambientais, com reflexos nas dimensões econômica, social e cultural. O que se verificou é que as Mudanças Climáticas acabam por se caracterizar, conforme a tese de Ribeiro (2010), como uma Ordem Ambiental...
Article
Full-text available
In January 2020, an extreme precipitation event occurred over southeast Brazil, with the epicentre in Minas Gerais state. Although extreme rainfall frequently occurs in this region during the wet season, this event led to the death of 56 people, drove thousands of residents into homelessness, and incurred millions of Brazilian Reais (BRL) in financ...
Article
Full-text available
The scope of this work was to evaluate simulated carbon monoxide (CO) and aerosol optical depth (AOD) from the CAM-chem model against observed satellite data and additionally explore the empirical relationship of CO, AOD and fire radiative power (FRP). The simulated seasonal global concentrations of CO and AOD were compared, respectively, with the...
Article
Full-text available
With the rising trends in elderly populations around the world, there is a growing interest in understanding how climate variability is related to the health of this population group. Therefore, we analyzed the associations between mortality in the elderly due to cardiovascular (CVD) and respiratory diseases (RD) and meteorological variables, for t...
Article
Full-text available
Cities are undergoing profound transformations in the fields of health, culture, social relations, and especially in urban life, causing numerous reflections and questions to the city model that can be enjoyed after the pandemic of COVID-19, highlighting the importance and the role of public spaces and green areas in exceptional periods as in the c...
Article
Full-text available
The focus of this study was to measure the Volatile Organic Compounds (VOCs) concentrations in the megacity – São Paulo Metropolitan Area (SPMA). The measurements analyzed in this study included 78 hydrocarbon (HC) samples collected during 2006, and 66 samples of HC, 62 of aldehydes and 42 of ethanol collected during 2011-2012. The observational re...
Article
Full-text available
he focus of this study was to measure the Volatile Organic Compounds (VOCs) concentrations in the megacity – São Paulo Metropolitan Area (SPMA). The measurements analyzed in this study included 78 hydrocarbon (HC) samples collected during 2006, and 66 samples of HC, 62 of aldehydes and 42 of ethanol collected during 2011-2012. The observational res...
Article
Full-text available
Air pollution is associated to poor urban mobility conditions, as in the megacity of São Paulo. Three scenarios of policies of driving restrictions were simulated using the WRF/Chem model, to assess the impacts on ozone pollution and the consequences for environmental justice: urban toll, sustainable transition, and vehicle free zone. Results show...
Chapter
Full-text available
A poluição do ar tornou-se um dos fatores que mais afetam a qualidade de vida da população, ocasionando prejuízos à saúde humana e ao meio ambiente. Emissões de gases por veículos automotores comprometem significativamente a qualidade do ar na Região Metropolitana de São Paulo (RMSP) por liberarem grande quantidade de monóxido de carbono (CO), mate...
Chapter
Full-text available
A poluição do ar tornou-se um dos fatores que mais afetam a qualidade de vida da população, ocasionando prejuízos à saúde humana e ao meio ambiente. Emissões de gases por veículos automotores comprometem significativamente a qualidade do ar na Região Metropolitana de São Paulo (RMSP) por liberarem grande quantidade de monóxido de carbono (CO), mate...
Book
Full-text available
Apresentamos neste guia um conjunto de propostas contendo itens de agenda que possam contribuir para as campanhas dos candidatos aos cargos municipais de vereadores/as e prefeitos/as das cidades brasileiras. Este documento tem três objetivos principais. O primeiro é fornecer parâmetros que possam balizar a decisão de candidatos a cargos de vereador...
Article
Full-text available
A poluição do ar é influenciada por fatores naturais e antropogênicos. Quatro pontos de monitoramento (veicular, comercial, residencial e background urbano (BGU))da poluição do ar em São Paulo foram avaliados durante 16 anos, revelando diferenças significativas devidoao uso do solo em todas as escalas temporais. Na escala diurna, as concentrações d...
Preprint
With the rising trends in elderly populations around the world, there is a growing interest in understanding how climate sensitivity is related to their thermal perception. Therefore, we analyzed the associations between mortality in the elderly due to cardiovascular (CVD) and respiratory diseases (RD) and meteorological variables, for three cities...
Poster
Full-text available
A poluição do ar tornou-se um dos fatores que mais afetam a qualidade de vida da população, ocasionando prejuízos à saúde humana e ao meio ambiente. Emissões de gases por veículos automotores comprometem significativamente a qualidade do ar na Região Metropolitana de São Paulo (RMSP) por liberarem grande quantidade de monóxido de carbono (CO), óxid...
