Martin Lavoie
Dados Biográficos
| ID | 6049444 |
|---|---|
| NOME | Martin Lavoie |
| PRENOMES | Martin |
| SOBRENOME | Lavoie |
| ASSINATURA | LAVOIE M |
| AFILIAÇÕES | St. Francis Xavier University |
| ORCID | 0000-0003-2348-7686 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 15 |
| TOTAL DE CITAÇÕES | 33 |
| TOTAL COMO AUTOR | 15 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2000 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 3 |
Rethinking EPA Method 21 Surface Emissions Monitoring
Municipal solid waste (MSW) landfills are major methane sources, yet regulations still rely on U.S. EPA Method 21 Surface Emissions Monitoring (SEM) or similar protocols developed for industrial leak detection and defined by 30-m traverse spacing and a 500 ppmv action threshold. Despite long use, its probability of detection (POD), minimum detection limit (MDL), and emission-reduction potential at MSW landfills have not been quantitatively charac…
A review of landfill methane emission detection, localization, and quantification systems
We address the need for more accurate and effective monitoring of methane emissions from landfills by reviewing traditional and emerging emissions detection, localization, and quantification field-based technologies. This review explores the advantages and limitations of current and emerging technologies and defines each monitoring technology as a system composed of a platform, sensor hardware, and data post-processing. Mathematical models (e.g.,…
A controlled release experiment for investigating methane measurement performance at landfills
We assessed the performance of various methane measurement solutions in landfill applications during November 6, 2023 and November 14, 2023. A measurement solution is defined as a system or market offering that quantifies and/or localizes emissions. Our study involved full-scale multipoint- and area-source (dispersed) controlled releases of methane from the ground surface of a closed 25-ha landfill with collection system and a background emission…
From privies to disease
OBJECTIVE: This project combines the analysis of parasites and pollen remains from a wealthy 19th century household in Québec City, Canada to examine health as it intersects with ecological and cultural factors of disease transmission in changing urban environments. MATERIALS: Nineteen sediment samples from two privy structures from a 19th century wealthy household in Québec City, Canada. METHODS: The parasite analysis was conducted by examining …
Sociodemographic and Population Exposure to Upstream Oil and Gas Operations in Canada
Canada, as one of the largest oil and gas producer in the world, is responsible for large emissions of methane, a powerful greenhouse gas. At low levels, methane is not a direct threat to human health; however, human health is affected by exposure to pollutants co-emitted with methane. The objectives of this research were to estimate and map pollutants emitted by the oil and gas industry, to assess the demographic of the population exposed to oil…
Active and inactive oil and gas sites contribute to methane emissions in western Saskatchewan, Canada
The oil and gas industry is Canada’s largest contributor to national methane (CH4) emissions. To quantify the input of active and inactive (suspended and abandoned) oil and gas infrastructure to regional CH4 budgets, we conducted truck-based measurements (transect-based and OTM 33A) with a greenhouse gas analyzer, complimented with optical gas imaging at oil-producing sites of Saskatchewan, including understudied regions. We found that inactive s…
Different regional climatic drivers of Holocene large wildfires in boreal forests of northeastern America
Global warming could increase climatic instability and large wildfire activity in circumboreal regions, potentially impairing both ecosystem functioning and human health. However, links between large wildfire events and climatic and/or meteorological conditions are still poorly understood, partly because few studies have covered a wide range of past climate-fire interactions. We compared palaeofire and simulated climatic data over the last 7000 y…
A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation
Here, we present results from the most comprehensive compilation of Holocene peat soil properties with associated carbon and nitrogen accumulation rates for northern peatlands. Our database consists of 268 peat cores from 215 sites located north of 45°N. It encompasses regions within which peat carbon data have only recently become available, such as the West Siberia Lowlands, the Hudson Bay Lowlands, Kamchatka in Far East Russia, and the Tibetan…
Impact of fire on long-term vegetation dynamics of ombrotrophic peatlands in northwestern Québec, Canada
A 7000-year record of local fire history was reconstructed from three ombrotrophic peatlands in the James Bay lowlands (northwestern Québec, Canada) using a high-resolution analysis of macroscopic charcoal (long axis≥0.5 mm). The impact of fire on vegetation changes was evaluated using detailed analysis of plant macrofossils. Compared to upland boreal forest, fire incidence in these Sphagnum -dominated bogs is rather low. Past fire occurrence see…
Boreal peatland margins as repository sites of long-term natural disturbances of balsam fir/spruce forests
A multidisciplinary, high-resolution paleoecological study (Lepidoptera and plant remains, macroscopic charcoal, pollen) was conducted on a 4000-yr peat monolith extracted from the margin of an ombrotrophic peatland on Anticosti Island (Gulf of St. Lawrence, eastern Canada) to reconstruct the long-term natural disturbances (insect outbreaks, forest fires) of a balsam fir/spruce forest. We hypothesized that an activity of insect defoliators (spruc…
