Matthew D Adams

Matthew D Adams
University of Toronto | U of T · Department of Geography at Mississauga

PhD

About

44
Publications
34,267
Reads
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978
Citations
Introduction
Matthew D. Adams is an Assistant Professor in the Department of Geography at the University of Toronto Mississauga.
Additional affiliations
July 2017 - present
University of Toronto
Position
  • Professor (Assistant)
Education
September 2011 - May 2015
McMaster University
Field of study
  • Environmental Science - Air Pollution
September 2009 - May 2011
Lakehead University Thunder Bay Campus
Field of study
  • Lichen Biomonitoring - Air Pollution
September 2004 - May 2009
Lakehead University Thunder Bay Campus
Field of study
  • Environmental Science

Publications

Publications (44)
Article
This paper examines the change in air pollutant concentrations between 2005 and 2010 occurring in the City of Hamilton, Ontario, Canada. After analysis of stationary air pollutant concentration data, we analyze mobile air pollutant concentration data. Air pollutants included in the analysis are CO, PM2.5, SO2, NO, NO2, and NOX. Stationary monitorin...
Article
In this paper, we develop a land-use regression model for sulfur dioxide air pollution concentrations. We make use of mobile monitoring data collected in Hamilton, Ontario, Canada, between 2005 and 2010 inclusive. The observed SO2 concentrations are regressed against a comprehensive set of land use and transportation variables. Land use and transpo...
Article
Full-text available
Local variation (within sampling sites) affects lichen air pollution biomonitoring of trace element deposition patterns. When comparing between sampling sites, global variation must be greater than local variation, thus reducing local variation is important in biomonitoring studies. To reduce local variability, sampling protocols are introduced, pr...
Article
Full-text available
In this study, we estimate the weather-related increases in ambient air pollution (CO, NO2, SO2, O3 and PM2.5) in Brazil between 2003 and 2018. The impact of long-term weather changes on each air pollutant was defined as “weather penalty”. Overall, ambient air pollution levels in Brazil during the period 2003–2018 have decreased in most of the Braz...
Article
Full-text available
Background Air pollution exposure has been associated with critical neonatal morbidities, including low birth weight (LBW). However, little is known on short-term exposure to wildfire smoke and LBW. In this study, we estimated the association between birth weight following pregnancy and wildfire smoke exposure in more than 1.5 million newborns in B...
Article
Most of the epidemiological investigations looking at the health benefits of green spaces have measured the level of green areas by using only one approach, mainly the Normalized Difference Index – NDVI (a satellite-derived indicator). We hypothesized a difference in the association between health and green space depending on the metric used to mea...
Article
Full-text available
The global lockdown to mitigate COVID-19 pandemic health risks has altered human interactions with nature. Here, we report immediate impacts of changes in human activities on wildlife and environmental threats during the early lockdown months of 2020, based on 877 qualitative reports and 332 quantitative assessments from 89 different studies. Hundr...
Article
Dispersion modelling is an effective tool to estimate traffic-related fine particulate matter (PM2.5) concentrations in near-road environments. However, many sources of uncertainty and variability are associated with the process of near-road dispersion modelling, which renders a single-number estimate of concentration a poor indicator of near-road...
Article
Ultrafine particulate matter (UFP) air pollution is unevenly distributed across urban environments. Disparities in routine activity patterns, such as the exposure risk we face at work or on the commute, can contribute to chronic exposure-related health outcomes that place excess burdening on vulnerable population groups. In Canada, there is disagre...
Article
Residents of densely populated cities face elevated exposure risk to ambient air pollution. Epidemiological studies often estimate exposure risk with land use regression (LUR) models that predict the spatial distribution of air pollutants using surrounding land use characteristics. We examined the effects of estimating city-wide air pollution conce...
Article
This study investigates the influence of meteorology, land use, built environment, and traffic characteristics on near-road ultrafine particle (UFP) concentrations. To achieve this objective, minute-level UFP concentrations were measured at various locations along a major arterial road in the Greater Toronto Area (GTA) between February and May 2019...
Article