Conference Paper
Full-text available
Na Região Metropolitana de São Paulo (RMSP), ocorre expressiva concentração industrial do final do século XIX até a década de 1970. Neste trabalho, buscou-se analisar a evolução histórica da poluição atmosférica na RMSP do ponto de vista de processos de sua dinâmica urbana, tais como a concentração industrial e sua subsequente desconcentração, o fo...
Article
Full-text available
Fossil fuel-derived CO2 (Cff) emission patterns and their point sources across the Rio de Janeiro megacity and state were estimated from a single regional-scale Δ14C distribution map based on isotopic measurements of ipê leaves (Tabebuia, a popular flowering deciduous perennial tree). Data from multi-year sampling (i.e., 2014–2016) was renormalized...
Conference Paper
Full-text available
A poluição do ar representa sérios riscos à saúde. A emissão de poluentes é influenciada por tecnologias e pode ser regulada por políticas públicas. Os poluentes impactam a saúde, mas o percurso entre a fonte e os receptores é intermediado pelas condições atmosféricas e pelas características de exposição da população. A Organização Mundial da Saúde...
Conference Paper
Full-text available
A qualidade do ar afeta diretamente a saúde da população, em especial nos grandes centros urbanos. Durante o período de 21 a 31 de maio de 2018, ocorreu uma greve de caminhoneiros no Brasil, que paralisou não apenas a circulação de veículos pesados, mas também grande diminuição na circulação de veículos leves. O objetivo deste trabalho foi de avali...
Conference Paper
Full-text available
Análise de 16 anos de dados horários de O3, CO, NO, NO2 e MP10 provenientes de quatro pontos de monitoramento na megacidade de São Paulo encontrou diferenças significativas (estatisticamente) nas concentrações dos poluentes de acordo com a classe de uso do solo urbano em ambas as escalas temporais avaliadas. Na escala diurna/semanal, as concentraçõ...
Conference Paper
Full-text available
Air pollution is a complex challenge in megacities. Driving Restriction Policies (DRP) have potential to confront both air pollution and urban mobility problems. Using the WRF/Chem model, we performed air pollution simulations during a period favourable for ozone concentrations. A control scenario of vehicular emissions (A) was compared to scenario...
Article
Full-text available
The land-sea breeze circulation is important for the Metropolitan Region of São Paulo (MRSP), influencing predominant wind direction during the night and day, and so, the transport of pollution in the local scale. In the summer of 2014, there were 43 exceedances of the state air quality by ozone, when the South Atlantic Subtropical High strengthene...
Article
Full-text available
High ozone (O3) concentrations are a major concern for air quality in the São Paulo Metropolitan Area (SPMA). During 2016, the 8 hours state standard of 140 µg m–3 was exceeded on 32 days, whereas the 1-hour national standard of 160 µg m–3 was exceeded on 76 days. Exposure to such unhealthy O3 levels and other pollutants can lead to respiratory dis...
Article
Full-text available
The precipitation estimates from the Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (named TMPA and TMPA-RT for the near real-time version) are widely used both in research and in operational forecasting. However, they will be discontinued soon. The products from the Integrated Multi-satellite Retrievals for Globa...
Poster
Full-text available
A circulação secundária de brisa marítima e continental tem importância crucial na circulação atmosférica na Região Metropolitana de São Paulo (RMSP), determinando a direção predominante do vento durante o dia e à noite. Devido à intensa emissão de poluentes na área de estudo, ela adquire papel fundamental no transporte de poluentes na escala local...
Conference Paper
Full-text available
BRAMS model carbon monoxide (CO) operational forecasting for 24h, 48h and 72h forecast lengths were evaluated using measurements from Osasco and Congonhas monitoring stations of the State Environmental Company (CETESB). The studied period ranges from May 2012 to December 2015. Annual averages, diurnal and monthly annual mean cycles were analysed, a...
Conference Paper
Full-text available
Rio de Janeiro was the hosting city of the Olympic Games in 2016. Monitoring and forecasting the air quality in the Metropolitan Area of Rio de Janeiro (MARJ) became a priority in order to support government agencies and population during this period. For that, the air quality forecast system for MARJ (AQFS-MARJ) in high resolution (1km of grid spa...
Poster
Full-text available
In this work, we used the CAM-chem model that considers only tropospheric chemistry (tropm), and another model with the same configurations, but with added mechanisms of reactions in the stratosphere (tropstratm). Observations of AOD from Moderate Resolution Imaging Spectroradiometer sensor (MODIS) and CO from satellite Measurements of Pollution in...
Article
Full-text available
Land use and land cover maps, and their physical-chemical and biological properties are important variables in the numerical modeling of Earth systems. In this context, the main objective of this study is to analyze the improvements resulting from the land use and land cover maps update in numerical simulations performed using the Regional Climate...