The natural environment of the Québec City region during the Holocene
In the St Lawrence River valley the 10,000-year period following the Wisconsinian glaciation was marked by major geographic and climatic changes which influenced the development of plant communities. In this paper the Holocene environments in the Québec City region have been reconstructed on the basis of palaeogeographic and palaeoecological data. Fluctuations in relative sea level, particularly in recent millennia, are of particular interest in …
Environmental impact of early palaeometallurgy
Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada
This study combines different methods, including grain size, macrofossil, and pollen analyses, to reconstruct paleogeographical and paleoclimatological conditions for periods before, during, and after the isolation of a small lake (Lake Kachishayoot) in northern Québec. After the retreat of the Laurentide Ice Sheet around 8000 14 C yr B.P., the area was submerged by the Tyrrell Sea. The transition from marine to lacustrine environment occurred ab…
Holocene Vegetation Dynamics of Anticosti Island, Québec, and Consequences of Remoteness on Ecological Succession
The postglacial vegetation history of Anticosti Island in the Gulf of St. Lawrence, Québec, was reconstructed from pollen analysis of three sites, providing the first paleoecological data for the island. The earliest plant communities (8550–7770 14 C yr B.P.; 9500–8500 cal yr B.P.) were characterized by a high representation of green alder ( Alnus crispa ), indicating an open environment with sparse spruce ( Picea ). Between 7770 and 3700 14 C yr…
Postglacial water-level changes of a small lake in southern Québec, Canada
Sediment stratigraphy and palaeobotanical data from five cores were used to reconstruct the postglacial water-level changes of a small lake in southern Québec. The cores were taken along two transects from the centre of the lake to the margins. Lake level was relatively high before 11 000 cal. BP, when sedimen tation was characterized by the deposition of silty gyttja (.13 000 cal. BP) and marl (13 000–11 000 cal. BP). From 11 000 to 7000 cal. BP…
A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation
Here, we present results from the most comprehensive compilation of Holocene peat soil properties with associated carbon and nitrogen accumulation rates for northern peatlands. Our database consists of 268 peat cores from 215 sites located north of 45°N. It encompasses regions within which peat carbon data have only recently become available, such as the West Siberia Lowlands, the Hudson Bay Lowlands, Kamchatka in Far East Russia, and the Tibetan…
Postglacial water-level changes of a small lake in southern Québec, Canada
Sediment stratigraphy and palaeobotanical data from five cores were used to reconstruct the postglacial water-level changes of a small lake in southern Québec. The cores were taken along two transects from the centre of the lake to the margins. Lake level was relatively high before 11 000 cal. BP, when sedimen tation was characterized by the deposition of silty gyttja (.13 000 cal. BP) and marl (13 000–11 000 cal. BP). From 11 000 to 7000 cal. BP…
Environmental impact of early palaeometallurgy
Postglacial water-level changes of a small lake in southern Québec, Canada
Sediment stratigraphy and palaeobotanical data from five cores were used to reconstruct the postglacial water-level changes of a small lake in southern Québec. The cores were taken along two transects from the centre of the lake to the margins. Lake level was relatively high before 11 000 cal. BP, when sedimen tation was characterized by the deposition of silty gyttja (.13 000 cal. BP) and marl (13 000–11 000 cal. BP). From 11 000 to 7000 cal. BP…
Holocene Vegetation Dynamics of Anticosti Island, Québec, and Consequences of Remoteness on Ecological Succession
The postglacial vegetation history of Anticosti Island in the Gulf of St. Lawrence, Québec, was reconstructed from pollen analysis of three sites, providing the first paleoecological data for the island. The earliest plant communities (8550–7770 14 C yr B.P.; 9500–8500 cal yr B.P.) were characterized by a high representation of green alder ( Alnus crispa ), indicating an open environment with sparse spruce ( Picea ). Between 7770 and 3700 14 C yr…
Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada
This study combines different methods, including grain size, macrofossil, and pollen analyses, to reconstruct paleogeographical and paleoclimatological conditions for periods before, during, and after the isolation of a small lake (Lake Kachishayoot) in northern Québec. After the retreat of the Laurentide Ice Sheet around 8000 14 C yr B.P., the area was submerged by the Tyrrell Sea. The transition from marine to lacustrine environment occurred ab…
Environmental impact of early palaeometallurgy
Boreal peatland margins as repository sites of long-term natural disturbances of balsam fir/spruce forests
A multidisciplinary, high-resolution paleoecological study (Lepidoptera and plant remains, macroscopic charcoal, pollen) was conducted on a 4000-yr peat monolith extracted from the margin of an ombrotrophic peatland on Anticosti Island (Gulf of St. Lawrence, eastern Canada) to reconstruct the long-term natural disturbances (insect outbreaks, forest fires) of a balsam fir/spruce forest. We hypothesized that an activity of insect defoliators (spruc…