In March of 2020, the province of Ontario declared a State of Emergency (SOE) to reduce the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes the coronavirus disease (COVID-19). This disruption to the economy provided an opportunity to measure change in air pollution when the population spends more time at home wi...
Article
The spread of the 2019 novel coronavirus (COVID-19) has challenged governments to develop public policies to reduce the load of the COVID-19 on health care systems, which is commonly referred to as “flattening the curve”. This study aims to address this issue by proposing a spatial multicriteria approach to estimate the risk of the Brazilian health...
Article
Fine particulate matter air pollution is a global issue; cycling is a global activity. In our paper, particulate matter less than 2.5 μm (PM2.5) air pollution data obtained by community scientists while cycling is used to develop high-resolution spatial air pollution maps. Mapping is completed using a land use regression model for Charlotte, North...
Article
Land use regression models (LUR) associate observed air pollution concentrations with surrounding land use characteristics for air pollution modelling. This technique is common in urban landscapes focused at a city-wide spatial scale. Our study tested the applicability of LUR modelling at a local scale, defined as multiple air monitors within a nei...
Article
Full-text available
The data in this article provides route geometries and ultrafine particulate dosage information for a simulation of the home-to-school walking commute for children at 296,862 residential addresses in the city of Toronto, Canada. The datasets include dosage estimates that use a modelling approach that accounts for terrain, physiology and spatial var...
Article
Exposure to ultrafine particulate air pollution (UFP) contributes to adverse health effects in sensitive population groups such as children. There is a need to explore UFP exposure in terms of respiratory dosage, which leverages the effect of activity-specific ventilation rates. Commute-related dosage, which describes the dosage that occurs during...
Article
Full-text available
Anthropogenic land expansion, particularly urbanization, is pervasive, dramatically modifies the environment and is a major threat to wildlife with its associated environmental stressors. Urban remnant vegetation can help mitigate these impacts and could be vital for species unable to survive in harsh urban environments. Although resembling nonurba...
Chapter
Human exposure to elevated air pollution has many negative health outcomes. Communicating elevated air pollution concentrations with an air quality (health) index is one an approach to reduce population exposure. The indices translate a cocktail of air pollutants to a single value that can be understood by the general public. People can use the ind...
Article
Full-text available
Mobile air pollution monitoring is an effective means of collecting spatially and temporally diverse air pollution samples. These observations are often used to predict long-term air pollution concentrations using temporal adjustments based on the time-series of a fixed location monitor. Temporal adjustments are required because the time-series is...
Article
The economies of scale and network effects from agglomeration form the foundation of the economic geography of cities. These agglomerations can be associated with transportation accessibility benefits and negative externalities from increased levels of harmful emissions, both of which are impacted by congestion. Such factors imply a tension between...
Article
Full-text available
Air pollution was observed in Hamilton, Ontario, Canada using monitors installed in a mobile platform from November 2005 up to November 2016. The dataset is an aggregation of several project specific monitoring days, which attempted to quantify air pollution spatial variation under varying conditions or in specific regions. Pollutants observed incl...
Article
Full-text available
In this paper, we demonstrate three unique use cases of LiDAR data and processing, which can be implemented in an urban metropolis to determine the challenges that are associated with climate change. LiDAR data for the City of Toronto were collected in April 2015 with a density of 10 points/m2. We utilized both a digital terrain model and a bare ea...
Article
Little work has accounted for congestion, using data that reflects driving patterns, traffic volume, and speed, to examine the association between traffic emissions and human health. In this study, we performed a health risk assessment of PM2.5 emissions during congestion periods in the Greater Toronto and Hamilton Area (GTHA), Canada. Specifically...
Article
Full-text available
Air pollution around schools has been considered a crucial concern worldwide, as children are at school for a large part of the day. A growing body of evidence finds that schools are located in areas with high levels of air pollutants with significant contributions from motor vehicles. Determining children exposure to air pollutants at schools is c...
Article