Article
Full-text available
High-ozone concentrations currently represent the main air pollution problem in the city of São Paulo, Brazil. To elucidate the main volatile organic compounds (VOCs), which act as ozone precursors, samples from air quality monitoring stations were evaluated. Thirty-five samples were collected in August–September of 2006 and 43 in July–August of 20...
Article
Full-text available
Air pollution is an important public health issue. High levels of carbon monoxide in the atmosphere are hazardous to human health. Studies regarding the concentration of this and other gases in the atmosphere allow political actions to manage and reduce the emission of pollutants. In this context, this paper studied the annual, seasonal, weekly and...
Preprint
Full-text available
Air pollution is an important public health issue. High levels of carbon monoxide in the atmosphere are hazardous to human health. Studies regarding the concentration of this and other gases in the atmosphere allow political actions to manage and reduce the emission of pollutants. In this context, this paper studied the annual, seasonal and daily v...
Article
Full-text available
Resumo: A poluição do ar nas grandes metrópoles constitui um desafio complexo e importante, e a construção de parques urbanos impacta positivamente a qualidade de vida nestes ambientes. Na Região Metropolitana de São Paulo, a emissão de poluentes por veículos, influenciada pelo uso do solo, interage com a atmosfera, resultando em significativas var...
Presentation
Full-text available
The Brazilian Earth System Model (BESM) simulations demonstrate great potential to contribute to the international efforts on global climate and climate change research within the Brazilian climate modeling community. Currently, the Center for Weather Forecasting and Climate Studies of the National Institute for Space Research (CPTEC/INPE) in Brazi...
Presentation
Full-text available
Air pollution in large cities remains a complex and important challenge, and the building of urban parks impacts positively the quality of life in such environments. In the São Paulo Metropolitan Area, the emission of vehicle pollution is influenced by land use and interacts with the atmosphere and topography, resulting in significant spatial and t...
Thesis
Full-text available
High concentrations of pollutants such as tropospheric ozone pose health risks for the population of the São Paulo Metropolitan Area (SPMA). It is influenced by complex factors from anthropogenic (emission of precursor pollutants) and natural (such as the availability of sunlight) origin, typical of the study region. In the first part of the study,...
Conference Paper
Full-text available
Atmospheric pollution in the Sao Paulo Metropolitan Area (SPMA) has been investigated using the WRF/Chem model version 3.2.1 in a 1X1 km emission grid. Based on a local emission inventory, a control simulation (CTRL) was performed for the period 28/01-02/02/2014, during a summer season characterized by intense solar radiation and temperature positi...
Chapter
Full-text available
Between 2000 and 2010, the number of people living in slums worldwide has risen from 767 to 828 million, possibly reaching 889 million in 2020, according to UN projections (UN-HABITAT, 2011). The objective of this study is to evaluate land use and land cover associated to thermal indicators obtained through remote sensing for the Favela Paraisopoli...
Conference Paper
Full-text available
Health and air quality management in large metropolitan areas have always presented a challenge for local authorities and environmental agencies throughout the world, especially when it comes to developing countries. In Brazil, this can be verified in the São Paulo Metropolitan Area (SPMA), with about 20 million residents and approximately 9 millio...
Conference Paper
Full-text available
Tropospheric ozone (O3) is among the most hazardous pollutants in the São Paulo Metropolitan Area (SPMA), where the pollutant does not present a detectable decreasing tendency and shows higher concentrations at places such as urban parks and squares, characterized by lower vehicular pollutants concentration but often visited by the population. We i...
Book
Full-text available
This book describes the tropospheric ozone concentrations observed in the Sao Paulo Metropolitan Area (SPMA), Brazil, between 1996 and 2005, and different climatic patterns possibly linked to them. Ozone hourly data were used to calculate different time scale averages. Seasonal cycles were observed, with a spring maximum and autumn minimum. Station...

Questions

Questions (11)
Question
I am going through the history of climate change research since the 1800s, and I came across a very interesting graph built by the website skeptical science (which is actually very helpful). It mentions the main events in climate change research history, and, among those, there is a "lunar heat rate loss measured", somewhere between 1925-1930:
However, I found nothing about this topic/event anywhere (at least not for this period in time - only astronomy papers from the 1970s,). I am assuming that, in the context of early climate change research, it is possibly related to (theoretical) calculations of the heat loss of the moon, because at that time, scientists were debating Earth's greenhouse effect - and comparing Earth to another celestial body without atmosphere would show how important it is in mantaining heat in the surface of the Earth (and the mechanisms involved in that)?
I would be happy to learn from anyone whom has more knowledge on this matter, or could indicate a reference, or who were the scientists behind this study, how was the research carried out, etc.
Many thanks!
Question
We are running WRF/Chem 4.5.1 with RADM2.
In the wrfchemi files, I am looking at the E_NH3, BIGALK and E_C3H6. In the wrf output file, there seems to be several variables related to VOCs, but I am looking only at 'ald', 'tol', and 'xyl'.