The natural environment of the Québec City region during the Holocene
In the St Lawrence River valley the 10,000-year period following the Wisconsinian glaciation was marked by major geographic and climatic changes which influenced the development of plant communities. In this paper the Holocene environments in the Québec City region have been reconstructed on the basis of palaeogeographic and palaeoecological data. Fluctuations in relative sea level, particularly in recent millennia, are of particular interest in …
Impact of fire on long-term vegetation dynamics of ombrotrophic peatlands in northwestern Québec, Canada
A 7000-year record of local fire history was reconstructed from three ombrotrophic peatlands in the James Bay lowlands (northwestern Québec, Canada) using a high-resolution analysis of macroscopic charcoal (long axis≥0.5 mm). The impact of fire on vegetation changes was evaluated using detailed analysis of plant macrofossils. Compared to upland boreal forest, fire incidence in these Sphagnum -dominated bogs is rather low. Past fire occurrence see…
A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation
Here, we present results from the most comprehensive compilation of Holocene peat soil properties with associated carbon and nitrogen accumulation rates for northern peatlands. Our database consists of 268 peat cores from 215 sites located north of 45°N. It encompasses regions within which peat carbon data have only recently become available, such as the West Siberia Lowlands, the Hudson Bay Lowlands, Kamchatka in Far East Russia, and the Tibetan…
Different regional climatic drivers of Holocene large wildfires in boreal forests of northeastern America
Global warming could increase climatic instability and large wildfire activity in circumboreal regions, potentially impairing both ecosystem functioning and human health. However, links between large wildfire events and climatic and/or meteorological conditions are still poorly understood, partly because few studies have covered a wide range of past climate-fire interactions. We compared palaeofire and simulated climatic data over the last 7000 y…
Active and inactive oil and gas sites contribute to methane emissions in western Saskatchewan, Canada
The oil and gas industry is Canada’s largest contributor to national methane (CH4) emissions. To quantify the input of active and inactive (suspended and abandoned) oil and gas infrastructure to regional CH4 budgets, we conducted truck-based measurements (transect-based and OTM 33A) with a greenhouse gas analyzer, complimented with optical gas imaging at oil-producing sites of Saskatchewan, including understudied regions. We found that inactive s…
Sociodemographic and Population Exposure to Upstream Oil and Gas Operations in Canada
Canada, as one of the largest oil and gas producer in the world, is responsible for large emissions of methane, a powerful greenhouse gas. At low levels, methane is not a direct threat to human health; however, human health is affected by exposure to pollutants co-emitted with methane. The objectives of this research were to estimate and map pollutants emitted by the oil and gas industry, to assess the demographic of the population exposed to oil…
From privies to disease
OBJECTIVE: This project combines the analysis of parasites and pollen remains from a wealthy 19th century household in Québec City, Canada to examine health as it intersects with ecological and cultural factors of disease transmission in changing urban environments. MATERIALS: Nineteen sediment samples from two privy structures from a 19th century wealthy household in Québec City, Canada. METHODS: The parasite analysis was conducted by examining …
Rethinking EPA Method 21 Surface Emissions Monitoring
Municipal solid waste (MSW) landfills are major methane sources, yet regulations still rely on U.S. EPA Method 21 Surface Emissions Monitoring (SEM) or similar protocols developed for industrial leak detection and defined by 30-m traverse spacing and a 500 ppmv action threshold. Despite long use, its probability of detection (POD), minimum detection limit (MDL), and emission-reduction potential at MSW landfills have not been quantitatively charac…
A review of landfill methane emission detection, localization, and quantification systems
We address the need for more accurate and effective monitoring of methane emissions from landfills by reviewing traditional and emerging emissions detection, localization, and quantification field-based technologies. This review explores the advantages and limitations of current and emerging technologies and defines each monitoring technology as a system composed of a platform, sensor hardware, and data post-processing. Mathematical models (e.g.,…
A controlled release experiment for investigating methane measurement performance at landfills
We assessed the performance of various methane measurement solutions in landfill applications during November 6, 2023 and November 14, 2023. A measurement solution is defined as a system or market offering that quantifies and/or localizes emissions. Our study involved full-scale multipoint- and area-source (dispersed) controlled releases of methane from the ground surface of a closed 25-ha landfill with collection system and a background emission…
Geography (9 obras) · Geology and Paleoclimatology Research (7 obras) · Holocene (7 obras) · Environmental Science (6 obras) · Geology (6 obras) · Physical geography (6 obras) · Biology (5 obras) · Ecology (5 obras) · Geology (5 obras) · Methane (5 obras)