Background: Little is known about the health risks of air pollution and cardiorespiratory diseases, globally, across regions and populations, which may differ because of external factors. Objectives: We systematically reviewed the evidence on the association between air pollution and cardiorespiratory diseases (hospital admissions and mortality)...
Article
Plug-in hybrid electric vehicles (PHEVs) have the potential to decrease greenhouse gas emissions given certain power generation profiles. The adoption of PHEVs is associated with significant social, economic, environmental , and health benefits. However, most researchers in literature generally estimate emissions using national averages of emission...
Article
Previous investigations have reported intake fraction (iF) for different environments, which include ambient concentrations (outdoor exposure) and microenvironments (indoor exposure). However, little is known about iF variations due to space-time factors, especially in microenvironments. In this paper, we performed a spatio-temporal analysis of par...
Article
Traffic emissions pose a major environmental threat to human health in many countries. Most studies of traffic emissions have applied spatial models to achieve more accurate exposure assessments. Spatial analysis is a technique that takes into account various geographic phenomena, providing data that can be communicated to potentially affected peop...
Article
Exposure to traffic emission is harmful to human health. Emission inventories are essential to public health policies aiming at protecting human health, especially, in areas with incomplete or non-existent air pollution monitoring networks. In Brazil, for example, only 1.7% of municipal districts have a monitoring network, and only a few studies ha...
Article
Neighborhood characteristics affect an individual's quality of life. Although several studies have examined the relationship between neighborhood environments and human health, we are unaware of studies that have examined the distance-decay of this effect and then presented the risk results spatially. Our study is unique in that is explores the hea...
Article
In this paper, we demonstrate the calculation of personal air pollution exposure during trips made by active transportation using activity patterns without personal monitors. We calculate exposure as the inhaled dose of particulate matter 2.5 μg or smaller. Two modes of active transportation are compared, and they include cycling and walking. Ambie...
Article
Air pollution poses health concerns at the global scale. The challenge of managing air pollution is significant because of the many air pollutants, insufficient funds for monitoring and abatement programs, and political and social challenges in defining policy to limit emissions. Some governments provide citizens with air pollution health risk info...
Article
In this paper, we develop a criticality index for air pollution monitoring networks. The index quantifies the effect on the system of removing an air pollution monitor, which is calculated as a weighted sum of the differences between baseline values interpolated with historical data using the entire monitoring set and values interpolated with each...
Article
Water monitoring networks are generally classified into surface water, precipitation, groundwater or water quality monitoring networks. The design of these networks typically occurs in isolation from each other. We present a regionalization approach to identify homogeneous subregions of large basins that are suitable as areas for the optimization o...
Chapter
Air pollution observational epidemiologic studies require long-term mean concentrations assigned to the subjects, which may be affected by both Berkson and classical error. Researchers have begun to use mobile monitoring techniques that allow for rapid-relocation of monitors to attempt to reduce Berkson, but in our study we demonstrate this approac...
Article
Lichen community composition was evaluated for both lichen cover and richness on a cliff face commonly used for recreational rock climbing. The sandstone outcrop is located on the Sibley Peninsula, which extends from the north shore of Lake Superior. One-hundred and twenty plots were examined. Each plot was 1 m2 in size, with 60 plots located on un...

Questions

Questions (2)
Question
I am looking for some references on children's minute ventilation rates and/or heart rates during walking and/or cycling. These values would ideally be of a healthy population.
Question
I am looking for a Heuristic Search to use in R for combinatorial optimization. I will need to choose a specified number of items from the set. For each combination I calculate a cost, which I want to minimize.

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Projects

Projects (2)
Project
Hurontario is a busy corridor in Mississauga, Ontario. This project collects and characterizes near-road particulate matter concentrations and size distributions along with real-time traffic data at Hurontario's major intersections.