We are running two simulations, a control and a sensitivity scenario - in the latter, there were decreases in total pollutants emissions, including VOCs... However, I don't see much change in VOCs between the two simulations, neither in the emission files nor in the output files. If I look at other pollutants such as CO, NO2, etc. there is a change, but not for VOCs. I am not sure if I am missing something here.
Which variables in those files do you usually look into when you want to analyse the VOCs? I have limited chemistry knowledge so I wanted to hear from anyone who's got more experience.
Any comemnts or recommendations are appreciated!
Question
I recently came into contact with them from a TED Talk and I'd like to know from your perspective or experience if these monitors are indeed reliable.
This is the link to their page: https://plumelabs.com/en/flow/
I mean, they seem ver promising: they are extremely portable, they measure many different pollutants, are easy to operate and are cheaper comparing to other regular air quality monitoring equipment.
But how about the quality of the measurements? Is the data as reliable as conventional air quality monitoring equipment? How does one calibrate these sensors?
I don't have much experience in making measurements or working with such equipments myself, so any feedback from more experienced colleagues would be highly appreciated.
Kind regards,
Julio
Question
I am currently looking for ways/methods to separate air pollution from mobile (vehicles) and industrial sources, if any. I need this information to be compared to health outcomes later on (YLL, DALY, that kind of analysis).
I do have separate emission information from industrial and vehicle sources for the area, but it's difficult to associate emissions to measured concentrations, and in my viewpoint it would be very questionable to compare emission information to health data later on, which would increase uncertainties even more. As far as I know, most tools for health impact assessment usually require concentration-related data, such as yearly averages (I have limited knowledge of those tools anyway).
I do not have access to any air quality modelling involving the industrial pollution, so my first thought was to use data from the monitoring stations located near industrial sites here (we have a handful of those monitoring points), which are representative of that type of exposure. Another option would be to investigate the PM composition, but I would like to avoid this option since it involves lab procedures which are time-consuming and costly, etc.
Any help or insights will be welcomed, thank you!
Question
I was recently invited to be a speaker at a conference but it seems rather strange. I had to pay USD 700 for registration. The website is beautiful, and it is organized by this "Longdom Conferences" which apparently works in the production of many other conferences. They insisted that I registered quickly and the contact was through my whatsapp (I provided my phone number when I had to make a pre-registration, but they never mentioned they would contact this way...). When I mentioned the high price for an unknown conference, they kept giving me discounts and insisting that I register soon. Well, there are names of professors from universities all over the world. I checked this "Longdom Conferences" and it is on the recent Dolos List of predatory conferences:
To be honest, I was not even aware this list existed. The conference name is: " New Frontiers in Renewable Energy and Resources" and this is their website:
Any advice would be helpful.
Question
Specifically, I'm looking for data from the Amazon region.
The models we use more often are WRF, BRAMS and RegCM, so any formats read by those models are useful.
Thank you!

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Projects

Projects (3)
Project
Evaluate the production and dissemination of scientific knowledge on climate change and climate adaptation, as well as its social impacts.
Project
The project highlights the importance of training for the establishment and strengthening of international cooperation processes in the field of water resources. The issue of capacity in the water sector is an essential cross-cutting topic and as far as the SDGs and the 2030 Agenda are concerned, one of the biggest challenges reported for incorporation into institutions was the lack of capacity. In the face of complex unresolved issues, it is necessary to strengthen education, training, awareness and encourage the creation of international learning networks, thereby accelerating the implementation of best practices in the sector. It is possible to raise awareness of how to improve water and sanitation through strengthening education. The theme also includes the importance of science and technology in solving water problems, applying cutting-edge solutions and disseminating environmental data, including guidance on the use of these materials in the implementation and development of public policies. Professional training, the dissemination of science and technology and integration with public policies, development and the exchange of experiences between different countries are fundamental points in the search for solutions to water problems and in reaching the SDGs. This, combined with other actions, can help in the implementation of SDG-6 (mainly in international cooperation and support for the development of developing countries), linked to SDG-4 (education) and SDG-17 (partnerships and means of implementation) .
Project
To evaluate the impacts of three guidelines from the Axis 3: “Urban Mobility” of the Strategic Directive Plan on the emission of air pollutants and greenhouse gases, as well as federal public policies on emission mitigation (cleaner fuels and more eletric vehicles). Methods involve emisison and atmospheric models (SMOKE, CMAQ, WRF) and cenarization of possible adherence to municipal and federal public policies. Research results are expected to contribute to the public management in the megacity of São Paulo, identifying impacts and the efficiency of the SDP urban mobility guidelines on air quality, and possibly suggesting alternative strategies to manage these issues.